MAYBE Time: 2.385473 TRS: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} DP: DP: { mark# fst X -> mark# X, mark# fst X -> fst# mark X, mark# fst X -> active# fst mark X, mark# splitAt(X1, X2) -> mark# X1, mark# splitAt(X1, X2) -> mark# X2, mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2), mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), mark# U101(X1, X2, X3) -> mark# X1, mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3), mark# tt() -> active# tt(), mark# snd X -> mark# X, mark# snd X -> active# snd mark X, mark# snd X -> snd# mark X, mark# U11(X1, X2, X3) -> mark# X1, mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3), mark# U21(X1, X2) -> mark# X1, mark# U21(X1, X2) -> active# U21(mark X1, X2), mark# U21(X1, X2) -> U21#(mark X1, X2), mark# U31(X1, X2) -> mark# X1, mark# U31(X1, X2) -> active# U31(mark X1, X2), mark# U31(X1, X2) -> U31#(mark X1, X2), mark# cons(X1, X2) -> mark# X1, mark# cons(X1, X2) -> active# cons(mark X1, X2), mark# cons(X1, X2) -> cons#(mark X1, X2), mark# natsFrom X -> mark# X, mark# natsFrom X -> active# natsFrom mark X, mark# natsFrom X -> natsFrom# mark X, mark# s X -> mark# X, mark# s X -> active# s mark X, mark# s X -> s# mark X, mark# U41(X1, X2) -> mark# X1, mark# U41(X1, X2) -> active# U41(mark X1, X2), mark# U41(X1, X2) -> U41#(mark X1, X2), mark# head X -> mark# X, mark# head X -> active# head mark X, mark# head X -> head# mark X, mark# afterNth(X1, X2) -> mark# X1, mark# afterNth(X1, X2) -> mark# X2, mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2), mark# U51(X1, X2, X3) -> mark# X1, mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3), mark# U61(X1, X2) -> mark# X1, mark# U61(X1, X2) -> active# U61(mark X1, X2), mark# U61(X1, X2) -> U61#(mark X1, X2), mark# pair(X1, X2) -> mark# X1, mark# pair(X1, X2) -> mark# X2, mark# pair(X1, X2) -> active# pair(mark X1, mark X2), mark# pair(X1, X2) -> pair#(mark X1, mark X2), mark# nil() -> active# nil(), mark# U71(X1, X2) -> mark# X1, mark# U71(X1, X2) -> active# U71(mark X1, X2), mark# U71(X1, X2) -> U71#(mark X1, X2), mark# U82(X1, X2) -> mark# X1, mark# U82(X1, X2) -> active# U82(mark X1, X2), mark# U82(X1, X2) -> U82#(mark X1, X2), mark# U81(X1, X2, X3, X4) -> mark# X1, mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4), mark# U91(X1, X2) -> mark# X1, mark# U91(X1, X2) -> active# U91(mark X1, X2), mark# U91(X1, X2) -> U91#(mark X1, X2), mark# and(X1, X2) -> mark# X1, mark# and(X1, X2) -> active# and(mark X1, X2), mark# and(X1, X2) -> and#(mark X1, X2), mark# isNatural X -> active# isNatural X, mark# isLNat X -> active# isLNat X, mark# isPLNat X -> active# isPLNat X, mark# tail X -> mark# X, mark# tail X -> active# tail mark X, mark# tail X -> tail# mark X, mark# take(X1, X2) -> mark# X1, mark# take(X1, X2) -> mark# X2, mark# take(X1, X2) -> active# take(mark X1, mark X2), mark# take(X1, X2) -> take#(mark X1, mark X2), mark# 0() -> active# 0(), mark# sel(X1, X2) -> mark# X1, mark# sel(X1, X2) -> mark# X2, mark# sel(X1, X2) -> active# sel(mark X1, mark X2), mark# sel(X1, X2) -> sel#(mark X1, mark X2), fst# mark X -> fst# X, fst# active X -> fst# X, splitAt#(X1, mark X2) -> splitAt#(X1, X2), splitAt#(X1, active X2) -> splitAt#(X1, X2), splitAt#(mark X1, X2) -> splitAt#(X1, X2), splitAt#(active X1, X2) -> splitAt#(X1, X2), active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), active# fst pair(X, Y) -> U21#(and(isLNat X, isLNat Y), X), active# fst pair(X, Y) -> and#(isLNat X, isLNat Y), active# fst pair(X, Y) -> isLNat# X, active# fst pair(X, Y) -> isLNat# Y, active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active# splitAt(s N, cons(X, XS)) -> U81#(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active# splitAt(s N, cons(X, XS)) -> and#(isNatural N, and(isNatural X, isLNat XS)), active# splitAt(s N, cons(X, XS)) -> and#(isNatural X, isLNat XS), active# splitAt(s N, cons(X, XS)) -> isNatural# N, active# splitAt(s N, cons(X, XS)) -> isNatural# X, active# splitAt(s N, cons(X, XS)) -> isLNat# XS, active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), active# splitAt(0(), XS) -> U71#(isLNat XS, XS), active# splitAt(0(), XS) -> isLNat# XS, active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), active# U101(tt(), N, XS) -> fst# splitAt(N, XS), active# U101(tt(), N, XS) -> splitAt#(N, XS), active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), active# snd pair(X, Y) -> U61#(and(isLNat X, isLNat Y), Y), active# snd pair(X, Y) -> and#(isLNat X, isLNat Y), active# snd pair(X, Y) -> isLNat# X, active# snd pair(X, Y) -> isLNat# Y, active# U11(tt(), N, XS) -> mark# snd splitAt(N, XS), active# U11(tt(), N, XS) -> splitAt#(N, XS), active# U11(tt(), N, XS) -> snd# splitAt(N, XS), active# U21(tt(), X) -> mark# X, active# U31(tt(), N) -> mark# N, active# natsFrom N -> mark# U41(isNatural N, N), active# natsFrom N -> U41#(isNatural N, N), active# natsFrom N -> isNatural# N, active# U41(tt(), N) -> mark# cons(N, natsFrom s N), active# U41(tt(), N) -> cons#(N, natsFrom s N), active# U41(tt(), N) -> natsFrom# s N, active# U41(tt(), N) -> s# N, active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), active# head cons(N, XS) -> U31#(and(isNatural N, isLNat XS), N), active# head cons(N, XS) -> and#(isNatural N, isLNat XS), active# head cons(N, XS) -> isNatural# N, active# head cons(N, XS) -> isLNat# XS, active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), active# afterNth(N, XS) -> U11#(and(isNatural N, isLNat XS), N, XS), active# afterNth(N, XS) -> and#(isNatural N, isLNat XS), active# afterNth(N, XS) -> isNatural# N, active# afterNth(N, XS) -> isLNat# XS, active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), active# U51(tt(), N, XS) -> head# afterNth(N, XS), active# U51(tt(), N, XS) -> afterNth#(N, XS), active# U61(tt(), Y) -> mark# Y, active# U71(tt(), XS) -> mark# pair(nil(), XS), active# U71(tt(), XS) -> pair#(nil(), XS), active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), active# U82(pair(YS, ZS), X) -> cons#(X, YS), active# U82(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS), active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), active# U81(tt(), N, X, XS) -> splitAt#(N, XS), active# U81(tt(), N, X, XS) -> U82#(splitAt(N, XS), X), active# U91(tt(), XS) -> mark# XS, active# and(tt(), X) -> mark# X, active# isNatural s V1 -> mark# isNatural V1, active# isNatural s V1 -> isNatural# V1, active# isNatural head V1 -> mark# isLNat V1, active# isNatural head V1 -> isLNat# V1, active# isNatural 0() -> mark# tt(), active# isNatural sel(V1, V2) -> mark# and(isNatural V1, isLNat V2), active# isNatural sel(V1, V2) -> and#(isNatural V1, isLNat V2), active# isNatural sel(V1, V2) -> isNatural# V1, active# isNatural sel(V1, V2) -> isLNat# V2, active# isLNat fst V1 -> mark# isPLNat V1, active# isLNat fst V1 -> isPLNat# V1, active# isLNat snd V1 -> mark# isPLNat V1, active# isLNat snd V1 -> isPLNat# V1, active# isLNat cons(V1, V2) -> mark# and(isNatural V1, isLNat V2), active# isLNat cons(V1, V2) -> and#(isNatural V1, isLNat V2), active# isLNat cons(V1, V2) -> isNatural# V1, active# isLNat cons(V1, V2) -> isLNat# V2, active# isLNat natsFrom V1 -> mark# isNatural V1, active# isLNat natsFrom V1 -> isNatural# V1, active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), active# isLNat afterNth(V1, V2) -> and#(isNatural V1, isLNat V2), active# isLNat afterNth(V1, V2) -> isNatural# V1, active# isLNat afterNth(V1, V2) -> isLNat# V2, active# isLNat nil() -> mark# tt(), active# isLNat tail V1 -> mark# isLNat V1, active# isLNat tail V1 -> isLNat# V1, active# isLNat take(V1, V2) -> mark# and(isNatural V1, isLNat V2), active# isLNat take(V1, V2) -> and#(isNatural V1, isLNat V2), active# isLNat take(V1, V2) -> isNatural# V1, active# isLNat take(V1, V2) -> isLNat# V2, active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), active# isPLNat splitAt(V1, V2) -> and#(isNatural V1, isLNat V2), active# isPLNat splitAt(V1, V2) -> isNatural# V1, active# isPLNat splitAt(V1, V2) -> isLNat# V2, active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), active# isPLNat pair(V1, V2) -> and#(isLNat V1, isLNat V2), active# isPLNat pair(V1, V2) -> isLNat# V1, active# isPLNat pair(V1, V2) -> isLNat# V2, active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), active# tail cons(N, XS) -> U91#(and(isNatural N, isLNat XS), XS), active# tail cons(N, XS) -> and#(isNatural N, isLNat XS), active# tail cons(N, XS) -> isNatural# N, active# tail cons(N, XS) -> isLNat# XS, active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), active# take(N, XS) -> U101#(and(isNatural N, isLNat XS), N, XS), active# take(N, XS) -> and#(isNatural N, isLNat XS), active# take(N, XS) -> isNatural# N, active# take(N, XS) -> isLNat# XS, active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), active# sel(N, XS) -> U51#(and(isNatural N, isLNat XS), N, XS), active# sel(N, XS) -> and#(isNatural N, isLNat XS), active# sel(N, XS) -> isNatural# N, active# sel(N, XS) -> isLNat# XS, U101#(X1, X2, mark X3) -> U101#(X1, X2, X3), U101#(X1, X2, active X3) -> U101#(X1, X2, X3), U101#(X1, mark X2, X3) -> U101#(X1, X2, X3), U101#(X1, active X2, X3) -> U101#(X1, X2, X3), U101#(mark X1, X2, X3) -> U101#(X1, X2, X3), U101#(active X1, X2, X3) -> U101#(X1, X2, X3), snd# mark X -> snd# X, snd# active X -> snd# X, U11#(X1, X2, mark X3) -> U11#(X1, X2, X3), U11#(X1, X2, active X3) -> U11#(X1, X2, X3), U11#(X1, mark X2, X3) -> U11#(X1, X2, X3), U11#(X1, active X2, X3) -> U11#(X1, X2, X3), U11#(mark X1, X2, X3) -> U11#(X1, X2, X3), U11#(active X1, X2, X3) -> U11#(X1, X2, X3), U21#(X1, mark X2) -> U21#(X1, X2), U21#(X1, active X2) -> U21#(X1, X2), U21#(mark X1, X2) -> U21#(X1, X2), U21#(active X1, X2) -> U21#(X1, X2), U31#(X1, mark X2) -> U31#(X1, X2), U31#(X1, active X2) -> U31#(X1, X2), U31#(mark X1, X2) -> U31#(X1, X2), U31#(active X1, X2) -> U31#(X1, X2), cons#(X1, mark X2) -> cons#(X1, X2), cons#(X1, active X2) -> cons#(X1, X2), cons#(mark X1, X2) -> cons#(X1, X2), cons#(active X1, X2) -> cons#(X1, X2), natsFrom# mark X -> natsFrom# X, natsFrom# active X -> natsFrom# X, s# mark X -> s# X, s# active X -> s# X, U41#(X1, mark X2) -> U41#(X1, X2), U41#(X1, active X2) -> U41#(X1, X2), U41#(mark X1, X2) -> U41#(X1, X2), U41#(active X1, X2) -> U41#(X1, X2), head# mark X -> head# X, head# active X -> head# X, afterNth#(X1, mark X2) -> afterNth#(X1, X2), afterNth#(X1, active X2) -> afterNth#(X1, X2), afterNth#(mark X1, X2) -> afterNth#(X1, X2), afterNth#(active X1, X2) -> afterNth#(X1, X2), U51#(X1, X2, mark X3) -> U51#(X1, X2, X3), U51#(X1, X2, active X3) -> U51#(X1, X2, X3), U51#(X1, mark X2, X3) -> U51#(X1, X2, X3), U51#(X1, active X2, X3) -> U51#(X1, X2, X3), U51#(mark X1, X2, X3) -> U51#(X1, X2, X3), U51#(active X1, X2, X3) -> U51#(X1, X2, X3), U61#(X1, mark X2) -> U61#(X1, X2), U61#(X1, active X2) -> U61#(X1, X2), U61#(mark X1, X2) -> U61#(X1, X2), U61#(active X1, X2) -> U61#(X1, X2), pair#(X1, mark X2) -> pair#(X1, X2), pair#(X1, active X2) -> pair#(X1, X2), pair#(mark X1, X2) -> pair#(X1, X2), pair#(active X1, X2) -> pair#(X1, X2), U71#(X1, mark X2) -> U71#(X1, X2), U71#(X1, active X2) -> U71#(X1, X2), U71#(mark X1, X2) -> U71#(X1, X2), U71#(active X1, X2) -> U71#(X1, X2), U82#(X1, mark X2) -> U82#(X1, X2), U82#(X1, active X2) -> U82#(X1, X2), U82#(mark X1, X2) -> U82#(X1, X2), U82#(active X1, X2) -> U82#(X1, X2), U81#(X1, X2, X3, mark X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, X3, active X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, mark X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, active X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, mark X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, active X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(mark X1, X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(active X1, X2, X3, X4) -> U81#(X1, X2, X3, X4), U91#(X1, mark X2) -> U91#(X1, X2), U91#(X1, active X2) -> U91#(X1, X2), U91#(mark X1, X2) -> U91#(X1, X2), U91#(active X1, X2) -> U91#(X1, X2), and#(X1, mark X2) -> and#(X1, X2), and#(X1, active X2) -> and#(X1, X2), and#(mark X1, X2) -> and#(X1, X2), and#(active X1, X2) -> and#(X1, X2), isNatural# mark X -> isNatural# X, isNatural# active X -> isNatural# X, isLNat# mark X -> isLNat# X, isLNat# active X -> isLNat# X, isPLNat# mark X -> isPLNat# X, isPLNat# active X -> isPLNat# X, tail# mark X -> tail# X, tail# active X -> tail# X, take#(X1, mark X2) -> take#(X1, X2), take#(X1, active X2) -> take#(X1, X2), take#(mark X1, X2) -> take#(X1, X2), take#(active X1, X2) -> take#(X1, X2), sel#(X1, mark X2) -> sel#(X1, X2), sel#(X1, active X2) -> sel#(X1, X2), sel#(mark X1, X2) -> sel#(X1, X2), sel#(active X1, X2) -> sel#(X1, X2) } TRS: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} EDG: { (active# isLNat cons(V1, V2) -> isLNat# V2, isLNat# active X -> isLNat# X) (active# isLNat cons(V1, V2) -> isLNat# V2, isLNat# mark X -> isLNat# X) (active# isLNat take(V1, V2) -> isLNat# V2, isLNat# active X -> isLNat# X) (active# isLNat take(V1, V2) -> isLNat# V2, isLNat# mark X -> isLNat# X) (active# isPLNat pair(V1, V2) -> isLNat# V2, isLNat# active X -> isLNat# X) (active# isPLNat pair(V1, V2) -> isLNat# V2, isLNat# mark X -> isLNat# X) (active# U81(tt(), N, X, XS) -> U82#(splitAt(N, XS), X), U82#(active X1, X2) -> U82#(X1, X2)) (active# U81(tt(), N, X, XS) -> U82#(splitAt(N, XS), X), U82#(mark X1, X2) -> U82#(X1, X2)) (active# U81(tt(), N, X, XS) -> U82#(splitAt(N, XS), X), U82#(X1, active X2) -> U82#(X1, X2)) (active# U81(tt(), N, X, XS) -> U82#(splitAt(N, XS), X), U82#(X1, mark X2) -> U82#(X1, X2)) (active# splitAt(0(), XS) -> isLNat# XS, isLNat# active X -> isLNat# X) (active# splitAt(0(), XS) -> isLNat# XS, isLNat# mark X -> isLNat# X) (active# afterNth(N, XS) -> isLNat# XS, isLNat# active X -> isLNat# X) (active# afterNth(N, XS) -> isLNat# XS, isLNat# mark X -> isLNat# X) (active# tail cons(N, XS) -> isLNat# XS, isLNat# active X -> isLNat# X) (active# tail cons(N, XS) -> isLNat# XS, isLNat# mark X -> isLNat# X) (active# sel(N, XS) -> isLNat# XS, isLNat# active X -> isLNat# X) (active# sel(N, XS) -> isLNat# XS, isLNat# mark X -> isLNat# X) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# sel(N, XS) -> isLNat# XS) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# sel(N, XS) -> isNatural# N) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# sel(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# sel(N, XS) -> U51#(and(isNatural N, isLNat XS), N, XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# take(N, XS) -> isLNat# XS) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# take(N, XS) -> isNatural# N) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# take(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# take(N, XS) -> U101#(and(isNatural N, isLNat XS), N, XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# tail cons(N, XS) -> isLNat# XS) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# tail cons(N, XS) -> isNatural# N) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# tail cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# tail cons(N, XS) -> U91#(and(isNatural N, isLNat XS), XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isPLNat pair(V1, V2) -> isLNat# V2) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isPLNat pair(V1, V2) -> isLNat# V1) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isPLNat pair(V1, V2) -> and#(isLNat V1, isLNat V2)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isPLNat splitAt(V1, V2) -> isLNat# V2) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isPLNat splitAt(V1, V2) -> isNatural# V1) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isPLNat splitAt(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isLNat take(V1, V2) -> isLNat# V2) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isLNat take(V1, V2) -> isNatural# V1) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isLNat take(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isLNat take(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isLNat tail V1 -> isLNat# V1) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isLNat tail V1 -> mark# isLNat V1) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isLNat nil() -> mark# tt()) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isLNat afterNth(V1, V2) -> isLNat# V2) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isLNat afterNth(V1, V2) -> isNatural# V1) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isLNat afterNth(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isLNat natsFrom V1 -> isNatural# V1) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isLNat natsFrom V1 -> mark# isNatural V1) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isLNat cons(V1, V2) -> isLNat# V2) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isLNat cons(V1, V2) -> isNatural# V1) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isLNat cons(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isLNat cons(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isLNat snd V1 -> isPLNat# V1) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isLNat snd V1 -> mark# isPLNat V1) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isLNat fst V1 -> isPLNat# V1) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isLNat fst V1 -> mark# isPLNat V1) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isNatural sel(V1, V2) -> isLNat# V2) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isNatural sel(V1, V2) -> isNatural# V1) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isNatural sel(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isNatural sel(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isNatural 0() -> mark# tt()) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isNatural head V1 -> isLNat# V1) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isNatural head V1 -> mark# isLNat V1) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isNatural s V1 -> isNatural# V1) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# isNatural s V1 -> mark# isNatural V1) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# and(tt(), X) -> mark# X) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# U91(tt(), XS) -> mark# XS) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# U81(tt(), N, X, XS) -> U82#(splitAt(N, XS), X)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# U81(tt(), N, X, XS) -> splitAt#(N, XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# U82(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# U82(pair(YS, ZS), X) -> cons#(X, YS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# U71(tt(), XS) -> pair#(nil(), XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# U71(tt(), XS) -> mark# pair(nil(), XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# U61(tt(), Y) -> mark# Y) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# U51(tt(), N, XS) -> afterNth#(N, XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# U51(tt(), N, XS) -> head# afterNth(N, XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# U51(tt(), N, XS) -> mark# head afterNth(N, XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# afterNth(N, XS) -> isLNat# XS) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# afterNth(N, XS) -> isNatural# N) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# afterNth(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# afterNth(N, XS) -> U11#(and(isNatural N, isLNat XS), N, XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# head cons(N, XS) -> isLNat# XS) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# head cons(N, XS) -> isNatural# N) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# head cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# head cons(N, XS) -> U31#(and(isNatural N, isLNat XS), N)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# U41(tt(), N) -> s# N) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# U41(tt(), N) -> natsFrom# s N) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# U41(tt(), N) -> cons#(N, natsFrom s N)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# U41(tt(), N) -> mark# cons(N, natsFrom s N)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# natsFrom N -> isNatural# N) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# natsFrom N -> U41#(isNatural N, N)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# natsFrom N -> mark# U41(isNatural N, N)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# U31(tt(), N) -> mark# N) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# U21(tt(), X) -> mark# X) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# U11(tt(), N, XS) -> snd# splitAt(N, XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# U11(tt(), N, XS) -> splitAt#(N, XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# U11(tt(), N, XS) -> mark# snd splitAt(N, XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# snd pair(X, Y) -> isLNat# Y) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# snd pair(X, Y) -> isLNat# X) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# snd pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# snd pair(X, Y) -> U61#(and(isLNat X, isLNat Y), Y)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# U101(tt(), N, XS) -> splitAt#(N, XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# U101(tt(), N, XS) -> fst# splitAt(N, XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# splitAt(0(), XS) -> isLNat# XS) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# splitAt(0(), XS) -> U71#(isLNat XS, XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# splitAt(s N, cons(X, XS)) -> isLNat# XS) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# splitAt(s N, cons(X, XS)) -> isNatural# X) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# splitAt(s N, cons(X, XS)) -> isNatural# N) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# splitAt(s N, cons(X, XS)) -> and#(isNatural X, isLNat XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# splitAt(s N, cons(X, XS)) -> and#(isNatural N, and(isNatural X, isLNat XS))) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# splitAt(s N, cons(X, XS)) -> U81#(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# fst pair(X, Y) -> isLNat# Y) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# fst pair(X, Y) -> isLNat# X) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# fst pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# fst pair(X, Y) -> U21#(and(isLNat X, isLNat Y), X)) (mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# sel(N, XS) -> isLNat# XS) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# sel(N, XS) -> isNatural# N) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# sel(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# sel(N, XS) -> U51#(and(isNatural N, isLNat XS), N, XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# take(N, XS) -> isLNat# XS) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# take(N, XS) -> isNatural# N) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# take(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# take(N, XS) -> U101#(and(isNatural N, isLNat XS), N, XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# tail cons(N, XS) -> isLNat# XS) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# tail cons(N, XS) -> isNatural# N) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# tail cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# tail cons(N, XS) -> U91#(and(isNatural N, isLNat XS), XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isPLNat pair(V1, V2) -> isLNat# V2) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isPLNat pair(V1, V2) -> isLNat# V1) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isPLNat pair(V1, V2) -> and#(isLNat V1, isLNat V2)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isPLNat splitAt(V1, V2) -> isLNat# V2) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isPLNat splitAt(V1, V2) -> isNatural# V1) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isPLNat splitAt(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isLNat take(V1, V2) -> isLNat# V2) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isLNat take(V1, V2) -> isNatural# V1) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isLNat take(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isLNat take(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isLNat tail V1 -> isLNat# V1) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isLNat tail V1 -> mark# isLNat V1) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isLNat nil() -> mark# tt()) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isLNat afterNth(V1, V2) -> isLNat# V2) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isLNat afterNth(V1, V2) -> isNatural# V1) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isLNat afterNth(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isLNat natsFrom V1 -> isNatural# V1) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isLNat natsFrom V1 -> mark# isNatural V1) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isLNat cons(V1, V2) -> isLNat# V2) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isLNat cons(V1, V2) -> isNatural# V1) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isLNat cons(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isLNat cons(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isLNat snd V1 -> isPLNat# V1) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isLNat snd V1 -> mark# isPLNat V1) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isLNat fst V1 -> isPLNat# V1) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isLNat fst V1 -> mark# isPLNat V1) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isNatural sel(V1, V2) -> isLNat# V2) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isNatural sel(V1, V2) -> isNatural# V1) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isNatural