MAYBE
Time: 3.132205
TRS:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
DP:
DP:
{
U12#(mark X1, X2, X3) -> U12#(X1, X2, X3),
U12#(ok X1, ok X2, ok X3) -> U12#(X1, X2, X3),
active# U12(X1, X2, X3) -> U12#(active X1, X2, X3),
active# U12(X1, X2, X3) -> active# X1,
active# U12(tt(), N, XS) -> snd# splitAt(N, XS),
active# U12(tt(), N, XS) -> splitAt#(N, XS),
active# U11(X1, X2, X3) -> active# X1,
active# U11(X1, X2, X3) -> U11#(active X1, X2, X3),
active# U11(tt(), N, XS) -> U12#(tt(), N, XS),
active# snd X -> active# X,
active# snd X -> snd# active X,
active# snd pair(X, Y) -> U51#(tt(), Y),
active# splitAt(X1, X2) -> active# X1,
active# splitAt(X1, X2) -> active# X2,
active# splitAt(X1, X2) -> splitAt#(X1, active X2),
active# splitAt(X1, X2) -> splitAt#(active X1, X2),
active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS),
active# splitAt(0(), XS) -> pair#(nil(), XS),
active# U22(X1, X2) -> active# X1,
active# U22(X1, X2) -> U22#(active X1, X2),
active# U21(X1, X2) -> active# X1,
active# U21(X1, X2) -> U21#(active X1, X2),
active# U21(tt(), X) -> U22#(tt(), X),
active# U32(X1, X2) -> active# X1,
active# U32(X1, X2) -> U32#(active X1, X2),
active# U31(X1, X2) -> active# X1,
active# U31(X1, X2) -> U31#(active X1, X2),
active# U31(tt(), N) -> U32#(tt(), N),
active# U42(X1, X2, X3) -> active# X1,
active# U42(X1, X2, X3) -> U42#(active X1, X2, X3),
active# U42(tt(), N, XS) -> head# afterNth(N, XS),
active# U42(tt(), N, XS) -> afterNth#(N, XS),
active# U41(X1, X2, X3) -> active# X1,
active# U41(X1, X2, X3) -> U41#(active X1, X2, X3),
active# U41(tt(), N, XS) -> U42#(tt(), N, XS),
active# head X -> active# X,
active# head X -> head# active X,
active# head cons(N, XS) -> U31#(tt(), N),
active# afterNth(N, XS) -> U11#(tt(), N, XS),
active# afterNth(X1, X2) -> active# X1,
active# afterNth(X1, X2) -> active# X2,
active# afterNth(X1, X2) -> afterNth#(X1, active X2),
active# afterNth(X1, X2) -> afterNth#(active X1, X2),
active# U52(X1, X2) -> active# X1,
active# U52(X1, X2) -> U52#(active X1, X2),
active# U51(X1, X2) -> active# X1,
active# U51(X1, X2) -> U51#(active X1, X2),
active# U51(tt(), Y) -> U52#(tt(), Y),
active# U62(X1, X2, X3, X4) -> active# X1,
active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4),
active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS),
active# U61(X1, X2, X3, X4) -> active# X1,
active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4),
active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS),
active# U63(X1, X2, X3, X4) -> active# X1,
active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4),
active# U63(tt(), N, X, XS) -> splitAt#(N, XS),
active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X),
active# U64(X1, X2) -> active# X1,
active# U64(X1, X2) -> U64#(active X1, X2),
active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS),
active# U64(pair(YS, ZS), X) -> cons#(X, YS),
active# pair(X1, X2) -> active# X1,
active# pair(X1, X2) -> active# X2,
active# pair(X1, X2) -> pair#(X1, active X2),
active# pair(X1, X2) -> pair#(active X1, X2),
active# cons(X1, X2) -> active# X1,
active# cons(X1, X2) -> cons#(active X1, X2),
active# U72(X1, X2) -> active# X1,
active# U72(X1, X2) -> U72#(active X1, X2),
active# U71(X1, X2) -> active# X1,
active# U71(X1, X2) -> U71#(active X1, X2),
active# U71(tt(), XS) -> U72#(tt(), XS),
active# U82(X1, X2, X3) -> active# X1,
active# U82(X1, X2, X3) -> U82#(active X1, X2, X3),
active# U82(tt(), N, XS) -> splitAt#(N, XS),
active# U82(tt(), N, XS) -> fst# splitAt(N, XS),
active# U81(X1, X2, X3) -> active# X1,
active# U81(X1, X2, X3) -> U81#(active X1, X2, X3),
active# U81(tt(), N, XS) -> U82#(tt(), N, XS),
active# fst X -> active# X,
active# fst X -> fst# active X,
active# fst pair(X, Y) -> U21#(tt(), X),
active# natsFrom N -> cons#(N, natsFrom s N),
active# natsFrom N -> natsFrom# s N,
active# natsFrom N -> s# N,
active# natsFrom X -> active# X,
active# natsFrom X -> natsFrom# active X,
active# s X -> active# X,
active# s X -> s# active X,
active# sel(N, XS) -> U41#(tt(), N, XS),
active# sel(X1, X2) -> active# X1,
active# sel(X1, X2) -> active# X2,
active# sel(X1, X2) -> sel#(X1, active X2),
active# sel(X1, X2) -> sel#(active X1, X2),
active# tail X -> active# X,
active# tail X -> tail# active X,
active# tail cons(N, XS) -> U71#(tt(), XS),
active# take(N, XS) -> U81#(tt(), N, XS),
active# take(X1, X2) -> active# X1,
active# take(X1, X2) -> active# X2,
active# take(X1, X2) -> take#(X1, active X2),
active# take(X1, X2) -> take#(active X1, X2),
U11#(mark X1, X2, X3) -> U11#(X1, X2, X3),
U11#(ok X1, ok X2, ok X3) -> U11#(X1, X2, X3),
snd# mark X -> snd# X,
snd# ok X -> snd# X,
splitAt#(X1, mark X2) -> splitAt#(X1, X2),
splitAt#(mark X1, X2) -> splitAt#(X1, X2),
splitAt#(ok X1, ok X2) -> splitAt#(X1, X2),
U22#(mark X1, X2) -> U22#(X1, X2),
U22#(ok X1, ok X2) -> U22#(X1, X2),
U21#(mark X1, X2) -> U21#(X1, X2),
U21#(ok X1, ok X2) -> U21#(X1, X2),
U32#(mark X1, X2) -> U32#(X1, X2),
U32#(ok X1, ok X2) -> U32#(X1, X2),
U31#(mark X1, X2) -> U31#(X1, X2),
U31#(ok X1, ok X2) -> U31#(X1, X2),
U42#(mark X1, X2, X3) -> U42#(X1, X2, X3),
U42#(ok X1, ok X2, ok X3) -> U42#(X1, X2, X3),
U41#(mark X1, X2, X3) -> U41#(X1, X2, X3),
U41#(ok X1, ok X2, ok X3) -> U41#(X1, X2, X3),
head# mark X -> head# X,
head# ok X -> head# X,
afterNth#(X1, mark X2) -> afterNth#(X1, X2),
afterNth#(mark X1, X2) -> afterNth#(X1, X2),
afterNth#(ok X1, ok X2) -> afterNth#(X1, X2),
U52#(mark X1, X2) -> U52#(X1, X2),
U52#(ok X1, ok X2) -> U52#(X1, X2),
U51#(mark X1, X2) -> U51#(X1, X2),
U51#(ok X1, ok X2) -> U51#(X1, X2),
U62#(mark X1, X2, X3, X4) -> U62#(X1, X2, X3, X4),
U62#(ok X1, ok X2, ok X3, ok X4) -> U62#(X1, X2, X3, X4),
U61#(mark X1, X2, X3, X4) -> U61#(X1, X2, X3, X4),
U61#(ok X1, ok X2, ok X3, ok X4) -> U61#(X1, X2, X3, X4),
U63#(mark X1, X2, X3, X4) -> U63#(X1, X2, X3, X4),
U63#(ok X1, ok X2, ok X3, ok X4) -> U63#(X1, X2, X3, X4),
U64#(mark X1, X2) -> U64#(X1, X2),
U64#(ok X1, ok X2) -> U64#(X1, X2),
pair#(X1, mark X2) -> pair#(X1, X2),
pair#(mark X1, X2) -> pair#(X1, X2),
pair#(ok X1, ok X2) -> pair#(X1, X2),
cons#(mark X1, X2) -> cons#(X1, X2),
cons#(ok X1, ok X2) -> cons#(X1, X2),
U72#(mark X1, X2) -> U72#(X1, X2),
U72#(ok X1, ok X2) -> U72#(X1, X2),
U71#(mark X1, X2) -> U71#(X1, X2),
U71#(ok X1, ok X2) -> U71#(X1, X2),
U82#(mark X1, X2, X3) -> U82#(X1, X2, X3),
U82#(ok X1, ok X2, ok X3) -> U82#(X1, X2, X3),
U81#(mark X1, X2, X3) -> U81#(X1, X2, X3),
U81#(ok X1, ok X2, ok X3) -> U81#(X1, X2, X3),
fst# mark X -> fst# X,
fst# ok X -> fst# X,
natsFrom# mark X -> natsFrom# X,
natsFrom# ok X -> natsFrom# X,
s# mark X -> s# X,
s# ok X -> s# X,
sel#(X1, mark X2) -> sel#(X1, X2),
sel#(mark X1, X2) -> sel#(X1, X2),
sel#(ok X1, ok X2) -> sel#(X1, X2),
tail# mark X -> tail# X,
tail# ok X -> tail# X,
take#(X1, mark X2) -> take#(X1, X2),
take#(mark X1, X2) -> take#(X1, X2),
take#(ok X1, ok X2) -> take#(X1, X2),
proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3),
proper# U12(X1, X2, X3) -> proper# X1,
proper# U12(X1, X2, X3) -> proper# X2,
proper# U12(X1, X2, X3) -> proper# X3,
proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3),
proper# U11(X1, X2, X3) -> proper# X1,
proper# U11(X1, X2, X3) -> proper# X2,
proper# U11(X1, X2, X3) -> proper# X3,
proper# snd X -> snd# proper X,
proper# snd X -> proper# X,
proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2),
proper# splitAt(X1, X2) -> proper# X1,
proper# splitAt(X1, X2) -> proper# X2,
proper# U22(X1, X2) -> U22#(proper X1, proper X2),
proper# U22(X1, X2) -> proper# X1,
proper# U22(X1, X2) -> proper# X2,
proper# U21(X1, X2) -> U21#(proper X1, proper X2),
proper# U21(X1, X2) -> proper# X1,
proper# U21(X1, X2) -> proper# X2,
proper# U32(X1, X2) -> U32#(proper X1, proper X2),
proper# U32(X1, X2) -> proper# X1,
proper# U32(X1, X2) -> proper# X2,
proper# U31(X1, X2) -> U31#(proper X1, proper X2),
proper# U31(X1, X2) -> proper# X1,
proper# U31(X1, X2) -> proper# X2,
proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3),
proper# U42(X1, X2, X3) -> proper# X1,
proper# U42(X1, X2, X3) -> proper# X2,
proper# U42(X1, X2, X3) -> proper# X3,
proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3),
proper# U41(X1, X2, X3) -> proper# X1,
proper# U41(X1, X2, X3) -> proper# X2,
proper# U41(X1, X2, X3) -> proper# X3,
proper# head X -> head# proper X,
proper# head X -> proper# X,
proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2),
proper# afterNth(X1, X2) -> proper# X1,
proper# afterNth(X1, X2) -> proper# X2,
proper# U52(X1, X2) -> U52#(proper X1, proper X2),
proper# U52(X1, X2) -> proper# X1,
proper# U52(X1, X2) -> proper# X2,
proper# U51(X1, X2) -> U51#(proper X1, proper X2),
proper# U51(X1, X2) -> proper# X1,
proper# U51(X1, X2) -> proper# X2,
proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4),
proper# U62(X1, X2, X3, X4) -> proper# X1,
proper# U62(X1, X2, X3, X4) -> proper# X2,
proper# U62(X1, X2, X3, X4) -> proper# X3,
proper# U62(X1, X2, X3, X4) -> proper# X4,
proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4),
proper# U61(X1, X2, X3, X4) -> proper# X1,
proper# U61(X1, X2, X3, X4) -> proper# X2,
proper# U61(X1, X2, X3, X4) -> proper# X3,
proper# U61(X1, X2, X3, X4) -> proper# X4,
proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4),
proper# U63(X1, X2, X3, X4) -> proper# X1,
proper# U63(X1, X2, X3, X4) -> proper# X2,
proper# U63(X1, X2, X3, X4) -> proper# X3,
proper# U63(X1, X2, X3, X4) -> proper# X4,
proper# U64(X1, X2) -> U64#(proper X1, proper X2),
proper# U64(X1, X2) -> proper# X1,
proper# U64(X1, X2) -> proper# X2,
proper# pair(X1, X2) -> pair#(proper X1, proper X2),
proper# pair(X1, X2) -> proper# X1,
proper# pair(X1, X2) -> proper# X2,
proper# cons(X1, X2) -> cons#(proper X1, proper X2),
proper# cons(X1, X2) -> proper# X1,
proper# cons(X1, X2) -> proper# X2,
proper# U72(X1, X2) -> U72#(proper X1, proper X2),
proper# U72(X1, X2) -> proper# X1,
proper# U72(X1, X2) -> proper# X2,
proper# U71(X1, X2) -> U71#(proper X1, proper X2),
proper# U71(X1, X2) -> proper# X1,
proper# U71(X1, X2) -> proper# X2,
proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3),
proper# U82(X1, X2, X3) -> proper# X1,
proper# U82(X1, X2, X3) -> proper# X2,
proper# U82(X1, X2, X3) -> proper# X3,
proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3),
proper# U81(X1, X2, X3) -> proper# X1,
proper# U81(X1, X2, X3) -> proper# X2,
proper# U81(X1, X2, X3) -> proper# X3,
proper# fst X -> fst# proper X,
proper# fst X -> proper# X,
proper# natsFrom X -> natsFrom# proper X,
proper# natsFrom X -> proper# X,
proper# s X -> s# proper X,
proper# s X -> proper# X,
proper# sel(X1, X2) -> sel#(proper X1, proper X2),
proper# sel(X1, X2) -> proper# X1,
proper# sel(X1, X2) -> proper# X2,
proper# tail X -> tail# proper X,
proper# tail X -> proper# X,
proper# take(X1, X2) -> take#(proper X1, proper X2),
proper# take(X1, X2) -> proper# X1,
proper# take(X1, X2) -> proper# X2,
top# mark X -> proper# X,
top# mark X -> top# proper X,
top# ok X -> active# X,
top# ok X -> top# active X
}
TRS:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
UR:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2)}
EDG:
{
(proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3), U11#(ok X1, ok X2, ok X3) -> U11#(X1, X2, X3))
(proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3), U11#(mark X1, X2, X3) -> U11#(X1, X2, X3))
(proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3), U41#(ok X1, ok X2, ok X3) -> U41#(X1, X2, X3))
(proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3), U41#(mark X1, X2, X3) -> U41#(X1, X2, X3))
(proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3), U81#(ok X1, ok X2, ok X3) -> U81#(X1, X2, X3))
(proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3), U81#(mark X1, X2, X3) -> U81#(X1, X2, X3))
(active# U11(X1, X2, X3) -> active# X1, active# take(X1, X2) -> take#(active X1, X2))
(active# U11(X1, X2, X3) -> active# X1, active# take(X1, X2) -> take#(X1, active X2))
(active# U11(X1, X2, X3) -> active# X1, active# take(X1, X2) -> active# X2)
(active# U11(X1, X2, X3) -> active# X1, active# take(X1, X2) -> active# X1)
(active# U11(X1, X2, X3) -> active# X1, active# take(N, XS) -> U81#(tt(), N, XS))
(active# U11(X1, X2, X3) -> active# X1, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# U11(X1, X2, X3) -> active# X1, active# tail X -> tail# active X)
(active# U11(X1, X2, X3) -> active# X1, active# tail X -> active# X)
(active# U11(X1, X2, X3) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2))
(active# U11(X1, X2, X3) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2))
(active# U11(X1, X2, X3) -> active# X1, active# sel(X1, X2) -> active# X2)
(active# U11(X1, X2, X3) -> active# X1, active# sel(X1, X2) -> active# X1)
(active# U11(X1, X2, X3) -> active# X1, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# U11(X1, X2, X3) -> active# X1, active# s X -> s# active X)
(active# U11(X1, X2, X3) -> active# X1, active# s X -> active# X)
(active# U11(X1, X2, X3) -> active# X1, active# natsFrom X -> natsFrom# active X)
(active# U11(X1, X2, X3) -> active# X1, active# natsFrom X -> active# X)
(active# U11(X1, X2, X3) -> active# X1, active# natsFrom N -> s# N)
(active# U11(X1, X2, X3) -> active# X1, active# natsFrom N -> natsFrom# s N)
(active# U11(X1, X2, X3) -> active# X1, active# natsFrom N -> cons#(N, natsFrom s N))
(active# U11(X1, X2, X3) -> active# X1, active# fst pair(X, Y) -> U21#(tt(), X))
(active# U11(X1, X2, X3) -> active# X1, active# fst X -> fst# active X)
(active# U11(X1, X2, X3) -> active# X1, active# fst X -> active# X)
(active# U11(X1, X2, X3) -> active# X1, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# U11(X1, X2, X3) -> active# X1, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# U11(X1, X2, X3) -> active# X1, active# U81(X1, X2, X3) -> active# X1)
(active# U11(X1, X2, X3) -> active# X1, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# U11(X1, X2, X3) -> active# X1, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# U11(X1, X2, X3) -> active# X1, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# U11(X1, X2, X3) -> active# X1, active# U82(X1, X2, X3) -> active# X1)
(active# U11(X1, X2, X3) -> active# X1, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# U11(X1, X2, X3) -> active# X1, active# U71(X1, X2) -> U71#(active X1, X2))
(active# U11(X1, X2, X3) -> active# X1, active# U71(X1, X2) -> active# X1)
(active# U11(X1, X2, X3) -> active# X1, active# U72(X1, X2) -> U72#(active X1, X2))
(active# U11(X1, X2, X3) -> active# X1, active# U72(X1, X2) -> active# X1)
(active# U11(X1, X2, X3) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2))
(active# U11(X1, X2, X3) -> active# X1, active# cons(X1, X2) -> active# X1)
(active# U11(X1, X2, X3) -> active# X1, active# pair(X1, X2) -> pair#(active X1, X2))
(active# U11(X1, X2, X3) -> active# X1, active# pair(X1, X2) -> pair#(X1, active X2))
(active# U11(X1, X2, X3) -> active# X1, active# pair(X1, X2) -> active# X2)
(active# U11(X1, X2, X3) -> active# X1, active# pair(X1, X2) -> active# X1)
(active# U11(X1, X2, X3) -> active# X1, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# U11(X1, X2, X3) -> active# X1, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# U11(X1, X2, X3) -> active# X1, active# U64(X1, X2) -> U64#(active X1, X2))
(active# U11(X1, X2, X3) -> active# X1, active# U64(X1, X2) -> active# X1)
(active# U11(X1, X2, X3) -> active# X1, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# U11(X1, X2, X3) -> active# X1, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# U11(X1, X2, X3) -> active# X1, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# U11(X1, X2, X3) -> active# X1, active# U63(X1, X2, X3, X4) -> active# X1)
(active# U11(X1, X2, X3) -> active# X1, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# U11(X1, X2, X3) -> active# X1, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# U11(X1, X2, X3) -> active# X1, active# U61(X1, X2, X3, X4) -> active# X1)
(active# U11(X1, X2, X3) -> active# X1, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# U11(X1, X2, X3) -> active# X1, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# U11(X1, X2, X3) -> active# X1, active# U62(X1, X2, X3, X4) -> active# X1)
(active# U11(X1, X2, X3) -> active# X1, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# U11(X1, X2, X3) -> active# X1, active# U51(X1, X2) -> U51#(active X1, X2))
(active# U11(X1, X2, X3) -> active# X1, active# U51(X1, X2) -> active# X1)
(active# U11(X1, X2, X3) -> active# X1, active# U52(X1, X2) -> U52#(active X1, X2))
(active# U11(X1, X2, X3) -> active# X1, active# U52(X1, X2) -> active# X1)
(active# U11(X1, X2, X3) -> active# X1, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# U11(X1, X2, X3) -> active# X1, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# U11(X1, X2, X3) -> active# X1, active# afterNth(X1, X2) -> active# X2)
(active# U11(X1, X2, X3) -> active# X1, active# afterNth(X1, X2) -> active# X1)
(active# U11(X1, X2, X3) -> active# X1, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# U11(X1, X2, X3) -> active# X1, active# head cons(N, XS) -> U31#(tt(), N))
(active# U11(X1, X2, X3) -> active# X1, active# head X -> head# active X)
(active# U11(X1, X2, X3) -> active# X1, active# head X -> active# X)
(active# U11(X1, X2, X3) -> active# X1, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# U11(X1, X2, X3) -> active# X1, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# U11(X1, X2, X3) -> active# X1, active# U41(X1, X2, X3) -> active# X1)
(active# U11(X1, X2, X3) -> active# X1, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# U11(X1, X2, X3) -> active# X1, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# U11(X1, X2, X3) -> active# X1, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# U11(X1, X2, X3) -> active# X1, active# U42(X1, X2, X3) -> active# X1)
(active# U11(X1, X2, X3) -> active# X1, active# U31(tt(), N) -> U32#(tt(), N))
(active# U11(X1, X2, X3) -> active# X1, active# U31(X1, X2) -> U31#(active X1, X2))
(active# U11(X1, X2, X3) -> active# X1, active# U31(X1, X2) -> active# X1)
(active# U11(X1, X2, X3) -> active# X1, active# U32(X1, X2) -> U32#(active X1, X2))
(active# U11(X1, X2, X3) -> active# X1, active# U32(X1, X2) -> active# X1)
(active# U11(X1, X2, X3) -> active# X1, active# U21(tt(), X) -> U22#(tt(), X))
(active# U11(X1, X2, X3) -> active# X1, active# U21(X1, X2) -> U21#(active X1, X2))
(active# U11(X1, X2, X3) -> active# X1, active# U21(X1, X2) -> active# X1)
(active# U11(X1, X2, X3) -> active# X1, active# U22(X1, X2) -> U22#(active X1, X2))
(active# U11(X1, X2, X3) -> active# X1, active# U22(X1, X2) -> active# X1)
(active# U11(X1, X2, X3) -> active# X1, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# U11(X1, X2, X3) -> active# X1, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# U11(X1, X2, X3) -> active# X1, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# U11(X1, X2, X3) -> active# X1, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# U11(X1, X2, X3) -> active# X1, active# splitAt(X1, X2) -> active# X2)
(active# U11(X1, X2, X3) -> active# X1, active# splitAt(X1, X2) -> active# X1)
(active# U11(X1, X2, X3) -> active# X1, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# U11(X1, X2, X3) -> active# X1, active# snd X -> snd# active X)
(active# U11(X1, X2, X3) -> active# X1, active# snd X -> active# X)
(active# U11(X1, X2, X3) -> active# X1, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# U11(X1, X2, X3) -> active# X1, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# U11(X1, X2, X3) -> active# X1, active# U11(X1, X2, X3) -> active# X1)
(active# U11(X1, X2, X3) -> active# X1, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# U11(X1, X2, X3) -> active# X1, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# U11(X1, X2, X3) -> active# X1, active# U12(X1, X2, X3) -> active# X1)
(active# U11(X1, X2, X3) -> active# X1, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# U22(X1, X2) -> active# X1, active# take(X1, X2) -> take#(active X1, X2))
(active# U22(X1, X2) -> active# X1, active# take(X1, X2) -> take#(X1, active X2))
(active# U22(X1, X2) -> active# X1, active# take(X1, X2) -> active# X2)
(active# U22(X1, X2) -> active# X1, active# take(X1, X2) -> active# X1)
(active# U22(X1, X2) -> active# X1, active# take(N, XS) -> U81#(tt(), N, XS))
(active# U22(X1, X2) -> active# X1, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# U22(X1, X2) -> active# X1, active# tail X -> tail# active X)
(active# U22(X1, X2) -> active# X1, active# tail X -> active# X)
(active# U22(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2))
(active# U22(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2))
(active# U22(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X2)
(active# U22(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X1)
(active# U22(X1, X2) -> active# X1, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# U22(X1, X2) -> active# X1, active# s X -> s# active X)
(active# U22(X1, X2) -> active# X1, active# s X -> active# X)
(active# U22(X1, X2) -> active# X1, active# natsFrom X -> natsFrom# active X)
(active# U22(X1, X2) -> active# X1, active# natsFrom X -> active# X)
(active# U22(X1, X2) -> active# X1, active# natsFrom N -> s# N)
(active# U22(X1, X2) -> active# X1, active# natsFrom N -> natsFrom# s N)
(active# U22(X1, X2) -> active# X1, active# natsFrom N -> cons#(N, natsFrom s N))
(active# U22(X1, X2) -> active# X1, active# fst pair(X, Y) -> U21#(tt(), X))
(active# U22(X1, X2) -> active# X1, active# fst X -> fst# active X)
(active# U22(X1, X2) -> active# X1, active# fst X -> active# X)
(active# U22(X1, X2) -> active# X1, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# U22(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# U22(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> active# X1)
(active# U22(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# U22(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# U22(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# U22(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> active# X1)
(active# U22(X1, X2) -> active# X1, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# U22(X1, X2) -> active# X1, active# U71(X1, X2) -> U71#(active X1, X2))
(active# U22(X1, X2) -> active# X1, active# U71(X1, X2) -> active# X1)
(active# U22(X1, X2) -> active# X1, active# U72(X1, X2) -> U72#(active X1, X2))
(active# U22(X1, X2) -> active# X1, active# U72(X1, X2) -> active# X1)
(active# U22(X1, X2) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2))
(active# U22(X1, X2) -> active# X1, active# cons(X1, X2) -> active# X1)
(active# U22(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(active X1, X2))
(active# U22(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(X1, active X2))
(active# U22(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X2)
(active# U22(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X1)
(active# U22(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# U22(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# U22(X1, X2) -> active# X1, active# U64(X1, X2) -> U64#(active X1, X2))
(active# U22(X1, X2) -> active# X1, active# U64(X1, X2) -> active# X1)
(active# U22(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# U22(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# U22(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# U22(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> active# X1)
(active# U22(X1, X2) -> active# X1, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# U22(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# U22(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> active# X1)
(active# U22(X1, X2) -> active# X1, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# U22(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# U22(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> active# X1)
(active# U22(X1, X2) -> active# X1, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# U22(X1, X2) -> active# X1, active# U51(X1, X2) -> U51#(active X1, X2))
(active# U22(X1, X2) -> active# X1, active# U51(X1, X2) -> active# X1)
(active# U22(X1, X2) -> active# X1, active# U52(X1, X2) -> U52#(active X1, X2))
(active# U22(X1, X2) -> active# X1, active# U52(X1, X2) -> active# X1)
(active# U22(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# U22(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# U22(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X2)
(active# U22(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X1)
(active# U22(X1, X2) -> active# X1, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# U22(X1, X2) -> active# X1, active# head cons(N, XS) -> U31#(tt(), N))
(active# U22(X1, X2) -> active# X1, active# head X -> head# active X)
(active# U22(X1, X2) -> active# X1, active# head X -> active# X)
(active# U22(X1, X2) -> active# X1, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# U22(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# U22(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> active# X1)
(active# U22(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# U22(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# U22(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# U22(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> active# X1)
(active# U22(X1, X2) -> active# X1, active# U31(tt(), N) -> U32#(tt(), N))
(active# U22(X1, X2) -> active# X1, active# U31(X1, X2) -> U31#(active X1, X2))
(active# U22(X1, X2) -> active# X1, active# U31(X1, X2) -> active# X1)
(active# U22(X1, X2) -> active# X1, active# U32(X1, X2) -> U32#(active X1, X2))
(active# U22(X1, X2) -> active# X1, active# U32(X1, X2) -> active# X1)
(active# U22(X1, X2) -> active# X1, active# U21(tt(), X) -> U22#(tt(), X))
(active# U22(X1, X2) -> active# X1, active# U21(X1, X2) -> U21#(active X1, X2))
(active# U22(X1, X2) -> active# X1, active# U21(X1, X2) -> active# X1)
(active# U22(X1, X2) -> active# X1, active# U22(X1, X2) -> U22#(active X1, X2))
(active# U22(X1, X2) -> active# X1, active# U22(X1, X2) -> active# X1)
(active# U22(X1, X2) -> active# X1, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# U22(X1, X2) -> active# X1, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# U22(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# U22(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# U22(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X2)
(active# U22(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X1)
(active# U22(X1, X2) -> active# X1, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# U22(X1, X2) -> active# X1, active# snd X -> snd# active X)
(active# U22(X1, X2) -> active# X1, active# snd X -> active# X)
(active# U22(X1, X2) -> active# X1, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# U22(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# U22(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> active# X1)
(active# U22(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# U22(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# U22(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> active# X1)
(active# U22(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# U32(X1, X2) -> active# X1, active# take(X1, X2) -> take#(active X1, X2))
(active# U32(X1, X2) -> active# X1, active# take(X1, X2) -> take#(X1, active X2))
(active# U32(X1, X2) -> active# X1, active# take(X1, X2) -> active# X2)
(active# U32(X1, X2) -> active# X1, active# take(X1, X2) -> active# X1)
(active# U32(X1, X2) -> active# X1, active# take(N, XS) -> U81#(tt(), N, XS))
(active# U32(X1, X2) -> active# X1, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# U32(X1, X2) -> active# X1, active# tail X -> tail# active X)
(active# U32(X1, X2) -> active# X1, active# tail X -> active# X)
(active# U32(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2))
(active# U32(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2))
(active# U32(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X2)
(active# U32(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X1)
(active# U32(X1, X2) -> active# X1, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# U32(X1, X2) -> active# X1, active# s X -> s# active X)
(active# U32(X1, X2) -> active# X1, active# s X -> active# X)
(active# U32(X1, X2) -> active# X1, active# natsFrom X -> natsFrom# active X)
(active# U32(X1, X2) -> active# X1, active# natsFrom X -> active# X)
(active# U32(X1, X2) -> active# X1, active# natsFrom N -> s# N)
(active# U32(X1, X2) -> active# X1, active# natsFrom N -> natsFrom# s N)
(active# U32(X1, X2) -> active# X1, active# natsFrom N -> cons#(N, natsFrom s N))
(active# U32(X1, X2) -> active# X1, active# fst pair(X, Y) -> U21#(tt(), X))
(active# U32(X1, X2) -> active# X1, active# fst X -> fst# active X)
(active# U32(X1, X2) -> active# X1, active# fst X -> active# X)
(active# U32(X1, X2) -> active# X1, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# U32(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# U32(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> active# X1)
(active# U32(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# U32(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# U32(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# U32(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> active# X1)
(active# U32(X1, X2) -> active# X1, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# U32(X1, X2) -> active# X1, active# U71(X1, X2) -> U71#(active X1, X2))
(active# U32(X1, X2) -> active# X1, active# U71(X1, X2) -> active# X1)
(active# U32(X1, X2) -> active# X1, active# U72(X1, X2) -> U72#(active X1, X2))
(active# U32(X1, X2) -> active# X1, active# U72(X1, X2) -> active# X1)
(active# U32(X1, X2) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2))
(active# U32(X1, X2) -> active# X1, active# cons(X1, X2) -> active# X1)
(active# U32(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(active X1, X2))
(active# U32(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(X1, active X2))
(active# U32(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X2)
(active# U32(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X1)
(active# U32(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# U32(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# U32(X1, X2) -> active# X1, active# U64(X1, X2) -> U64#(active X1, X2))
(active# U32(X1, X2) -> active# X1, active# U64(X1, X2) -> active# X1)
(active# U32(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# U32(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# U32(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# U32(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> active# X1)
(active# U32(X1, X2) -> active# X1, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# U32(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# U32(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> active# X1)
(active# U32(X1, X2) -> active# X1, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# U32(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# U32(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> active# X1)
(active# U32(X1, X2) -> active# X1, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# U32(X1, X2) -> active# X1, active# U51(X1, X2) -> U51#(active X1, X2))
(active# U32(X1, X2) -> active# X1, active# U51(X1, X2) -> active# X1)
(active# U32(X1, X2) -> active# X1, active# U52(X1, X2) -> U52#(active X1, X2))
(active# U32(X1, X2) -> active# X1, active# U52(X1, X2) -> active# X1)
(active# U32(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# U32(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# U32(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X2)
(active# U32(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X1)
(active# U32(X1, X2) -> active# X1, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# U32(X1, X2) -> active# X1, active# head cons(N, XS) -> U31#(tt(), N))
(active# U32(X1, X2) -> active# X1, active# head X -> head# active X)
(active# U32(X1, X2) -> active# X1, active# head X -> active# X)
(active# U32(X1, X2) -> active# X1, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# U32(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# U32(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> active# X1)
(active# U32(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# U32(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# U32(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# U32(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> active# X1)
(active# U32(X1, X2) -> active# X1, active# U31(tt(), N) -> U32#(tt(), N))
(active# U32(X1, X2) -> active# X1, active# U31(X1, X2) -> U31#(active X1, X2))
(active# U32(X1, X2) -> active# X1, active# U31(X1, X2) -> active# X1)
(active# U32(X1, X2) -> active# X1, active# U32(X1, X2) -> U32#(active X1, X2))
(active# U32(X1, X2) -> active# X1, active# U32(X1, X2) -> active# X1)
(active# U32(X1, X2) -> active# X1, active# U21(tt(), X) -> U22#(tt(), X))
(active# U32(X1, X2) -> active# X1, active# U21(X1, X2) -> U21#(active X1, X2))
(active# U32(X1, X2) -> active# X1, active# U21(X1, X2) -> active# X1)
(active# U32(X1, X2) -> active# X1, active# U22(X1, X2) -> U22#(active X1, X2))
(active# U32(X1, X2) -> active# X1, active# U22(X1, X2) -> active# X1)
(active# U32(X1, X2) -> active# X1, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# U32(X1, X2) -> active# X1, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# U32(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# U32(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# U32(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X2)
(active# U32(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X1)
(active# U32(X1, X2) -> active# X1, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# U32(X1, X2) -> active# X1, active# snd X -> snd# active X)
(active# U32(X1, X2) -> active# X1, active# snd X -> active# X)
(active# U32(X1, X2) -> active# X1, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# U32(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# U32(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> active# X1)
(active# U32(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# U32(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# U32(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> active# X1)
(active# U32(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# U42(X1, X2, X3) -> active# X1, active# take(X1, X2) -> take#(active X1, X2))
(active# U42(X1, X2, X3) -> active# X1, active# take(X1, X2) -> take#(X1, active X2))
(active# U42(X1, X2, X3) -> active# X1, active# take(X1, X2) -> active# X2)
(active# U42(X1, X2, X3) -> active# X1, active# take(X1, X2) -> active# X1)
(active# U42(X1, X2, X3) -> active# X1, active# take(N, XS) -> U81#(tt(), N, XS))
(active# U42(X1, X2, X3) -> active# X1, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# U42(X1, X2, X3) -> active# X1, active# tail X -> tail# active X)
(active# U42(X1, X2, X3) -> active# X1, active# tail X -> active# X)
(active# U42(X1, X2, X3) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2))
(active# U42(X1, X2, X3) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2))
(active# U42(X1, X2, X3) -> active# X1, active# sel(X1, X2) -> active# X2)
(active# U42(X1, X2, X3) -> active# X1, active# sel(X1, X2) -> active# X1)
(active# U42(X1, X2, X3) -> active# X1, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# U42(X1, X2, X3) -> active# X1, active# s X -> s# active X)
(active# U42(X1, X2, X3) -> active# X1, active# s X -> active# X)
(active# U42(X1, X2, X3) -> active# X1, active# natsFrom X -> natsFrom# active X)
(active# U42(X1, X2, X3) -> active# X1, active# natsFrom X -> active# X)
(active# U42(X1, X2, X3) -> active# X1, active# natsFrom N -> s# N)
(active# U42(X1, X2, X3) -> active# X1, active# natsFrom N -> natsFrom# s N)
(active# U42(X1, X2, X3) -> active# X1, active# natsFrom N -> cons#(N, natsFrom s N))
(active# U42(X1, X2, X3) -> active# X1, active# fst pair(X, Y) -> U21#(tt(), X))
(active# U42(X1, X2, X3) -> active# X1, active# fst X -> fst# active X)
(active# U42(X1, X2, X3) -> active# X1, active# fst X -> active# X)
(active# U42(X1, X2, X3) -> active# X1, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# U42(X1, X2, X3) -> active# X1, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# U42(X1, X2, X3) -> active# X1, active# U81(X1, X2, X3) -> active# X1)
(active# U42(X1, X2, X3) -> active# X1, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# U42(X1, X2, X3) -> active# X1, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# U42(X1, X2, X3) -> active# X1, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# U42(X1, X2, X3) -> active# X1, active# U82(X1, X2, X3) -> active# X1)
(active# U42(X1, X2, X3) -> active# X1, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# U42(X1, X2, X3) -> active# X1, active# U71(X1, X2) -> U71#(active X1, X2))
(active# U42(X1, X2, X3) -> active# X1, active# U71(X1, X2) -> active# X1)
(active# U42(X1, X2, X3) -> active# X1, active# U72(X1, X2) -> U72#(active X1, X2))
(active# U42(X1, X2, X3) -> active# X1, active# U72(X1, X2) -> active# X1)
(active# U42(X1, X2, X3) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2))
(active# U42(X1, X2, X3) -> active# X1, active# cons(X1, X2) -> active# X1)
(active# U42(X1, X2, X3) -> active# X1, active# pair(X1, X2) -> pair#(active X1, X2))
(active# U42(X1, X2, X3) -> active# X1, active# pair(X1, X2) -> pair#(X1, active X2))
(active# U42(X1, X2, X3) -> active# X1, active# pair(X1, X2) -> active# X2)
(active# U42(X1, X2, X3) -> active# X1, active# pair(X1, X2) -> active# X1)
(active# U42(X1, X2, X3) -> active# X1, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# U42(X1, X2, X3) -> active# X1, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# U42(X1, X2, X3) -> active# X1, active# U64(X1, X2) -> U64#(active X1, X2))
(active# U42(X1, X2, X3) -> active# X1, active# U64(X1, X2) -> active# X1)
(active# U42(X1, X2, X3) -> active# X1, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# U42(X1, X2, X3) -> active# X1, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# U42(X1, X2, X3) -> active# X1, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# U42(X1, X2, X3) -> active# X1, active# U63(X1, X2, X3, X4) -> active# X1)
(active# U42(X1, X2, X3) -> active# X1, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# U42(X1, X2, X3) -> active# X1, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# U42(X1, X2, X3) -> active# X1, active# U61(X1, X2, X3, X4) -> active# X1)
(active# U42(X1, X2, X3) -> active# X1, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# U42(X1, X2, X3) -> active# X1, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# U42(X1, X2, X3) -> active# X1, active# U62(X1, X2, X3, X4) -> active# X1)
(active# U42(X1, X2, X3) -> active# X1, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# U42(X1, X2, X3) -> active# X1, active# U51(X1, X2) -> U51#(active X1, X2))
(active# U42(X1, X2, X3) -> active# X1, active# U51(X1, X2) -> active# X1)
(active# U42(X1, X2, X3) -> active# X1, active# U52(X1, X2) -> U52#(active X1, X2))
(active# U42(X1, X2, X3) -> active# X1, active# U52(X1, X2) -> active# X1)
(active# U42(X1, X2, X3) -> active# X1, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# U42(X1, X2, X3) -> active# X1, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# U42(X1, X2, X3) -> active# X1, active# afterNth(X1, X2) -> active# X2)
(active# U42(X1, X2, X3) -> active# X1, active# afterNth(X1, X2) -> active# X1)
(active# U42(X1, X2, X3) -> active# X1, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# U42(X1, X2, X3) -> active# X1, active# head cons(N, XS) -> U31#(tt(), N))
(active# U42(X1, X2, X3) -> active# X1, active# head X -> head# active X)
(active# U42(X1, X2, X3) -> active# X1, active# head X -> active# X)
(active# U42(X1, X2, X3) -> active# X1, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# U42(X1, X2, X3) -> active# X1, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# U42(X1, X2, X3) -> active# X1, active# U41(X1, X2, X3) -> active# X1)
(active# U42(X1, X2, X3) -> active# X1, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# U42(X1, X2, X3) -> active# X1, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# U42(X1, X2, X3) -> active# X1, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# U42(X1, X2, X3) -> active# X1, active# U42(X1, X2, X3) -> active# X1)
(active# U42(X1, X2, X3) -> active# X1, active# U31(tt(), N) -> U32#(tt(), N))
(active# U42(X1, X2, X3) -> active# X1, active# U31(X1, X2) -> U31#(active X1, X2))
(active# U42(X1, X2, X3) -> active# X1, active# U31(X1, X2) -> active# X1)
(active# U42(X1, X2, X3) -> active# X1, active# U32(X1, X2) -> U32#(active X1, X2))
(active# U42(X1, X2, X3) -> active# X1, active# U32(X1, X2) -> active# X1)
(active# U42(X1, X2, X3) -> active# X1, active# U21(tt(), X) -> U22#(tt(), X))
(active# U42(X1, X2, X3) -> active# X1, active# U21(X1, X2) -> U21#(active X1, X2))
(active# U42(X1, X2, X3) -> active# X1, active# U21(X1, X2) -> active# X1)
(active# U42(X1, X2, X3) -> active# X1, active# U22(X1, X2) -> U22#(active X1, X2))
(active# U42(X1, X2, X3) -> active# X1, active# U22(X1, X2) -> active# X1)
(active# U42(X1, X2, X3) -> active# X1, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# U42(X1, X2, X3) -> active# X1, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# U42(X1, X2, X3) -> active# X1, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# U42(X1, X2, X3) -> active# X1, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# U42(X1, X2, X3) -> active# X1, active# splitAt(X1, X2) -> active# X2)
(active# U42(X1, X2, X3) -> active# X1, active# splitAt(X1, X2) -> active# X1)
(active# U42(X1, X2, X3) -> active# X1, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# U42(X1, X2, X3) -> active# X1, active# snd X -> snd# active X)
(active# U42(X1, X2, X3) -> active# X1, active# snd X -> active# X)
(active# U42(X1, X2, X3) -> active# X1, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# U42(X1, X2, X3) -> active# X1, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# U42(X1, X2, X3) -> active# X1, active# U11(X1, X2, X3) -> active# X1)
(active# U42(X1, X2, X3) -> active# X1, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# U42(X1, X2, X3) -> active# X1, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# U42(X1, X2, X3) -> active# X1, active# U12(X1, X2, X3) -> active# X1)
(active# U42(X1, X2, X3) -> active# X1, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# afterNth(X1, X2) -> active# X1, active# take(X1, X2) -> take#(active X1, X2))
(active# afterNth(X1, X2) -> active# X1, active# take(X1, X2) -> take#(X1, active X2))
(active# afterNth(X1, X2) -> active# X1, active# take(X1, X2) -> active# X2)
(active# afterNth(X1, X2) -> active# X1, active# take(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X1, active# take(N, XS) -> U81#(tt(), N, XS))
(active# afterNth(X1, X2) -> active# X1, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# afterNth(X1, X2) -> active# X1, active# tail X -> tail# active X)
(active# afterNth(X1, X2) -> active# X1, active# tail X -> active# X)
(active# afterNth(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2))
(active# afterNth(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2))
(active# afterNth(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X2)
(active# afterNth(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X1, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# afterNth(X1, X2) -> active# X1, active# s X -> s# active X)
(active# afterNth(X1, X2) -> active# X1, active# s X -> active# X)
(active# afterNth(X1, X2) -> active# X1, active# natsFrom X -> natsFrom# active X)
(active# afterNth(X1, X2) -> active# X1, active# natsFrom X -> active# X)
(active# afterNth(X1, X2) -> active# X1, active# natsFrom N -> s# N)
(active# afterNth(X1, X2) -> active# X1, active# natsFrom N -> natsFrom# s N)
(active# afterNth(X1, X2) -> active# X1, active# natsFrom N -> cons#(N, natsFrom s N))
(active# afterNth(X1, X2) -> active# X1, active# fst pair(X, Y) -> U21#(tt(), X))
(active# afterNth(X1, X2) -> active# X1, active# fst X -> fst# active X)
(active# afterNth(X1, X2) -> active# X1, active# fst X -> active# X)
(active# afterNth(X1, X2) -> active# X1, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# afterNth(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# afterNth(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> active# X1)
(active# afterNth(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# afterNth(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# afterNth(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# afterNth(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> active# X1)
(active# afterNth(X1, X2) -> active# X1, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# afterNth(X1, X2) -> active# X1, active# U71(X1, X2) -> U71#(active X1, X2))
(active# afterNth(X1, X2) -> active# X1, active# U71(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X1, active# U72(X1, X2) -> U72#(active X1, X2))
(active# afterNth(X1, X2) -> active# X1, active# U72(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2))
(active# afterNth(X1, X2) -> active# X1, active# cons(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(active X1, X2))
(active# afterNth(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(X1, active X2))
(active# afterNth(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X2)
(active# afterNth(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# afterNth(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# afterNth(X1, X2) -> active# X1, active# U64(X1, X2) -> U64#(active X1, X2))
(active# afterNth(X1, X2) -> active# X1, active# U64(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# afterNth(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# afterNth(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# afterNth(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> active# X1)
(active# afterNth(X1, X2) -> active# X1, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# afterNth(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# afterNth(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> active# X1)
(active# afterNth(X1, X2) -> active# X1, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# afterNth(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# afterNth(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> active# X1)
(active# afterNth(X1, X2) -> active# X1, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# afterNth(X1, X2) -> active# X1, active# U51(X1, X2) -> U51#(active X1, X2))
(active# afterNth(X1, X2) -> active# X1, active# U51(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X1, active# U52(X1, X2) -> U52#(active X1, X2))
(active# afterNth(X1, X2) -> active# X1, active# U52(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# afterNth(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# afterNth(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X2)
(active# afterNth(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X1, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# afterNth(X1, X2) -> active# X1, active# head cons(N, XS) -> U31#(tt(), N))
(active# afterNth(X1, X2) -> active# X1, active# head X -> head# active X)
(active# afterNth(X1, X2) -> active# X1, active# head X -> active# X)
(active# afterNth(X1, X2) -> active# X1, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# afterNth(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# afterNth(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> active# X1)
(active# afterNth(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# afterNth(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# afterNth(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# afterNth(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> active# X1)
(active# afterNth(X1, X2) -> active# X1, active# U31(tt(), N) -> U32#(tt(), N))
(active# afterNth(X1, X2) -> active# X1, active# U31(X1, X2) -> U31#(active X1, X2))
(active# afterNth(X1, X2) -> active# X1, active# U31(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X1, active# U32(X1, X2) -> U32#(active X1, X2))
(active# afterNth(X1, X2) -> active# X1, active# U32(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X1, active# U21(tt(), X) -> U22#(tt(), X))
(active# afterNth(X1, X2) -> active# X1, active# U21(X1, X2) -> U21#(active X1, X2))
(active# afterNth(X1, X2) -> active# X1, active# U21(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X1, active# U22(X1, X2) -> U22#(active X1, X2))
(active# afterNth(X1, X2) -> active# X1, active# U22(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X1, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# afterNth(X1, X2) -> active# X1, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# afterNth(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# afterNth(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# afterNth(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X2)
(active# afterNth(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X1, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# afterNth(X1, X2) -> active# X1, active# snd X -> snd# active X)
(active# afterNth(X1, X2) -> active# X1, active# snd X -> active# X)
(active# afterNth(X1, X2) -> active# X1, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# afterNth(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# afterNth(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> active# X1)
(active# afterNth(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# afterNth(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# afterNth(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> active# X1)
(active# afterNth(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# U51(X1, X2) -> active# X1, active# take(X1, X2) -> take#(active X1, X2))
(active# U51(X1, X2) -> active# X1, active# take(X1, X2) -> take#(X1, active X2))
(active# U51(X1, X2) -> active# X1, active# take(X1, X2) -> active# X2)
(active# U51(X1, X2) -> active# X1, active# take(X1, X2) -> active# X1)
(active# U51(X1, X2) -> active# X1, active# take(N, XS) -> U81#(tt(), N, XS))
(active# U51(X1, X2) -> active# X1, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# U51(X1, X2) -> active# X1, active# tail X -> tail# active X)
(active# U51(X1, X2) -> active# X1, active# tail X -> active# X)
(active# U51(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2))
(active# U51(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2))
(active# U51(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X2)
(active# U51(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X1)
(active# U51(X1, X2) -> active# X1, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# U51(X1, X2) -> active# X1, active# s X -> s# active X)
(active# U51(X1, X2) -> active# X1, active# s X -> active# X)
(active# U51(X1, X2) -> active# X1, active# natsFrom X -> natsFrom# active X)
(active# U51(X1, X2) -> active# X1, active# natsFrom X -> active# X)
(active# U51(X1, X2) -> active# X1, active# natsFrom N -> s# N)
(active# U51(X1, X2) -> active# X1, active# natsFrom N -> natsFrom# s N)
(active# U51(X1, X2) -> active# X1, active# natsFrom N -> cons#(N, natsFrom s N))
(active# U51(X1, X2) -> active# X1, active# fst pair(X, Y) -> U21#(tt(), X))
(active# U51(X1, X2) -> active# X1, active# fst X -> fst# active X)
(active# U51(X1, X2) -> active# X1, active# fst X -> active# X)
(active# U51(X1, X2) -> active# X1, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# U51(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# U51(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> active# X1)
(active# U51(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# U51(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# U51(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# U51(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> active# X1)
(active# U51(X1, X2) -> active# X1, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# U51(X1, X2) -> active# X1, active# U71(X1, X2) -> U71#(active X1, X2))
(active# U51(X1, X2) -> active# X1, active# U71(X1, X2) -> active# X1)
(active# U51(X1, X2) -> active# X1, active# U72(X1, X2) -> U72#(active X1, X2))
(active# U51(X1, X2) -> active# X1, active# U72(X1, X2) -> active# X1)
(active# U51(X1, X2) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2))
(active# U51(X1, X2) -> active# X1, active# cons(X1, X2) -> active# X1)
(active# U51(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(active X1, X2))
(active# U51(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(X1, active X2))
(active# U51(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X2)
(active# U51(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X1)
(active# U51(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# U51(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# U51(X1, X2) -> active# X1, active# U64(X1, X2) -> U64#(active X1, X2))
(active# U51(X1, X2) -> active# X1, active# U64(X1, X2) -> active# X1)
(active# U51(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# U51(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# U51(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# U51(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> active# X1)
(active# U51(X1, X2) -> active# X1, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# U51(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# U51(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> active# X1)
(active# U51(X1, X2) -> active# X1, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# U51(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# U51(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> active# X1)
(active# U51(X1, X2) -> active# X1, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# U51(X1, X2) -> active# X1, active# U51(X1, X2) -> U51#(active X1, X2))
(active# U51(X1, X2) -> active# X1, active# U51(X1, X2) -> active# X1)
(active# U51(X1, X2) -> active# X1, active# U52(X1, X2) -> U52#(active X1, X2))
(active# U51(X1, X2) -> active# X1, active# U52(X1, X2) -> active# X1)
(active# U51(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# U51(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# U51(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X2)
(active# U51(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X1)
(active# U51(X1, X2) -> active# X1, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# U51(X1, X2) -> active# X1, active# head cons(N, XS) -> U31#(tt(), N))
(active# U51(X1, X2) -> active# X1, active# head X -> head# active X)
(active# U51(X1, X2) -> active# X1, active# head X -> active# X)
(active# U51(X1, X2) -> active# X1, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# U51(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# U51(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> active# X1)
(active# U51(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# U51(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# U51(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# U51(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> active# X1)
(active# U51(X1, X2) -> active# X1, active# U31(tt(), N) -> U32#(tt(), N))
(active# U51(X1, X2) -> active# X1, active# U31(X1, X2) -> U31#(active X1, X2))
(active# U51(X1, X2) -> active# X1, active# U31(X1, X2) -> active# X1)
(active# U51(X1, X2) -> active# X1, active# U32(X1, X2) -> U32#(active X1, X2))
(active# U51(X1, X2) -> active# X1, active# U32(X1, X2) -> active# X1)
(active# U51(X1, X2) -> active# X1, active# U21(tt(), X) -> U22#(tt(), X))
(active# U51(X1, X2) -> active# X1, active# U21(X1, X2) -> U21#(active X1, X2))
(active# U51(X1, X2) -> active# X1, active# U21(X1, X2) -> active# X1)
(active# U51(X1, X2) -> active# X1, active# U22(X1, X2) -> U22#(active X1, X2))
(active# U51(X1, X2) -> active# X1, active# U22(X1, X2) -> active# X1)
(active# U51(X1, X2) -> active# X1, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# U51(X1, X2) -> active# X1, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# U51(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# U51(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# U51(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X2)
(active# U51(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X1)
(active# U51(X1, X2) -> active# X1, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# U51(X1, X2) -> active# X1, active# snd X -> snd# active X)
(active# U51(X1, X2) -> active# X1, active# snd X -> active# X)
(active# U51(X1, X2) -> active# X1, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# U51(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# U51(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> active# X1)
(active# U51(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# U51(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# U51(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> active# X1)
(active# U51(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# U61(X1, X2, X3, X4) -> active# X1, active# take(X1, X2) -> take#(active X1, X2))
(active# U61(X1, X2, X3, X4) -> active# X1, active# take(X1, X2) -> take#(X1, active X2))
(active# U61(X1, X2, X3, X4) -> active# X1, active# take(X1, X2) -> active# X2)
(active# U61(X1, X2, X3, X4) -> active# X1, active# take(X1, X2) -> active# X1)
(active# U61(X1, X2, X3, X4) -> active# X1, active# take(N, XS) -> U81#(tt(), N, XS))
(active# U61(X1, X2, X3, X4) -> active# X1, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# U61(X1, X2, X3, X4) -> active# X1, active# tail X -> tail# active X)
(active# U61(X1, X2, X3, X4) -> active# X1, active# tail X -> active# X)
(active# U61(X1, X2, X3, X4) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2))
(active# U61(X1, X2, X3, X4) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2))
(active# U61(X1, X2, X3, X4) -> active# X1, active# sel(X1, X2) -> active# X2)
(active# U61(X1, X2, X3, X4) -> active# X1, active# sel(X1, X2) -> active# X1)
(active# U61(X1, X2, X3, X4) -> active# X1, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# U61(X1, X2, X3, X4) -> active# X1, active# s X -> s# active X)
(active# U61(X1, X2, X3, X4) -> active# X1, active# s X -> active# X)
(active# U61(X1, X2, X3, X4) -> active# X1, active# natsFrom X -> natsFrom# active X)
(active# U61(X1, X2, X3, X4) -> active# X1, active# natsFrom X -> active# X)
(active# U61(X1, X2, X3, X4) -> active# X1, active# natsFrom N -> s# N)
(active# U61(X1, X2, X3, X4) -> active# X1, active# natsFrom N -> natsFrom# s N)
(active# U61(X1, X2, X3, X4) -> active# X1, active# natsFrom N -> cons#(N, natsFrom s N))
(active# U61(X1, X2, X3, X4) -> active# X1, active# fst pair(X, Y) -> U21#(tt(), X))
(active# U61(X1, X2, X3, X4) -> active# X1, active# fst X -> fst# active X)
(active# U61(X1, X2, X3, X4) -> active# X1, active# fst X -> active# X)
(active# U61(X1, X2, X3, X4) -> active# X1, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U81(X1, X2, X3) -> active# X1)
(active# U61(X1, X2, X3, X4) -> active# X1, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U82(X1, X2, X3) -> active# X1)
(active# U61(X1, X2, X3, X4) -> active# X1, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U71(X1, X2) -> U71#(active X1, X2))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U71(X1, X2) -> active# X1)
(active# U61(X1, X2, X3, X4) -> active# X1, active# U72(X1, X2) -> U72#(active X1, X2))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U72(X1, X2) -> active# X1)
(active# U61(X1, X2, X3, X4) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2))
(active# U61(X1, X2, X3, X4) -> active# X1, active# cons(X1, X2) -> active# X1)
(active# U61(X1, X2, X3, X4) -> active# X1, active# pair(X1, X2) -> pair#(active X1, X2))
(active# U61(X1, X2, X3, X4) -> active# X1, active# pair(X1, X2) -> pair#(X1, active X2))
(active# U61(X1, X2, X3, X4) -> active# X1, active# pair(X1, X2) -> active# X2)
(active# U61(X1, X2, X3, X4) -> active# X1, active# pair(X1, X2) -> active# X1)
(active# U61(X1, X2, X3, X4) -> active# X1, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U64(X1, X2) -> U64#(active X1, X2))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U64(X1, X2) -> active# X1)
(active# U61(X1, X2, X3, X4) -> active# X1, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U63(X1, X2, X3, X4) -> active# X1)
(active# U61(X1, X2, X3, X4) -> active# X1, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U61(X1, X2, X3, X4) -> active# X1)
(active# U61(X1, X2, X3, X4) -> active# X1, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U62(X1, X2, X3, X4) -> active# X1)
(active# U61(X1, X2, X3, X4) -> active# X1, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U51(X1, X2) -> U51#(active X1, X2))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U51(X1, X2) -> active# X1)
(active# U61(X1, X2, X3, X4) -> active# X1, active# U52(X1, X2) -> U52#(active X1, X2))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U52(X1, X2) -> active# X1)
(active# U61(X1, X2, X3, X4) -> active# X1, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# U61(X1, X2, X3, X4) -> active# X1, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# U61(X1, X2, X3, X4) -> active# X1, active# afterNth(X1, X2) -> active# X2)
(active# U61(X1, X2, X3, X4) -> active# X1, active# afterNth(X1, X2) -> active# X1)
(active# U61(X1, X2, X3, X4) -> active# X1, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# U61(X1, X2, X3, X4) -> active# X1, active# head cons(N, XS) -> U31#(tt(), N))
(active# U61(X1, X2, X3, X4) -> active# X1, active# head X -> head# active X)
(active# U61(X1, X2, X3, X4) -> active# X1, active# head X -> active# X)
(active# U61(X1, X2, X3, X4) -> active# X1, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U41(X1, X2, X3) -> active# X1)
(active# U61(X1, X2, X3, X4) -> active# X1, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U42(X1, X2, X3) -> active# X1)
(active# U61(X1, X2, X3, X4) -> active# X1, active# U31(tt(), N) -> U32#(tt(), N))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U31(X1, X2) -> U31#(active X1, X2))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U31(X1, X2) -> active# X1)
(active# U61(X1, X2, X3, X4) -> active# X1, active# U32(X1, X2) -> U32#(active X1, X2))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U32(X1, X2) -> active# X1)
(active# U61(X1, X2, X3, X4) -> active# X1, active# U21(tt(), X) -> U22#(tt(), X))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U21(X1, X2) -> U21#(active X1, X2))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U21(X1, X2) -> active# X1)
(active# U61(X1, X2, X3, X4) -> active# X1, active# U22(X1, X2) -> U22#(active X1, X2))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U22(X1, X2) -> active# X1)
(active# U61(X1, X2, X3, X4) -> active# X1, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# U61(X1, X2, X3, X4) -> active# X1, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# U61(X1, X2, X3, X4) -> active# X1, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# U61(X1, X2, X3, X4) -> active# X1, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# U61(X1, X2, X3, X4) -> active# X1, active# splitAt(X1, X2) -> active# X2)
(active# U61(X1, X2, X3, X4) -> active# X1, active# splitAt(X1, X2) -> active# X1)
(active# U61(X1, X2, X3, X4) -> active# X1, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# U61(X1, X2, X3, X4) -> active# X1, active# snd X -> snd# active X)
(active# U61(X1, X2, X3, X4) -> active# X1, active# snd X -> active# X)
(active# U61(X1, X2, X3, X4) -> active# X1, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U11(X1, X2, X3) -> active# X1)
(active# U61(X1, X2, X3, X4) -> active# X1, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# U61(X1, X2, X3, X4) -> active# X1, active# U12(X1, X2, X3) -> active# X1)
(active# U61(X1, X2, X3, X4) -> active# X1, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# U64(X1, X2) -> active# X1, active# take(X1, X2) -> take#(active X1, X2))
(active# U64(X1, X2) -> active# X1, active# take(X1, X2) -> take#(X1, active X2))
(active# U64(X1, X2) -> active# X1, active# take(X1, X2) -> active# X2)
(active# U64(X1, X2) -> active# X1, active# take(X1, X2) -> active# X1)
(active# U64(X1, X2) -> active# X1, active# take(N, XS) -> U81#(tt(), N, XS))
(active# U64(X1, X2) -> active# X1, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# U64(X1, X2) -> active# X1, active# tail X -> tail# active X)
(active# U64(X1, X2) -> active# X1, active# tail X -> active# X)
(active# U64(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2))
(active# U64(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2))
(active# U64(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X2)
(active# U64(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X1)
(active# U64(X1, X2) -> active# X1, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# U64(X1, X2) -> active# X1, active# s X -> s# active X)
(active# U64(X1, X2) -> active# X1, active# s X -> active# X)
(active# U64(X1, X2) -> active# X1, active# natsFrom X -> natsFrom# active X)
(active# U64(X1, X2) -> active# X1, active# natsFrom X -> active# X)
(active# U64(X1, X2) -> active# X1, active# natsFrom N -> s# N)
(active# U64(X1, X2) -> active# X1, active# natsFrom N -> natsFrom# s N)
(active# U64(X1, X2) -> active# X1, active# natsFrom N -> cons#(N, natsFrom s N))
(active# U64(X1, X2) -> active# X1, active# fst pair(X, Y) -> U21#(tt(), X))
(active# U64(X1, X2) -> active# X1, active# fst X -> fst# active X)
(active# U64(X1, X2) -> active# X1, active# fst X -> active# X)
(active# U64(X1, X2) -> active# X1, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# U64(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# U64(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> active# X1)
(active# U64(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# U64(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# U64(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# U64(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> active# X1)
(active# U64(X1, X2) -> active# X1, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# U64(X1, X2) -> active# X1, active# U71(X1, X2) -> U71#(active X1, X2))
(active# U64(X1, X2) -> active# X1, active# U71(X1, X2) -> active# X1)
(active# U64(X1, X2) -> active# X1, active# U72(X1, X2) -> U72#(active X1, X2))
(active# U64(X1, X2) -> active# X1, active# U72(X1, X2) -> active# X1)
(active# U64(X1, X2) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2))
(active# U64(X1, X2) -> active# X1, active# cons(X1, X2) -> active# X1)
(active# U64(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(active X1, X2))
(active# U64(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(X1, active X2))
(active# U64(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X2)
(active# U64(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X1)
(active# U64(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# U64(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# U64(X1, X2) -> active# X1, active# U64(X1, X2) -> U64#(active X1, X2))
(active# U64(X1, X2) -> active# X1, active# U64(X1, X2) -> active# X1)
(active# U64(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# U64(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# U64(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# U64(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> active# X1)
(active# U64(X1, X2) -> active# X1, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# U64(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# U64(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> active# X1)
(active# U64(X1, X2) -> active# X1, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# U64(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# U64(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> active# X1)
(active# U64(X1, X2) -> active# X1, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# U64(X1, X2) -> active# X1, active# U51(X1, X2) -> U51#(active X1, X2))
(active# U64(X1, X2) -> active# X1, active# U51(X1, X2) -> active# X1)
(active# U64(X1, X2) -> active# X1, active# U52(X1, X2) -> U52#(active X1, X2))
(active# U64(X1, X2) -> active# X1, active# U52(X1, X2) -> active# X1)
(active# U64(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# U64(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# U64(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X2)
(active# U64(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X1)
(active# U64(X1, X2) -> active# X1, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# U64(X1, X2) -> active# X1, active# head cons(N, XS) -> U31#(tt(), N))
(active# U64(X1, X2) -> active# X1, active# head X -> head# active X)
(active# U64(X1, X2) -> active# X1, active# head X -> active# X)
(active# U64(X1, X2) -> active# X1, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# U64(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# U64(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> active# X1)
(active# U64(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# U64(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# U64(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# U64(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> active# X1)
(active# U64(X1, X2) -> active# X1, active# U31(tt(), N) -> U32#(tt(), N))
(active# U64(X1, X2) -> active# X1, active# U31(X1, X2) -> U31#(active X1, X2))
(active# U64(X1, X2) -> active# X1, active# U31(X1, X2) -> active# X1)
(active# U64(X1, X2) -> active# X1, active# U32(X1, X2) -> U32#(active X1, X2))
(active# U64(X1, X2) -> active# X1, active# U32(X1, X2) -> active# X1)
(active# U64(X1, X2) -> active# X1, active# U21(tt(), X) -> U22#(tt(), X))
(active# U64(X1, X2) -> active# X1, active# U21(X1, X2) -> U21#(active X1, X2))
(active# U64(X1, X2) -> active# X1, active# U21(X1, X2) -> active# X1)
(active# U64(X1, X2) -> active# X1, active# U22(X1, X2) -> U22#(active X1, X2))
(active# U64(X1, X2) -> active# X1, active# U22(X1, X2) -> active# X1)
(active# U64(X1, X2) -> active# X1, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# U64(X1, X2) -> active# X1, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# U64(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# U64(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# U64(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X2)
(active# U64(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X1)
(active# U64(X1, X2) -> active# X1, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# U64(X1, X2) -> active# X1, active# snd X -> snd# active X)
(active# U64(X1, X2) -> active# X1, active# snd X -> active# X)
(active# U64(X1, X2) -> active# X1, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# U64(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# U64(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> active# X1)
(active# U64(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# U64(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# U64(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> active# X1)
(active# U64(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# cons(X1, X2) -> active# X1, active# take(X1, X2) -> take#(active X1, X2))
(active# cons(X1, X2) -> active# X1, active# take(X1, X2) -> take#(X1, active X2))
(active# cons(X1, X2) -> active# X1, active# take(X1, X2) -> active# X2)
(active# cons(X1, X2) -> active# X1, active# take(X1, X2) -> active# X1)
(active# cons(X1, X2) -> active# X1, active# take(N, XS) -> U81#(tt(), N, XS))
(active# cons(X1, X2) -> active# X1, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# cons(X1, X2) -> active# X1, active# tail X -> tail# active X)
(active# cons(X1, X2) -> active# X1, active# tail X -> active# X)
(active# cons(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2))
(active# cons(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2))
(active# cons(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X2)
(active# cons(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X1)
(active# cons(X1, X2) -> active# X1, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# cons(X1, X2) -> active# X1, active# s X -> s# active X)
(active# cons(X1, X2) -> active# X1, active# s X -> active# X)
(active# cons(X1, X2) -> active# X1, active# natsFrom X -> natsFrom# active X)
(active# cons(X1, X2) -> active# X1, active# natsFrom X -> active# X)
(active# cons(X1, X2) -> active# X1, active# natsFrom N -> s# N)
(active# cons(X1, X2) -> active# X1, active# natsFrom N -> natsFrom# s N)
(active# cons(X1, X2) -> active# X1, active# natsFrom N -> cons#(N, natsFrom s N))
(active# cons(X1, X2) -> active# X1, active# fst pair(X, Y) -> U21#(tt(), X))
(active# cons(X1, X2) -> active# X1, active# fst X -> fst# active X)
(active# cons(X1, X2) -> active# X1, active# fst X -> active# X)
(active# cons(X1, X2) -> active# X1, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# cons(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# cons(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> active# X1)
(active# cons(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# cons(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# cons(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# cons(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> active# X1)
(active# cons(X1, X2) -> active# X1, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# cons(X1, X2) -> active# X1, active# U71(X1, X2) -> U71#(active X1, X2))
(active# cons(X1, X2) -> active# X1, active# U71(X1, X2) -> active# X1)
(active# cons(X1, X2) -> active# X1, active# U72(X1, X2) -> U72#(active X1, X2))
(active# cons(X1, X2) -> active# X1, active# U72(X1, X2) -> active# X1)
(active# cons(X1, X2) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2))
(active# cons(X1, X2) -> active# X1, active# cons(X1, X2) -> active# X1)
(active# cons(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(active X1, X2))
(active# cons(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(X1, active X2))
(active# cons(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X2)
(active# cons(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X1)
(active# cons(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# cons(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# cons(X1, X2) -> active# X1, active# U64(X1, X2) -> U64#(active X1, X2))
(active# cons(X1, X2) -> active# X1, active# U64(X1, X2) -> active# X1)
(active# cons(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# cons(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# cons(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# cons(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> active# X1)
(active# cons(X1, X2) -> active# X1, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# cons(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# cons(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> active# X1)
(active# cons(X1, X2) -> active# X1, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# cons(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# cons(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> active# X1)
(active# cons(X1, X2) -> active# X1, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# cons(X1, X2) -> active# X1, active# U51(X1, X2) -> U51#(active X1, X2))
(active# cons(X1, X2) -> active# X1, active# U51(X1, X2) -> active# X1)
(active# cons(X1, X2) -> active# X1, active# U52(X1, X2) -> U52#(active X1, X2))
(active# cons(X1, X2) -> active# X1, active# U52(X1, X2) -> active# X1)
(active# cons(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# cons(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# cons(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X2)
(active# cons(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X1)
(active# cons(X1, X2) -> active# X1, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# cons(X1, X2) -> active# X1, active# head cons(N, XS) -> U31#(tt(), N))
(active# cons(X1, X2) -> active# X1, active# head X -> head# active X)
(active# cons(X1, X2) -> active# X1, active# head X -> active# X)
(active# cons(X1, X2) -> active# X1, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# cons(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# cons(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> active# X1)
(active# cons(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# cons(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# cons(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# cons(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> active# X1)
(active# cons(X1, X2) -> active# X1, active# U31(tt(), N) -> U32#(tt(), N))
(active# cons(X1, X2) -> active# X1, active# U31(X1, X2) -> U31#(active X1, X2))
(active# cons(X1, X2) -> active# X1, active# U31(X1, X2) -> active# X1)
(active# cons(X1, X2) -> active# X1, active# U32(X1, X2) -> U32#(active X1, X2))
(active# cons(X1, X2) -> active# X1, active# U32(X1, X2) -> active# X1)
(active# cons(X1, X2) -> active# X1, active# U21(tt(), X) -> U22#(tt(), X))
(active# cons(X1, X2) -> active# X1, active# U21(X1, X2) -> U21#(active X1, X2))
(active# cons(X1, X2) -> active# X1, active# U21(X1, X2) -> active# X1)
(active# cons(X1, X2) -> active# X1, active# U22(X1, X2) -> U22#(active X1, X2))
(active# cons(X1, X2) -> active# X1, active# U22(X1, X2) -> active# X1)
(active# cons(X1, X2) -> active# X1, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# cons(X1, X2) -> active# X1, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# cons(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# cons(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# cons(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X2)
(active# cons(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X1)
(active# cons(X1, X2) -> active# X1, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# cons(X1, X2) -> active# X1, active# snd X -> snd# active X)
(active# cons(X1, X2) -> active# X1, active# snd X -> active# X)
(active# cons(X1, X2) -> active# X1, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# cons(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# cons(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> active# X1)
(active# cons(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# cons(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# cons(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> active# X1)
(active# cons(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# U71(X1, X2) -> active# X1, active# take(X1, X2) -> take#(active X1, X2))
(active# U71(X1, X2) -> active# X1, active# take(X1, X2) -> take#(X1, active X2))
(active# U71(X1, X2) -> active# X1, active# take(X1, X2) -> active# X2)
(active# U71(X1, X2) -> active# X1, active# take(X1, X2) -> active# X1)
(active# U71(X1, X2) -> active# X1, active# take(N, XS) -> U81#(tt(), N, XS))
(active# U71(X1, X2) -> active# X1, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# U71(X1, X2) -> active# X1, active# tail X -> tail# active X)
(active# U71(X1, X2) -> active# X1, active# tail X -> active# X)
(active# U71(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2))
(active# U71(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2))
(active# U71(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X2)
(active# U71(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X1)
(active# U71(X1, X2) -> active# X1, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# U71(X1, X2) -> active# X1, active# s X -> s# active X)
(active# U71(X1, X2) -> active# X1, active# s X -> active# X)
(active# U71(X1, X2) -> active# X1, active# natsFrom X -> natsFrom# active X)
(active# U71(X1, X2) -> active# X1, active# natsFrom X -> active# X)
(active# U71(X1, X2) -> active# X1, active# natsFrom N -> s# N)
(active# U71(X1, X2) -> active# X1, active# natsFrom N -> natsFrom# s N)
(active# U71(X1, X2) -> active# X1, active# natsFrom N -> cons#(N, natsFrom s N))
(active# U71(X1, X2) -> active# X1, active# fst pair(X, Y) -> U21#(tt(), X))
(active# U71(X1, X2) -> active# X1, active# fst X -> fst# active X)
(active# U71(X1, X2) -> active# X1, active# fst X -> active# X)
(active# U71(X1, X2) -> active# X1, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# U71(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# U71(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> active# X1)
(active# U71(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# U71(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# U71(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# U71(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> active# X1)
(active# U71(X1, X2) -> active# X1, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# U71(X1, X2) -> active# X1, active# U71(X1, X2) -> U71#(active X1, X2))
(active# U71(X1, X2) -> active# X1, active# U71(X1, X2) -> active# X1)
(active# U71(X1, X2) -> active# X1, active# U72(X1, X2) -> U72#(active X1, X2))
(active# U71(X1, X2) -> active# X1, active# U72(X1, X2) -> active# X1)
(active# U71(X1, X2) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2))
(active# U71(X1, X2) -> active# X1, active# cons(X1, X2) -> active# X1)
(active# U71(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(active X1, X2))
(active# U71(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(X1, active X2))
(active# U71(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X2)
(active# U71(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X1)
(active# U71(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# U71(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# U71(X1, X2) -> active# X1, active# U64(X1, X2) -> U64#(active X1, X2))
(active# U71(X1, X2) -> active# X1, active# U64(X1, X2) -> active# X1)
(active# U71(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# U71(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# U71(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# U71(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> active# X1)
(active# U71(X1, X2) -> active# X1, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# U71(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# U71(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> active# X1)
(active# U71(X1, X2) -> active# X1, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# U71(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# U71(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> active# X1)
(active# U71(X1, X2) -> active# X1, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# U71(X1, X2) -> active# X1, active# U51(X1, X2) -> U51#(active X1, X2))
(active# U71(X1, X2) -> active# X1, active# U51(X1, X2) -> active# X1)
(active# U71(X1, X2) -> active# X1, active# U52(X1, X2) -> U52#(active X1, X2))
(active# U71(X1, X2) -> active# X1, active# U52(X1, X2) -> active# X1)
(active# U71(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# U71(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# U71(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X2)
(active# U71(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X1)
(active# U71(X1, X2) -> active# X1, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# U71(X1, X2) -> active# X1, active# head cons(N, XS) -> U31#(tt(), N))
(active# U71(X1, X2) -> active# X1, active# head X -> head# active X)
(active# U71(X1, X2) -> active# X1, active# head X -> active# X)
(active# U71(X1, X2) -> active# X1, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# U71(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# U71(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> active# X1)
(active# U71(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# U71(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# U71(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# U71(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> active# X1)
(active# U71(X1, X2) -> active# X1, active# U31(tt(), N) -> U32#(tt(), N))
(active# U71(X1, X2) -> active# X1, active# U31(X1, X2) -> U31#(active X1, X2))
(active# U71(X1, X2) -> active# X1, active# U31(X1, X2) -> active# X1)
(active# U71(X1, X2) -> active# X1, active# U32(X1, X2) -> U32#(active X1, X2))
(active# U71(X1, X2) -> active# X1, active# U32(X1, X2) -> active# X1)
(active# U71(X1, X2) -> active# X1, active# U21(tt(), X) -> U22#(tt(), X))
(active# U71(X1, X2) -> active# X1, active# U21(X1, X2) -> U21#(active X1, X2))
(active# U71(X1, X2) -> active# X1, active# U21(X1, X2) -> active# X1)
(active# U71(X1, X2) -> active# X1, active# U22(X1, X2) -> U22#(active X1, X2))
(active# U71(X1, X2) -> active# X1, active# U22(X1, X2) -> active# X1)
(active# U71(X1, X2) -> active# X1, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# U71(X1, X2) -> active# X1, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# U71(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# U71(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# U71(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X2)
(active# U71(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X1)
(active# U71(X1, X2) -> active# X1, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# U71(X1, X2) -> active# X1, active# snd X -> snd# active X)
(active# U71(X1, X2) -> active# X1, active# snd X -> active# X)
(active# U71(X1, X2) -> active# X1, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# U71(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# U71(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> active# X1)
(active# U71(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# U71(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# U71(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> active# X1)
(active# U71(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# U81(X1, X2, X3) -> active# X1, active# take(X1, X2) -> take#(active X1, X2))
(active# U81(X1, X2, X3) -> active# X1, active# take(X1, X2) -> take#(X1, active X2))
(active# U81(X1, X2, X3) -> active# X1, active# take(X1, X2) -> active# X2)
(active# U81(X1, X2, X3) -> active# X1, active# take(X1, X2) -> active# X1)
(active# U81(X1, X2, X3) -> active# X1, active# take(N, XS) -> U81#(tt(), N, XS))
(active# U81(X1, X2, X3) -> active# X1, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# U81(X1, X2, X3) -> active# X1, active# tail X -> tail# active X)
(active# U81(X1, X2, X3) -> active# X1, active# tail X -> active# X)
(active# U81(X1, X2, X3) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2))
(active# U81(X1, X2, X3) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2))
(active# U81(X1, X2, X3) -> active# X1, active# sel(X1, X2) -> active# X2)
(active# U81(X1, X2, X3) -> active# X1, active# sel(X1, X2) -> active# X1)
(active# U81(X1, X2, X3) -> active# X1, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# U81(X1, X2, X3) -> active# X1, active# s X -> s# active X)
(active# U81(X1, X2, X3) -> active# X1, active# s X -> active# X)
(active# U81(X1, X2, X3) -> active# X1, active# natsFrom X -> natsFrom# active X)
(active# U81(X1, X2, X3) -> active# X1, active# natsFrom X -> active# X)
(active# U81(X1, X2, X3) -> active# X1, active# natsFrom N -> s# N)
(active# U81(X1, X2, X3) -> active# X1, active# natsFrom N -> natsFrom# s N)
(active# U81(X1, X2, X3) -> active# X1, active# natsFrom N -> cons#(N, natsFrom s N))
(active# U81(X1, X2, X3) -> active# X1, active# fst pair(X, Y) -> U21#(tt(), X))
(active# U81(X1, X2, X3) -> active# X1, active# fst X -> fst# active X)
(active# U81(X1, X2, X3) -> active# X1, active# fst X -> active# X)
(active# U81(X1, X2, X3) -> active# X1, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# U81(X1, X2, X3) -> active# X1, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# U81(X1, X2, X3) -> active# X1, active# U81(X1, X2, X3) -> active# X1)
(active# U81(X1, X2, X3) -> active# X1, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# U81(X1, X2, X3) -> active# X1, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# U81(X1, X2, X3) -> active# X1, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# U81(X1, X2, X3) -> active# X1, active# U82(X1, X2, X3) -> active# X1)
(active# U81(X1, X2, X3) -> active# X1, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# U81(X1, X2, X3) -> active# X1, active# U71(X1, X2) -> U71#(active X1, X2))
(active# U81(X1, X2, X3) -> active# X1, active# U71(X1, X2) -> active# X1)
(active# U81(X1, X2, X3) -> active# X1, active# U72(X1, X2) -> U72#(active X1, X2))
(active# U81(X1, X2, X3) -> active# X1, active# U72(X1, X2) -> active# X1)
(active# U81(X1, X2, X3) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2))
(active# U81(X1, X2, X3) -> active# X1, active# cons(X1, X2) -> active# X1)
(active# U81(X1, X2, X3) -> active# X1, active# pair(X1, X2) -> pair#(active X1, X2))
(active# U81(X1, X2, X3) -> active# X1, active# pair(X1, X2) -> pair#(X1, active X2))
(active# U81(X1, X2, X3) -> active# X1, active# pair(X1, X2) -> active# X2)
(active# U81(X1, X2, X3) -> active# X1, active# pair(X1, X2) -> active# X1)
(active# U81(X1, X2, X3) -> active# X1, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# U81(X1, X2, X3) -> active# X1, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# U81(X1, X2, X3) -> active# X1, active# U64(X1, X2) -> U64#(active X1, X2))
(active# U81(X1, X2, X3) -> active# X1, active# U64(X1, X2) -> active# X1)
(active# U81(X1, X2, X3) -> active# X1, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# U81(X1, X2, X3) -> active# X1, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# U81(X1, X2, X3) -> active# X1, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# U81(X1, X2, X3) -> active# X1, active# U63(X1, X2, X3, X4) -> active# X1)
(active# U81(X1, X2, X3) -> active# X1, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# U81(X1, X2, X3) -> active# X1, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# U81(X1, X2, X3) -> active# X1, active# U61(X1, X2, X3, X4) -> active# X1)
(active# U81(X1, X2, X3) -> active# X1, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# U81(X1, X2, X3) -> active# X1, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# U81(X1, X2, X3) -> active# X1, active# U62(X1, X2, X3, X4) -> active# X1)
(active# U81(X1, X2, X3) -> active# X1, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# U81(X1, X2, X3) -> active# X1, active# U51(X1, X2) -> U51#(active X1, X2))
(active# U81(X1, X2, X3) -> active# X1, active# U51(X1, X2) -> active# X1)
(active# U81(X1, X2, X3) -> active# X1, active# U52(X1, X2) -> U52#(active X1, X2))
(active# U81(X1, X2, X3) -> active# X1, active# U52(X1, X2) -> active# X1)
(active# U81(X1, X2, X3) -> active# X1, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# U81(X1, X2, X3) -> active# X1, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# U81(X1, X2, X3) -> active# X1, active# afterNth(X1, X2) -> active# X2)
(active# U81(X1, X2, X3) -> active# X1, active# afterNth(X1, X2) -> active# X1)
(active# U81(X1, X2, X3) -> active# X1, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# U81(X1, X2, X3) -> active# X1, active# head cons(N, XS) -> U31#(tt(), N))
(active# U81(X1, X2, X3) -> active# X1, active# head X -> head# active X)
(active# U81(X1, X2, X3) -> active# X1, active# head X -> active# X)
(active# U81(X1, X2, X3) -> active# X1, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# U81(X1, X2, X3) -> active# X1, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# U81(X1, X2, X3) -> active# X1, active# U41(X1, X2, X3) -> active# X1)
(active# U81(X1, X2, X3) -> active# X1, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# U81(X1, X2, X3) -> active# X1, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# U81(X1, X2, X3) -> active# X1, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# U81(X1, X2, X3) -> active# X1, active# U42(X1, X2, X3) -> active# X1)
(active# U81(X1, X2, X3) -> active# X1, active# U31(tt(), N) -> U32#(tt(), N))
(active# U81(X1, X2, X3) -> active# X1, active# U31(X1, X2) -> U31#(active X1, X2))
(active# U81(X1, X2, X3) -> active# X1, active# U31(X1, X2) -> active# X1)
(active# U81(X1, X2, X3) -> active# X1, active# U32(X1, X2) -> U32#(active X1, X2))
(active# U81(X1, X2, X3) -> active# X1, active# U32(X1, X2) -> active# X1)
(active# U81(X1, X2, X3) -> active# X1, active# U21(tt(), X) -> U22#(tt(), X))
(active# U81(X1, X2, X3) -> active# X1, active# U21(X1, X2) -> U21#(active X1, X2))
(active# U81(X1, X2, X3) -> active# X1, active# U21(X1, X2) -> active# X1)
(active# U81(X1, X2, X3) -> active# X1, active# U22(X1, X2) -> U22#(active X1, X2))
(active# U81(X1, X2, X3) -> active# X1, active# U22(X1, X2) -> active# X1)
(active# U81(X1, X2, X3) -> active# X1, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# U81(X1, X2, X3) -> active# X1, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# U81(X1, X2, X3) -> active# X1, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# U81(X1, X2, X3) -> active# X1, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# U81(X1, X2, X3) -> active# X1, active# splitAt(X1, X2) -> active# X2)
(active# U81(X1, X2, X3) -> active# X1, active# splitAt(X1, X2) -> active# X1)
(active# U81(X1, X2, X3) -> active# X1, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# U81(X1, X2, X3) -> active# X1, active# snd X -> snd# active X)
(active# U81(X1, X2, X3) -> active# X1, active# snd X -> active# X)
(active# U81(X1, X2, X3) -> active# X1, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# U81(X1, X2, X3) -> active# X1, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# U81(X1, X2, X3) -> active# X1, active# U11(X1, X2, X3) -> active# X1)
(active# U81(X1, X2, X3) -> active# X1, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# U81(X1, X2, X3) -> active# X1, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# U81(X1, X2, X3) -> active# X1, active# U12(X1, X2, X3) -> active# X1)
(active# U81(X1, X2, X3) -> active# X1, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# take(X1, X2) -> active# X1, active# take(X1, X2) -> take#(active X1, X2))
(active# take(X1, X2) -> active# X1, active# take(X1, X2) -> take#(X1, active X2))
(active# take(X1, X2) -> active# X1, active# take(X1, X2) -> active# X2)
(active# take(X1, X2) -> active# X1, active# take(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X1, active# take(N, XS) -> U81#(tt(), N, XS))
(active# take(X1, X2) -> active# X1, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# take(X1, X2) -> active# X1, active# tail X -> tail# active X)
(active# take(X1, X2) -> active# X1, active# tail X -> active# X)
(active# take(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2))
(active# take(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2))
(active# take(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X2)
(active# take(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X1, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# take(X1, X2) -> active# X1, active# s X -> s# active X)
(active# take(X1, X2) -> active# X1, active# s X -> active# X)
(active# take(X1, X2) -> active# X1, active# natsFrom X -> natsFrom# active X)
(active# take(X1, X2) -> active# X1, active# natsFrom X -> active# X)
(active# take(X1, X2) -> active# X1, active# natsFrom N -> s# N)
(active# take(X1, X2) -> active# X1, active# natsFrom N -> natsFrom# s N)
(active# take(X1, X2) -> active# X1, active# natsFrom N -> cons#(N, natsFrom s N))
(active# take(X1, X2) -> active# X1, active# fst pair(X, Y) -> U21#(tt(), X))
(active# take(X1, X2) -> active# X1, active# fst X -> fst# active X)
(active# take(X1, X2) -> active# X1, active# fst X -> active# X)
(active# take(X1, X2) -> active# X1, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# take(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# take(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> active# X1)
(active# take(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# take(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# take(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# take(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> active# X1)
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(active# take(X1, X2) -> active# X1, active# U71(X1, X2) -> U71#(active X1, X2))
(active# take(X1, X2) -> active# X1, active# U71(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X1, active# U72(X1, X2) -> U72#(active X1, X2))
(active# take(X1, X2) -> active# X1, active# U72(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2))
(active# take(X1, X2) -> active# X1, active# cons(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(active X1, X2))
(active# take(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(X1, active X2))
(active# take(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X2)
(active# take(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# take(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# take(X1, X2) -> active# X1, active# U64(X1, X2) -> U64#(active X1, X2))
(active# take(X1, X2) -> active# X1, active# U64(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# take(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# take(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# take(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> active# X1)
(active# take(X1, X2) -> active# X1, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# take(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# take(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> active# X1)
(active# take(X1, X2) -> active# X1, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# take(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# take(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> active# X1)
(active# take(X1, X2) -> active# X1, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# take(X1, X2) -> active# X1, active# U51(X1, X2) -> U51#(active X1, X2))
(active# take(X1, X2) -> active# X1, active# U51(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X1, active# U52(X1, X2) -> U52#(active X1, X2))
(active# take(X1, X2) -> active# X1, active# U52(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# take(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# take(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X2)
(active# take(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X1, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# take(X1, X2) -> active# X1, active# head cons(N, XS) -> U31#(tt(), N))
(active# take(X1, X2) -> active# X1, active# head X -> head# active X)
(active# take(X1, X2) -> active# X1, active# head X -> active# X)
(active# take(X1, X2) -> active# X1, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# take(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# take(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> active# X1)
(active# take(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# take(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# take(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# take(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> active# X1)
(active# take(X1, X2) -> active# X1, active# U31(tt(), N) -> U32#(tt(), N))
(active# take(X1, X2) -> active# X1, active# U31(X1, X2) -> U31#(active X1, X2))
(active# take(X1, X2) -> active# X1, active# U31(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X1, active# U32(X1, X2) -> U32#(active X1, X2))
(active# take(X1, X2) -> active# X1, active# U32(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X1, active# U21(tt(), X) -> U22#(tt(), X))
(active# take(X1, X2) -> active# X1, active# U21(X1, X2) -> U21#(active X1, X2))
(active# take(X1, X2) -> active# X1, active# U21(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X1, active# U22(X1, X2) -> U22#(active X1, X2))
(active# take(X1, X2) -> active# X1, active# U22(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X1, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# take(X1, X2) -> active# X1, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# take(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# take(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# take(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X2)
(active# take(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X1, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# take(X1, X2) -> active# X1, active# snd X -> snd# active X)
(active# take(X1, X2) -> active# X1, active# snd X -> active# X)
(active# take(X1, X2) -> active# X1, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# take(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# take(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> active# X1)
(active# take(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# take(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# take(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> active# X1)
(active# take(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(proper# U11(X1, X2, X3) -> proper# X1, proper# take(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X1, proper# take(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X1, proper# tail X -> proper# X)
(proper# U11(X1, X2, X3) -> proper# X1, proper# tail X -> tail# proper X)
(proper# U11(X1, X2, X3) -> proper# X1, proper# sel(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X1, proper# sel(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X1, proper# s X -> proper# X)
(proper# U11(X1, X2, X3) -> proper# X1, proper# s X -> s# proper X)
(proper# U11(X1, X2, X3) -> proper# X1, proper# natsFrom X -> proper# X)
(proper# U11(X1, X2, X3) -> proper# X1, proper# natsFrom X -> natsFrom# proper X)
(proper# U11(X1, X2, X3) -> proper# X1, proper# fst X -> proper# X)
(proper# U11(X1, X2, X3) -> proper# X1, proper# fst X -> fst# proper X)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U11(X1, X2, X3) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U11(X1, X2, X3) -> proper# X1, proper# U71(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U71(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X1, proper# U72(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U72(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X1, proper# cons(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X1, proper# cons(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X1, proper# pair(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X1, proper# pair(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X1, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X1, proper# U64(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U64(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U11(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U11(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U11(X1, X2, X3) -> proper# X1, proper# U51(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U51(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X1, proper# U52(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U52(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X1, proper# afterNth(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X1, proper# afterNth(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X1, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X1, proper# head X -> proper# X)
(proper# U11(X1, X2, X3) -> proper# X1, proper# head X -> head# proper X)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U11(X1, X2, X3) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U11(X1, X2, X3) -> proper# X1, proper# U31(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U31(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X1, proper# U32(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U32(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X1, proper# U21(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U21(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X1, proper# U22(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U22(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X1, proper# splitAt(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X1, proper# splitAt(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X1, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X1, proper# snd X -> proper# X)
(proper# U11(X1, X2, X3) -> proper# X1, proper# snd X -> snd# proper X)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U11(X1, X2, X3) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X1, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U22(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X1, proper# tail X -> proper# X)
(proper# U22(X1, X2) -> proper# X1, proper# tail X -> tail# proper X)
(proper# U22(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X1, proper# s X -> proper# X)
(proper# U22(X1, X2) -> proper# X1, proper# s X -> s# proper X)
(proper# U22(X1, X2) -> proper# X1, proper# natsFrom X -> proper# X)
(proper# U22(X1, X2) -> proper# X1, proper# natsFrom X -> natsFrom# proper X)
(proper# U22(X1, X2) -> proper# X1, proper# fst X -> proper# X)
(proper# U22(X1, X2) -> proper# X1, proper# fst X -> fst# proper X)
(proper# U22(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U22(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U22(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U22(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U22(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U22(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U22(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U22(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U22(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X1, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X1, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X1, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X1, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U22(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U22(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U22(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U22(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U22(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U22(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U22(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U22(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U22(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U22(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U22(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U22(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U22(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U22(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U22(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X1, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X1, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X1, proper# head X -> proper# X)
(proper# U22(X1, X2) -> proper# X1, proper# head X -> head# proper X)
(proper# U22(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U22(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U22(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U22(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U22(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U22(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U22(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U22(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U22(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X1, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X1, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X1, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X1, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X1, proper# snd X -> proper# X)
(proper# U22(X1, X2) -> proper# X1, proper# snd X -> snd# proper X)
(proper# U22(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U22(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U22(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U22(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U22(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U22(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U22(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U22(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U32(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X1, proper# tail X -> proper# X)
(proper# U32(X1, X2) -> proper# X1, proper# tail X -> tail# proper X)
(proper# U32(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X1, proper# s X -> proper# X)
(proper# U32(X1, X2) -> proper# X1, proper# s X -> s# proper X)
(proper# U32(X1, X2) -> proper# X1, proper# natsFrom X -> proper# X)
(proper# U32(X1, X2) -> proper# X1, proper# natsFrom X -> natsFrom# proper X)
(proper# U32(X1, X2) -> proper# X1, proper# fst X -> proper# X)
(proper# U32(X1, X2) -> proper# X1, proper# fst X -> fst# proper X)
(proper# U32(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U32(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U32(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U32(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U32(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U32(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U32(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U32(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U32(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X1, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X1, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X1, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X1, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U32(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U32(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U32(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U32(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U32(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U32(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U32(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U32(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U32(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U32(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U32(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U32(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U32(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U32(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U32(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X1, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X1, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X1, proper# head X -> proper# X)
(proper# U32(X1, X2) -> proper# X1, proper# head X -> head# proper X)
(proper# U32(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U32(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U32(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U32(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U32(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U32(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U32(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U32(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U32(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X1, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X1, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X1, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X1, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X1, proper# snd X -> proper# X)
(proper# U32(X1, X2) -> proper# X1, proper# snd X -> snd# proper X)
(proper# U32(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U32(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U32(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U32(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U32(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U32(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U32(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U32(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U42(X1, X2, X3) -> proper# X1, proper# take(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X1, proper# take(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X1, proper# tail X -> proper# X)
(proper# U42(X1, X2, X3) -> proper# X1, proper# tail X -> tail# proper X)
(proper# U42(X1, X2, X3) -> proper# X1, proper# sel(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X1, proper# sel(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X1, proper# s X -> proper# X)
(proper# U42(X1, X2, X3) -> proper# X1, proper# s X -> s# proper X)
(proper# U42(X1, X2, X3) -> proper# X1, proper# natsFrom X -> proper# X)
(proper# U42(X1, X2, X3) -> proper# X1, proper# natsFrom X -> natsFrom# proper X)
(proper# U42(X1, X2, X3) -> proper# X1, proper# fst X -> proper# X)
(proper# U42(X1, X2, X3) -> proper# X1, proper# fst X -> fst# proper X)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U42(X1, X2, X3) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U42(X1, X2, X3) -> proper# X1, proper# U71(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U71(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X1, proper# U72(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U72(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X1, proper# cons(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X1, proper# cons(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X1, proper# pair(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X1, proper# pair(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X1, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X1, proper# U64(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U64(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U42(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U42(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U42(X1, X2, X3) -> proper# X1, proper# U51(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U51(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X1, proper# U52(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U52(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X1, proper# afterNth(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X1, proper# afterNth(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X1, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X1, proper# head X -> proper# X)
(proper# U42(X1, X2, X3) -> proper# X1, proper# head X -> head# proper X)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U42(X1, X2, X3) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U42(X1, X2, X3) -> proper# X1, proper# U31(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U31(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X1, proper# U32(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U32(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X1, proper# U21(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U21(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X1, proper# U22(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U22(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X1, proper# splitAt(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X1, proper# splitAt(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X1, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X1, proper# snd X -> proper# X)
(proper# U42(X1, X2, X3) -> proper# X1, proper# snd X -> snd# proper X)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U42(X1, X2, X3) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X1, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# afterNth(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X1, proper# tail X -> proper# X)
(proper# afterNth(X1, X2) -> proper# X1, proper# tail X -> tail# proper X)
(proper# afterNth(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X1, proper# s X -> proper# X)
(proper# afterNth(X1, X2) -> proper# X1, proper# s X -> s# proper X)
(proper# afterNth(X1, X2) -> proper# X1, proper# natsFrom X -> proper# X)
(proper# afterNth(X1, X2) -> proper# X1, proper# natsFrom X -> natsFrom# proper X)
(proper# afterNth(X1, X2) -> proper# X1, proper# fst X -> proper# X)
(proper# afterNth(X1, X2) -> proper# X1, proper# fst X -> fst# proper X)
(proper# afterNth(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X3)
(proper# afterNth(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# afterNth(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X3)
(proper# afterNth(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# afterNth(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X1, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X1, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X1, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X1, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# afterNth(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# afterNth(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# afterNth(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# afterNth(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# afterNth(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# afterNth(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# afterNth(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# afterNth(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# afterNth(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X1, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X1, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X1, proper# head X -> proper# X)
(proper# afterNth(X1, X2) -> proper# X1, proper# head X -> head# proper X)
(proper# afterNth(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X3)
(proper# afterNth(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# afterNth(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X3)
(proper# afterNth(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# afterNth(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X1, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X1, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X1, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X1, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X1, proper# snd X -> proper# X)
(proper# afterNth(X1, X2) -> proper# X1, proper# snd X -> snd# proper X)
(proper# afterNth(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X3)
(proper# afterNth(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# afterNth(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X3)
(proper# afterNth(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U51(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X1, proper# tail X -> proper# X)
(proper# U51(X1, X2) -> proper# X1, proper# tail X -> tail# proper X)
(proper# U51(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X1, proper# s X -> proper# X)
(proper# U51(X1, X2) -> proper# X1, proper# s X -> s# proper X)
(proper# U51(X1, X2) -> proper# X1, proper# natsFrom X -> proper# X)
(proper# U51(X1, X2) -> proper# X1, proper# natsFrom X -> natsFrom# proper X)
(proper# U51(X1, X2) -> proper# X1, proper# fst X -> proper# X)
(proper# U51(X1, X2) -> proper# X1, proper# fst X -> fst# proper X)
(proper# U51(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U51(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U51(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U51(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U51(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U51(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U51(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U51(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U51(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X1, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X1, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X1, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X1, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U51(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U51(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U51(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U51(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U51(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U51(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U51(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U51(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U51(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U51(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U51(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U51(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U51(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U51(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U51(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X1, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X1, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X1, proper# head X -> proper# X)
(proper# U51(X1, X2) -> proper# X1, proper# head X -> head# proper X)
(proper# U51(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U51(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U51(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U51(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U51(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U51(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U51(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U51(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U51(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X1, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X1, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X1, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X1, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X1, proper# snd X -> proper# X)
(proper# U51(X1, X2) -> proper# X1, proper# snd X -> snd# proper X)
(proper# U51(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U51(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U51(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U51(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U51(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U51(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U51(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U51(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# take(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# take(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# tail X -> proper# X)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# tail X -> tail# proper X)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# sel(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# sel(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# s X -> proper# X)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# s X -> s# proper X)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# natsFrom X -> proper# X)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# natsFrom X -> natsFrom# proper X)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# fst X -> proper# X)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# fst X -> fst# proper X)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U71(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U71(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U72(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U72(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# cons(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# cons(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# pair(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# pair(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U64(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U64(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U51(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U51(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U52(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U52(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# afterNth(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# afterNth(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# head X -> proper# X)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# head X -> head# proper X)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U31(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U31(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U32(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U32(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U21(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U21(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U22(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U22(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# splitAt(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# splitAt(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# snd X -> proper# X)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# snd X -> snd# proper X)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X1, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U64(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X1, proper# tail X -> proper# X)
(proper# U64(X1, X2) -> proper# X1, proper# tail X -> tail# proper X)
(proper# U64(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X1, proper# s X -> proper# X)
(proper# U64(X1, X2) -> proper# X1, proper# s X -> s# proper X)
(proper# U64(X1, X2) -> proper# X1, proper# natsFrom X -> proper# X)
(proper# U64(X1, X2) -> proper# X1, proper# natsFrom X -> natsFrom# proper X)
(proper# U64(X1, X2) -> proper# X1, proper# fst X -> proper# X)
(proper# U64(X1, X2) -> proper# X1, proper# fst X -> fst# proper X)
(proper# U64(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U64(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U64(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U64(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U64(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U64(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U64(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U64(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U64(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X1, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X1, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X1, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X1, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U64(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U64(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U64(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U64(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U64(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U64(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U64(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U64(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U64(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U64(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U64(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U64(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U64(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U64(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U64(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X1, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X1, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X1, proper# head X -> proper# X)
(proper# U64(X1, X2) -> proper# X1, proper# head X -> head# proper X)
(proper# U64(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U64(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U64(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U64(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U64(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U64(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U64(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U64(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U64(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X1, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X1, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X1, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X1, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X1, proper# snd X -> proper# X)
(proper# U64(X1, X2) -> proper# X1, proper# snd X -> snd# proper X)
(proper# U64(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U64(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U64(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U64(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U64(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U64(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U64(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U64(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# cons(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X1, proper# tail X -> proper# X)
(proper# cons(X1, X2) -> proper# X1, proper# tail X -> tail# proper X)
(proper# cons(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X1, proper# s X -> proper# X)
(proper# cons(X1, X2) -> proper# X1, proper# s X -> s# proper X)
(proper# cons(X1, X2) -> proper# X1, proper# natsFrom X -> proper# X)
(proper# cons(X1, X2) -> proper# X1, proper# natsFrom X -> natsFrom# proper X)
(proper# cons(X1, X2) -> proper# X1, proper# fst X -> proper# X)
(proper# cons(X1, X2) -> proper# X1, proper# fst X -> fst# proper X)
(proper# cons(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X3)
(proper# cons(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X2)
(proper# cons(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X1)
(proper# cons(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# cons(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X3)
(proper# cons(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X2)
(proper# cons(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X1)
(proper# cons(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# cons(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X1, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X1, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X1, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X1, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# cons(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# cons(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# cons(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# cons(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# cons(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# cons(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# cons(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# cons(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# cons(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# cons(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# cons(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# cons(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# cons(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# cons(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# cons(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X1, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X1, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X1, proper# head X -> proper# X)
(proper# cons(X1, X2) -> proper# X1, proper# head X -> head# proper X)
(proper# cons(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X3)
(proper# cons(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X2)
(proper# cons(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X1)
(proper# cons(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# cons(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X3)
(proper# cons(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X2)
(proper# cons(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X1)
(proper# cons(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# cons(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X1, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X1, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X1, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X1, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X1, proper# snd X -> proper# X)
(proper# cons(X1, X2) -> proper# X1, proper# snd X -> snd# proper X)
(proper# cons(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X3)
(proper# cons(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X2)
(proper# cons(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X1)
(proper# cons(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# cons(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X3)
(proper# cons(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X2)
(proper# cons(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X1)
(proper# cons(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U71(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X1, proper# tail X -> proper# X)
(proper# U71(X1, X2) -> proper# X1, proper# tail X -> tail# proper X)
(proper# U71(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X1, proper# s X -> proper# X)
(proper# U71(X1, X2) -> proper# X1, proper# s X -> s# proper X)
(proper# U71(X1, X2) -> proper# X1, proper# natsFrom X -> proper# X)
(proper# U71(X1, X2) -> proper# X1, proper# natsFrom X -> natsFrom# proper X)
(proper# U71(X1, X2) -> proper# X1, proper# fst X -> proper# X)
(proper# U71(X1, X2) -> proper# X1, proper# fst X -> fst# proper X)
(proper# U71(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U71(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U71(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U71(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U71(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U71(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U71(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U71(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U71(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X1, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X1, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X1, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X1, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U71(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U71(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U71(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U71(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U71(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U71(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U71(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U71(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U71(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U71(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U71(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U71(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U71(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U71(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U71(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X1, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X1, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X1, proper# head X -> proper# X)
(proper# U71(X1, X2) -> proper# X1, proper# head X -> head# proper X)
(proper# U71(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U71(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U71(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U71(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U71(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U71(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U71(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U71(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U71(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X1, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X1, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X1, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X1, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X1, proper# snd X -> proper# X)
(proper# U71(X1, X2) -> proper# X1, proper# snd X -> snd# proper X)
(proper# U71(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U71(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U71(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U71(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U71(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U71(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U71(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U71(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U81(X1, X2, X3) -> proper# X1, proper# take(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X1, proper# take(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X1, proper# tail X -> proper# X)
(proper# U81(X1, X2, X3) -> proper# X1, proper# tail X -> tail# proper X)
(proper# U81(X1, X2, X3) -> proper# X1, proper# sel(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X1, proper# sel(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X1, proper# s X -> proper# X)
(proper# U81(X1, X2, X3) -> proper# X1, proper# s X -> s# proper X)
(proper# U81(X1, X2, X3) -> proper# X1, proper# natsFrom X -> proper# X)
(proper# U81(X1, X2, X3) -> proper# X1, proper# natsFrom X -> natsFrom# proper X)
(proper# U81(X1, X2, X3) -> proper# X1, proper# fst X -> proper# X)
(proper# U81(X1, X2, X3) -> proper# X1, proper# fst X -> fst# proper X)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U81(X1, X2, X3) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U81(X1, X2, X3) -> proper# X1, proper# U71(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U71(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X1, proper# U72(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U72(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X1, proper# cons(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X1, proper# cons(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X1, proper# pair(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X1, proper# pair(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X1, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X1, proper# U64(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U64(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U81(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U81(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U81(X1, X2, X3) -> proper# X1, proper# U51(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U51(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X1, proper# U52(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U52(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X1, proper# afterNth(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X1, proper# afterNth(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X1, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X1, proper# head X -> proper# X)
(proper# U81(X1, X2, X3) -> proper# X1, proper# head X -> head# proper X)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U81(X1, X2, X3) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U81(X1, X2, X3) -> proper# X1, proper# U31(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U31(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X1, proper# U32(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U32(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X1, proper# U21(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U21(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X1, proper# U22(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U22(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X1, proper# splitAt(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X1, proper# splitAt(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X1, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X1, proper# snd X -> proper# X)
(proper# U81(X1, X2, X3) -> proper# X1, proper# snd X -> snd# proper X)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U81(X1, X2, X3) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X1, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# take(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X1, proper# tail X -> proper# X)
(proper# take(X1, X2) -> proper# X1, proper# tail X -> tail# proper X)
(proper# take(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X1, proper# s X -> proper# X)
(proper# take(X1, X2) -> proper# X1, proper# s X -> s# proper X)
(proper# take(X1, X2) -> proper# X1, proper# natsFrom X -> proper# X)
(proper# take(X1, X2) -> proper# X1, proper# natsFrom X -> natsFrom# proper X)
(proper# take(X1, X2) -> proper# X1, proper# fst X -> proper# X)
(proper# take(X1, X2) -> proper# X1, proper# fst X -> fst# proper X)
(proper# take(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X3)
(proper# take(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X2)
(proper# take(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X1)
(proper# take(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# take(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X3)
(proper# take(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X2)
(proper# take(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X1)
(proper# take(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# take(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X1, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X1, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X1, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X1, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# take(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# take(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# take(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# take(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# take(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# take(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# take(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# take(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# take(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# take(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# take(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# take(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# take(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# take(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# take(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X1, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X1, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X1, proper# head X -> proper# X)
(proper# take(X1, X2) -> proper# X1, proper# head X -> head# proper X)
(proper# take(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X3)
(proper# take(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X2)