sel(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isNatural sel(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isNatural 0() -> mark# tt()) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isNatural head V1 -> isLNat# V1) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isNatural head V1 -> mark# isLNat V1) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isNatural s V1 -> isNatural# V1) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# isNatural s V1 -> mark# isNatural V1) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# and(tt(), X) -> mark# X) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# U91(tt(), XS) -> mark# XS) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# U81(tt(), N, X, XS) -> U82#(splitAt(N, XS), X)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# U81(tt(), N, X, XS) -> splitAt#(N, XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# U82(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# U82(pair(YS, ZS), X) -> cons#(X, YS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# U71(tt(), XS) -> pair#(nil(), XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# U71(tt(), XS) -> mark# pair(nil(), XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# U61(tt(), Y) -> mark# Y) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# U51(tt(), N, XS) -> afterNth#(N, XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# U51(tt(), N, XS) -> head# afterNth(N, XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# U51(tt(), N, XS) -> mark# head afterNth(N, XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# afterNth(N, XS) -> isLNat# XS) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# afterNth(N, XS) -> isNatural# N) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# afterNth(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# afterNth(N, XS) -> U11#(and(isNatural N, isLNat XS), N, XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# head cons(N, XS) -> isLNat# XS) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# head cons(N, XS) -> isNatural# N) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# head cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# head cons(N, XS) -> U31#(and(isNatural N, isLNat XS), N)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# U41(tt(), N) -> s# N) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# U41(tt(), N) -> natsFrom# s N) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# U41(tt(), N) -> cons#(N, natsFrom s N)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# U41(tt(), N) -> mark# cons(N, natsFrom s N)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# natsFrom N -> isNatural# N) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# natsFrom N -> U41#(isNatural N, N)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# natsFrom N -> mark# U41(isNatural N, N)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# U31(tt(), N) -> mark# N) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# U21(tt(), X) -> mark# X) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# U11(tt(), N, XS) -> snd# splitAt(N, XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# U11(tt(), N, XS) -> splitAt#(N, XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# U11(tt(), N, XS) -> mark# snd splitAt(N, XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# snd pair(X, Y) -> isLNat# Y) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# snd pair(X, Y) -> isLNat# X) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# snd pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# snd pair(X, Y) -> U61#(and(isLNat X, isLNat Y), Y)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# U101(tt(), N, XS) -> splitAt#(N, XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# U101(tt(), N, XS) -> fst# splitAt(N, XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# splitAt(0(), XS) -> isLNat# XS) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# splitAt(0(), XS) -> U71#(isLNat XS, XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# splitAt(s N, cons(X, XS)) -> isLNat# XS) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# splitAt(s N, cons(X, XS)) -> isNatural# X) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# splitAt(s N, cons(X, XS)) -> isNatural# N) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# splitAt(s N, cons(X, XS)) -> and#(isNatural X, isLNat XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# splitAt(s N, cons(X, XS)) -> and#(isNatural N, and(isNatural X, isLNat XS))) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# splitAt(s N, cons(X, XS)) -> U81#(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# fst pair(X, Y) -> isLNat# Y) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# fst pair(X, Y) -> isLNat# X) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# fst pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# fst pair(X, Y) -> U21#(and(isLNat X, isLNat Y), X)) (mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# sel(X1, X2) -> mark# X2) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# sel(X1, X2) -> mark# X1) 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(active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# tail X -> mark# X) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# isPLNat X -> active# isPLNat X) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# isLNat X -> active# isLNat X) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# isNatural X -> active# isNatural X) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# and(X1, X2) -> and#(mark X1, X2)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# and(X1, X2) -> active# and(mark X1, X2)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# and(X1, X2) -> mark# X1) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U91(X1, X2) -> U91#(mark X1, X2)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U91(X1, X2) -> active# U91(mark X1, X2)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U91(X1, X2) -> mark# X1) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U81(X1, X2, X3, X4) -> mark# X1) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U82(X1, X2) -> U82#(mark X1, X2)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U82(X1, X2) -> active# U82(mark X1, X2)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U82(X1, X2) -> mark# X1) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U71(X1, X2) -> U71#(mark X1, X2)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U71(X1, X2) -> active# U71(mark X1, X2)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U71(X1, X2) -> mark# X1) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# nil() -> active# nil()) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, 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U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U51(X1, X2, X3) -> mark# X1) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# afterNth(X1, X2) -> mark# X2) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# afterNth(X1, X2) -> mark# X1) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# head X -> head# mark X) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# head X -> active# head mark X) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# head X -> mark# X) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U41(X1, X2) -> U41#(mark X1, X2)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U41(X1, X2) -> active# U41(mark X1, X2)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U41(X1, X2) -> mark# X1) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# s X -> s# mark X) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# s X -> active# s mark X) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# s X -> mark# X) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# natsFrom X -> natsFrom# mark X) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# natsFrom X -> active# natsFrom mark X) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# natsFrom X -> mark# X) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# cons(X1, X2) -> cons#(mark X1, X2)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# cons(X1, X2) -> active# cons(mark X1, X2)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# cons(X1, X2) -> mark# X1) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U31(X1, X2) -> U31#(mark X1, X2)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U31(X1, X2) -> active# U31(mark X1, X2)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U31(X1, X2) -> mark# X1) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U21(X1, X2) -> U21#(mark X1, X2)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U21(X1, X2) -> active# U21(mark X1, X2)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U21(X1, X2) -> mark# X1) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U11(X1, X2, X3) -> mark# X1) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# snd X -> snd# mark X) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# snd X -> active# snd mark X) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# snd X -> mark# X) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# tt() -> active# tt()) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# U101(X1, X2, X3) -> mark# X1) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# splitAt(X1, X2) -> mark# X2) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# splitAt(X1, X2) -> mark# X1) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# fst X -> active# fst mark X) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# fst X -> fst# mark X) (active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), mark# fst X -> mark# X) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# sel(X1, X2) -> mark# X2) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# sel(X1, X2) -> mark# X1) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# 0() -> active# 0()) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# take(X1, X2) -> take#(mark X1, mark X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# take(X1, X2) -> active# take(mark X1, mark X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# take(X1, X2) -> mark# X2) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# take(X1, X2) -> mark# X1) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# tail X -> tail# mark X) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# tail X -> active# tail mark X) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# tail X -> mark# X) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# isPLNat X -> active# isPLNat X) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# isLNat X -> active# isLNat X) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# isNatural X -> active# isNatural X) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# and(X1, X2) -> and#(mark X1, X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# and(X1, X2) -> active# and(mark X1, X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# and(X1, X2) -> mark# X1) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U91(X1, X2) -> U91#(mark X1, X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U91(X1, X2) -> active# U91(mark X1, X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U91(X1, X2) -> mark# X1) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U81(X1, X2, X3, X4) -> mark# X1) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U82(X1, X2) -> U82#(mark X1, X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U82(X1, X2) -> active# U82(mark X1, X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U82(X1, X2) -> mark# X1) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U71(X1, X2) -> U71#(mark X1, X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U71(X1, X2) -> active# U71(mark X1, X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U71(X1, X2) -> mark# X1) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# nil() -> active# nil()) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# pair(X1, X2) -> mark# X2) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# pair(X1, X2) -> mark# X1) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U61(X1, X2) -> U61#(mark X1, X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U61(X1, X2) -> active# U61(mark X1, X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U61(X1, X2) -> mark# X1) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U51(X1, X2, X3) -> mark# X1) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# afterNth(X1, X2) -> mark# X2) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# afterNth(X1, X2) -> mark# X1) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# head X -> head# mark X) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# head X -> active# head mark X) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# head X -> mark# X) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U41(X1, X2) -> U41#(mark X1, X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U41(X1, X2) -> active# U41(mark X1, X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U41(X1, X2) -> mark# X1) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# s X -> s# mark X) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# s X -> active# s mark X) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# s X -> mark# X) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# natsFrom X -> natsFrom# mark X) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# natsFrom X -> active# natsFrom mark X) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# natsFrom X -> mark# X) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# cons(X1, X2) -> cons#(mark X1, X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# cons(X1, X2) -> active# cons(mark X1, X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# cons(X1, X2) -> mark# X1) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U31(X1, X2) -> U31#(mark X1, X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U31(X1, X2) -> active# U31(mark X1, X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U31(X1, X2) -> mark# X1) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U21(X1, X2) -> U21#(mark X1, X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U21(X1, X2) -> active# U21(mark X1, X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U21(X1, X2) -> mark# X1) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U11(X1, X2, X3) -> mark# X1) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# snd X -> snd# mark X) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# snd X -> active# snd mark X) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# snd X -> mark# X) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# tt() -> active# tt()) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# U101(X1, X2, X3) -> mark# X1) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# splitAt(X1, X2) -> mark# X2) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# splitAt(X1, X2) -> mark# X1) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# fst X -> active# fst mark X) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# fst X -> fst# mark X) (active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), mark# fst X -> mark# X) (active# natsFrom N -> U41#(isNatural N, N), U41#(active X1, X2) -> U41#(X1, X2)) (active# natsFrom N -> U41#(isNatural N, N), U41#(mark X1, X2) -> U41#(X1, X2)) (active# natsFrom N -> U41#(isNatural N, N), U41#(X1, active X2) -> U41#(X1, X2)) (active# natsFrom N -> U41#(isNatural N, N), U41#(X1, mark X2) -> U41#(X1, X2)) (mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2), splitAt#(active X1, X2) -> splitAt#(X1, X2)) (mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2), splitAt#(mark X1, X2) -> splitAt#(X1, X2)) (mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2), splitAt#(X1, active X2) -> splitAt#(X1, X2)) (mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2), splitAt#(X1, mark X2) -> splitAt#(X1, X2)) (mark# pair(X1, X2) -> pair#(mark X1, mark X2), pair#(active X1, X2) -> pair#(X1, X2)) (mark# pair(X1, X2) -> pair#(mark X1, mark X2), pair#(mark X1, X2) -> pair#(X1, X2)) (mark# pair(X1, X2) -> pair#(mark X1, mark X2), pair#(X1, active X2) -> pair#(X1, X2)) (mark# pair(X1, X2) -> pair#(mark X1, mark X2), pair#(X1, mark X2) -> pair#(X1, X2)) (mark# sel(X1, X2) -> sel#(mark X1, mark X2), sel#(active X1, X2) -> sel#(X1, X2)) (mark# sel(X1, X2) -> sel#(mark X1, mark X2), sel#(mark X1, X2) -> sel#(X1, X2)) (mark# sel(X1, X2) -> sel#(mark X1, mark X2), sel#(X1, active X2) -> sel#(X1, X2)) (mark# sel(X1, X2) -> sel#(mark X1, mark X2), sel#(X1, mark X2) -> sel#(X1, X2)) (active# splitAt(s N, cons(X, XS)) -> and#(isNatural X, isLNat XS), and#(active X1, X2) -> and#(X1, X2)) (active# splitAt(s N, cons(X, XS)) -> and#(isNatural X, isLNat XS), and#(mark X1, X2) -> and#(X1, X2)) (active# splitAt(s N, cons(X, XS)) -> and#(isNatural X, isLNat XS), and#(X1, active X2) -> and#(X1, X2)) (active# splitAt(s N, cons(X, XS)) -> and#(isNatural X, isLNat XS), and#(X1, mark X2) -> and#(X1, X2)) (active# head cons(N, XS) -> and#(isNatural N, isLNat XS), and#(active X1, X2) -> and#(X1, X2)) (active# head cons(N, XS) -> and#(isNatural N, isLNat XS), and#(mark X1, X2) -> and#(X1, X2)) (active# head cons(N, XS) -> and#(isNatural N, isLNat XS), and#(X1, active X2) -> and#(X1, X2)) (active# head cons(N, XS) -> and#(isNatural N, isLNat XS), and#(X1, mark X2) -> and#(X1, X2)) (active# isNatural sel(V1, V2) -> and#(isNatural V1, isLNat V2), and#(active X1, X2) -> and#(X1, X2)) (active# isNatural sel(V1, V2) -> and#(isNatural V1, isLNat V2), and#(mark X1, X2) -> and#(X1, X2)) (active# isNatural sel(V1, V2) -> and#(isNatural V1, isLNat V2), and#(X1, active X2) -> and#(X1, X2)) (active# isNatural sel(V1, V2) -> and#(isNatural V1, isLNat V2), and#(X1, mark X2) -> and#(X1, X2)) (active# isLNat afterNth(V1, V2) -> and#(isNatural V1, isLNat V2), and#(active X1, X2) -> and#(X1, X2)) (active# isLNat afterNth(V1, V2) -> and#(isNatural V1, isLNat V2), and#(mark X1, X2) -> and#(X1, X2)) (active# isLNat afterNth(V1, V2) -> and#(isNatural V1, isLNat V2), and#(X1, active X2) -> and#(X1, X2)) (active# isLNat afterNth(V1, V2) -> and#(isNatural V1, isLNat V2), and#(X1, mark X2) -> and#(X1, X2)) (active# isPLNat splitAt(V1, V2) -> and#(isNatural V1, isLNat V2), and#(active X1, X2) -> and#(X1, X2)) (active# isPLNat splitAt(V1, V2) -> and#(isNatural V1, isLNat V2), and#(mark X1, X2) -> and#(X1, X2)) (active# isPLNat splitAt(V1, V2) -> and#(isNatural V1, isLNat V2), and#(X1, active X2) -> and#(X1, X2)) (active# isPLNat splitAt(V1, V2) -> and#(isNatural V1, isLNat V2), and#(X1, mark X2) -> and#(X1, X2)) (active# tail cons(N, XS) -> and#(isNatural N, isLNat XS), and#(active X1, X2) -> and#(X1, X2)) (active# tail cons(N, XS) -> and#(isNatural N, isLNat XS), and#(mark X1, X2) -> and#(X1, X2)) (active# tail cons(N, XS) -> and#(isNatural N, isLNat XS), and#(X1, active X2) -> and#(X1, X2)) (active# tail cons(N, XS) -> and#(isNatural N, isLNat XS), and#(X1, mark X2) -> and#(X1, X2)) (active# sel(N, XS) -> and#(isNatural N, isLNat XS), and#(active X1, X2) -> and#(X1, X2)) (active# sel(N, XS) -> and#(isNatural N, isLNat XS), and#(mark X1, X2) -> and#(X1, X2)) (active# sel(N, XS) -> and#(isNatural N, isLNat XS), and#(X1, active X2) -> and#(X1, X2)) (active# sel(N, XS) -> and#(isNatural N, isLNat XS), and#(X1, mark X2) -> and#(X1, X2)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# sel(N, XS) -> isLNat# XS) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# sel(N, XS) -> isNatural# N) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# sel(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# sel(N, XS) -> U51#(and(isNatural N, isLNat XS), N, XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# take(N, XS) -> isLNat# XS) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# take(N, XS) -> isNatural# N) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# take(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# take(N, XS) -> U101#(and(isNatural N, isLNat XS), N, XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# tail cons(N, XS) -> isLNat# XS) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# tail cons(N, XS) -> isNatural# N) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# tail cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# tail cons(N, XS) -> U91#(and(isNatural N, isLNat XS), XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isPLNat pair(V1, V2) -> isLNat# V2) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isPLNat pair(V1, V2) -> isLNat# V1) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isPLNat pair(V1, V2) -> and#(isLNat V1, isLNat V2)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isPLNat splitAt(V1, V2) -> isLNat# V2) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isPLNat splitAt(V1, V2) -> isNatural# V1) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isPLNat splitAt(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isLNat take(V1, V2) -> isLNat# V2) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isLNat take(V1, V2) -> isNatural# V1) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isLNat take(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isLNat take(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isLNat tail V1 -> isLNat# V1) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isLNat tail V1 -> mark# isLNat V1) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isLNat nil() -> mark# tt()) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isLNat afterNth(V1, V2) -> isLNat# V2) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isLNat afterNth(V1, V2) -> isNatural# V1) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isLNat afterNth(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isLNat natsFrom V1 -> isNatural# V1) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isLNat natsFrom V1 -> mark# isNatural V1) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isLNat cons(V1, V2) -> isLNat# V2) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isLNat cons(V1, V2) -> isNatural# V1) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isLNat cons(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isLNat cons(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isLNat snd V1 -> isPLNat# V1) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isLNat snd V1 -> mark# isPLNat V1) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isLNat fst V1 -> isPLNat# V1) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isLNat fst V1 -> mark# isPLNat V1) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isNatural sel(V1, V2) -> isLNat# V2) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isNatural sel(V1, V2) -> isNatural# V1) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isNatural sel(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isNatural sel(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isNatural 0() -> mark# tt()) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isNatural head V1 -> isLNat# V1) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isNatural head V1 -> mark# isLNat V1) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isNatural s V1 -> isNatural# V1) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# isNatural s V1 -> mark# isNatural V1) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# and(tt(), X) -> mark# X) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# U91(tt(), XS) -> mark# XS) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# U81(tt(), N, X, XS) -> U82#(splitAt(N, XS), X)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# U81(tt(), N, X, XS) -> splitAt#(N, XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# U82(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# U82(pair(YS, ZS), X) -> cons#(X, YS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# U71(tt(), XS) -> pair#(nil(), XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# U71(tt(), XS) -> mark# pair(nil(), XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# U61(tt(), Y) -> mark# Y) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# U51(tt(), N, XS) -> afterNth#(N, XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# U51(tt(), N, XS) -> head# afterNth(N, XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# U51(tt(), N, XS) -> mark# head afterNth(N, XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# afterNth(N, XS) -> isLNat# XS) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# afterNth(N, XS) -> isNatural# N) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# afterNth(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# afterNth(N, XS) -> U11#(and(isNatural N, isLNat XS), N, XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# head cons(N, XS) -> isLNat# XS) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# head cons(N, XS) -> isNatural# N) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# head cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# head cons(N, XS) -> U31#(and(isNatural N, isLNat XS), N)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# U41(tt(), N) -> s# N) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# U41(tt(), N) -> natsFrom# s N) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# U41(tt(), N) -> cons#(N, natsFrom s N)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# U41(tt(), N) -> mark# cons(N, natsFrom s N)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# natsFrom N -> isNatural# N) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# natsFrom N -> U41#(isNatural N, N)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# natsFrom N -> mark# U41(isNatural N, N)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# U31(tt(), N) -> mark# N) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# U21(tt(), X) -> mark# X) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# U11(tt(), N, XS) -> snd# splitAt(N, XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# U11(tt(), N, XS) -> splitAt#(N, XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# U11(tt(), N, XS) -> mark# snd