(proper# take(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X1)
(proper# take(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# take(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X3)
(proper# take(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X2)
(proper# take(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X1)
(proper# take(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# take(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X1, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X1, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X1, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X1, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X1, proper# snd X -> proper# X)
(proper# take(X1, X2) -> proper# X1, proper# snd X -> snd# proper X)
(proper# take(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X3)
(proper# take(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X2)
(proper# take(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X1)
(proper# take(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# take(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X3)
(proper# take(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X2)
(proper# take(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X1)
(proper# take(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4), U61#(ok X1, ok X2, ok X3, ok X4) -> U61#(X1, X2, X3, X4))
(active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4), U61#(mark X1, X2, X3, X4) -> U61#(X1, X2, X3, X4))
(U62#(mark X1, X2, X3, X4) -> U62#(X1, X2, X3, X4), U62#(ok X1, ok X2, ok X3, ok X4) -> U62#(X1, X2, X3, X4))
(U62#(mark X1, X2, X3, X4) -> U62#(X1, X2, X3, X4), U62#(mark X1, X2, X3, X4) -> U62#(X1, X2, X3, X4))
(U61#(mark X1, X2, X3, X4) -> U61#(X1, X2, X3, X4), U61#(ok X1, ok X2, ok X3, ok X4) -> U61#(X1, X2, X3, X4))
(U61#(mark X1, X2, X3, X4) -> U61#(X1, X2, X3, X4), U61#(mark X1, X2, X3, X4) -> U61#(X1, X2, X3, X4))
(U63#(mark X1, X2, X3, X4) -> U63#(X1, X2, X3, X4), U63#(ok X1, ok X2, ok X3, ok X4) -> U63#(X1, X2, X3, X4))
(U63#(mark X1, X2, X3, X4) -> U63#(X1, X2, X3, X4), U63#(mark X1, X2, X3, X4) -> U63#(X1, X2, X3, X4))
(active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS), U61#(ok X1, ok X2, ok X3, ok X4) -> U61#(X1, X2, X3, X4))
(active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS), U61#(mark X1, X2, X3, X4) -> U61#(X1, X2, X3, X4))
(active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS), U62#(ok X1, ok X2, ok X3, ok X4) -> U62#(X1, X2, X3, X4))
(active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS), U62#(mark X1, X2, X3, X4) -> U62#(X1, X2, X3, X4))
(active# head cons(N, XS) -> U31#(tt(), N), U31#(ok X1, ok X2) -> U31#(X1, X2))
(active# head cons(N, XS) -> U31#(tt(), N), U31#(mark X1, X2) -> U31#(X1, X2))
(active# head X -> head# active X, head# ok X -> head# X)
(active# head X -> head# active X, head# mark X -> head# X)
(active# natsFrom X -> natsFrom# active X, natsFrom# ok X -> natsFrom# X)
(active# natsFrom X -> natsFrom# active X, natsFrom# mark X -> natsFrom# X)
(active# tail X -> tail# active X, tail# ok X -> tail# X)
(active# tail X -> tail# active X, tail# mark X -> tail# X)
(proper# head X -> head# proper X, head# ok X -> head# X)
(proper# head X -> head# proper X, head# mark X -> head# X)
(proper# natsFrom X -> natsFrom# proper X, natsFrom# ok X -> natsFrom# X)
(proper# natsFrom X -> natsFrom# proper X, natsFrom# mark X -> natsFrom# X)
(proper# tail X -> tail# proper X, tail# ok X -> tail# X)
(proper# tail X -> tail# proper X, tail# mark X -> tail# X)
(top# ok X -> top# active X, top# ok X -> top# active X)
(top# ok X -> top# active X, top# ok X -> active# X)
(top# ok X -> top# active X, top# mark X -> top# proper X)
(top# ok X -> top# active X, top# mark X -> proper# X)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# take(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# take(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# tail X -> proper# X)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# tail X -> tail# proper X)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# sel(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# sel(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# s X -> proper# X)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# s X -> s# proper X)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# natsFrom X -> proper# X)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# natsFrom X -> natsFrom# proper X)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# fst X -> proper# X)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# fst X -> fst# proper X)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U71(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U71(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U72(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U72(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# cons(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# cons(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# pair(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# pair(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U64(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U64(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U51(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U51(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U52(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U52(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# afterNth(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# afterNth(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# head X -> proper# X)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# head X -> head# proper X)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U31(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U31(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U32(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U32(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U21(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U21(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U22(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U22(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# splitAt(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# splitAt(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# snd X -> proper# X)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# snd X -> snd# proper X)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X4, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# take(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# take(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# tail X -> proper# X)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# tail X -> tail# proper X)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# sel(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# sel(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# s X -> proper# X)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# s X -> s# proper X)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# natsFrom X -> proper# X)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# natsFrom X -> natsFrom# proper X)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# fst X -> proper# X)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# fst X -> fst# proper X)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U71(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U71(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U72(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U72(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# cons(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# cons(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# pair(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# pair(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U64(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U64(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U51(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U51(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U52(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U52(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# afterNth(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# afterNth(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# head X -> proper# X)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# head X -> head# proper X)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U31(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U31(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U32(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U32(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U21(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U21(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U22(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U22(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# splitAt(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# splitAt(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# snd X -> proper# X)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# snd X -> snd# proper X)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X4, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
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(proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4), U61#(mark X1, X2, X3, X4) -> U61#(X1, X2, X3, X4))
(active# splitAt(0(), XS) -> pair#(nil(), XS), pair#(ok X1, ok X2) -> pair#(X1, X2))
(active# splitAt(0(), XS) -> pair#(nil(), XS), pair#(mark X1, X2) -> pair#(X1, X2))
(active# splitAt(0(), XS) -> pair#(nil(), XS), pair#(X1, mark X2) -> pair#(X1, X2))
(active# tail cons(N, XS) -> U71#(tt(), XS), U71#(ok X1, ok X2) -> U71#(X1, X2))
(active# tail cons(N, XS) -> U71#(tt(), XS), U71#(mark X1, X2) -> U71#(X1, X2))
(active# afterNth(X1, X2) -> active# X2, active# take(X1, X2) -> take#(active X1, X2))
(active# afterNth(X1, X2) -> active# X2, active# take(X1, X2) -> take#(X1, active X2))
(active# afterNth(X1, X2) -> active# X2, active# take(X1, X2) -> active# X2)
(active# afterNth(X1, X2) -> active# X2, active# take(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X2, active# take(N, XS) -> U81#(tt(), N, XS))
(active# afterNth(X1, X2) -> active# X2, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# afterNth(X1, X2) -> active# X2, active# tail X -> tail# active X)
(active# afterNth(X1, X2) -> active# X2, active# tail X -> active# X)
(active# afterNth(X1, X2) -> active# X2, active# sel(X1, X2) -> sel#(active X1, X2))
(active# afterNth(X1, X2) -> active# X2, active# sel(X1, X2) -> sel#(X1, active X2))
(active# afterNth(X1, X2) -> active# X2, active# sel(X1, X2) -> active# X2)
(active# afterNth(X1, X2) -> active# X2, active# sel(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X2, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# afterNth(X1, X2) -> active# X2, active# s X -> s# active X)
(active# afterNth(X1, X2) -> active# X2, active# s X -> active# X)
(active# afterNth(X1, X2) -> active# X2, active# natsFrom X -> natsFrom# active X)
(active# afterNth(X1, X2) -> active# X2, active# natsFrom X -> active# X)
(active# afterNth(X1, X2) -> active# X2, active# natsFrom N -> s# N)
(active# afterNth(X1, X2) -> active# X2, active# natsFrom N -> natsFrom# s N)
(active# afterNth(X1, X2) -> active# X2, active# natsFrom N -> cons#(N, natsFrom s N))
(active# afterNth(X1, X2) -> active# X2, active# fst pair(X, Y) -> U21#(tt(), X))
(active# afterNth(X1, X2) -> active# X2, active# fst X -> fst# active X)
(active# afterNth(X1, X2) -> active# X2, active# fst X -> active# X)
(active# afterNth(X1, X2) -> active# X2, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# afterNth(X1, X2) -> active# X2, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# afterNth(X1, X2) -> active# X2, active# U81(X1, X2, X3) -> active# X1)
(active# afterNth(X1, X2) -> active# X2, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# afterNth(X1, X2) -> active# X2, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# afterNth(X1, X2) -> active# X2, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# afterNth(X1, X2) -> active# X2, active# U82(X1, X2, X3) -> active# X1)
(active# afterNth(X1, X2) -> active# X2, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# afterNth(X1, X2) -> active# X2, active# U71(X1, X2) -> U71#(active X1, X2))
(active# afterNth(X1, X2) -> active# X2, active# U71(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X2, active# U72(X1, X2) -> U72#(active X1, X2))
(active# afterNth(X1, X2) -> active# X2, active# U72(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X2, active# cons(X1, X2) -> cons#(active X1, X2))
(active# afterNth(X1, X2) -> active# X2, active# cons(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X2, active# pair(X1, X2) -> pair#(active X1, X2))
(active# afterNth(X1, X2) -> active# X2, active# pair(X1, X2) -> pair#(X1, active X2))
(active# afterNth(X1, X2) -> active# X2, active# pair(X1, X2) -> active# X2)
(active# afterNth(X1, X2) -> active# X2, active# pair(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X2, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# afterNth(X1, X2) -> active# X2, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# afterNth(X1, X2) -> active# X2, active# U64(X1, X2) -> U64#(active X1, X2))
(active# afterNth(X1, X2) -> active# X2, active# U64(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X2, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# afterNth(X1, X2) -> active# X2, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# afterNth(X1, X2) -> active# X2, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# afterNth(X1, X2) -> active# X2, active# U63(X1, X2, X3, X4) -> active# X1)
(active# afterNth(X1, X2) -> active# X2, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# afterNth(X1, X2) -> active# X2, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# afterNth(X1, X2) -> active# X2, active# U61(X1, X2, X3, X4) -> active# X1)
(active# afterNth(X1, X2) -> active# X2, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# afterNth(X1, X2) -> active# X2, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# afterNth(X1, X2) -> active# X2, active# U62(X1, X2, X3, X4) -> active# X1)
(active# afterNth(X1, X2) -> active# X2, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# afterNth(X1, X2) -> active# X2, active# U51(X1, X2) -> U51#(active X1, X2))
(active# afterNth(X1, X2) -> active# X2, active# U51(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X2, active# U52(X1, X2) -> U52#(active X1, X2))
(active# afterNth(X1, X2) -> active# X2, active# U52(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X2, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# afterNth(X1, X2) -> active# X2, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# afterNth(X1, X2) -> active# X2, active# afterNth(X1, X2) -> active# X2)
(active# afterNth(X1, X2) -> active# X2, active# afterNth(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X2, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# afterNth(X1, X2) -> active# X2, active# head cons(N, XS) -> U31#(tt(), N))
(active# afterNth(X1, X2) -> active# X2, active# head X -> head# active X)
(active# afterNth(X1, X2) -> active# X2, active# head X -> active# X)
(active# afterNth(X1, X2) -> active# X2, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# afterNth(X1, X2) -> active# X2, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# afterNth(X1, X2) -> active# X2, active# U41(X1, X2, X3) -> active# X1)
(active# afterNth(X1, X2) -> active# X2, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# afterNth(X1, X2) -> active# X2, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# afterNth(X1, X2) -> active# X2, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# afterNth(X1, X2) -> active# X2, active# U42(X1, X2, X3) -> active# X1)
(active# afterNth(X1, X2) -> active# X2, active# U31(tt(), N) -> U32#(tt(), N))
(active# afterNth(X1, X2) -> active# X2, active# U31(X1, X2) -> U31#(active X1, X2))
(active# afterNth(X1, X2) -> active# X2, active# U31(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X2, active# U32(X1, X2) -> U32#(active X1, X2))
(active# afterNth(X1, X2) -> active# X2, active# U32(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X2, active# U21(tt(), X) -> U22#(tt(), X))
(active# afterNth(X1, X2) -> active# X2, active# U21(X1, X2) -> U21#(active X1, X2))
(active# afterNth(X1, X2) -> active# X2, active# U21(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X2, active# U22(X1, X2) -> U22#(active X1, X2))
(active# afterNth(X1, X2) -> active# X2, active# U22(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X2, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# afterNth(X1, X2) -> active# X2, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# afterNth(X1, X2) -> active# X2, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# afterNth(X1, X2) -> active# X2, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# afterNth(X1, X2) -> active# X2, active# splitAt(X1, X2) -> active# X2)
(active# afterNth(X1, X2) -> active# X2, active# splitAt(X1, X2) -> active# X1)
(active# afterNth(X1, X2) -> active# X2, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# afterNth(X1, X2) -> active# X2, active# snd X -> snd# active X)
(active# afterNth(X1, X2) -> active# X2, active# snd X -> active# X)
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(proper# U12(X1, X2, X3) -> proper# X2, proper# snd X -> snd# proper X)
(proper# U12(X1, X2, X3) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U12(X1, X2, X3) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X2, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U12(X1, X2, X3) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U12(X1, X2, X3) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X2, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# splitAt(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X2, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X2, proper# tail X -> proper# X)
(proper# splitAt(X1, X2) -> proper# X2, proper# tail X -> tail# proper X)
(proper# splitAt(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X2, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X2, proper# s X -> proper# X)
(proper# splitAt(X1, X2) -> proper# X2, proper# s X -> s# proper X)
(proper# splitAt(X1, X2) -> proper# X2, proper# natsFrom X -> proper# X)
(proper# splitAt(X1, X2) -> proper# X2, proper# natsFrom X -> natsFrom# proper X)
(proper# splitAt(X1, X2) -> proper# X2, proper# fst X -> proper# X)
(proper# splitAt(X1, X2) -> proper# X2, proper# fst X -> fst# proper X)
(proper# splitAt(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X3)
(proper# splitAt(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# splitAt(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X3)
(proper# splitAt(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# splitAt(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X2, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X2, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X2, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X2, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X2, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# splitAt(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# splitAt(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# splitAt(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# splitAt(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# splitAt(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# splitAt(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# splitAt(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# splitAt(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# splitAt(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X2, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X2, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X2, proper# head X -> proper# X)
(proper# splitAt(X1, X2) -> proper# X2, proper# head X -> head# proper X)
(proper# splitAt(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X3)
(proper# splitAt(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# splitAt(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X3)
(proper# splitAt(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# splitAt(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X2, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X2, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X2, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X2, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X2, proper# snd X -> proper# X)
(proper# splitAt(X1, X2) -> proper# X2, proper# snd X -> snd# proper X)
(proper# splitAt(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X3)
(proper# splitAt(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# splitAt(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X3)
(proper# splitAt(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U21(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X2, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X2, proper# tail X -> proper# X)
(proper# U21(X1, X2) -> proper# X2, proper# tail X -> tail# proper X)
(proper# U21(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X2, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X2, proper# s X -> proper# X)
(proper# U21(X1, X2) -> proper# X2, proper# s X -> s# proper X)
(proper# U21(X1, X2) -> proper# X2, proper# natsFrom X -> proper# X)
(proper# U21(X1, X2) -> proper# X2, proper# natsFrom X -> natsFrom# proper X)
(proper# U21(X1, X2) -> proper# X2, proper# fst X -> proper# X)
(proper# U21(X1, X2) -> proper# X2, proper# fst X -> fst# proper X)
(proper# U21(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U21(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U21(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U21(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U21(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U21(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U21(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U21(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U21(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X2, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X2, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X2, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X2, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X2, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U21(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U21(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U21(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U21(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U21(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U21(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U21(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U21(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U21(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U21(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U21(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U21(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U21(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U21(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U21(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X2, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X2, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X2, proper# head X -> proper# X)
(proper# U21(X1, X2) -> proper# X2, proper# head X -> head# proper X)
(proper# U21(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U21(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U21(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U21(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U21(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U21(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U21(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U21(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U21(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X2, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X2, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X2, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X2, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X2, proper# snd X -> proper# X)
(proper# U21(X1, X2) -> proper# X2, proper# snd X -> snd# proper X)
(proper# U21(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U21(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U21(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U21(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U21(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U21(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U21(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U21(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U31(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X2, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X2, proper# tail X -> proper# X)
(proper# U31(X1, X2) -> proper# X2, proper# tail X -> tail# proper X)
(proper# U31(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X2, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X2, proper# s X -> proper# X)
(proper# U31(X1, X2) -> proper# X2, proper# s X -> s# proper X)
(proper# U31(X1, X2) -> proper# X2, proper# natsFrom X -> proper# X)
(proper# U31(X1, X2) -> proper# X2, proper# natsFrom X -> natsFrom# proper X)
(proper# U31(X1, X2) -> proper# X2, proper# fst X -> proper# X)
(proper# U31(X1, X2) -> proper# X2, proper# fst X -> fst# proper X)
(proper# U31(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U31(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U31(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U31(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U31(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U31(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U31(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U31(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U31(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X2, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X2, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X2, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X2, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X2, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U31(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U31(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U31(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U31(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U31(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U31(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U31(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U31(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U31(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U31(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U31(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U31(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U31(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U31(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U31(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X2, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X2, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X2, proper# head X -> proper# X)
(proper# U31(X1, X2) -> proper# X2, proper# head X -> head# proper X)
(proper# U31(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U31(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U31(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U31(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U31(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U31(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U31(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U31(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U31(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X2, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X2, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X2, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X2, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X2, proper# snd X -> proper# X)
(proper# U31(X1, X2) -> proper# X2, proper# snd X -> snd# proper X)
(proper# U31(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U31(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U31(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U31(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U31(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U31(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U31(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U31(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U41(X1, X2, X3) -> proper# X2, proper# take(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X2, proper# take(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X2, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X2, proper# tail X -> proper# X)
(proper# U41(X1, X2, X3) -> proper# X2, proper# tail X -> tail# proper X)
(proper# U41(X1, X2, X3) -> proper# X2, proper# sel(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X2, proper# sel(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X2, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X2, proper# s X -> proper# X)
(proper# U41(X1, X2, X3) -> proper# X2, proper# s X -> s# proper X)
(proper# U41(X1, X2, X3) -> proper# X2, proper# natsFrom X -> proper# X)
(proper# U41(X1, X2, X3) -> proper# X2, proper# natsFrom X -> natsFrom# proper X)
(proper# U41(X1, X2, X3) -> proper# X2, proper# fst X -> proper# X)
(proper# U41(X1, X2, X3) -> proper# X2, proper# fst X -> fst# proper X)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U41(X1, X2, X3) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U41(X1, X2, X3) -> proper# X2, proper# U71(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U71(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X2, proper# U72(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U72(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X2, proper# cons(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X2, proper# cons(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X2, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X2, proper# pair(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X2, proper# pair(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X2, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X2, proper# U64(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U64(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U41(X1, X2, X3) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U41(X1, X2, X3) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U41(X1, X2, X3) -> proper# X2, proper# U51(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U51(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X2, proper# U52(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U52(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X2, proper# afterNth(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X2, proper# afterNth(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X2, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X2, proper# head X -> proper# X)
(proper# U41(X1, X2, X3) -> proper# X2, proper# head X -> head# proper X)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U41(X1, X2, X3) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U41(X1, X2, X3) -> proper# X2, proper# U31(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U31(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X2, proper# U32(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U32(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X2, proper# U21(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U21(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X2, proper# U22(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U22(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X2, proper# splitAt(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X2, proper# splitAt(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X2, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X2, proper# snd X -> proper# X)
(proper# U41(X1, X2, X3) -> proper# X2, proper# snd X -> snd# proper X)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U41(X1, X2, X3) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X2, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U52(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X2, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X2, proper# tail X -> proper# X)
(proper# U52(X1, X2) -> proper# X2, proper# tail X -> tail# proper X)
(proper# U52(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X2, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X2, proper# s X -> proper# X)
(proper# U52(X1, X2) -> proper# X2, proper# s X -> s# proper X)
(proper# U52(X1, X2) -> proper# X2, proper# natsFrom X -> proper# X)
(proper# U52(X1, X2) -> proper# X2, proper# natsFrom X -> natsFrom# proper X)
(proper# U52(X1, X2) -> proper# X2, proper# fst X -> proper# X)
(proper# U52(X1, X2) -> proper# X2, proper# fst X -> fst# proper X)
(proper# U52(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U52(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U52(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U52(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U52(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U52(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U52(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U52(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U52(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X2, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X2, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X2, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X2, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X2, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U52(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U52(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U52(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U52(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U52(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U52(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U52(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U52(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U52(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U52(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U52(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U52(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U52(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U52(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U52(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X2, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X2, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X2, proper# head X -> proper# X)
(proper# U52(X1, X2) -> proper# X2, proper# head X -> head# proper X)
(proper# U52(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U52(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U52(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U52(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U52(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U52(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U52(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U52(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U52(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X2, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X2, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X2, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X2, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X2, proper# snd X -> proper# X)
(proper# U52(X1, X2) -> proper# X2, proper# snd X -> snd# proper X)
(proper# U52(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U52(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U52(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U52(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U52(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U52(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U52(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U52(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# take(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# take(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# tail X -> proper# X)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# tail X -> tail# proper X)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# sel(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# sel(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# s X -> proper# X)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# s X -> s# proper X)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# natsFrom X -> proper# X)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# natsFrom X -> natsFrom# proper X)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# fst X -> proper# X)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# fst X -> fst# proper X)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U71(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U71(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U72(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U72(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# cons(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# cons(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# pair(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# pair(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U64(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U64(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U51(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U51(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U52(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U52(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# afterNth(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# afterNth(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# head X -> proper# X)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# head X -> head# proper X)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U31(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U31(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U32(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U32(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U21(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U21(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U22(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U22(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# splitAt(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# splitAt(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# snd X -> proper# X)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# snd X -> snd# proper X)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X2, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# take(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# take(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# tail X -> proper# X)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# tail X -> tail# proper X)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# sel(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# sel(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# s X -> proper# X)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# s X -> s# proper X)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# natsFrom X -> proper# X)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# natsFrom X -> natsFrom# proper X)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# fst X -> proper# X)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# fst X -> fst# proper X)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U71(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U71(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U72(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U72(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# cons(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# cons(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# pair(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# pair(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U64(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U64(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U51(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U51(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U52(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U52(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# afterNth(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# afterNth(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# head X -> proper# X)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# head X -> head# proper X)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U31(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U31(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U32(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U32(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U21(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U21(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U22(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U22(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# splitAt(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# splitAt(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# snd X -> proper# X)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# snd X -> snd# proper X)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X2, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# pair(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X2, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X2, proper# tail X -> proper# X)
(proper# pair(X1, X2) -> proper# X2, proper# tail X -> tail# proper X)
(proper# pair(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X2, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X2, proper# s X -> proper# X)
(proper# pair(X1, X2) -> proper# X2, proper# s X -> s# proper X)
(proper# pair(X1, X2) -> proper# X2, proper# natsFrom X -> proper# X)
(proper# pair(X1, X2) -> proper# X2, proper# natsFrom X -> natsFrom# proper X)
(proper# pair(X1, X2) -> proper# X2, proper# fst X -> proper# X)
(proper# pair(X1, X2) -> proper# X2, proper# fst X -> fst# proper X)
(proper# pair(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X3)
(proper# pair(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X2)
(proper# pair(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X1)
(proper# pair(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# pair(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X3)
(proper# pair(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X2)
(proper# pair(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X1)
(proper# pair(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# pair(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X2, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X2, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X2, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X2, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X2, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# pair(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# pair(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# pair(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# pair(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# pair(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# pair(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# pair(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# pair(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# pair(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# pair(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# pair(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# pair(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# pair(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# pair(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# pair(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X2, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X2, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X2, proper# head X -> proper# X)
(proper# pair(X1, X2) -> proper# X2, proper# head X -> head# proper X)
(proper# pair(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X3)
(proper# pair(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X2)
(proper# pair(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X1)
(proper# pair(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# pair(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X3)
(proper# pair(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X2)
(proper# pair(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X1)
(proper# pair(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# pair(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X2, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X2, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X2, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X2, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X2, proper# snd X -> proper# X)
(proper# pair(X1, X2) -> proper# X2, proper# snd X -> snd# proper X)
(proper# pair(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X3)
(proper# pair(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X2)
(proper# pair(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X1)
(proper# pair(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# pair(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X3)
(proper# pair(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X2)
(proper# pair(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X1)
(proper# pair(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U72(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X2, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X2, proper# tail X -> proper# X)
(proper# U72(X1, X2) -> proper# X2, proper# tail X -> tail# proper X)
(proper# U72(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X2, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X2, proper# s X -> proper# X)
(proper# U72(X1, X2) -> proper# X2, proper# s X -> s# proper X)
(proper# U72(X1, X2) -> proper# X2, proper# natsFrom X -> proper# X)
(proper# U72(X1, X2) -> proper# X2, proper# natsFrom X -> natsFrom# proper X)
(proper# U72(X1, X2) -> proper# X2, proper# fst X -> proper# X)
(proper# U72(X1, X2) -> proper# X2, proper# fst X -> fst# proper X)
(proper# U72(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U72(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U72(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U72(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U72(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U72(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U72(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U72(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U72(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X2, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X2, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X2, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X2, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X2, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U72(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U72(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U72(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U72(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U72(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U72(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U72(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U72(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U72(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U72(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U72(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U72(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U72(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U72(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U72(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X2, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X2, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X2, proper# head X -> proper# X)
(proper# U72(X1, X2) -> proper# X2, proper# head X -> head# proper X)
(proper# U72(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U72(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U72(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U72(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U72(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U72(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U72(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U72(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U72(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X2, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X2, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X2, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X2, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X2, proper# snd X -> proper# X)
(proper# U72(X1, X2) -> proper# X2, proper# snd X -> snd# proper X)
(proper# U72(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U72(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U72(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U72(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U72(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U72(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U72(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U72(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U82(X1, X2, X3) -> proper# X2, proper# take(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X2, proper# take(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X2, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X2, proper# tail X -> proper# X)
(proper# U82(X1, X2, X3) -> proper# X2, proper# tail X -> tail# proper X)
(proper# U82(X1, X2, X3) -> proper# X2, proper# sel(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X2, proper# sel(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X2, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X2, proper# s X -> proper# X)
(proper# U82(X1, X2, X3) -> proper# X2, proper# s X -> s# proper X)
(proper# U82(X1, X2, X3) -> proper# X2, proper# natsFrom X -> proper# X)
(proper# U82(X1, X2, X3) -> proper# X2, proper# natsFrom X -> natsFrom# proper X)
(proper# U82(X1, X2, X3) -> proper# X2, proper# fst X -> proper# X)
(proper# U82(X1, X2, X3) -> proper# X2, proper# fst X -> fst# proper X)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U82(X1, X2, X3) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U82(X1, X2, X3) -> proper# X2, proper# U71(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U71(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X2, proper# U72(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U72(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X2, proper# cons(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X2, proper# cons(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X2, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X2, proper# pair(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X2, proper# pair(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X2, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X2, proper# U64(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U64(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U82(X1, X2, X3) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U82(X1, X2, X3) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U82(X1, X2, X3) -> proper# X2, proper# U51(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U51(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X2, proper# U52(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U52(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X2, proper# afterNth(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X2, proper# afterNth(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X2, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X2, proper# head X -> proper# X)
(proper# U82(X1, X2, X3) -> proper# X2, proper# head X -> head# proper X)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U82(X1, X2, X3) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U82(X1, X2, X3) -> proper# X2, proper# U31(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U31(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X2, proper# U32(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U32(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X2, proper# U21(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U21(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X2, proper# U22(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U22(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X2, proper# splitAt(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X2, proper# splitAt(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X2, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X2, proper# snd X -> proper# X)
(proper# U82(X1, X2, X3) -> proper# X2, proper# snd X -> snd# proper X)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U82(X1, X2, X3) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X2, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# sel(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X2, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X2, proper# tail X -> proper# X)
(proper# sel(X1, X2) -> proper# X2, proper# tail X -> tail# proper X)
(proper# sel(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X2, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X2, proper# s X -> proper# X)
(proper# sel(X1, X2) -> proper# X2, proper# s X -> s# proper X)
(proper# sel(X1, X2) -> proper# X2, proper# natsFrom X -> proper# X)
(proper# sel(X1, X2) -> proper# X2, proper# natsFrom X -> natsFrom# proper X)
(proper# sel(X1, X2) -> proper# X2, proper# fst X -> proper# X)
(proper# sel(X1, X2) -> proper# X2, proper# fst X -> fst# proper X)
(proper# sel(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X3)
(proper# sel(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X2)
(proper# sel(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X1)
(proper# sel(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# sel(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X3)
(proper# sel(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X2)
(proper# sel(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X1)
(proper# sel(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# sel(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X2, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X2, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X2, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X2, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X2, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# sel(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# sel(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# sel(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# sel(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# sel(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# sel(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# sel(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# sel(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# sel(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# sel(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# sel(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# sel(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# sel(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# sel(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# sel(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X2, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X2, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X2, proper# head X -> proper# X)
(proper# sel(X1, X2) -> proper# X2, proper# head X -> head# proper X)
(proper# sel(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X3)
(proper# sel(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X2)
(proper# sel(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X1)
(proper# sel(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# sel(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X3)
(proper# sel(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X2)
(proper# sel(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X1)
(proper# sel(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# sel(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X2, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X2, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X2, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X2, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X2, proper# snd X -> proper# X)
(proper# sel(X1, X2) -> proper# X2, proper# snd X -> snd# proper X)
(proper# sel(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X3)
(proper# sel(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X2)
(proper# sel(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X1)
(proper# sel(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# sel(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X3)
(proper# sel(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X2)
(proper# sel(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X1)
(proper# sel(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(active# U12(tt(), N, XS) -> snd# splitAt(N, XS), snd# ok X -> snd# X)
(active# U12(tt(), N, XS) -> snd# splitAt(N, XS), snd# mark X -> snd# X)
(active# U82(tt(), N, XS) -> fst# splitAt(N, XS), fst# ok X -> fst# X)
(active# U82(tt(), N, XS) -> fst# splitAt(N, XS), fst# mark X -> fst# X)
(active# head X -> active# X, active# take(X1, X2) -> take#(active X1, X2))
(active# head X -> active# X, active# take(X1, X2) -> take#(X1, active X2))
(active# head X -> active# X, active# take(X1, X2) -> active# X2)
(active# head X -> active# X, active# take(X1, X2) -> active# X1)
(active# head X -> active# X, active# take(N, XS) -> U81#(tt(), N, XS))
(active# head X -> active# X, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# head X -> active# X, active# tail X -> tail# active X)
(active# head X -> active# X, active# tail X -> active# X)
(active# head X -> active# X, active# sel(X1, X2) -> sel#(active X1, X2))
(active# head X -> active# X, active# sel(X1, X2) -> sel#(X1, active X2))
(active# head X -> active# X, active# sel(X1, X2) -> active# X2)
(active# head X -> active# X, active# sel(X1, X2) -> active# X1)
(active# head X -> active# X, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# head X -> active# X, active# s X -> s# active X)
(active# head X -> active# X, active# s X -> active# X)
(active# head X -> active# X, active# natsFrom X -> natsFrom# active X)
(active# head X -> active# X, active# natsFrom X -> active# X)
(active# head X -> active# X, active# natsFrom N -> s# N)
(active# head X -> active# X, active# natsFrom N -> natsFrom# s N)
(active# head X -> active# X, active# natsFrom N -> cons#(N, natsFrom s N))
(active# head X -> active# X, active# fst pair(X, Y) -> U21#(tt(), X))
(active# head X -> active# X, active# fst X -> fst# active X)
(active# head X -> active# X, active# fst X -> active# X)
(active# head X -> active# X, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# head X -> active# X, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# head X -> active# X, active# U81(X1, X2, X3) -> active# X1)
(active# head X -> active# X, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# head X -> active# X, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# head X -> active# X, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# head X -> active# X, active# U82(X1, X2, X3) -> active# X1)
(active# head X -> active# X, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# head X -> active# X, active# U71(X1, X2) -> U71#(active X1, X2))
(active# head X -> active# X, active# U71(X1, X2) -> active# X1)
(active# head X -> active# X, active# U72(X1, X2) -> U72#(active X1, X2))
(active# head X -> active# X, active# U72(X1, X2) -> active# X1)
(active# head X -> active# X, active# cons(X1, X2) -> cons#(active X1, X2))
(active# head X -> active# X, active# cons(X1, X2) -> active# X1)
(active# head X -> active# X, active# pair(X1, X2) -> pair#(active X1, X2))
(active# head X -> active# X, active# pair(X1, X2) -> pair#(X1, active X2))
(active# head X -> active# X, active# pair(X1, X2) -> active# X2)
(active# head X -> active# X, active# pair(X1, X2) -> active# X1)
(active# head X -> active# X, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# head X -> active# X, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# head X -> active# X, active# U64(X1, X2) -> U64#(active X1, X2))
(active# head X -> active# X, active# U64(X1, X2) -> active# X1)
(active# head X -> active# X, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# head X -> active# X, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# head X -> active# X, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# head X -> active# X, active# U63(X1, X2, X3, X4) -> active# X1)
(active# head X -> active# X, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# head X -> active# X, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# head X -> active# X, active# U61(X1, X2, X3, X4) -> active# X1)
(active# head X -> active# X, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# head X -> active# X, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# head X -> active# X, active# U62(X1, X2, X3, X4) -> active# X1)
(active# head X -> active# X, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# head X -> active# X, active# U51(X1, X2) -> U51#(active X1, X2))
(active# head X -> active# X, active# U51(X1, X2) -> active# X1)
(active# head X -> active# X, active# U52(X1, X2) -> U52#(active X1, X2))
(active# head X -> active# X, active# U52(X1, X2) -> active# X1)
(active# head X -> active# X, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# head X -> active# X, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# head X -> active# X, active# afterNth(X1, X2) -> active# X2)
(active# head X -> active# X, active# afterNth(X1, X2) -> active# X1)
(active# head X -> active# X, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# head X -> active# X, active# head cons(N, XS) -> U31#(tt(), N))
(active# head X -> active# X, active# head X -> head# active X)
(active# head X -> active# X, active# head X -> active# X)
(active# head X -> active# X, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# head X -> active# X, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# head X -> active# X, active# U41(X1, X2, X3) -> active# X1)
(active# head X -> active# X, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# head X -> active# X, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# head X -> active# X, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# head X -> active# X, active# U42(X1, X2, X3) -> active# X1)
(active# head X -> active# X, active# U31(tt(), N) -> U32#(tt(), N))
(active# head X -> active# X, active# U31(X1, X2) -> U31#(active X1, X2))
(active# head X -> active# X, active# U31(X1, X2) -> active# X1)
(active# head X -> active# X, active# U32(X1, X2) -> U32#(active X1, X2))
(active# head X -> active# X, active# U32(X1, X2) -> active# X1)
(active# head X -> active# X, active# U21(tt(), X) -> U22#(tt(), X))
(active# head X -> active# X, active# U21(X1, X2) -> U21#(active X1, X2))
(active# head X -> active# X, active# U21(X1, X2) -> active# X1)
(active# head X -> active# X, active# U22(X1, X2) -> U22#(active X1, X2))
(active# head X -> active# X, active# U22(X1, X2) -> active# X1)
(active# head X -> active# X, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# head X -> active# X, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# head X -> active# X, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# head X -> active# X, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# head X -> active# X, active# splitAt(X1, X2) -> active# X2)
(active# head X -> active# X, active# splitAt(X1, X2) -> active# X1)
(active# head X -> active# X, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# head X -> active# X, active# snd X -> snd# active X)
(active# head X -> active# X, active# snd X -> active# X)
(active# head X -> active# X, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# head X -> active# X, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# head X -> active# X, active# U11(X1, X2, X3) -> active# X1)
(active# head X -> active# X, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# head X -> active# X, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# head X -> active# X, active# U12(X1, X2, X3) -> active# X1)
(active# head X -> active# X, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# natsFrom X -> active# X, active# take(X1, X2) -> take#(active X1, X2))
(active# natsFrom X -> active# X, active# take(X1, X2) -> take#(X1, active X2))
(active# natsFrom X -> active# X, active# take(X1, X2) -> active# X2)
(active# natsFrom X -> active# X, active# take(X1, X2) -> active# X1)
(active# natsFrom X -> active# X, active# take(N, XS) -> U81#(tt(), N, XS))
(active# natsFrom X -> active# X, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# natsFrom X -> active# X, active# tail X -> tail# active X)
(active# natsFrom X -> active# X, active# tail X -> active# X)
(active# natsFrom X -> active# X, active# sel(X1, X2) -> sel#(active X1, X2))
(active# natsFrom X -> active# X, active# sel(X1, X2) -> sel#(X1, active X2))
(active# natsFrom X -> active# X, active# sel(X1, X2) -> active# X2)
(active# natsFrom X -> active# X, active# sel(X1, X2) -> active# X1)
(active# natsFrom X -> active# X, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# natsFrom X -> active# X, active# s X -> s# active X)
(active# natsFrom X -> active# X, active# s X -> active# X)
(active# natsFrom X -> active# X, active# natsFrom X -> natsFrom# active X)
(active# natsFrom X -> active# X, active# natsFrom X -> active# X)
(active# natsFrom X -> active# X, active# natsFrom N -> s# N)
(active# natsFrom X -> active# X, active# natsFrom N -> natsFrom# s N)
(active# natsFrom X -> active# X, active# natsFrom N -> cons#(N, natsFrom s N))
(active# natsFrom X -> active# X, active# fst pair(X, Y) -> U21#(tt(), X))
(active# natsFrom X -> active# X, active# fst X -> fst# active X)
(active# natsFrom X -> active# X, active# fst X -> active# X)
(active# natsFrom X -> active# X, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# natsFrom X -> active# X, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# natsFrom X -> active# X, active# U81(X1, X2, X3) -> active# X1)
(active# natsFrom X -> active# X, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# natsFrom X -> active# X, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# natsFrom X -> active# X, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# natsFrom X -> active# X, active# U82(X1, X2, X3) -> active# X1)
(active# natsFrom X -> active# X, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# natsFrom X -> active# X, active# U71(X1, X2) -> U71#(active X1, X2))
(active# natsFrom X -> active# X, active# U71(X1, X2) -> active# X1)
(active# natsFrom X -> active# X, active# U72(X1, X2) -> U72#(active X1, X2))
(active# natsFrom X -> active# X, active# U72(X1, X2) -> active# X1)
(active# natsFrom X -> active# X, active# cons(X1, X2) -> cons#(active X1, X2))
(active# natsFrom X -> active# X, active# cons(X1, X2) -> active# X1)
(active# natsFrom X -> active# X, active# pair(X1, X2) -> pair#(active X1, X2))
(active# natsFrom X -> active# X, active# pair(X1, X2) -> pair#(X1, active X2))
(active# natsFrom X -> active# X, active# pair(X1, X2) -> active# X2)
(active# natsFrom X -> active# X, active# pair(X1, X2) -> active# X1)
(active# natsFrom X -> active# X, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# natsFrom X -> active# X, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# natsFrom X -> active# X, active# U64(X1, X2) -> U64#(active X1, X2))
(active# natsFrom X -> active# X, active# U64(X1, X2) -> active# X1)
(active# natsFrom X -> active# X, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# natsFrom X -> active# X, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# natsFrom X -> active# X, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# natsFrom X -> active# X, active# U63(X1, X2, X3, X4) -> active# X1)
(active# natsFrom X -> active# X, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# natsFrom X -> active# X, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# natsFrom X -> active# X, active# U61(X1, X2, X3, X4) -> active# X1)
(active# natsFrom X -> active# X, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# natsFrom X -> active# X, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# natsFrom X -> active# X, active# U62(X1, X2, X3, X4) -> active# X1)
(active# natsFrom X -> active# X, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# natsFrom X -> active# X, active# U51(X1, X2) -> U51#(active X1, X2))
(active# natsFrom X -> active# X, active# U51(X1, X2) -> active# X1)
(active# natsFrom X -> active# X, active# U52(X1, X2) -> U52#(active X1, X2))
(active# natsFrom X -> active# X, active# U52(X1, X2) -> active# X1)
(active# natsFrom X -> active# X, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# natsFrom X -> active# X, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# natsFrom X -> active# X, active# afterNth(X1, X2) -> active# X2)
(active# natsFrom X -> active# X, active# afterNth(X1, X2) -> active# X1)
(active# natsFrom X -> active# X, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# natsFrom X -> active# X, active# head cons(N, XS) -> U31#(tt(), N))
(active# natsFrom X -> active# X, active# head X -> head# active X)
(active# natsFrom X -> active# X, active# head X -> active# X)
(active# natsFrom X -> active# X, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# natsFrom X -> active# X, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# natsFrom X -> active# X, active# U41(X1, X2, X3) -> active# X1)
(active# natsFrom X -> active# X, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# natsFrom X -> active# X, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# natsFrom X -> active# X, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# natsFrom X -> active# X, active# U42(X1, X2, X3) -> active# X1)
(active# natsFrom X -> active# X, active# U31(tt(), N) -> U32#(tt(), N))
(active# natsFrom X -> active# X, active# U31(X1, X2) -> U31#(active X1, X2))
(active# natsFrom X -> active# X, active# U31(X1, X2) -> active# X1)
(active# natsFrom X -> active# X, active# U32(X1, X2) -> U32#(active X1, X2))
(active# natsFrom X -> active# X, active# U32(X1, X2) -> active# X1)
(active# natsFrom X -> active# X, active# U21(tt(), X) -> U22#(tt(), X))
(active# natsFrom X -> active# X, active# U21(X1, X2) -> U21#(active X1, X2))
(active# natsFrom X -> active# X, active# U21(X1, X2) -> active# X1)
(active# natsFrom X -> active# X, active# U22(X1, X2) -> U22#(active X1, X2))
(active# natsFrom X -> active# X, active# U22(X1, X2) -> active# X1)
(active# natsFrom X -> active# X, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# natsFrom X -> active# X, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# natsFrom X -> active# X, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# natsFrom X -> active# X, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# natsFrom X -> active# X, active# splitAt(X1, X2) -> active# X2)
(active# natsFrom X -> active# X, active# splitAt(X1, X2) -> active# X1)
(active# natsFrom X -> active# X, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# natsFrom X -> active# X, active# snd X -> snd# active X)
(active# natsFrom X -> active# X, active# snd X -> active# X)
(active# natsFrom X -> active# X, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# natsFrom X -> active# X, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# natsFrom X -> active# X, active# U11(X1, X2, X3) -> active# X1)
(active# natsFrom X -> active# X, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# natsFrom X -> active# X, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# natsFrom X -> active# X, active# U12(X1, X2, X3) -> active# X1)
(active# natsFrom X -> active# X, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# tail X -> active# X, active# take(X1, X2) -> take#(active X1, X2))
(active# tail X -> active# X, active# take(X1, X2) -> take#(X1, active X2))
(active# tail X -> active# X, active# take(X1, X2) -> active# X2)
(active# tail X -> active# X, active# take(X1, X2) -> active# X1)
(active# tail X -> active# X, active# take(N, XS) -> U81#(tt(), N, XS))
(active# tail X -> active# X, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# tail X -> active# X, active# tail X -> tail# active X)
(active# tail X -> active# X, active# tail X -> active# X)
(active# tail X -> active# X, active# sel(X1, X2) -> sel#(active X1, X2))
(active# tail X -> active# X, active# sel(X1, X2) -> sel#(X1, active X2))
(active# tail X -> active# X, active# sel(X1, X2) -> active# X2)
(active# tail X -> active# X, active# sel(X1, X2) -> active# X1)
(active# tail X -> active# X, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# tail X -> active# X, active# s X -> s# active X)
(active# tail X -> active# X, active# s X -> active# X)
(active# tail X -> active# X, active# natsFrom X -> natsFrom# active X)
(active# tail X -> active# X, active# natsFrom X -> active# X)
(active# tail X -> active# X, active# natsFrom N -> s# N)
(active# tail X -> active# X, active# natsFrom N -> natsFrom# s N)
(active# tail X -> active# X, active# natsFrom N -> cons#(N, natsFrom s N))
(active# tail X -> active# X, active# fst pair(X, Y) -> U21#(tt(), X))
(active# tail X -> active# X, active# fst X -> fst# active X)
(active# tail X -> active# X, active# fst X -> active# X)
(active# tail X -> active# X, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# tail X -> active# X, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# tail X -> active# X, active# U81(X1, X2, X3) -> active# X1)
(active# tail X -> active# X, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# tail X -> active# X, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# tail X -> active# X, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# tail X -> active# X, active# U82(X1, X2, X3) -> active# X1)
(active# tail X -> active# X, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# tail X -> active# X, active# U71(X1, X2) -> U71#(active X1, X2))
(active# tail X -> active# X, active# U71(X1, X2) -> active# X1)
(active# tail X -> active# X, active# U72(X1, X2) -> U72#(active X1, X2))
(active# tail X -> active# X, active# U72(X1, X2) -> active# X1)
(active# tail X -> active# X, active# cons(X1, X2) -> cons#(active X1, X2))
(active# tail X -> active# X, active# cons(X1, X2) -> active# X1)
(active# tail X -> active# X, active# pair(X1, X2) -> pair#(active X1, X2))
(active# tail X -> active# X, active# pair(X1, X2) -> pair#(X1, active X2))
(active# tail X -> active# X, active# pair(X1, X2) -> active# X2)
(active# tail X -> active# X, active# pair(X1, X2) -> active# X1)
(active# tail X -> active# X, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# tail X -> active# X, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# tail X -> active# X, active# U64(X1, X2) -> U64#(active X1, X2))
(active# tail X -> active# X, active# U64(X1, X2) -> active# X1)
(active# tail X -> active# X, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# tail X -> active# X, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# tail X -> active# X, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# tail X -> active# X, active# U63(X1, X2, X3, X4) -> active# X1)
(active# tail X -> active# X, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# tail X -> active# X, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# tail X -> active# X, active# U61(X1, X2, X3, X4) -> active# X1)
(active# tail X -> active# X, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# tail X -> active# X, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# tail X -> active# X, active# U62(X1, X2, X3, X4) -> active# X1)
(active# tail X -> active# X, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# tail X -> active# X, active# U51(X1, X2) -> U51#(active X1, X2))
(active# tail X -> active# X, active# U51(X1, X2) -> active# X1)
(active# tail X -> active# X, active# U52(X1, X2) -> U52#(active X1, X2))
(active# tail X -> active# X, active# U52(X1, X2) -> active# X1)
(active# tail X -> active# X, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# tail X -> active# X, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# tail X -> active# X, active# afterNth(X1, X2) -> active# X2)
(active# tail X -> active# X, active# afterNth(X1, X2) -> active# X1)
(active# tail X -> active# X, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# tail X -> active# X, active# head cons(N, XS) -> U31#(tt(), N))
(active# tail X -> active# X, active# head X -> head# active X)
(active# tail X -> active# X, active# head X -> active# X)
(active# tail X -> active# X, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# tail X -> active# X, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# tail X -> active# X, active# U41(X1, X2, X3) -> active# X1)
(active# tail X -> active# X, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# tail X -> active# X, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# tail X -> active# X, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# tail X -> active# X, active# U42(X1, X2, X3) -> active# X1)
(active# tail X -> active# X, active# U31(tt(), N) -> U32#(tt(), N))
(active# tail X -> active# X, active# U31(X1, X2) -> U31#(active X1, X2))
(active# tail X -> active# X, active# U31(X1, X2) -> active# X1)
(active# tail X -> active# X, active# U32(X1, X2) -> U32#(active X1, X2))
(active# tail X -> active# X, active# U32(X1, X2) -> active# X1)
(active# tail X -> active# X, active# U21(tt(), X) -> U22#(tt(), X))
(active# tail X -> active# X, active# U21(X1, X2) -> U21#(active X1, X2))
(active# tail X -> active# X, active# U21(X1, X2) -> active# X1)
(active# tail X -> active# X, active# U22(X1, X2) -> U22#(active X1, X2))
(active# tail X -> active# X, active# U22(X1, X2) -> active# X1)
(active# tail X -> active# X, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# tail X -> active# X, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# tail X -> active# X, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# tail X -> active# X, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# tail X -> active# X, active# splitAt(X1, X2) -> active# X2)
(active# tail X -> active# X, active# splitAt(X1, X2) -> active# X1)
(active# tail X -> active# X, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# tail X -> active# X, active# snd X -> snd# active X)
(active# tail X -> active# X, active# snd X -> active# X)
(active# tail X -> active# X, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# tail X -> active# X, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# tail X -> active# X, active# U11(X1, X2, X3) -> active# X1)
(active# tail X -> active# X, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# tail X -> active# X, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# tail X -> active# X, active# U12(X1, X2, X3) -> active# X1)
(active# tail X -> active# X, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(snd# ok X -> snd# X, snd# ok X -> snd# X)
(snd# ok X -> snd# X, snd# mark X -> snd# X)
(head# ok X -> head# X, head# ok X -> head# X)
(head# ok X -> head# X, head# mark X -> head# X)
(fst# ok X -> fst# X, fst# ok X -> fst# X)
(fst# ok X -> fst# X, fst# mark X -> fst# X)
(natsFrom# ok X -> natsFrom# X, natsFrom# ok X -> natsFrom# X)
(natsFrom# ok X -> natsFrom# X, natsFrom# mark X -> natsFrom# X)
(s# ok X -> s# X, s# ok X -> s# X)
(s# ok X -> s# X, s# mark X -> s# X)
(tail# ok X -> tail# X, tail# ok X -> tail# X)
(tail# ok X -> tail# X, tail# mark X -> tail# X)
(proper# head X -> proper# X, proper# take(X1, X2) -> proper# X2)
(proper# head X -> proper# X, proper# take(X1, X2) -> proper# X1)
(proper# head X -> proper# X, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# head X -> proper# X, proper# tail X -> proper# X)
(proper# head X -> proper# X, proper# tail X -> tail# proper X)
(proper# head X -> proper# X, proper# sel(X1, X2) -> proper# X2)
(proper# head X -> proper# X, proper# sel(X1, X2) -> proper# X1)
(proper# head X -> proper# X, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# head X -> proper# X, proper# s X -> proper# X)
(proper# head X -> proper# X, proper# s X -> s# proper X)
(proper# head X -> proper# X, proper# natsFrom X -> proper# X)
(proper# head X -> proper# X, proper# natsFrom X -> natsFrom# proper X)
(proper# head X -> proper# X, proper# fst X -> proper# X)
(proper# head X -> proper# X, proper# fst X -> fst# proper X)
(proper# head X -> proper# X, proper# U81(X1, X2, X3) -> proper# X3)
(proper# head X -> proper# X, proper# U81(X1, X2, X3) -> proper# X2)
(proper# head X -> proper# X, proper# U81(X1, X2, X3) -> proper# X1)
(proper# head X -> proper# X, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# head X -> proper# X, proper# U82(X1, X2, X3) -> proper# X3)
(proper# head X -> proper# X, proper# U82(X1, X2, X3) -> proper# X2)
(proper# head X -> proper# X, proper# U82(X1, X2, X3) -> proper# X1)
(proper# head X -> proper# X, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# head X -> proper# X, proper# U71(X1, X2) -> proper# X2)
(proper# head X -> proper# X, proper# U71(X1, X2) -> proper# X1)
(proper# head X -> proper# X, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# head X -> proper# X, proper# U72(X1, X2) -> proper# X2)
(proper# head X -> proper# X, proper# U72(X1, X2) -> proper# X1)
(proper# head X -> proper# X, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# head X -> proper# X, proper# cons(X1, X2) -> proper# X2)
(proper# head X -> proper# X, proper# cons(X1, X2) -> proper# X1)
(proper# head X -> proper# X, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# head X -> proper# X, proper# pair(X1, X2) -> proper# X2)
(proper# head X -> proper# X, proper# pair(X1, X2) -> proper# X1)
(proper# head X -> proper# X, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# head X -> proper# X, proper# U64(X1, X2) -> proper# X2)
(proper# head X -> proper# X, proper# U64(X1, X2) -> proper# X1)
(proper# head X -> proper# X, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# head X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# head X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# head X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# head X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# head X -> proper# X, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# head X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# head X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# head X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# head X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# head X -> proper# X, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# head X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# head X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# head X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# head X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# head X -> proper# X, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# head X -> proper# X, proper# U51(X1, X2) -> proper# X2)
(proper# head X -> proper# X, proper# U51(X1, X2) -> proper# X1)
(proper# head X -> proper# X, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# head X -> proper# X, proper# U52(X1, X2) -> proper# X2)
(proper# head X -> proper# X, proper# U52(X1, X2) -> proper# X1)
(proper# head X -> proper# X, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# head X -> proper# X, proper# afterNth(X1, X2) -> proper# X2)
(proper# head X -> proper# X, proper# afterNth(X1, X2) -> proper# X1)
(proper# head X -> proper# X, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# head X -> proper# X, proper# head X -> proper# X)
(proper# head X -> proper# X, proper# head X -> head# proper X)
(proper# head X -> proper# X, proper# U41(X1, X2, X3) -> proper# X3)
(proper# head X -> proper# X, proper# U41(X1, X2, X3) -> proper# X2)
(proper# head X -> proper# X, proper# U41(X1, X2, X3) -> proper# X1)
(proper# head X -> proper# X, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# head X -> proper# X, proper# U42(X1, X2, X3) -> proper# X3)
(proper# head X -> proper# X, proper# U42(X1, X2, X3) -> proper# X2)
(proper# head X -> proper# X, proper# U42(X1, X2, X3) -> proper# X1)
(proper# head X -> proper# X, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# head X -> proper# X, proper# U31(X1, X2) -> proper# X2)
(proper# head X -> proper# X, proper# U31(X1, X2) -> proper# X1)
(proper# head X -> proper# X, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# head X -> proper# X, proper# U32(X1, X2) -> proper# X2)
(proper# head X -> proper# X, proper# U32(X1, X2) -> proper# X1)
(proper# head X -> proper# X, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# head X -> proper# X, proper# U21(X1, X2) -> proper# X2)
(proper# head X -> proper# X, proper# U21(X1, X2) -> proper# X1)
(proper# head X -> proper# X, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# head X -> proper# X, proper# U22(X1, X2) -> proper# X2)
(proper# head X -> proper# X, proper# U22(X1, X2) -> proper# X1)
(proper# head X -> proper# X, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# head X -> proper# X, proper# splitAt(X1, X2) -> proper# X2)
(proper# head X -> proper# X, proper# splitAt(X1, X2) -> proper# X1)
(proper# head X -> proper# X, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# head X -> proper# X, proper# snd X -> proper# X)
(proper# head X -> proper# X, proper# snd X -> snd# proper X)
(proper# head X -> proper# X, proper# U11(X1, X2, X3) -> proper# X3)
(proper# head X -> proper# X, proper# U11(X1, X2, X3) -> proper# X2)
(proper# head X -> proper# X, proper# U11(X1, X2, X3) -> proper# X1)
(proper# head X -> proper# X, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# head X -> proper# X, proper# U12(X1, X2, X3) -> proper# X3)
(proper# head X -> proper# X, proper# U12(X1, X2, X3) -> proper# X2)
(proper# head X -> proper# X, proper# U12(X1, X2, X3) -> proper# X1)
(proper# head X -> proper# X, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# natsFrom X -> proper# X, proper# take(X1, X2) -> proper# X2)
(proper# natsFrom X -> proper# X, proper# take(X1, X2) -> proper# X1)
(proper# natsFrom X -> proper# X, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# natsFrom X -> proper# X, proper# tail X -> proper# X)
(proper# natsFrom X -> proper# X, proper# tail X -> tail# proper X)
(proper# natsFrom X -> proper# X, proper# sel(X1, X2) -> proper# X2)
(proper# natsFrom X -> proper# X, proper# sel(X1, X2) -> proper# X1)
(proper# natsFrom X -> proper# X, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# natsFrom X -> proper# X, proper# s X -> proper# X)
(proper# natsFrom X -> proper# X, proper# s X -> s# proper X)
(proper# natsFrom X -> proper# X, proper# natsFrom X -> proper# X)
(proper# natsFrom X -> proper# X, proper# natsFrom X -> natsFrom# proper X)
(proper# natsFrom X -> proper# X, proper# fst X -> proper# X)
(proper# natsFrom X -> proper# X, proper# fst X -> fst# proper X)
(proper# natsFrom X -> proper# X, proper# U81(X1, X2, X3) -> proper# X3)
(proper# natsFrom X -> proper# X, proper# U81(X1, X2, X3) -> proper# X2)
(proper# natsFrom X -> proper# X, proper# U81(X1, X2, X3) -> proper# X1)
(proper# natsFrom X -> proper# X, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# natsFrom X -> proper# X, proper# U82(X1, X2, X3) -> proper# X3)
(proper# natsFrom X -> proper# X, proper# U82(X1, X2, X3) -> proper# X2)
(proper# natsFrom X -> proper# X, proper# U82(X1, X2, X3) -> proper# X1)
(proper# natsFrom X -> proper# X, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# natsFrom X -> proper# X, proper# U71(X1, X2) -> proper# X2)
(proper# natsFrom X -> proper# X, proper# U71(X1, X2) -> proper# X1)
(proper# natsFrom X -> proper# X, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# natsFrom X -> proper# X, proper# U72(X1, X2) -> proper# X2)
(proper# natsFrom X -> proper# X, proper# U72(X1, X2) -> proper# X1)
(proper# natsFrom X -> proper# X, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# natsFrom X -> proper# X, proper# cons(X1, X2) -> proper# X2)
(proper# natsFrom X -> proper# X, proper# cons(X1, X2) -> proper# X1)
(proper# natsFrom X -> proper# X, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# natsFrom X -> proper# X, proper# pair(X1, X2) -> proper# X2)
(proper# natsFrom X -> proper# X, proper# pair(X1, X2) -> proper# X1)
(proper# natsFrom X -> proper# X, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# natsFrom X -> proper# X, proper# U64(X1, X2) -> proper# X2)
(proper# natsFrom X -> proper# X, proper# U64(X1, X2) -> proper# X1)
(proper# natsFrom X -> proper# X, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# natsFrom X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# natsFrom X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# natsFrom X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# natsFrom X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# natsFrom X -> proper# X, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# natsFrom X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# natsFrom X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# natsFrom X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# natsFrom X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# natsFrom X -> proper# X, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# natsFrom X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# natsFrom X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# natsFrom X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# natsFrom X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# natsFrom X -> proper# X, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# natsFrom X -> proper# X, proper# U51(X1, X2) -> proper# X2)
(proper# natsFrom X -> proper# X, proper# U51(X1, X2) -> proper# X1)
(proper# natsFrom X -> proper# X, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# natsFrom X -> proper# X, proper# U52(X1, X2) -> proper# X2)
(proper# natsFrom X -> proper# X, proper# U52(X1, X2) -> proper# X1)
(proper# natsFrom X -> proper# X, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# natsFrom X -> proper# X, proper# afterNth(X1, X2) -> proper# X2)
(proper# natsFrom X -> proper# X, proper# afterNth(X1, X2) -> proper# X1)
(proper# natsFrom X -> proper# X, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# natsFrom X -> proper# X, proper# head X -> proper# X)
(proper# natsFrom X -> proper# X, proper# head X -> head# proper X)
(proper# natsFrom X -> proper# X, proper# U41(X1, X2, X3) -> proper# X3)
(proper# natsFrom X -> proper# X, proper# U41(X1, X2, X3) -> proper# X2)
(proper# natsFrom X -> proper# X, proper# U41(X1, X2, X3) -> proper# X1)
(proper# natsFrom X -> proper# X, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# natsFrom X -> proper# X, proper# U42(X1, X2, X3) -> proper# X3)
(proper# natsFrom X -> proper# X, proper# U42(X1, X2, X3) -> proper# X2)
(proper# natsFrom X -> proper# X, proper# U42(X1, X2, X3) -> proper# X1)
(proper# natsFrom X -> proper# X, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# natsFrom X -> proper# X, proper# U31(X1, X2) -> proper# X2)
(proper# natsFrom X -> proper# X, proper# U31(X1, X2) -> proper# X1)
(proper# natsFrom X -> proper# X, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# natsFrom X -> proper# X, proper# U32(X1, X2) -> proper# X2)
(proper# natsFrom X -> proper# X, proper# U32(X1, X2) -> proper# X1)
(proper# natsFrom X -> proper# X, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# natsFrom X -> proper# X, proper# U21(X1, X2) -> proper# X2)
(proper# natsFrom X -> proper# X, proper# U21(X1, X2) -> proper# X1)
(proper# natsFrom X -> proper# X, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# natsFrom X -> proper# X, proper# U22(X1, X2) -> proper# X2)
(proper# natsFrom X -> proper# X, proper# U22(X1, X2) -> proper# X1)
(proper# natsFrom X -> proper# X, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# natsFrom X -> proper# X, proper# splitAt(X1, X2) -> proper# X2)
(proper# natsFrom X -> proper# X, proper# splitAt(X1, X2) -> proper# X1)
(proper# natsFrom X -> proper# X, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# natsFrom X -> proper# X, proper# snd X -> proper# X)
(proper# natsFrom X -> proper# X, proper# snd X -> snd# proper X)
(proper# natsFrom X -> proper# X, proper# U11(X1, X2, X3) -> proper# X3)
(proper# natsFrom X -> proper# X, proper# U11(X1, X2, X3) -> proper# X2)
(proper# natsFrom X -> proper# X, proper# U11(X1, X2, X3) -> proper# X1)
(proper# natsFrom X -> proper# X, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# natsFrom X -> proper# X, proper# U12(X1, X2, X3) -> proper# X3)
(proper# natsFrom X -> proper# X, proper# U12(X1, X2, X3) -> proper# X2)
(proper# natsFrom X -> proper# X, proper# U12(X1, X2, X3) -> proper# X1)
(proper# natsFrom X -> proper# X, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# tail X -> proper# X, proper# take(X1, X2) -> proper# X2)
(proper# tail X -> proper# X, proper# take(X1, X2) -> proper# X1)
(proper# tail X -> proper# X, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# tail X -> proper# X, proper# tail X -> proper# X)
(proper# tail X -> proper# X, proper# tail X -> tail# proper X)
(proper# tail X -> proper# X, proper# sel(X1, X2) -> proper# X2)
(proper# tail X -> proper# X, proper# sel(X1, X2) -> proper# X1)
(proper# tail X -> proper# X, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# tail X -> proper# X, proper# s X -> proper# X)
(proper# tail X -> proper# X, proper# s X -> s# proper X)
(proper# tail X -> proper# X, proper# natsFrom X -> proper# X)
(proper# tail X -> proper# X, proper# natsFrom X -> natsFrom# proper X)
(proper# tail X -> proper# X, proper# fst X -> proper# X)
(proper# tail X -> proper# X, proper# fst X -> fst# proper X)
(proper# tail X -> proper# X, proper# U81(X1, X2, X3) -> proper# X3)
(proper# tail X -> proper# X, proper# U81(X1, X2, X3) -> proper# X2)
(proper# tail X -> proper# X, proper# U81(X1, X2, X3) -> proper# X1)
(proper# tail X -> proper# X, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# tail X -> proper# X, proper# U82(X1, X2, X3) -> proper# X3)
(proper# tail X -> proper# X, proper# U82(X1, X2, X3) -> proper# X2)
(proper# tail X -> proper# X, proper# U82(X1, X2, X3) -> proper# X1)
(proper# tail X -> proper# X, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# tail X -> proper# X, proper# U71(X1, X2) -> proper# X2)
(proper# tail X -> proper# X, proper# U71(X1, X2) -> proper# X1)
(proper# tail X -> proper# X, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# tail X -> proper# X, proper# U72(X1, X2) -> proper# X2)
(proper# tail X -> proper# X, proper# U72(X1, X2) -> proper# X1)
(proper# tail X -> proper# X, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# tail X -> proper# X, proper# cons(X1, X2) -> proper# X2)
(proper# tail X -> proper# X, proper# cons(X1, X2) -> proper# X1)
(proper# tail X -> proper# X, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# tail X -> proper# X, proper# pair(X1, X2) -> proper# X2)
(proper# tail X -> proper# X, proper# pair(X1, X2) -> proper# X1)
(proper# tail X -> proper# X, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# tail X -> proper# X, proper# U64(X1, X2) -> proper# X2)
(proper# tail X -> proper# X, proper# U64(X1, X2) -> proper# X1)
(proper# tail X -> proper# X, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# tail X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# tail X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# tail X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# tail X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# tail X -> proper# X, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# tail X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# tail X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# tail X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# tail X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# tail X -> proper# X, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# tail X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# tail X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# tail X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# tail X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# tail X -> proper# X, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# tail X -> proper# X, proper# U51(X1, X2) -> proper# X2)
(proper# tail X -> proper# X, proper# U51(X1, X2) -> proper# X1)
(proper# tail X -> proper# X, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# tail X -> proper# X, proper# U52(X1, X2) -> proper# X2)
(proper# tail X -> proper# X, proper# U52(X1, X2) -> proper# X1)
(proper# tail X -> proper# X, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# tail X -> proper# X, proper# afterNth(X1, X2) -> proper# X2)
(proper# tail X -> proper# X, proper# afterNth(X1, X2) -> proper# X1)
(proper# tail X -> proper# X, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# tail X -> proper# X, proper# head X -> proper# X)
(proper# tail X -> proper# X, proper# head X -> head# proper X)
(proper# tail X -> proper# X, proper# U41(X1, X2, X3) -> proper# X3)
(proper# tail X -> proper# X, proper# U41(X1, X2, X3) -> proper# X2)
(proper# tail X -> proper# X, proper# U41(X1, X2, X3) -> proper# X1)
(proper# tail X -> proper# X, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# tail X -> proper# X, proper# U42(X1, X2, X3) -> proper# X3)
(proper# tail X -> proper# X, proper# U42(X1, X2, X3) -> proper# X2)
(proper# tail X -> proper# X, proper# U42(X1, X2, X3) -> proper# X1)
(proper# tail X -> proper# X, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# tail X -> proper# X, proper# U31(X1, X2) -> proper# X2)
(proper# tail X -> proper# X, proper# U31(X1, X2) -> proper# X1)
(proper# tail X -> proper# X, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# tail X -> proper# X, proper# U32(X1, X2) -> proper# X2)
(proper# tail X -> proper# X, proper# U32(X1, X2) -> proper# X1)
(proper# tail X -> proper# X, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# tail X -> proper# X, proper# U21(X1, X2) -> proper# X2)
(proper# tail X -> proper# X, proper# U21(X1, X2) -> proper# X1)
(proper# tail X -> proper# X, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# tail X -> proper# X, proper# U22(X1, X2) -> proper# X2)
(proper# tail X -> proper# X, proper# U22(X1, X2) -> proper# X1)
(proper# tail X -> proper# X, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# tail X -> proper# X, proper# splitAt(X1, X2) -> proper# X2)
(proper# tail X -> proper# X, proper# splitAt(X1, X2) -> proper# X1)
(proper# tail X -> proper# X, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# tail X -> proper# X, proper# snd X -> proper# X)
(proper# tail X -> proper# X, proper# snd X -> snd# proper X)
(proper# tail X -> proper# X, proper# U11(X1, X2, X3) -> proper# X3)
(proper# tail X -> proper# X, proper# U11(X1, X2, X3) -> proper# X2)
(proper# tail X -> proper# X, proper# U11(X1, X2, X3) -> proper# X1)
(proper# tail X -> proper# X, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# tail X -> proper# X, proper# U12(X1, X2, X3) -> proper# X3)
(proper# tail X -> proper# X, proper# U12(X1, X2, X3) -> proper# X2)
(proper# tail X -> proper# X, proper# U12(X1, X2, X3) -> proper# X1)
(proper# tail X -> proper# X, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(top# ok X -> active# X, active# take(X1, X2) -> take#(active X1, X2))
(top# ok X -> active# X, active# take(X1, X2) -> take#(X1, active X2))
(top# ok X -> active# X, active# take(X1, X2) -> active# X2)
(top# ok X -> active# X, active# take(X1, X2) -> active# X1)
(top# ok X -> active# X, active# take(N, XS) -> U81#(tt(), N, XS))
(top# ok X -> active# X, active# tail cons(N, XS) -> U71#(tt(), XS))
(top# ok X -> active# X, active# tail X -> tail# active X)
(top# ok X -> active# X, active# tail X -> active# X)
(top# ok X -> active# X, active# sel(X1, X2) -> sel#(active X1, X2))
(top# ok X -> active# X, active# sel(X1, X2) -> sel#(X1, active X2))
(top# ok X -> active# X, active# sel(X1, X2) -> active# X2)
(top# ok X -> active# X, active# sel(X1, X2) -> active# X1)
(top# ok X -> active# X, active# sel(N, XS) -> U41#(tt(), N, XS))
(top# ok X -> active# X, active# s X -> s# active X)
(top# ok X -> active# X, active# s X -> active# X)
(top# ok X -> active# X, active# natsFrom X -> natsFrom# active X)
(top# ok X -> active# X, active# natsFrom X -> active# X)
(top# ok X -> active# X, active# natsFrom N -> s# N)
(top# ok X -> active# X, active# natsFrom N -> natsFrom# s N)
(top# ok X -> active# X, active# natsFrom N -> cons#(N, natsFrom s N))
(top# ok X -> active# X, active# fst pair(X, Y) -> U21#(tt(), X))
(top# ok X -> active# X, active# fst X -> fst# active X)
(top# ok X -> active# X, active# fst X -> active# X)
(top# ok X -> active# X, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(top# ok X -> active# X, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(top# ok X -> active# X, active# U81(X1, X2, X3) -> active# X1)
(top# ok X -> active# X, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(top# ok X -> active# X, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(top# ok X -> active# X, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(top# ok X -> active# X, active# U82(X1, X2, X3) -> active# X1)
(top# ok X -> active# X, active# U71(tt(), XS) -> U72#(tt(), XS))
(top# ok X -> active# X, active# U71(X1, X2) -> U71#(active X1, X2))
(top# ok X -> active# X, active# U71(X1, X2) -> active# X1)
(top# ok X -> active# X, active# U72(X1, X2) -> U72#(active X1, X2))
(top# ok X -> active# X, active# U72(X1, X2) -> active# X1)
(top# ok X -> active# X, active# cons(X1, X2) -> cons#(active X1, X2))
(top# ok X -> active# X, active# cons(X1, X2) -> active# X1)
(top# ok X -> active# X, active# pair(X1, X2) -> pair#(active X1, X2))
(top# ok X -> active# X, active# pair(X1, X2) -> pair#(X1, active X2))
(top# ok X -> active# X, active# pair(X1, X2) -> active# X2)
(top# ok X -> active# X, active# pair(X1, X2) -> active# X1)
(top# ok X -> active# X, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(top# ok X -> active# X, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(top# ok X -> active# X, active# U64(X1, X2) -> U64#(active X1, X2))
(top# ok X -> active# X, active# U64(X1, X2) -> active# X1)
(top# ok X -> active# X, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(top# ok X -> active# X, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(top# ok X -> active# X, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(top# ok X -> active# X, active# U63(X1, X2, X3, X4) -> active# X1)
(top# ok X -> active# X, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(top# ok X -> active# X, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(top# ok X -> active# X, active# U61(X1, X2, X3, X4) -> active# X1)
(top# ok X -> active# X, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(top# ok X -> active# X, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(top# ok X -> active# X, active# U62(X1, X2, X3, X4) -> active# X1)
(top# ok X -> active# X, active# U51(tt(), Y) -> U52#(tt(), Y))
(top# ok X -> active# X, active# U51(X1, X2) -> U51#(active X1, X2))
(top# ok X -> active# X, active# U51(X1, X2) -> active# X1)
(top# ok X -> active# X, active# U52(X1, X2) -> U52#(active X1, X2))
(top# ok X -> active# X, active# U52(X1, X2) -> active# X1)
(top# ok X -> active# X, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(top# ok X -> active# X, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(top# ok X -> active# X, active# afterNth(X1, X2) -> active# X2)
(top# ok X -> active# X, active# afterNth(X1, X2) -> active# X1)
(top# ok X -> active# X, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(top# ok X -> active# X, active# head cons(N, XS) -> U31#(tt(), N))
(top# ok X -> active# X, active# head X -> head# active X)
(top# ok X -> active# X, active# head X -> active# X)
(top# ok X -> active# X, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(top# ok X -> active# X, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(top# ok X -> active# X, active# U41(X1, X2, X3) -> active# X1)
(top# ok X -> active# X, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(top# ok X -> active# X, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(top# ok X -> active# X, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(top# ok X -> active# X, active# U42(X1, X2, X3) -> active# X1)
(top# ok X -> active# X, active# U31(tt(), N) -> U32#(tt(), N))
(top# ok X -> active# X, active# U31(X1, X2) -> U31#(active X1, X2))
(top# ok X -> active# X, active# U31(X1, X2) -> active# X1)
(top# ok X -> active# X, active# U32(X1, X2) -> U32#(active X1, X2))
(top# ok X -> active# X, active# U32(X1, X2) -> active# X1)
(top# ok X -> active# X, active# U21(tt(), X) -> U22#(tt(), X))
(top# ok X -> active# X, active# U21(X1, X2) -> U21#(active X1, X2))
(top# ok X -> active# X, active# U21(X1, X2) -> active# X1)
(top# ok X -> active# X, active# U22(X1, X2) -> U22#(active X1, X2))
(top# ok X -> active# X, active# U22(X1, X2) -> active# X1)
(top# ok X -> active# X, active# splitAt(0(), XS) -> pair#(nil(), XS))
(top# ok X -> active# X, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(top# ok X -> active# X, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(top# ok X -> active# X, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(top# ok X -> active# X, active# splitAt(X1, X2) -> active# X2)
(top# ok X -> active# X, active# splitAt(X1, X2) -> active# X1)
(top# ok X -> active# X, active# snd pair(X, Y) -> U51#(tt(), Y))
(top# ok X -> active# X, active# snd X -> snd# active X)
(top# ok X -> active# X, active# snd X -> active# X)
(top# ok X -> active# X, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(top# ok X -> active# X, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(top# ok X -> active# X, active# U11(X1, X2, X3) -> active# X1)
(top# ok X -> active# X, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(top# ok X -> active# X, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(top# ok X -> active# X, active# U12(X1, X2, X3) -> active# X1)
(top# ok X -> active# X, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# fst pair(X, Y) -> U21#(tt(), X), U21#(ok X1, ok X2) -> U21#(X1, X2))
(active# fst pair(X, Y) -> U21#(tt(), X), U21#(mark X1, X2) -> U21#(X1, X2))
(active# U22(X1, X2) -> U22#(active X1, X2), U22#(ok X1, ok X2) -> U22#(X1, X2))
(active# U22(X1, X2) -> U22#(active X1, X2), U22#(mark X1, X2) -> U22#(X1, X2))
(active# U32(X1, X2) -> U32#(active X1, X2), U32#(ok X1, ok X2) -> U32#(X1, X2))
(active# U32(X1, X2) -> U32#(active X1, X2), U32#(mark X1, X2) -> U32#(X1, X2))
(active# afterNth(X1, X2) -> afterNth#(active X1, X2), afterNth#(ok X1, ok X2) -> afterNth#(X1, X2))
(active# afterNth(X1, X2) -> afterNth#(active X1, X2), afterNth#(mark X1, X2) -> afterNth#(X1, X2))
(active# afterNth(X1, X2) -> afterNth#(active X1, X2), afterNth#(X1, mark X2) -> afterNth#(X1, X2))
(active# U51(X1, X2) -> U51#(active X1, X2), U51#(ok X1, ok X2) -> U51#(X1, X2))
(active# U51(X1, X2) -> U51#(active X1, X2), U51#(mark X1, X2) -> U51#(X1, X2))
(active# pair(X1, X2) -> pair#(active X1, X2), pair#(ok X1, ok X2) -> pair#(X1, X2))
(active# pair(X1, X2) -> pair#(active X1, X2), pair#(mark X1, X2) -> pair#(X1, X2))
(active# pair(X1, X2) -> pair#(active X1, X2), pair#(X1, mark X2) -> pair#(X1, X2))
(active# U72(X1, X2) -> U72#(active X1, X2), U72#(ok X1, ok X2) -> U72#(X1, X2))
(active# U72(X1, X2) -> U72#(active X1, X2), U72#(mark X1, X2) -> U72#(X1, X2))
(active# sel(X1, X2) -> sel#(active X1, X2), sel#(ok X1, ok X2) -> sel#(X1, X2))
(active# sel(X1, X2) -> sel#(active X1, X2), sel#(mark X1, X2) -> sel#(X1, X2))
(active# sel(X1, X2) -> sel#(active X1, X2), sel#(X1, mark X2) -> sel#(X1, X2))
(splitAt#(X1, mark X2) -> splitAt#(X1, X2), splitAt#(ok X1, ok X2) -> splitAt#(X1, X2))
(splitAt#(X1, mark X2) -> splitAt#(X1, X2), splitAt#(mark X1, X2) -> splitAt#(X1, X2))
(splitAt#(X1, mark X2) -> splitAt#(X1, X2), splitAt#(X1, mark X2) -> splitAt#(X1, X2))
(splitAt#(ok X1, ok X2) -> splitAt#(X1, X2), splitAt#(ok X1, ok X2) -> splitAt#(X1, X2))
(splitAt#(ok X1, ok X2) -> splitAt#(X1, X2), splitAt#(mark X1, X2) -> splitAt#(X1, X2))
(splitAt#(ok X1, ok X2) -> splitAt#(X1, X2), splitAt#(X1, mark X2) -> splitAt#(X1, X2))
(U22#(ok X1, ok X2) -> U22#(X1, X2), U22#(ok X1, ok X2) -> U22#(X1, X2))
(U22#(ok X1, ok X2) -> U22#(X1, X2), U22#(mark X1, X2) -> U22#(X1, X2))
(U21#(ok X1, ok X2) -> U21#(X1, X2), U21#(ok X1, ok X2) -> U21#(X1, X2))
(U21#(ok X1, ok X2) -> U21#(X1, X2), U21#(mark X1, X2) -> U21#(X1, X2))
(U32#(ok X1, ok X2) -> U32#(X1, X2), U32#(ok X1, ok X2) -> U32#(X1, X2))
(U32#(ok X1, ok X2) -> U32#(X1, X2), U32#(mark X1, X2) -> U32#(X1, X2))
(U31#(ok X1, ok X2) -> U31#(X1, X2), U31#(ok X1, ok X2) -> U31#(X1, X2))
(U31#(ok X1, ok X2) -> U31#(X1, X2), U31#(mark X1, X2) -> U31#(X1, X2))
(afterNth#(mark X1, X2) -> afterNth#(X1, X2), afterNth#(ok X1, ok X2) -> afterNth#(X1, X2))
(afterNth#(mark X1, X2) -> afterNth#(X1, X2), afterNth#(mark X1, X2) -> afterNth#(X1, X2))
(afterNth#(mark X1, X2) -> afterNth#(X1, X2), afterNth#(X1, mark X2) -> afterNth#(X1, X2))
(U52#(mark X1, X2) -> U52#(X1, X2), U52#(ok X1, ok X2) -> U52#(X1, X2))
(U52#(mark X1, X2) -> U52#(X1, X2), U52#(mark X1, X2) -> U52#(X1, X2))
(U51#(mark X1, X2) -> U51#(X1, X2), U51#(ok X1, ok X2) -> U51#(X1, X2))
(U51#(mark X1, X2) -> U51#(X1, X2), U51#(mark X1, X2) -> U51#(X1, X2))
(U64#(mark X1, X2) -> U64#(X1, X2), U64#(ok X1, ok X2) -> U64#(X1, X2))
(U64#(mark X1, X2) -> U64#(X1, X2), U64#(mark X1, X2) -> U64#(X1, X2))
(pair#(X1, mark X2) -> pair#(X1, X2), pair#(ok X1, ok X2) -> pair#(X1, X2))
(pair#(X1, mark X2) -> pair#(X1, X2), pair#(mark X1, X2) -> pair#(X1, X2))
(pair#(X1, mark X2) -> pair#(X1, X2), pair#(X1, mark X2) -> pair#(X1, X2))
(pair#(ok X1, ok X2) -> pair#(X1, X2), pair#(ok X1, ok X2) -> pair#(X1, X2))
(pair#(ok X1, ok X2) -> pair#(X1, X2), pair#(mark X1, X2) -> pair#(X1, X2))
(pair#(ok X1, ok X2) -> pair#(X1, X2), pair#(X1, mark X2) -> pair#(X1, X2))
(cons#(ok X1, ok X2) -> cons#(X1, X2), cons#(ok X1, ok X2) -> cons#(X1, X2))
(cons#(ok X1, ok X2) -> cons#(X1, X2), cons#(mark X1, X2) -> cons#(X1, X2))
(U72#(ok X1, ok X2) -> U72#(X1, X2), U72#(ok X1, ok X2) -> U72#(X1, X2))
(U72#(ok X1, ok X2) -> U72#(X1, X2), U72#(mark X1, X2) -> U72#(X1, X2))
(U71#(ok X1, ok X2) -> U71#(X1, X2), U71#(ok X1, ok X2) -> U71#(X1, X2))
(U71#(ok X1, ok X2) -> U71#(X1, X2), U71#(mark X1, X2) -> U71#(X1, X2))
(sel#(mark X1, X2) -> sel#(X1, X2), sel#(ok X1, ok X2) -> sel#(X1, X2))
(sel#(mark X1, X2) -> sel#(X1, X2), sel#(mark X1, X2) -> sel#(X1, X2))
(sel#(mark X1, X2) -> sel#(X1, X2), sel#(X1, mark X2) -> sel#(X1, X2))
(take#(X1, mark X2) -> take#(X1, X2), take#(ok X1, ok X2) -> take#(X1, X2))
(take#(X1, mark X2) -> take#(X1, X2), take#(mark X1, X2) -> take#(X1, X2))
(take#(X1, mark X2) -> take#(X1, X2), take#(X1, mark X2) -> take#(X1, X2))
(take#(ok X1, ok X2) -> take#(X1, X2), take#(ok X1, ok X2) -> take#(X1, X2))
(take#(ok X1, ok X2) -> take#(X1, X2), take#(mark X1, X2) -> take#(X1, X2))
(take#(ok X1, ok X2) -> take#(X1, X2), take#(X1, mark X2) -> take#(X1, X2))
(active# splitAt(X1, X2) -> splitAt#(X1, active X2), splitAt#(ok X1, ok X2) -> splitAt#(X1, X2))
(active# splitAt(X1, X2) -> splitAt#(X1, active X2), splitAt#(mark X1, X2) -> splitAt#(X1, X2))
(active# splitAt(X1, X2) -> splitAt#(X1, active X2), splitAt#(X1, mark X2) -> splitAt#(X1, X2))
(active# pair(X1, X2) -> pair#(X1, active X2), pair#(ok X1, ok X2) -> pair#(X1, X2))
(active# pair(X1, X2) -> pair#(X1, active X2), pair#(mark X1, X2) -> pair#(X1, X2))
(active# pair(X1, X2) -> pair#(X1, active X2), pair#(X1, mark X2) -> pair#(X1, X2))
(active# take(X1, X2) -> take#(X1, active X2), take#(ok X1, ok X2) -> take#(X1, X2))
(active# take(X1, X2) -> take#(X1, active X2), take#(mark X1, X2) -> take#(X1, X2))
(active# take(X1, X2) -> take#(X1, active X2), take#(X1, mark X2) -> take#(X1, X2))
(proper# U22(X1, X2) -> U22#(proper X1, proper X2), U22#(ok X1, ok X2) -> U22#(X1, X2))
(proper# U22(X1, X2) -> U22#(proper X1, proper X2), U22#(mark X1, X2) -> U22#(X1, X2))
(proper# U32(X1, X2) -> U32#(proper X1, proper X2), U32#(ok X1, ok X2) -> U32#(X1, X2))
(proper# U32(X1, X2) -> U32#(proper X1, proper X2), U32#(mark X1, X2) -> U32#(X1, X2))
(proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2), afterNth#(ok X1, ok X2) -> afterNth#(X1, X2))
(proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2), afterNth#(mark X1, X2) -> afterNth#(X1, X2))
(proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2), afterNth#(X1, mark X2) -> afterNth#(X1, X2))
(proper# U51(X1, X2) -> U51#(proper X1, proper X2), U51#(ok X1, ok X2) -> U51#(X1, X2))
(proper# U51(X1, X2) -> U51#(proper X1, proper X2), U51#(mark X1, X2) -> U51#(X1, X2))
(proper# pair(X1, X2) -> pair#(proper X1, proper X2), pair#(ok X1, ok X2) -> pair#(X1, X2))
(proper# pair(X1, X2) -> pair#(proper X1, proper X2), pair#(mark X1, X2) -> pair#(X1, X2))
(proper# pair(X1, X2) -> pair#(proper X1, proper X2), pair#(X1, mark X2) -> pair#(X1, X2))
(proper# U72(X1, X2) -> U72#(proper X1, proper X2), U72#(ok X1, ok X2) -> U72#(X1, X2))
(proper# U72(X1, X2) -> U72#(proper X1, proper X2), U72#(mark X1, X2) -> U72#(X1, X2))
(proper# sel(X1, X2) -> sel#(proper X1, proper X2), sel#(ok X1, ok X2) -> sel#(X1, X2))
(proper# sel(X1, X2) -> sel#(proper X1, proper X2), sel#(mark X1, X2) -> sel#(X1, X2))
(proper# sel(X1, X2) -> sel#(proper X1, proper X2), sel#(X1, mark X2) -> sel#(X1, X2))
(active# natsFrom N -> s# N, s# ok X -> s# X)
(active# natsFrom N -> s# N, s# mark X -> s# X)
(active# U51(tt(), Y) -> U52#(tt(), Y), U52#(ok X1, ok X2) -> U52#(X1, X2))
(active# U51(tt(), Y) -> U52#(tt(), Y), U52#(mark X1, X2) -> U52#(X1, X2))
(active# U42(tt(), N, XS) -> afterNth#(N, XS), afterNth#(ok X1, ok X2) -> afterNth#(X1, X2))
(active# U42(tt(), N, XS) -> afterNth#(N, XS), afterNth#(mark X1, X2) -> afterNth#(X1, X2))
(active# U42(tt(), N, XS) -> afterNth#(N, XS), afterNth#(X1, mark X2) -> afterNth#(X1, X2))
(active# U82(tt(), N, XS) -> splitAt#(N, XS), splitAt#(ok X1, ok X2) -> splitAt#(X1, X2))
(active# U82(tt(), N, XS) -> splitAt#(N, XS), splitAt#(mark X1, X2) -> splitAt#(X1, X2))
(active# U82(tt(), N, XS) -> splitAt#(N, XS), splitAt#(X1, mark X2) -> splitAt#(X1, X2))
(U12#(ok X1, ok X2, ok X3) -> U12#(X1, X2, X3), U12#(ok X1, ok X2, ok X3) -> U12#(X1, X2, X3))
(U12#(ok X1, ok X2, ok X3) -> U12#(X1, X2, X3), U12#(mark X1, X2, X3) -> U12#(X1, X2, X3))
(active# U11(X1, X2, X3) -> U11#(active X1, X2, X3), U11#(ok X1, ok X2, ok X3) -> U11#(X1, X2, X3))
(active# U11(X1, X2, X3) -> U11#(active X1, X2, X3), U11#(mark X1, X2, X3) -> U11#(X1, X2, X3))
(active# U41(X1, X2, X3) -> U41#(active X1, X2, X3), U41#(ok X1, ok X2, ok X3) -> U41#(X1, X2, X3))
(active# U41(X1, X2, X3) -> U41#(active X1, X2, X3), U41#(mark X1, X2, X3) -> U41#(X1, X2, X3))
(active# U81(X1, X2, X3) -> U81#(active X1, X2, X3), U81#(ok X1, ok X2, ok X3) -> U81#(X1, X2, X3))
(active# U81(X1, X2, X3) -> U81#(active X1, X2, X3), U81#(mark X1, X2, X3) -> U81#(X1, X2, X3))
(U11#(ok X1, ok X2, ok X3) -> U11#(X1, X2, X3), U11#(ok X1, ok X2, ok X3) -> U11#(X1, X2, X3))
(U11#(ok X1, ok X2, ok X3) -> U11#(X1, X2, X3), U11#(mark X1, X2, X3) -> U11#(X1, X2, X3))
(U42#(ok X1, ok X2, ok X3) -> U42#(X1, X2, X3), U42#(ok X1, ok X2, ok X3) -> U42#(X1, X2, X3))
(U42#(ok X1, ok X2, ok X3) -> U42#(X1, X2, X3), U42#(mark X1, X2, X3) -> U42#(X1, X2, X3))
(U41#(ok X1, ok X2, ok X3) -> U41#(X1, X2, X3), U41#(ok X1, ok X2, ok X3) -> U41#(X1, X2, X3))
(U41#(ok X1, ok X2, ok X3) -> U41#(X1, X2, X3), U41#(mark X1, X2, X3) -> U41#(X1, X2, X3))
(U82#(ok X1, ok X2, ok X3) -> U82#(X1, X2, X3), U82#(ok X1, ok X2, ok X3) -> U82#(X1, X2, X3))
(U82#(ok X1, ok X2, ok X3) -> U82#(X1, X2, X3), U82#(mark X1, X2, X3) -> U82#(X1, X2, X3))
(U81#(ok X1, ok X2, ok X3) -> U81#(X1, X2, X3), U81#(ok X1, ok X2, ok X3) -> U81#(X1, X2, X3))
(U81#(ok X1, ok X2, ok X3) -> U81#(X1, X2, X3), U81#(mark X1, X2, X3) -> U81#(X1, X2, X3))
(proper# U11(X1, X2, X3) -> proper# X3, proper# take(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X3, proper# take(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X3, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X3, proper# tail X -> proper# X)
(proper# U11(X1, X2, X3) -> proper# X3, proper# tail X -> tail# proper X)
(proper# U11(X1, X2, X3) -> proper# X3, proper# sel(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X3, proper# sel(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X3, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X3, proper# s X -> proper# X)
(proper# U11(X1, X2, X3) -> proper# X3, proper# s X -> s# proper X)
(proper# U11(X1, X2, X3) -> proper# X3, proper# natsFrom X -> proper# X)
(proper# U11(X1, X2, X3) -> proper# X3, proper# natsFrom X -> natsFrom# proper X)
(proper# U11(X1, X2, X3) -> proper# X3, proper# fst X -> proper# X)
(proper# U11(X1, X2, X3) -> proper# X3, proper# fst X -> fst# proper X)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U11(X1, X2, X3) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U11(X1, X2, X3) -> proper# X3, proper# U71(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U71(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X3, proper# U72(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U72(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X3, proper# cons(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X3, proper# cons(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X3, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X3, proper# pair(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X3, proper# pair(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X3, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X3, proper# U64(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U64(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U11(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U11(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U11(X1, X2, X3) -> proper# X3, proper# U51(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U51(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X3, proper# U52(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U52(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X3, proper# afterNth(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X3, proper# afterNth(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X3, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X3, proper# head X -> proper# X)
(proper# U11(X1, X2, X3) -> proper# X3, proper# head X -> head# proper X)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U11(X1, X2, X3) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U11(X1, X2, X3) -> proper# X3, proper# U31(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U31(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X3, proper# U32(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U32(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X3, proper# U21(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U21(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X3, proper# U22(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U22(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X3, proper# splitAt(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X3, proper# splitAt(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X3, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X3, proper# snd X -> proper# X)
(proper# U11(X1, X2, X3) -> proper# X3, proper# snd X -> snd# proper X)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U11(X1, X2, X3) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X3, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U41(X1, X2, X3) -> proper# X3, proper# take(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X3, proper# take(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X3, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X3, proper# tail X -> proper# X)
(proper# U41(X1, X2, X3) -> proper# X3, proper# tail X -> tail# proper X)
(proper# U41(X1, X2, X3) -> proper# X3, proper# sel(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X3, proper# sel(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X3, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X3, proper# s X -> proper# X)
(proper# U41(X1, X2, X3) -> proper# X3, proper# s X -> s# proper X)
(proper# U41(X1, X2, X3) -> proper# X3, proper# natsFrom X -> proper# X)
(proper# U41(X1, X2, X3) -> proper# X3, proper# natsFrom X -> natsFrom# proper X)
(proper# U41(X1, X2, X3) -> proper# X3, proper# fst X -> proper# X)
(proper# U41(X1, X2, X3) -> proper# X3, proper# fst X -> fst# proper X)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U41(X1, X2, X3) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U41(X1, X2, X3) -> proper# X3, proper# U71(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U71(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X3, proper# U72(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U72(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X3, proper# cons(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X3, proper# cons(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X3, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X3, proper# pair(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X3, proper# pair(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X3, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X3, proper# U64(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U64(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U41(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U41(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U41(X1, X2, X3) -> proper# X3, proper# U51(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U51(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X3, proper# U52(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U52(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X3, proper# afterNth(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X3, proper# afterNth(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X3, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X3, proper# head X -> proper# X)
(proper# U41(X1, X2, X3) -> proper# X3, proper# head X -> head# proper X)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U41(X1, X2, X3) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U41(X1, X2, X3) -> proper# X3, proper# U31(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U31(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X3, proper# U32(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U32(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X3, proper# U21(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U21(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X3, proper# U22(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U22(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X3, proper# splitAt(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X3, proper# splitAt(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X3, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X3, proper# snd X -> proper# X)
(proper# U41(X1, X2, X3) -> proper# X3, proper# snd X -> snd# proper X)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U41(X1, X2, X3) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X3, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# take(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# take(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# tail X -> proper# X)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# tail X -> tail# proper X)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# sel(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# sel(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# s X -> proper# X)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# s X -> s# proper X)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# natsFrom X -> proper# X)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# natsFrom X -> natsFrom# proper X)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# fst X -> proper# X)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# fst X -> fst# proper X)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U71(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U71(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U72(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U72(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# cons(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# cons(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# pair(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# pair(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U64(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U64(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U51(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U51(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U52(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U52(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# afterNth(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# afterNth(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# head X -> proper# X)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# head X -> head# proper X)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U31(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U31(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U32(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U32(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U21(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U21(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U22(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U22(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# splitAt(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# splitAt(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# snd X -> proper# X)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# snd X -> snd# proper X)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X3, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U82(X1, X2, X3) -> proper# X3, proper# take(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X3, proper# take(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X3, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X3, proper# tail X -> proper# X)
(proper# U82(X1, X2, X3) -> proper# X3, proper# tail X -> tail# proper X)
(proper# U82(X1, X2, X3) -> proper# X3, proper# sel(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X3, proper# sel(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X3, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X3, proper# s X -> proper# X)
(proper# U82(X1, X2, X3) -> proper# X3, proper# s X -> s# proper X)
(proper# U82(X1, X2, X3) -> proper# X3, proper# natsFrom X -> proper# X)
(proper# U82(X1, X2, X3) -> proper# X3, proper# natsFrom X -> natsFrom# proper X)
(proper# U82(X1, X2, X3) -> proper# X3, proper# fst X -> proper# X)
(proper# U82(X1, X2, X3) -> proper# X3, proper# fst X -> fst# proper X)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U82(X1, X2, X3) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U82(X1, X2, X3) -> proper# X3, proper# U71(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U71(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X3, proper# U72(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U72(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X3, proper# cons(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X3, proper# cons(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X3, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X3, proper# pair(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X3, proper# pair(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X3, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X3, proper# U64(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U64(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U82(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U82(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U82(X1, X2, X3) -> proper# X3, proper# U51(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U51(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X3, proper# U52(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U52(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X3, proper# afterNth(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X3, proper# afterNth(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X3, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X3, proper# head X -> proper# X)
(proper# U82(X1, X2, X3) -> proper# X3, proper# head X -> head# proper X)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U82(X1, X2, X3) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U82(X1, X2, X3) -> proper# X3, proper# U31(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U31(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X3, proper# U32(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U32(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X3, proper# U21(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U21(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X3, proper# U22(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U22(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X3, proper# splitAt(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X3, proper# splitAt(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X3, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X3, proper# snd X -> proper# X)
(proper# U82(X1, X2, X3) -> proper# X3, proper# snd X -> snd# proper X)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U82(X1, X2, X3) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X3, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(active# natsFrom N -> cons#(N, natsFrom s N), cons#(ok X1, ok X2) -> cons#(X1, X2))
(active# natsFrom N -> cons#(N, natsFrom s N), cons#(mark X1, X2) -> cons#(X1, X2))
(active# U11(tt(), N, XS) -> U12#(tt(), N, XS), U12#(ok X1, ok X2, ok X3) -> U12#(X1, X2, X3))
(active# U11(tt(), N, XS) -> U12#(tt(), N, XS), U12#(mark X1, X2, X3) -> U12#(X1, X2, X3))
(active# afterNth(N, XS) -> U11#(tt(), N, XS), U11#(ok X1, ok X2, ok X3) -> U11#(X1, X2, X3))
(active# afterNth(N, XS) -> U11#(tt(), N, XS), U11#(mark X1, X2, X3) -> U11#(X1, X2, X3))
(active# U81(tt(), N, XS) -> U82#(tt(), N, XS), U82#(ok X1, ok X2, ok X3) -> U82#(X1, X2, X3))
(active# U81(tt(), N, XS) -> U82#(tt(), N, XS), U82#(mark X1, X2, X3) -> U82#(X1, X2, X3))
(active# take(N, XS) -> U81#(tt(), N, XS), U81#(ok X1, ok X2, ok X3) -> U81#(X1, X2, X3))
(active# take(N, XS) -> U81#(tt(), N, XS), U81#(mark X1, X2, X3) -> U81#(X1, X2, X3))
(active# sel(N, XS) -> U41#(tt(), N, XS), U41#(mark X1, X2, X3) -> U41#(X1, X2, X3))
(active# sel(N, XS) -> U41#(tt(), N, XS), U41#(ok X1, ok X2, ok X3) -> U41#(X1, X2, X3))
(active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X), U64#(mark X1, X2) -> U64#(X1, X2))
(active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X), U64#(ok X1, ok X2) -> U64#(X1, X2))
(active# U41(tt(), N, XS) -> U42#(tt(), N, XS), U42#(mark X1, X2, X3) -> U42#(X1, X2, X3))
(active# U41(tt(), N, XS) -> U42#(tt(), N, XS), U42#(ok X1, ok X2, ok X3) -> U42#(X1, X2, X3))
(active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS), pair#(X1, mark X2) -> pair#(X1, X2))
(active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS), pair#(mark X1, X2) -> pair#(X1, X2))
(active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS), pair#(ok X1, ok X2) -> pair#(X1, X2))
(proper# U81(X1, X2, X3) -> proper# X3, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U81(X1, X2, X3) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U81(X1, X2, X3) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X3, proper# snd X -> snd# proper X)
(proper# U81(X1, X2, X3) -> proper# X3, proper# snd X -> proper# X)
(proper# U81(X1, X2, X3) -> proper# X3, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X3, proper# splitAt(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X3, proper# splitAt(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X3, proper# U22(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U22(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X3, proper# U21(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U21(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X3, proper# U32(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U32(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X3, proper# U31(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U31(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U81(X1, X2, X3) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U81(X1, X2, X3) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X3, proper# head X -> head# proper X)
(proper# U81(X1, X2, X3) -> proper# X3, proper# head X -> proper# X)
(proper# U81(X1, X2, X3) -> proper# X3, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X3, proper# afterNth(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X3, proper# afterNth(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X3, proper# U52(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U52(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X3, proper# U51(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U51(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U81(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U81(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U81(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X3, proper# U64(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U64(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X3, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X3, proper# pair(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X3, proper# pair(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X3, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X3, proper# cons(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X3, proper# cons(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X3, proper# U72(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U72(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X3, proper# U71(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U71(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U81(X1, X2, X3) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U81(X1, X2, X3) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X3, proper# fst X -> fst# proper X)
(proper# U81(X1, X2, X3) -> proper# X3, proper# fst X -> proper# X)
(proper# U81(X1, X2, X3) -> proper# X3, proper# natsFrom X -> natsFrom# proper X)
(proper# U81(X1, X2, X3) -> proper# X3, proper# natsFrom X -> proper# X)
(proper# U81(X1, X2, X3) -> proper# X3, proper# s X -> s# proper X)
(proper# U81(X1, X2, X3) -> proper# X3, proper# s X -> proper# X)
(proper# U81(X1, X2, X3) -> proper# X3, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X3, proper# sel(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X3, proper# sel(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X3, proper# tail X -> tail# proper X)
(proper# U81(X1, X2, X3) -> proper# X3, proper# tail X -> proper# X)
(proper# U81(X1, X2, X3) -> proper# X3, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X3, proper# take(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X3, proper# take(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# snd X -> snd# proper X)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# snd X -> proper# X)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# splitAt(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# splitAt(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U22(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U22(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U21(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U21(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U32(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U32(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U31(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U31(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# head X -> head# proper X)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# head X -> proper# X)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# afterNth(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# afterNth(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U52(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U52(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U51(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U51(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U64(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U64(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# pair(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# pair(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# cons(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# cons(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U72(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U72(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U71(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U71(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# fst X -> fst# proper X)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# fst X -> proper# X)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# natsFrom X -> natsFrom# proper X)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# natsFrom X -> proper# X)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# s X -> s# proper X)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# s X -> proper# X)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# sel(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# sel(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# tail X -> tail# proper X)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# tail X -> proper# X)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# take(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X3, proper# take(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# snd X -> snd# proper X)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# snd X -> proper# X)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# splitAt(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# splitAt(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U22(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U22(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U21(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U21(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U32(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U32(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U31(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U31(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# head X -> head# proper X)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# head X -> proper# X)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# afterNth(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# afterNth(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U52(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U52(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U51(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U51(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U64(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U64(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# pair(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# pair(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# cons(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# cons(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U72(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U72(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U71(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U71(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# fst X -> fst# proper X)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# fst X -> proper# X)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# natsFrom X -> natsFrom# proper X)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# natsFrom X -> proper# X)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# s X -> s# proper X)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# s X -> proper# X)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# sel(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# sel(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# tail X -> tail# proper X)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# tail X -> proper# X)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# take(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X3, proper# take(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U42(X1, X2, X3) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U42(X1, X2, X3) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X3, proper# snd X -> snd# proper X)
(proper# U42(X1, X2, X3) -> proper# X3, proper# snd X -> proper# X)