splitAt(N, XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# snd pair(X, Y) -> isLNat# Y) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# snd pair(X, Y) -> isLNat# X) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# snd pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# snd pair(X, Y) -> U61#(and(isLNat X, isLNat Y), Y)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# U101(tt(), N, XS) -> splitAt#(N, XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# U101(tt(), N, XS) -> fst# splitAt(N, XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# splitAt(0(), XS) -> isLNat# XS) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# splitAt(0(), XS) -> U71#(isLNat XS, XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> isLNat# XS) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> isNatural# X) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> isNatural# N) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> and#(isNatural X, isLNat XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> and#(isNatural N, and(isNatural X, isLNat XS))) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> U81#(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# fst pair(X, Y) -> isLNat# Y) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# fst pair(X, Y) -> isLNat# X) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# fst pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# fst pair(X, Y) -> U21#(and(isLNat X, isLNat Y), X)) (mark# U31(X1, X2) -> active# U31(mark X1, X2), active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# sel(N, XS) -> isLNat# XS) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# sel(N, XS) -> isNatural# N) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# sel(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# sel(N, XS) -> U51#(and(isNatural N, isLNat XS), N, XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# take(N, XS) -> isLNat# XS) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# take(N, XS) -> isNatural# N) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# take(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# take(N, XS) -> U101#(and(isNatural N, isLNat XS), N, XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# tail cons(N, XS) -> isLNat# XS) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# tail cons(N, XS) -> isNatural# N) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# tail cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# tail cons(N, XS) -> U91#(and(isNatural N, isLNat XS), XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isPLNat pair(V1, V2) -> isLNat# V2) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isPLNat pair(V1, V2) -> isLNat# V1) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isPLNat pair(V1, V2) -> and#(isLNat V1, isLNat V2)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isPLNat splitAt(V1, V2) -> isLNat# V2) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isPLNat splitAt(V1, V2) -> isNatural# V1) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isPLNat splitAt(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isLNat take(V1, V2) -> isLNat# V2) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isLNat take(V1, V2) -> isNatural# V1) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isLNat take(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isLNat take(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isLNat tail V1 -> isLNat# V1) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isLNat tail V1 -> mark# isLNat V1) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isLNat nil() -> mark# tt()) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isLNat afterNth(V1, V2) -> isLNat# V2) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isLNat afterNth(V1, V2) -> isNatural# V1) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isLNat afterNth(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isLNat natsFrom V1 -> isNatural# V1) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isLNat natsFrom V1 -> mark# isNatural V1) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isLNat cons(V1, V2) -> isLNat# V2) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isLNat cons(V1, V2) -> isNatural# V1) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isLNat cons(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isLNat cons(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isLNat snd V1 -> isPLNat# V1) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isLNat snd V1 -> mark# isPLNat V1) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isLNat fst V1 -> isPLNat# V1) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isLNat fst V1 -> mark# isPLNat V1) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isNatural sel(V1, V2) -> isLNat# V2) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isNatural sel(V1, V2) -> isNatural# V1) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isNatural sel(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isNatural sel(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isNatural 0() -> mark# tt()) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isNatural head V1 -> isLNat# V1) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isNatural head V1 -> mark# isLNat V1) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isNatural s V1 -> isNatural# V1) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# isNatural s V1 -> mark# isNatural V1) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# and(tt(), X) -> mark# X) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U91(tt(), XS) -> mark# XS) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U81(tt(), N, X, XS) -> U82#(splitAt(N, XS), X)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U81(tt(), N, X, XS) -> splitAt#(N, XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U82(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U82(pair(YS, ZS), X) -> cons#(X, YS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U71(tt(), XS) -> pair#(nil(), XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U71(tt(), XS) -> mark# pair(nil(), XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U61(tt(), Y) -> mark# Y) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U51(tt(), N, XS) -> afterNth#(N, XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U51(tt(), N, XS) -> head# afterNth(N, XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U51(tt(), N, XS) -> mark# head afterNth(N, XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# afterNth(N, XS) -> isLNat# XS) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# afterNth(N, XS) -> isNatural# N) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# afterNth(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# afterNth(N, XS) -> U11#(and(isNatural N, isLNat XS), N, XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# head cons(N, XS) -> isLNat# XS) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# head cons(N, XS) -> isNatural# N) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# head cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# head cons(N, XS) -> U31#(and(isNatural N, isLNat XS), N)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U41(tt(), N) -> s# N) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U41(tt(), N) -> natsFrom# s N) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U41(tt(), N) -> cons#(N, natsFrom s N)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U41(tt(), N) -> mark# cons(N, natsFrom s N)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# natsFrom N -> isNatural# N) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# natsFrom N -> U41#(isNatural N, N)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# natsFrom N -> mark# U41(isNatural N, N)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U31(tt(), N) -> mark# N) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U21(tt(), X) -> mark# X) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U11(tt(), N, XS) -> snd# splitAt(N, XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U11(tt(), N, XS) -> splitAt#(N, XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U11(tt(), N, XS) -> mark# snd splitAt(N, XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# snd pair(X, Y) -> isLNat# Y) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# snd pair(X, Y) -> isLNat# X) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# snd pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# snd pair(X, Y) -> U61#(and(isLNat X, isLNat Y), Y)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U101(tt(), N, XS) -> splitAt#(N, XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U101(tt(), N, XS) -> fst# splitAt(N, XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# splitAt(0(), XS) -> isLNat# XS) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# splitAt(0(), XS) -> U71#(isLNat XS, XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> isLNat# XS) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> isNatural# X) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> isNatural# N) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> and#(isNatural X, isLNat XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> and#(isNatural N, and(isNatural X, isLNat XS))) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> U81#(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# fst pair(X, Y) -> isLNat# Y) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# fst pair(X, Y) -> isLNat# X) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# fst pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# fst pair(X, Y) -> U21#(and(isLNat X, isLNat Y), X)) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X)) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# sel(N, XS) -> isLNat# XS) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# sel(N, XS) -> isNatural# N) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# sel(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# sel(N, XS) -> U51#(and(isNatural N, isLNat XS), N, XS)) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS)) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# take(N, XS) -> isLNat# XS) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# take(N, XS) -> isNatural# N) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# take(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# take(N, XS) -> U101#(and(isNatural N, isLNat XS), N, XS)) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS)) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# tail cons(N, XS) -> isLNat# XS) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# tail cons(N, XS) -> isNatural# N) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# tail cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# tail cons(N, XS) -> U91#(and(isNatural N, isLNat XS), XS)) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS)) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isPLNat pair(V1, V2) -> isLNat# V2) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isPLNat pair(V1, V2) -> isLNat# V1) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isPLNat pair(V1, V2) -> and#(isLNat V1, isLNat V2)) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2)) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isPLNat splitAt(V1, V2) -> isLNat# V2) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isPLNat splitAt(V1, V2) -> isNatural# V1) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isPLNat splitAt(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isLNat take(V1, V2) -> isLNat# V2) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isLNat take(V1, V2) -> isNatural# V1) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isLNat take(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isLNat take(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isLNat tail V1 -> isLNat# V1) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isLNat tail V1 -> mark# isLNat V1) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isLNat nil() -> mark# tt()) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isLNat afterNth(V1, V2) -> isLNat# V2) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isLNat afterNth(V1, V2) -> isNatural# V1) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isLNat afterNth(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isLNat natsFrom V1 -> isNatural# V1) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isLNat natsFrom V1 -> mark# isNatural V1) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isLNat cons(V1, V2) -> isLNat# V2) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isLNat cons(V1, V2) -> isNatural# V1) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isLNat cons(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isLNat cons(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isLNat snd V1 -> isPLNat# V1) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isLNat snd V1 -> mark# isPLNat V1) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isLNat fst V1 -> isPLNat# V1) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isLNat fst V1 -> mark# isPLNat V1) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isNatural sel(V1, V2) -> isLNat# V2) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isNatural sel(V1, V2) -> isNatural# V1) (mark# U71(X1, X2) -> active# U71(mark X1, X2), active# isNatural sel(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U71(X1, X2) -> active# U71(mark X1, 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X2) -> active# U91(mark X1, X2), active# U11(tt(), N, XS) -> splitAt#(N, XS)) (mark# U91(X1, X2) -> active# U91(mark X1, X2), active# U11(tt(), N, XS) -> mark# snd splitAt(N, XS)) (mark# U91(X1, X2) -> active# U91(mark X1, X2), active# snd pair(X, Y) -> isLNat# Y) (mark# U91(X1, X2) -> active# U91(mark X1, X2), active# snd pair(X, Y) -> isLNat# X) (mark# U91(X1, X2) -> active# U91(mark X1, X2), active# snd pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# U91(X1, X2) -> active# U91(mark X1, X2), active# snd pair(X, Y) -> U61#(and(isLNat X, isLNat Y), Y)) (mark# U91(X1, X2) -> active# U91(mark X1, X2), active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y)) (mark# U91(X1, X2) -> active# U91(mark X1, X2), active# U101(tt(), N, XS) -> splitAt#(N, XS)) (mark# U91(X1, X2) -> active# U91(mark X1, X2), active# U101(tt(), N, XS) -> fst# splitAt(N, XS)) (mark# U91(X1, X2) -> active# U91(mark X1, X2), active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS)) (mark# U91(X1, X2) -> active# U91(mark X1, X2), active# splitAt(0(), XS) -> isLNat# XS) (mark# U91(X1, X2) -> active# U91(mark X1, X2), active# splitAt(0(), XS) -> U71#(isLNat XS, XS)) (mark# U91(X1, X2) -> active# U91(mark X1, X2), active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS)) (mark# U91(X1, X2) -> active# U91(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> isLNat# XS) (mark# U91(X1, X2) -> active# U91(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> isNatural# X) (mark# U91(X1, X2) -> active# U91(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> isNatural# N) (mark# U91(X1, X2) -> active# U91(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> and#(isNatural X, isLNat XS)) (mark# U91(X1, X2) -> active# U91(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> and#(isNatural N, and(isNatural X, isLNat XS))) (mark# U91(X1, X2) -> active# U91(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> U81#(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# U91(X1, X2) -> active# U91(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# U91(X1, X2) -> active# U91(mark X1, X2), active# fst pair(X, Y) -> isLNat# Y) (mark# U91(X1, X2) -> active# U91(mark X1, X2), active# fst pair(X, Y) -> isLNat# X) (mark# U91(X1, X2) -> active# U91(mark X1, X2), active# fst pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# U91(X1, X2) -> active# U91(mark X1, X2), active# fst pair(X, Y) -> U21#(and(isLNat X, isLNat Y), X)) (mark# U91(X1, X2) -> active# U91(mark X1, X2), active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# sel(X1, X2) -> mark# X2) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# sel(X1, X2) -> mark# X1) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# 0() -> active# 0()) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# take(X1, X2) -> take#(mark X1, mark X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# take(X1, X2) -> active# take(mark X1, mark X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# take(X1, X2) -> mark# X2) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# take(X1, X2) -> mark# X1) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# tail X -> tail# mark X) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# tail X -> active# tail mark X) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# tail X -> mark# X) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# isPLNat X -> active# isPLNat X) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# isLNat X -> active# isLNat X) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# isNatural X -> active# isNatural X) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# and(X1, X2) -> and#(mark X1, X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# and(X1, X2) -> active# and(mark X1, X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# and(X1, X2) -> mark# X1) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U91(X1, X2) -> U91#(mark X1, X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U91(X1, X2) -> active# U91(mark X1, X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U91(X1, X2) -> mark# X1) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U81(X1, X2, X3, X4) -> mark# X1) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U82(X1, X2) -> U82#(mark X1, X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U82(X1, X2) -> active# U82(mark X1, X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U82(X1, X2) -> mark# X1) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U71(X1, X2) -> U71#(mark X1, X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U71(X1, X2) -> active# U71(mark X1, X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U71(X1, X2) -> mark# X1) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# nil() -> active# nil()) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# pair(X1, X2) -> mark# X2) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# pair(X1, X2) -> mark# X1) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U61(X1, X2) -> U61#(mark X1, X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U61(X1, X2) -> active# U61(mark X1, X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U61(X1, X2) -> mark# X1) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U51(X1, X2, X3) -> mark# X1) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# afterNth(X1, X2) -> mark# X2) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# afterNth(X1, X2) -> mark# X1) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# head X -> head# mark X) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# head X -> active# head mark X) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# head X -> mark# X) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U41(X1, X2) -> U41#(mark X1, X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U41(X1, X2) -> active# U41(mark X1, X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U41(X1, X2) -> mark# X1) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# s X -> s# mark X) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# s X -> active# s mark X) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# s X -> mark# X) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# natsFrom X -> natsFrom# mark X) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# natsFrom X -> active# natsFrom mark X) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# natsFrom X -> mark# X) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# cons(X1, X2) -> cons#(mark X1, X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# cons(X1, X2) -> active# cons(mark X1, X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# cons(X1, X2) -> mark# X1) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U31(X1, X2) -> U31#(mark X1, X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U31(X1, X2) -> active# U31(mark X1, X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U31(X1, X2) -> mark# X1) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U21(X1, X2) -> U21#(mark X1, X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U21(X1, X2) -> active# U21(mark X1, X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U21(X1, X2) -> mark# X1) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U11(X1, X2, X3) -> mark# X1) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# snd X -> snd# mark X) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# snd X -> active# snd mark X) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# snd X -> mark# X) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# tt() -> active# tt()) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# U101(X1, X2, X3) -> mark# X1) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# splitAt(X1, X2) -> mark# X2) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# splitAt(X1, X2) -> mark# X1) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# fst X -> active# fst mark X) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# fst X -> fst# mark X) (active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), mark# fst X -> mark# X) (active# U101(tt(), N, XS) -> fst# splitAt(N, XS), fst# active X -> fst# X) (active# U101(tt(), N, XS) -> fst# splitAt(N, XS), fst# mark X -> fst# X) (active# U11(tt(), N, XS) -> snd# splitAt(N, XS), snd# active X -> snd# X) (active# U11(tt(), N, XS) -> snd# splitAt(N, XS), snd# mark X -> snd# X) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# sel(X1, X2) -> mark# X2) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# sel(X1, X2) -> mark# X1) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# 0() -> active# 0()) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# take(X1, X2) -> take#(mark X1, mark X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# take(X1, X2) -> active# take(mark X1, mark X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# take(X1, X2) -> mark# X2) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# take(X1, X2) -> mark# X1) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# tail X -> tail# mark X) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# tail X -> active# tail mark X) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# tail X -> mark# X) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# isPLNat X -> active# isPLNat X) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# isLNat X -> active# isLNat X) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# isNatural X -> active# isNatural X) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# and(X1, X2) -> and#(mark X1, X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# and(X1, X2) -> active# and(mark X1, X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# and(X1, X2) -> mark# X1) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U91(X1, X2) -> U91#(mark X1, X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U91(X1, X2) -> active# U91(mark X1, X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U91(X1, X2) -> mark# X1) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U81(X1, X2, X3, X4) -> mark# X1) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U82(X1, X2) -> U82#(mark X1, X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U82(X1, X2) -> active# U82(mark X1, X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U82(X1, X2) -> mark# X1) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U71(X1, X2) -> U71#(mark X1, X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U71(X1, X2) -> active# U71(mark X1, X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U71(X1, X2) -> mark# X1) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# nil() -> active# nil()) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# pair(X1, X2) -> mark# X2) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# pair(X1, X2) -> mark# X1) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U61(X1, X2) -> U61#(mark X1, X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U61(X1, X2) -> active# U61(mark X1, X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U61(X1, X2) -> mark# X1) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U51(X1, X2, X3) -> mark# X1) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# afterNth(X1, X2) -> mark# X2) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# afterNth(X1, X2) -> mark# X1) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# head X -> head# mark X) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# head X -> active# head mark X) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# head X -> mark# X) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U41(X1, X2) -> U41#(mark X1, X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U41(X1, X2) -> active# U41(mark X1, X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U41(X1, X2) -> mark# X1) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# s X -> s# mark X) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# s X -> active# s mark X) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# s X -> mark# X) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# natsFrom X -> natsFrom# mark X) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# natsFrom X -> active# natsFrom mark X) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# natsFrom X -> mark# X) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# cons(X1, X2) -> cons#(mark