(proper# U42(X1, X2, X3) -> proper# X3, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X3, proper# splitAt(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X3, proper# splitAt(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X3, proper# U22(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U22(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X3, proper# U21(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U21(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X3, proper# U32(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U32(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X3, proper# U31(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U31(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U42(X1, X2, X3) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U42(X1, X2, X3) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X3, proper# head X -> head# proper X)
(proper# U42(X1, X2, X3) -> proper# X3, proper# head X -> proper# X)
(proper# U42(X1, X2, X3) -> proper# X3, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X3, proper# afterNth(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X3, proper# afterNth(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X3, proper# U52(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U52(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X3, proper# U51(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U51(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U42(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U42(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U42(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X3, proper# U64(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U64(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X3, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X3, proper# pair(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X3, proper# pair(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X3, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X3, proper# cons(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X3, proper# cons(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X3, proper# U72(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U72(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X3, proper# U71(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U71(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U42(X1, X2, X3) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U42(X1, X2, X3) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X3, proper# fst X -> fst# proper X)
(proper# U42(X1, X2, X3) -> proper# X3, proper# fst X -> proper# X)
(proper# U42(X1, X2, X3) -> proper# X3, proper# natsFrom X -> natsFrom# proper X)
(proper# U42(X1, X2, X3) -> proper# X3, proper# natsFrom X -> proper# X)
(proper# U42(X1, X2, X3) -> proper# X3, proper# s X -> s# proper X)
(proper# U42(X1, X2, X3) -> proper# X3, proper# s X -> proper# X)
(proper# U42(X1, X2, X3) -> proper# X3, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X3, proper# sel(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X3, proper# sel(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X3, proper# tail X -> tail# proper X)
(proper# U42(X1, X2, X3) -> proper# X3, proper# tail X -> proper# X)
(proper# U42(X1, X2, X3) -> proper# X3, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X3, proper# take(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X3, proper# take(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U12(X1, X2, X3) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U12(X1, X2, X3) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U12(X1, X2, X3) -> proper# X3, proper# snd X -> snd# proper X)
(proper# U12(X1, X2, X3) -> proper# X3, proper# snd X -> proper# X)
(proper# U12(X1, X2, X3) -> proper# X3, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X3, proper# splitAt(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X3, proper# splitAt(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X3, proper# U22(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U22(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X3, proper# U21(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U21(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X3, proper# U32(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U32(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X3, proper# U31(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U31(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U12(X1, X2, X3) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U12(X1, X2, X3) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U12(X1, X2, X3) -> proper# X3, proper# head X -> head# proper X)
(proper# U12(X1, X2, X3) -> proper# X3, proper# head X -> proper# X)
(proper# U12(X1, X2, X3) -> proper# X3, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X3, proper# afterNth(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X3, proper# afterNth(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X3, proper# U52(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U52(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X3, proper# U51(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U51(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U12(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U12(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U12(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X3, proper# U64(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U64(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X3, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X3, proper# pair(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X3, proper# pair(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X3, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X3, proper# cons(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X3, proper# cons(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X3, proper# U72(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U72(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X3, proper# U71(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U71(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U12(X1, X2, X3) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U12(X1, X2, X3) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X3, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U12(X1, X2, X3) -> proper# X3, proper# fst X -> fst# proper X)
(proper# U12(X1, X2, X3) -> proper# X3, proper# fst X -> proper# X)
(proper# U12(X1, X2, X3) -> proper# X3, proper# natsFrom X -> natsFrom# proper X)
(proper# U12(X1, X2, X3) -> proper# X3, proper# natsFrom X -> proper# X)
(proper# U12(X1, X2, X3) -> proper# X3, proper# s X -> s# proper X)
(proper# U12(X1, X2, X3) -> proper# X3, proper# s X -> proper# X)
(proper# U12(X1, X2, X3) -> proper# X3, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X3, proper# sel(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X3, proper# sel(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X3, proper# tail X -> tail# proper X)
(proper# U12(X1, X2, X3) -> proper# X3, proper# tail X -> proper# X)
(proper# U12(X1, X2, X3) -> proper# X3, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X3, proper# take(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X3, proper# take(X1, X2) -> proper# X2)
(U81#(mark X1, X2, X3) -> U81#(X1, X2, X3), U81#(mark X1, X2, X3) -> U81#(X1, X2, X3))
(U81#(mark X1, X2, X3) -> U81#(X1, X2, X3), U81#(ok X1, ok X2, ok X3) -> U81#(X1, X2, X3))
(U82#(mark X1, X2, X3) -> U82#(X1, X2, X3), U82#(mark X1, X2, X3) -> U82#(X1, X2, X3))
(U82#(mark X1, X2, X3) -> U82#(X1, X2, X3), U82#(ok X1, ok X2, ok X3) -> U82#(X1, X2, X3))
(U41#(mark X1, X2, X3) -> U41#(X1, X2, X3), U41#(mark X1, X2, X3) -> U41#(X1, X2, X3))
(U41#(mark X1, X2, X3) -> U41#(X1, X2, X3), U41#(ok X1, ok X2, ok X3) -> U41#(X1, X2, X3))
(U42#(mark X1, X2, X3) -> U42#(X1, X2, X3), U42#(mark X1, X2, X3) -> U42#(X1, X2, X3))
(U42#(mark X1, X2, X3) -> U42#(X1, X2, X3), U42#(ok X1, ok X2, ok X3) -> U42#(X1, X2, X3))
(U11#(mark X1, X2, X3) -> U11#(X1, X2, X3), U11#(mark X1, X2, X3) -> U11#(X1, X2, X3))
(U11#(mark X1, X2, X3) -> U11#(X1, X2, X3), U11#(ok X1, ok X2, ok X3) -> U11#(X1, X2, X3))
(active# U82(X1, X2, X3) -> U82#(active X1, X2, X3), U82#(mark X1, X2, X3) -> U82#(X1, X2, X3))
(active# U82(X1, X2, X3) -> U82#(active X1, X2, X3), U82#(ok X1, ok X2, ok X3) -> U82#(X1, X2, X3))
(active# U42(X1, X2, X3) -> U42#(active X1, X2, X3), U42#(mark X1, X2, X3) -> U42#(X1, X2, X3))
(active# U42(X1, X2, X3) -> U42#(active X1, X2, X3), U42#(ok X1, ok X2, ok X3) -> U42#(X1, X2, X3))
(active# U12(X1, X2, X3) -> U12#(active X1, X2, X3), U12#(mark X1, X2, X3) -> U12#(X1, X2, X3))
(active# U12(X1, X2, X3) -> U12#(active X1, X2, X3), U12#(ok X1, ok X2, ok X3) -> U12#(X1, X2, X3))
(U12#(mark X1, X2, X3) -> U12#(X1, X2, X3), U12#(mark X1, X2, X3) -> U12#(X1, X2, X3))
(U12#(mark X1, X2, X3) -> U12#(X1, X2, X3), U12#(ok X1, ok X2, ok X3) -> U12#(X1, X2, X3))
(active# U63(tt(), N, X, XS) -> splitAt#(N, XS), splitAt#(X1, mark X2) -> splitAt#(X1, X2))
(active# U63(tt(), N, X, XS) -> splitAt#(N, XS), splitAt#(mark X1, X2) -> splitAt#(X1, X2))
(active# U63(tt(), N, X, XS) -> splitAt#(N, XS), splitAt#(ok X1, ok X2) -> splitAt#(X1, X2))
(active# U12(tt(), N, XS) -> splitAt#(N, XS), splitAt#(X1, mark X2) -> splitAt#(X1, X2))
(active# U12(tt(), N, XS) -> splitAt#(N, XS), splitAt#(mark X1, X2) -> splitAt#(X1, X2))
(active# U12(tt(), N, XS) -> splitAt#(N, XS), splitAt#(ok X1, ok X2) -> splitAt#(X1, X2))
(active# snd pair(X, Y) -> U51#(tt(), Y), U51#(mark X1, X2) -> U51#(X1, X2))
(active# snd pair(X, Y) -> U51#(tt(), Y), U51#(ok X1, ok X2) -> U51#(X1, X2))
(proper# take(X1, X2) -> take#(proper X1, proper X2), take#(X1, mark X2) -> take#(X1, X2))
(proper# take(X1, X2) -> take#(proper X1, proper X2), take#(mark X1, X2) -> take#(X1, X2))
(proper# take(X1, X2) -> take#(proper X1, proper X2), take#(ok X1, ok X2) -> take#(X1, X2))
(proper# U71(X1, X2) -> U71#(proper X1, proper X2), U71#(mark X1, X2) -> U71#(X1, X2))
(proper# U71(X1, X2) -> U71#(proper X1, proper X2), U71#(ok X1, ok X2) -> U71#(X1, X2))
(proper# cons(X1, X2) -> cons#(proper X1, proper X2), cons#(mark X1, X2) -> cons#(X1, X2))
(proper# cons(X1, X2) -> cons#(proper X1, proper X2), cons#(ok X1, ok X2) -> cons#(X1, X2))
(proper# U64(X1, X2) -> U64#(proper X1, proper X2), U64#(mark X1, X2) -> U64#(X1, X2))
(proper# U64(X1, X2) -> U64#(proper X1, proper X2), U64#(ok X1, ok X2) -> U64#(X1, X2))
(proper# U52(X1, X2) -> U52#(proper X1, proper X2), U52#(mark X1, X2) -> U52#(X1, X2))
(proper# U52(X1, X2) -> U52#(proper X1, proper X2), U52#(ok X1, ok X2) -> U52#(X1, X2))
(proper# U31(X1, X2) -> U31#(proper X1, proper X2), U31#(mark X1, X2) -> U31#(X1, X2))
(proper# U31(X1, X2) -> U31#(proper X1, proper X2), U31#(ok X1, ok X2) -> U31#(X1, X2))
(proper# U21(X1, X2) -> U21#(proper X1, proper X2), U21#(mark X1, X2) -> U21#(X1, X2))
(proper# U21(X1, X2) -> U21#(proper X1, proper X2), U21#(ok X1, ok X2) -> U21#(X1, X2))
(proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2), splitAt#(X1, mark X2) -> splitAt#(X1, X2))
(proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2), splitAt#(mark X1, X2) -> splitAt#(X1, X2))
(proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2), splitAt#(ok X1, ok X2) -> splitAt#(X1, X2))
(active# sel(X1, X2) -> sel#(X1, active X2), sel#(X1, mark X2) -> sel#(X1, X2))
(active# sel(X1, X2) -> sel#(X1, active X2), sel#(mark X1, X2) -> sel#(X1, X2))
(active# sel(X1, X2) -> sel#(X1, active X2), sel#(ok X1, ok X2) -> sel#(X1, X2))
(active# afterNth(X1, X2) -> afterNth#(X1, active X2), afterNth#(X1, mark X2) -> afterNth#(X1, X2))
(active# afterNth(X1, X2) -> afterNth#(X1, active X2), afterNth#(mark X1, X2) -> afterNth#(X1, X2))
(active# afterNth(X1, X2) -> afterNth#(X1, active X2), afterNth#(ok X1, ok X2) -> afterNth#(X1, X2))
(active# U64(pair(YS, ZS), X) -> cons#(X, YS), cons#(mark X1, X2) -> cons#(X1, X2))
(active# U64(pair(YS, ZS), X) -> cons#(X, YS), cons#(ok X1, ok X2) -> cons#(X1, X2))
(take#(mark X1, X2) -> take#(X1, X2), take#(X1, mark X2) -> take#(X1, X2))
(take#(mark X1, X2) -> take#(X1, X2), take#(mark X1, X2) -> take#(X1, X2))
(take#(mark X1, X2) -> take#(X1, X2), take#(ok X1, ok X2) -> take#(X1, X2))
(sel#(ok X1, ok X2) -> sel#(X1, X2), sel#(X1, mark X2) -> sel#(X1, X2))
(sel#(ok X1, ok X2) -> sel#(X1, X2), sel#(mark X1, X2) -> sel#(X1, X2))
(sel#(ok X1, ok X2) -> sel#(X1, X2), sel#(ok X1, ok X2) -> sel#(X1, X2))
(sel#(X1, mark X2) -> sel#(X1, X2), sel#(X1, mark X2) -> sel#(X1, X2))
(sel#(X1, mark X2) -> sel#(X1, X2), sel#(mark X1, X2) -> sel#(X1, X2))
(sel#(X1, mark X2) -> sel#(X1, X2), sel#(ok X1, ok X2) -> sel#(X1, X2))
(U71#(mark X1, X2) -> U71#(X1, X2), U71#(mark X1, X2) -> U71#(X1, X2))
(U71#(mark X1, X2) -> U71#(X1, X2), U71#(ok X1, ok X2) -> U71#(X1, X2))
(U72#(mark X1, X2) -> U72#(X1, X2), U72#(mark X1, X2) -> U72#(X1, X2))
(U72#(mark X1, X2) -> U72#(X1, X2), U72#(ok X1, ok X2) -> U72#(X1, X2))
(cons#(mark X1, X2) -> cons#(X1, X2), cons#(mark X1, X2) -> cons#(X1, X2))
(cons#(mark X1, X2) -> cons#(X1, X2), cons#(ok X1, ok X2) -> cons#(X1, X2))
(pair#(mark X1, X2) -> pair#(X1, X2), pair#(X1, mark X2) -> pair#(X1, X2))
(pair#(mark X1, X2) -> pair#(X1, X2), pair#(mark X1, X2) -> pair#(X1, X2))
(pair#(mark X1, X2) -> pair#(X1, X2), pair#(ok X1, ok X2) -> pair#(X1, X2))
(U64#(ok X1, ok X2) -> U64#(X1, X2), U64#(mark X1, X2) -> U64#(X1, X2))
(U64#(ok X1, ok X2) -> U64#(X1, X2), U64#(ok X1, ok X2) -> U64#(X1, X2))
(U51#(ok X1, ok X2) -> U51#(X1, X2), U51#(mark X1, X2) -> U51#(X1, X2))
(U51#(ok X1, ok X2) -> U51#(X1, X2), U51#(ok X1, ok X2) -> U51#(X1, X2))
(U52#(ok X1, ok X2) -> U52#(X1, X2), U52#(mark X1, X2) -> U52#(X1, X2))
(U52#(ok X1, ok X2) -> U52#(X1, X2), U52#(ok X1, ok X2) -> U52#(X1, X2))
(afterNth#(ok X1, ok X2) -> afterNth#(X1, X2), afterNth#(X1, mark X2) -> afterNth#(X1, X2))
(afterNth#(ok X1, ok X2) -> afterNth#(X1, X2), afterNth#(mark X1, X2) -> afterNth#(X1, X2))
(afterNth#(ok X1, ok X2) -> afterNth#(X1, X2), afterNth#(ok X1, ok X2) -> afterNth#(X1, X2))
(afterNth#(X1, mark X2) -> afterNth#(X1, X2), afterNth#(X1, mark X2) -> afterNth#(X1, X2))
(afterNth#(X1, mark X2) -> afterNth#(X1, X2), afterNth#(mark X1, X2) -> afterNth#(X1, X2))
(afterNth#(X1, mark X2) -> afterNth#(X1, X2), afterNth#(ok X1, ok X2) -> afterNth#(X1, X2))
(U31#(mark X1, X2) -> U31#(X1, X2), U31#(mark X1, X2) -> U31#(X1, X2))
(U31#(mark X1, X2) -> U31#(X1, X2), U31#(ok X1, ok X2) -> U31#(X1, X2))
(U32#(mark X1, X2) -> U32#(X1, X2), U32#(mark X1, X2) -> U32#(X1, X2))
(U32#(mark X1, X2) -> U32#(X1, X2), U32#(ok X1, ok X2) -> U32#(X1, X2))
(U21#(mark X1, X2) -> U21#(X1, X2), U21#(mark X1, X2) -> U21#(X1, X2))
(U21#(mark X1, X2) -> U21#(X1, X2), U21#(ok X1, ok X2) -> U21#(X1, X2))
(U22#(mark X1, X2) -> U22#(X1, X2), U22#(mark X1, X2) -> U22#(X1, X2))
(U22#(mark X1, X2) -> U22#(X1, X2), U22#(ok X1, ok X2) -> U22#(X1, X2))
(splitAt#(mark X1, X2) -> splitAt#(X1, X2), splitAt#(X1, mark X2) -> splitAt#(X1, X2))
(splitAt#(mark X1, X2) -> splitAt#(X1, X2), splitAt#(mark X1, X2) -> splitAt#(X1, X2))
(splitAt#(mark X1, X2) -> splitAt#(X1, X2), splitAt#(ok X1, ok X2) -> splitAt#(X1, X2))
(active# take(X1, X2) -> take#(active X1, X2), take#(X1, mark X2) -> take#(X1, X2))
(active# take(X1, X2) -> take#(active X1, X2), take#(mark X1, X2) -> take#(X1, X2))
(active# take(X1, X2) -> take#(active X1, X2), take#(ok X1, ok X2) -> take#(X1, X2))
(active# U71(X1, X2) -> U71#(active X1, X2), U71#(mark X1, X2) -> U71#(X1, X2))
(active# U71(X1, X2) -> U71#(active X1, X2), U71#(ok X1, ok X2) -> U71#(X1, X2))
(active# cons(X1, X2) -> cons#(active X1, X2), cons#(mark X1, X2) -> cons#(X1, X2))
(active# cons(X1, X2) -> cons#(active X1, X2), cons#(ok X1, ok X2) -> cons#(X1, X2))
(active# U64(X1, X2) -> U64#(active X1, X2), U64#(mark X1, X2) -> U64#(X1, X2))
(active# U64(X1, X2) -> U64#(active X1, X2), U64#(ok X1, ok X2) -> U64#(X1, X2))
(active# U52(X1, X2) -> U52#(active X1, X2), U52#(mark X1, X2) -> U52#(X1, X2))
(active# U52(X1, X2) -> U52#(active X1, X2), U52#(ok X1, ok X2) -> U52#(X1, X2))
(active# U31(X1, X2) -> U31#(active X1, X2), U31#(mark X1, X2) -> U31#(X1, X2))
(active# U31(X1, X2) -> U31#(active X1, X2), U31#(ok X1, ok X2) -> U31#(X1, X2))
(active# U21(X1, X2) -> U21#(active X1, X2), U21#(mark X1, X2) -> U21#(X1, X2))
(active# U21(X1, X2) -> U21#(active X1, X2), U21#(ok X1, ok X2) -> U21#(X1, X2))
(active# splitAt(X1, X2) -> splitAt#(active X1, X2), splitAt#(X1, mark X2) -> splitAt#(X1, X2))
(active# splitAt(X1, X2) -> splitAt#(active X1, X2), splitAt#(mark X1, X2) -> splitAt#(X1, X2))
(active# splitAt(X1, X2) -> splitAt#(active X1, X2), splitAt#(ok X1, ok X2) -> splitAt#(X1, X2))
(active# U21(tt(), X) -> U22#(tt(), X), U22#(mark X1, X2) -> U22#(X1, X2))
(active# U21(tt(), X) -> U22#(tt(), X), U22#(ok X1, ok X2) -> U22#(X1, X2))
(top# mark X -> proper# X, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(top# mark X -> proper# X, proper# U12(X1, X2, X3) -> proper# X1)
(top# mark X -> proper# X, proper# U12(X1, X2, X3) -> proper# X2)
(top# mark X -> proper# X, proper# U12(X1, X2, X3) -> proper# X3)
(top# mark X -> proper# X, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(top# mark X -> proper# X, proper# U11(X1, X2, X3) -> proper# X1)
(top# mark X -> proper# X, proper# U11(X1, X2, X3) -> proper# X2)
(top# mark X -> proper# X, proper# U11(X1, X2, X3) -> proper# X3)
(top# mark X -> proper# X, proper# snd X -> snd# proper X)
(top# mark X -> proper# X, proper# snd X -> proper# X)
(top# mark X -> proper# X, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(top# mark X -> proper# X, proper# splitAt(X1, X2) -> proper# X1)
(top# mark X -> proper# X, proper# splitAt(X1, X2) -> proper# X2)
(top# mark X -> proper# X, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(top# mark X -> proper# X, proper# U22(X1, X2) -> proper# X1)
(top# mark X -> proper# X, proper# U22(X1, X2) -> proper# X2)
(top# mark X -> proper# X, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(top# mark X -> proper# X, proper# U21(X1, X2) -> proper# X1)
(top# mark X -> proper# X, proper# U21(X1, X2) -> proper# X2)
(top# mark X -> proper# X, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(top# mark X -> proper# X, proper# U32(X1, X2) -> proper# X1)
(top# mark X -> proper# X, proper# U32(X1, X2) -> proper# X2)
(top# mark X -> proper# X, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(top# mark X -> proper# X, proper# U31(X1, X2) -> proper# X1)
(top# mark X -> proper# X, proper# U31(X1, X2) -> proper# X2)
(top# mark X -> proper# X, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(top# mark X -> proper# X, proper# U42(X1, X2, X3) -> proper# X1)
(top# mark X -> proper# X, proper# U42(X1, X2, X3) -> proper# X2)
(top# mark X -> proper# X, proper# U42(X1, X2, X3) -> proper# X3)
(top# mark X -> proper# X, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(top# mark X -> proper# X, proper# U41(X1, X2, X3) -> proper# X1)
(top# mark X -> proper# X, proper# U41(X1, X2, X3) -> proper# X2)
(top# mark X -> proper# X, proper# U41(X1, X2, X3) -> proper# X3)
(top# mark X -> proper# X, proper# head X -> head# proper X)
(top# mark X -> proper# X, proper# head X -> proper# X)
(top# mark X -> proper# X, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(top# mark X -> proper# X, proper# afterNth(X1, X2) -> proper# X1)
(top# mark X -> proper# X, proper# afterNth(X1, X2) -> proper# X2)
(top# mark X -> proper# X, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(top# mark X -> proper# X, proper# U52(X1, X2) -> proper# X1)
(top# mark X -> proper# X, proper# U52(X1, X2) -> proper# X2)
(top# mark X -> proper# X, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(top# mark X -> proper# X, proper# U51(X1, X2) -> proper# X1)
(top# mark X -> proper# X, proper# U51(X1, X2) -> proper# X2)
(top# mark X -> proper# X, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(top# mark X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X1)
(top# mark X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X2)
(top# mark X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X3)
(top# mark X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X4)
(top# mark X -> proper# X, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(top# mark X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X1)
(top# mark X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X2)
(top# mark X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X3)
(top# mark X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X4)
(top# mark X -> proper# X, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(top# mark X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X1)
(top# mark X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X2)
(top# mark X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X3)
(top# mark X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X4)
(top# mark X -> proper# X, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(top# mark X -> proper# X, proper# U64(X1, X2) -> proper# X1)
(top# mark X -> proper# X, proper# U64(X1, X2) -> proper# X2)
(top# mark X -> proper# X, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(top# mark X -> proper# X, proper# pair(X1, X2) -> proper# X1)
(top# mark X -> proper# X, proper# pair(X1, X2) -> proper# X2)
(top# mark X -> proper# X, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(top# mark X -> proper# X, proper# cons(X1, X2) -> proper# X1)
(top# mark X -> proper# X, proper# cons(X1, X2) -> proper# X2)
(top# mark X -> proper# X, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(top# mark X -> proper# X, proper# U72(X1, X2) -> proper# X1)
(top# mark X -> proper# X, proper# U72(X1, X2) -> proper# X2)
(top# mark X -> proper# X, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(top# mark X -> proper# X, proper# U71(X1, X2) -> proper# X1)
(top# mark X -> proper# X, proper# U71(X1, X2) -> proper# X2)
(top# mark X -> proper# X, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(top# mark X -> proper# X, proper# U82(X1, X2, X3) -> proper# X1)
(top# mark X -> proper# X, proper# U82(X1, X2, X3) -> proper# X2)
(top# mark X -> proper# X, proper# U82(X1, X2, X3) -> proper# X3)
(top# mark X -> proper# X, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(top# mark X -> proper# X, proper# U81(X1, X2, X3) -> proper# X1)
(top# mark X -> proper# X, proper# U81(X1, X2, X3) -> proper# X2)
(top# mark X -> proper# X, proper# U81(X1, X2, X3) -> proper# X3)
(top# mark X -> proper# X, proper# fst X -> fst# proper X)
(top# mark X -> proper# X, proper# fst X -> proper# X)
(top# mark X -> proper# X, proper# natsFrom X -> natsFrom# proper X)
(top# mark X -> proper# X, proper# natsFrom X -> proper# X)
(top# mark X -> proper# X, proper# s X -> s# proper X)
(top# mark X -> proper# X, proper# s X -> proper# X)
(top# mark X -> proper# X, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(top# mark X -> proper# X, proper# sel(X1, X2) -> proper# X1)
(top# mark X -> proper# X, proper# sel(X1, X2) -> proper# X2)
(top# mark X -> proper# X, proper# tail X -> tail# proper X)
(top# mark X -> proper# X, proper# tail X -> proper# X)
(top# mark X -> proper# X, proper# take(X1, X2) -> take#(proper X1, proper X2))
(top# mark X -> proper# X, proper# take(X1, X2) -> proper# X1)
(top# mark X -> proper# X, proper# take(X1, X2) -> proper# X2)
(proper# s X -> proper# X, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# s X -> proper# X, proper# U12(X1, X2, X3) -> proper# X1)
(proper# s X -> proper# X, proper# U12(X1, X2, X3) -> proper# X2)
(proper# s X -> proper# X, proper# U12(X1, X2, X3) -> proper# X3)
(proper# s X -> proper# X, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# s X -> proper# X, proper# U11(X1, X2, X3) -> proper# X1)
(proper# s X -> proper# X, proper# U11(X1, X2, X3) -> proper# X2)
(proper# s X -> proper# X, proper# U11(X1, X2, X3) -> proper# X3)
(proper# s X -> proper# X, proper# snd X -> snd# proper X)
(proper# s X -> proper# X, proper# snd X -> proper# X)
(proper# s X -> proper# X, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# s X -> proper# X, proper# splitAt(X1, X2) -> proper# X1)
(proper# s X -> proper# X, proper# splitAt(X1, X2) -> proper# X2)
(proper# s X -> proper# X, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# s X -> proper# X, proper# U22(X1, X2) -> proper# X1)
(proper# s X -> proper# X, proper# U22(X1, X2) -> proper# X2)
(proper# s X -> proper# X, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# s X -> proper# X, proper# U21(X1, X2) -> proper# X1)
(proper# s X -> proper# X, proper# U21(X1, X2) -> proper# X2)
(proper# s X -> proper# X, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# s X -> proper# X, proper# U32(X1, X2) -> proper# X1)
(proper# s X -> proper# X, proper# U32(X1, X2) -> proper# X2)
(proper# s X -> proper# X, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# s X -> proper# X, proper# U31(X1, X2) -> proper# X1)
(proper# s X -> proper# X, proper# U31(X1, X2) -> proper# X2)
(proper# s X -> proper# X, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# s X -> proper# X, proper# U42(X1, X2, X3) -> proper# X1)
(proper# s X -> proper# X, proper# U42(X1, X2, X3) -> proper# X2)
(proper# s X -> proper# X, proper# U42(X1, X2, X3) -> proper# X3)
(proper# s X -> proper# X, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# s X -> proper# X, proper# U41(X1, X2, X3) -> proper# X1)
(proper# s X -> proper# X, proper# U41(X1, X2, X3) -> proper# X2)
(proper# s X -> proper# X, proper# U41(X1, X2, X3) -> proper# X3)
(proper# s X -> proper# X, proper# head X -> head# proper X)
(proper# s X -> proper# X, proper# head X -> proper# X)
(proper# s X -> proper# X, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# s X -> proper# X, proper# afterNth(X1, X2) -> proper# X1)
(proper# s X -> proper# X, proper# afterNth(X1, X2) -> proper# X2)
(proper# s X -> proper# X, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# s X -> proper# X, proper# U52(X1, X2) -> proper# X1)
(proper# s X -> proper# X, proper# U52(X1, X2) -> proper# X2)
(proper# s X -> proper# X, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# s X -> proper# X, proper# U51(X1, X2) -> proper# X1)
(proper# s X -> proper# X, proper# U51(X1, X2) -> proper# X2)
(proper# s X -> proper# X, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# s X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# s X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# s X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# s X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# s X -> proper# X, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# s X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# s X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# s X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# s X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# s X -> proper# X, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# s X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# s X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# s X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# s X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# s X -> proper# X, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# s X -> proper# X, proper# U64(X1, X2) -> proper# X1)
(proper# s X -> proper# X, proper# U64(X1, X2) -> proper# X2)
(proper# s X -> proper# X, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# s X -> proper# X, proper# pair(X1, X2) -> proper# X1)
(proper# s X -> proper# X, proper# pair(X1, X2) -> proper# X2)
(proper# s X -> proper# X, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# s X -> proper# X, proper# cons(X1, X2) -> proper# X1)
(proper# s X -> proper# X, proper# cons(X1, X2) -> proper# X2)
(proper# s X -> proper# X, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# s X -> proper# X, proper# U72(X1, X2) -> proper# X1)
(proper# s X -> proper# X, proper# U72(X1, X2) -> proper# X2)
(proper# s X -> proper# X, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# s X -> proper# X, proper# U71(X1, X2) -> proper# X1)
(proper# s X -> proper# X, proper# U71(X1, X2) -> proper# X2)
(proper# s X -> proper# X, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# s X -> proper# X, proper# U82(X1, X2, X3) -> proper# X1)
(proper# s X -> proper# X, proper# U82(X1, X2, X3) -> proper# X2)
(proper# s X -> proper# X, proper# U82(X1, X2, X3) -> proper# X3)
(proper# s X -> proper# X, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# s X -> proper# X, proper# U81(X1, X2, X3) -> proper# X1)
(proper# s X -> proper# X, proper# U81(X1, X2, X3) -> proper# X2)
(proper# s X -> proper# X, proper# U81(X1, X2, X3) -> proper# X3)
(proper# s X -> proper# X, proper# fst X -> fst# proper X)
(proper# s X -> proper# X, proper# fst X -> proper# X)
(proper# s X -> proper# X, proper# natsFrom X -> natsFrom# proper X)
(proper# s X -> proper# X, proper# natsFrom X -> proper# X)
(proper# s X -> proper# X, proper# s X -> s# proper X)
(proper# s X -> proper# X, proper# s X -> proper# X)
(proper# s X -> proper# X, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# s X -> proper# X, proper# sel(X1, X2) -> proper# X1)
(proper# s X -> proper# X, proper# sel(X1, X2) -> proper# X2)
(proper# s X -> proper# X, proper# tail X -> tail# proper X)
(proper# s X -> proper# X, proper# tail X -> proper# X)
(proper# s X -> proper# X, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# s X -> proper# X, proper# take(X1, X2) -> proper# X1)
(proper# s X -> proper# X, proper# take(X1, X2) -> proper# X2)
(proper# fst X -> proper# X, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# fst X -> proper# X, proper# U12(X1, X2, X3) -> proper# X1)
(proper# fst X -> proper# X, proper# U12(X1, X2, X3) -> proper# X2)
(proper# fst X -> proper# X, proper# U12(X1, X2, X3) -> proper# X3)
(proper# fst X -> proper# X, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# fst X -> proper# X, proper# U11(X1, X2, X3) -> proper# X1)
(proper# fst X -> proper# X, proper# U11(X1, X2, X3) -> proper# X2)
(proper# fst X -> proper# X, proper# U11(X1, X2, X3) -> proper# X3)
(proper# fst X -> proper# X, proper# snd X -> snd# proper X)
(proper# fst X -> proper# X, proper# snd X -> proper# X)
(proper# fst X -> proper# X, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# fst X -> proper# X, proper# splitAt(X1, X2) -> proper# X1)
(proper# fst X -> proper# X, proper# splitAt(X1, X2) -> proper# X2)
(proper# fst X -> proper# X, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# fst X -> proper# X, proper# U22(X1, X2) -> proper# X1)
(proper# fst X -> proper# X, proper# U22(X1, X2) -> proper# X2)
(proper# fst X -> proper# X, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# fst X -> proper# X, proper# U21(X1, X2) -> proper# X1)
(proper# fst X -> proper# X, proper# U21(X1, X2) -> proper# X2)
(proper# fst X -> proper# X, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# fst X -> proper# X, proper# U32(X1, X2) -> proper# X1)
(proper# fst X -> proper# X, proper# U32(X1, X2) -> proper# X2)
(proper# fst X -> proper# X, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# fst X -> proper# X, proper# U31(X1, X2) -> proper# X1)
(proper# fst X -> proper# X, proper# U31(X1, X2) -> proper# X2)
(proper# fst X -> proper# X, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# fst X -> proper# X, proper# U42(X1, X2, X3) -> proper# X1)
(proper# fst X -> proper# X, proper# U42(X1, X2, X3) -> proper# X2)
(proper# fst X -> proper# X, proper# U42(X1, X2, X3) -> proper# X3)
(proper# fst X -> proper# X, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# fst X -> proper# X, proper# U41(X1, X2, X3) -> proper# X1)
(proper# fst X -> proper# X, proper# U41(X1, X2, X3) -> proper# X2)
(proper# fst X -> proper# X, proper# U41(X1, X2, X3) -> proper# X3)
(proper# fst X -> proper# X, proper# head X -> head# proper X)
(proper# fst X -> proper# X, proper# head X -> proper# X)
(proper# fst X -> proper# X, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# fst X -> proper# X, proper# afterNth(X1, X2) -> proper# X1)
(proper# fst X -> proper# X, proper# afterNth(X1, X2) -> proper# X2)
(proper# fst X -> proper# X, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# fst X -> proper# X, proper# U52(X1, X2) -> proper# X1)
(proper# fst X -> proper# X, proper# U52(X1, X2) -> proper# X2)
(proper# fst X -> proper# X, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# fst X -> proper# X, proper# U51(X1, X2) -> proper# X1)
(proper# fst X -> proper# X, proper# U51(X1, X2) -> proper# X2)
(proper# fst X -> proper# X, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# fst X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# fst X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# fst X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# fst X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# fst X -> proper# X, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# fst X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# fst X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# fst X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# fst X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# fst X -> proper# X, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# fst X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# fst X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# fst X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# fst X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# fst X -> proper# X, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# fst X -> proper# X, proper# U64(X1, X2) -> proper# X1)
(proper# fst X -> proper# X, proper# U64(X1, X2) -> proper# X2)
(proper# fst X -> proper# X, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# fst X -> proper# X, proper# pair(X1, X2) -> proper# X1)
(proper# fst X -> proper# X, proper# pair(X1, X2) -> proper# X2)
(proper# fst X -> proper# X, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# fst X -> proper# X, proper# cons(X1, X2) -> proper# X1)
(proper# fst X -> proper# X, proper# cons(X1, X2) -> proper# X2)
(proper# fst X -> proper# X, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# fst X -> proper# X, proper# U72(X1, X2) -> proper# X1)
(proper# fst X -> proper# X, proper# U72(X1, X2) -> proper# X2)
(proper# fst X -> proper# X, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# fst X -> proper# X, proper# U71(X1, X2) -> proper# X1)
(proper# fst X -> proper# X, proper# U71(X1, X2) -> proper# X2)
(proper# fst X -> proper# X, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# fst X -> proper# X, proper# U82(X1, X2, X3) -> proper# X1)
(proper# fst X -> proper# X, proper# U82(X1, X2, X3) -> proper# X2)
(proper# fst X -> proper# X, proper# U82(X1, X2, X3) -> proper# X3)
(proper# fst X -> proper# X, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# fst X -> proper# X, proper# U81(X1, X2, X3) -> proper# X1)
(proper# fst X -> proper# X, proper# U81(X1, X2, X3) -> proper# X2)
(proper# fst X -> proper# X, proper# U81(X1, X2, X3) -> proper# X3)
(proper# fst X -> proper# X, proper# fst X -> fst# proper X)
(proper# fst X -> proper# X, proper# fst X -> proper# X)
(proper# fst X -> proper# X, proper# natsFrom X -> natsFrom# proper X)
(proper# fst X -> proper# X, proper# natsFrom X -> proper# X)
(proper# fst X -> proper# X, proper# s X -> s# proper X)
(proper# fst X -> proper# X, proper# s X -> proper# X)
(proper# fst X -> proper# X, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# fst X -> proper# X, proper# sel(X1, X2) -> proper# X1)
(proper# fst X -> proper# X, proper# sel(X1, X2) -> proper# X2)
(proper# fst X -> proper# X, proper# tail X -> tail# proper X)
(proper# fst X -> proper# X, proper# tail X -> proper# X)
(proper# fst X -> proper# X, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# fst X -> proper# X, proper# take(X1, X2) -> proper# X1)
(proper# fst X -> proper# X, proper# take(X1, X2) -> proper# X2)
(proper# snd X -> proper# X, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# snd X -> proper# X, proper# U12(X1, X2, X3) -> proper# X1)
(proper# snd X -> proper# X, proper# U12(X1, X2, X3) -> proper# X2)
(proper# snd X -> proper# X, proper# U12(X1, X2, X3) -> proper# X3)
(proper# snd X -> proper# X, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# snd X -> proper# X, proper# U11(X1, X2, X3) -> proper# X1)
(proper# snd X -> proper# X, proper# U11(X1, X2, X3) -> proper# X2)
(proper# snd X -> proper# X, proper# U11(X1, X2, X3) -> proper# X3)
(proper# snd X -> proper# X, proper# snd X -> snd# proper X)
(proper# snd X -> proper# X, proper# snd X -> proper# X)
(proper# snd X -> proper# X, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# snd X -> proper# X, proper# splitAt(X1, X2) -> proper# X1)
(proper# snd X -> proper# X, proper# splitAt(X1, X2) -> proper# X2)
(proper# snd X -> proper# X, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# snd X -> proper# X, proper# U22(X1, X2) -> proper# X1)
(proper# snd X -> proper# X, proper# U22(X1, X2) -> proper# X2)
(proper# snd X -> proper# X, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# snd X -> proper# X, proper# U21(X1, X2) -> proper# X1)
(proper# snd X -> proper# X, proper# U21(X1, X2) -> proper# X2)
(proper# snd X -> proper# X, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# snd X -> proper# X, proper# U32(X1, X2) -> proper# X1)
(proper# snd X -> proper# X, proper# U32(X1, X2) -> proper# X2)
(proper# snd X -> proper# X, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# snd X -> proper# X, proper# U31(X1, X2) -> proper# X1)
(proper# snd X -> proper# X, proper# U31(X1, X2) -> proper# X2)
(proper# snd X -> proper# X, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# snd X -> proper# X, proper# U42(X1, X2, X3) -> proper# X1)
(proper# snd X -> proper# X, proper# U42(X1, X2, X3) -> proper# X2)
(proper# snd X -> proper# X, proper# U42(X1, X2, X3) -> proper# X3)
(proper# snd X -> proper# X, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# snd X -> proper# X, proper# U41(X1, X2, X3) -> proper# X1)
(proper# snd X -> proper# X, proper# U41(X1, X2, X3) -> proper# X2)
(proper# snd X -> proper# X, proper# U41(X1, X2, X3) -> proper# X3)
(proper# snd X -> proper# X, proper# head X -> head# proper X)
(proper# snd X -> proper# X, proper# head X -> proper# X)
(proper# snd X -> proper# X, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# snd X -> proper# X, proper# afterNth(X1, X2) -> proper# X1)
(proper# snd X -> proper# X, proper# afterNth(X1, X2) -> proper# X2)
(proper# snd X -> proper# X, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# snd X -> proper# X, proper# U52(X1, X2) -> proper# X1)
(proper# snd X -> proper# X, proper# U52(X1, X2) -> proper# X2)
(proper# snd X -> proper# X, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# snd X -> proper# X, proper# U51(X1, X2) -> proper# X1)
(proper# snd X -> proper# X, proper# U51(X1, X2) -> proper# X2)
(proper# snd X -> proper# X, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# snd X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# snd X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# snd X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# snd X -> proper# X, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# snd X -> proper# X, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# snd X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# snd X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# snd X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# snd X -> proper# X, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# snd X -> proper# X, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# snd X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# snd X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# snd X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# snd X -> proper# X, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# snd X -> proper# X, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# snd X -> proper# X, proper# U64(X1, X2) -> proper# X1)
(proper# snd X -> proper# X, proper# U64(X1, X2) -> proper# X2)
(proper# snd X -> proper# X, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# snd X -> proper# X, proper# pair(X1, X2) -> proper# X1)
(proper# snd X -> proper# X, proper# pair(X1, X2) -> proper# X2)
(proper# snd X -> proper# X, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# snd X -> proper# X, proper# cons(X1, X2) -> proper# X1)
(proper# snd X -> proper# X, proper# cons(X1, X2) -> proper# X2)
(proper# snd X -> proper# X, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# snd X -> proper# X, proper# U72(X1, X2) -> proper# X1)
(proper# snd X -> proper# X, proper# U72(X1, X2) -> proper# X2)
(proper# snd X -> proper# X, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# snd X -> proper# X, proper# U71(X1, X2) -> proper# X1)
(proper# snd X -> proper# X, proper# U71(X1, X2) -> proper# X2)
(proper# snd X -> proper# X, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# snd X -> proper# X, proper# U82(X1, X2, X3) -> proper# X1)
(proper# snd X -> proper# X, proper# U82(X1, X2, X3) -> proper# X2)
(proper# snd X -> proper# X, proper# U82(X1, X2, X3) -> proper# X3)
(proper# snd X -> proper# X, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# snd X -> proper# X, proper# U81(X1, X2, X3) -> proper# X1)
(proper# snd X -> proper# X, proper# U81(X1, X2, X3) -> proper# X2)
(proper# snd X -> proper# X, proper# U81(X1, X2, X3) -> proper# X3)
(proper# snd X -> proper# X, proper# fst X -> fst# proper X)
(proper# snd X -> proper# X, proper# fst X -> proper# X)
(proper# snd X -> proper# X, proper# natsFrom X -> natsFrom# proper X)
(proper# snd X -> proper# X, proper# natsFrom X -> proper# X)
(proper# snd X -> proper# X, proper# s X -> s# proper X)
(proper# snd X -> proper# X, proper# s X -> proper# X)
(proper# snd X -> proper# X, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# snd X -> proper# X, proper# sel(X1, X2) -> proper# X1)
(proper# snd X -> proper# X, proper# sel(X1, X2) -> proper# X2)
(proper# snd X -> proper# X, proper# tail X -> tail# proper X)
(proper# snd X -> proper# X, proper# tail X -> proper# X)
(proper# snd X -> proper# X, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# snd X -> proper# X, proper# take(X1, X2) -> proper# X1)
(proper# snd X -> proper# X, proper# take(X1, X2) -> proper# X2)
(tail# mark X -> tail# X, tail# mark X -> tail# X)
(tail# mark X -> tail# X, tail# ok X -> tail# X)
(s# mark X -> s# X, s# mark X -> s# X)
(s# mark X -> s# X, s# ok X -> s# X)
(natsFrom# mark X -> natsFrom# X, natsFrom# mark X -> natsFrom# X)
(natsFrom# mark X -> natsFrom# X, natsFrom# ok X -> natsFrom# X)
(fst# mark X -> fst# X, fst# mark X -> fst# X)
(fst# mark X -> fst# X, fst# ok X -> fst# X)
(head# mark X -> head# X, head# mark X -> head# X)
(head# mark X -> head# X, head# ok X -> head# X)
(snd# mark X -> snd# X, snd# mark X -> snd# X)
(snd# mark X -> snd# X, snd# ok X -> snd# X)
(active# s X -> active# X, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# s X -> active# X, active# U12(X1, X2, X3) -> active# X1)
(active# s X -> active# X, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# s X -> active# X, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# s X -> active# X, active# U11(X1, X2, X3) -> active# X1)
(active# s X -> active# X, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# s X -> active# X, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# s X -> active# X, active# snd X -> active# X)
(active# s X -> active# X, active# snd X -> snd# active X)
(active# s X -> active# X, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# s X -> active# X, active# splitAt(X1, X2) -> active# X1)
(active# s X -> active# X, active# splitAt(X1, X2) -> active# X2)
(active# s X -> active# X, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# s X -> active# X, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# s X -> active# X, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# s X -> active# X, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# s X -> active# X, active# U22(X1, X2) -> active# X1)
(active# s X -> active# X, active# U22(X1, X2) -> U22#(active X1, X2))
(active# s X -> active# X, active# U21(X1, X2) -> active# X1)
(active# s X -> active# X, active# U21(X1, X2) -> U21#(active X1, X2))
(active# s X -> active# X, active# U21(tt(), X) -> U22#(tt(), X))
(active# s X -> active# X, active# U32(X1, X2) -> active# X1)
(active# s X -> active# X, active# U32(X1, X2) -> U32#(active X1, X2))
(active# s X -> active# X, active# U31(X1, X2) -> active# X1)
(active# s X -> active# X, active# U31(X1, X2) -> U31#(active X1, X2))
(active# s X -> active# X, active# U31(tt(), N) -> U32#(tt(), N))
(active# s X -> active# X, active# U42(X1, X2, X3) -> active# X1)
(active# s X -> active# X, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# s X -> active# X, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# s X -> active# X, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# s X -> active# X, active# U41(X1, X2, X3) -> active# X1)
(active# s X -> active# X, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# s X -> active# X, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# s X -> active# X, active# head X -> active# X)
(active# s X -> active# X, active# head X -> head# active X)
(active# s X -> active# X, active# head cons(N, XS) -> U31#(tt(), N))
(active# s X -> active# X, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# s X -> active# X, active# afterNth(X1, X2) -> active# X1)
(active# s X -> active# X, active# afterNth(X1, X2) -> active# X2)
(active# s X -> active# X, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# s X -> active# X, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# s X -> active# X, active# U52(X1, X2) -> active# X1)
(active# s X -> active# X, active# U52(X1, X2) -> U52#(active X1, X2))
(active# s X -> active# X, active# U51(X1, X2) -> active# X1)
(active# s X -> active# X, active# U51(X1, X2) -> U51#(active X1, X2))
(active# s X -> active# X, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# s X -> active# X, active# U62(X1, X2, X3, X4) -> active# X1)
(active# s X -> active# X, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# s X -> active# X, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# s X -> active# X, active# U61(X1, X2, X3, X4) -> active# X1)
(active# s X -> active# X, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# s X -> active# X, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# s X -> active# X, active# U63(X1, X2, X3, X4) -> active# X1)
(active# s X -> active# X, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# s X -> active# X, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# s X -> active# X, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# s X -> active# X, active# U64(X1, X2) -> active# X1)
(active# s X -> active# X, active# U64(X1, X2) -> U64#(active X1, X2))
(active# s X -> active# X, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# s X -> active# X, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# s X -> active# X, active# pair(X1, X2) -> active# X1)
(active# s X -> active# X, active# pair(X1, X2) -> active# X2)
(active# s X -> active# X, active# pair(X1, X2) -> pair#(X1, active X2))
(active# s X -> active# X, active# pair(X1, X2) -> pair#(active X1, X2))
(active# s X -> active# X, active# cons(X1, X2) -> active# X1)
(active# s X -> active# X, active# cons(X1, X2) -> cons#(active X1, X2))
(active# s X -> active# X, active# U72(X1, X2) -> active# X1)
(active# s X -> active# X, active# U72(X1, X2) -> U72#(active X1, X2))
(active# s X -> active# X, active# U71(X1, X2) -> active# X1)
(active# s X -> active# X, active# U71(X1, X2) -> U71#(active X1, X2))
(active# s X -> active# X, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# s X -> active# X, active# U82(X1, X2, X3) -> active# X1)
(active# s X -> active# X, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# s X -> active# X, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# s X -> active# X, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# s X -> active# X, active# U81(X1, X2, X3) -> active# X1)
(active# s X -> active# X, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# s X -> active# X, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# s X -> active# X, active# fst X -> active# X)
(active# s X -> active# X, active# fst X -> fst# active X)
(active# s X -> active# X, active# fst pair(X, Y) -> U21#(tt(), X))
(active# s X -> active# X, active# natsFrom N -> cons#(N, natsFrom s N))
(active# s X -> active# X, active# natsFrom N -> natsFrom# s N)
(active# s X -> active# X, active# natsFrom N -> s# N)
(active# s X -> active# X, active# natsFrom X -> active# X)
(active# s X -> active# X, active# natsFrom X -> natsFrom# active X)
(active# s X -> active# X, active# s X -> active# X)
(active# s X -> active# X, active# s X -> s# active X)
(active# s X -> active# X, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# s X -> active# X, active# sel(X1, X2) -> active# X1)
(active# s X -> active# X, active# sel(X1, X2) -> active# X2)
(active# s X -> active# X, active# sel(X1, X2) -> sel#(X1, active X2))
(active# s X -> active# X, active# sel(X1, X2) -> sel#(active X1, X2))
(active# s X -> active# X, active# tail X -> active# X)
(active# s X -> active# X, active# tail X -> tail# active X)
(active# s X -> active# X, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# s X -> active# X, active# take(N, XS) -> U81#(tt(), N, XS))
(active# s X -> active# X, active# take(X1, X2) -> active# X1)
(active# s X -> active# X, active# take(X1, X2) -> active# X2)
(active# s X -> active# X, active# take(X1, X2) -> take#(X1, active X2))
(active# s X -> active# X, active# take(X1, X2) -> take#(active X1, X2))
(active# fst X -> active# X, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# fst X -> active# X, active# U12(X1, X2, X3) -> active# X1)
(active# fst X -> active# X, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# fst X -> active# X, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# fst X -> active# X, active# U11(X1, X2, X3) -> active# X1)
(active# fst X -> active# X, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# fst X -> active# X, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# fst X -> active# X, active# snd X -> active# X)
(active# fst X -> active# X, active# snd X -> snd# active X)
(active# fst X -> active# X, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# fst X -> active# X, active# splitAt(X1, X2) -> active# X1)
(active# fst X -> active# X, active# splitAt(X1, X2) -> active# X2)
(active# fst X -> active# X, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# fst X -> active# X, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# fst X -> active# X, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# fst X -> active# X, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# fst X -> active# X, active# U22(X1, X2) -> active# X1)
(active# fst X -> active# X, active# U22(X1, X2) -> U22#(active X1, X2))
(active# fst X -> active# X, active# U21(X1, X2) -> active# X1)
(active# fst X -> active# X, active# U21(X1, X2) -> U21#(active X1, X2))
(active# fst X -> active# X, active# U21(tt(), X) -> U22#(tt(), X))
(active# fst X -> active# X, active# U32(X1, X2) -> active# X1)
(active# fst X -> active# X, active# U32(X1, X2) -> U32#(active X1, X2))
(active# fst X -> active# X, active# U31(X1, X2) -> active# X1)
(active# fst X -> active# X, active# U31(X1, X2) -> U31#(active X1, X2))
(active# fst X -> active# X, active# U31(tt(), N) -> U32#(tt(), N))
(active# fst X -> active# X, active# U42(X1, X2, X3) -> active# X1)
(active# fst X -> active# X, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# fst X -> active# X, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# fst X -> active# X, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# fst X -> active# X, active# U41(X1, X2, X3) -> active# X1)
(active# fst X -> active# X, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# fst X -> active# X, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# fst X -> active# X, active# head X -> active# X)
(active# fst X -> active# X, active# head X -> head# active X)
(active# fst X -> active# X, active# head cons(N, XS) -> U31#(tt(), N))
(active# fst X -> active# X, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# fst X -> active# X, active# afterNth(X1, X2) -> active# X1)
(active# fst X -> active# X, active# afterNth(X1, X2) -> active# X2)
(active# fst X -> active# X, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# fst X -> active# X, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# fst X -> active# X, active# U52(X1, X2) -> active# X1)
(active# fst X -> active# X, active# U52(X1, X2) -> U52#(active X1, X2))
(active# fst X -> active# X, active# U51(X1, X2) -> active# X1)
(active# fst X -> active# X, active# U51(X1, X2) -> U51#(active X1, X2))
(active# fst X -> active# X, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# fst X -> active# X, active# U62(X1, X2, X3, X4) -> active# X1)
(active# fst X -> active# X, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# fst X -> active# X, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# fst X -> active# X, active# U61(X1, X2, X3, X4) -> active# X1)
(active# fst X -> active# X, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# fst X -> active# X, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# fst X -> active# X, active# U63(X1, X2, X3, X4) -> active# X1)
(active# fst X -> active# X, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# fst X -> active# X, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# fst X -> active# X, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# fst X -> active# X, active# U64(X1, X2) -> active# X1)
(active# fst X -> active# X, active# U64(X1, X2) -> U64#(active X1, X2))
(active# fst X -> active# X, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# fst X -> active# X, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# fst X -> active# X, active# pair(X1, X2) -> active# X1)
(active# fst X -> active# X, active# pair(X1, X2) -> active# X2)
(active# fst X -> active# X, active# pair(X1, X2) -> pair#(X1, active X2))
(active# fst X -> active# X, active# pair(X1, X2) -> pair#(active X1, X2))
(active# fst X -> active# X, active# cons(X1, X2) -> active# X1)
(active# fst X -> active# X, active# cons(X1, X2) -> cons#(active X1, X2))
(active# fst X -> active# X, active# U72(X1, X2) -> active# X1)
(active# fst X -> active# X, active# U72(X1, X2) -> U72#(active X1, X2))
(active# fst X -> active# X, active# U71(X1, X2) -> active# X1)
(active# fst X -> active# X, active# U71(X1, X2) -> U71#(active X1, X2))
(active# fst X -> active# X, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# fst X -> active# X, active# U82(X1, X2, X3) -> active# X1)
(active# fst X -> active# X, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# fst X -> active# X, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# fst X -> active# X, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# fst X -> active# X, active# U81(X1, X2, X3) -> active# X1)
(active# fst X -> active# X, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# fst X -> active# X, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# fst X -> active# X, active# fst X -> active# X)
(active# fst X -> active# X, active# fst X -> fst# active X)
(active# fst X -> active# X, active# fst pair(X, Y) -> U21#(tt(), X))
(active# fst X -> active# X, active# natsFrom N -> cons#(N, natsFrom s N))
(active# fst X -> active# X, active# natsFrom N -> natsFrom# s N)
(active# fst X -> active# X, active# natsFrom N -> s# N)
(active# fst X -> active# X, active# natsFrom X -> active# X)
(active# fst X -> active# X, active# natsFrom X -> natsFrom# active X)
(active# fst X -> active# X, active# s X -> active# X)
(active# fst X -> active# X, active# s X -> s# active X)
(active# fst X -> active# X, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# fst X -> active# X, active# sel(X1, X2) -> active# X1)
(active# fst X -> active# X, active# sel(X1, X2) -> active# X2)
(active# fst X -> active# X, active# sel(X1, X2) -> sel#(X1, active X2))
(active# fst X -> active# X, active# sel(X1, X2) -> sel#(active X1, X2))
(active# fst X -> active# X, active# tail X -> active# X)
(active# fst X -> active# X, active# tail X -> tail# active X)
(active# fst X -> active# X, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# fst X -> active# X, active# take(N, XS) -> U81#(tt(), N, XS))
(active# fst X -> active# X, active# take(X1, X2) -> active# X1)
(active# fst X -> active# X, active# take(X1, X2) -> active# X2)
(active# fst X -> active# X, active# take(X1, X2) -> take#(X1, active X2))
(active# fst X -> active# X, active# take(X1, X2) -> take#(active X1, X2))
(active# snd X -> active# X, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# snd X -> active# X, active# U12(X1, X2, X3) -> active# X1)
(active# snd X -> active# X, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# snd X -> active# X, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# snd X -> active# X, active# U11(X1, X2, X3) -> active# X1)
(active# snd X -> active# X, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# snd X -> active# X, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# snd X -> active# X, active# snd X -> active# X)
(active# snd X -> active# X, active# snd X -> snd# active X)
(active# snd X -> active# X, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# snd X -> active# X, active# splitAt(X1, X2) -> active# X1)
(active# snd X -> active# X, active# splitAt(X1, X2) -> active# X2)
(active# snd X -> active# X, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# snd X -> active# X, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# snd X -> active# X, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# snd X -> active# X, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# snd X -> active# X, active# U22(X1, X2) -> active# X1)
(active# snd X -> active# X, active# U22(X1, X2) -> U22#(active X1, X2))
(active# snd X -> active# X, active# U21(X1, X2) -> active# X1)
(active# snd X -> active# X, active# U21(X1, X2) -> U21#(active X1, X2))
(active# snd X -> active# X, active# U21(tt(), X) -> U22#(tt(), X))
(active# snd X -> active# X, active# U32(X1, X2) -> active# X1)
(active# snd X -> active# X, active# U32(X1, X2) -> U32#(active X1, X2))
(active# snd X -> active# X, active# U31(X1, X2) -> active# X1)
(active# snd X -> active# X, active# U31(X1, X2) -> U31#(active X1, X2))
(active# snd X -> active# X, active# U31(tt(), N) -> U32#(tt(), N))
(active# snd X -> active# X, active# U42(X1, X2, X3) -> active# X1)
(active# snd X -> active# X, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# snd X -> active# X, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# snd X -> active# X, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# snd X -> active# X, active# U41(X1, X2, X3) -> active# X1)
(active# snd X -> active# X, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# snd X -> active# X, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# snd X -> active# X, active# head X -> active# X)
(active# snd X -> active# X, active# head X -> head# active X)
(active# snd X -> active# X, active# head cons(N, XS) -> U31#(tt(), N))
(active# snd X -> active# X, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# snd X -> active# X, active# afterNth(X1, X2) -> active# X1)
(active# snd X -> active# X, active# afterNth(X1, X2) -> active# X2)
(active# snd X -> active# X, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# snd X -> active# X, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# snd X -> active# X, active# U52(X1, X2) -> active# X1)
(active# snd X -> active# X, active# U52(X1, X2) -> U52#(active X1, X2))
(active# snd X -> active# X, active# U51(X1, X2) -> active# X1)
(active# snd X -> active# X, active# U51(X1, X2) -> U51#(active X1, X2))
(active# snd X -> active# X, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# snd X -> active# X, active# U62(X1, X2, X3, X4) -> active# X1)
(active# snd X -> active# X, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# snd X -> active# X, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# snd X -> active# X, active# U61(X1, X2, X3, X4) -> active# X1)
(active# snd X -> active# X, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# snd X -> active# X, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# snd X -> active# X, active# U63(X1, X2, X3, X4) -> active# X1)
(active# snd X -> active# X, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# snd X -> active# X, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# snd X -> active# X, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# snd X -> active# X, active# U64(X1, X2) -> active# X1)
(active# snd X -> active# X, active# U64(X1, X2) -> U64#(active X1, X2))
(active# snd X -> active# X, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# snd X -> active# X, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# snd X -> active# X, active# pair(X1, X2) -> active# X1)
(active# snd X -> active# X, active# pair(X1, X2) -> active# X2)
(active# snd X -> active# X, active# pair(X1, X2) -> pair#(X1, active X2))
(active# snd X -> active# X, active# pair(X1, X2) -> pair#(active X1, X2))
(active# snd X -> active# X, active# cons(X1, X2) -> active# X1)
(active# snd X -> active# X, active# cons(X1, X2) -> cons#(active X1, X2))
(active# snd X -> active# X, active# U72(X1, X2) -> active# X1)
(active# snd X -> active# X, active# U72(X1, X2) -> U72#(active X1, X2))
(active# snd X -> active# X, active# U71(X1, X2) -> active# X1)
(active# snd X -> active# X, active# U71(X1, X2) -> U71#(active X1, X2))
(active# snd X -> active# X, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# snd X -> active# X, active# U82(X1, X2, X3) -> active# X1)
(active# snd X -> active# X, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# snd X -> active# X, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# snd X -> active# X, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# snd X -> active# X, active# U81(X1, X2, X3) -> active# X1)
(active# snd X -> active# X, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# snd X -> active# X, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# snd X -> active# X, active# fst X -> active# X)
(active# snd X -> active# X, active# fst X -> fst# active X)
(active# snd X -> active# X, active# fst pair(X, Y) -> U21#(tt(), X))
(active# snd X -> active# X, active# natsFrom N -> cons#(N, natsFrom s N))
(active# snd X -> active# X, active# natsFrom N -> natsFrom# s N)
(active# snd X -> active# X, active# natsFrom N -> s# N)
(active# snd X -> active# X, active# natsFrom X -> active# X)
(active# snd X -> active# X, active# natsFrom X -> natsFrom# active X)
(active# snd X -> active# X, active# s X -> active# X)
(active# snd X -> active# X, active# s X -> s# active X)
(active# snd X -> active# X, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# snd X -> active# X, active# sel(X1, X2) -> active# X1)
(active# snd X -> active# X, active# sel(X1, X2) -> active# X2)
(active# snd X -> active# X, active# sel(X1, X2) -> sel#(X1, active X2))
(active# snd X -> active# X, active# sel(X1, X2) -> sel#(active X1, X2))
(active# snd X -> active# X, active# tail X -> active# X)
(active# snd X -> active# X, active# tail X -> tail# active X)
(active# snd X -> active# X, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# snd X -> active# X, active# take(N, XS) -> U81#(tt(), N, XS))
(active# snd X -> active# X, active# take(X1, X2) -> active# X1)
(active# snd X -> active# X, active# take(X1, X2) -> active# X2)
(active# snd X -> active# X, active# take(X1, X2) -> take#(X1, active X2))
(active# snd X -> active# X, active# take(X1, X2) -> take#(active X1, X2))
(active# U42(tt(), N, XS) -> head# afterNth(N, XS), head# mark X -> head# X)
(active# U42(tt(), N, XS) -> head# afterNth(N, XS), head# ok X -> head# X)
(proper# take(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# take(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X1)
(proper# take(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X2)
(proper# take(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X3)
(proper# take(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# take(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X1)
(proper# take(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X2)
(proper# take(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X3)
(proper# take(X1, X2) -> proper# X2, proper# snd X -> snd# proper X)
(proper# take(X1, X2) -> proper# X2, proper# snd X -> proper# X)
(proper# take(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X2, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X2, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X2, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X2, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# take(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X1)
(proper# take(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X2)
(proper# take(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X3)
(proper# take(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# take(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X1)
(proper# take(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X2)
(proper# take(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X3)
(proper# take(X1, X2) -> proper# X2, proper# head X -> head# proper X)
(proper# take(X1, X2) -> proper# X2, proper# head X -> proper# X)
(proper# take(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X2, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X2, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# take(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# take(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# take(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# take(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# take(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# take(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# take(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# take(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# take(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# take(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# take(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# take(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# take(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# take(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# take(X1, X2) -> proper# X2, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X2, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X2, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X2, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X2, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# take(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X1)
(proper# take(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X2)
(proper# take(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X3)
(proper# take(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# take(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X1)
(proper# take(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X2)
(proper# take(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X3)
(proper# take(X1, X2) -> proper# X2, proper# fst X -> fst# proper X)
(proper# take(X1, X2) -> proper# X2, proper# fst X -> proper# X)
(proper# take(X1, X2) -> proper# X2, proper# natsFrom X -> natsFrom# proper X)
(proper# take(X1, X2) -> proper# X2, proper# natsFrom X -> proper# X)
(proper# take(X1, X2) -> proper# X2, proper# s X -> s# proper X)
(proper# take(X1, X2) -> proper# X2, proper# s X -> proper# X)
(proper# take(X1, X2) -> proper# X2, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X2)
(proper# take(X1, X2) -> proper# X2, proper# tail X -> tail# proper X)
(proper# take(X1, X2) -> proper# X2, proper# tail X -> proper# X)
(proper# take(X1, X2) -> proper# X2, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# take(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X1)
(proper# take(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U81(X1, X2, X3) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U81(X1, X2, X3) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X2, proper# snd X -> snd# proper X)
(proper# U81(X1, X2, X3) -> proper# X2, proper# snd X -> proper# X)
(proper# U81(X1, X2, X3) -> proper# X2, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X2, proper# splitAt(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X2, proper# splitAt(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X2, proper# U22(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U22(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X2, proper# U21(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U21(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X2, proper# U32(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U32(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X2, proper# U31(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U31(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U81(X1, X2, X3) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U81(X1, X2, X3) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X2, proper# head X -> head# proper X)
(proper# U81(X1, X2, X3) -> proper# X2, proper# head X -> proper# X)
(proper# U81(X1, X2, X3) -> proper# X2, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X2, proper# afterNth(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X2, proper# afterNth(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X2, proper# U52(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U52(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X2, proper# U51(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U51(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U81(X1, X2, X3) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U81(X1, X2, X3) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U81(X1, X2, X3) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X2, proper# U64(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U64(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X2, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X2, proper# pair(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X2, proper# pair(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X2, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X2, proper# cons(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X2, proper# cons(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X2, proper# U72(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U72(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X2, proper# U71(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U71(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U81(X1, X2, X3) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U81(X1, X2, X3) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U81(X1, X2, X3) -> proper# X2, proper# fst X -> fst# proper X)
(proper# U81(X1, X2, X3) -> proper# X2, proper# fst X -> proper# X)
(proper# U81(X1, X2, X3) -> proper# X2, proper# natsFrom X -> natsFrom# proper X)
(proper# U81(X1, X2, X3) -> proper# X2, proper# natsFrom X -> proper# X)
(proper# U81(X1, X2, X3) -> proper# X2, proper# s X -> s# proper X)