X1, X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# cons(X1, X2) -> active# cons(mark X1, X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# cons(X1, X2) -> mark# X1) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U31(X1, X2) -> U31#(mark X1, X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U31(X1, X2) -> active# U31(mark X1, X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U31(X1, X2) -> mark# X1) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U21(X1, X2) -> U21#(mark X1, X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U21(X1, X2) -> active# U21(mark X1, X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U21(X1, X2) -> mark# X1) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U11(X1, X2, X3) -> mark# X1) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# snd X -> snd# mark X) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# snd X -> active# snd mark X) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# snd X -> mark# X) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# tt() -> active# tt()) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# U101(X1, X2, X3) -> mark# X1) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# splitAt(X1, X2) -> mark# X2) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# splitAt(X1, X2) -> mark# X1) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# fst X -> active# fst mark X) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# fst X -> fst# mark X) (active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), mark# fst X -> mark# X) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# sel(X1, X2) -> mark# X2) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# sel(X1, X2) -> mark# X1) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# 0() -> active# 0()) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# take(X1, X2) -> take#(mark X1, mark X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# take(X1, X2) -> active# take(mark X1, mark X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# take(X1, X2) -> mark# X2) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# take(X1, X2) -> mark# X1) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# tail X -> tail# mark X) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# tail X -> active# tail mark X) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# tail X -> mark# X) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# isPLNat X -> active# isPLNat X) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# isLNat X -> active# isLNat X) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# isNatural X -> active# isNatural X) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# and(X1, X2) -> and#(mark X1, X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# and(X1, X2) -> active# and(mark X1, X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# and(X1, X2) -> mark# X1) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U91(X1, X2) -> U91#(mark X1, X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U91(X1, X2) -> active# U91(mark X1, X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U91(X1, X2) -> mark# X1) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U81(X1, X2, X3, X4) -> mark# X1) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U82(X1, X2) -> U82#(mark X1, X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U82(X1, X2) -> active# U82(mark X1, X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U82(X1, X2) -> mark# X1) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U71(X1, X2) -> U71#(mark X1, X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U71(X1, X2) -> active# U71(mark X1, X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U71(X1, X2) -> mark# X1) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# nil() -> active# nil()) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# pair(X1, X2) -> mark# X2) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# pair(X1, X2) -> mark# X1) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U61(X1, X2) -> U61#(mark X1, X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U61(X1, X2) -> active# U61(mark X1, X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U61(X1, X2) -> mark# X1) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U51(X1, X2, X3) -> mark# X1) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# afterNth(X1, X2) -> mark# X2) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# afterNth(X1, X2) -> mark# X1) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# head X -> head# mark X) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# head X -> active# head mark X) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# head X -> mark# X) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U41(X1, X2) -> U41#(mark X1, X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U41(X1, X2) -> active# U41(mark X1, X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U41(X1, X2) -> mark# X1) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# s X -> s# mark X) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# s X -> active# s mark X) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# s X -> mark# X) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# natsFrom X -> natsFrom# mark X) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# natsFrom X -> active# natsFrom mark X) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# natsFrom X -> mark# X) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# cons(X1, X2) -> cons#(mark X1, X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# cons(X1, X2) -> active# cons(mark X1, X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# cons(X1, X2) -> mark# X1) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U31(X1, X2) -> U31#(mark X1, X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U31(X1, X2) -> active# U31(mark X1, X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U31(X1, X2) -> mark# X1) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U21(X1, X2) -> U21#(mark X1, X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U21(X1, X2) -> active# U21(mark X1, X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U21(X1, X2) -> mark# X1) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U11(X1, X2, X3) -> mark# X1) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# snd X -> snd# mark X) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# snd X -> active# snd mark X) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# snd X -> mark# X) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# tt() -> active# tt()) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# U101(X1, X2, X3) -> mark# X1) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# splitAt(X1, X2) -> mark# X2) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# splitAt(X1, X2) -> mark# X1) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# fst X -> active# fst mark X) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# fst X -> fst# mark X) (active# U71(tt(), XS) -> mark# pair(nil(), XS), mark# fst X -> mark# X) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# sel(X1, X2) -> mark# X2) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# sel(X1, X2) -> mark# X1) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# 0() -> active# 0()) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# take(X1, X2) -> take#(mark X1, mark X2)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# take(X1, X2) -> active# take(mark X1, mark X2)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# take(X1, X2) -> mark# X2) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# take(X1, X2) -> mark# X1) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# tail X -> tail# mark X) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# tail X -> active# tail mark X) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# tail X -> mark# X) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# isPLNat X -> active# isPLNat X) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# isLNat X -> active# isLNat X) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# isNatural X -> active# isNatural X) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# and(X1, X2) -> and#(mark X1, X2)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# and(X1, X2) -> active# and(mark X1, X2)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# and(X1, X2) -> 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U82(splitAt(N, XS), X), mark# U71(X1, X2) -> U71#(mark X1, X2)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# U71(X1, X2) -> active# U71(mark X1, X2)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# U71(X1, X2) -> mark# X1) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# nil() -> active# nil()) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# pair(X1, X2) -> mark# X2) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# pair(X1, X2) -> mark# X1) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# U61(X1, X2) -> U61#(mark X1, X2)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# U61(X1, X2) -> active# U61(mark X1, X2)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# U61(X1, X2) -> mark# X1) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# U51(X1, X2, X3) -> mark# X1) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# afterNth(X1, X2) -> mark# X2) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# afterNth(X1, X2) -> mark# X1) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# head X -> head# mark X) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# head X -> active# head mark X) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# head X -> mark# X) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# U41(X1, X2) -> U41#(mark X1, X2)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# U41(X1, X2) -> active# U41(mark X1, X2)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# U41(X1, X2) -> mark# X1) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# s X -> s# mark X) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# s X -> active# s mark X) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# s X -> mark# X) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# natsFrom X -> natsFrom# mark X) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# natsFrom X -> active# natsFrom mark X) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# natsFrom X -> mark# X) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# cons(X1, X2) -> cons#(mark X1, X2)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# cons(X1, X2) -> active# cons(mark X1, X2)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# cons(X1, X2) -> mark# X1) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# U31(X1, X2) -> U31#(mark X1, X2)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# U31(X1, X2) -> active# U31(mark X1, X2)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# U31(X1, X2) -> mark# X1) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# U21(X1, X2) -> U21#(mark X1, X2)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# U21(X1, X2) -> active# U21(mark X1, X2)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# U21(X1, X2) -> mark# X1) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# U11(X1, X2, X3) -> mark# X1) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# snd X -> snd# mark X) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# snd X -> active# snd mark X) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# snd X -> mark# X) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# tt() -> active# tt()) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# U101(X1, X2, X3) -> mark# X1) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# splitAt(X1, X2) -> mark# X2) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# splitAt(X1, X2) -> mark# X1) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# fst X -> active# fst mark X) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# fst X -> fst# mark X) (active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), mark# fst X -> mark# X) (mark# splitAt(X1, X2) -> mark# X1, mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (mark# splitAt(X1, X2) -> mark# X1, mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (mark# splitAt(X1, X2) -> mark# X1, mark# sel(X1, X2) -> mark# X2) (mark# splitAt(X1, X2) -> mark# X1, mark# sel(X1, X2) -> mark# X1) (mark# splitAt(X1, X2) -> mark# X1, mark# 0() -> active# 0()) (mark# splitAt(X1, X2) -> mark# X1, mark# take(X1, X2) -> take#(mark X1, mark X2)) (mark# splitAt(X1, X2) -> mark# X1, mark# take(X1, X2) -> active# take(mark X1, mark X2)) (mark# splitAt(X1, X2) -> mark# X1, mark# take(X1, X2) -> mark# X2) (mark# splitAt(X1, X2) -> mark# X1, mark# take(X1, X2) -> mark# X1) (mark# splitAt(X1, X2) -> mark# X1, mark# tail X -> tail# mark X) (mark# splitAt(X1, X2) -> mark# X1, mark# tail X -> active# tail mark X) (mark# splitAt(X1, X2) -> mark# X1, mark# tail X -> mark# X) (mark# splitAt(X1, X2) -> mark# X1, mark# isPLNat X -> active# isPLNat X) (mark# splitAt(X1, X2) -> mark# X1, mark# isLNat X -> active# isLNat X) (mark# splitAt(X1, X2) -> mark# X1, mark# isNatural X -> active# isNatural X) (mark# splitAt(X1, X2) -> mark# X1, mark# and(X1, X2) -> and#(mark X1, X2)) (mark# splitAt(X1, X2) -> mark# X1, mark# and(X1, X2) -> active# and(mark X1, X2)) (mark# splitAt(X1, X2) -> mark# X1, mark# and(X1, X2) -> mark# X1) (mark# splitAt(X1, X2) -> mark# X1, mark# U91(X1, X2) -> U91#(mark X1, X2)) (mark# splitAt(X1, X2) -> mark# X1, mark# U91(X1, X2) -> active# U91(mark X1, X2)) (mark# splitAt(X1, X2) -> mark# X1, mark# U91(X1, X2) -> mark# X1) (mark# splitAt(X1, X2) -> mark# X1, mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (mark# splitAt(X1, X2) -> mark# X1, mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (mark# splitAt(X1, X2) -> mark# X1, mark# U81(X1, X2, X3, X4) -> mark# X1) (mark# splitAt(X1, X2) -> mark# X1, mark# U82(X1, X2) -> U82#(mark X1, X2)) (mark# splitAt(X1, X2) -> mark# X1, mark# U82(X1, X2) -> active# U82(mark X1, X2)) (mark# splitAt(X1, X2) -> mark# X1, mark# U82(X1, X2) -> mark# X1) (mark# splitAt(X1, X2) -> mark# X1, mark# U71(X1, X2) -> U71#(mark X1, X2)) (mark# splitAt(X1, X2) -> mark# X1, mark# U71(X1, X2) -> active# U71(mark X1, X2)) (mark# splitAt(X1, X2) -> mark# X1, mark# U71(X1, X2) -> mark# X1) (mark# splitAt(X1, X2) -> mark# X1, mark# nil() -> active# nil()) (mark# splitAt(X1, X2) -> mark# X1, mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (mark# splitAt(X1, X2) -> mark# X1, mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (mark# splitAt(X1, X2) -> mark# X1, mark# pair(X1, X2) -> mark# X2) (mark# splitAt(X1, X2) -> mark# X1, mark# pair(X1, X2) -> mark# X1) (mark# splitAt(X1, X2) -> mark# X1, mark# U61(X1, X2) -> U61#(mark X1, X2)) (mark# splitAt(X1, X2) -> mark# X1, mark# U61(X1, X2) -> active# U61(mark X1, X2)) (mark# splitAt(X1, X2) -> mark# X1, mark# U61(X1, X2) -> mark# X1) (mark# splitAt(X1, X2) -> mark# X1, mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (mark# splitAt(X1, X2) -> mark# X1, mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (mark# splitAt(X1, X2) -> mark# X1, mark# U51(X1, X2, X3) -> mark# X1) (mark# splitAt(X1, X2) -> mark# X1, mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (mark# splitAt(X1, X2) -> mark# X1, mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (mark# splitAt(X1, X2) -> mark# X1, mark# afterNth(X1, X2) -> mark# X2) (mark# splitAt(X1, X2) -> mark# X1, mark# afterNth(X1, X2) -> mark# X1) (mark# splitAt(X1, X2) -> mark# X1, mark# head X -> head# mark X) (mark# splitAt(X1, X2) -> mark# X1, mark# head X -> active# head mark X) (mark# splitAt(X1, X2) -> mark# X1, mark# head X -> mark# X) (mark# splitAt(X1, X2) -> mark# X1, mark# U41(X1, X2) -> U41#(mark X1, X2)) (mark# splitAt(X1, X2) -> mark# X1, mark# U41(X1, X2) -> active# U41(mark X1, X2)) (mark# splitAt(X1, X2) -> mark# X1, mark# U41(X1, X2) -> mark# X1) (mark# splitAt(X1, X2) -> mark# X1, mark# s X -> s# mark X) (mark# splitAt(X1, X2) -> mark# X1, mark# s X -> active# s mark X) (mark# splitAt(X1, X2) -> mark# X1, mark# s X -> mark# X) (mark# splitAt(X1, X2) -> mark# X1, mark# natsFrom X -> natsFrom# mark X) (mark# splitAt(X1, X2) -> mark# X1, mark# natsFrom X -> active# natsFrom mark X) (mark# splitAt(X1, X2) -> mark# X1, mark# natsFrom X -> mark# X) (mark# splitAt(X1, X2) -> mark# X1, mark# cons(X1, X2) -> cons#(mark X1, X2)) (mark# splitAt(X1, X2) -> mark# X1, mark# cons(X1, X2) -> active# cons(mark X1, X2)) (mark# splitAt(X1, X2) -> mark# X1, mark# cons(X1, X2) -> mark# X1) (mark# splitAt(X1, X2) -> mark# X1, mark# U31(X1, X2) -> U31#(mark X1, X2)) (mark# splitAt(X1, X2) -> mark# X1, mark# U31(X1, X2) -> active# U31(mark X1, X2)) (mark# splitAt(X1, X2) -> mark# X1, mark# U31(X1, X2) -> mark# X1) (mark# splitAt(X1, X2) -> mark# X1, mark# U21(X1, X2) -> U21#(mark X1, X2)) (mark# splitAt(X1, X2) -> mark# X1, mark# U21(X1, X2) -> active# U21(mark X1, X2)) (mark# splitAt(X1, X2) -> mark# X1, mark# U21(X1, X2) -> mark# X1) (mark# splitAt(X1, X2) -> mark# X1, mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (mark# splitAt(X1, X2) -> mark# X1, mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (mark# splitAt(X1, X2) -> mark# X1, mark# U11(X1, X2, X3) -> mark# X1) (mark# splitAt(X1, X2) -> mark# X1, mark# snd X -> snd# mark X) (mark# splitAt(X1, X2) -> mark# X1, mark# snd X -> active# snd mark X) (mark# splitAt(X1, X2) -> mark# 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-> active# sel(mark X1, mark X2)) (mark# U11(X1, X2, X3) -> mark# X1, mark# sel(X1, X2) -> mark# X2) (mark# U11(X1, X2, X3) -> mark# X1, mark# sel(X1, X2) -> mark# X1) (mark# U11(X1, X2, X3) -> mark# X1, mark# 0() -> active# 0()) (mark# U11(X1, X2, X3) -> mark# X1, mark# take(X1, X2) -> take#(mark X1, mark X2)) (mark# U11(X1, X2, X3) -> mark# X1, mark# take(X1, X2) -> active# take(mark X1, mark X2)) (mark# U11(X1, X2, X3) -> mark# X1, mark# take(X1, X2) -> mark# X2) (mark# U11(X1, X2, X3) -> mark# X1, mark# take(X1, X2) -> mark# X1) (mark# U11(X1, X2, X3) -> mark# X1, mark# tail X -> tail# mark X) (mark# U11(X1, X2, X3) -> mark# X1, mark# tail X -> active# tail mark X) (mark# U11(X1, X2, X3) -> mark# X1, mark# tail X -> mark# X) (mark# U11(X1, X2, X3) -> mark# X1, mark# isPLNat X -> active# isPLNat X) (mark# U11(X1, X2, X3) -> mark# X1, mark# isLNat X -> active# isLNat X) (mark# U11(X1, X2, X3) -> mark# X1, mark# isNatural X -> active# isNatural X) (mark# U11(X1, X2, X3) -> mark# X1, 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U51#(mark X1, X2, X3)) (mark# pair(X1, X2) -> mark# X1, mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (mark# pair(X1, X2) -> mark# X1, mark# U51(X1, X2, X3) -> mark# X1) (mark# pair(X1, X2) -> mark# X1, mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (mark# pair(X1, X2) -> mark# X1, mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (mark# pair(X1, X2) -> mark# X1, mark# afterNth(X1, X2) -> mark# X2) (mark# pair(X1, X2) -> mark# X1, mark# afterNth(X1, X2) -> mark# X1) (mark# pair(X1, X2) -> mark# X1, mark# head X -> head# mark X) (mark# pair(X1, X2) -> mark# X1, mark# head X -> active# head mark X) (mark# pair(X1, X2) -> mark# X1, mark# head X -> mark# X) (mark# pair(X1, X2) -> mark# X1, mark# U41(X1, X2) -> U41#(mark X1, X2)) (mark# pair(X1, X2) -> mark# X1, mark# U41(X1, X2) -> active# U41(mark X1, X2)) (mark# pair(X1, X2) -> mark# X1, mark# U41(X1, X2) -> mark# X1) (mark# pair(X1, X2) -> mark# X1, mark# s X -> s# mark X) (mark# pair(X1, X2) -> mark# X1, mark# s X -> active# s mark X) (mark# pair(X1, X2) -> mark# X1, mark# s X -> mark# X) (mark# pair(X1, X2) -> mark# X1, mark# natsFrom X -> natsFrom# mark X) (mark# pair(X1, X2) -> mark# X1, mark# natsFrom X -> active# natsFrom mark X) (mark# pair(X1, X2) -> mark# X1, mark# natsFrom X -> mark# X) (mark# pair(X1, X2) -> mark# X1, mark# cons(X1, X2) -> cons#(mark X1, X2)) (mark# pair(X1, X2) -> mark# X1, mark# cons(X1, X2) -> active# cons(mark X1, X2)) (mark# pair(X1, X2) -> mark# X1, mark# cons(X1, X2) -> mark# X1) (mark# pair(X1, X2) -> mark# X1, mark# U31(X1, X2) -> U31#(mark X1, X2)) (mark# pair(X1, X2) -> mark# X1, mark# U31(X1, X2) -> active# U31(mark X1, X2)) (mark# pair(X1, X2) -> mark# X1, mark# U31(X1, X2) -> mark# X1) (mark# pair(X1, X2) -> mark# X1, mark# U21(X1, X2) -> U21#(mark X1, X2)) (mark# pair(X1, X2) -> mark# X1, mark# U21(X1, X2) -> active# U21(mark X1, X2)) (mark# pair(X1, X2) -> mark# X1, mark# U21(X1, X2) -> mark# X1) (mark# pair(X1, X2) -> mark# X1, mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (mark# pair(X1, X2) -> mark# X1, mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (mark# pair(X1, X2) -> mark# X1, mark# U11(X1, X2, X3) -> mark# X1) (mark# pair(X1, X2) -> mark# X1, mark# snd X -> snd# mark X) (mark# pair(X1, X2) -> mark# X1, mark# snd X -> active# snd mark X) (mark# pair(X1, X2) -> mark# X1, mark# snd X -> mark# X) (mark# pair(X1, X2) -> mark# X1, mark# tt() -> active# tt()) (mark# pair(X1, X2) -> mark# X1, mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (mark# pair(X1, X2) -> mark# X1, mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (mark# pair(X1, X2) -> mark# X1, mark# U101(X1, X2, X3) -> mark# X1) (mark# pair(X1, X2) -> mark# X1, mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (mark# pair(X1, X2) -> mark# X1, mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (mark# pair(X1, X2) -> mark# X1, mark# splitAt(X1, X2) -> mark# X2) (mark# pair(X1, X2) -> mark# X1, mark# splitAt(X1, X2) -> mark# X1) (mark# pair(X1, X2) -> mark# X1, mark# fst X -> active# fst mark X) (mark# pair(X1, X2) -> mark# X1, mark# fst X -> fst# mark X) (mark# pair(X1, X2) -> mark# X1, mark# fst X -> mark# X) (mark# U82(X1, X2) -> mark# X1, mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (mark# U82(X1, X2) -> mark# X1, mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (mark# U82(X1, X2) -> mark# X1, mark# sel(X1, X2) -> mark# X2) (mark# U82(X1, X2) -> mark# X1, mark# sel(X1, X2) -> mark# X1) (mark# U82(X1, X2) -> mark# X1, mark# 0() -> active# 0()) (mark# U82(X1, X2) -> mark# X1, mark# take(X1, X2) -> take#(mark X1, mark X2)) (mark# U82(X1, X2) -> mark# X1, mark# take(X1, X2) -> active# take(mark X1, mark X2)) (mark# U82(X1, X2) -> mark# X1, mark# take(X1, X2) -> mark# X2) (mark# U82(X1, X2) -> mark# X1, mark# take(X1, X2) -> mark# X1) (mark# U82(X1, X2) -> mark# X1, mark# tail X -> tail# mark X) (mark# U82(X1, X2) -> mark# X1, mark# tail X -> active# tail mark X) (mark# U82(X1, X2) -> mark# X1, mark# tail X -> mark# X) (mark# U82(X1, X2) -> mark# X1, mark# isPLNat X -> active# isPLNat X) (mark# U82(X1, X2) -> mark# X1, mark# isLNat X -> active# isLNat X) (mark# U82(X1, X2) -> mark# X1, mark# isNatural X -> active# isNatural X) (mark# U82(X1, X2) -> mark# X1, mark# and(X1, X2) -> and#(mark X1, X2)) (mark# U82(X1, X2) -> mark# X1, mark# and(X1, X2) -> active# and(mark X1, X2)) (mark# U82(X1, X2) -> mark# X1, mark# and(X1, X2) -> mark# X1) (mark# U82(X1, X2) -> mark# X1, mark# U91(X1, X2) -> U91#(mark X1, X2)) (mark# U82(X1, X2) -> mark# X1, mark# U91(X1, X2) -> active# U91(mark X1, X2)) (mark# U82(X1, X2) -> mark# X1, mark# U91(X1, X2) -> mark# X1) (mark# U82(X1, X2) -> mark# X1, mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (mark# U82(X1, X2) -> mark# X1, mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (mark# U82(X1, X2) -> mark# X1, mark# U81(X1, X2, X3, X4) -> mark# X1) (mark# U82(X1, X2) -> mark# X1, mark# U82(X1, X2) -> U82#(mark X1, X2)) (mark# U82(X1, X2) -> mark# X1, mark# U82(X1, X2) -> active# U82(mark X1, X2)) (mark# U82(X1, X2) -> mark# X1, mark# U82(X1, X2) -> mark# X1) (mark# U82(X1, X2) -> mark# X1, mark# U71(X1, X2) -> U71#(mark X1, X2)) (mark# U82(X1, X2) -> mark# X1, mark# U71(X1, X2) -> active# U71(mark X1, X2)) (mark# U82(X1, X2) -> mark# X1, mark# U71(X1, X2) -> mark# X1) (mark# U82(X1, X2) -> mark# X1, mark# nil() -> active# nil()) (mark# U82(X1, X2) -> mark# X1, mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (mark# U82(X1, X2) -> mark# X1, mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (mark# U82(X1, X2) -> mark# X1, mark# pair(X1, X2) -> mark# X2) (mark# U82(X1, X2) -> mark# X1, mark# pair(X1, X2) -> mark# X1) (mark# U82(X1, X2) -> mark# X1, mark# U61(X1, X2) -> U61#(mark X1, X2)) (mark# U82(X1, X2) -> mark# X1, mark# U61(X1, X2) -> active# U61(mark X1, X2)) (mark# U82(X1, X2) -> mark# X1, mark# U61(X1, X2) -> mark# X1) (mark# U82(X1, X2) -> mark# X1, mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (mark# U82(X1, X2) -> mark# X1, mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (mark# U82(X1, X2) -> mark# X1, mark# U51(X1, X2, X3) -> mark# X1) (mark# U82(X1, X2) -> mark# X1, mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (mark# U82(X1, X2) -> mark# X1, mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (mark# U82(X1, X2) -> mark# X1, mark# afterNth(X1, X2) -> mark# X2) (mark# U82(X1, X2) -> mark# X1, mark# afterNth(X1, X2) -> mark# X1) (mark# U82(X1, X2) -> mark# X1, mark# head X -> head# mark X) (mark# U82(X1, X2) -> mark# X1, mark# head X -> active# head mark X) (mark# U82(X1, X2) -> mark# X1, mark# head X -> mark# X) (mark# U82(X1, X2) -> mark# X1, mark# U41(X1, X2) -> U41#(mark X1, X2)) (mark# U82(X1, X2) -> mark# X1, mark# U41(X1, X2) -> active# U41(mark X1, X2)) (mark# U82(X1, X2) -> mark# X1, mark# U41(X1, X2) -> mark# X1) (mark# U82(X1, X2) -> mark# X1, mark# s X -> s# mark X) (mark# U82(X1, X2) -> mark# X1, mark# s X -> active# s mark X) (mark# U82(X1, X2) -> mark# X1, mark# s X -> mark# X) (mark# U82(X1, X2) -> mark# X1, mark# natsFrom X -> natsFrom# mark X) (mark# U82(X1, X2) -> mark# X1, mark# natsFrom X -> active# natsFrom mark X) (mark# U82(X1, X2) -> mark# X1, mark# natsFrom X -> mark# X) (mark# U82(X1, X2) -> mark# X1, mark# cons(X1, X2) -> cons#(mark X1, X2)) (mark# U82(X1, X2) -> mark# X1, mark# cons(X1, X2) -> active# cons(mark