(proper# U81(X1, X2, X3) -> proper# X2, proper# s X -> proper# X)
(proper# U81(X1, X2, X3) -> proper# X2, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X2, proper# sel(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X2, proper# sel(X1, X2) -> proper# X2)
(proper# U81(X1, X2, X3) -> proper# X2, proper# tail X -> tail# proper X)
(proper# U81(X1, X2, X3) -> proper# X2, proper# tail X -> proper# X)
(proper# U81(X1, X2, X3) -> proper# X2, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U81(X1, X2, X3) -> proper# X2, proper# take(X1, X2) -> proper# X1)
(proper# U81(X1, X2, X3) -> proper# X2, proper# take(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U71(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U71(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U71(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U71(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U71(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U71(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U71(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U71(X1, X2) -> proper# X2, proper# snd X -> snd# proper X)
(proper# U71(X1, X2) -> proper# X2, proper# snd X -> proper# X)
(proper# U71(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X2, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X2, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X2, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X2, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U71(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U71(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U71(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U71(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U71(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U71(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U71(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U71(X1, X2) -> proper# X2, proper# head X -> head# proper X)
(proper# U71(X1, X2) -> proper# X2, proper# head X -> proper# X)
(proper# U71(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X2, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X2, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U71(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U71(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U71(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U71(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U71(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U71(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U71(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U71(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U71(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U71(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U71(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U71(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U71(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U71(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U71(X1, X2) -> proper# X2, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X2, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X2, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X2, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X2, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U71(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U71(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U71(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U71(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U71(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U71(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U71(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U71(X1, X2) -> proper# X2, proper# fst X -> fst# proper X)
(proper# U71(X1, X2) -> proper# X2, proper# fst X -> proper# X)
(proper# U71(X1, X2) -> proper# X2, proper# natsFrom X -> natsFrom# proper X)
(proper# U71(X1, X2) -> proper# X2, proper# natsFrom X -> proper# X)
(proper# U71(X1, X2) -> proper# X2, proper# s X -> s# proper X)
(proper# U71(X1, X2) -> proper# X2, proper# s X -> proper# X)
(proper# U71(X1, X2) -> proper# X2, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X2)
(proper# U71(X1, X2) -> proper# X2, proper# tail X -> tail# proper X)
(proper# U71(X1, X2) -> proper# X2, proper# tail X -> proper# X)
(proper# U71(X1, X2) -> proper# X2, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U71(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X1)
(proper# U71(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# cons(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X1)
(proper# cons(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X2)
(proper# cons(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X3)
(proper# cons(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# cons(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X1)
(proper# cons(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X2)
(proper# cons(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X3)
(proper# cons(X1, X2) -> proper# X2, proper# snd X -> snd# proper X)
(proper# cons(X1, X2) -> proper# X2, proper# snd X -> proper# X)
(proper# cons(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X2, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X2, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X2, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X2, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# cons(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X1)
(proper# cons(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X2)
(proper# cons(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X3)
(proper# cons(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# cons(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X1)
(proper# cons(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X2)
(proper# cons(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X3)
(proper# cons(X1, X2) -> proper# X2, proper# head X -> head# proper X)
(proper# cons(X1, X2) -> proper# X2, proper# head X -> proper# X)
(proper# cons(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X2, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X2, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# cons(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# cons(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# cons(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# cons(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# cons(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# cons(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# cons(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# cons(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# cons(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# cons(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# cons(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# cons(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# cons(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# cons(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# cons(X1, X2) -> proper# X2, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X2, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X2, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X2, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X2, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# cons(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X1)
(proper# cons(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X2)
(proper# cons(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X3)
(proper# cons(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# cons(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X1)
(proper# cons(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X2)
(proper# cons(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X3)
(proper# cons(X1, X2) -> proper# X2, proper# fst X -> fst# proper X)
(proper# cons(X1, X2) -> proper# X2, proper# fst X -> proper# X)
(proper# cons(X1, X2) -> proper# X2, proper# natsFrom X -> natsFrom# proper X)
(proper# cons(X1, X2) -> proper# X2, proper# natsFrom X -> proper# X)
(proper# cons(X1, X2) -> proper# X2, proper# s X -> s# proper X)
(proper# cons(X1, X2) -> proper# X2, proper# s X -> proper# X)
(proper# cons(X1, X2) -> proper# X2, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X2)
(proper# cons(X1, X2) -> proper# X2, proper# tail X -> tail# proper X)
(proper# cons(X1, X2) -> proper# X2, proper# tail X -> proper# X)
(proper# cons(X1, X2) -> proper# X2, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# cons(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X1)
(proper# cons(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U64(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U64(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U64(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U64(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U64(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U64(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U64(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U64(X1, X2) -> proper# X2, proper# snd X -> snd# proper X)
(proper# U64(X1, X2) -> proper# X2, proper# snd X -> proper# X)
(proper# U64(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X2, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X2, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X2, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X2, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U64(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U64(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U64(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U64(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U64(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U64(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U64(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U64(X1, X2) -> proper# X2, proper# head X -> head# proper X)
(proper# U64(X1, X2) -> proper# X2, proper# head X -> proper# X)
(proper# U64(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X2, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X2, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U64(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U64(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U64(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U64(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U64(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U64(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U64(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U64(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U64(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U64(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U64(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U64(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U64(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U64(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U64(X1, X2) -> proper# X2, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X2, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X2, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X2, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X2, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U64(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U64(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U64(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U64(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U64(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U64(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U64(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U64(X1, X2) -> proper# X2, proper# fst X -> fst# proper X)
(proper# U64(X1, X2) -> proper# X2, proper# fst X -> proper# X)
(proper# U64(X1, X2) -> proper# X2, proper# natsFrom X -> natsFrom# proper X)
(proper# U64(X1, X2) -> proper# X2, proper# natsFrom X -> proper# X)
(proper# U64(X1, X2) -> proper# X2, proper# s X -> s# proper X)
(proper# U64(X1, X2) -> proper# X2, proper# s X -> proper# X)
(proper# U64(X1, X2) -> proper# X2, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X2)
(proper# U64(X1, X2) -> proper# X2, proper# tail X -> tail# proper X)
(proper# U64(X1, X2) -> proper# X2, proper# tail X -> proper# X)
(proper# U64(X1, X2) -> proper# X2, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U64(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X1)
(proper# U64(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# snd X -> snd# proper X)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# snd X -> proper# X)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# splitAt(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# splitAt(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U22(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U22(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U21(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U21(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U32(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U32(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U31(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U31(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# head X -> head# proper X)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# head X -> proper# X)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# afterNth(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# afterNth(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U52(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U52(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U51(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U51(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U64(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U64(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# pair(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# pair(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# cons(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# cons(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U72(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U72(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U71(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U71(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# fst X -> fst# proper X)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# fst X -> proper# X)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# natsFrom X -> natsFrom# proper X)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# natsFrom X -> proper# X)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# s X -> s# proper X)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# s X -> proper# X)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# sel(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# sel(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# tail X -> tail# proper X)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# tail X -> proper# X)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# take(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X2, proper# take(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U51(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U51(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U51(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U51(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U51(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U51(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U51(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U51(X1, X2) -> proper# X2, proper# snd X -> snd# proper X)
(proper# U51(X1, X2) -> proper# X2, proper# snd X -> proper# X)
(proper# U51(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X2, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X2, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X2, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X2, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U51(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U51(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U51(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U51(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U51(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U51(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U51(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U51(X1, X2) -> proper# X2, proper# head X -> head# proper X)
(proper# U51(X1, X2) -> proper# X2, proper# head X -> proper# X)
(proper# U51(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X2, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X2, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U51(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U51(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U51(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U51(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U51(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U51(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U51(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U51(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U51(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U51(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U51(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U51(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U51(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U51(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U51(X1, X2) -> proper# X2, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X2, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X2, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X2, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X2, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U51(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U51(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U51(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U51(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U51(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U51(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U51(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U51(X1, X2) -> proper# X2, proper# fst X -> fst# proper X)
(proper# U51(X1, X2) -> proper# X2, proper# fst X -> proper# X)
(proper# U51(X1, X2) -> proper# X2, proper# natsFrom X -> natsFrom# proper X)
(proper# U51(X1, X2) -> proper# X2, proper# natsFrom X -> proper# X)
(proper# U51(X1, X2) -> proper# X2, proper# s X -> s# proper X)
(proper# U51(X1, X2) -> proper# X2, proper# s X -> proper# X)
(proper# U51(X1, X2) -> proper# X2, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X2)
(proper# U51(X1, X2) -> proper# X2, proper# tail X -> tail# proper X)
(proper# U51(X1, X2) -> proper# X2, proper# tail X -> proper# X)
(proper# U51(X1, X2) -> proper# X2, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U51(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X1)
(proper# U51(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# afterNth(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X3)
(proper# afterNth(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# afterNth(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X3)
(proper# afterNth(X1, X2) -> proper# X2, proper# snd X -> snd# proper X)
(proper# afterNth(X1, X2) -> proper# X2, proper# snd X -> proper# X)
(proper# afterNth(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X2, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X2, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X2, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X2, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# afterNth(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X3)
(proper# afterNth(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# afterNth(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X3)
(proper# afterNth(X1, X2) -> proper# X2, proper# head X -> head# proper X)
(proper# afterNth(X1, X2) -> proper# X2, proper# head X -> proper# X)
(proper# afterNth(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X2, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X2, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# afterNth(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# afterNth(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# afterNth(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# afterNth(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# afterNth(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# afterNth(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# afterNth(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# afterNth(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# afterNth(X1, X2) -> proper# X2, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X2, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X2, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X2, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X2, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# afterNth(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X3)
(proper# afterNth(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# afterNth(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X3)
(proper# afterNth(X1, X2) -> proper# X2, proper# fst X -> fst# proper X)
(proper# afterNth(X1, X2) -> proper# X2, proper# fst X -> proper# X)
(proper# afterNth(X1, X2) -> proper# X2, proper# natsFrom X -> natsFrom# proper X)
(proper# afterNth(X1, X2) -> proper# X2, proper# natsFrom X -> proper# X)
(proper# afterNth(X1, X2) -> proper# X2, proper# s X -> s# proper X)
(proper# afterNth(X1, X2) -> proper# X2, proper# s X -> proper# X)
(proper# afterNth(X1, X2) -> proper# X2, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X2)
(proper# afterNth(X1, X2) -> proper# X2, proper# tail X -> tail# proper X)
(proper# afterNth(X1, X2) -> proper# X2, proper# tail X -> proper# X)
(proper# afterNth(X1, X2) -> proper# X2, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# afterNth(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X1)
(proper# afterNth(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U42(X1, X2, X3) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U42(X1, X2, X3) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X2, proper# snd X -> snd# proper X)
(proper# U42(X1, X2, X3) -> proper# X2, proper# snd X -> proper# X)
(proper# U42(X1, X2, X3) -> proper# X2, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X2, proper# splitAt(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X2, proper# splitAt(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X2, proper# U22(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U22(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X2, proper# U21(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U21(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X2, proper# U32(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U32(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X2, proper# U31(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U31(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U42(X1, X2, X3) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U42(X1, X2, X3) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X2, proper# head X -> head# proper X)
(proper# U42(X1, X2, X3) -> proper# X2, proper# head X -> proper# X)
(proper# U42(X1, X2, X3) -> proper# X2, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X2, proper# afterNth(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X2, proper# afterNth(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X2, proper# U52(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U52(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X2, proper# U51(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U51(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U42(X1, X2, X3) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U42(X1, X2, X3) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U42(X1, X2, X3) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X2, proper# U64(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U64(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X2, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X2, proper# pair(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X2, proper# pair(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X2, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X2, proper# cons(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X2, proper# cons(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X2, proper# U72(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U72(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X2, proper# U71(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U71(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U42(X1, X2, X3) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U42(X1, X2, X3) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U42(X1, X2, X3) -> proper# X2, proper# fst X -> fst# proper X)
(proper# U42(X1, X2, X3) -> proper# X2, proper# fst X -> proper# X)
(proper# U42(X1, X2, X3) -> proper# X2, proper# natsFrom X -> natsFrom# proper X)
(proper# U42(X1, X2, X3) -> proper# X2, proper# natsFrom X -> proper# X)
(proper# U42(X1, X2, X3) -> proper# X2, proper# s X -> s# proper X)
(proper# U42(X1, X2, X3) -> proper# X2, proper# s X -> proper# X)
(proper# U42(X1, X2, X3) -> proper# X2, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X2, proper# sel(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X2, proper# sel(X1, X2) -> proper# X2)
(proper# U42(X1, X2, X3) -> proper# X2, proper# tail X -> tail# proper X)
(proper# U42(X1, X2, X3) -> proper# X2, proper# tail X -> proper# X)
(proper# U42(X1, X2, X3) -> proper# X2, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U42(X1, X2, X3) -> proper# X2, proper# take(X1, X2) -> proper# X1)
(proper# U42(X1, X2, X3) -> proper# X2, proper# take(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U32(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U32(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U32(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U32(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U32(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U32(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U32(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U32(X1, X2) -> proper# X2, proper# snd X -> snd# proper X)
(proper# U32(X1, X2) -> proper# X2, proper# snd X -> proper# X)
(proper# U32(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X2, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X2, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X2, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X2, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U32(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U32(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U32(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U32(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U32(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U32(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U32(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U32(X1, X2) -> proper# X2, proper# head X -> head# proper X)
(proper# U32(X1, X2) -> proper# X2, proper# head X -> proper# X)
(proper# U32(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X2, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X2, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U32(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U32(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U32(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U32(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U32(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U32(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U32(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U32(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U32(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U32(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U32(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U32(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U32(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U32(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U32(X1, X2) -> proper# X2, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X2, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X2, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X2, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X2, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U32(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U32(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U32(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U32(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U32(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U32(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U32(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U32(X1, X2) -> proper# X2, proper# fst X -> fst# proper X)
(proper# U32(X1, X2) -> proper# X2, proper# fst X -> proper# X)
(proper# U32(X1, X2) -> proper# X2, proper# natsFrom X -> natsFrom# proper X)
(proper# U32(X1, X2) -> proper# X2, proper# natsFrom X -> proper# X)
(proper# U32(X1, X2) -> proper# X2, proper# s X -> s# proper X)
(proper# U32(X1, X2) -> proper# X2, proper# s X -> proper# X)
(proper# U32(X1, X2) -> proper# X2, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X2)
(proper# U32(X1, X2) -> proper# X2, proper# tail X -> tail# proper X)
(proper# U32(X1, X2) -> proper# X2, proper# tail X -> proper# X)
(proper# U32(X1, X2) -> proper# X2, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U32(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X1)
(proper# U32(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U22(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U22(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U22(X1, X2) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U22(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U22(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U22(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U22(X1, X2) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U22(X1, X2) -> proper# X2, proper# snd X -> snd# proper X)
(proper# U22(X1, X2) -> proper# X2, proper# snd X -> proper# X)
(proper# U22(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X2, proper# splitAt(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X2, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X2, proper# U22(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X2, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X2, proper# U21(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X2, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X2, proper# U32(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X2, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X2, proper# U31(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U22(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U22(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U22(X1, X2) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U22(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U22(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U22(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U22(X1, X2) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U22(X1, X2) -> proper# X2, proper# head X -> head# proper X)
(proper# U22(X1, X2) -> proper# X2, proper# head X -> proper# X)
(proper# U22(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X2, proper# afterNth(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X2, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X2, proper# U52(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X2, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X2, proper# U51(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U22(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U22(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U22(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U22(X1, X2) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U22(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U22(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U22(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U22(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U22(X1, X2) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U22(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U22(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U22(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U22(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U22(X1, X2) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U22(X1, X2) -> proper# X2, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X2, proper# U64(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X2, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X2, proper# pair(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X2, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X2, proper# cons(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X2, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X2, proper# U72(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X2, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X2, proper# U71(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U22(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U22(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U22(X1, X2) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U22(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U22(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U22(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U22(X1, X2) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U22(X1, X2) -> proper# X2, proper# fst X -> fst# proper X)
(proper# U22(X1, X2) -> proper# X2, proper# fst X -> proper# X)
(proper# U22(X1, X2) -> proper# X2, proper# natsFrom X -> natsFrom# proper X)
(proper# U22(X1, X2) -> proper# X2, proper# natsFrom X -> proper# X)
(proper# U22(X1, X2) -> proper# X2, proper# s X -> s# proper X)
(proper# U22(X1, X2) -> proper# X2, proper# s X -> proper# X)
(proper# U22(X1, X2) -> proper# X2, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X2)
(proper# U22(X1, X2) -> proper# X2, proper# tail X -> tail# proper X)
(proper# U22(X1, X2) -> proper# X2, proper# tail X -> proper# X)
(proper# U22(X1, X2) -> proper# X2, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U22(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X1)
(proper# U22(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U11(X1, X2, X3) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U11(X1, X2, X3) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X2, proper# snd X -> snd# proper X)
(proper# U11(X1, X2, X3) -> proper# X2, proper# snd X -> proper# X)
(proper# U11(X1, X2, X3) -> proper# X2, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X2, proper# splitAt(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X2, proper# splitAt(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X2, proper# U22(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U22(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X2, proper# U21(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U21(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X2, proper# U32(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U32(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X2, proper# U31(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U31(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U11(X1, X2, X3) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U11(X1, X2, X3) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X2, proper# head X -> head# proper X)
(proper# U11(X1, X2, X3) -> proper# X2, proper# head X -> proper# X)
(proper# U11(X1, X2, X3) -> proper# X2, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X2, proper# afterNth(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X2, proper# afterNth(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X2, proper# U52(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U52(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X2, proper# U51(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U51(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U11(X1, X2, X3) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U11(X1, X2, X3) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U11(X1, X2, X3) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X2, proper# U64(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U64(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X2, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X2, proper# pair(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X2, proper# pair(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X2, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X2, proper# cons(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X2, proper# cons(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X2, proper# U72(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U72(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X2, proper# U71(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U71(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U11(X1, X2, X3) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U11(X1, X2, X3) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X2, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U11(X1, X2, X3) -> proper# X2, proper# fst X -> fst# proper X)
(proper# U11(X1, X2, X3) -> proper# X2, proper# fst X -> proper# X)
(proper# U11(X1, X2, X3) -> proper# X2, proper# natsFrom X -> natsFrom# proper X)
(proper# U11(X1, X2, X3) -> proper# X2, proper# natsFrom X -> proper# X)
(proper# U11(X1, X2, X3) -> proper# X2, proper# s X -> s# proper X)
(proper# U11(X1, X2, X3) -> proper# X2, proper# s X -> proper# X)
(proper# U11(X1, X2, X3) -> proper# X2, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X2, proper# sel(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X2, proper# sel(X1, X2) -> proper# X2)
(proper# U11(X1, X2, X3) -> proper# X2, proper# tail X -> tail# proper X)
(proper# U11(X1, X2, X3) -> proper# X2, proper# tail X -> proper# X)
(proper# U11(X1, X2, X3) -> proper# X2, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U11(X1, X2, X3) -> proper# X2, proper# take(X1, X2) -> proper# X1)
(proper# U11(X1, X2, X3) -> proper# X2, proper# take(X1, X2) -> proper# X2)
(active# take(X1, X2) -> active# X2, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# take(X1, X2) -> active# X2, active# U12(X1, X2, X3) -> active# X1)
(active# take(X1, X2) -> active# X2, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# take(X1, X2) -> active# X2, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# take(X1, X2) -> active# X2, active# U11(X1, X2, X3) -> active# X1)
(active# take(X1, X2) -> active# X2, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# take(X1, X2) -> active# X2, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# take(X1, X2) -> active# X2, active# snd X -> active# X)
(active# take(X1, X2) -> active# X2, active# snd X -> snd# active X)
(active# take(X1, X2) -> active# X2, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# take(X1, X2) -> active# X2, active# splitAt(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X2, active# splitAt(X1, X2) -> active# X2)
(active# take(X1, X2) -> active# X2, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# take(X1, X2) -> active# X2, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# take(X1, X2) -> active# X2, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# take(X1, X2) -> active# X2, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# take(X1, X2) -> active# X2, active# U22(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X2, active# U22(X1, X2) -> U22#(active X1, X2))
(active# take(X1, X2) -> active# X2, active# U21(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X2, active# U21(X1, X2) -> U21#(active X1, X2))
(active# take(X1, X2) -> active# X2, active# U21(tt(), X) -> U22#(tt(), X))
(active# take(X1, X2) -> active# X2, active# U32(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X2, active# U32(X1, X2) -> U32#(active X1, X2))
(active# take(X1, X2) -> active# X2, active# U31(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X2, active# U31(X1, X2) -> U31#(active X1, X2))
(active# take(X1, X2) -> active# X2, active# U31(tt(), N) -> U32#(tt(), N))
(active# take(X1, X2) -> active# X2, active# U42(X1, X2, X3) -> active# X1)
(active# take(X1, X2) -> active# X2, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# take(X1, X2) -> active# X2, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# take(X1, X2) -> active# X2, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# take(X1, X2) -> active# X2, active# U41(X1, X2, X3) -> active# X1)
(active# take(X1, X2) -> active# X2, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# take(X1, X2) -> active# X2, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# take(X1, X2) -> active# X2, active# head X -> active# X)
(active# take(X1, X2) -> active# X2, active# head X -> head# active X)
(active# take(X1, X2) -> active# X2, active# head cons(N, XS) -> U31#(tt(), N))
(active# take(X1, X2) -> active# X2, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# take(X1, X2) -> active# X2, active# afterNth(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X2, active# afterNth(X1, X2) -> active# X2)
(active# take(X1, X2) -> active# X2, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# take(X1, X2) -> active# X2, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# take(X1, X2) -> active# X2, active# U52(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X2, active# U52(X1, X2) -> U52#(active X1, X2))
(active# take(X1, X2) -> active# X2, active# U51(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X2, active# U51(X1, X2) -> U51#(active X1, X2))
(active# take(X1, X2) -> active# X2, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# take(X1, X2) -> active# X2, active# U62(X1, X2, X3, X4) -> active# X1)
(active# take(X1, X2) -> active# X2, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# take(X1, X2) -> active# X2, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# take(X1, X2) -> active# X2, active# U61(X1, X2, X3, X4) -> active# X1)
(active# take(X1, X2) -> active# X2, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# take(X1, X2) -> active# X2, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# take(X1, X2) -> active# X2, active# U63(X1, X2, X3, X4) -> active# X1)
(active# take(X1, X2) -> active# X2, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# take(X1, X2) -> active# X2, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# take(X1, X2) -> active# X2, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# take(X1, X2) -> active# X2, active# U64(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X2, active# U64(X1, X2) -> U64#(active X1, X2))
(active# take(X1, X2) -> active# X2, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# take(X1, X2) -> active# X2, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# take(X1, X2) -> active# X2, active# pair(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X2, active# pair(X1, X2) -> active# X2)
(active# take(X1, X2) -> active# X2, active# pair(X1, X2) -> pair#(X1, active X2))
(active# take(X1, X2) -> active# X2, active# pair(X1, X2) -> pair#(active X1, X2))
(active# take(X1, X2) -> active# X2, active# cons(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X2, active# cons(X1, X2) -> cons#(active X1, X2))
(active# take(X1, X2) -> active# X2, active# U72(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X2, active# U72(X1, X2) -> U72#(active X1, X2))
(active# take(X1, X2) -> active# X2, active# U71(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X2, active# U71(X1, X2) -> U71#(active X1, X2))
(active# take(X1, X2) -> active# X2, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# take(X1, X2) -> active# X2, active# U82(X1, X2, X3) -> active# X1)
(active# take(X1, X2) -> active# X2, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# take(X1, X2) -> active# X2, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# take(X1, X2) -> active# X2, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# take(X1, X2) -> active# X2, active# U81(X1, X2, X3) -> active# X1)
(active# take(X1, X2) -> active# X2, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# take(X1, X2) -> active# X2, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# take(X1, X2) -> active# X2, active# fst X -> active# X)
(active# take(X1, X2) -> active# X2, active# fst X -> fst# active X)
(active# take(X1, X2) -> active# X2, active# fst pair(X, Y) -> U21#(tt(), X))
(active# take(X1, X2) -> active# X2, active# natsFrom N -> cons#(N, natsFrom s N))
(active# take(X1, X2) -> active# X2, active# natsFrom N -> natsFrom# s N)
(active# take(X1, X2) -> active# X2, active# natsFrom N -> s# N)
(active# take(X1, X2) -> active# X2, active# natsFrom X -> active# X)
(active# take(X1, X2) -> active# X2, active# natsFrom X -> natsFrom# active X)
(active# take(X1, X2) -> active# X2, active# s X -> active# X)
(active# take(X1, X2) -> active# X2, active# s X -> s# active X)
(active# take(X1, X2) -> active# X2, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# take(X1, X2) -> active# X2, active# sel(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X2, active# sel(X1, X2) -> active# X2)
(active# take(X1, X2) -> active# X2, active# sel(X1, X2) -> sel#(X1, active X2))
(active# take(X1, X2) -> active# X2, active# sel(X1, X2) -> sel#(active X1, X2))
(active# take(X1, X2) -> active# X2, active# tail X -> active# X)
(active# take(X1, X2) -> active# X2, active# tail X -> tail# active X)
(active# take(X1, X2) -> active# X2, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# take(X1, X2) -> active# X2, active# take(N, XS) -> U81#(tt(), N, XS))
(active# take(X1, X2) -> active# X2, active# take(X1, X2) -> active# X1)
(active# take(X1, X2) -> active# X2, active# take(X1, X2) -> active# X2)
(active# take(X1, X2) -> active# X2, active# take(X1, X2) -> take#(X1, active X2))
(active# take(X1, X2) -> active# X2, active# take(X1, X2) -> take#(active X1, X2))
(active# pair(X1, X2) -> active# X2, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# pair(X1, X2) -> active# X2, active# U12(X1, X2, X3) -> active# X1)
(active# pair(X1, X2) -> active# X2, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# pair(X1, X2) -> active# X2, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# pair(X1, X2) -> active# X2, active# U11(X1, X2, X3) -> active# X1)
(active# pair(X1, X2) -> active# X2, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# pair(X1, X2) -> active# X2, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# pair(X1, X2) -> active# X2, active# snd X -> active# X)
(active# pair(X1, X2) -> active# X2, active# snd X -> snd# active X)
(active# pair(X1, X2) -> active# X2, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# pair(X1, X2) -> active# X2, active# splitAt(X1, X2) -> active# X1)
(active# pair(X1, X2) -> active# X2, active# splitAt(X1, X2) -> active# X2)
(active# pair(X1, X2) -> active# X2, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# pair(X1, X2) -> active# X2, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# pair(X1, X2) -> active# X2, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# pair(X1, X2) -> active# X2, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# pair(X1, X2) -> active# X2, active# U22(X1, X2) -> active# X1)
(active# pair(X1, X2) -> active# X2, active# U22(X1, X2) -> U22#(active X1, X2))
(active# pair(X1, X2) -> active# X2, active# U21(X1, X2) -> active# X1)
(active# pair(X1, X2) -> active# X2, active# U21(X1, X2) -> U21#(active X1, X2))
(active# pair(X1, X2) -> active# X2, active# U21(tt(), X) -> U22#(tt(), X))
(active# pair(X1, X2) -> active# X2, active# U32(X1, X2) -> active# X1)
(active# pair(X1, X2) -> active# X2, active# U32(X1, X2) -> U32#(active X1, X2))
(active# pair(X1, X2) -> active# X2, active# U31(X1, X2) -> active# X1)
(active# pair(X1, X2) -> active# X2, active# U31(X1, X2) -> U31#(active X1, X2))
(active# pair(X1, X2) -> active# X2, active# U31(tt(), N) -> U32#(tt(), N))
(active# pair(X1, X2) -> active# X2, active# U42(X1, X2, X3) -> active# X1)
(active# pair(X1, X2) -> active# X2, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# pair(X1, X2) -> active# X2, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# pair(X1, X2) -> active# X2, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# pair(X1, X2) -> active# X2, active# U41(X1, X2, X3) -> active# X1)
(active# pair(X1, X2) -> active# X2, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# pair(X1, X2) -> active# X2, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# pair(X1, X2) -> active# X2, active# head X -> active# X)
(active# pair(X1, X2) -> active# X2, active# head X -> head# active X)
(active# pair(X1, X2) -> active# X2, active# head cons(N, XS) -> U31#(tt(), N))
(active# pair(X1, X2) -> active# X2, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# pair(X1, X2) -> active# X2, active# afterNth(X1, X2) -> active# X1)
(active# pair(X1, X2) -> active# X2, active# afterNth(X1, X2) -> active# X2)
(active# pair(X1, X2) -> active# X2, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# pair(X1, X2) -> active# X2, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# pair(X1, X2) -> active# X2, active# U52(X1, X2) -> active# X1)
(active# pair(X1, X2) -> active# X2, active# U52(X1, X2) -> U52#(active X1, X2))
(active# pair(X1, X2) -> active# X2, active# U51(X1, X2) -> active# X1)
(active# pair(X1, X2) -> active# X2, active# U51(X1, X2) -> U51#(active X1, X2))
(active# pair(X1, X2) -> active# X2, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# pair(X1, X2) -> active# X2, active# U62(X1, X2, X3, X4) -> active# X1)
(active# pair(X1, X2) -> active# X2, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# pair(X1, X2) -> active# X2, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# pair(X1, X2) -> active# X2, active# U61(X1, X2, X3, X4) -> active# X1)
(active# pair(X1, X2) -> active# X2, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# pair(X1, X2) -> active# X2, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# pair(X1, X2) -> active# X2, active# U63(X1, X2, X3, X4) -> active# X1)
(active# pair(X1, X2) -> active# X2, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# pair(X1, X2) -> active# X2, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# pair(X1, X2) -> active# X2, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# pair(X1, X2) -> active# X2, active# U64(X1, X2) -> active# X1)
(active# pair(X1, X2) -> active# X2, active# U64(X1, X2) -> U64#(active X1, X2))
(active# pair(X1, X2) -> active# X2, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# pair(X1, X2) -> active# X2, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# pair(X1, X2) -> active# X2, active# pair(X1, X2) -> active# X1)
(active# pair(X1, X2) -> active# X2, active# pair(X1, X2) -> active# X2)
(active# pair(X1, X2) -> active# X2, active# pair(X1, X2) -> pair#(X1, active X2))
(active# pair(X1, X2) -> active# X2, active# pair(X1, X2) -> pair#(active X1, X2))
(active# pair(X1, X2) -> active# X2, active# cons(X1, X2) -> active# X1)
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(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U64(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U64(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# pair(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# pair(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# cons(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# cons(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U72(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U72(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U71(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U71(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# fst X -> fst# proper X)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# fst X -> proper# X)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# natsFrom X -> natsFrom# proper X)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# natsFrom X -> proper# X)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# s X -> s# proper X)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# s X -> proper# X)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# sel(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# sel(X1, X2) -> proper# X2)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# tail X -> tail# proper X)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# tail X -> proper# X)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# take(X1, X2) -> proper# X1)
(proper# U61(X1, X2, X3, X4) -> proper# X4, proper# take(X1, X2) -> proper# X2)
(active# natsFrom N -> natsFrom# s N, natsFrom# mark X -> natsFrom# X)
(active# natsFrom N -> natsFrom# s N, natsFrom# ok X -> natsFrom# X)
(top# mark X -> top# proper X, top# mark X -> proper# X)
(top# mark X -> top# proper X, top# mark X -> top# proper X)
(top# mark X -> top# proper X, top# ok X -> active# X)
(top# mark X -> top# proper X, top# ok X -> top# active X)
(proper# s X -> s# proper X, s# mark X -> s# X)
(proper# s X -> s# proper X, s# ok X -> s# X)
(proper# fst X -> fst# proper X, fst# mark X -> fst# X)
(proper# fst X -> fst# proper X, fst# ok X -> fst# X)
(proper# snd X -> snd# proper X, snd# mark X -> snd# X)
(proper# snd X -> snd# proper X, snd# ok X -> snd# X)
(active# s X -> s# active X, s# mark X -> s# X)
(active# s X -> s# active X, s# ok X -> s# X)
(active# fst X -> fst# active X, fst# mark X -> fst# X)
(active# fst X -> fst# active X, fst# ok X -> fst# X)
(active# snd X -> snd# active X, snd# mark X -> snd# X)
(active# snd X -> snd# active X, snd# ok X -> snd# X)
(active# U31(tt(), N) -> U32#(tt(), N), U32#(mark X1, X2) -> U32#(X1, X2))
(active# U31(tt(), N) -> U32#(tt(), N), U32#(ok X1, ok X2) -> U32#(X1, X2))
(active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS), U63#(mark X1, X2, X3, X4) -> U63#(X1, X2, X3, X4))
(active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS), U63#(ok X1, ok X2, ok X3, ok X4) -> U63#(X1, X2, X3, X4))
(U63#(ok X1, ok X2, ok X3, ok X4) -> U63#(X1, X2, X3, X4), U63#(mark X1, X2, X3, X4) -> U63#(X1, X2, X3, X4))
(U63#(ok X1, ok X2, ok X3, ok X4) -> U63#(X1, X2, X3, X4), U63#(ok X1, ok X2, ok X3, ok X4) -> U63#(X1, X2, X3, X4))
(U61#(ok X1, ok X2, ok X3, ok X4) -> U61#(X1, X2, X3, X4), U61#(mark X1, X2, X3, X4) -> U61#(X1, X2, X3, X4))
(U61#(ok X1, ok X2, ok X3, ok X4) -> U61#(X1, X2, X3, X4), U61#(ok X1, ok X2, ok X3, ok X4) -> U61#(X1, X2, X3, X4))
(U62#(ok X1, ok X2, ok X3, ok X4) -> U62#(X1, X2, X3, X4), U62#(mark X1, X2, X3, X4) -> U62#(X1, X2, X3, X4))
(U62#(ok X1, ok X2, ok X3, ok X4) -> U62#(X1, X2, X3, X4), U62#(ok X1, ok X2, ok X3, ok X4) -> U62#(X1, X2, X3, X4))
(active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4), U63#(mark X1, X2, X3, X4) -> U63#(X1, X2, X3, X4))
(active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4), U63#(ok X1, ok X2, ok X3, ok X4) -> U63#(X1, X2, X3, X4))
(active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4), U62#(mark X1, X2, X3, X4) -> U62#(X1, X2, X3, X4))
(active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4), U62#(ok X1, ok X2, ok X3, ok X4) -> U62#(X1, X2, X3, X4))
(proper# sel(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# sel(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X1)
(proper# sel(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X2)
(proper# sel(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X3)
(proper# sel(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# sel(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X1)
(proper# sel(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X2)
(proper# sel(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X3)
(proper# sel(X1, X2) -> proper# X1, proper# snd X -> snd# proper X)
(proper# sel(X1, X2) -> proper# X1, proper# snd X -> proper# X)
(proper# sel(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X1, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X1, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X1, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X1, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# sel(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X1)
(proper# sel(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X2)
(proper# sel(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X3)
(proper# sel(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# sel(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X1)
(proper# sel(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X2)
(proper# sel(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X3)
(proper# sel(X1, X2) -> proper# X1, proper# head X -> head# proper X)
(proper# sel(X1, X2) -> proper# X1, proper# head X -> proper# X)
(proper# sel(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X1, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X1, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# sel(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# sel(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# sel(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# sel(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# sel(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# sel(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# sel(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# sel(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# sel(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# sel(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# sel(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# sel(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# sel(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# sel(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# sel(X1, X2) -> proper# X1, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X1, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X1, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X1, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# sel(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X1)
(proper# sel(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X2)
(proper# sel(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X3)
(proper# sel(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# sel(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X1)
(proper# sel(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X2)
(proper# sel(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X3)
(proper# sel(X1, X2) -> proper# X1, proper# fst X -> fst# proper X)
(proper# sel(X1, X2) -> proper# X1, proper# fst X -> proper# X)
(proper# sel(X1, X2) -> proper# X1, proper# natsFrom X -> natsFrom# proper X)
(proper# sel(X1, X2) -> proper# X1, proper# natsFrom X -> proper# X)
(proper# sel(X1, X2) -> proper# X1, proper# s X -> s# proper X)
(proper# sel(X1, X2) -> proper# X1, proper# s X -> proper# X)
(proper# sel(X1, X2) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X2)
(proper# sel(X1, X2) -> proper# X1, proper# tail X -> tail# proper X)
(proper# sel(X1, X2) -> proper# X1, proper# tail X -> proper# X)
(proper# sel(X1, X2) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# sel(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X1)
(proper# sel(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U82(X1, X2, X3) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U82(X1, X2, X3) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X1, proper# snd X -> snd# proper X)
(proper# U82(X1, X2, X3) -> proper# X1, proper# snd X -> proper# X)
(proper# U82(X1, X2, X3) -> proper# X1, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X1, proper# splitAt(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X1, proper# splitAt(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X1, proper# U22(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U22(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X1, proper# U21(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U21(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X1, proper# U32(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U32(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X1, proper# U31(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U31(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U82(X1, X2, X3) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U82(X1, X2, X3) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X1, proper# head X -> head# proper X)
(proper# U82(X1, X2, X3) -> proper# X1, proper# head X -> proper# X)
(proper# U82(X1, X2, X3) -> proper# X1, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X1, proper# afterNth(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X1, proper# afterNth(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X1, proper# U52(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U52(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X1, proper# U51(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U51(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U82(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U82(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U82(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X1, proper# U64(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U64(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X1, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X1, proper# pair(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X1, proper# pair(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X1, proper# cons(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X1, proper# cons(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X1, proper# U72(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U72(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X1, proper# U71(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U71(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U82(X1, X2, X3) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U82(X1, X2, X3) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U82(X1, X2, X3) -> proper# X1, proper# fst X -> fst# proper X)
(proper# U82(X1, X2, X3) -> proper# X1, proper# fst X -> proper# X)
(proper# U82(X1, X2, X3) -> proper# X1, proper# natsFrom X -> natsFrom# proper X)
(proper# U82(X1, X2, X3) -> proper# X1, proper# natsFrom X -> proper# X)
(proper# U82(X1, X2, X3) -> proper# X1, proper# s X -> s# proper X)
(proper# U82(X1, X2, X3) -> proper# X1, proper# s X -> proper# X)
(proper# U82(X1, X2, X3) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X1, proper# sel(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X1, proper# sel(X1, X2) -> proper# X2)
(proper# U82(X1, X2, X3) -> proper# X1, proper# tail X -> tail# proper X)
(proper# U82(X1, X2, X3) -> proper# X1, proper# tail X -> proper# X)
(proper# U82(X1, X2, X3) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U82(X1, X2, X3) -> proper# X1, proper# take(X1, X2) -> proper# X1)
(proper# U82(X1, X2, X3) -> proper# X1, proper# take(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U72(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U72(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U72(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U72(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U72(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U72(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U72(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U72(X1, X2) -> proper# X1, proper# snd X -> snd# proper X)
(proper# U72(X1, X2) -> proper# X1, proper# snd X -> proper# X)
(proper# U72(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X1, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X1, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X1, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X1, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U72(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U72(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U72(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U72(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U72(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U72(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U72(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U72(X1, X2) -> proper# X1, proper# head X -> head# proper X)
(proper# U72(X1, X2) -> proper# X1, proper# head X -> proper# X)
(proper# U72(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X1, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X1, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U72(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U72(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U72(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U72(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U72(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U72(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U72(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U72(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U72(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U72(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U72(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U72(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U72(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U72(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U72(X1, X2) -> proper# X1, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X1, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X1, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X1, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U72(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U72(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U72(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U72(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U72(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U72(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U72(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U72(X1, X2) -> proper# X1, proper# fst X -> fst# proper X)
(proper# U72(X1, X2) -> proper# X1, proper# fst X -> proper# X)
(proper# U72(X1, X2) -> proper# X1, proper# natsFrom X -> natsFrom# proper X)
(proper# U72(X1, X2) -> proper# X1, proper# natsFrom X -> proper# X)
(proper# U72(X1, X2) -> proper# X1, proper# s X -> s# proper X)
(proper# U72(X1, X2) -> proper# X1, proper# s X -> proper# X)
(proper# U72(X1, X2) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X2)
(proper# U72(X1, X2) -> proper# X1, proper# tail X -> tail# proper X)
(proper# U72(X1, X2) -> proper# X1, proper# tail X -> proper# X)
(proper# U72(X1, X2) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U72(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X1)
(proper# U72(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# pair(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X1)
(proper# pair(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X2)
(proper# pair(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X3)
(proper# pair(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# pair(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X1)
(proper# pair(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X2)
(proper# pair(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X3)
(proper# pair(X1, X2) -> proper# X1, proper# snd X -> snd# proper X)
(proper# pair(X1, X2) -> proper# X1, proper# snd X -> proper# X)
(proper# pair(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X1, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X1, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X1, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X1, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# pair(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X1)
(proper# pair(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X2)
(proper# pair(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X3)
(proper# pair(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# pair(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X1)
(proper# pair(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X2)
(proper# pair(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X3)
(proper# pair(X1, X2) -> proper# X1, proper# head X -> head# proper X)
(proper# pair(X1, X2) -> proper# X1, proper# head X -> proper# X)
(proper# pair(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X1, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X1, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# pair(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# pair(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# pair(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# pair(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# pair(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# pair(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# pair(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# pair(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# pair(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# pair(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# pair(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# pair(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# pair(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# pair(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# pair(X1, X2) -> proper# X1, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X1, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X1, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X1, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# pair(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X1)
(proper# pair(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X2)
(proper# pair(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X3)
(proper# pair(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# pair(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X1)
(proper# pair(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X2)
(proper# pair(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X3)
(proper# pair(X1, X2) -> proper# X1, proper# fst X -> fst# proper X)
(proper# pair(X1, X2) -> proper# X1, proper# fst X -> proper# X)
(proper# pair(X1, X2) -> proper# X1, proper# natsFrom X -> natsFrom# proper X)
(proper# pair(X1, X2) -> proper# X1, proper# natsFrom X -> proper# X)
(proper# pair(X1, X2) -> proper# X1, proper# s X -> s# proper X)
(proper# pair(X1, X2) -> proper# X1, proper# s X -> proper# X)
(proper# pair(X1, X2) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X2)
(proper# pair(X1, X2) -> proper# X1, proper# tail X -> tail# proper X)
(proper# pair(X1, X2) -> proper# X1, proper# tail X -> proper# X)