X1, X2)) (mark# U82(X1, X2) -> mark# X1, mark# cons(X1, X2) -> mark# X1) (mark# U82(X1, X2) -> mark# X1, mark# U31(X1, X2) -> U31#(mark X1, X2)) (mark# U82(X1, X2) -> mark# X1, mark# U31(X1, X2) -> active# U31(mark X1, X2)) (mark# U82(X1, X2) -> mark# X1, mark# U31(X1, X2) -> mark# X1) (mark# U82(X1, X2) -> mark# X1, mark# U21(X1, X2) -> U21#(mark X1, X2)) (mark# U82(X1, X2) -> mark# X1, mark# U21(X1, X2) -> active# U21(mark X1, X2)) (mark# U82(X1, X2) -> mark# X1, mark# U21(X1, X2) -> mark# X1) (mark# U82(X1, X2) -> mark# X1, mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (mark# U82(X1, X2) -> mark# X1, mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (mark# U82(X1, X2) -> mark# X1, mark# U11(X1, X2, X3) -> mark# X1) (mark# U82(X1, X2) -> mark# X1, mark# snd X -> snd# mark X) (mark# U82(X1, X2) -> mark# X1, mark# snd X -> active# snd mark X) (mark# U82(X1, X2) -> mark# X1, mark# snd X -> mark# X) (mark# U82(X1, X2) -> mark# X1, mark# tt() -> active# tt()) (mark# U82(X1, X2) -> mark# X1, mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (mark# U82(X1, X2) -> mark# X1, mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (mark# U82(X1, X2) -> mark# X1, mark# U101(X1, X2, X3) -> mark# X1) (mark# U82(X1, X2) -> mark# X1, mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (mark# U82(X1, X2) -> mark# X1, mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (mark# U82(X1, X2) -> mark# X1, mark# splitAt(X1, X2) -> mark# X2) (mark# U82(X1, X2) -> mark# X1, mark# splitAt(X1, X2) -> mark# X1) (mark# U82(X1, X2) -> mark# X1, mark# fst X -> active# fst mark X) (mark# U82(X1, X2) -> mark# X1, mark# fst X -> fst# mark X) (mark# U82(X1, X2) -> mark# X1, mark# fst X -> mark# X) (mark# U91(X1, X2) -> mark# X1, mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (mark# U91(X1, X2) -> mark# X1, mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (mark# U91(X1, X2) -> mark# X1, mark# sel(X1, X2) -> mark# X2) (mark# U91(X1, X2) -> mark# X1, mark# sel(X1, X2) -> mark# X1) (mark# U91(X1, X2) -> mark# X1, mark# 0() -> active# 0()) (mark# U91(X1, X2) -> mark# X1, mark# take(X1, X2) -> take#(mark X1, mark X2)) (mark# U91(X1, X2) -> mark# X1, mark# take(X1, X2) -> active# take(mark X1, mark X2)) (mark# U91(X1, X2) -> mark# X1, mark# take(X1, X2) -> mark# X2) (mark# U91(X1, X2) -> mark# X1, mark# take(X1, X2) -> mark# X1) (mark# U91(X1, X2) -> mark# X1, mark# tail X -> tail# mark X) (mark# U91(X1, X2) -> mark# X1, mark# tail X -> active# tail mark X) (mark# U91(X1, X2) -> mark# X1, mark# tail X -> mark# X) (mark# U91(X1, X2) -> mark# X1, mark# isPLNat X -> active# isPLNat X) (mark# 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mark# U82(X1, X2) -> mark# X1) (mark# U91(X1, X2) -> mark# X1, mark# U71(X1, X2) -> U71#(mark X1, X2)) (mark# U91(X1, X2) -> mark# X1, mark# U71(X1, X2) -> active# U71(mark X1, X2)) (mark# U91(X1, X2) -> mark# X1, mark# U71(X1, X2) -> mark# X1) (mark# U91(X1, X2) -> mark# X1, mark# nil() -> active# nil()) (mark# U91(X1, X2) -> mark# X1, mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (mark# U91(X1, X2) -> mark# X1, mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (mark# U91(X1, X2) -> mark# X1, mark# pair(X1, X2) -> mark# X2) (mark# U91(X1, X2) -> mark# X1, mark# pair(X1, X2) -> mark# X1) (mark# U91(X1, X2) -> mark# X1, mark# U61(X1, X2) -> U61#(mark X1, X2)) (mark# U91(X1, X2) -> mark# X1, mark# U61(X1, X2) -> active# U61(mark X1, X2)) (mark# U91(X1, X2) -> mark# X1, mark# U61(X1, X2) -> mark# X1) (mark# U91(X1, X2) -> mark# X1, mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (mark# U91(X1, X2) -> mark# X1, mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (mark# U91(X1, X2) -> mark# X1, mark# U51(X1, X2, X3) -> mark# X1) (mark# U91(X1, X2) -> mark# X1, mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (mark# U91(X1, X2) -> mark# X1, mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (mark# U91(X1, X2) -> mark# X1, mark# afterNth(X1, X2) -> mark# X2) (mark# U91(X1, X2) -> mark# X1, mark# afterNth(X1, X2) -> mark# X1) (mark# U91(X1, X2) -> mark# X1, mark# head X -> head# mark X) (mark# U91(X1, X2) -> mark# X1, mark# head X -> active# head mark X) (mark# U91(X1, X2) -> mark# X1, mark# head X -> mark# X) (mark# U91(X1, X2) -> mark# X1, mark# U41(X1, X2) -> U41#(mark X1, X2)) (mark# U91(X1, X2) -> mark# X1, mark# U41(X1, X2) -> active# U41(mark X1, X2)) (mark# U91(X1, X2) -> mark# X1, mark# U41(X1, X2) -> mark# X1) (mark# U91(X1, X2) -> mark# X1, mark# s X -> s# mark X) (mark# U91(X1, X2) -> mark# X1, mark# s X -> active# s mark X) (mark# U91(X1, X2) -> mark# X1, mark# s X -> mark# X) (mark# U91(X1, X2) -> mark# X1, mark# natsFrom X -> natsFrom# mark X) (mark# U91(X1, X2) -> mark# X1, mark# natsFrom X -> active# natsFrom mark X) (mark# U91(X1, X2) -> mark# X1, mark# natsFrom X -> mark# X) (mark# U91(X1, X2) -> mark# X1, mark# cons(X1, X2) -> cons#(mark X1, X2)) (mark# U91(X1, X2) -> mark# X1, mark# cons(X1, X2) -> active# cons(mark X1, X2)) (mark# U91(X1, X2) -> mark# X1, mark# cons(X1, X2) -> mark# X1) (mark# U91(X1, X2) -> mark# X1, mark# U31(X1, X2) -> U31#(mark X1, X2)) (mark# U91(X1, X2) -> mark# X1, mark# U31(X1, X2) -> active# U31(mark X1, X2)) (mark# U91(X1, X2) -> mark# X1, mark# U31(X1, X2) -> mark# X1) (mark# U91(X1, X2) -> mark# X1, mark# U21(X1, X2) -> U21#(mark X1, X2)) (mark# U91(X1, X2) -> mark# X1, mark# U21(X1, X2) -> active# U21(mark X1, X2)) (mark# U91(X1, X2) -> mark# X1, mark# U21(X1, X2) -> mark# X1) (mark# U91(X1, X2) -> mark# X1, mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (mark# U91(X1, X2) -> mark# X1, mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (mark# U91(X1, X2) -> mark# X1, mark# U11(X1, X2, X3) -> mark# X1) (mark# U91(X1, X2) -> mark# X1, mark# snd X -> snd# mark X) (mark# U91(X1, X2) -> mark# X1, mark# snd X -> active# snd mark X) (mark# U91(X1, X2) -> mark# X1, mark# snd X -> mark# X) (mark# U91(X1, X2) -> mark# X1, mark# tt() -> active# tt()) (mark# U91(X1, X2) -> mark# X1, mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (mark# U91(X1, X2) -> mark# X1, mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (mark# U91(X1, X2) -> mark# X1, mark# U101(X1, X2, X3) -> mark# X1) (mark# U91(X1, X2) -> mark# X1, mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (mark# U91(X1, X2) -> mark# X1, mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (mark# U91(X1, X2) -> mark# X1, mark# splitAt(X1, X2) -> mark# X2) (mark# U91(X1, X2) -> mark# X1, mark# splitAt(X1, X2) -> mark# X1) (mark# U91(X1, X2) -> mark# X1, mark# fst X -> active# fst mark X) (mark# U91(X1, X2) -> mark# X1, mark# fst X -> fst# mark X) (mark# U91(X1, X2) -> mark# X1, mark# fst X -> mark# X) (mark# take(X1, X2) -> mark# X1, mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (mark# take(X1, X2) -> mark# X1, mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (mark# take(X1, X2) -> mark# X1, mark# sel(X1, X2) -> mark# X2) (mark# take(X1, X2) -> mark# X1, mark# sel(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X1, mark# 0() -> active# 0()) (mark# take(X1, X2) -> mark# X1, mark# take(X1, X2) -> take#(mark X1, mark X2)) (mark# take(X1, X2) -> mark# X1, mark# take(X1, X2) -> active# take(mark X1, mark X2)) (mark# take(X1, X2) -> mark# X1, mark# take(X1, X2) -> mark# X2) (mark# take(X1, X2) -> mark# X1, mark# take(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X1, mark# tail X -> tail# mark X) (mark# take(X1, X2) -> mark# X1, mark# tail X -> active# tail mark X) (mark# take(X1, X2) -> mark# X1, mark# tail X -> mark# X) (mark# take(X1, X2) -> mark# X1, mark# isPLNat X -> active# isPLNat X) (mark# take(X1, X2) -> mark# X1, mark# isLNat X -> active# isLNat X) (mark# take(X1, X2) -> mark# X1, mark# isNatural X -> active# isNatural X) (mark# take(X1, X2) -> mark# X1, mark# and(X1, X2) -> and#(mark X1, X2)) (mark# take(X1, X2) -> mark# X1, mark# and(X1, X2) -> active# and(mark X1, X2)) (mark# take(X1, X2) -> mark# X1, mark# and(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X1, mark# U91(X1, X2) -> U91#(mark X1, X2)) (mark# take(X1, X2) -> mark# X1, mark# U91(X1, X2) -> active# U91(mark X1, X2)) (mark# take(X1, X2) -> mark# X1, mark# U91(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X1, mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (mark# take(X1, X2) -> mark# X1, mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (mark# take(X1, X2) -> mark# X1, mark# U81(X1, X2, X3, X4) -> mark# X1) (mark# take(X1, X2) -> mark# X1, mark# U82(X1, X2) -> U82#(mark X1, X2)) (mark# take(X1, X2) -> mark# X1, mark# U82(X1, X2) -> active# U82(mark X1, X2)) (mark# take(X1, X2) -> mark# X1, mark# U82(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X1, mark# U71(X1, X2) -> U71#(mark X1, X2)) (mark# take(X1, X2) -> mark# X1, mark# U71(X1, X2) -> active# U71(mark X1, X2)) (mark# take(X1, X2) -> mark# X1, mark# U71(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X1, mark# nil() -> active# nil()) (mark# take(X1, X2) -> mark# X1, mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (mark# take(X1, X2) -> mark# X1, mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (mark# take(X1, X2) -> mark# X1, mark# pair(X1, X2) -> mark# X2) (mark# take(X1, X2) -> mark# X1, mark# pair(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X1, mark# U61(X1, X2) -> U61#(mark X1, X2)) (mark# take(X1, X2) -> mark# X1, mark# U61(X1, X2) -> active# U61(mark X1, X2)) (mark# take(X1, X2) -> mark# X1, mark# U61(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X1, mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (mark# take(X1, X2) -> mark# X1, mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (mark# take(X1, X2) -> mark# X1, mark# U51(X1, X2, X3) -> mark# X1) (mark# take(X1, X2) -> mark# X1, mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (mark# take(X1, X2) -> mark# X1, mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (mark# take(X1, X2) -> mark# X1, mark# afterNth(X1, X2) -> mark# X2) (mark# take(X1, X2) -> mark# X1, mark# afterNth(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X1, mark# head X -> head# mark X) (mark# take(X1, X2) -> mark# X1, mark# head X -> active# head mark X) (mark# take(X1, X2) -> mark# X1, mark# head X -> mark# X) (mark# take(X1, X2) -> mark# X1, mark# U41(X1, X2) -> U41#(mark X1, X2)) (mark# take(X1, X2) -> mark# X1, mark# U41(X1, X2) -> active# U41(mark X1, X2)) (mark# take(X1, X2) -> mark# X1, mark# U41(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X1, mark# s X -> s# mark X) (mark# take(X1, X2) -> mark# X1, mark# s X -> active# s mark X) (mark# take(X1, X2) -> mark# X1, mark# s X -> mark# X) (mark# take(X1, X2) -> mark# X1, mark# natsFrom X -> natsFrom# mark X) (mark# take(X1, X2) -> mark# X1, mark# natsFrom X -> active# natsFrom mark X) (mark# take(X1, X2) -> mark# X1, mark# natsFrom X -> mark# X) (mark# take(X1, X2) -> mark# X1, mark# cons(X1, X2) -> cons#(mark X1, X2)) (mark# take(X1, X2) -> mark# X1, mark# cons(X1, X2) -> active# cons(mark X1, X2)) (mark# take(X1, X2) -> mark# X1, mark# cons(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X1, mark# U31(X1, X2) -> U31#(mark X1, X2)) (mark# take(X1, X2) -> mark# X1, mark# U31(X1, X2) -> active# U31(mark X1, X2)) (mark# take(X1, X2) -> mark# X1, mark# U31(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X1, mark# U21(X1, X2) -> U21#(mark X1, X2)) (mark# take(X1, X2) -> mark# X1, mark# U21(X1, X2) -> active# U21(mark X1, X2)) (mark# take(X1, X2) -> mark# X1, mark# U21(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X1, mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (mark# take(X1, X2) -> mark# X1, mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (mark# take(X1, X2) -> mark# X1, mark# U11(X1, X2, X3) -> mark# X1) (mark# take(X1, X2) -> mark# X1, mark# snd X -> snd# mark X) (mark# take(X1, X2) -> mark# X1, mark# snd X -> active# snd mark X) (mark# take(X1, X2) -> mark# X1, mark# snd X -> mark# X) (mark# take(X1, X2) -> mark# X1, mark# tt() -> active# tt()) (mark# take(X1, X2) -> mark# X1, mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (mark# take(X1, X2) -> mark# X1, mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (mark# take(X1, X2) -> mark# X1, mark# U101(X1, X2, X3) -> mark# X1) (mark# take(X1, X2) -> mark# X1, mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (mark# take(X1, X2) -> mark# X1, mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (mark# take(X1, X2) -> mark# X1, mark# splitAt(X1, X2) -> mark# X2) (mark# take(X1, X2) -> mark# X1, mark# splitAt(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X1, mark# fst X -> active# fst mark X) (mark# take(X1, X2) -> mark# X1, mark# fst X -> fst# mark X) (mark# take(X1, X2) -> mark# X1, mark# fst X -> mark# X) (active# U71(tt(), XS) -> pair#(nil(), XS), pair#(active X1, X2) -> pair#(X1, X2)) (active# U71(tt(), XS) -> pair#(nil(), XS), pair#(mark X1, X2) -> pair#(X1, X2)) (active# U71(tt(), XS) -> pair#(nil(), XS), pair#(X1, active X2) -> pair#(X1, X2)) (active# U71(tt(), XS) -> pair#(nil(), XS), pair#(X1, mark X2) -> pair#(X1, X2)) (mark# fst X -> mark# X, mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (mark# fst X -> mark# X, mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (mark# fst X -> mark# X, mark# sel(X1, X2) -> mark# X2) (mark# fst X -> mark# X, mark# sel(X1, X2) -> mark# X1) (mark# fst X -> mark# X, mark# 0() -> active# 0()) (mark# fst X -> mark# X, mark# take(X1, X2) -> take#(mark X1, mark X2)) (mark# fst X -> mark# X, mark# take(X1, X2) -> active# take(mark X1, mark X2)) (mark# fst X -> mark# X, mark# take(X1, X2) -> mark# X2) (mark# fst X -> mark# X, mark# take(X1, X2) -> mark# X1) (mark# fst X -> mark# X, mark# tail X -> tail# mark X) (mark# fst X -> mark# X, mark# tail X -> active# tail mark X) (mark# fst X -> mark# X, mark# tail X -> mark# X) (mark# fst X -> mark# X, mark# isPLNat X -> active# isPLNat X) (mark# fst X -> mark# X, mark# isLNat X -> active# isLNat X) (mark# fst X -> mark# X, mark# isNatural X -> active# isNatural X) (mark# fst X -> mark# X, mark# and(X1, X2) -> and#(mark X1, X2)) (mark# fst X -> mark# X, mark# and(X1, X2) -> active# and(mark X1, X2)) (mark# fst X -> mark# X, mark# and(X1, X2) -> mark# X1) (mark# fst X -> mark# X, mark# U91(X1, X2) -> U91#(mark X1, X2)) (mark# fst X -> mark# X, mark# U91(X1, X2) -> active# U91(mark X1, X2)) (mark# fst X -> mark# X, mark# U91(X1, X2) -> mark# X1) (mark# fst X -> mark# X, mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (mark# fst X -> mark# X, mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (mark# fst X -> mark# X, mark# U81(X1, X2, X3, X4) -> mark# X1) (mark# fst X -> mark# X, mark# U82(X1, X2) -> U82#(mark X1, X2)) (mark# fst X -> mark# X, mark# U82(X1, X2) -> active# U82(mark X1, X2)) (mark# fst X -> mark# X, mark# U82(X1, X2) -> mark# X1) (mark# fst X -> mark# X, mark# U71(X1, X2) -> U71#(mark X1, X2)) (mark# fst X -> mark# X, mark# U71(X1, X2) -> active# U71(mark X1, X2)) (mark# fst X -> mark# X, mark# U71(X1, X2) -> mark# X1) (mark# fst X -> mark# X, mark# nil() -> active# nil()) (mark# fst X -> mark# X, mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (mark# fst X -> mark# X, mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (mark# fst X -> mark# X, mark# pair(X1, X2) -> mark# X2) (mark# fst X -> mark# X, mark# pair(X1, X2) -> mark# X1) (mark# fst X -> mark# X, mark# U61(X1, X2) -> U61#(mark X1, X2)) (mark# fst X -> mark# X, mark# U61(X1, X2) -> active# U61(mark X1, X2)) (mark# fst X -> mark# X, mark# U61(X1, X2) -> mark# X1) (mark# fst X -> mark# X, mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (mark# fst X -> mark# X, mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (mark# fst X -> mark# X, mark# U51(X1, X2, X3) -> mark# X1) (mark# fst X -> mark# X, mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (mark# fst X -> mark# X, mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (mark# fst X -> mark# X, mark# afterNth(X1, X2) -> mark# X2) (mark# fst X -> mark# X, mark# afterNth(X1, X2) -> mark# X1) (mark# fst X -> mark# X, mark# head X -> head# mark X) (mark# fst X -> mark# X, mark# head X -> active# head mark X) (mark# fst X -> mark# X, mark# head X -> mark# X) (mark# fst X -> mark# X, mark# U41(X1, X2) -> U41#(mark X1, X2)) (mark# fst X -> mark# X, mark# U41(X1, X2) -> active# U41(mark X1, X2)) (mark# fst X -> mark# X, mark# U41(X1, X2) -> mark# X1) (mark# fst X -> mark# X, mark# s X -> s# mark X) (mark# fst X -> mark# X, mark# s X -> active# s mark X) (mark# fst X -> mark# X, mark# s X -> mark# X) (mark# fst X -> mark# X, mark# natsFrom X -> natsFrom# mark X) (mark# fst X -> mark# X, mark# natsFrom X -> active# natsFrom mark X) (mark# fst X -> mark# X, mark# natsFrom X -> mark# X) 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isLNat XS)) (mark# snd X -> active# snd mark X, active# splitAt(s N, cons(X, XS)) -> and#(isNatural N, and(isNatural X, isLNat XS))) (mark# snd X -> active# snd mark X, active# splitAt(s N, cons(X, XS)) -> U81#(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# snd X -> active# snd mark X, active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# snd X -> active# snd mark X, active# fst pair(X, Y) -> isLNat# Y) (mark# snd X -> active# snd mark X, active# fst pair(X, Y) -> isLNat# X) (mark# snd X -> active# snd mark X, active# fst pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# snd X -> active# snd mark X, active# fst pair(X, Y) -> U21#(and(isLNat X, isLNat Y), X)) (mark# snd X -> active# snd mark X, active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X)) (mark# s X -> active# s mark X, active# sel(N, XS) -> isLNat# XS) (mark# s X -> active# s mark X, active# sel(N, XS) -> isNatural# N) (mark# s X -> active# s mark X, active# sel(N, XS) -> and#(isNatural N, isLNat XS)) (mark# s X -> active# s mark X, active# sel(N, XS) -> U51#(and(isNatural N, isLNat XS), N, XS)) (mark# s X -> active# s mark X, active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS)) (mark# s X -> active# s mark X, active# take(N, XS) -> isLNat# XS) (mark# s X -> active# s mark X, active# take(N, XS) -> isNatural# N) (mark# s X -> active# s mark X, active# take(N, XS) -> and#(isNatural N, isLNat XS)) (mark# s X -> active# s mark X, active# take(N, XS) -> U101#(and(isNatural N, isLNat XS), N, XS)) (mark# s X -> active# s mark X, active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS)) (mark# s X -> active# s mark X, active# tail cons(N, XS) -> isLNat# XS) (mark# s X -> active# s mark X, active# tail cons(N, XS) -> isNatural# N) (mark# s X -> active# s mark X, active# tail cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# s X -> active# s mark X, active# tail cons(N, XS) -> U91#(and(isNatural N, isLNat XS), XS)) (mark# s X -> active# s mark X, active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS)) (mark# s X -> active# s mark X, active# isPLNat pair(V1, V2) -> isLNat# V2) (mark# s X -> active# s mark X, active# isPLNat pair(V1, V2) -> isLNat# V1) (mark# s X -> active# s mark X, active# isPLNat pair(V1, V2) -> and#(isLNat V1, isLNat V2)) (mark# s X -> active# s mark X, active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2)) (mark# s X -> active# s mark X, active# isPLNat splitAt(V1, V2) -> isLNat# V2) (mark# s X -> active# s mark X, active# isPLNat splitAt(V1, V2) -> isNatural# V1) (mark# s X -> active# s mark X, active# isPLNat splitAt(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# s X -> active# s mark X, active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# s X -> active# s mark X, active# isLNat take(V1, V2) -> isLNat# V2) (mark# s X -> active# s mark X, active# isLNat take(V1, V2) -> isNatural# V1) (mark# s X -> active# s mark X, active# isLNat take(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# s X -> active# s mark X, active# isLNat take(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# s X -> active# s mark X, active# isLNat tail V1 -> isLNat# V1) (mark# s X -> active# s mark X, active# isLNat tail V1 -> mark# isLNat V1) (mark# s X -> active# s mark X, active# isLNat nil() -> mark# tt()) (mark# s X -> active# s mark X, active# isLNat afterNth(V1, V2) -> isLNat# V2) (mark# s X -> active# s mark X, active# isLNat afterNth(V1, V2) -> isNatural# V1) (mark# s X -> active# s mark X, active# isLNat afterNth(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# s X -> active# s mark X, active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# s X -> active# s mark X, active# isLNat natsFrom V1 -> isNatural# V1) (mark# s X -> active# s mark X, active# isLNat natsFrom V1 -> mark# isNatural V1) (mark# s X -> active# s mark X, active# isLNat cons(V1, V2) -> isLNat# V2) (mark# s X -> active# s mark X, active# isLNat cons(V1, V2) -> isNatural# V1) (mark# s X -> active# s mark X, active# isLNat cons(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# s X -> active# s mark X, active# isLNat cons(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# s X -> active# s mark X, active# isLNat snd V1 -> isPLNat# V1) (mark# s X -> active# s mark X, active# isLNat snd V1 -> mark# isPLNat V1) (mark# s X -> active# s mark X, active# isLNat fst V1 -> isPLNat# V1) (mark# s X -> active# s mark X, active# isLNat fst V1 -> mark# isPLNat V1) (mark# s X -> active# s mark X, active# isNatural sel(V1, V2) -> isLNat# V2) (mark# s X -> active# s mark X, active# isNatural sel(V1, V2) -> isNatural# V1) (mark# s X -> active# s mark X, active# isNatural sel(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# s X -> active# s mark X, active# isNatural sel(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# s X -> active# s mark X, active# isNatural 0() -> mark# tt()) (mark# s X -> active# s mark X, active# isNatural head V1 -> isLNat# V1) (mark# s X -> active# s mark X, active# isNatural head V1 -> mark# isLNat V1) (mark# s X -> active# s mark X, active# isNatural s V1 -> isNatural# V1) (mark# s X -> active# s mark X, active# isNatural s V1 -> mark# isNatural V1) (mark# s X -> active# s mark X, active# and(tt(), X) -> mark# X) (mark# s X -> active# s mark X, active# U91(tt(), XS) -> mark# XS) (mark# s X -> active# s mark X, active# U81(tt(), N, X, XS) -> U82#(splitAt(N, XS), X)) (mark# s X -> active# s mark X, active# U81(tt(), N, X, XS) -> splitAt#(N, XS)) (mark# s X -> active# s mark X, active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X)) (mark# s X -> active# s mark X, active# U82(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS)) (mark# s X -> active# s mark X, active# U82(pair(YS, ZS), X) -> cons#(X, YS)) (mark# s X -> active# s mark X, active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS)) (mark# s X -> active# s mark X, active# U71(tt(), XS) -> pair#(nil(), XS)) (mark# s X -> active# s mark X, active# U71(tt(), XS) -> mark# pair(nil(), XS)) (mark# s X -> active# s mark X, active# U61(tt(), Y) -> mark# Y) (mark# s X -> active# s mark X, active# U51(tt(), N, XS) -> afterNth#(N, XS)) (mark# s X -> active# s mark X, active# U51(tt(), N, XS) -> head# afterNth(N, XS)) (mark# s X -> active# s mark X, active# U51(tt(), N, XS) -> mark# head afterNth(N, XS)) (mark# s X -> active# s mark X, active# afterNth(N, XS) -> isLNat# XS) (mark# s X -> active# s mark X, active# afterNth(N, XS) -> isNatural# N) (mark# s X -> active# s mark X, active# afterNth(N, XS) -> and#(isNatural N, isLNat XS)) (mark# s X -> active# s mark X, active# afterNth(N, XS) -> U11#(and(isNatural N, isLNat XS), N, XS)) (mark# s X -> active# s mark X, active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS)) (mark# s X -> active# s mark X, active# head cons(N, XS) -> isLNat# XS) (mark# s X -> active# s mark X, active# head cons(N, XS) -> isNatural# N) (mark# s X -> active# s mark X, active# head cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# s X -> active# s mark X, active# head cons(N, XS) -> U31#(and(isNatural N, isLNat XS), N)) (mark# s X -> active# s mark X, active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N)) (mark# s X -> active# s mark X, active# U41(tt(), N) -> s# N) (mark# s X -> active# s mark X, active# U41(tt(), N) -> natsFrom# s N) (mark# s X -> active# s mark X, active# U41(tt(), N) -> cons#(N, natsFrom s N)) (mark# s X -> active# s mark X, active# U41(tt(), N) -> mark# cons(N, natsFrom s N)) (mark# s X -> active# s mark X, active# natsFrom N -> isNatural# N) (mark# s X -> active# s mark X, active# natsFrom N -> U41#(isNatural N, N)) (mark# s X -> active# s mark X, active# natsFrom N -> mark# U41(isNatural N, N)) (mark# s X -> active# s mark X, active# U31(tt(), N) -> mark# N) (mark# s X -> active# s mark X, active# U21(tt(), X) -> mark# X) (mark# s X -> active# s mark X, active# U11(tt(), N, XS) -> snd# splitAt(N, XS)) (mark# s X -> active# s mark X, active# U11(tt(), N, XS) -> splitAt#(N, XS)) (mark# s X -> active# s mark X, active# U11(tt(), N, XS) -> mark# snd splitAt(N, XS)) (mark# s X -> active# s mark X, active# snd pair(X, Y) -> isLNat# Y) (mark# s X -> active# s mark X, active# snd pair(X, Y) -> isLNat# X) (mark# s X -> active# s mark X, active# snd pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# s X -> active# s mark X, active# snd pair(X, Y) -> U61#(and(isLNat X, isLNat Y), Y)) (mark# s X -> active# s mark X, active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y)) (mark# s X -> active# s mark X, active# U101(tt(), N, XS) -> splitAt#(N, XS)) (mark# s X -> active# s mark X, active# U101(tt(), N, XS) -> fst# splitAt(N, XS)) (mark# s X -> active# s mark X, active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS)) (mark# s X -> active# s mark X, active# splitAt(0(), XS) -> isLNat# XS) (mark# s X -> active# s mark X, active# splitAt(0(), XS) -> U71#(isLNat XS, XS)) (mark# s X -> active# s mark X, active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS)) (mark# s X -> active# s mark X, active# splitAt(s N, cons(X, XS)) -> isLNat# XS) (mark# s X -> active# s mark X, active# splitAt(s N, cons(X, XS)) -> isNatural# X) (mark# s X -> active# s mark X, active# splitAt(s N, cons(X, XS)) -> isNatural# N) (mark# s X -> active# s mark X, active# splitAt(s N, cons(X, XS)) -> and#(isNatural X, isLNat XS)) (mark# s X -> active# s mark X, active# splitAt(s N, cons(X, XS)) -> and#(isNatural N, and(isNatural X, isLNat XS))) (mark# s X -> active# s mark X, active# splitAt(s N, cons(X, XS)) -> U81#(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# s X -> active# s mark X, active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# s X -> active# s mark X, active# fst pair(X, Y) -> isLNat# Y) (mark# s X -> active# s mark X, active# fst pair(X, Y) -> isLNat# X) (mark# s X -> active# s mark X, active# fst pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# s X -> active# s mark X, active# fst pair(X, Y) -> U21#(and(isLNat X, isLNat Y), X)) (mark# s X -> active# s mark X, active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X)) (mark# tail X -> active# tail mark X, active# sel(N, XS) -> isLNat# XS) (mark# tail X -> active# tail mark X, active# sel(N, XS) -> isNatural# N) (mark# tail X -> active# tail mark X, active# sel(N, XS) -> and#(isNatural N, isLNat XS)) (mark# tail X -> active# tail mark X, active# sel(N, XS) -> U51#(and(isNatural N, isLNat XS), N, XS)) (mark# tail X -> active# tail mark X, active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS)) (mark# tail X -> active# tail mark X, active# take(N, XS) -> isLNat# XS) (mark# tail X -> active# tail mark X, active# take(N, XS) -> isNatural# N) (mark# tail X -> active# tail mark X, active# take(N, XS) -> and#(isNatural N, isLNat XS)) (mark# tail X -> active# tail mark X, active# take(N, XS) -> U101#(and(isNatural N, isLNat XS), N, XS)) (mark# tail X -> active# tail mark X, active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS)) (mark# tail X -> active# tail mark X, active# tail cons(N, XS) -> isLNat# XS) (mark# tail X -> active# tail mark X, active# tail cons(N, XS) -> isNatural# N) (mark# tail X -> active# tail mark X, active# tail cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# tail X -> active# tail mark X, active# tail cons(N, XS) -> U91#(and(isNatural N, isLNat XS), XS)) (mark# tail X -> active# tail mark X, active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS)) (mark# tail X -> active# tail mark X, active# isPLNat pair(V1, V2) -> isLNat# V2) (mark# tail X -> active# tail mark X, active# isPLNat pair(V1, V2) -> isLNat# V1) (mark# tail X -> active# tail mark X, active# isPLNat pair(V1, V2) -> and#(isLNat V1, isLNat V2)) (mark# tail X -> active# tail mark X, active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2)) (mark# tail X -> active# tail mark X, active# isPLNat splitAt(V1, V2) -> isLNat# V2) (mark# tail X -> active# tail mark X, active# isPLNat splitAt(V1, V2) -> isNatural# V1) (mark# tail X -> active# tail mark X, active# isPLNat splitAt(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# tail X -> active# tail mark X, active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# tail X -> active# tail mark X, active# isLNat take(V1, V2) -> isLNat# V2) (mark# tail X -> active# tail mark X, active# isLNat take(V1, V2) -> isNatural# V1) (mark# tail X -> active# tail mark X, active# isLNat take(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# tail X -> active# tail mark X, active# isLNat take(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# tail X -> active# tail mark X, active# isLNat tail V1 -> isLNat# V1) (mark# tail X -> active# tail mark X, active# isLNat tail V1 -> mark# isLNat V1) (mark# tail X -> active# tail mark X, active# isLNat nil() -> mark# tt()) (mark# tail X -> active# tail mark X, active# isLNat afterNth(V1, V2) -> isLNat# V2) (mark# tail X -> active# tail mark X, active# isLNat afterNth(V1, V2) -> isNatural# V1) (mark# tail X -> active# tail mark X, active# isLNat afterNth(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# tail X -> active# tail mark X, active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# tail X -> active# tail mark X, active# isLNat natsFrom V1 -> isNatural# V1) (mark# tail X -> active# tail mark X, active# isLNat natsFrom V1 -> mark# isNatural V1) (mark# tail X -> active# tail mark X, active# isLNat cons(V1, V2) -> isLNat# V2) (mark# tail X -> active# tail mark X, active# isLNat cons(V1, V2) -> isNatural# V1) (mark# tail X -> active# tail mark X, active# isLNat cons(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# tail X -> active# tail mark X, active# isLNat cons(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# tail X -> active# tail mark X, active# isLNat snd V1 -> isPLNat# V1) (mark# tail X -> active# tail mark X, active# isLNat snd V1 -> mark# isPLNat V1) (mark# tail X -> active# tail mark X, active# isLNat fst V1 -> isPLNat# V1) (mark# tail X -> active# tail mark X, active# isLNat fst V1 -> mark# isPLNat V1) (mark# tail X -> active# tail mark X, active# isNatural sel(V1, V2) -> isLNat# V2) (mark# tail X -> active# tail mark X, active# isNatural sel(V1, V2) -> isNatural# V1) (mark# tail X -> active# tail mark X, active# isNatural sel(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# tail X -> active# tail mark X, active# isNatural sel(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# tail X -> active# tail mark X, active# isNatural 0() -> mark# tt()) (mark# tail X -> active# tail mark X, active# isNatural head V1 -> isLNat# V1) (mark# tail X -> active# tail mark X, active# isNatural head V1 -> mark# isLNat V1) (mark# tail X -> active# tail mark X, active# isNatural s V1 -> isNatural# V1) (mark# tail X -> active# tail mark X, active# isNatural s V1 -> mark# isNatural V1) (mark# tail X -> active# tail mark X, active# and(tt(), X) -> mark# X) (mark# tail X -> active# tail mark X, active# U91(tt(), XS) -> mark# XS) (mark# tail X -> active# tail mark X, active# U81(tt(), N, X, XS) -> U82#(splitAt(N, XS), X)) (mark# tail X -> active# tail mark X, active# U81(tt(), N, X, XS) -> splitAt#(N, XS)) (mark# tail X -> active# tail mark X, active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X)) (mark# tail X -> active# tail mark X, active# U82(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS)) (mark# tail X -> active# tail mark X, active# U82(pair(YS, ZS), X) -> cons#(X, YS)) (mark# tail X -> active# tail mark X, active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS)) (mark# tail X -> active# tail mark X, active# U71(tt(), XS) -> pair#(nil(), XS)) (mark# tail X -> active# tail mark X, active# U71(tt(), XS) -> mark# pair(nil(), XS)) (mark# tail X -> active# tail mark X, active# U61(tt(), Y) -> mark# Y) (mark# tail X -> active# tail mark X, active# U51(tt(), N, XS) -> afterNth#(N, XS)) (mark# 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X2)) (mark# splitAt(X1, X2) -> mark# X2, mark# U21(X1, X2) -> mark# X1) (mark# splitAt(X1, X2) -> mark# X2, mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (mark# splitAt(X1, X2) -> mark# X2, mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (mark# splitAt(X1, X2) -> mark# X2, mark# U11(X1, X2, X3) -> mark# X1) (mark# splitAt(X1, X2) -> mark# X2, mark# snd X -> snd# mark X) (mark# splitAt(X1, X2) -> mark# X2, mark# snd X -> active# snd mark X) (mark# splitAt(X1, X2) -> mark# X2, mark# snd X -> mark# X) (mark# splitAt(X1, X2) -> mark# X2, mark# tt() -> active# tt()) (mark# splitAt(X1, X2) -> mark# X2, mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (mark# splitAt(X1, X2) -> mark# X2, mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (mark# splitAt(X1, X2) -> mark# X2, mark# U101(X1, X2, X3) -> mark# X1) (mark# splitAt(X1, X2) -> mark# X2, mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (mark# splitAt(X1, X2) -> mark# X2, mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (mark# splitAt(X1, X2) -> mark# X2, mark# splitAt(X1, X2) -> mark# X2) (mark# splitAt(X1, X2) -> mark# X2, mark# splitAt(X1, X2) -> mark# X1) (mark# splitAt(X1, X2) -> mark# X2, mark# fst X -> active# fst mark X) (mark# splitAt(X1, X2) -> mark# X2, mark# fst X -> fst# mark X) (mark# splitAt(X1, X2) -> mark# X2, mark# fst X -> mark# X) (mark# pair(X1, X2) -> mark# X2, mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (mark# pair(X1, X2) -> mark# X2, mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (mark# pair(X1, X2) -> mark# X2, mark# sel(X1, X2) -> mark# X2) (mark# pair(X1, X2) -> mark# X2, mark# sel(X1, X2) -> mark# X1) (mark# pair(X1, X2) -> mark# X2, mark# 0() -> active# 0()) (mark# pair(X1, X2) -> mark# X2, mark# take(X1, X2) -> take#(mark X1, mark X2)) (mark# pair(X1, X2) -> mark# X2, mark# take(X1, X2) -> active# take(mark X1, mark X2)) (mark# pair(X1, X2) -> mark# X2, mark# take(X1, X2) -> mark# X2) (mark# pair(X1, X2) -> mark# X2, mark# take(X1, X2) -> mark# X1) (mark# pair(X1, X2) -> mark# X2, mark# tail X -> tail# mark X) (mark# pair(X1, X2) -> mark# X2, mark# tail X -> active# tail mark X) (mark# pair(X1, X2) -> mark# X2, mark# tail X -> mark# X) (mark# pair(X1, X2) -> mark# X2, mark# isPLNat X -> active# isPLNat X) (mark# pair(X1, X2) -> mark# X2, mark# isLNat X -> active# isLNat X) (mark# pair(X1, X2) -> mark# X2, mark# isNatural X -> active# isNatural X) (mark# pair(X1, X2) -> mark# X2, mark# and(X1, X2) -> and#(mark X1, X2)) (mark# pair(X1, X2) -> mark# X2, mark# and(X1, X2) -> active# and(mark X1, X2)) (mark# pair(X1, X2) -> mark# X2, mark# and(X1, X2) -> mark# X1) (mark# pair(X1, X2) -> mark# X2, mark# U91(X1, X2) -> U91#(mark X1, X2)) (mark# pair(X1, X2) -> mark# X2, mark# U91(X1, X2) -> active# U91(mark X1, X2)) (mark# pair(X1, X2) -> mark# X2, mark# U91(X1, X2) -> mark# X1) (mark# pair(X1, X2) -> mark# X2, mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (mark# pair(X1, X2) -> mark# X2, mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (mark# pair(X1, X2) -> mark# X2, mark# U81(X1, X2, X3, X4) -> mark# X1) (mark# pair(X1, X2) -> mark# X2, mark# U82(X1, X2) -> U82#(mark X1, X2)) (mark# pair(X1, X2) -> mark# X2, mark# U82(X1, X2) -> active# U82(mark X1, X2)) (mark# pair(X1, X2) -> mark# X2, mark# U82(X1, X2) -> mark# X1) (mark# pair(X1, X2) -> mark# X2, mark# U71(X1, X2) -> U71#(mark X1, X2)) (mark# pair(X1, X2) -> mark# X2, mark# U71(X1, X2) -> active# U71(mark X1, X2)) (mark# pair(X1, X2) -> mark# X2, mark# U71(X1, X2) -> mark# X1) (mark# pair(X1, X2) -> mark# X2, mark# nil() -> active# nil()) (mark# pair(X1, X2) -> mark# X2, mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (mark# pair(X1, X2) -> mark# X2, mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (mark# pair(X1, X2) -> mark# X2, mark# pair(X1, X2) -> mark# X2) (mark# pair(X1, X2) -> mark# X2, mark# pair(X1, X2) -> mark# X1) (mark# pair(X1, X2) -> mark# X2, mark# U61(X1, X2) -> U61#(mark X1, X2)) (mark# pair(X1, X2) -> mark# X2, mark# U61(X1, X2) -> active# U61(mark X1, X2)) (mark# pair(X1, X2) -> mark# X2, mark# U61(X1, X2) -> mark# X1) (mark# pair(X1, X2) -> mark# X2, mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (mark# pair(X1, X2) -> mark# X2, mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (mark# pair(X1, X2) -> mark# X2, mark# U51(X1, X2, X3) -> mark# X1) (mark# pair(X1, X2) -> mark# X2, mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (mark# pair(X1, X2) -> mark# X2, mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (mark# pair(X1, X2) -> mark# X2, mark# afterNth(X1, X2) -> mark# X2) (mark# pair(X1, X2) -> mark# X2, mark# afterNth(X1, X2) -> mark# X1) (mark# pair(X1, X2) -> mark# X2, mark# head X -> head# mark X) (mark# pair(X1, X2) -> mark# X2, mark# head X -> active# head mark X) (mark# pair(X1, X2) -> mark# X2, mark# head X -> mark# X) (mark# pair(X1, X2) -> mark# X2, mark# U41(X1, X2) -> U41#(mark X1, X2)) (mark# pair(X1, X2) -> mark# X2, mark# U41(X1, X2) -> active# U41(mark X1, X2)) (mark# pair(X1, X2) -> mark# X2, mark# U41(X1, X2) -> mark# X1) (mark# pair(X1, X2) -> mark# X2, mark# s X -> s# mark X) (mark# pair(X1, X2) -> mark# X2, mark# s X -> active# s mark X) (mark# pair(X1, X2) -> mark# X2, mark# s X -> mark# X) (mark# pair(X1, X2) -> mark# X2, mark# natsFrom X -> natsFrom# mark X) (mark# pair(X1, X2) -> mark# X2, mark# natsFrom X -> active# natsFrom mark X) (mark# pair(X1, X2) -> mark# X2, mark# natsFrom X -> mark# X) (mark# pair(X1, X2) -> mark# X2, mark# cons(X1, X2) -> cons#(mark X1, X2)) (mark# pair(X1, X2) -> mark# X2, mark# cons(X1, X2) -> active# cons(mark X1, X2)) (mark# pair(X1, X2) -> mark# X2, mark# cons(X1, X2) -> mark# X1) (mark# pair(X1, X2) -> mark# X2, mark# U31(X1, X2) -> U31#(mark X1, X2)) (mark# pair(X1, X2) -> mark# X2, mark# U31(X1, X2) -> active# U31(mark X1, X2)) (mark# pair(X1, X2) -> mark# X2, mark# U31(X1, X2) -> mark# X1) (mark# pair(X1, X2) -> mark# X2, mark# U21(X1, X2) -> U21#(mark X1, X2)) (mark# pair(X1, X2) -> mark# X2, mark# U21(X1, X2) -> active# U21(mark X1, X2)) (mark# pair(X1, X2) -> mark# X2, mark# U21(X1, X2) -> mark# X1) (mark# pair(X1, X2) -> mark# X2, mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (mark# pair(X1, X2) -> mark# X2, mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (mark# pair(X1, X2) -> mark# X2, mark# U11(X1, X2, X3) -> mark# X1) (mark# pair(X1, X2) -> mark# X2, mark# snd X -> snd# mark X) (mark# pair(X1, X2) -> mark# X2, mark# snd X -> active# snd mark X) (mark# pair(X1, X2) -> mark# X2, mark# snd X -> mark# X) (mark# pair(X1, X2) -> mark# X2, mark# tt() -> active# tt()) (mark# pair(X1, X2) -> mark# X2, mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (mark# pair(X1, X2) -> mark# X2, mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (mark# pair(X1, X2) -> mark# X2, mark# U101(X1, X2, X3) -> mark# X1) (mark# pair(X1, X2) -> mark# X2, mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (mark# pair(X1, X2) -> mark# X2, mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (mark# pair(X1, X2) -> mark# X2, mark# splitAt(X1, X2) -> mark# X2) (mark# pair(X1, X2) -> mark# X2, mark# splitAt(X1, X2) -> mark# X1) (mark# pair(X1, X2) -> mark# X2, mark# fst X -> active# fst mark X) (mark# pair(X1, X2) -> mark# X2, mark# fst X -> fst# mark X) (mark# pair(X1, X2) -> mark# X2, mark# fst X -> mark# X) (mark# sel(X1, X2) -> mark# X2, mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (mark# sel(X1, X2) -> mark# X2, mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (mark# sel(X1, X2) -> mark# X2, mark# sel(X1, X2) -> mark# X2) (mark# sel(X1, X2) -> mark# X2, mark# sel(X1, X2) -> mark# X1) (mark# sel(X1, X2) -> mark# X2, mark# 0() -> active# 0()) (mark# sel(X1, X2) -> mark# X2, mark# take(X1, X2) -> take#(mark X1, mark X2)) (mark# sel(X1, X2) -> mark# X2, mark# take(X1, X2) -> active# take(mark X1, mark X2)) (mark# sel(X1, X2) -> mark# X2, mark# take(X1, X2) -> mark# X2) (mark# sel(X1, X2) -> mark# X2, mark# take(X1, X2) -> mark# X1) (mark# sel(X1, X2) -> mark# X2, mark# tail X -> tail# mark X) (mark# sel(X1, X2) -> mark# X2, mark# tail X -> active# tail mark X) (mark# sel(X1, X2) -> mark# X2, mark# tail X -> mark# X) (mark# sel(X1, X2) -> mark# X2, mark# isPLNat X -> active# isPLNat X) (mark# sel(X1, X2) -> mark# X2, mark# isLNat X -> active# isLNat X) (mark# sel(X1, X2) -> mark# X2, mark# isNatural X -> active# isNatural X) (mark# sel(X1, X2) -> mark# X2, mark# and(X1, X2) -> and#(mark X1, X2)) (mark# sel(X1, X2) -> mark# X2, mark# and(X1, X2) -> active# and(mark X1, X2)) (mark# sel(X1, X2) -> mark# X2, mark# and(X1, X2) -> mark# X1) (mark# sel(X1, X2) -> mark# X2, mark# U91(X1, X2) -> U91#(mark X1, X2)) (mark# sel(X1, X2) -> mark# X2, mark# U91(X1, X2) -> active# U91(mark X1, X2)) (mark# sel(X1, X2) -> mark# X2, mark# U91(X1, X2) -> mark# X1) (mark# sel(X1, X2) -> mark# X2, mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (mark# sel(X1, X2) -> mark# X2, mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (mark# sel(X1, X2) -> mark# X2, mark# U81(X1, X2, X3, X4) -> mark# X1) (mark# sel(X1, X2) -> mark# X2, mark# U82(X1, X2) -> U82#(mark X1, X2)) (mark# sel(X1, X2) -> mark# X2, mark# U82(X1, X2) -> active# U82(mark X1, X2)) (mark# sel(X1, X2) -> mark# X2, mark# U82(X1, X2) -> mark# X1) (mark# sel(X1, X2) -> mark# X2, mark# U71(X1, X2) -> U71#(mark X1, X2)) (mark# sel(X1, X2) -> mark# X2, mark# U71(X1, X2) -> active# U71(mark X1, X2)) (mark# sel(X1, X2) -> mark# X2, mark# U71(X1, X2) -> mark# X1) (mark# sel(X1, X2) -> mark# X2, mark# nil() -> active# nil()) (mark# sel(X1, X2) -> mark# X2, mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (mark# sel(X1, X2) -> mark# X2, mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (mark# sel(X1, X2) -> mark# X2, mark# pair(X1, X2) -> mark# X2) (mark# sel(X1, X2) -> mark# X2, mark# pair(X1, X2) -> mark# X1) (mark# sel(X1, X2) -> mark# X2, mark# U61(X1, X2) -> U61#(mark X1, X2)) (mark# sel(X1, X2) -> mark# X2, mark# U61(X1, X2) -> active# U61(mark X1, X2)) (mark# sel(X1, X2) -> mark# X2, mark# U61(X1, X2) -> mark# X1) (mark# sel(X1, X2) -> mark# X2, mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (mark# sel(X1, X2) -> mark# X2, mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (mark# sel(X1, X2) -> mark# X2, mark# U51(X1, X2, X3) -> mark# X1) (mark# sel(X1, X2) -> mark# X2, mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (mark# sel(X1, X2) -> mark# X2, mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (mark# sel(X1, X2) -> mark# X2, mark# afterNth(X1, X2) -> mark# X2) (mark# sel(X1, X2) -> mark# X2, mark# afterNth(X1, X2) -> mark# X1) (mark# sel(X1, X2) -> mark# X2, mark# head X -> head# mark X) (mark# sel(X1, X2) -> mark# X2, mark# head X -> active# head mark X) (mark# sel(X1, X2) -> mark# X2, mark# head X -> mark# X) (mark# sel(X1, X2) -> mark# X2, mark# U41(X1, X2) -> U41#(mark X1, X2)) (mark# sel(X1, X2) -> mark# X2, mark# U41(X1, X2) -> active# U41(mark X1, X2)) (mark# sel(X1, X2) -> mark# X2, mark# U41(X1, X2) -> mark# X1) (mark# sel(X1, X2) -> mark# X2, mark# s X -> s# mark X) (mark# sel(X1, X2) -> mark# X2, mark# s X -> active# s mark X) (mark# sel(X1, X2) -> mark# X2, mark# s X -> mark# X) (mark# sel(X1, X2) -> mark# X2, mark# natsFrom X -> natsFrom# mark X) (mark# sel(X1, X2) -> mark# X2, mark# natsFrom X -> active# natsFrom mark X) (mark# sel(X1, X2) -> mark# X2, mark# natsFrom X -> mark# X) (mark# sel(X1, X2) -> mark# X2, mark# cons(X1, X2) -> cons#(mark X1, X2)) (mark# sel(X1, X2) -> mark# X2, mark# cons(X1, X2) -> active# cons(mark X1, X2)) (mark# sel(X1, X2) -> mark# X2, mark# cons(X1, X2) -> mark# X1) (mark# sel(X1, X2) -> mark# X2, mark# U31(X1, X2) -> U31#(mark X1, X2)) (mark# sel(X1, X2) -> mark# X2, mark# U31(X1, X2) -> active# U31(mark X1, X2)) (mark# sel(X1, X2) -> mark# X2, mark# U31(X1, X2) -> mark# X1) (mark# sel(X1, X2) -> mark# X2, mark# U21(X1, X2) -> U21#(mark X1, X2)) (mark# sel(X1, X2) -> mark# X2, mark# U21(X1, X2) -> active# U21(mark X1, X2)) (mark# sel(X1, X2) -> mark# X2, mark# U21(X1, X2) -> mark# X1) (mark# sel(X1, X2) -> mark# X2, mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (mark# sel(X1, X2) -> mark# X2, mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (mark# sel(X1, X2) -> mark# X2, mark# U11(X1, X2, X3) -> mark# X1) (mark# sel(X1, X2) -> mark# X2, mark# snd X -> snd# mark X) (mark# sel(X1, X2) -> mark# X2, mark# snd X -> active# snd mark X) (mark# sel(X1, X2) -> mark# X2, mark# snd X -> mark# X) (mark# sel(X1, X2) -> mark# X2, mark# tt() -> active# tt()) (mark# sel(X1, X2) -> mark# X2, mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (mark# sel(X1, X2) -> mark# X2, mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (mark# sel(X1, X2) -> mark# X2, mark# U101(X1, X2, X3) -> mark# X1) (mark# sel(X1, X2) -> mark# X2, mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (mark# sel(X1, X2) -> mark# X2, mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (mark# sel(X1, X2) -> mark# X2, mark# splitAt(X1, X2) -> mark# X2) (mark# sel(X1, X2) -> mark# X2, mark# splitAt(X1, X2) -> mark# X1) (mark# sel(X1, X2) -> mark# X2, mark# fst X -> active# fst mark X) (mark# sel(X1, X2) -> mark# X2, mark# fst X -> fst# mark X) (mark# sel(X1, X2) -> mark# X2, mark# fst X -> mark# X) (active# tail cons(N, XS) -> U91#(and(isNatural N, isLNat XS), XS), U91#(active X1, X2) -> U91#(X1, X2)) (active# tail cons(N, XS) -> U91#(and(isNatural N, isLNat XS), XS), U91#(mark X1, X2) -> U91#(X1, X2)) (active# tail cons(N, XS) -> U91#(and(isNatural N, isLNat XS), XS), U91#(X1, active X2) -> U91#(X1, X2)) (active# tail cons(N, XS) -> U91#(and(isNatural N, isLNat XS), XS), U91#(X1, mark X2) -> U91#(X1, X2)) (active# U101(tt(), N, XS) -> splitAt#(N, XS), splitAt#(active X1, X2) -> splitAt#(X1, X2)) (active# U101(tt(), N, XS) -> splitAt#(N, XS), splitAt#(mark X1, X2) -> splitAt#(X1, X2)) (active# U101(tt(), N, XS) -> splitAt#(N, XS), splitAt#(X1, active X2) -> splitAt#(X1, X2)) (active# U101(tt(), N, XS) -> splitAt#(N, XS), splitAt#(X1, mark X2) -> splitAt#(X1, X2)) (active# U51(tt(), N, XS) -> afterNth#(N, XS), afterNth#(active X1, X2) -> afterNth#(X1, X2)) (active# U51(tt(), N, XS) -> afterNth#(N, XS), afterNth#(mark X1, X2) -> afterNth#(X1, X2)) (active# U51(tt(), N, XS) -> afterNth#(N, XS), afterNth#(X1, active X2) -> afterNth#(X1, X2)) (active# U51(tt(), N, XS) -> afterNth#(N, XS), afterNth#(X1, mark X2) -> afterNth#(X1, X2)) (active# isNatural s V1 -> isNatural# V1, isNatural# active X -> isNatural# X) (active# isNatural s V1 -> isNatural# V1, isNatural# mark X -> isNatural# X) (active# isNatural sel(V1, V2) -> isNatural# V1, isNatural# active X -> isNatural# X) (active# isNatural sel(V1, V2) -> isNatural# V1, isNatural# mark X -> isNatural# X) (active# isLNat snd V1 -> isPLNat# V1, isPLNat# active X -> isPLNat# X) (active# isLNat snd V1 -> isPLNat# V1, isPLNat# mark X -> isPLNat# X) (active# isLNat natsFrom V1 -> isNatural# V1, isNatural# active X -> isNatural# X) (active# isLNat natsFrom V1 -> isNatural# V1, isNatural# mark X -> isNatural# X) (active# isLNat tail V1 -> isLNat# V1, isLNat# active X -> isLNat# X) (active# isLNat tail V1 -> isLNat# V1, isLNat# mark X -> isLNat# X) (active# isPLNat splitAt(V1, V2) -> isNatural# V1, isNatural# active X -> isNatural# X) (active# isPLNat splitAt(V1, V2) -> isNatural# V1, isNatural# mark X -> isNatural# X) (mark# U21(X1, X2) -> U21#(mark X1, X2), U21#(active X1, X2) -> U21#(X1, X2)) (mark# U21(X1, X2) -> U21#(mark X1, X2), U21#(mark X1, X2) -> U21#(X1, X2)) (mark# U21(X1, X2) -> U21#(mark X1, X2), U21#(X1, active X2) -> U21#(X1, X2)) (mark# U21(X1, X2) -> U21#(mark X1, X2), U21#(X1, mark X2) -> U21#(X1, X2)) (mark# cons(X1, X2) -> cons#(mark X1, X2), cons#(active X1, X2) -> cons#(X1, X2)) (mark# cons(X1, X2) -> cons#(mark X1, X2), cons#(mark X1, X2) -> cons#(X1, X2)) (mark# cons(X1, X2) -> cons#(mark X1, X2), cons#(X1, active X2) -> cons#(X1, X2)) (mark# cons(X1, X2) -> cons#(mark X1, X2), cons#(X1, mark X2) -> cons#(X1, X2)) (mark# U61(X1, X2) -> U61#(mark X1, X2), U61#(active X1, X2) -> U61#(X1, X2)) (mark# U61(X1, X2) -> U61#(mark X1, X2), U61#(mark X1, X2) -> U61#(X1, X2)) (mark# U61(X1, X2) -> U61#(mark X1, X2), U61#(X1, active X2) -> U61#(X1, X2)) (mark# U61(X1, X2) -> U61#(mark X1, X2), U61#(X1, mark X2) -> U61#(X1, X2)) (mark# U82(X1, X2) -> U82#(mark X1, X2), U82#(active X1, X2) -> U82#(X1, X2)) (mark# U82(X1, X2) -> U82#(mark X1, X2), U82#(mark X1, X2) -> U82#(X1, X2)) (mark# U82(X1, X2) -> U82#(mark X1, X2), U82#(X1, active X2) -> U82#(X1, X2)) (mark# U82(X1, X2) -> U82#(mark X1, X2), U82#(X1, mark X2) -> U82#(X1, X2)) (mark# and(X1, X2) -> and#(mark X1, X2), and#(active X1, X2) -> and#(X1, X2)) (mark# and(X1, X2) -> and#(mark X1, X2), and#(mark X1, X2) -> and#(X1, X2)) (mark# and(X1, X2) -> and#(mark X1, X2), and#(X1, active X2) -> and#(X1, X2)) (mark# and(X1, X2) -> and#(mark X1, X2), and#(X1, mark X2) -> and#(X1, X2)) (active# isNatural s V1 -> mark# isNatural V1, mark# sel(X1, X2) -> 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-> active# isPLNat X) (active# isNatural s V1 -> mark# isNatural V1, mark# isLNat X -> active# isLNat X) (active# isNatural s V1 -> mark# isNatural V1, mark# isNatural X -> active# isNatural X) (active# isNatural s V1 -> mark# isNatural V1, mark# and(X1, X2) -> and#(mark X1, X2)) (active# isNatural s V1 -> mark# isNatural V1, mark# and(X1, X2) -> active# and(mark X1, X2)) (active# isNatural s V1 -> mark# isNatural V1, mark# and(X1, X2) -> mark# X1) (active# isNatural s V1 -> mark# isNatural V1, mark# U91(X1, X2) -> U91#(mark X1, X2)) (active# isNatural s V1 -> mark# isNatural V1, mark# U91(X1, X2) -> active# U91(mark X1, X2)) (active# isNatural s V1 -> mark# isNatural V1, mark# U91(X1, X2) -> mark# X1) (active# isNatural s V1 -> mark# isNatural V1, mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (active# isNatural s V1 -> mark# isNatural V1, mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (active# isNatural s V1 -> mark# isNatural V1, mark# U81(X1, X2, X3, X4) -> mark# X1) (active# isNatural s V1 -> mark# isNatural V1, mark# U82(X1, X2) -> U82#(mark X1, X2)) (active# isNatural s V1 -> mark# isNatural V1, mark# U82(X1, X2) -> active# U82(mark X1, X2)) (active# isNatural s V1 -> mark# isNatural V1, mark# U82(X1, X2) -> mark# X1) (active# isNatural s V1 -> mark# isNatural V1, mark# U71(X1, X2) -> U71#(mark X1, X2)) (active# isNatural s V1 -> mark# isNatural V1, mark# U71(X1, X2) -> active# U71(mark X1, X2)) (active# isNatural s V1 -> mark# isNatural V1, mark# U71(X1, X2) -> mark# X1) (active# isNatural s V1 -> mark# isNatural V1, mark# nil() -> active# nil()) (active# isNatural s V1 -> mark# isNatural V1, mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (active# isNatural s V1 -> mark# isNatural V1, mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (active# isNatural s V1 -> mark# isNatural V1, mark# pair(X1, X2) -> mark# X2) (active# isNatural s V1 -> mark# isNatural V1, mark# pair(X1, X2) -> mark# X1) (active# isNatural s V1 -> mark# isNatural 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mark# head X -> active# head mark X) (active# isNatural s V1 -> mark# isNatural V1, mark# head