(proper# pair(X1, X2) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# pair(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X1)
(proper# pair(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# snd X -> snd# proper X)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# snd X -> proper# X)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# splitAt(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# splitAt(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U22(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U22(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U21(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U21(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U32(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U32(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U31(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U31(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# head X -> head# proper X)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# head X -> proper# X)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# afterNth(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# afterNth(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U52(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U52(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U51(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U51(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U64(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U64(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# pair(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# pair(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# cons(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# cons(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U72(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U72(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U71(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U71(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# fst X -> fst# proper X)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# fst X -> proper# X)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# natsFrom X -> natsFrom# proper X)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# natsFrom X -> proper# X)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# s X -> s# proper X)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# s X -> proper# X)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# sel(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# sel(X1, X2) -> proper# X2)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# tail X -> tail# proper X)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# tail X -> proper# X)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# take(X1, X2) -> proper# X1)
(proper# U63(X1, X2, X3, X4) -> proper# X1, proper# take(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# snd X -> snd# proper X)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# snd X -> proper# X)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# splitAt(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# splitAt(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U22(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U22(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U21(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U21(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U32(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U32(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U31(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U31(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# head X -> head# proper X)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# head X -> proper# X)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# afterNth(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# afterNth(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U52(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U52(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U51(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U51(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U64(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U64(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# pair(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# pair(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# cons(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# cons(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U72(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U72(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U71(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U71(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# fst X -> fst# proper X)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# fst X -> proper# X)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# natsFrom X -> natsFrom# proper X)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# natsFrom X -> proper# X)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# s X -> s# proper X)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# s X -> proper# X)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# sel(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# sel(X1, X2) -> proper# X2)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# tail X -> tail# proper X)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# tail X -> proper# X)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# take(X1, X2) -> proper# X1)
(proper# U62(X1, X2, X3, X4) -> proper# X1, proper# take(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U52(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U52(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U52(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U52(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U52(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U52(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U52(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U52(X1, X2) -> proper# X1, proper# snd X -> snd# proper X)
(proper# U52(X1, X2) -> proper# X1, proper# snd X -> proper# X)
(proper# U52(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X1, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X1, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X1, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X1, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U52(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U52(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U52(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U52(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U52(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U52(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U52(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U52(X1, X2) -> proper# X1, proper# head X -> head# proper X)
(proper# U52(X1, X2) -> proper# X1, proper# head X -> proper# X)
(proper# U52(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X1, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X1, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U52(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U52(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U52(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U52(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U52(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U52(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U52(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U52(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U52(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U52(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U52(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U52(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U52(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U52(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U52(X1, X2) -> proper# X1, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X1, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X1, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X1, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U52(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U52(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U52(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U52(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U52(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U52(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U52(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U52(X1, X2) -> proper# X1, proper# fst X -> fst# proper X)
(proper# U52(X1, X2) -> proper# X1, proper# fst X -> proper# X)
(proper# U52(X1, X2) -> proper# X1, proper# natsFrom X -> natsFrom# proper X)
(proper# U52(X1, X2) -> proper# X1, proper# natsFrom X -> proper# X)
(proper# U52(X1, X2) -> proper# X1, proper# s X -> s# proper X)
(proper# U52(X1, X2) -> proper# X1, proper# s X -> proper# X)
(proper# U52(X1, X2) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X2)
(proper# U52(X1, X2) -> proper# X1, proper# tail X -> tail# proper X)
(proper# U52(X1, X2) -> proper# X1, proper# tail X -> proper# X)
(proper# U52(X1, X2) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U52(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X1)
(proper# U52(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U41(X1, X2, X3) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U41(X1, X2, X3) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X1, proper# snd X -> snd# proper X)
(proper# U41(X1, X2, X3) -> proper# X1, proper# snd X -> proper# X)
(proper# U41(X1, X2, X3) -> proper# X1, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X1, proper# splitAt(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X1, proper# splitAt(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X1, proper# U22(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U22(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X1, proper# U21(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U21(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X1, proper# U32(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U32(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X1, proper# U31(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U31(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U41(X1, X2, X3) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U41(X1, X2, X3) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X1, proper# head X -> head# proper X)
(proper# U41(X1, X2, X3) -> proper# X1, proper# head X -> proper# X)
(proper# U41(X1, X2, X3) -> proper# X1, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X1, proper# afterNth(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X1, proper# afterNth(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X1, proper# U52(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U52(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X1, proper# U51(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U51(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U41(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U41(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U41(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X1, proper# U64(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U64(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X1, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X1, proper# pair(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X1, proper# pair(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X1, proper# cons(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X1, proper# cons(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X1, proper# U72(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U72(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X1, proper# U71(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U71(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U41(X1, X2, X3) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U41(X1, X2, X3) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U41(X1, X2, X3) -> proper# X1, proper# fst X -> fst# proper X)
(proper# U41(X1, X2, X3) -> proper# X1, proper# fst X -> proper# X)
(proper# U41(X1, X2, X3) -> proper# X1, proper# natsFrom X -> natsFrom# proper X)
(proper# U41(X1, X2, X3) -> proper# X1, proper# natsFrom X -> proper# X)
(proper# U41(X1, X2, X3) -> proper# X1, proper# s X -> s# proper X)
(proper# U41(X1, X2, X3) -> proper# X1, proper# s X -> proper# X)
(proper# U41(X1, X2, X3) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X1, proper# sel(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X1, proper# sel(X1, X2) -> proper# X2)
(proper# U41(X1, X2, X3) -> proper# X1, proper# tail X -> tail# proper X)
(proper# U41(X1, X2, X3) -> proper# X1, proper# tail X -> proper# X)
(proper# U41(X1, X2, X3) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U41(X1, X2, X3) -> proper# X1, proper# take(X1, X2) -> proper# X1)
(proper# U41(X1, X2, X3) -> proper# X1, proper# take(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U31(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U31(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U31(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U31(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U31(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U31(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U31(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U31(X1, X2) -> proper# X1, proper# snd X -> snd# proper X)
(proper# U31(X1, X2) -> proper# X1, proper# snd X -> proper# X)
(proper# U31(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X1, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X1, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X1, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X1, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U31(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U31(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U31(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U31(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U31(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U31(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U31(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U31(X1, X2) -> proper# X1, proper# head X -> head# proper X)
(proper# U31(X1, X2) -> proper# X1, proper# head X -> proper# X)
(proper# U31(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X1, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X1, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U31(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U31(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U31(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U31(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U31(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U31(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U31(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U31(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U31(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U31(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U31(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U31(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U31(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U31(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U31(X1, X2) -> proper# X1, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X1, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X1, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X1, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U31(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U31(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U31(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U31(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U31(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U31(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U31(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U31(X1, X2) -> proper# X1, proper# fst X -> fst# proper X)
(proper# U31(X1, X2) -> proper# X1, proper# fst X -> proper# X)
(proper# U31(X1, X2) -> proper# X1, proper# natsFrom X -> natsFrom# proper X)
(proper# U31(X1, X2) -> proper# X1, proper# natsFrom X -> proper# X)
(proper# U31(X1, X2) -> proper# X1, proper# s X -> s# proper X)
(proper# U31(X1, X2) -> proper# X1, proper# s X -> proper# X)
(proper# U31(X1, X2) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X2)
(proper# U31(X1, X2) -> proper# X1, proper# tail X -> tail# proper X)
(proper# U31(X1, X2) -> proper# X1, proper# tail X -> proper# X)
(proper# U31(X1, X2) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U31(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X1)
(proper# U31(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U21(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U21(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U21(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U21(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U21(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U21(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U21(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U21(X1, X2) -> proper# X1, proper# snd X -> snd# proper X)
(proper# U21(X1, X2) -> proper# X1, proper# snd X -> proper# X)
(proper# U21(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X1, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X1, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X1, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X1, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U21(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U21(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U21(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U21(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U21(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U21(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U21(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U21(X1, X2) -> proper# X1, proper# head X -> head# proper X)
(proper# U21(X1, X2) -> proper# X1, proper# head X -> proper# X)
(proper# U21(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X1, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X1, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U21(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U21(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U21(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U21(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U21(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U21(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U21(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U21(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U21(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U21(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U21(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U21(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U21(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U21(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U21(X1, X2) -> proper# X1, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X1, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X1, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X1, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U21(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U21(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U21(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U21(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U21(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U21(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U21(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U21(X1, X2) -> proper# X1, proper# fst X -> fst# proper X)
(proper# U21(X1, X2) -> proper# X1, proper# fst X -> proper# X)
(proper# U21(X1, X2) -> proper# X1, proper# natsFrom X -> natsFrom# proper X)
(proper# U21(X1, X2) -> proper# X1, proper# natsFrom X -> proper# X)
(proper# U21(X1, X2) -> proper# X1, proper# s X -> s# proper X)
(proper# U21(X1, X2) -> proper# X1, proper# s X -> proper# X)
(proper# U21(X1, X2) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X2)
(proper# U21(X1, X2) -> proper# X1, proper# tail X -> tail# proper X)
(proper# U21(X1, X2) -> proper# X1, proper# tail X -> proper# X)
(proper# U21(X1, X2) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U21(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X1)
(proper# U21(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# splitAt(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X3)
(proper# splitAt(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# splitAt(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X3)
(proper# splitAt(X1, X2) -> proper# X1, proper# snd X -> snd# proper X)
(proper# splitAt(X1, X2) -> proper# X1, proper# snd X -> proper# X)
(proper# splitAt(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X1, proper# splitAt(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X1, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X1, proper# U22(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X1, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X1, proper# U21(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X1, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X1, proper# U32(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X1, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X1, proper# U31(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# splitAt(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X3)
(proper# splitAt(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# splitAt(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X3)
(proper# splitAt(X1, X2) -> proper# X1, proper# head X -> head# proper X)
(proper# splitAt(X1, X2) -> proper# X1, proper# head X -> proper# X)
(proper# splitAt(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X1, proper# afterNth(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X1, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X1, proper# U52(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X1, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X1, proper# U51(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# splitAt(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# splitAt(X1, X2) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# splitAt(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# splitAt(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# splitAt(X1, X2) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# splitAt(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# splitAt(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# splitAt(X1, X2) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# splitAt(X1, X2) -> proper# X1, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X1, proper# U64(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X1, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X1, proper# pair(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X1, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X1, proper# U72(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X1, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X1, proper# U71(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# splitAt(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X3)
(proper# splitAt(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# splitAt(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X3)
(proper# splitAt(X1, X2) -> proper# X1, proper# fst X -> fst# proper X)
(proper# splitAt(X1, X2) -> proper# X1, proper# fst X -> proper# X)
(proper# splitAt(X1, X2) -> proper# X1, proper# natsFrom X -> natsFrom# proper X)
(proper# splitAt(X1, X2) -> proper# X1, proper# natsFrom X -> proper# X)
(proper# splitAt(X1, X2) -> proper# X1, proper# s X -> s# proper X)
(proper# splitAt(X1, X2) -> proper# X1, proper# s X -> proper# X)
(proper# splitAt(X1, X2) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X2)
(proper# splitAt(X1, X2) -> proper# X1, proper# tail X -> tail# proper X)
(proper# splitAt(X1, X2) -> proper# X1, proper# tail X -> proper# X)
(proper# splitAt(X1, X2) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# splitAt(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X1)
(proper# splitAt(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3))
(proper# U12(X1, X2, X3) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U12(X1, X2, X3) -> proper# X3)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U11(X1, X2, X3) -> U11#(proper X1, proper X2, proper X3))
(proper# U12(X1, X2, X3) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U11(X1, X2, X3) -> proper# X3)
(proper# U12(X1, X2, X3) -> proper# X1, proper# snd X -> snd# proper X)
(proper# U12(X1, X2, X3) -> proper# X1, proper# snd X -> proper# X)
(proper# U12(X1, X2, X3) -> proper# X1, proper# splitAt(X1, X2) -> splitAt#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X1, proper# splitAt(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X1, proper# splitAt(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U22(X1, X2) -> U22#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X1, proper# U22(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U22(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U21(X1, X2) -> U21#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X1, proper# U21(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U21(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U32(X1, X2) -> U32#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X1, proper# U32(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U32(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U31(X1, X2) -> U31#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X1, proper# U31(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U31(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3))
(proper# U12(X1, X2, X3) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U42(X1, X2, X3) -> proper# X3)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U41(X1, X2, X3) -> U41#(proper X1, proper X2, proper X3))
(proper# U12(X1, X2, X3) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U41(X1, X2, X3) -> proper# X3)
(proper# U12(X1, X2, X3) -> proper# X1, proper# head X -> head# proper X)
(proper# U12(X1, X2, X3) -> proper# X1, proper# head X -> proper# X)
(proper# U12(X1, X2, X3) -> proper# X1, proper# afterNth(X1, X2) -> afterNth#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X1, proper# afterNth(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X1, proper# afterNth(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U52(X1, X2) -> U52#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X1, proper# U52(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U52(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U51(X1, X2) -> U51#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X1, proper# U51(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U51(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> U62#(proper X1, proper X2, proper X3, proper X4))
(proper# U12(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X3)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U62(X1, X2, X3, X4) -> proper# X4)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> U61#(proper X1, proper X2, proper X3, proper X4))
(proper# U12(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X3)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U61(X1, X2, X3, X4) -> proper# X4)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> U63#(proper X1, proper X2, proper X3, proper X4))
(proper# U12(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X3)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U63(X1, X2, X3, X4) -> proper# X4)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U64(X1, X2) -> U64#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X1, proper# U64(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U64(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X1, proper# pair(X1, X2) -> pair#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X1, proper# pair(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X1, proper# pair(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X1, proper# cons(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X1, proper# cons(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U72(X1, X2) -> U72#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X1, proper# U72(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U72(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U71(X1, X2) -> U71#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X1, proper# U71(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U71(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3))
(proper# U12(X1, X2, X3) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U82(X1, X2, X3) -> proper# X3)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U81(X1, X2, X3) -> U81#(proper X1, proper X2, proper X3))
(proper# U12(X1, X2, X3) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X1, proper# U81(X1, X2, X3) -> proper# X3)
(proper# U12(X1, X2, X3) -> proper# X1, proper# fst X -> fst# proper X)
(proper# U12(X1, X2, X3) -> proper# X1, proper# fst X -> proper# X)
(proper# U12(X1, X2, X3) -> proper# X1, proper# natsFrom X -> natsFrom# proper X)
(proper# U12(X1, X2, X3) -> proper# X1, proper# natsFrom X -> proper# X)
(proper# U12(X1, X2, X3) -> proper# X1, proper# s X -> s# proper X)
(proper# U12(X1, X2, X3) -> proper# X1, proper# s X -> proper# X)
(proper# U12(X1, X2, X3) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X1, proper# sel(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X1, proper# sel(X1, X2) -> proper# X2)
(proper# U12(X1, X2, X3) -> proper# X1, proper# tail X -> tail# proper X)
(proper# U12(X1, X2, X3) -> proper# X1, proper# tail X -> proper# X)
(proper# U12(X1, X2, X3) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2))
(proper# U12(X1, X2, X3) -> proper# X1, proper# take(X1, X2) -> proper# X1)
(proper# U12(X1, X2, X3) -> proper# X1, proper# take(X1, X2) -> proper# X2)
(active# sel(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# sel(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> active# X1)
(active# sel(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# sel(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# sel(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> active# X1)
(active# sel(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# sel(X1, X2) -> active# X1, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# sel(X1, X2) -> active# X1, active# snd X -> active# X)
(active# sel(X1, X2) -> active# X1, active# snd X -> snd# active X)
(active# sel(X1, X2) -> active# X1, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# sel(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X1)
(active# sel(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X2)
(active# sel(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# sel(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# sel(X1, X2) -> active# X1, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# sel(X1, X2) -> active# X1, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# sel(X1, X2) -> active# X1, active# U22(X1, X2) -> active# X1)
(active# sel(X1, X2) -> active# X1, active# U22(X1, X2) -> U22#(active X1, X2))
(active# sel(X1, X2) -> active# X1, active# U21(X1, X2) -> active# X1)
(active# sel(X1, X2) -> active# X1, active# U21(X1, X2) -> U21#(active X1, X2))
(active# sel(X1, X2) -> active# X1, active# U21(tt(), X) -> U22#(tt(), X))
(active# sel(X1, X2) -> active# X1, active# U32(X1, X2) -> active# X1)
(active# sel(X1, X2) -> active# X1, active# U32(X1, X2) -> U32#(active X1, X2))
(active# sel(X1, X2) -> active# X1, active# U31(X1, X2) -> active# X1)
(active# sel(X1, X2) -> active# X1, active# U31(X1, X2) -> U31#(active X1, X2))
(active# sel(X1, X2) -> active# X1, active# U31(tt(), N) -> U32#(tt(), N))
(active# sel(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> active# X1)
(active# sel(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# sel(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# sel(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# sel(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> active# X1)
(active# sel(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# sel(X1, X2) -> active# X1, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# sel(X1, X2) -> active# X1, active# head X -> active# X)
(active# sel(X1, X2) -> active# X1, active# head X -> head# active X)
(active# sel(X1, X2) -> active# X1, active# head cons(N, XS) -> U31#(tt(), N))
(active# sel(X1, X2) -> active# X1, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# sel(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X1)
(active# sel(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X2)
(active# sel(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# sel(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# sel(X1, X2) -> active# X1, active# U52(X1, X2) -> active# X1)
(active# sel(X1, X2) -> active# X1, active# U52(X1, X2) -> U52#(active X1, X2))
(active# sel(X1, X2) -> active# X1, active# U51(X1, X2) -> active# X1)
(active# sel(X1, X2) -> active# X1, active# U51(X1, X2) -> U51#(active X1, X2))
(active# sel(X1, X2) -> active# X1, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# sel(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> active# X1)
(active# sel(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# sel(X1, X2) -> active# X1, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# sel(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> active# X1)
(active# sel(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# sel(X1, X2) -> active# X1, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# sel(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> active# X1)
(active# sel(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# sel(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# sel(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# sel(X1, X2) -> active# X1, active# U64(X1, X2) -> active# X1)
(active# sel(X1, X2) -> active# X1, active# U64(X1, X2) -> U64#(active X1, X2))
(active# sel(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# sel(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# sel(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X1)
(active# sel(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X2)
(active# sel(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(X1, active X2))
(active# sel(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(active X1, X2))
(active# sel(X1, X2) -> active# X1, active# cons(X1, X2) -> active# X1)
(active# sel(X1, X2) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2))
(active# sel(X1, X2) -> active# X1, active# U72(X1, X2) -> active# X1)
(active# sel(X1, X2) -> active# X1, active# U72(X1, X2) -> U72#(active X1, X2))
(active# sel(X1, X2) -> active# X1, active# U71(X1, X2) -> active# X1)
(active# sel(X1, X2) -> active# X1, active# U71(X1, X2) -> U71#(active X1, X2))
(active# sel(X1, X2) -> active# X1, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# sel(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> active# X1)
(active# sel(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# sel(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# sel(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# sel(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> active# X1)
(active# sel(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# sel(X1, X2) -> active# X1, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# sel(X1, X2) -> active# X1, active# fst X -> active# X)
(active# sel(X1, X2) -> active# X1, active# fst X -> fst# active X)
(active# sel(X1, X2) -> active# X1, active# fst pair(X, Y) -> U21#(tt(), X))
(active# sel(X1, X2) -> active# X1, active# natsFrom N -> cons#(N, natsFrom s N))
(active# sel(X1, X2) -> active# X1, active# natsFrom N -> natsFrom# s N)
(active# sel(X1, X2) -> active# X1, active# natsFrom N -> s# N)
(active# sel(X1, X2) -> active# X1, active# natsFrom X -> active# X)
(active# sel(X1, X2) -> active# X1, active# natsFrom X -> natsFrom# active X)
(active# sel(X1, X2) -> active# X1, active# s X -> active# X)
(active# sel(X1, X2) -> active# X1, active# s X -> s# active X)
(active# sel(X1, X2) -> active# X1, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# sel(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X1)
(active# sel(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X2)
(active# sel(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2))
(active# sel(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2))
(active# sel(X1, X2) -> active# X1, active# tail X -> active# X)
(active# sel(X1, X2) -> active# X1, active# tail X -> tail# active X)
(active# sel(X1, X2) -> active# X1, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# sel(X1, X2) -> active# X1, active# take(N, XS) -> U81#(tt(), N, XS))
(active# sel(X1, X2) -> active# X1, active# take(X1, X2) -> active# X1)
(active# sel(X1, X2) -> active# X1, active# take(X1, X2) -> active# X2)
(active# sel(X1, X2) -> active# X1, active# take(X1, X2) -> take#(X1, active X2))
(active# sel(X1, X2) -> active# X1, active# take(X1, X2) -> take#(active X1, X2))
(active# U82(X1, X2, X3) -> active# X1, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# U82(X1, X2, X3) -> active# X1, active# U12(X1, X2, X3) -> active# X1)
(active# U82(X1, X2, X3) -> active# X1, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# U82(X1, X2, X3) -> active# X1, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# U82(X1, X2, X3) -> active# X1, active# U11(X1, X2, X3) -> active# X1)
(active# U82(X1, X2, X3) -> active# X1, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# U82(X1, X2, X3) -> active# X1, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# U82(X1, X2, X3) -> active# X1, active# snd X -> active# X)
(active# U82(X1, X2, X3) -> active# X1, active# snd X -> snd# active X)
(active# U82(X1, X2, X3) -> active# X1, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# U82(X1, X2, X3) -> active# X1, active# splitAt(X1, X2) -> active# X1)
(active# U82(X1, X2, X3) -> active# X1, active# splitAt(X1, X2) -> active# X2)
(active# U82(X1, X2, X3) -> active# X1, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# U82(X1, X2, X3) -> active# X1, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# U82(X1, X2, X3) -> active# X1, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# U82(X1, X2, X3) -> active# X1, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# U82(X1, X2, X3) -> active# X1, active# U22(X1, X2) -> active# X1)
(active# U82(X1, X2, X3) -> active# X1, active# U22(X1, X2) -> U22#(active X1, X2))
(active# U82(X1, X2, X3) -> active# X1, active# U21(X1, X2) -> active# X1)
(active# U82(X1, X2, X3) -> active# X1, active# U21(X1, X2) -> U21#(active X1, X2))
(active# U82(X1, X2, X3) -> active# X1, active# U21(tt(), X) -> U22#(tt(), X))
(active# U82(X1, X2, X3) -> active# X1, active# U32(X1, X2) -> active# X1)
(active# U82(X1, X2, X3) -> active# X1, active# U32(X1, X2) -> U32#(active X1, X2))
(active# U82(X1, X2, X3) -> active# X1, active# U31(X1, X2) -> active# X1)
(active# U82(X1, X2, X3) -> active# X1, active# U31(X1, X2) -> U31#(active X1, X2))
(active# U82(X1, X2, X3) -> active# X1, active# U31(tt(), N) -> U32#(tt(), N))
(active# U82(X1, X2, X3) -> active# X1, active# U42(X1, X2, X3) -> active# X1)
(active# U82(X1, X2, X3) -> active# X1, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# U82(X1, X2, X3) -> active# X1, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# U82(X1, X2, X3) -> active# X1, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# U82(X1, X2, X3) -> active# X1, active# U41(X1, X2, X3) -> active# X1)
(active# U82(X1, X2, X3) -> active# X1, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# U82(X1, X2, X3) -> active# X1, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# U82(X1, X2, X3) -> active# X1, active# head X -> active# X)
(active# U82(X1, X2, X3) -> active# X1, active# head X -> head# active X)
(active# U82(X1, X2, X3) -> active# X1, active# head cons(N, XS) -> U31#(tt(), N))
(active# U82(X1, X2, X3) -> active# X1, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# U82(X1, X2, X3) -> active# X1, active# afterNth(X1, X2) -> active# X1)
(active# U82(X1, X2, X3) -> active# X1, active# afterNth(X1, X2) -> active# X2)
(active# U82(X1, X2, X3) -> active# X1, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# U82(X1, X2, X3) -> active# X1, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# U82(X1, X2, X3) -> active# X1, active# U52(X1, X2) -> active# X1)
(active# U82(X1, X2, X3) -> active# X1, active# U52(X1, X2) -> U52#(active X1, X2))
(active# U82(X1, X2, X3) -> active# X1, active# U51(X1, X2) -> active# X1)
(active# U82(X1, X2, X3) -> active# X1, active# U51(X1, X2) -> U51#(active X1, X2))
(active# U82(X1, X2, X3) -> active# X1, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# U82(X1, X2, X3) -> active# X1, active# U62(X1, X2, X3, X4) -> active# X1)
(active# U82(X1, X2, X3) -> active# X1, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# U82(X1, X2, X3) -> active# X1, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# U82(X1, X2, X3) -> active# X1, active# U61(X1, X2, X3, X4) -> active# X1)
(active# U82(X1, X2, X3) -> active# X1, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# U82(X1, X2, X3) -> active# X1, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# U82(X1, X2, X3) -> active# X1, active# U63(X1, X2, X3, X4) -> active# X1)
(active# U82(X1, X2, X3) -> active# X1, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# U82(X1, X2, X3) -> active# X1, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# U82(X1, X2, X3) -> active# X1, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# U82(X1, X2, X3) -> active# X1, active# U64(X1, X2) -> active# X1)
(active# U82(X1, X2, X3) -> active# X1, active# U64(X1, X2) -> U64#(active X1, X2))
(active# U82(X1, X2, X3) -> active# X1, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# U82(X1, X2, X3) -> active# X1, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# U82(X1, X2, X3) -> active# X1, active# pair(X1, X2) -> active# X1)
(active# U82(X1, X2, X3) -> active# X1, active# pair(X1, X2) -> active# X2)
(active# U82(X1, X2, X3) -> active# X1, active# pair(X1, X2) -> pair#(X1, active X2))
(active# U82(X1, X2, X3) -> active# X1, active# pair(X1, X2) -> pair#(active X1, X2))
(active# U82(X1, X2, X3) -> active# X1, active# cons(X1, X2) -> active# X1)
(active# U82(X1, X2, X3) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2))
(active# U82(X1, X2, X3) -> active# X1, active# U72(X1, X2) -> active# X1)
(active# U82(X1, X2, X3) -> active# X1, active# U72(X1, X2) -> U72#(active X1, X2))
(active# U82(X1, X2, X3) -> active# X1, active# U71(X1, X2) -> active# X1)
(active# U82(X1, X2, X3) -> active# X1, active# U71(X1, X2) -> U71#(active X1, X2))
(active# U82(X1, X2, X3) -> active# X1, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# U82(X1, X2, X3) -> active# X1, active# U82(X1, X2, X3) -> active# X1)
(active# U82(X1, X2, X3) -> active# X1, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# U82(X1, X2, X3) -> active# X1, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# U82(X1, X2, X3) -> active# X1, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# U82(X1, X2, X3) -> active# X1, active# U81(X1, X2, X3) -> active# X1)
(active# U82(X1, X2, X3) -> active# X1, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# U82(X1, X2, X3) -> active# X1, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# U82(X1, X2, X3) -> active# X1, active# fst X -> active# X)
(active# U82(X1, X2, X3) -> active# X1, active# fst X -> fst# active X)
(active# U82(X1, X2, X3) -> active# X1, active# fst pair(X, Y) -> U21#(tt(), X))
(active# U82(X1, X2, X3) -> active# X1, active# natsFrom N -> cons#(N, natsFrom s N))
(active# U82(X1, X2, X3) -> active# X1, active# natsFrom N -> natsFrom# s N)
(active# U82(X1, X2, X3) -> active# X1, active# natsFrom N -> s# N)
(active# U82(X1, X2, X3) -> active# X1, active# natsFrom X -> active# X)
(active# U82(X1, X2, X3) -> active# X1, active# natsFrom X -> natsFrom# active X)
(active# U82(X1, X2, X3) -> active# X1, active# s X -> active# X)
(active# U82(X1, X2, X3) -> active# X1, active# s X -> s# active X)
(active# U82(X1, X2, X3) -> active# X1, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# U82(X1, X2, X3) -> active# X1, active# sel(X1, X2) -> active# X1)
(active# U82(X1, X2, X3) -> active# X1, active# sel(X1, X2) -> active# X2)
(active# U82(X1, X2, X3) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2))
(active# U82(X1, X2, X3) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2))
(active# U82(X1, X2, X3) -> active# X1, active# tail X -> active# X)
(active# U82(X1, X2, X3) -> active# X1, active# tail X -> tail# active X)
(active# U82(X1, X2, X3) -> active# X1, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# U82(X1, X2, X3) -> active# X1, active# take(N, XS) -> U81#(tt(), N, XS))
(active# U82(X1, X2, X3) -> active# X1, active# take(X1, X2) -> active# X1)
(active# U82(X1, X2, X3) -> active# X1, active# take(X1, X2) -> active# X2)
(active# U82(X1, X2, X3) -> active# X1, active# take(X1, X2) -> take#(X1, active X2))
(active# U82(X1, X2, X3) -> active# X1, active# take(X1, X2) -> take#(active X1, X2))
(active# U72(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# U72(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> active# X1)
(active# U72(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# U72(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# U72(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> active# X1)
(active# U72(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# U72(X1, X2) -> active# X1, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# U72(X1, X2) -> active# X1, active# snd X -> active# X)
(active# U72(X1, X2) -> active# X1, active# snd X -> snd# active X)
(active# U72(X1, X2) -> active# X1, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# U72(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X1)
(active# U72(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X2)
(active# U72(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# U72(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# U72(X1, X2) -> active# X1, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# U72(X1, X2) -> active# X1, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# U72(X1, X2) -> active# X1, active# U22(X1, X2) -> active# X1)
(active# U72(X1, X2) -> active# X1, active# U22(X1, X2) -> U22#(active X1, X2))
(active# U72(X1, X2) -> active# X1, active# U21(X1, X2) -> active# X1)
(active# U72(X1, X2) -> active# X1, active# U21(X1, X2) -> U21#(active X1, X2))
(active# U72(X1, X2) -> active# X1, active# U21(tt(), X) -> U22#(tt(), X))
(active# U72(X1, X2) -> active# X1, active# U32(X1, X2) -> active# X1)
(active# U72(X1, X2) -> active# X1, active# U32(X1, X2) -> U32#(active X1, X2))
(active# U72(X1, X2) -> active# X1, active# U31(X1, X2) -> active# X1)
(active# U72(X1, X2) -> active# X1, active# U31(X1, X2) -> U31#(active X1, X2))
(active# U72(X1, X2) -> active# X1, active# U31(tt(), N) -> U32#(tt(), N))
(active# U72(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> active# X1)
(active# U72(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# U72(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# U72(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# U72(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> active# X1)
(active# U72(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# U72(X1, X2) -> active# X1, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# U72(X1, X2) -> active# X1, active# head X -> active# X)
(active# U72(X1, X2) -> active# X1, active# head X -> head# active X)
(active# U72(X1, X2) -> active# X1, active# head cons(N, XS) -> U31#(tt(), N))
(active# U72(X1, X2) -> active# X1, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# U72(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X1)
(active# U72(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X2)
(active# U72(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# U72(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# U72(X1, X2) -> active# X1, active# U52(X1, X2) -> active# X1)
(active# U72(X1, X2) -> active# X1, active# U52(X1, X2) -> U52#(active X1, X2))
(active# U72(X1, X2) -> active# X1, active# U51(X1, X2) -> active# X1)
(active# U72(X1, X2) -> active# X1, active# U51(X1, X2) -> U51#(active X1, X2))
(active# U72(X1, X2) -> active# X1, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# U72(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> active# X1)
(active# U72(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# U72(X1, X2) -> active# X1, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# U72(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> active# X1)
(active# U72(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# U72(X1, X2) -> active# X1, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# U72(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> active# X1)
(active# U72(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# U72(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# U72(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# U72(X1, X2) -> active# X1, active# U64(X1, X2) -> active# X1)
(active# U72(X1, X2) -> active# X1, active# U64(X1, X2) -> U64#(active X1, X2))
(active# U72(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# U72(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# U72(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X1)
(active# U72(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X2)
(active# U72(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(X1, active X2))
(active# U72(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(active X1, X2))
(active# U72(X1, X2) -> active# X1, active# cons(X1, X2) -> active# X1)
(active# U72(X1, X2) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2))
(active# U72(X1, X2) -> active# X1, active# U72(X1, X2) -> active# X1)
(active# U72(X1, X2) -> active# X1, active# U72(X1, X2) -> U72#(active X1, X2))
(active# U72(X1, X2) -> active# X1, active# U71(X1, X2) -> active# X1)
(active# U72(X1, X2) -> active# X1, active# U71(X1, X2) -> U71#(active X1, X2))
(active# U72(X1, X2) -> active# X1, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# U72(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> active# X1)
(active# U72(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# U72(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# U72(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# U72(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> active# X1)
(active# U72(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# U72(X1, X2) -> active# X1, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# U72(X1, X2) -> active# X1, active# fst X -> active# X)
(active# U72(X1, X2) -> active# X1, active# fst X -> fst# active X)
(active# U72(X1, X2) -> active# X1, active# fst pair(X, Y) -> U21#(tt(), X))
(active# U72(X1, X2) -> active# X1, active# natsFrom N -> cons#(N, natsFrom s N))
(active# U72(X1, X2) -> active# X1, active# natsFrom N -> natsFrom# s N)
(active# U72(X1, X2) -> active# X1, active# natsFrom N -> s# N)
(active# U72(X1, X2) -> active# X1, active# natsFrom X -> active# X)
(active# U72(X1, X2) -> active# X1, active# natsFrom X -> natsFrom# active X)
(active# U72(X1, X2) -> active# X1, active# s X -> active# X)
(active# U72(X1, X2) -> active# X1, active# s X -> s# active X)
(active# U72(X1, X2) -> active# X1, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# U72(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X1)
(active# U72(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X2)
(active# U72(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2))
(active# U72(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2))
(active# U72(X1, X2) -> active# X1, active# tail X -> active# X)
(active# U72(X1, X2) -> active# X1, active# tail X -> tail# active X)
(active# U72(X1, X2) -> active# X1, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# U72(X1, X2) -> active# X1, active# take(N, XS) -> U81#(tt(), N, XS))
(active# U72(X1, X2) -> active# X1, active# take(X1, X2) -> active# X1)
(active# U72(X1, X2) -> active# X1, active# take(X1, X2) -> active# X2)
(active# U72(X1, X2) -> active# X1, active# take(X1, X2) -> take#(X1, active X2))
(active# U72(X1, X2) -> active# X1, active# take(X1, X2) -> take#(active X1, X2))
(active# pair(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# pair(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> active# X1)
(active# pair(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# pair(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# pair(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> active# X1)
(active# pair(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# pair(X1, X2) -> active# X1, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# pair(X1, X2) -> active# X1, active# snd X -> active# X)
(active# pair(X1, X2) -> active# X1, active# snd X -> snd# active X)
(active# pair(X1, X2) -> active# X1, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# pair(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X1)
(active# pair(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X2)
(active# pair(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# pair(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# pair(X1, X2) -> active# X1, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# pair(X1, X2) -> active# X1, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# pair(X1, X2) -> active# X1, active# U22(X1, X2) -> active# X1)
(active# pair(X1, X2) -> active# X1, active# U22(X1, X2) -> U22#(active X1, X2))
(active# pair(X1, X2) -> active# X1, active# U21(X1, X2) -> active# X1)
(active# pair(X1, X2) -> active# X1, active# U21(X1, X2) -> U21#(active X1, X2))
(active# pair(X1, X2) -> active# X1, active# U21(tt(), X) -> U22#(tt(), X))
(active# pair(X1, X2) -> active# X1, active# U32(X1, X2) -> active# X1)
(active# pair(X1, X2) -> active# X1, active# U32(X1, X2) -> U32#(active X1, X2))
(active# pair(X1, X2) -> active# X1, active# U31(X1, X2) -> active# X1)
(active# pair(X1, X2) -> active# X1, active# U31(X1, X2) -> U31#(active X1, X2))
(active# pair(X1, X2) -> active# X1, active# U31(tt(), N) -> U32#(tt(), N))
(active# pair(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> active# X1)
(active# pair(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# pair(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# pair(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# pair(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> active# X1)
(active# pair(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# pair(X1, X2) -> active# X1, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# pair(X1, X2) -> active# X1, active# head X -> active# X)
(active# pair(X1, X2) -> active# X1, active# head X -> head# active X)
(active# pair(X1, X2) -> active# X1, active# head cons(N, XS) -> U31#(tt(), N))
(active# pair(X1, X2) -> active# X1, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# pair(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X1)
(active# pair(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X2)
(active# pair(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# pair(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# pair(X1, X2) -> active# X1, active# U52(X1, X2) -> active# X1)
(active# pair(X1, X2) -> active# X1, active# U52(X1, X2) -> U52#(active X1, X2))
(active# pair(X1, X2) -> active# X1, active# U51(X1, X2) -> active# X1)
(active# pair(X1, X2) -> active# X1, active# U51(X1, X2) -> U51#(active X1, X2))
(active# pair(X1, X2) -> active# X1, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# pair(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> active# X1)
(active# pair(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# pair(X1, X2) -> active# X1, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# pair(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> active# X1)
(active# pair(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# pair(X1, X2) -> active# X1, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# pair(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> active# X1)
(active# pair(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# pair(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# pair(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# pair(X1, X2) -> active# X1, active# U64(X1, X2) -> active# X1)
(active# pair(X1, X2) -> active# X1, active# U64(X1, X2) -> U64#(active X1, X2))
(active# pair(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# pair(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# pair(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X1)
(active# pair(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X2)
(active# pair(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(X1, active X2))
(active# pair(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(active X1, X2))
(active# pair(X1, X2) -> active# X1, active# cons(X1, X2) -> active# X1)
(active# pair(X1, X2) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2))
(active# pair(X1, X2) -> active# X1, active# U72(X1, X2) -> active# X1)
(active# pair(X1, X2) -> active# X1, active# U72(X1, X2) -> U72#(active X1, X2))
(active# pair(X1, X2) -> active# X1, active# U71(X1, X2) -> active# X1)
(active# pair(X1, X2) -> active# X1, active# U71(X1, X2) -> U71#(active X1, X2))
(active# pair(X1, X2) -> active# X1, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# pair(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> active# X1)
(active# pair(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# pair(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# pair(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# pair(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> active# X1)
(active# pair(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# pair(X1, X2) -> active# X1, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# pair(X1, X2) -> active# X1, active# fst X -> active# X)
(active# pair(X1, X2) -> active# X1, active# fst X -> fst# active X)
(active# pair(X1, X2) -> active# X1, active# fst pair(X, Y) -> U21#(tt(), X))
(active# pair(X1, X2) -> active# X1, active# natsFrom N -> cons#(N, natsFrom s N))
(active# pair(X1, X2) -> active# X1, active# natsFrom N -> natsFrom# s N)
(active# pair(X1, X2) -> active# X1, active# natsFrom N -> s# N)
(active# pair(X1, X2) -> active# X1, active# natsFrom X -> active# X)
(active# pair(X1, X2) -> active# X1, active# natsFrom X -> natsFrom# active X)
(active# pair(X1, X2) -> active# X1, active# s X -> active# X)
(active# pair(X1, X2) -> active# X1, active# s X -> s# active X)
(active# pair(X1, X2) -> active# X1, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# pair(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X1)
(active# pair(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X2)
(active# pair(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2))
(active# pair(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2))
(active# pair(X1, X2) -> active# X1, active# tail X -> active# X)
(active# pair(X1, X2) -> active# X1, active# tail X -> tail# active X)
(active# pair(X1, X2) -> active# X1, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# pair(X1, X2) -> active# X1, active# take(N, XS) -> U81#(tt(), N, XS))
(active# pair(X1, X2) -> active# X1, active# take(X1, X2) -> active# X1)
(active# pair(X1, X2) -> active# X1, active# take(X1, X2) -> active# X2)
(active# pair(X1, X2) -> active# X1, active# take(X1, X2) -> take#(X1, active X2))
(active# pair(X1, X2) -> active# X1, active# take(X1, X2) -> take#(active X1, X2))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U12(X1, X2, X3) -> active# X1)
(active# U63(X1, X2, X3, X4) -> active# X1, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U11(X1, X2, X3) -> active# X1)
(active# U63(X1, X2, X3, X4) -> active# X1, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# U63(X1, X2, X3, X4) -> active# X1, active# snd X -> active# X)
(active# U63(X1, X2, X3, X4) -> active# X1, active# snd X -> snd# active X)
(active# U63(X1, X2, X3, X4) -> active# X1, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# U63(X1, X2, X3, X4) -> active# X1, active# splitAt(X1, X2) -> active# X1)
(active# U63(X1, X2, X3, X4) -> active# X1, active# splitAt(X1, X2) -> active# X2)
(active# U63(X1, X2, X3, X4) -> active# X1, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# U63(X1, X2, X3, X4) -> active# X1, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# U63(X1, X2, X3, X4) -> active# X1, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# U63(X1, X2, X3, X4) -> active# X1, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U22(X1, X2) -> active# X1)
(active# U63(X1, X2, X3, X4) -> active# X1, active# U22(X1, X2) -> U22#(active X1, X2))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U21(X1, X2) -> active# X1)
(active# U63(X1, X2, X3, X4) -> active# X1, active# U21(X1, X2) -> U21#(active X1, X2))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U21(tt(), X) -> U22#(tt(), X))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U32(X1, X2) -> active# X1)
(active# U63(X1, X2, X3, X4) -> active# X1, active# U32(X1, X2) -> U32#(active X1, X2))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U31(X1, X2) -> active# X1)
(active# U63(X1, X2, X3, X4) -> active# X1, active# U31(X1, X2) -> U31#(active X1, X2))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U31(tt(), N) -> U32#(tt(), N))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U42(X1, X2, X3) -> active# X1)
(active# U63(X1, X2, X3, X4) -> active# X1, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U41(X1, X2, X3) -> active# X1)
(active# U63(X1, X2, X3, X4) -> active# X1, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# U63(X1, X2, X3, X4) -> active# X1, active# head X -> active# X)
(active# U63(X1, X2, X3, X4) -> active# X1, active# head X -> head# active X)
(active# U63(X1, X2, X3, X4) -> active# X1, active# head cons(N, XS) -> U31#(tt(), N))
(active# U63(X1, X2, X3, X4) -> active# X1, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# U63(X1, X2, X3, X4) -> active# X1, active# afterNth(X1, X2) -> active# X1)
(active# U63(X1, X2, X3, X4) -> active# X1, active# afterNth(X1, X2) -> active# X2)
(active# U63(X1, X2, X3, X4) -> active# X1, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# U63(X1, X2, X3, X4) -> active# X1, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U52(X1, X2) -> active# X1)
(active# U63(X1, X2, X3, X4) -> active# X1, active# U52(X1, X2) -> U52#(active X1, X2))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U51(X1, X2) -> active# X1)
(active# U63(X1, X2, X3, X4) -> active# X1, active# U51(X1, X2) -> U51#(active X1, X2))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U62(X1, X2, X3, X4) -> active# X1)
(active# U63(X1, X2, X3, X4) -> active# X1, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U61(X1, X2, X3, X4) -> active# X1)
(active# U63(X1, X2, X3, X4) -> active# X1, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U63(X1, X2, X3, X4) -> active# X1)
(active# U63(X1, X2, X3, X4) -> active# X1, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U64(X1, X2) -> active# X1)
(active# U63(X1, X2, X3, X4) -> active# X1, active# U64(X1, X2) -> U64#(active X1, X2))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# U63(X1, X2, X3, X4) -> active# X1, active# pair(X1, X2) -> active# X1)
(active# U63(X1, X2, X3, X4) -> active# X1, active# pair(X1, X2) -> active# X2)
(active# U63(X1, X2, X3, X4) -> active# X1, active# pair(X1, X2) -> pair#(X1, active X2))
(active# U63(X1, X2, X3, X4) -> active# X1, active# pair(X1, X2) -> pair#(active X1, X2))
(active# U63(X1, X2, X3, X4) -> active# X1, active# cons(X1, X2) -> active# X1)
(active# U63(X1, X2, X3, X4) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U72(X1, X2) -> active# X1)
(active# U63(X1, X2, X3, X4) -> active# X1, active# U72(X1, X2) -> U72#(active X1, X2))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U71(X1, X2) -> active# X1)
(active# U63(X1, X2, X3, X4) -> active# X1, active# U71(X1, X2) -> U71#(active X1, X2))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U82(X1, X2, X3) -> active# X1)
(active# U63(X1, X2, X3, X4) -> active# X1, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U81(X1, X2, X3) -> active# X1)
(active# U63(X1, X2, X3, X4) -> active# X1, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# U63(X1, X2, X3, X4) -> active# X1, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# U63(X1, X2, X3, X4) -> active# X1, active# fst X -> active# X)
(active# U63(X1, X2, X3, X4) -> active# X1, active# fst X -> fst# active X)
(active# U63(X1, X2, X3, X4) -> active# X1, active# fst pair(X, Y) -> U21#(tt(), X))
(active# U63(X1, X2, X3, X4) -> active# X1, active# natsFrom N -> cons#(N, natsFrom s N))
(active# U63(X1, X2, X3, X4) -> active# X1, active# natsFrom N -> natsFrom# s N)
(active# U63(X1, X2, X3, X4) -> active# X1, active# natsFrom N -> s# N)
(active# U63(X1, X2, X3, X4) -> active# X1, active# natsFrom X -> active# X)
(active# U63(X1, X2, X3, X4) -> active# X1, active# natsFrom X -> natsFrom# active X)
(active# U63(X1, X2, X3, X4) -> active# X1, active# s X -> active# X)
(active# U63(X1, X2, X3, X4) -> active# X1, active# s X -> s# active X)
(active# U63(X1, X2, X3, X4) -> active# X1, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# U63(X1, X2, X3, X4) -> active# X1, active# sel(X1, X2) -> active# X1)
(active# U63(X1, X2, X3, X4) -> active# X1, active# sel(X1, X2) -> active# X2)
(active# U63(X1, X2, X3, X4) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2))
(active# U63(X1, X2, X3, X4) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2))
(active# U63(X1, X2, X3, X4) -> active# X1, active# tail X -> active# X)
(active# U63(X1, X2, X3, X4) -> active# X1, active# tail X -> tail# active X)
(active# U63(X1, X2, X3, X4) -> active# X1, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# U63(X1, X2, X3, X4) -> active# X1, active# take(N, XS) -> U81#(tt(), N, XS))
(active# U63(X1, X2, X3, X4) -> active# X1, active# take(X1, X2) -> active# X1)
(active# U63(X1, X2, X3, X4) -> active# X1, active# take(X1, X2) -> active# X2)
(active# U63(X1, X2, X3, X4) -> active# X1, active# take(X1, X2) -> take#(X1, active X2))
(active# U63(X1, X2, X3, X4) -> active# X1, active# take(X1, X2) -> take#(active X1, X2))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U12(X1, X2, X3) -> active# X1)
(active# U62(X1, X2, X3, X4) -> active# X1, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U11(X1, X2, X3) -> active# X1)
(active# U62(X1, X2, X3, X4) -> active# X1, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# U62(X1, X2, X3, X4) -> active# X1, active# snd X -> active# X)
(active# U62(X1, X2, X3, X4) -> active# X1, active# snd X -> snd# active X)
(active# U62(X1, X2, X3, X4) -> active# X1, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# U62(X1, X2, X3, X4) -> active# X1, active# splitAt(X1, X2) -> active# X1)
(active# U62(X1, X2, X3, X4) -> active# X1, active# splitAt(X1, X2) -> active# X2)
(active# U62(X1, X2, X3, X4) -> active# X1, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# U62(X1, X2, X3, X4) -> active# X1, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# U62(X1, X2, X3, X4) -> active# X1, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# U62(X1, X2, X3, X4) -> active# X1, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U22(X1, X2) -> active# X1)
(active# U62(X1, X2, X3, X4) -> active# X1, active# U22(X1, X2) -> U22#(active X1, X2))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U21(X1, X2) -> active# X1)
(active# U62(X1, X2, X3, X4) -> active# X1, active# U21(X1, X2) -> U21#(active X1, X2))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U21(tt(), X) -> U22#(tt(), X))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U32(X1, X2) -> active# X1)
(active# U62(X1, X2, X3, X4) -> active# X1, active# U32(X1, X2) -> U32#(active X1, X2))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U31(X1, X2) -> active# X1)
(active# U62(X1, X2, X3, X4) -> active# X1, active# U31(X1, X2) -> U31#(active X1, X2))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U31(tt(), N) -> U32#(tt(), N))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U42(X1, X2, X3) -> active# X1)
(active# U62(X1, X2, X3, X4) -> active# X1, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U41(X1, X2, X3) -> active# X1)
(active# U62(X1, X2, X3, X4) -> active# X1, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# U62(X1, X2, X3, X4) -> active# X1, active# head X -> active# X)
(active# U62(X1, X2, X3, X4) -> active# X1, active# head X -> head# active X)
(active# U62(X1, X2, X3, X4) -> active# X1, active# head cons(N, XS) -> U31#(tt(), N))
(active# U62(X1, X2, X3, X4) -> active# X1, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# U62(X1, X2, X3, X4) -> active# X1, active# afterNth(X1, X2) -> active# X1)
(active# U62(X1, X2, X3, X4) -> active# X1, active# afterNth(X1, X2) -> active# X2)
(active# U62(X1, X2, X3, X4) -> active# X1, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# U62(X1, X2, X3, X4) -> active# X1, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U52(X1, X2) -> active# X1)
(active# U62(X1, X2, X3, X4) -> active# X1, active# U52(X1, X2) -> U52#(active X1, X2))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U51(X1, X2) -> active# X1)
(active# U62(X1, X2, X3, X4) -> active# X1, active# U51(X1, X2) -> U51#(active X1, X2))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U62(X1, X2, X3, X4) -> active# X1)
(active# U62(X1, X2, X3, X4) -> active# X1, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U61(X1, X2, X3, X4) -> active# X1)
(active# U62(X1, X2, X3, X4) -> active# X1, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U63(X1, X2, X3, X4) -> active# X1)
(active# U62(X1, X2, X3, X4) -> active# X1, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U64(X1, X2) -> active# X1)
(active# U62(X1, X2, X3, X4) -> active# X1, active# U64(X1, X2) -> U64#(active X1, X2))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# U62(X1, X2, X3, X4) -> active# X1, active# pair(X1, X2) -> active# X1)
(active# U62(X1, X2, X3, X4) -> active# X1, active# pair(X1, X2) -> active# X2)
(active# U62(X1, X2, X3, X4) -> active# X1, active# pair(X1, X2) -> pair#(X1, active X2))
(active# U62(X1, X2, X3, X4) -> active# X1, active# pair(X1, X2) -> pair#(active X1, X2))
(active# U62(X1, X2, X3, X4) -> active# X1, active# cons(X1, X2) -> active# X1)
(active# U62(X1, X2, X3, X4) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U72(X1, X2) -> active# X1)
(active# U62(X1, X2, X3, X4) -> active# X1, active# U72(X1, X2) -> U72#(active X1, X2))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U71(X1, X2) -> active# X1)