X -> mark# X) (active# isNatural s V1 -> mark# isNatural V1, mark# U41(X1, X2) -> U41#(mark X1, X2)) (active# isNatural s V1 -> mark# isNatural V1, mark# U41(X1, X2) -> active# U41(mark X1, X2)) (active# isNatural s V1 -> mark# isNatural V1, mark# U41(X1, X2) -> mark# X1) (active# isNatural s V1 -> mark# isNatural V1, mark# s X -> s# mark X) (active# isNatural s V1 -> mark# isNatural V1, mark# s X -> active# s mark X) (active# isNatural s V1 -> mark# isNatural V1, mark# s X -> mark# X) (active# isNatural s V1 -> mark# isNatural V1, mark# natsFrom X -> natsFrom# mark X) (active# isNatural s V1 -> mark# isNatural V1, mark# natsFrom X -> active# natsFrom mark X) (active# isNatural s V1 -> mark# isNatural V1, mark# natsFrom X -> mark# X) (active# isNatural s V1 -> mark# isNatural V1, mark# cons(X1, X2) -> cons#(mark X1, X2)) (active# isNatural s V1 -> mark# isNatural V1, mark# cons(X1, X2) -> 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V1 -> mark# isNatural V1, mark# snd X -> active# snd mark X) (active# isNatural s V1 -> mark# isNatural V1, mark# snd X -> mark# X) (active# isNatural s V1 -> mark# isNatural V1, mark# tt() -> active# tt()) (active# isNatural s V1 -> mark# isNatural V1, mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (active# isNatural s V1 -> mark# isNatural V1, mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (active# isNatural s V1 -> mark# isNatural V1, mark# U101(X1, X2, X3) -> mark# X1) (active# isNatural s V1 -> mark# isNatural V1, mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (active# isNatural s V1 -> mark# isNatural V1, mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (active# isNatural s V1 -> mark# isNatural V1, mark# splitAt(X1, X2) -> mark# X2) (active# isNatural s V1 -> mark# isNatural V1, mark# splitAt(X1, X2) -> mark# X1) (active# isNatural s V1 -> mark# isNatural V1, mark# fst X -> active# fst mark X) (active# isNatural s V1 -> mark# isNatural V1, mark# fst X -> fst# mark X) (active# isNatural s V1 -> mark# isNatural V1, mark# fst X -> mark# X) (active# isLNat fst V1 -> mark# isPLNat V1, mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# sel(X1, X2) -> mark# X2) (active# isLNat fst V1 -> mark# isPLNat V1, mark# sel(X1, X2) -> mark# X1) (active# isLNat fst V1 -> mark# isPLNat V1, mark# 0() -> active# 0()) (active# isLNat fst V1 -> mark# isPLNat V1, mark# take(X1, X2) -> take#(mark X1, mark X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# take(X1, X2) -> active# take(mark X1, mark X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# take(X1, X2) -> mark# X2) (active# isLNat fst V1 -> mark# isPLNat V1, mark# take(X1, X2) -> mark# X1) (active# isLNat fst V1 -> mark# isPLNat V1, mark# tail X -> tail# mark X) (active# isLNat fst V1 -> mark# isPLNat V1, mark# tail X -> active# tail mark X) (active# isLNat fst V1 -> mark# isPLNat V1, mark# tail X -> mark# X) (active# isLNat fst V1 -> mark# isPLNat V1, mark# isPLNat X -> active# isPLNat X) (active# isLNat fst V1 -> mark# isPLNat V1, mark# isLNat X -> active# isLNat X) (active# isLNat fst V1 -> mark# isPLNat V1, mark# isNatural X -> active# isNatural X) (active# isLNat fst V1 -> mark# isPLNat V1, mark# and(X1, X2) -> and#(mark X1, X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# and(X1, X2) -> active# and(mark X1, X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# and(X1, X2) -> mark# X1) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U91(X1, X2) -> U91#(mark X1, X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U91(X1, X2) -> active# U91(mark X1, X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U91(X1, X2) -> mark# X1) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U81(X1, X2, X3, X4) -> mark# X1) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U82(X1, X2) -> U82#(mark X1, X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U82(X1, X2) -> active# U82(mark X1, X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U82(X1, X2) -> mark# X1) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U71(X1, X2) -> U71#(mark X1, X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U71(X1, X2) -> active# U71(mark X1, X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U71(X1, X2) -> mark# X1) (active# isLNat fst V1 -> mark# isPLNat V1, mark# nil() -> active# nil()) (active# isLNat fst V1 -> mark# isPLNat V1, mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# pair(X1, X2) -> mark# X2) (active# isLNat fst V1 -> mark# isPLNat V1, mark# pair(X1, X2) -> mark# X1) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U61(X1, X2) -> U61#(mark X1, X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U61(X1, X2) -> active# U61(mark X1, X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U61(X1, X2) -> mark# X1) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U51(X1, X2, X3) -> mark# X1) (active# isLNat fst V1 -> mark# isPLNat V1, mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# afterNth(X1, X2) -> mark# X2) (active# isLNat fst V1 -> mark# isPLNat V1, mark# afterNth(X1, X2) -> mark# X1) (active# isLNat fst V1 -> mark# isPLNat V1, mark# head X -> head# mark X) (active# isLNat fst V1 -> mark# isPLNat V1, mark# head X -> active# head mark X) (active# isLNat fst V1 -> mark# isPLNat V1, mark# head X -> mark# X) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U41(X1, X2) -> U41#(mark X1, X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U41(X1, X2) -> active# U41(mark X1, X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U41(X1, X2) -> mark# X1) (active# isLNat fst V1 -> mark# isPLNat V1, mark# s X -> s# mark X) (active# isLNat fst V1 -> mark# isPLNat V1, mark# s X -> active# s mark X) (active# isLNat fst V1 -> mark# isPLNat V1, mark# s X -> mark# X) (active# isLNat fst V1 -> mark# isPLNat V1, mark# natsFrom X -> natsFrom# mark X) (active# isLNat fst V1 -> mark# isPLNat V1, mark# natsFrom X -> active# natsFrom mark X) (active# isLNat fst V1 -> mark# isPLNat V1, mark# natsFrom X -> mark# X) (active# isLNat fst V1 -> mark# isPLNat V1, mark# cons(X1, X2) -> cons#(mark X1, X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# cons(X1, X2) -> active# cons(mark X1, X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# cons(X1, X2) -> mark# X1) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U31(X1, X2) -> U31#(mark X1, X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U31(X1, X2) -> active# U31(mark X1, X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U31(X1, X2) -> mark# X1) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U21(X1, X2) -> U21#(mark X1, X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U21(X1, X2) -> active# U21(mark X1, X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U21(X1, X2) -> mark# X1) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U11(X1, X2, X3) -> mark# X1) (active# isLNat fst V1 -> mark# isPLNat V1, mark# snd X -> snd# mark X) (active# isLNat fst V1 -> mark# isPLNat V1, mark# snd X -> active# snd mark X) (active# isLNat fst V1 -> mark# isPLNat V1, mark# snd X -> mark# X) (active# isLNat fst V1 -> mark# isPLNat V1, mark# tt() -> active# tt()) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# U101(X1, X2, X3) -> mark# X1) (active# isLNat fst V1 -> mark# isPLNat V1, mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (active# isLNat fst V1 -> mark# isPLNat V1, mark# splitAt(X1, X2) -> mark# X2) (active# isLNat fst V1 -> mark# isPLNat V1, mark# splitAt(X1, X2) -> mark# X1) (active# isLNat fst V1 -> mark# isPLNat V1, mark# fst X -> active# fst mark X) (active# isLNat fst V1 -> mark# isPLNat V1, mark# fst X -> fst# mark X) (active# isLNat fst V1 -> mark# isPLNat V1, mark# fst X -> mark# X) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# sel(X1, X2) -> mark# X2) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# sel(X1, X2) -> mark# X1) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# 0() -> active# 0()) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# take(X1, X2) -> take#(mark X1, mark X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# take(X1, X2) -> active# take(mark X1, mark X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# take(X1, X2) -> mark# X2) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# take(X1, X2) -> mark# X1) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# tail X -> tail# mark X) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# tail X -> active# tail mark X) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# tail X -> mark# X) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# isPLNat X -> active# isPLNat X) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# isLNat X -> active# isLNat X) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# isNatural X -> active# isNatural X) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# and(X1, X2) -> and#(mark X1, X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# and(X1, X2) -> active# and(mark X1, X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# and(X1, X2) -> mark# X1) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U91(X1, X2) -> U91#(mark X1, X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U91(X1, X2) -> active# U91(mark X1, X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U91(X1, X2) -> mark# X1) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U81(X1, X2, X3, X4) -> mark# X1) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U82(X1, X2) -> U82#(mark X1, X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U82(X1, X2) -> active# U82(mark X1, X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U82(X1, X2) -> mark# X1) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U71(X1, X2) -> U71#(mark X1, X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U71(X1, X2) -> active# U71(mark X1, X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U71(X1, X2) -> mark# X1) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# nil() -> active# nil()) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# pair(X1, X2) -> mark# X2) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# pair(X1, X2) -> mark# X1) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U61(X1, X2) -> U61#(mark X1, X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U61(X1, X2) -> active# U61(mark X1, X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U61(X1, X2) -> mark# X1) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U51(X1, X2, X3) -> mark# X1) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# afterNth(X1, X2) -> mark# X2) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# afterNth(X1, X2) -> mark# X1) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# head X -> head# mark X) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# head X -> active# head mark X) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# head X -> mark# X) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U41(X1, X2) -> U41#(mark X1, X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U41(X1, X2) -> active# U41(mark X1, X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U41(X1, X2) -> mark# X1) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# s X -> s# mark X) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# s X -> active# s mark X) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# s X -> mark# X) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# natsFrom X -> natsFrom# mark X) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# natsFrom X -> active# natsFrom mark X) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# natsFrom X -> mark# X) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# cons(X1, X2) -> cons#(mark X1, X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# cons(X1, X2) -> active# cons(mark X1, X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# cons(X1, X2) -> mark# X1) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U31(X1, X2) -> U31#(mark X1, X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U31(X1, X2) -> active# U31(mark X1, X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U31(X1, X2) -> mark# X1) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U21(X1, X2) -> U21#(mark X1, X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U21(X1, X2) -> active# U21(mark X1, X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U21(X1, X2) -> mark# X1) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U11(X1, X2, X3) -> mark# X1) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# snd X -> snd# mark X) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# snd X -> active# snd mark X) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# snd X -> mark# X) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# tt() -> active# tt()) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# U101(X1, X2, X3) -> mark# X1) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# splitAt(X1, X2) -> mark# X2) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# splitAt(X1, X2) -> mark# X1) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# fst X -> active# fst mark X) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# fst X -> fst# mark X) (active# isLNat natsFrom V1 -> mark# isNatural V1, mark# fst X -> mark# X) (splitAt#(X1, mark X2) -> splitAt#(X1, X2), splitAt#(active X1, 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, active X2) -> splitAt#(X1, X2)) (splitAt#(X1, mark X2) -> splitAt#(X1, X2), splitAt#(X1, mark X2) -> splitAt#(X1, X2)) (splitAt#(mark X1, X2) -> splitAt#(X1, X2), splitAt#(active X1, 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#(X1, active X2) -> splitAt#(X1, X2)) (splitAt#(mark X1, X2) -> splitAt#(X1, X2), splitAt#(X1, mark X2) -> splitAt#(X1, X2)) (active# fst pair(X, Y) -> isLNat# Y, isLNat# active X -> isLNat# X) (active# fst pair(X, Y) -> isLNat# Y, isLNat# mark X -> isLNat# X) (active# U61(tt(), Y) -> mark# Y, mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (active# U61(tt(), Y) -> mark# Y, mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (active# U61(tt(), Y) -> mark# Y, mark# sel(X1, X2) -> mark# X2) (active# U61(tt(), Y) -> mark# Y, mark# sel(X1, X2) -> mark# X1) (active# U61(tt(), Y) -> mark# Y, mark# 0() -> active# 0()) (active# U61(tt(), Y) -> mark# Y, mark# take(X1, X2) -> take#(mark X1, mark X2)) (active# U61(tt(), Y) -> mark# Y, mark# take(X1, X2) -> active# take(mark X1, mark X2)) (active# U61(tt(), Y) -> mark# Y, mark# take(X1, X2) -> mark# X2) (active# U61(tt(), Y) -> mark# Y, mark# take(X1, X2) -> mark# X1) (active# U61(tt(), Y) -> mark# Y, mark# tail X -> tail# mark X) (active# U61(tt(), Y) -> mark# Y, mark# tail X -> active# tail mark X) (active# U61(tt(), Y) -> mark# Y, mark# tail X -> mark# X) (active# U61(tt(), Y) -> mark# Y, mark# isPLNat X -> active# isPLNat X) (active# U61(tt(), Y) -> mark# Y, mark# isLNat X -> active# isLNat X) (active# U61(tt(), Y) -> mark# Y, mark# isNatural X -> active# isNatural X) (active# U61(tt(), Y) -> mark# Y, mark# and(X1, X2) -> and#(mark X1, X2)) (active# U61(tt(), Y) -> mark# Y, mark# and(X1, X2) -> active# and(mark X1, X2)) (active# U61(tt(), Y) -> mark# Y, mark# and(X1, X2) -> mark# X1) (active# U61(tt(), Y) -> mark# Y, mark# U91(X1, X2) -> U91#(mark X1, X2)) (active# U61(tt(), Y) -> mark# Y, mark# U91(X1, X2) -> active# U91(mark X1, X2)) (active# U61(tt(), Y) -> mark# Y, mark# U91(X1, X2) -> mark# X1) (active# U61(tt(), Y) -> mark# Y, mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (active# U61(tt(), Y) -> mark# Y, mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (active# U61(tt(), Y) -> mark# Y, mark# U81(X1, X2, X3, X4) -> mark# X1) (active# U61(tt(), Y) -> mark# Y, mark# U82(X1, X2) -> U82#(mark X1, X2)) (active# U61(tt(), Y) -> mark# Y, mark# U82(X1, X2) -> active# U82(mark X1, X2)) (active# U61(tt(), Y) -> mark# Y, mark# U82(X1, X2) -> mark# X1) (active# U61(tt(), Y) -> mark# Y, mark# U71(X1, X2) -> U71#(mark X1, X2)) (active# U61(tt(), Y) -> mark# Y, mark# U71(X1, X2) -> active# U71(mark X1, X2)) (active# U61(tt(), Y) -> mark# Y, mark# U71(X1, X2) -> mark# X1) (active# U61(tt(), Y) -> mark# Y, mark# nil() -> active# nil()) (active# U61(tt(), Y) -> mark# Y, mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (active# U61(tt(), Y) -> mark# Y, mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (active# U61(tt(), Y) -> mark# Y, mark# pair(X1, X2) -> mark# X2) (active# U61(tt(), Y) -> mark# Y, mark# pair(X1, X2) -> mark# X1) (active# U61(tt(), Y) -> mark# Y, mark# U61(X1, X2) -> U61#(mark X1, X2)) (active# U61(tt(), Y) -> mark# Y, mark# U61(X1, X2) -> active# U61(mark X1, X2)) (active# U61(tt(), Y) -> mark# Y, mark# U61(X1, X2) -> mark# X1) (active# U61(tt(), Y) -> mark# Y, mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (active# U61(tt(), Y) -> mark# Y, mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (active# U61(tt(), Y) -> mark# Y, mark# U51(X1, X2, X3) -> mark# X1) (active# U61(tt(), Y) -> mark# Y, mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (active# U61(tt(), Y) -> mark# Y, mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (active# U61(tt(), Y) -> mark# Y, mark# afterNth(X1, X2) -> mark# X2) (active# U61(tt(), Y) -> mark# Y, mark# afterNth(X1, X2) -> mark# X1) (active# U61(tt(), Y) -> mark# Y, mark# head X -> head# mark X) (active# U61(tt(), Y) -> mark# Y, mark# head X -> active# head mark X) (active# U61(tt(), Y) -> mark# Y, mark# head X -> mark# X) (active# U61(tt(), Y) -> mark# Y, mark# U41(X1, X2) -> U41#(mark X1, X2)) (active# U61(tt(), Y) -> mark# Y, mark# U41(X1, X2) -> active# U41(mark X1, X2)) (active# U61(tt(), Y) -> mark# Y, mark# U41(X1, X2) -> mark# X1) (active# U61(tt(), Y) -> mark# Y, mark# s X -> s# mark X) (active# U61(tt(), Y) -> mark# Y, mark# s X -> active# s mark X) (active# U61(tt(), Y) -> mark# Y, mark# s X -> mark# X) (active# U61(tt(), Y) -> mark# Y, mark# natsFrom X -> natsFrom# mark X) (active# U61(tt(), Y) -> mark# Y, mark# natsFrom X -> active# natsFrom mark X) (active# U61(tt(), Y) -> mark# Y, mark# natsFrom X -> mark# X) (active# U61(tt(), Y) -> mark# Y, mark# cons(X1, X2) -> cons#(mark X1, X2)) (active# U61(tt(), Y) -> mark# Y, mark# cons(X1, X2) -> active# cons(mark X1, X2)) (active# U61(tt(), Y) -> mark# Y, mark# cons(X1, X2) -> mark# X1) (active# U61(tt(), Y) -> mark# Y, mark# U31(X1, X2) -> U31#(mark X1, X2)) (active# U61(tt(), Y) -> mark# Y, mark# U31(X1, X2) -> active# U31(mark X1, X2)) (active# U61(tt(), Y) -> mark# Y, mark# U31(X1, X2) -> mark# X1) (active# U61(tt(), Y) -> mark# Y, mark# U21(X1, X2) -> U21#(mark X1, X2)) (active# U61(tt(), Y) -> mark# Y, mark# U21(X1, X2) -> active# U21(mark X1, X2)) (active# U61(tt(), Y) -> mark# Y, mark# U21(X1, X2) -> mark# X1) (active# U61(tt(), Y) -> mark# Y, mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (active# U61(tt(), Y) -> mark# Y, mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (active# U61(tt(), Y) -> mark# Y, mark# U11(X1, X2, X3) -> mark# X1) (active# U61(tt(), Y) -> mark# Y, mark# snd X -> snd# mark X) (active# U61(tt(), Y) -> mark# Y, mark# snd X -> active# snd mark X) (active# U61(tt(), Y) -> mark# Y, mark# snd X -> mark# X) (active# U61(tt(), Y) -> mark# Y, mark# tt() -> active# tt()) (active# U61(tt(), Y) -> mark# Y, mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (active# U61(tt(), Y) -> mark# Y, mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (active# U61(tt(), Y) -> mark# Y, mark# U101(X1, X2, X3) -> mark# X1) (active# U61(tt(), Y) -> mark# Y, mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (active# U61(tt(), Y) -> mark# Y, mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (active# U61(tt(), Y) -> mark# Y, mark# splitAt(X1, X2) -> mark# X2) (active# U61(tt(), Y) -> mark# Y, mark# splitAt(X1, X2) -> mark# X1) (active# U61(tt(), Y) -> mark# Y, mark# fst X -> active# fst mark X) (active# U61(tt(), Y) -> mark# Y, mark# fst X -> fst# mark X) (active# U61(tt(), Y) -> mark# Y, mark# fst X -> mark# X) (U21#(X1, active X2) -> U21#(X1, X2), U21#(active X1, X2) -> U21#(X1, X2)) (U21#(X1, active X2) -> U21#(X1, X2), U21#(mark X1, X2) -> U21#(X1, X2)) (U21#(X1, active X2) -> U21#(X1, X2), U21#(X1, active X2) -> U21#(X1, X2)) (U21#(X1, active X2) -> U21#(X1, X2), U21#(X1, mark X2) -> U21#(X1, X2)) (U21#(active X1, X2) -> U21#(X1, X2), U21#(active X1, X2) -> U21#(X1, X2)) (U21#(active X1, X2) -> U21#(X1, X2), U21#(mark X1, X2) -> U21#(X1, X2)) (U21#(active X1, X2) -> U21#(X1, X2), U21#(X1, active X2) -> U21#(X1, X2)) (U21#(active X1, X2) -> U21#(X1, X2), U21#(X1, mark X2) -> U21#(X1, X2)) (U31#(X1, active X2) -> U31#(X1, X2), U31#(active X1, X2) -> U31#(X1, X2)) (U31#(X1, active X2) -> U31#(X1, X2), U31#(mark X1, X2) -> U31#(X1, X2)) (U31#(X1, active X2) -> U31#(X1, X2), U31#(X1, active X2) -> U31#(X1, X2)) (U31#(X1, active X2) -> U31#(X1, X2), U31#(X1, mark X2) -> U31#(X1, X2)) (U31#(active X1, X2) -> U31#(X1, X2), U31#(active X1, X2) -> U31#(X1, X2)) (U31#(active X1, X2) -> U31#(X1, X2), U31#(mark X1, X2) -> U31#(X1, X2)) (U31#(active X1, X2) -> U31#(X1, X2), U31#(X1, active X2) -> U31#(X1, X2)) (U31#(active X1, X2) -> U31#(X1, X2), U31#(X1, mark X2) -> U31#(X1, X2)) (cons#(X1, active X2) -> cons#(X1, X2), cons#(active X1, X2) -> cons#(X1, X2)) (cons#(X1, active X2) -> cons#(X1, X2), cons#(mark X1, X2) -> cons#(X1, X2)) (cons#(X1, active X2) -> cons#(X1, X2), cons#(X1, active X2) -> cons#(X1, X2)) (cons#(X1, active X2) -> cons#(X1, X2), cons#(X1, mark X2) -> cons#(X1, X2)) (cons#(active X1, X2) -> cons#(X1, X2), cons#(active X1, X2) -> cons#(X1, X2)) (cons#(active X1, X2) -> cons#(X1, X2), cons#(mark X1, X2) -> cons#(X1, X2)) (cons#(active X1, X2) -> cons#(X1, X2), cons#(X1, active X2) -> cons#(X1, X2)) (cons#(active X1, X2) -> cons#(X1, X2), cons#(X1, mark X2) -> cons#(X1, X2)) (U41#(X1, active X2) -> U41#(X1, X2), U41#(active X1, X2) -> U41#(X1, X2)) (U41#(X1, active X2) -> U41#(X1, X2), U41#(mark X1, X2) -> U41#(X1, X2)) (U41#(X1, active X2) -> U41#(X1, X2), U41#(X1, active X2) -> U41#(X1, X2)) (U41#(X1, active X2) -> U41#(X1, X2), U41#(X1, mark X2) -> U41#(X1, X2)) (U41#(active X1, X2) -> U41#(X1, X2), U41#(active X1, X2) -> U41#(X1, X2)) (U41#(active X1, X2) -> U41#(X1, X2), U41#(mark X1, X2) -> U41#(X1, X2)) (U41#(active X1, X2) -> U41#(X1, X2), U41#(X1, active X2) -> U41#(X1, X2)) (U41#(active X1, X2) -> U41#(X1, X2), U41#(X1, mark X2) -> U41#(X1, X2)) (afterNth#(X1, active X2) -> afterNth#(X1, X2), afterNth#(active X1, X2) -> afterNth#(X1, X2)) (afterNth#(X1, active X2) -> afterNth#(X1, X2), afterNth#(mark X1, X2) -> afterNth#(X1, X2)) (afterNth#(X1, active X2) -> afterNth#(X1, X2), afterNth#(X1, active X2) -> afterNth#(X1, X2)) (afterNth#(X1, active X2) -> afterNth#(X1, X2), afterNth#(X1, mark X2) -> afterNth#(X1, X2)) (afterNth#(active X1, X2) -> afterNth#(X1, X2), afterNth#(active X1, X2) -> afterNth#(X1, X2)) (afterNth#(active X1, X2) -> afterNth#(X1, X2), afterNth#(mark X1, X2) -> afterNth#(X1, X2)) (afterNth#(active X1, X2) -> afterNth#(X1, X2), afterNth#(X1, active X2) -> afterNth#(X1, X2)) (afterNth#(active X1, X2) -> afterNth#(X1, X2), afterNth#(X1, mark X2) -> afterNth#(X1, X2)) (U61#(X1, active X2) -> U61#(X1, X2), U61#(active X1, X2) -> U61#(X1, X2)) (U61#(X1, active X2) -> U61#(X1, X2), U61#(mark X1, X2) -> U61#(X1, X2)) (U61#(X1, active X2) -> U61#(X1, X2), U61#(X1, active X2) -> U61#(X1, X2)) (U61#(X1, active X2) -> U61#(X1, X2), U61#(X1, mark X2) -> U61#(X1, X2)) (U61#(active X1, X2) -> U61#(X1, X2), U61#(active X1, X2) -> U61#(X1, X2)) (U61#(active X1, X2) -> U61#(X1, X2), U61#(mark X1, X2) -> U61#(X1, X2)) (U61#(active X1, X2) -> U61#(X1, X2), U61#(X1, active X2) -> U61#(X1, X2)) (U61#(active X1, X2) -> U61#(X1, X2), U61#(X1, mark X2) -> U61#(X1, X2)) (pair#(X1, active X2) -> pair#(X1, X2), pair#(active X1, X2) -> pair#(X1, X2)) (pair#(X1, active X2) -> pair#(X1, X2), pair#(mark X1, X2) -> pair#(X1, X2)) (pair#(X1, active X2) -> pair#(X1, X2), pair#(X1, active X2) -> pair#(X1, X2)) (pair#(X1, active X2) -> pair#(X1, X2), pair#(X1, mark X2) -> pair#(X1, X2)) (pair#(active X1, X2) -> pair#(X1, X2), pair#(active X1, X2) -> pair#(X1, X2)) (pair#(active X1, X2) -> pair#(X1, X2), pair#(mark X1, X2) -> pair#(X1, X2)) (pair#(active X1, X2) -> pair#(X1, X2), pair#(X1, active X2) -> pair#(X1, X2)) (pair#(active X1, X2) -> pair#(X1, X2), pair#(X1, mark X2) -> pair#(X1, X2)) (U71#(X1, active X2) -> U71#(X1, X2), U71#(active X1, X2) -> U71#(X1, X2)) (U71#(X1, active X2) -> U71#(X1, X2), U71#(mark X1, X2) -> U71#(X1, X2)) (U71#(X1, active X2) -> U71#(X1, X2), U71#(X1, active X2) -> U71#(X1, X2)) (U71#(X1, active X2) -> U71#(X1, X2), U71#(X1, mark X2) -> U71#(X1, X2)) (U71#(active X1, X2) -> U71#(X1, X2), U71#(active X1, X2) -> U71#(X1, X2)) (U71#(active X1, X2) -> U71#(X1, X2), U71#(mark X1, X2) -> U71#(X1, X2)) (U71#(active X1, X2) -> U71#(X1, X2), U71#(X1, active X2) -> U71#(X1, X2)) (U71#(active X1, X2) -> U71#(X1, X2), U71#(X1, mark X2) -> U71#(X1, X2)) (U82#(X1, active X2) -> U82#(X1, X2), U82#(active X1, X2) -> U82#(X1, X2)) (U82#(X1, active X2) -> U82#(X1, X2), U82#(mark X1, X2) -> U82#(X1, X2)) (U82#(X1, active X2) -> U82#(X1, X2), U82#(X1, active X2) -> U82#(X1, X2)) (U82#(X1, active X2) -> U82#(X1, X2), U82#(X1, mark X2) -> U82#(X1, X2)) (U82#(active X1, X2) -> U82#(X1, X2), U82#(active X1, X2) -> U82#(X1, X2)) (U82#(active X1, X2) -> U82#(X1, X2), U82#(mark X1, X2) -> U82#(X1, X2)) (U82#(active X1, X2) -> U82#(X1, X2), U82#(X1, active X2) -> U82#(X1, X2)) (U82#(active X1, X2) -> U82#(X1, X2), U82#(X1, mark X2) -> U82#(X1, X2)) (U91#(X1, active X2) -> U91#(X1, X2), U91#(active X1, X2) -> U91#(X1, X2)) (U91#(X1, active X2) -> U91#(X1, X2), U91#(mark X1, X2) -> U91#(X1, X2)) (U91#(X1, active X2) -> U91#(X1, X2), U91#(X1, active X2) -> U91#(X1, X2)) (U91#(X1, active X2) -> U91#(X1, X2), U91#(X1, mark X2) -> U91#(X1, X2)) (U91#(active X1, X2) -> U91#(X1, X2), U91#(active X1, X2) -> U91#(X1, X2)) (U91#(active X1, X2) -> U91#(X1, X2), U91#(mark X1, X2) -> U91#(X1, X2)) (U91#(active X1, X2) -> U91#(X1, X2), U91#(X1, active X2) -> U91#(X1, X2)) (U91#(active