(active# U62(X1, X2, X3, X4) -> active# X1, active# U71(X1, X2) -> U71#(active X1, X2))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U82(X1, X2, X3) -> active# X1)
(active# U62(X1, X2, X3, X4) -> active# X1, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U81(X1, X2, X3) -> active# X1)
(active# U62(X1, X2, X3, X4) -> active# X1, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# U62(X1, X2, X3, X4) -> active# X1, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# U62(X1, X2, X3, X4) -> active# X1, active# fst X -> active# X)
(active# U62(X1, X2, X3, X4) -> active# X1, active# fst X -> fst# active X)
(active# U62(X1, X2, X3, X4) -> active# X1, active# fst pair(X, Y) -> U21#(tt(), X))
(active# U62(X1, X2, X3, X4) -> active# X1, active# natsFrom N -> cons#(N, natsFrom s N))
(active# U62(X1, X2, X3, X4) -> active# X1, active# natsFrom N -> natsFrom# s N)
(active# U62(X1, X2, X3, X4) -> active# X1, active# natsFrom N -> s# N)
(active# U62(X1, X2, X3, X4) -> active# X1, active# natsFrom X -> active# X)
(active# U62(X1, X2, X3, X4) -> active# X1, active# natsFrom X -> natsFrom# active X)
(active# U62(X1, X2, X3, X4) -> active# X1, active# s X -> active# X)
(active# U62(X1, X2, X3, X4) -> active# X1, active# s X -> s# active X)
(active# U62(X1, X2, X3, X4) -> active# X1, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# U62(X1, X2, X3, X4) -> active# X1, active# sel(X1, X2) -> active# X1)
(active# U62(X1, X2, X3, X4) -> active# X1, active# sel(X1, X2) -> active# X2)
(active# U62(X1, X2, X3, X4) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2))
(active# U62(X1, X2, X3, X4) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2))
(active# U62(X1, X2, X3, X4) -> active# X1, active# tail X -> active# X)
(active# U62(X1, X2, X3, X4) -> active# X1, active# tail X -> tail# active X)
(active# U62(X1, X2, X3, X4) -> active# X1, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# U62(X1, X2, X3, X4) -> active# X1, active# take(N, XS) -> U81#(tt(), N, XS))
(active# U62(X1, X2, X3, X4) -> active# X1, active# take(X1, X2) -> active# X1)
(active# U62(X1, X2, X3, X4) -> active# X1, active# take(X1, X2) -> active# X2)
(active# U62(X1, X2, X3, X4) -> active# X1, active# take(X1, X2) -> take#(X1, active X2))
(active# U62(X1, X2, X3, X4) -> active# X1, active# take(X1, X2) -> take#(active X1, X2))
(active# U52(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# U52(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> active# X1)
(active# U52(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# U52(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# U52(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> active# X1)
(active# U52(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# U52(X1, X2) -> active# X1, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# U52(X1, X2) -> active# X1, active# snd X -> active# X)
(active# U52(X1, X2) -> active# X1, active# snd X -> snd# active X)
(active# U52(X1, X2) -> active# X1, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# U52(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X1)
(active# U52(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X2)
(active# U52(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# U52(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# U52(X1, X2) -> active# X1, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# U52(X1, X2) -> active# X1, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# U52(X1, X2) -> active# X1, active# U22(X1, X2) -> active# X1)
(active# U52(X1, X2) -> active# X1, active# U22(X1, X2) -> U22#(active X1, X2))
(active# U52(X1, X2) -> active# X1, active# U21(X1, X2) -> active# X1)
(active# U52(X1, X2) -> active# X1, active# U21(X1, X2) -> U21#(active X1, X2))
(active# U52(X1, X2) -> active# X1, active# U21(tt(), X) -> U22#(tt(), X))
(active# U52(X1, X2) -> active# X1, active# U32(X1, X2) -> active# X1)
(active# U52(X1, X2) -> active# X1, active# U32(X1, X2) -> U32#(active X1, X2))
(active# U52(X1, X2) -> active# X1, active# U31(X1, X2) -> active# X1)
(active# U52(X1, X2) -> active# X1, active# U31(X1, X2) -> U31#(active X1, X2))
(active# U52(X1, X2) -> active# X1, active# U31(tt(), N) -> U32#(tt(), N))
(active# U52(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> active# X1)
(active# U52(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# U52(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# U52(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# U52(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> active# X1)
(active# U52(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# U52(X1, X2) -> active# X1, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# U52(X1, X2) -> active# X1, active# head X -> active# X)
(active# U52(X1, X2) -> active# X1, active# head X -> head# active X)
(active# U52(X1, X2) -> active# X1, active# head cons(N, XS) -> U31#(tt(), N))
(active# U52(X1, X2) -> active# X1, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# U52(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X1)
(active# U52(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X2)
(active# U52(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# U52(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# U52(X1, X2) -> active# X1, active# U52(X1, X2) -> active# X1)
(active# U52(X1, X2) -> active# X1, active# U52(X1, X2) -> U52#(active X1, X2))
(active# U52(X1, X2) -> active# X1, active# U51(X1, X2) -> active# X1)
(active# U52(X1, X2) -> active# X1, active# U51(X1, X2) -> U51#(active X1, X2))
(active# U52(X1, X2) -> active# X1, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# U52(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> active# X1)
(active# U52(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# U52(X1, X2) -> active# X1, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# U52(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> active# X1)
(active# U52(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# U52(X1, X2) -> active# X1, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# U52(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> active# X1)
(active# U52(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# U52(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# U52(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# U52(X1, X2) -> active# X1, active# U64(X1, X2) -> active# X1)
(active# U52(X1, X2) -> active# X1, active# U64(X1, X2) -> U64#(active X1, X2))
(active# U52(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# U52(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# U52(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X1)
(active# U52(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X2)
(active# U52(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(X1, active X2))
(active# U52(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(active X1, X2))
(active# U52(X1, X2) -> active# X1, active# cons(X1, X2) -> active# X1)
(active# U52(X1, X2) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2))
(active# U52(X1, X2) -> active# X1, active# U72(X1, X2) -> active# X1)
(active# U52(X1, X2) -> active# X1, active# U72(X1, X2) -> U72#(active X1, X2))
(active# U52(X1, X2) -> active# X1, active# U71(X1, X2) -> active# X1)
(active# U52(X1, X2) -> active# X1, active# U71(X1, X2) -> U71#(active X1, X2))
(active# U52(X1, X2) -> active# X1, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# U52(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> active# X1)
(active# U52(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# U52(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# U52(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# U52(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> active# X1)
(active# U52(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# U52(X1, X2) -> active# X1, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# U52(X1, X2) -> active# X1, active# fst X -> active# X)
(active# U52(X1, X2) -> active# X1, active# fst X -> fst# active X)
(active# U52(X1, X2) -> active# X1, active# fst pair(X, Y) -> U21#(tt(), X))
(active# U52(X1, X2) -> active# X1, active# natsFrom N -> cons#(N, natsFrom s N))
(active# U52(X1, X2) -> active# X1, active# natsFrom N -> natsFrom# s N)
(active# U52(X1, X2) -> active# X1, active# natsFrom N -> s# N)
(active# U52(X1, X2) -> active# X1, active# natsFrom X -> active# X)
(active# U52(X1, X2) -> active# X1, active# natsFrom X -> natsFrom# active X)
(active# U52(X1, X2) -> active# X1, active# s X -> active# X)
(active# U52(X1, X2) -> active# X1, active# s X -> s# active X)
(active# U52(X1, X2) -> active# X1, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# U52(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X1)
(active# U52(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X2)
(active# U52(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2))
(active# U52(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2))
(active# U52(X1, X2) -> active# X1, active# tail X -> active# X)
(active# U52(X1, X2) -> active# X1, active# tail X -> tail# active X)
(active# U52(X1, X2) -> active# X1, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# U52(X1, X2) -> active# X1, active# take(N, XS) -> U81#(tt(), N, XS))
(active# U52(X1, X2) -> active# X1, active# take(X1, X2) -> active# X1)
(active# U52(X1, X2) -> active# X1, active# take(X1, X2) -> active# X2)
(active# U52(X1, X2) -> active# X1, active# take(X1, X2) -> take#(X1, active X2))
(active# U52(X1, X2) -> active# X1, active# take(X1, X2) -> take#(active X1, X2))
(active# U41(X1, X2, X3) -> active# X1, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# U41(X1, X2, X3) -> active# X1, active# U12(X1, X2, X3) -> active# X1)
(active# U41(X1, X2, X3) -> active# X1, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# U41(X1, X2, X3) -> active# X1, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# U41(X1, X2, X3) -> active# X1, active# U11(X1, X2, X3) -> active# X1)
(active# U41(X1, X2, X3) -> active# X1, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# U41(X1, X2, X3) -> active# X1, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# U41(X1, X2, X3) -> active# X1, active# snd X -> active# X)
(active# U41(X1, X2, X3) -> active# X1, active# snd X -> snd# active X)
(active# U41(X1, X2, X3) -> active# X1, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# U41(X1, X2, X3) -> active# X1, active# splitAt(X1, X2) -> active# X1)
(active# U41(X1, X2, X3) -> active# X1, active# splitAt(X1, X2) -> active# X2)
(active# U41(X1, X2, X3) -> active# X1, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# U41(X1, X2, X3) -> active# X1, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# U41(X1, X2, X3) -> active# X1, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# U41(X1, X2, X3) -> active# X1, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# U41(X1, X2, X3) -> active# X1, active# U22(X1, X2) -> active# X1)
(active# U41(X1, X2, X3) -> active# X1, active# U22(X1, X2) -> U22#(active X1, X2))
(active# U41(X1, X2, X3) -> active# X1, active# U21(X1, X2) -> active# X1)
(active# U41(X1, X2, X3) -> active# X1, active# U21(X1, X2) -> U21#(active X1, X2))
(active# U41(X1, X2, X3) -> active# X1, active# U21(tt(), X) -> U22#(tt(), X))
(active# U41(X1, X2, X3) -> active# X1, active# U32(X1, X2) -> active# X1)
(active# U41(X1, X2, X3) -> active# X1, active# U32(X1, X2) -> U32#(active X1, X2))
(active# U41(X1, X2, X3) -> active# X1, active# U31(X1, X2) -> active# X1)
(active# U41(X1, X2, X3) -> active# X1, active# U31(X1, X2) -> U31#(active X1, X2))
(active# U41(X1, X2, X3) -> active# X1, active# U31(tt(), N) -> U32#(tt(), N))
(active# U41(X1, X2, X3) -> active# X1, active# U42(X1, X2, X3) -> active# X1)
(active# U41(X1, X2, X3) -> active# X1, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# U41(X1, X2, X3) -> active# X1, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# U41(X1, X2, X3) -> active# X1, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# U41(X1, X2, X3) -> active# X1, active# U41(X1, X2, X3) -> active# X1)
(active# U41(X1, X2, X3) -> active# X1, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# U41(X1, X2, X3) -> active# X1, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# U41(X1, X2, X3) -> active# X1, active# head X -> active# X)
(active# U41(X1, X2, X3) -> active# X1, active# head X -> head# active X)
(active# U41(X1, X2, X3) -> active# X1, active# head cons(N, XS) -> U31#(tt(), N))
(active# U41(X1, X2, X3) -> active# X1, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# U41(X1, X2, X3) -> active# X1, active# afterNth(X1, X2) -> active# X1)
(active# U41(X1, X2, X3) -> active# X1, active# afterNth(X1, X2) -> active# X2)
(active# U41(X1, X2, X3) -> active# X1, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# U41(X1, X2, X3) -> active# X1, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# U41(X1, X2, X3) -> active# X1, active# U52(X1, X2) -> active# X1)
(active# U41(X1, X2, X3) -> active# X1, active# U52(X1, X2) -> U52#(active X1, X2))
(active# U41(X1, X2, X3) -> active# X1, active# U51(X1, X2) -> active# X1)
(active# U41(X1, X2, X3) -> active# X1, active# U51(X1, X2) -> U51#(active X1, X2))
(active# U41(X1, X2, X3) -> active# X1, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# U41(X1, X2, X3) -> active# X1, active# U62(X1, X2, X3, X4) -> active# X1)
(active# U41(X1, X2, X3) -> active# X1, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# U41(X1, X2, X3) -> active# X1, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# U41(X1, X2, X3) -> active# X1, active# U61(X1, X2, X3, X4) -> active# X1)
(active# U41(X1, X2, X3) -> active# X1, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# U41(X1, X2, X3) -> active# X1, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# U41(X1, X2, X3) -> active# X1, active# U63(X1, X2, X3, X4) -> active# X1)
(active# U41(X1, X2, X3) -> active# X1, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# U41(X1, X2, X3) -> active# X1, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# U41(X1, X2, X3) -> active# X1, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# U41(X1, X2, X3) -> active# X1, active# U64(X1, X2) -> active# X1)
(active# U41(X1, X2, X3) -> active# X1, active# U64(X1, X2) -> U64#(active X1, X2))
(active# U41(X1, X2, X3) -> active# X1, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# U41(X1, X2, X3) -> active# X1, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# U41(X1, X2, X3) -> active# X1, active# pair(X1, X2) -> active# X1)
(active# U41(X1, X2, X3) -> active# X1, active# pair(X1, X2) -> active# X2)
(active# U41(X1, X2, X3) -> active# X1, active# pair(X1, X2) -> pair#(X1, active X2))
(active# U41(X1, X2, X3) -> active# X1, active# pair(X1, X2) -> pair#(active X1, X2))
(active# U41(X1, X2, X3) -> active# X1, active# cons(X1, X2) -> active# X1)
(active# U41(X1, X2, X3) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2))
(active# U41(X1, X2, X3) -> active# X1, active# U72(X1, X2) -> active# X1)
(active# U41(X1, X2, X3) -> active# X1, active# U72(X1, X2) -> U72#(active X1, X2))
(active# U41(X1, X2, X3) -> active# X1, active# U71(X1, X2) -> active# X1)
(active# U41(X1, X2, X3) -> active# X1, active# U71(X1, X2) -> U71#(active X1, X2))
(active# U41(X1, X2, X3) -> active# X1, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# U41(X1, X2, X3) -> active# X1, active# U82(X1, X2, X3) -> active# X1)
(active# U41(X1, X2, X3) -> active# X1, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# U41(X1, X2, X3) -> active# X1, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# U41(X1, X2, X3) -> active# X1, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# U41(X1, X2, X3) -> active# X1, active# U81(X1, X2, X3) -> active# X1)
(active# U41(X1, X2, X3) -> active# X1, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# U41(X1, X2, X3) -> active# X1, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# U41(X1, X2, X3) -> active# X1, active# fst X -> active# X)
(active# U41(X1, X2, X3) -> active# X1, active# fst X -> fst# active X)
(active# U41(X1, X2, X3) -> active# X1, active# fst pair(X, Y) -> U21#(tt(), X))
(active# U41(X1, X2, X3) -> active# X1, active# natsFrom N -> cons#(N, natsFrom s N))
(active# U41(X1, X2, X3) -> active# X1, active# natsFrom N -> natsFrom# s N)
(active# U41(X1, X2, X3) -> active# X1, active# natsFrom N -> s# N)
(active# U41(X1, X2, X3) -> active# X1, active# natsFrom X -> active# X)
(active# U41(X1, X2, X3) -> active# X1, active# natsFrom X -> natsFrom# active X)
(active# U41(X1, X2, X3) -> active# X1, active# s X -> active# X)
(active# U41(X1, X2, X3) -> active# X1, active# s X -> s# active X)
(active# U41(X1, X2, X3) -> active# X1, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# U41(X1, X2, X3) -> active# X1, active# sel(X1, X2) -> active# X1)
(active# U41(X1, X2, X3) -> active# X1, active# sel(X1, X2) -> active# X2)
(active# U41(X1, X2, X3) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2))
(active# U41(X1, X2, X3) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2))
(active# U41(X1, X2, X3) -> active# X1, active# tail X -> active# X)
(active# U41(X1, X2, X3) -> active# X1, active# tail X -> tail# active X)
(active# U41(X1, X2, X3) -> active# X1, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# U41(X1, X2, X3) -> active# X1, active# take(N, XS) -> U81#(tt(), N, XS))
(active# U41(X1, X2, X3) -> active# X1, active# take(X1, X2) -> active# X1)
(active# U41(X1, X2, X3) -> active# X1, active# take(X1, X2) -> active# X2)
(active# U41(X1, X2, X3) -> active# X1, active# take(X1, X2) -> take#(X1, active X2))
(active# U41(X1, X2, X3) -> active# X1, active# take(X1, X2) -> take#(active X1, X2))
(active# U31(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# U31(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> active# X1)
(active# U31(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# U31(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# U31(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> active# X1)
(active# U31(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# U31(X1, X2) -> active# X1, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# U31(X1, X2) -> active# X1, active# snd X -> active# X)
(active# U31(X1, X2) -> active# X1, active# snd X -> snd# active X)
(active# U31(X1, X2) -> active# X1, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# U31(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X1)
(active# U31(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X2)
(active# U31(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# U31(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# U31(X1, X2) -> active# X1, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# U31(X1, X2) -> active# X1, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# U31(X1, X2) -> active# X1, active# U22(X1, X2) -> active# X1)
(active# U31(X1, X2) -> active# X1, active# U22(X1, X2) -> U22#(active X1, X2))
(active# U31(X1, X2) -> active# X1, active# U21(X1, X2) -> active# X1)
(active# U31(X1, X2) -> active# X1, active# U21(X1, X2) -> U21#(active X1, X2))
(active# U31(X1, X2) -> active# X1, active# U21(tt(), X) -> U22#(tt(), X))
(active# U31(X1, X2) -> active# X1, active# U32(X1, X2) -> active# X1)
(active# U31(X1, X2) -> active# X1, active# U32(X1, X2) -> U32#(active X1, X2))
(active# U31(X1, X2) -> active# X1, active# U31(X1, X2) -> active# X1)
(active# U31(X1, X2) -> active# X1, active# U31(X1, X2) -> U31#(active X1, X2))
(active# U31(X1, X2) -> active# X1, active# U31(tt(), N) -> U32#(tt(), N))
(active# U31(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> active# X1)
(active# U31(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# U31(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# U31(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# U31(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> active# X1)
(active# U31(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# U31(X1, X2) -> active# X1, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# U31(X1, X2) -> active# X1, active# head X -> active# X)
(active# U31(X1, X2) -> active# X1, active# head X -> head# active X)
(active# U31(X1, X2) -> active# X1, active# head cons(N, XS) -> U31#(tt(), N))
(active# U31(X1, X2) -> active# X1, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# U31(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X1)
(active# U31(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X2)
(active# U31(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# U31(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# U31(X1, X2) -> active# X1, active# U52(X1, X2) -> active# X1)
(active# U31(X1, X2) -> active# X1, active# U52(X1, X2) -> U52#(active X1, X2))
(active# U31(X1, X2) -> active# X1, active# U51(X1, X2) -> active# X1)
(active# U31(X1, X2) -> active# X1, active# U51(X1, X2) -> U51#(active X1, X2))
(active# U31(X1, X2) -> active# X1, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# U31(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> active# X1)
(active# U31(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# U31(X1, X2) -> active# X1, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# U31(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> active# X1)
(active# U31(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# U31(X1, X2) -> active# X1, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# U31(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> active# X1)
(active# U31(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# U31(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# U31(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# U31(X1, X2) -> active# X1, active# U64(X1, X2) -> active# X1)
(active# U31(X1, X2) -> active# X1, active# U64(X1, X2) -> U64#(active X1, X2))
(active# U31(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# U31(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# U31(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X1)
(active# U31(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X2)
(active# U31(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(X1, active X2))
(active# U31(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(active X1, X2))
(active# U31(X1, X2) -> active# X1, active# cons(X1, X2) -> active# X1)
(active# U31(X1, X2) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2))
(active# U31(X1, X2) -> active# X1, active# U72(X1, X2) -> active# X1)
(active# U31(X1, X2) -> active# X1, active# U72(X1, X2) -> U72#(active X1, X2))
(active# U31(X1, X2) -> active# X1, active# U71(X1, X2) -> active# X1)
(active# U31(X1, X2) -> active# X1, active# U71(X1, X2) -> U71#(active X1, X2))
(active# U31(X1, X2) -> active# X1, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# U31(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> active# X1)
(active# U31(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# U31(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# U31(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# U31(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> active# X1)
(active# U31(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# U31(X1, X2) -> active# X1, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# U31(X1, X2) -> active# X1, active# fst X -> active# X)
(active# U31(X1, X2) -> active# X1, active# fst X -> fst# active X)
(active# U31(X1, X2) -> active# X1, active# fst pair(X, Y) -> U21#(tt(), X))
(active# U31(X1, X2) -> active# X1, active# natsFrom N -> cons#(N, natsFrom s N))
(active# U31(X1, X2) -> active# X1, active# natsFrom N -> natsFrom# s N)
(active# U31(X1, X2) -> active# X1, active# natsFrom N -> s# N)
(active# U31(X1, X2) -> active# X1, active# natsFrom X -> active# X)
(active# U31(X1, X2) -> active# X1, active# natsFrom X -> natsFrom# active X)
(active# U31(X1, X2) -> active# X1, active# s X -> active# X)
(active# U31(X1, X2) -> active# X1, active# s X -> s# active X)
(active# U31(X1, X2) -> active# X1, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# U31(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X1)
(active# U31(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X2)
(active# U31(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2))
(active# U31(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2))
(active# U31(X1, X2) -> active# X1, active# tail X -> active# X)
(active# U31(X1, X2) -> active# X1, active# tail X -> tail# active X)
(active# U31(X1, X2) -> active# X1, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# U31(X1, X2) -> active# X1, active# take(N, XS) -> U81#(tt(), N, XS))
(active# U31(X1, X2) -> active# X1, active# take(X1, X2) -> active# X1)
(active# U31(X1, X2) -> active# X1, active# take(X1, X2) -> active# X2)
(active# U31(X1, X2) -> active# X1, active# take(X1, X2) -> take#(X1, active X2))
(active# U31(X1, X2) -> active# X1, active# take(X1, X2) -> take#(active X1, X2))
(active# U21(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# U21(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> active# X1)
(active# U21(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# U21(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# U21(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> active# X1)
(active# U21(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# U21(X1, X2) -> active# X1, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# U21(X1, X2) -> active# X1, active# snd X -> active# X)
(active# U21(X1, X2) -> active# X1, active# snd X -> snd# active X)
(active# U21(X1, X2) -> active# X1, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# U21(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X1)
(active# U21(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X2)
(active# U21(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# U21(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# U21(X1, X2) -> active# X1, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# U21(X1, X2) -> active# X1, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# U21(X1, X2) -> active# X1, active# U22(X1, X2) -> active# X1)
(active# U21(X1, X2) -> active# X1, active# U22(X1, X2) -> U22#(active X1, X2))
(active# U21(X1, X2) -> active# X1, active# U21(X1, X2) -> active# X1)
(active# U21(X1, X2) -> active# X1, active# U21(X1, X2) -> U21#(active X1, X2))
(active# U21(X1, X2) -> active# X1, active# U21(tt(), X) -> U22#(tt(), X))
(active# U21(X1, X2) -> active# X1, active# U32(X1, X2) -> active# X1)
(active# U21(X1, X2) -> active# X1, active# U32(X1, X2) -> U32#(active X1, X2))
(active# U21(X1, X2) -> active# X1, active# U31(X1, X2) -> active# X1)
(active# U21(X1, X2) -> active# X1, active# U31(X1, X2) -> U31#(active X1, X2))
(active# U21(X1, X2) -> active# X1, active# U31(tt(), N) -> U32#(tt(), N))
(active# U21(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> active# X1)
(active# U21(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# U21(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# U21(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# U21(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> active# X1)
(active# U21(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# U21(X1, X2) -> active# X1, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# U21(X1, X2) -> active# X1, active# head X -> active# X)
(active# U21(X1, X2) -> active# X1, active# head X -> head# active X)
(active# U21(X1, X2) -> active# X1, active# head cons(N, XS) -> U31#(tt(), N))
(active# U21(X1, X2) -> active# X1, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# U21(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X1)
(active# U21(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X2)
(active# U21(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# U21(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# U21(X1, X2) -> active# X1, active# U52(X1, X2) -> active# X1)
(active# U21(X1, X2) -> active# X1, active# U52(X1, X2) -> U52#(active X1, X2))
(active# U21(X1, X2) -> active# X1, active# U51(X1, X2) -> active# X1)
(active# U21(X1, X2) -> active# X1, active# U51(X1, X2) -> U51#(active X1, X2))
(active# U21(X1, X2) -> active# X1, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# U21(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> active# X1)
(active# U21(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# U21(X1, X2) -> active# X1, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# U21(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> active# X1)
(active# U21(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# U21(X1, X2) -> active# X1, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# U21(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> active# X1)
(active# U21(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# U21(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# U21(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# U21(X1, X2) -> active# X1, active# U64(X1, X2) -> active# X1)
(active# U21(X1, X2) -> active# X1, active# U64(X1, X2) -> U64#(active X1, X2))
(active# U21(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# U21(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# U21(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X1)
(active# U21(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X2)
(active# U21(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(X1, active X2))
(active# U21(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(active X1, X2))
(active# U21(X1, X2) -> active# X1, active# cons(X1, X2) -> active# X1)
(active# U21(X1, X2) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2))
(active# U21(X1, X2) -> active# X1, active# U72(X1, X2) -> active# X1)
(active# U21(X1, X2) -> active# X1, active# U72(X1, X2) -> U72#(active X1, X2))
(active# U21(X1, X2) -> active# X1, active# U71(X1, X2) -> active# X1)
(active# U21(X1, X2) -> active# X1, active# U71(X1, X2) -> U71#(active X1, X2))
(active# U21(X1, X2) -> active# X1, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# U21(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> active# X1)
(active# U21(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# U21(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# U21(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# U21(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> active# X1)
(active# U21(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# U21(X1, X2) -> active# X1, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# U21(X1, X2) -> active# X1, active# fst X -> active# X)
(active# U21(X1, X2) -> active# X1, active# fst X -> fst# active X)
(active# U21(X1, X2) -> active# X1, active# fst pair(X, Y) -> U21#(tt(), X))
(active# U21(X1, X2) -> active# X1, active# natsFrom N -> cons#(N, natsFrom s N))
(active# U21(X1, X2) -> active# X1, active# natsFrom N -> natsFrom# s N)
(active# U21(X1, X2) -> active# X1, active# natsFrom N -> s# N)
(active# U21(X1, X2) -> active# X1, active# natsFrom X -> active# X)
(active# U21(X1, X2) -> active# X1, active# natsFrom X -> natsFrom# active X)
(active# U21(X1, X2) -> active# X1, active# s X -> active# X)
(active# U21(X1, X2) -> active# X1, active# s X -> s# active X)
(active# U21(X1, X2) -> active# X1, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# U21(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X1)
(active# U21(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X2)
(active# U21(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2))
(active# U21(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2))
(active# U21(X1, X2) -> active# X1, active# tail X -> active# X)
(active# U21(X1, X2) -> active# X1, active# tail X -> tail# active X)
(active# U21(X1, X2) -> active# X1, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# U21(X1, X2) -> active# X1, active# take(N, XS) -> U81#(tt(), N, XS))
(active# U21(X1, X2) -> active# X1, active# take(X1, X2) -> active# X1)
(active# U21(X1, X2) -> active# X1, active# take(X1, X2) -> active# X2)
(active# U21(X1, X2) -> active# X1, active# take(X1, X2) -> take#(X1, active X2))
(active# U21(X1, X2) -> active# X1, active# take(X1, X2) -> take#(active X1, X2))
(active# splitAt(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# splitAt(X1, X2) -> active# X1, active# U12(X1, X2, X3) -> active# X1)
(active# splitAt(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# splitAt(X1, X2) -> active# X1, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# splitAt(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> active# X1)
(active# splitAt(X1, X2) -> active# X1, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# splitAt(X1, X2) -> active# X1, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# splitAt(X1, X2) -> active# X1, active# snd X -> active# X)
(active# splitAt(X1, X2) -> active# X1, active# snd X -> snd# active X)
(active# splitAt(X1, X2) -> active# X1, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# splitAt(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X1)
(active# splitAt(X1, X2) -> active# X1, active# splitAt(X1, X2) -> active# X2)
(active# splitAt(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# splitAt(X1, X2) -> active# X1, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# splitAt(X1, X2) -> active# X1, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# splitAt(X1, X2) -> active# X1, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# splitAt(X1, X2) -> active# X1, active# U22(X1, X2) -> active# X1)
(active# splitAt(X1, X2) -> active# X1, active# U22(X1, X2) -> U22#(active X1, X2))
(active# splitAt(X1, X2) -> active# X1, active# U21(X1, X2) -> active# X1)
(active# splitAt(X1, X2) -> active# X1, active# U21(X1, X2) -> U21#(active X1, X2))
(active# splitAt(X1, X2) -> active# X1, active# U21(tt(), X) -> U22#(tt(), X))
(active# splitAt(X1, X2) -> active# X1, active# U32(X1, X2) -> active# X1)
(active# splitAt(X1, X2) -> active# X1, active# U32(X1, X2) -> U32#(active X1, X2))
(active# splitAt(X1, X2) -> active# X1, active# U31(X1, X2) -> active# X1)
(active# splitAt(X1, X2) -> active# X1, active# U31(X1, X2) -> U31#(active X1, X2))
(active# splitAt(X1, X2) -> active# X1, active# U31(tt(), N) -> U32#(tt(), N))
(active# splitAt(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> active# X1)
(active# splitAt(X1, X2) -> active# X1, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# splitAt(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# splitAt(X1, X2) -> active# X1, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# splitAt(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> active# X1)
(active# splitAt(X1, X2) -> active# X1, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# splitAt(X1, X2) -> active# X1, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# splitAt(X1, X2) -> active# X1, active# head X -> active# X)
(active# splitAt(X1, X2) -> active# X1, active# head X -> head# active X)
(active# splitAt(X1, X2) -> active# X1, active# head cons(N, XS) -> U31#(tt(), N))
(active# splitAt(X1, X2) -> active# X1, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# splitAt(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X1)
(active# splitAt(X1, X2) -> active# X1, active# afterNth(X1, X2) -> active# X2)
(active# splitAt(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# splitAt(X1, X2) -> active# X1, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# splitAt(X1, X2) -> active# X1, active# U52(X1, X2) -> active# X1)
(active# splitAt(X1, X2) -> active# X1, active# U52(X1, X2) -> U52#(active X1, X2))
(active# splitAt(X1, X2) -> active# X1, active# U51(X1, X2) -> active# X1)
(active# splitAt(X1, X2) -> active# X1, active# U51(X1, X2) -> U51#(active X1, X2))
(active# splitAt(X1, X2) -> active# X1, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# splitAt(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> active# X1)
(active# splitAt(X1, X2) -> active# X1, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# splitAt(X1, X2) -> active# X1, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# splitAt(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> active# X1)
(active# splitAt(X1, X2) -> active# X1, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# splitAt(X1, X2) -> active# X1, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# splitAt(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> active# X1)
(active# splitAt(X1, X2) -> active# X1, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# splitAt(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# splitAt(X1, X2) -> active# X1, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# splitAt(X1, X2) -> active# X1, active# U64(X1, X2) -> active# X1)
(active# splitAt(X1, X2) -> active# X1, active# U64(X1, X2) -> U64#(active X1, X2))
(active# splitAt(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# splitAt(X1, X2) -> active# X1, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# splitAt(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X1)
(active# splitAt(X1, X2) -> active# X1, active# pair(X1, X2) -> active# X2)
(active# splitAt(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(X1, active X2))
(active# splitAt(X1, X2) -> active# X1, active# pair(X1, X2) -> pair#(active X1, X2))
(active# splitAt(X1, X2) -> active# X1, active# cons(X1, X2) -> active# X1)
(active# splitAt(X1, X2) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2))
(active# splitAt(X1, X2) -> active# X1, active# U72(X1, X2) -> active# X1)
(active# splitAt(X1, X2) -> active# X1, active# U72(X1, X2) -> U72#(active X1, X2))
(active# splitAt(X1, X2) -> active# X1, active# U71(X1, X2) -> active# X1)
(active# splitAt(X1, X2) -> active# X1, active# U71(X1, X2) -> U71#(active X1, X2))
(active# splitAt(X1, X2) -> active# X1, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# splitAt(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> active# X1)
(active# splitAt(X1, X2) -> active# X1, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# splitAt(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# splitAt(X1, X2) -> active# X1, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# splitAt(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> active# X1)
(active# splitAt(X1, X2) -> active# X1, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# splitAt(X1, X2) -> active# X1, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# splitAt(X1, X2) -> active# X1, active# fst X -> active# X)
(active# splitAt(X1, X2) -> active# X1, active# fst X -> fst# active X)
(active# splitAt(X1, X2) -> active# X1, active# fst pair(X, Y) -> U21#(tt(), X))
(active# splitAt(X1, X2) -> active# X1, active# natsFrom N -> cons#(N, natsFrom s N))
(active# splitAt(X1, X2) -> active# X1, active# natsFrom N -> natsFrom# s N)
(active# splitAt(X1, X2) -> active# X1, active# natsFrom N -> s# N)
(active# splitAt(X1, X2) -> active# X1, active# natsFrom X -> active# X)
(active# splitAt(X1, X2) -> active# X1, active# natsFrom X -> natsFrom# active X)
(active# splitAt(X1, X2) -> active# X1, active# s X -> active# X)
(active# splitAt(X1, X2) -> active# X1, active# s X -> s# active X)
(active# splitAt(X1, X2) -> active# X1, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# splitAt(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X1)
(active# splitAt(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X2)
(active# splitAt(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2))
(active# splitAt(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2))
(active# splitAt(X1, X2) -> active# X1, active# tail X -> active# X)
(active# splitAt(X1, X2) -> active# X1, active# tail X -> tail# active X)
(active# splitAt(X1, X2) -> active# X1, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# splitAt(X1, X2) -> active# X1, active# take(N, XS) -> U81#(tt(), N, XS))
(active# splitAt(X1, X2) -> active# X1, active# take(X1, X2) -> active# X1)
(active# splitAt(X1, X2) -> active# X1, active# take(X1, X2) -> active# X2)
(active# splitAt(X1, X2) -> active# X1, active# take(X1, X2) -> take#(X1, active X2))
(active# splitAt(X1, X2) -> active# X1, active# take(X1, X2) -> take#(active X1, X2))
(active# U12(X1, X2, X3) -> active# X1, active# U12(X1, X2, X3) -> U12#(active X1, X2, X3))
(active# U12(X1, X2, X3) -> active# X1, active# U12(X1, X2, X3) -> active# X1)
(active# U12(X1, X2, X3) -> active# X1, active# U12(tt(), N, XS) -> snd# splitAt(N, XS))
(active# U12(X1, X2, X3) -> active# X1, active# U12(tt(), N, XS) -> splitAt#(N, XS))
(active# U12(X1, X2, X3) -> active# X1, active# U11(X1, X2, X3) -> active# X1)
(active# U12(X1, X2, X3) -> active# X1, active# U11(X1, X2, X3) -> U11#(active X1, X2, X3))
(active# U12(X1, X2, X3) -> active# X1, active# U11(tt(), N, XS) -> U12#(tt(), N, XS))
(active# U12(X1, X2, X3) -> active# X1, active# snd X -> active# X)
(active# U12(X1, X2, X3) -> active# X1, active# snd X -> snd# active X)
(active# U12(X1, X2, X3) -> active# X1, active# snd pair(X, Y) -> U51#(tt(), Y))
(active# U12(X1, X2, X3) -> active# X1, active# splitAt(X1, X2) -> active# X1)
(active# U12(X1, X2, X3) -> active# X1, active# splitAt(X1, X2) -> active# X2)
(active# U12(X1, X2, X3) -> active# X1, active# splitAt(X1, X2) -> splitAt#(X1, active X2))
(active# U12(X1, X2, X3) -> active# X1, active# splitAt(X1, X2) -> splitAt#(active X1, X2))
(active# U12(X1, X2, X3) -> active# X1, active# splitAt(s N, cons(X, XS)) -> U61#(tt(), N, X, XS))
(active# U12(X1, X2, X3) -> active# X1, active# splitAt(0(), XS) -> pair#(nil(), XS))
(active# U12(X1, X2, X3) -> active# X1, active# U22(X1, X2) -> active# X1)
(active# U12(X1, X2, X3) -> active# X1, active# U22(X1, X2) -> U22#(active X1, X2))
(active# U12(X1, X2, X3) -> active# X1, active# U21(X1, X2) -> active# X1)
(active# U12(X1, X2, X3) -> active# X1, active# U21(X1, X2) -> U21#(active X1, X2))
(active# U12(X1, X2, X3) -> active# X1, active# U21(tt(), X) -> U22#(tt(), X))
(active# U12(X1, X2, X3) -> active# X1, active# U32(X1, X2) -> active# X1)
(active# U12(X1, X2, X3) -> active# X1, active# U32(X1, X2) -> U32#(active X1, X2))
(active# U12(X1, X2, X3) -> active# X1, active# U31(X1, X2) -> active# X1)
(active# U12(X1, X2, X3) -> active# X1, active# U31(X1, X2) -> U31#(active X1, X2))
(active# U12(X1, X2, X3) -> active# X1, active# U31(tt(), N) -> U32#(tt(), N))
(active# U12(X1, X2, X3) -> active# X1, active# U42(X1, X2, X3) -> active# X1)
(active# U12(X1, X2, X3) -> active# X1, active# U42(X1, X2, X3) -> U42#(active X1, X2, X3))
(active# U12(X1, X2, X3) -> active# X1, active# U42(tt(), N, XS) -> head# afterNth(N, XS))
(active# U12(X1, X2, X3) -> active# X1, active# U42(tt(), N, XS) -> afterNth#(N, XS))
(active# U12(X1, X2, X3) -> active# X1, active# U41(X1, X2, X3) -> active# X1)
(active# U12(X1, X2, X3) -> active# X1, active# U41(X1, X2, X3) -> U41#(active X1, X2, X3))
(active# U12(X1, X2, X3) -> active# X1, active# U41(tt(), N, XS) -> U42#(tt(), N, XS))
(active# U12(X1, X2, X3) -> active# X1, active# head X -> active# X)
(active# U12(X1, X2, X3) -> active# X1, active# head X -> head# active X)
(active# U12(X1, X2, X3) -> active# X1, active# head cons(N, XS) -> U31#(tt(), N))
(active# U12(X1, X2, X3) -> active# X1, active# afterNth(N, XS) -> U11#(tt(), N, XS))
(active# U12(X1, X2, X3) -> active# X1, active# afterNth(X1, X2) -> active# X1)
(active# U12(X1, X2, X3) -> active# X1, active# afterNth(X1, X2) -> active# X2)
(active# U12(X1, X2, X3) -> active# X1, active# afterNth(X1, X2) -> afterNth#(X1, active X2))
(active# U12(X1, X2, X3) -> active# X1, active# afterNth(X1, X2) -> afterNth#(active X1, X2))
(active# U12(X1, X2, X3) -> active# X1, active# U52(X1, X2) -> active# X1)
(active# U12(X1, X2, X3) -> active# X1, active# U52(X1, X2) -> U52#(active X1, X2))
(active# U12(X1, X2, X3) -> active# X1, active# U51(X1, X2) -> active# X1)
(active# U12(X1, X2, X3) -> active# X1, active# U51(X1, X2) -> U51#(active X1, X2))
(active# U12(X1, X2, X3) -> active# X1, active# U51(tt(), Y) -> U52#(tt(), Y))
(active# U12(X1, X2, X3) -> active# X1, active# U62(X1, X2, X3, X4) -> active# X1)
(active# U12(X1, X2, X3) -> active# X1, active# U62(X1, X2, X3, X4) -> U62#(active X1, X2, X3, X4))
(active# U12(X1, X2, X3) -> active# X1, active# U62(tt(), N, X, XS) -> U63#(tt(), N, X, XS))
(active# U12(X1, X2, X3) -> active# X1, active# U61(X1, X2, X3, X4) -> active# X1)
(active# U12(X1, X2, X3) -> active# X1, active# U61(X1, X2, X3, X4) -> U61#(active X1, X2, X3, X4))
(active# U12(X1, X2, X3) -> active# X1, active# U61(tt(), N, X, XS) -> U62#(tt(), N, X, XS))
(active# U12(X1, X2, X3) -> active# X1, active# U63(X1, X2, X3, X4) -> active# X1)
(active# U12(X1, X2, X3) -> active# X1, active# U63(X1, X2, X3, X4) -> U63#(active X1, X2, X3, X4))
(active# U12(X1, X2, X3) -> active# X1, active# U63(tt(), N, X, XS) -> splitAt#(N, XS))
(active# U12(X1, X2, X3) -> active# X1, active# U63(tt(), N, X, XS) -> U64#(splitAt(N, XS), X))
(active# U12(X1, X2, X3) -> active# X1, active# U64(X1, X2) -> active# X1)
(active# U12(X1, X2, X3) -> active# X1, active# U64(X1, X2) -> U64#(active X1, X2))
(active# U12(X1, X2, X3) -> active# X1, active# U64(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS))
(active# U12(X1, X2, X3) -> active# X1, active# U64(pair(YS, ZS), X) -> cons#(X, YS))
(active# U12(X1, X2, X3) -> active# X1, active# pair(X1, X2) -> active# X1)
(active# U12(X1, X2, X3) -> active# X1, active# pair(X1, X2) -> active# X2)
(active# U12(X1, X2, X3) -> active# X1, active# pair(X1, X2) -> pair#(X1, active X2))
(active# U12(X1, X2, X3) -> active# X1, active# pair(X1, X2) -> pair#(active X1, X2))
(active# U12(X1, X2, X3) -> active# X1, active# cons(X1, X2) -> active# X1)
(active# U12(X1, X2, X3) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2))
(active# U12(X1, X2, X3) -> active# X1, active# U72(X1, X2) -> active# X1)
(active# U12(X1, X2, X3) -> active# X1, active# U72(X1, X2) -> U72#(active X1, X2))
(active# U12(X1, X2, X3) -> active# X1, active# U71(X1, X2) -> active# X1)
(active# U12(X1, X2, X3) -> active# X1, active# U71(X1, X2) -> U71#(active X1, X2))
(active# U12(X1, X2, X3) -> active# X1, active# U71(tt(), XS) -> U72#(tt(), XS))
(active# U12(X1, X2, X3) -> active# X1, active# U82(X1, X2, X3) -> active# X1)
(active# U12(X1, X2, X3) -> active# X1, active# U82(X1, X2, X3) -> U82#(active X1, X2, X3))
(active# U12(X1, X2, X3) -> active# X1, active# U82(tt(), N, XS) -> splitAt#(N, XS))
(active# U12(X1, X2, X3) -> active# X1, active# U82(tt(), N, XS) -> fst# splitAt(N, XS))
(active# U12(X1, X2, X3) -> active# X1, active# U81(X1, X2, X3) -> active# X1)
(active# U12(X1, X2, X3) -> active# X1, active# U81(X1, X2, X3) -> U81#(active X1, X2, X3))
(active# U12(X1, X2, X3) -> active# X1, active# U81(tt(), N, XS) -> U82#(tt(), N, XS))
(active# U12(X1, X2, X3) -> active# X1, active# fst X -> active# X)
(active# U12(X1, X2, X3) -> active# X1, active# fst X -> fst# active X)
(active# U12(X1, X2, X3) -> active# X1, active# fst pair(X, Y) -> U21#(tt(), X))
(active# U12(X1, X2, X3) -> active# X1, active# natsFrom N -> cons#(N, natsFrom s N))
(active# U12(X1, X2, X3) -> active# X1, active# natsFrom N -> natsFrom# s N)
(active# U12(X1, X2, X3) -> active# X1, active# natsFrom N -> s# N)
(active# U12(X1, X2, X3) -> active# X1, active# natsFrom X -> active# X)
(active# U12(X1, X2, X3) -> active# X1, active# natsFrom X -> natsFrom# active X)
(active# U12(X1, X2, X3) -> active# X1, active# s X -> active# X)
(active# U12(X1, X2, X3) -> active# X1, active# s X -> s# active X)
(active# U12(X1, X2, X3) -> active# X1, active# sel(N, XS) -> U41#(tt(), N, XS))
(active# U12(X1, X2, X3) -> active# X1, active# sel(X1, X2) -> active# X1)
(active# U12(X1, X2, X3) -> active# X1, active# sel(X1, X2) -> active# X2)
(active# U12(X1, X2, X3) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2))
(active# U12(X1, X2, X3) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2))
(active# U12(X1, X2, X3) -> active# X1, active# tail X -> active# X)
(active# U12(X1, X2, X3) -> active# X1, active# tail X -> tail# active X)
(active# U12(X1, X2, X3) -> active# X1, active# tail cons(N, XS) -> U71#(tt(), XS))
(active# U12(X1, X2, X3) -> active# X1, active# take(N, XS) -> U81#(tt(), N, XS))
(active# U12(X1, X2, X3) -> active# X1, active# take(X1, X2) -> active# X1)
(active# U12(X1, X2, X3) -> active# X1, active# take(X1, X2) -> active# X2)
(active# U12(X1, X2, X3) -> active# X1, active# take(X1, X2) -> take#(X1, active X2))
(active# U12(X1, X2, X3) -> active# X1, active# take(X1, X2) -> take#(active X1, X2))
(proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3), U82#(mark X1, X2, X3) -> U82#(X1, X2, X3))
(proper# U82(X1, X2, X3) -> U82#(proper X1, proper X2, proper X3), U82#(ok X1, ok X2, ok X3) -> U82#(X1, X2, X3))
(proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3), U42#(mark X1, X2, X3) -> U42#(X1, X2, X3))
(proper# U42(X1, X2, X3) -> U42#(proper X1, proper X2, proper X3), U42#(ok X1, ok X2, ok X3) -> U42#(X1, X2, X3))
(proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3), U12#(mark X1, X2, X3) -> U12#(X1, X2, X3))
(proper# U12(X1, X2, X3) -> U12#(proper X1, proper X2, proper X3), U12#(ok X1, ok X2, ok X3) -> U12#(X1, X2, X3))
}
STATUS:
arrows: 0.852747
SCCS (33):
Scc:
{top# mark X -> top# proper X,
top# ok X -> top# active X}
Scc:
{ proper# U12(X1, X2, X3) -> proper# X1,
proper# U12(X1, X2, X3) -> proper# X2,
proper# U12(X1, X2, X3) -> proper# X3,
proper# U11(X1, X2, X3) -> proper# X1,
proper# U11(X1, X2, X3) -> proper# X2,
proper# U11(X1, X2, X3) -> proper# X3,
proper# snd X -> proper# X,
proper# splitAt(X1, X2) -> proper# X1,
proper# splitAt(X1, X2) -> proper# X2,
proper# U22(X1, X2) -> proper# X1,
proper# U22(X1, X2) -> proper# X2,
proper# U21(X1, X2) -> proper# X1,
proper# U21(X1, X2) -> proper# X2,
proper# U32(X1, X2) -> proper# X1,
proper# U32(X1, X2) -> proper# X2,
proper# U31(X1, X2) -> proper# X1,
proper# U31(X1, X2) -> proper# X2,
proper# U42(X1, X2, X3) -> proper# X1,
proper# U42(X1, X2, X3) -> proper# X2,
proper# U42(X1, X2, X3) -> proper# X3,
proper# U41(X1, X2, X3) -> proper# X1,
proper# U41(X1, X2, X3) -> proper# X2,
proper# U41(X1, X2, X3) -> proper# X3,
proper# head X -> proper# X,
proper# afterNth(X1, X2) -> proper# X1,
proper# afterNth(X1, X2) -> proper# X2,
proper# U52(X1, X2) -> proper# X1,
proper# U52(X1, X2) -> proper# X2,
proper# U51(X1, X2) -> proper# X1,
proper# U51(X1, X2) -> proper# X2,
proper# U62(X1, X2, X3, X4) -> proper# X1,
proper# U62(X1, X2, X3, X4) -> proper# X2,
proper# U62(X1, X2, X3, X4) -> proper# X3,
proper# U62(X1, X2, X3, X4) -> proper# X4,
proper# U61(X1, X2, X3, X4) -> proper# X1,
proper# U61(X1, X2, X3, X4) -> proper# X2,
proper# U61(X1, X2, X3, X4) -> proper# X3,
proper# U61(X1, X2, X3, X4) -> proper# X4,
proper# U63(X1, X2, X3, X4) -> proper# X1,
proper# U63(X1, X2, X3, X4) -> proper# X2,
proper# U63(X1, X2, X3, X4) -> proper# X3,
proper# U63(X1, X2, X3, X4) -> proper# X4,
proper# U64(X1, X2) -> proper# X1,
proper# U64(X1, X2) -> proper# X2,
proper# pair(X1, X2) -> proper# X1,
proper# pair(X1, X2) -> proper# X2,
proper# cons(X1, X2) -> proper# X1,
proper# cons(X1, X2) -> proper# X2,
proper# U72(X1, X2) -> proper# X1,
proper# U72(X1, X2) -> proper# X2,
proper# U71(X1, X2) -> proper# X1,
proper# U71(X1, X2) -> proper# X2,
proper# U82(X1, X2, X3) -> proper# X1,
proper# U82(X1, X2, X3) -> proper# X2,
proper# U82(X1, X2, X3) -> proper# X3,
proper# U81(X1, X2, X3) -> proper# X1,
proper# U81(X1, X2, X3) -> proper# X2,
proper# U81(X1, X2, X3) -> proper# X3,
proper# fst X -> proper# X,
proper# natsFrom X -> proper# X,
proper# s X -> proper# X,
proper# sel(X1, X2) -> proper# X1,
proper# sel(X1, X2) -> proper# X2,
proper# tail X -> proper# X,
proper# take(X1, X2) -> proper# X1,
proper# take(X1, X2) -> proper# X2}
Scc:
{ active# U12(X1, X2, X3) -> active# X1,
active# U11(X1, X2, X3) -> active# X1,
active# snd X -> active# X,
active# splitAt(X1, X2) -> active# X1,
active# splitAt(X1, X2) -> active# X2,
active# U22(X1, X2) -> active# X1,
active# U21(X1, X2) -> active# X1,
active# U32(X1, X2) -> active# X1,
active# U31(X1, X2) -> active# X1,
active# U42(X1, X2, X3) -> active# X1,
active# U41(X1, X2, X3) -> active# X1,
active# head X -> active# X,
active# afterNth(X1, X2) -> active# X1,
active# afterNth(X1, X2) -> active# X2,
active# U52(X1, X2) -> active# X1,
active# U51(X1, X2) -> active# X1,
active# U62(X1, X2, X3, X4) -> active# X1,
active# U61(X1, X2, X3, X4) -> active# X1,
active# U63(X1, X2, X3, X4) -> active# X1,
active# U64(X1, X2) -> active# X1,
active# pair(X1, X2) -> active# X1,
active# pair(X1, X2) -> active# X2,
active# cons(X1, X2) -> active# X1,
active# U72(X1, X2) -> active# X1,
active# U71(X1, X2) -> active# X1,
active# U82(X1, X2, X3) -> active# X1,
active# U81(X1, X2, X3) -> active# X1,
active# fst X -> active# X,
active# natsFrom X -> active# X,
active# s X -> active# X,
active# sel(X1, X2) -> active# X1,
active# sel(X1, X2) -> active# X2,
active# tail X -> active# X,
active# take(X1, X2) -> active# X1,
active# take(X1, X2) -> active# X2}
Scc:
{ take#(X1, mark X2) -> take#(X1, X2),
take#(mark X1, X2) -> take#(X1, X2),
take#(ok X1, ok X2) -> take#(X1, X2)}
Scc:
{tail# mark X -> tail# X,
tail# ok X -> tail# X}
Scc:
{ sel#(X1, mark X2) -> sel#(X1, X2),
sel#(mark X1, X2) -> sel#(X1, X2),
sel#(ok X1, ok X2) -> sel#(X1, X2)}
Scc:
{s# mark X -> s# X,
s# ok X -> s# X}
Scc:
{natsFrom# mark X -> natsFrom# X,
natsFrom# ok X -> natsFrom# X}
Scc:
{fst# mark X -> fst# X,
fst# ok X -> fst# X}
Scc:
{ U71#(mark X1, X2) -> U71#(X1, X2),
U71#(ok X1, ok X2) -> U71#(X1, X2)}
Scc:
{ U72#(mark X1, X2) -> U72#(X1, X2),
U72#(ok X1, ok X2) -> U72#(X1, X2)}
Scc:
{ cons#(mark X1, X2) -> cons#(X1, X2),
cons#(ok X1, ok X2) -> cons#(X1, X2)}
Scc:
{ U64#(mark X1, X2) -> U64#(X1, X2),
U64#(ok X1, ok X2) -> U64#(X1, X2)}
Scc:
{ U63#(mark X1, X2, X3, X4) -> U63#(X1, X2, X3, X4),
U63#(ok X1, ok X2, ok X3, ok X4) -> U63#(X1, X2, X3, X4)}
Scc:
{ U62#(mark X1, X2, X3, X4) -> U62#(X1, X2, X3, X4),
U62#(ok X1, ok X2, ok X3, ok X4) -> U62#(X1, X2, X3, X4)}
Scc:
{ U52#(mark X1, X2) -> U52#(X1, X2),
U52#(ok X1, ok X2) -> U52#(X1, X2)}
Scc:
{ afterNth#(X1, mark X2) -> afterNth#(X1, X2),
afterNth#(mark X1, X2) -> afterNth#(X1, X2),
afterNth#(ok X1, ok X2) -> afterNth#(X1, X2)}
Scc:
{head# mark X -> head# X,
head# ok X -> head# X}
Scc:
{ U31#(mark X1, X2) -> U31#(X1, X2),
U31#(ok X1, ok X2) -> U31#(X1, X2)}
Scc:
{ U32#(mark X1, X2) -> U32#(X1, X2),
U32#(ok X1, ok X2) -> U32#(X1, X2)}
Scc:
{ U21#(mark X1, X2) -> U21#(X1, X2),
U21#(ok X1, ok X2) -> U21#(X1, X2)}
Scc:
{ U22#(mark X1, X2) -> U22#(X1, X2),
U22#(ok X1, ok X2) -> U22#(X1, X2)}
Scc:
{ pair#(X1, mark X2) -> pair#(X1, X2),
pair#(mark X1, X2) -> pair#(X1, X2),
pair#(ok X1, ok X2) -> pair#(X1, X2)}
Scc:
{ U61#(mark X1, X2, X3, X4) -> U61#(X1, X2, X3, X4),
U61#(ok X1, ok X2, ok X3, ok X4) -> U61#(X1, X2, X3, X4)}
Scc:
{ U51#(mark X1, X2) -> U51#(X1, X2),
U51#(ok X1, ok X2) -> U51#(X1, X2)}
Scc:
{ splitAt#(X1, mark X2) -> splitAt#(X1, X2),
splitAt#(mark X1, X2) -> splitAt#(X1, X2),
splitAt#(ok X1, ok X2) -> splitAt#(X1, X2)}
Scc:
{snd# mark X -> snd# X,
snd# ok X -> snd# X}
Scc:
{ U81#(mark X1, X2, X3) -> U81#(X1, X2, X3),
U81#(ok X1, ok X2, ok X3) -> U81#(X1, X2, X3)}
Scc:
{ U82#(mark X1, X2, X3) -> U82#(X1, X2, X3),
U82#(ok X1, ok X2, ok X3) -> U82#(X1, X2, X3)}
Scc:
{ U41#(mark X1, X2, X3) -> U41#(X1, X2, X3),
U41#(ok X1, ok X2, ok X3) -> U41#(X1, X2, X3)}
Scc:
{ U42#(mark X1, X2, X3) -> U42#(X1, X2, X3),
U42#(ok X1, ok X2, ok X3) -> U42#(X1, X2, X3)}
Scc:
{ U11#(mark X1, X2, X3) -> U11#(X1, X2, X3),
U11#(ok X1, ok X2, ok X3) -> U11#(X1, X2, X3)}
Scc:
{ U12#(mark X1, X2, X3) -> U12#(X1, X2, X3),
U12#(ok X1, ok X2, ok X3) -> U12#(X1, X2, X3)}
SCC (2):
Strict:
{top# mark X -> top# proper X,
top# ok X -> top# active X}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (66):
Strict:
{ proper# U12(X1, X2, X3) -> proper# X1,
proper# U12(X1, X2, X3) -> proper# X2,
proper# U12(X1, X2, X3) -> proper# X3,
proper# U11(X1, X2, X3) -> proper# X1,
proper# U11(X1, X2, X3) -> proper# X2,
proper# U11(X1, X2, X3) -> proper# X3,
proper# snd X -> proper# X,
proper# splitAt(X1, X2) -> proper# X1,
proper# splitAt(X1, X2) -> proper# X2,
proper# U22(X1, X2) -> proper# X1,
proper# U22(X1, X2) -> proper# X2,
proper# U21(X1, X2) -> proper# X1,
proper# U21(X1, X2) -> proper# X2,
proper# U32(X1, X2) -> proper# X1,
proper# U32(X1, X2) -> proper# X2,
proper# U31(X1, X2) -> proper# X1,
proper# U31(X1, X2) -> proper# X2,
proper# U42(X1, X2, X3) -> proper# X1,
proper# U42(X1, X2, X3) -> proper# X2,
proper# U42(X1, X2, X3) -> proper# X3,
proper# U41(X1, X2, X3) -> proper# X1,
proper# U41(X1, X2, X3) -> proper# X2,
proper# U41(X1, X2, X3) -> proper# X3,
proper# head X -> proper# X,
proper# afterNth(X1, X2) -> proper# X1,
proper# afterNth(X1, X2) -> proper# X2,
proper# U52(X1, X2) -> proper# X1,
proper# U52(X1, X2) -> proper# X2,
proper# U51(X1, X2) -> proper# X1,
proper# U51(X1, X2) -> proper# X2,
proper# U62(X1, X2, X3, X4) -> proper# X1,
proper# U62(X1, X2, X3, X4) -> proper# X2,
proper# U62(X1, X2, X3, X4) -> proper# X3,
proper# U62(X1, X2, X3, X4) -> proper# X4,
proper# U61(X1, X2, X3, X4) -> proper# X1,
proper# U61(X1, X2, X3, X4) -> proper# X2,
proper# U61(X1, X2, X3, X4) -> proper# X3,
proper# U61(X1, X2, X3, X4) -> proper# X4,
proper# U63(X1, X2, X3, X4) -> proper# X1,
proper# U63(X1, X2, X3, X4) -> proper# X2,
proper# U63(X1, X2, X3, X4) -> proper# X3,
proper# U63(X1, X2, X3, X4) -> proper# X4,
proper# U64(X1, X2) -> proper# X1,
proper# U64(X1, X2) -> proper# X2,
proper# pair(X1, X2) -> proper# X1,
proper# pair(X1, X2) -> proper# X2,
proper# cons(X1, X2) -> proper# X1,
proper# cons(X1, X2) -> proper# X2,
proper# U72(X1, X2) -> proper# X1,
proper# U72(X1, X2) -> proper# X2,
proper# U71(X1, X2) -> proper# X1,
proper# U71(X1, X2) -> proper# X2,
proper# U82(X1, X2, X3) -> proper# X1,
proper# U82(X1, X2, X3) -> proper# X2,
proper# U82(X1, X2, X3) -> proper# X3,
proper# U81(X1, X2, X3) -> proper# X1,
proper# U81(X1, X2, X3) -> proper# X2,
proper# U81(X1, X2, X3) -> proper# X3,
proper# fst X -> proper# X,
proper# natsFrom X -> proper# X,
proper# s X -> proper# X,
proper# sel(X1, X2) -> proper# X1,
proper# sel(X1, X2) -> proper# X2,
proper# tail X -> proper# X,
proper# take(X1, X2) -> proper# X1,
proper# take(X1, X2) -> proper# X2}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (35):
Strict:
{ active# U12(X1, X2, X3) -> active# X1,
active# U11(X1, X2, X3) -> active# X1,
active# snd X -> active# X,
active# splitAt(X1, X2) -> active# X1,
active# splitAt(X1, X2) -> active# X2,
active# U22(X1, X2) -> active# X1,
active# U21(X1, X2) -> active# X1,
active# U32(X1, X2) -> active# X1,
active# U31(X1, X2) -> active# X1,
active# U42(X1, X2, X3) -> active# X1,
active# U41(X1, X2, X3) -> active# X1,
active# head X -> active# X,
active# afterNth(X1, X2) -> active# X1,
active# afterNth(X1, X2) -> active# X2,
active# U52(X1, X2) -> active# X1,
active# U51(X1, X2) -> active# X1,
active# U62(X1, X2, X3, X4) -> active# X1,
active# U61(X1, X2, X3, X4) -> active# X1,
active# U63(X1, X2, X3, X4) -> active# X1,
active# U64(X1, X2) -> active# X1,
active# pair(X1, X2) -> active# X1,
active# pair(X1, X2) -> active# X2,
active# cons(X1, X2) -> active# X1,
active# U72(X1, X2) -> active# X1,
active# U71(X1, X2) -> active# X1,
active# U82(X1, X2, X3) -> active# X1,
active# U81(X1, X2, X3) -> active# X1,
active# fst X -> active# X,
active# natsFrom X -> active# X,
active# s X -> active# X,
active# sel(X1, X2) -> active# X1,
active# sel(X1, X2) -> active# X2,
active# tail X -> active# X,
active# take(X1, X2) -> active# X1,
active# take(X1, X2) -> active# X2}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (3):
Strict:
{ take#(X1, mark X2) -> take#(X1, X2),
take#(mark X1, X2) -> take#(X1, X2),
take#(ok X1, ok X2) -> take#(X1, X2)}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (2):
Strict:
{tail# mark X -> tail# X,
tail# ok X -> tail# X}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (3):
Strict:
{ sel#(X1, mark X2) -> sel#(X1, X2),
sel#(mark X1, X2) -> sel#(X1, X2),
sel#(ok X1, ok X2) -> sel#(X1, X2)}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (2):
Strict:
{s# mark X -> s# X,
s# ok X -> s# X}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (2):
Strict:
{natsFrom# mark X -> natsFrom# X,
natsFrom# ok X -> natsFrom# X}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (2):
Strict:
{fst# mark X -> fst# X,
fst# ok X -> fst# X}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (2):
Strict:
{ U71#(mark X1, X2) -> U71#(X1, X2),
U71#(ok X1, ok X2) -> U71#(X1, X2)}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (2):
Strict:
{ U72#(mark X1, X2) -> U72#(X1, X2),
U72#(ok X1, ok X2) -> U72#(X1, X2)}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (2):
Strict:
{ cons#(mark X1, X2) -> cons#(X1, X2),
cons#(ok X1, ok X2) -> cons#(X1, X2)}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (2):
Strict:
{ U64#(mark X1, X2) -> U64#(X1, X2),
U64#(ok X1, ok X2) -> U64#(X1, X2)}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (2):
Strict:
{ U63#(mark X1, X2, X3, X4) -> U63#(X1, X2, X3, X4),
U63#(ok X1, ok X2, ok X3, ok X4) -> U63#(X1, X2, X3, X4)}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (2):
Strict:
{ U62#(mark X1, X2, X3, X4) -> U62#(X1, X2, X3, X4),
U62#(ok X1, ok X2, ok X3, ok X4) -> U62#(X1, X2, X3, X4)}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (2):
Strict:
{ U52#(mark X1, X2) -> U52#(X1, X2),
U52#(ok X1, ok X2) -> U52#(X1, X2)}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (3):
Strict:
{ afterNth#(X1, mark X2) -> afterNth#(X1, X2),
afterNth#(mark X1, X2) -> afterNth#(X1, X2),
afterNth#(ok X1, ok X2) -> afterNth#(X1, X2)}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (2):
Strict:
{head# mark X -> head# X,
head# ok X -> head# X}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (2):
Strict:
{ U31#(mark X1, X2) -> U31#(X1, X2),
U31#(ok X1, ok X2) -> U31#(X1, X2)}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (2):
Strict:
{ U32#(mark X1, X2) -> U32#(X1, X2),
U32#(ok X1, ok X2) -> U32#(X1, X2)}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (2):
Strict:
{ U21#(mark X1, X2) -> U21#(X1, X2),
U21#(ok X1, ok X2) -> U21#(X1, X2)}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (2):
Strict:
{ U22#(mark X1, X2) -> U22#(X1, X2),
U22#(ok X1, ok X2) -> U22#(X1, X2)}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (3):
Strict:
{ pair#(X1, mark X2) -> pair#(X1, X2),
pair#(mark X1, X2) -> pair#(X1, X2),
pair#(ok X1, ok X2) -> pair#(X1, X2)}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (2):
Strict:
{ U61#(mark X1, X2, X3, X4) -> U61#(X1, X2, X3, X4),
U61#(ok X1, ok X2, ok X3, ok X4) -> U61#(X1, X2, X3, X4)}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (2):
Strict:
{ U51#(mark X1, X2) -> U51#(X1, X2),
U51#(ok X1, ok X2) -> U51#(X1, X2)}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (3):
Strict:
{ splitAt#(X1, mark X2) -> splitAt#(X1, X2),
splitAt#(mark X1, X2) -> splitAt#(X1, X2),
splitAt#(ok X1, ok X2) -> splitAt#(X1, X2)}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (2):
Strict:
{snd# mark X -> snd# X,
snd# ok X -> snd# X}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (2):
Strict:
{ U81#(mark X1, X2, X3) -> U81#(X1, X2, X3),
U81#(ok X1, ok X2, ok X3) -> U81#(X1, X2, X3)}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (2):
Strict:
{ U82#(mark X1, X2, X3) -> U82#(X1, X2, X3),
U82#(ok X1, ok X2, ok X3) -> U82#(X1, X2, X3)}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (2):
Strict:
{ U41#(mark X1, X2, X3) -> U41#(X1, X2, X3),
U41#(ok X1, ok X2, ok X3) -> U41#(X1, X2, X3)}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (2):
Strict:
{ U42#(mark X1, X2, X3) -> U42#(X1, X2, X3),
U42#(ok X1, ok X2, ok X3) -> U42#(X1, X2, X3)}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (2):
Strict:
{ U11#(mark X1, X2, X3) -> U11#(X1, X2, X3),
U11#(ok X1, ok X2, ok X3) -> U11#(X1, X2, X3)}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open
SCC (2):
Strict:
{ U12#(mark X1, X2, X3) -> U12#(X1, X2, X3),
U12#(ok X1, ok X2, ok X3) -> U12#(X1, X2, X3)}
Weak:
{ U12(mark X1, X2, X3) -> mark U12(X1, X2, X3),
U12(ok X1, ok X2, ok X3) -> ok U12(X1, X2, X3),
active U12(X1, X2, X3) -> U12(active X1, X2, X3),
active U12(tt(), N, XS) -> mark snd splitAt(N, XS),
active U11(X1, X2, X3) -> U11(active X1, X2, X3),
active U11(tt(), N, XS) -> mark U12(tt(), N, XS),
active snd X -> snd active X,
active snd pair(X, Y) -> mark U51(tt(), Y),
active splitAt(X1, X2) -> splitAt(X1, active X2),
active splitAt(X1, X2) -> splitAt(active X1, X2),
active splitAt(s N, cons(X, XS)) -> mark U61(tt(), N, X, XS),
active splitAt(0(), XS) -> mark pair(nil(), XS),
active U22(X1, X2) -> U22(active X1, X2),
active U22(tt(), X) -> mark X,
active U21(X1, X2) -> U21(active X1, X2),
active U21(tt(), X) -> mark U22(tt(), X),
active U32(X1, X2) -> U32(active X1, X2),
active U32(tt(), N) -> mark N,
active U31(X1, X2) -> U31(active X1, X2),
active U31(tt(), N) -> mark U32(tt(), N),
active U42(X1, X2, X3) -> U42(active X1, X2, X3),
active U42(tt(), N, XS) -> mark head afterNth(N, XS),
active U41(X1, X2, X3) -> U41(active X1, X2, X3),
active U41(tt(), N, XS) -> mark U42(tt(), N, XS),
active head X -> head active X,
active head cons(N, XS) -> mark U31(tt(), N),
active afterNth(N, XS) -> mark U11(tt(), N, XS),
active afterNth(X1, X2) -> afterNth(X1, active X2),
active afterNth(X1, X2) -> afterNth(active X1, X2),
active U52(X1, X2) -> U52(active X1, X2),
active U52(tt(), Y) -> mark Y,
active U51(X1, X2) -> U51(active X1, X2),
active U51(tt(), Y) -> mark U52(tt(), Y),
active U62(X1, X2, X3, X4) -> U62(active X1, X2, X3, X4),
active U62(tt(), N, X, XS) -> mark U63(tt(), N, X, XS),
active U61(X1, X2, X3, X4) -> U61(active X1, X2, X3, X4),
active U61(tt(), N, X, XS) -> mark U62(tt(), N, X, XS),
active U63(X1, X2, X3, X4) -> U63(active X1, X2, X3, X4),
active U63(tt(), N, X, XS) -> mark U64(splitAt(N, XS), X),
active U64(X1, X2) -> U64(active X1, X2),
active U64(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS),
active pair(X1, X2) -> pair(X1, active X2),
active pair(X1, X2) -> pair(active X1, X2),
active cons(X1, X2) -> cons(active X1, X2),
active U72(X1, X2) -> U72(active X1, X2),
active U72(tt(), XS) -> mark XS,
active U71(X1, X2) -> U71(active X1, X2),
active U71(tt(), XS) -> mark U72(tt(), XS),
active U82(X1, X2, X3) -> U82(active X1, X2, X3),
active U82(tt(), N, XS) -> mark fst splitAt(N, XS),
active U81(X1, X2, X3) -> U81(active X1, X2, X3),
active U81(tt(), N, XS) -> mark U82(tt(), N, XS),
active fst X -> fst active X,
active fst pair(X, Y) -> mark U21(tt(), X),
active natsFrom N -> mark cons(N, natsFrom s N),
active natsFrom X -> natsFrom active X,
active s X -> s active X,
active sel(N, XS) -> mark U41(tt(), N, XS),
active sel(X1, X2) -> sel(X1, active X2),
active sel(X1, X2) -> sel(active X1, X2),
active tail X -> tail active X,
active tail cons(N, XS) -> mark U71(tt(), XS),
active take(N, XS) -> mark U81(tt(), N, XS),
active take(X1, X2) -> take(X1, active X2),
active take(X1, X2) -> take(active X1, X2),
U11(mark X1, X2, X3) -> mark U11(X1, X2, X3),
U11(ok X1, ok X2, ok X3) -> ok U11(X1, X2, X3),
snd mark X -> mark snd X,
snd ok X -> ok snd X,
splitAt(X1, mark X2) -> mark splitAt(X1, X2),
splitAt(mark X1, X2) -> mark splitAt(X1, X2),
splitAt(ok X1, ok X2) -> ok splitAt(X1, X2),
U22(mark X1, X2) -> mark U22(X1, X2),
U22(ok X1, ok X2) -> ok U22(X1, X2),
U21(mark X1, X2) -> mark U21(X1, X2),
U21(ok X1, ok X2) -> ok U21(X1, X2),
U32(mark X1, X2) -> mark U32(X1, X2),
U32(ok X1, ok X2) -> ok U32(X1, X2),
U31(mark X1, X2) -> mark U31(X1, X2),
U31(ok X1, ok X2) -> ok U31(X1, X2),
U42(mark X1, X2, X3) -> mark U42(X1, X2, X3),
U42(ok X1, ok X2, ok X3) -> ok U42(X1, X2, X3),
U41(mark X1, X2, X3) -> mark U41(X1, X2, X3),
U41(ok X1, ok X2, ok X3) -> ok U41(X1, X2, X3),
head mark X -> mark head X,
head ok X -> ok head X,
afterNth(X1, mark X2) -> mark afterNth(X1, X2),
afterNth(mark X1, X2) -> mark afterNth(X1, X2),
afterNth(ok X1, ok X2) -> ok afterNth(X1, X2),
U52(mark X1, X2) -> mark U52(X1, X2),
U52(ok X1, ok X2) -> ok U52(X1, X2),
U51(mark X1, X2) -> mark U51(X1, X2),
U51(ok X1, ok X2) -> ok U51(X1, X2),
U62(mark X1, X2, X3, X4) -> mark U62(X1, X2, X3, X4),
U62(ok X1, ok X2, ok X3, ok X4) -> ok U62(X1, X2, X3, X4),
U61(mark X1, X2, X3, X4) -> mark U61(X1, X2, X3, X4),
U61(ok X1, ok X2, ok X3, ok X4) -> ok U61(X1, X2, X3, X4),
U63(mark X1, X2, X3, X4) -> mark U63(X1, X2, X3, X4),
U63(ok X1, ok X2, ok X3, ok X4) -> ok U63(X1, X2, X3, X4),
U64(mark X1, X2) -> mark U64(X1, X2),
U64(ok X1, ok X2) -> ok U64(X1, X2),
pair(X1, mark X2) -> mark pair(X1, X2),
pair(mark X1, X2) -> mark pair(X1, X2),
pair(ok X1, ok X2) -> ok pair(X1, X2),
cons(mark X1, X2) -> mark cons(X1, X2),
cons(ok X1, ok X2) -> ok cons(X1, X2),
U72(mark X1, X2) -> mark U72(X1, X2),
U72(ok X1, ok X2) -> ok U72(X1, X2),
U71(mark X1, X2) -> mark U71(X1, X2),
U71(ok X1, ok X2) -> ok U71(X1, X2),
U82(mark X1, X2, X3) -> mark U82(X1, X2, X3),
U82(ok X1, ok X2, ok X3) -> ok U82(X1, X2, X3),
U81(mark X1, X2, X3) -> mark U81(X1, X2, X3),
U81(ok X1, ok X2, ok X3) -> ok U81(X1, X2, X3),
fst mark X -> mark fst X,
fst ok X -> ok fst X,
natsFrom mark X -> mark natsFrom X,
natsFrom ok X -> ok natsFrom X,
s mark X -> mark s X,
s ok X -> ok s X,
sel(X1, mark X2) -> mark sel(X1, X2),
sel(mark X1, X2) -> mark sel(X1, X2),
sel(ok X1, ok X2) -> ok sel(X1, X2),
tail mark X -> mark tail X,
tail ok X -> ok tail X,
take(X1, mark X2) -> mark take(X1, X2),
take(mark X1, X2) -> mark take(X1, X2),
take(ok X1, ok X2) -> ok take(X1, X2),
proper U12(X1, X2, X3) -> U12(proper X1, proper X2, proper X3),
proper tt() -> ok tt(),
proper U11(X1, X2, X3) -> U11(proper X1, proper X2, proper X3),
proper snd X -> snd proper X,
proper splitAt(X1, X2) -> splitAt(proper X1, proper X2),
proper U22(X1, X2) -> U22(proper X1, proper X2),
proper U21(X1, X2) -> U21(proper X1, proper X2),
proper U32(X1, X2) -> U32(proper X1, proper X2),
proper U31(X1, X2) -> U31(proper X1, proper X2),
proper U42(X1, X2, X3) -> U42(proper X1, proper X2, proper X3),
proper U41(X1, X2, X3) -> U41(proper X1, proper X2, proper X3),
proper head X -> head proper X,
proper afterNth(X1, X2) -> afterNth(proper X1, proper X2),
proper U52(X1, X2) -> U52(proper X1, proper X2),
proper U51(X1, X2) -> U51(proper X1, proper X2),
proper U62(X1, X2, X3, X4) -> U62(proper X1, proper X2, proper X3, proper X4),
proper U61(X1, X2, X3, X4) -> U61(proper X1, proper X2, proper X3, proper X4),
proper U63(X1, X2, X3, X4) -> U63(proper X1, proper X2, proper X3, proper X4),
proper U64(X1, X2) -> U64(proper X1, proper X2),
proper pair(X1, X2) -> pair(proper X1, proper X2),
proper cons(X1, X2) -> cons(proper X1, proper X2),
proper U72(X1, X2) -> U72(proper X1, proper X2),
proper U71(X1, X2) -> U71(proper X1, proper X2),
proper U82(X1, X2, X3) -> U82(proper X1, proper X2, proper X3),
proper U81(X1, X2, X3) -> U81(proper X1, proper X2, proper X3),
proper fst X -> fst proper X,
proper natsFrom X -> natsFrom proper X,
proper s X -> s proper X,
proper sel(X1, X2) -> sel(proper X1, proper X2),
proper nil() -> ok nil(),
proper 0() -> ok 0(),
proper tail X -> tail proper X,
proper take(X1, X2) -> take(proper X1, proper X2),
top mark X -> top proper X,
top ok X -> top active X}
Open