X1, X2) -> U91#(X1, X2), U91#(X1, mark X2) -> U91#(X1, X2)) (and#(X1, active X2) -> and#(X1, X2), and#(active X1, X2) -> and#(X1, X2)) (and#(X1, active X2) -> and#(X1, X2), and#(mark X1, X2) -> and#(X1, X2)) (and#(X1, active X2) -> and#(X1, X2), and#(X1, active X2) -> and#(X1, X2)) (and#(X1, active X2) -> and#(X1, X2), and#(X1, mark X2) -> and#(X1, X2)) (and#(active X1, X2) -> and#(X1, X2), and#(active X1, X2) -> and#(X1, X2)) (and#(active X1, X2) -> and#(X1, X2), and#(mark X1, X2) -> and#(X1, X2)) (and#(active X1, X2) -> and#(X1, X2), and#(X1, active X2) -> and#(X1, X2)) (and#(active X1, X2) -> and#(X1, X2), and#(X1, mark X2) -> and#(X1, X2)) (take#(X1, active X2) -> take#(X1, X2), take#(active X1, X2) -> take#(X1, X2)) (take#(X1, active X2) -> take#(X1, X2), take#(mark X1, X2) -> take#(X1, X2)) (take#(X1, active X2) -> take#(X1, X2), take#(X1, active X2) -> take#(X1, X2)) (take#(X1, active X2) -> take#(X1, X2), take#(X1, mark X2) -> take#(X1, X2)) (take#(active X1, X2) -> take#(X1, X2), take#(active X1, X2) -> take#(X1, X2)) (take#(active X1, X2) -> take#(X1, X2), take#(mark X1, X2) -> take#(X1, X2)) (take#(active X1, X2) -> take#(X1, X2), take#(X1, active X2) -> take#(X1, X2)) (take#(active X1, X2) -> take#(X1, X2), take#(X1, mark X2) -> take#(X1, X2)) (sel#(X1, active X2) -> sel#(X1, X2), sel#(active X1, X2) -> sel#(X1, X2)) (sel#(X1, active X2) -> sel#(X1, X2), sel#(mark X1, X2) -> sel#(X1, X2)) (sel#(X1, active X2) -> sel#(X1, X2), sel#(X1, active X2) -> sel#(X1, X2)) (sel#(X1, active X2) -> sel#(X1, X2), sel#(X1, mark X2) -> sel#(X1, X2)) (sel#(active X1, X2) -> sel#(X1, X2), sel#(active X1, X2) -> sel#(X1, X2)) (sel#(active X1, X2) -> sel#(X1, X2), sel#(mark X1, X2) -> sel#(X1, X2)) (sel#(active X1, X2) -> sel#(X1, X2), sel#(X1, active X2) -> sel#(X1, X2)) (sel#(active X1, X2) -> sel#(X1, X2), sel#(X1, mark X2) -> sel#(X1, X2)) (mark# snd X -> snd# mark X, snd# active X -> snd# X) (mark# snd X -> snd# mark X, snd# mark X -> snd# X) (mark# s X -> s# mark X, s# active X -> s# X) (mark# s X -> s# mark X, s# mark X -> s# X) (mark# isNatural X -> active# isNatural X, active# sel(N, XS) -> isLNat# XS) (mark# isNatural X -> active# isNatural X, active# sel(N, XS) -> isNatural# N) (mark# isNatural X -> active# isNatural X, active# sel(N, XS) -> and#(isNatural N, isLNat XS)) (mark# isNatural X -> active# isNatural X, active# sel(N, XS) -> U51#(and(isNatural N, isLNat XS), N, XS)) (mark# isNatural X -> active# isNatural 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mark# U91(and(isNatural N, isLNat XS), XS)) (mark# isNatural X -> active# isNatural X, active# isPLNat pair(V1, V2) -> isLNat# V2) (mark# isNatural X -> active# isNatural X, active# isPLNat pair(V1, V2) -> isLNat# V1) (mark# isNatural X -> active# isNatural X, active# isPLNat pair(V1, V2) -> and#(isLNat V1, isLNat V2)) (mark# isNatural X -> active# isNatural X, active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2)) (mark# isNatural X -> active# isNatural X, active# isPLNat splitAt(V1, V2) -> isLNat# V2) (mark# isNatural X -> active# isNatural X, active# isPLNat splitAt(V1, V2) -> isNatural# V1) (mark# isNatural X -> active# isNatural X, active# isPLNat splitAt(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# isNatural X -> active# isNatural X, active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# isNatural X -> active# isNatural X, active# isLNat take(V1, V2) -> isLNat# V2) (mark# isNatural X -> active# isNatural X, active# isLNat take(V1, V2) -> 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isPLNat X -> active# isPLNat X, active# U11(tt(), N, XS) -> splitAt#(N, XS)) (mark# isPLNat X -> active# isPLNat X, active# U11(tt(), N, XS) -> mark# snd splitAt(N, XS)) (mark# isPLNat X -> active# isPLNat X, active# snd pair(X, Y) -> isLNat# Y) (mark# isPLNat X -> active# isPLNat X, active# snd pair(X, Y) -> isLNat# X) (mark# isPLNat X -> active# isPLNat X, active# snd pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# isPLNat X -> active# isPLNat X, active# snd pair(X, Y) -> U61#(and(isLNat X, isLNat Y), Y)) (mark# isPLNat X -> active# isPLNat X, active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y)) (mark# isPLNat X -> active# isPLNat X, active# U101(tt(), N, XS) -> splitAt#(N, XS)) (mark# isPLNat X -> active# isPLNat X, active# U101(tt(), N, XS) -> fst# splitAt(N, XS)) (mark# isPLNat X -> active# isPLNat X, active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS)) (mark# isPLNat X -> active# isPLNat X, active# splitAt(0(), XS) -> isLNat# XS) (mark# isPLNat X -> active# isPLNat 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tt()) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# isLNat afterNth(V1, V2) -> isLNat# V2) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# isLNat afterNth(V1, V2) -> isNatural# V1) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# isLNat afterNth(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# isLNat natsFrom V1 -> isNatural# V1) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# isLNat natsFrom V1 -> mark# isNatural V1) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# isLNat cons(V1, V2) -> isLNat# V2) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# isLNat cons(V1, V2) -> isNatural# V1) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# isLNat cons(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# isLNat cons(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# isLNat snd V1 -> isPLNat# V1) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# isLNat snd V1 -> mark# isPLNat V1) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# isLNat fst V1 -> isPLNat# V1) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# isLNat fst V1 -> mark# isPLNat V1) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# isNatural sel(V1, V2) -> isLNat# V2) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# isNatural sel(V1, V2) -> isNatural# V1) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# isNatural sel(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, 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N, X, XS) -> splitAt#(N, XS)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# U82(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# U82(pair(YS, ZS), X) -> cons#(X, YS)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# U71(tt(), XS) -> pair#(nil(), XS)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# U71(tt(), XS) -> mark# pair(nil(), XS)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# U61(tt(), Y) -> mark# Y) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# U51(tt(), N, XS) -> afterNth#(N, XS)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# U51(tt(), N, XS) -> head# afterNth(N, XS)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# U51(tt(), N, XS) -> mark# head afterNth(N, XS)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# afterNth(N, XS) -> isLNat# XS) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# afterNth(N, XS) -> isNatural# N) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# afterNth(N, XS) -> and#(isNatural N, isLNat XS)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# afterNth(N, XS) -> U11#(and(isNatural N, isLNat XS), N, XS)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# head cons(N, XS) -> isLNat# XS) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# head cons(N, XS) -> isNatural# N) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# head cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# head cons(N, XS) -> U31#(and(isNatural N, isLNat XS), N)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# U41(tt(), N) -> s# N) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# U41(tt(), N) -> natsFrom# s N) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# U41(tt(), N) -> cons#(N, natsFrom s N)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# U41(tt(), N) -> mark# cons(N, natsFrom s N)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# natsFrom N -> isNatural# N) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# natsFrom N -> U41#(isNatural N, N)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# natsFrom N -> mark# U41(isNatural N, N)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# U31(tt(), N) -> mark# N) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# U21(tt(), X) -> mark# X) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# U11(tt(), N, XS) -> snd# splitAt(N, XS)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# U11(tt(), N, XS) -> splitAt#(N, XS)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# U11(tt(), N, XS) -> mark# snd splitAt(N, XS)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# snd pair(X, Y) -> isLNat# Y) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# snd pair(X, Y) -> isLNat# X) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# snd pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# snd pair(X, Y) -> U61#(and(isLNat X, isLNat Y), Y)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# U101(tt(), N, XS) -> splitAt#(N, XS)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# U101(tt(), N, XS) -> fst# splitAt(N, XS)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# splitAt(0(), XS) -> isLNat# XS) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# splitAt(0(), XS) -> U71#(isLNat XS, XS)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# splitAt(s N, cons(X, XS)) -> isLNat# XS) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# splitAt(s N, cons(X, XS)) -> isNatural# X) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# splitAt(s N, cons(X, XS)) -> isNatural# N) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# splitAt(s N, cons(X, XS)) -> and#(isNatural X, isLNat XS)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# splitAt(s N, cons(X, XS)) -> and#(isNatural N, and(isNatural X, isLNat XS))) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# splitAt(s N, cons(X, XS)) -> U81#(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# fst pair(X, Y) -> isLNat# Y) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# fst pair(X, Y) -> isLNat# X) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# fst pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# fst pair(X, Y) -> U21#(and(isLNat X, isLNat Y), X)) (mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X)) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# sel(N, XS) -> isLNat# XS) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# sel(N, XS) -> isNatural# N) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# sel(N, XS) -> and#(isNatural N, isLNat XS)) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# sel(N, XS) -> U51#(and(isNatural N, isLNat XS), N, XS)) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS)) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# take(N, XS) -> isLNat# XS) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# take(N, XS) -> isNatural# N) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# take(N, XS) -> and#(isNatural N, isLNat XS)) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# take(N, XS) -> U101#(and(isNatural N, isLNat XS), N, XS)) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS)) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# tail cons(N, XS) -> isLNat# XS) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# tail cons(N, XS) -> isNatural# N) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# tail cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# tail cons(N, XS) -> U91#(and(isNatural N, isLNat XS), XS)) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS)) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isPLNat pair(V1, V2) -> isLNat# V2) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isPLNat pair(V1, V2) -> isLNat# V1) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isPLNat pair(V1, V2) -> and#(isLNat V1, isLNat V2)) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2)) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isPLNat splitAt(V1, V2) -> isLNat# V2) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isPLNat splitAt(V1, V2) -> isNatural# V1) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isPLNat splitAt(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isLNat take(V1, V2) -> isLNat# V2) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isLNat take(V1, V2) -> isNatural# V1) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isLNat take(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isLNat take(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isLNat tail V1 -> isLNat# V1) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isLNat tail V1 -> mark# isLNat V1) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isLNat nil() -> mark# tt()) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isLNat afterNth(V1, V2) -> isLNat# V2) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isLNat afterNth(V1, V2) -> isNatural# V1) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isLNat afterNth(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isLNat natsFrom V1 -> isNatural# V1) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isLNat natsFrom V1 -> mark# isNatural V1) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isLNat cons(V1, V2) -> isLNat# V2) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isLNat cons(V1, V2) -> isNatural# V1) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isLNat cons(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isLNat cons(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isLNat snd V1 -> isPLNat# V1) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isLNat snd V1 -> mark# isPLNat V1) (mark# take(X1, X2) -> active# take(mark X1, mark X2), active# isLNat fst V1 -> isPLNat# V1) (mark# 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sel#(mark X1, mark X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# sel(X1, X2) -> mark# X2) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# sel(X1, X2) -> mark# X1) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# 0() -> active# 0()) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# take(X1, X2) -> take#(mark X1, mark X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# take(X1, X2) -> active# take(mark X1, mark X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# take(X1, X2) -> mark# X2) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# take(X1, X2) -> mark# X1) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# tail X -> tail# mark X) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# tail X -> active# tail mark X) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# tail X -> mark# X) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# isPLNat X -> active# isPLNat X) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# isLNat X -> active# isLNat X) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# isNatural X -> active# isNatural X) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# and(X1, X2) -> and#(mark X1, X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# and(X1, X2) -> active# and(mark X1, X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# and(X1, X2) -> mark# X1) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U91(X1, X2) -> U91#(mark X1, X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U91(X1, X2) -> active# U91(mark X1, X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U91(X1, X2) -> mark# X1) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U81(X1, X2, X3, X4) -> mark# X1) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U82(X1, X2) -> U82#(mark X1, X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U82(X1, X2) -> active# U82(mark X1, X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U82(X1, X2) -> mark# X1) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U71(X1, X2) -> U71#(mark X1, X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U71(X1, X2) -> active# U71(mark X1, X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U71(X1, X2) -> mark# X1) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# nil() -> active# nil()) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# pair(X1, X2) -> mark# X2) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# pair(X1, X2) -> mark# X1) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U61(X1, X2) -> U61#(mark X1, X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U61(X1, X2) -> active# U61(mark X1, X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U61(X1, X2) -> mark# X1) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U51(X1, X2, X3) -> mark# X1) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# afterNth(X1, X2) -> mark# X2) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# afterNth(X1, X2) -> mark# X1) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# head X -> head# mark X) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# head X -> active# head mark X) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# head X -> mark# X) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U41(X1, X2) -> U41#(mark X1, X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U41(X1, X2) -> active# U41(mark X1, X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U41(X1, X2) -> mark# X1) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# s X -> s# mark X) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# s X -> active# s mark X) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# s X -> mark# X) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# natsFrom X -> natsFrom# mark X) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# natsFrom X -> active# natsFrom mark X) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# natsFrom X -> mark# X) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# cons(X1, X2) -> cons#(mark X1, X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# cons(X1, X2) -> active# cons(mark X1, X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# cons(X1, X2) -> mark# X1) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U31(X1, X2) -> U31#(mark X1, X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U31(X1, X2) -> active# U31(mark X1, X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U31(X1, X2) -> mark# X1) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U21(X1, X2) -> U21#(mark X1, X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U21(X1, X2) -> active# U21(mark X1, X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U21(X1, X2) -> mark# X1) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U11(X1, X2, X3) -> mark# X1) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# snd X -> snd# mark X) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# snd X -> active# snd mark X) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# snd X -> mark# X) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# tt() -> active# tt()) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# U101(X1, X2, X3) -> mark# X1) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# splitAt(X1, X2) -> mark# X2) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# splitAt(X1, X2) -> mark# X1) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# fst X -> active# fst mark X) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# fst X -> fst# mark X) (active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), mark# fst X -> mark# X) (active# take(N, XS) -> U101#(and(isNatural N, isLNat XS), N, XS), U101#(active X1, X2, X3) -> U101#(X1, X2, X3)) (active# take(N, XS) -> U101#(and(isNatural N, isLNat XS), N, XS), U101#(mark X1, X2, X3) -> U101#(X1, X2, X3)) (active# take(N, XS) -> U101#(and(isNatural N, isLNat XS), N, XS), U101#(X1, active X2, X3) -> U101#(X1, X2, X3)) (active# take(N, XS) -> U101#(and(isNatural N, isLNat XS), N, XS), U101#(X1, mark X2, X3) -> U101#(X1, X2, X3)) (active# take(N, XS) -> U101#(and(isNatural N, isLNat XS), N, XS), U101#(X1, X2, active X3) -> U101#(X1, X2, X3)) (active# take(N, XS) -> U101#(and(isNatural N, isLNat XS), N, XS), U101#(X1, X2, mark X3) -> U101#(X1, X2, X3)) (active# U82(pair(YS, ZS), X) -> cons#(X, YS), cons#(active X1, X2) -> cons#(X1, X2)) (active# U82(pair(YS, ZS), X) -> cons#(X, YS), cons#(mark X1, X2) -> cons#(X1, X2)) (active# U82(pair(YS, ZS), X) -> cons#(X, YS), cons#(X1, active X2) -> cons#(X1, X2)) (active# U82(pair(YS, ZS), X) -> cons#(X, YS), cons#(X1, mark X2) -> cons#(X1, X2)) (active# U31(tt(), N) -> mark# N, mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (active# U31(tt(), N) -> mark# N, mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (active# U31(tt(), N) -> mark# N, mark# sel(X1, X2) -> mark# X2) (active# U31(tt(), N) -> mark# N, mark# sel(X1, X2) -> mark# X1) (active# U31(tt(), N) -> mark# N, mark# 0() -> active# 0()) (active# U31(tt(), N) -> mark# N, mark# take(X1, X2) -> take#(mark X1, mark X2)) (active# U31(tt(), N) -> mark# N, mark# take(X1, X2) -> active# take(mark X1, mark X2)) (active# U31(tt(), N) -> mark# N, mark# take(X1, X2) -> mark# X2) (active# U31(tt(), N) -> mark# N, mark# take(X1, X2) -> mark# X1) (active# U31(tt(), N) -> mark# N, mark# tail X -> tail# mark X) (active# U31(tt(), N) -> mark# N, mark# tail X -> active# tail mark X) (active# U31(tt(), N) -> mark# N, mark# tail X -> mark# X) (active# U31(tt(), N) -> mark# N, mark# isPLNat X -> active# isPLNat X) (active# U31(tt(), N) -> mark# N, mark# isLNat X -> active# isLNat X) (active# U31(tt(), N) -> mark# N, mark# isNatural X -> active# isNatural X) (active# U31(tt(), N) -> mark# N, mark# and(X1, X2) -> and#(mark X1, X2)) (active# U31(tt(), N) -> mark# N, mark# and(X1, X2) -> active# and(mark X1, X2)) (active# U31(tt(), N) -> mark# N, mark# and(X1, X2) -> mark# X1) (active# U31(tt(), N) -> mark# N, mark# U91(X1, X2) -> U91#(mark X1, X2)) (active# U31(tt(), N) -> mark# N, mark# U91(X1, X2) -> active# U91(mark X1, X2)) (active# U31(tt(), N) -> mark# N, mark# U91(X1, X2) -> mark# X1) (active# U31(tt(), N) -> mark# N, mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (active# U31(tt(), N) -> mark# N, mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (active# U31(tt(), N) -> mark# N, mark# U81(X1, X2, X3, X4) -> mark# X1) (active# U31(tt(), N) -> mark# N, mark# U82(X1, X2) -> U82#(mark X1, X2)) (active# U31(tt(), N) -> mark# N, mark# U82(X1, X2) -> active# U82(mark X1, X2)) (active# U31(tt(), N) -> mark# N, mark# U82(X1, X2) -> mark# X1) (active# U31(tt(), N) -> mark# N, mark# U71(X1, X2) -> U71#(mark X1, X2)) (active# U31(tt(), N) -> mark# N, mark# U71(X1, X2) -> active# U71(mark X1, X2)) (active# U31(tt(), N) -> mark# N, mark# U71(X1, X2) -> mark# X1) (active# U31(tt(), N) -> mark# N, mark# nil() -> active# nil()) (active# U31(tt(), N) -> mark# N, mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (active# U31(tt(), N) -> mark# N, mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (active# U31(tt(), N) -> mark# N, mark# pair(X1, X2) -> mark# X2) (active# U31(tt(), N) -> mark# N, mark# pair(X1, X2) -> mark# X1) (active# U31(tt(), N) -> mark# N, mark# U61(X1, X2) -> U61#(mark X1, X2)) (active# U31(tt(), N) -> mark# N, mark# U61(X1, X2) -> active# U61(mark X1, X2)) (active# U31(tt(), N) -> mark# N, mark# U61(X1, X2) -> mark# X1) (active# U31(tt(), N) -> mark# N, mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (active# U31(tt(), N) -> mark# N, mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (active# U31(tt(), N) -> mark# N, mark# U51(X1, X2, X3) -> mark# X1) (active# U31(tt(), N) -> mark# N, mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (active# U31(tt(), N) -> mark# N, mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (active# U31(tt(), N) -> mark# N, mark# afterNth(X1, X2) -> mark# X2) (active# U31(tt(), N) -> mark# N, mark# afterNth(X1, X2) -> mark# X1) (active# U31(tt(), N) -> mark# N, mark# head X -> head# mark X) (active# U31(tt(), N) -> mark# N, mark# head X -> active# head mark X) (active# U31(tt(), N) -> mark# N, mark# head X -> mark# X) (active# U31(tt(), N) -> mark# N, mark# U41(X1, X2) -> U41#(mark X1, X2)) (active# U31(tt(), N) -> mark# N, mark# U41(X1, X2) -> active# U41(mark X1, X2)) (active# U31(tt(), N) -> mark# N, mark# U41(X1, X2) -> mark# X1) (active# U31(tt(), N) -> mark# N, mark# s X -> s# mark X) (active# U31(tt(), N) -> mark# N, mark# s X -> active# s mark X) (active# U31(tt(), N) -> mark# N, mark# s X -> mark# X) (active# U31(tt(), N) -> mark# N, mark# natsFrom X -> natsFrom# mark X) (active# U31(tt(), N) -> mark# N, mark# natsFrom X -> active# natsFrom mark X) (active# U31(tt(), N) -> mark# N, mark# natsFrom X -> mark# X) (active# U31(tt(), N) -> mark# N, mark# cons(X1, X2) -> cons#(mark X1, X2)) (active# U31(tt(), N) -> mark# N, mark# cons(X1, X2) -> active# cons(mark X1, X2)) (active# U31(tt(), N) -> mark# N, mark# cons(X1, X2) -> mark# X1) (active# U31(tt(), N) -> mark# N, mark# U31(X1, X2) -> U31#(mark X1, X2)) (active# U31(tt(), N) -> mark# N, mark# U31(X1, X2) -> active# U31(mark X1, X2)) (active# U31(tt(), N) -> mark# N, mark# U31(X1, X2) -> mark# X1) (active# U31(tt(), N) -> mark# N, mark# U21(X1, X2) -> U21#(mark X1, X2)) (active# U31(tt(), N) -> mark# N, mark# U21(X1, X2) -> active# U21(mark X1, X2)) (active# U31(tt(), N) -> mark# N, mark# U21(X1, X2) -> mark# X1) (active# U31(tt(), N) -> mark# N, mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (active# U31(tt(), N) -> mark# N, mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (active# U31(tt(), N) -> mark# N, mark# U11(X1, X2, X3) -> mark# X1) (active# U31(tt(), N) -> mark# N, mark# snd X -> snd# mark X) (active# U31(tt(), N) -> mark# N, mark# snd X -> active# snd mark X) (active# U31(tt(), N) -> mark# N, mark# snd X -> mark# X) (active# U31(tt(), N) -> mark# N, mark# tt() -> active# tt()) (active# U31(tt(), N) -> mark# N, mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (active# U31(tt(), N) -> mark# N, mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (active# U31(tt(), N) -> mark# N, mark# U101(X1, X2, X3) -> mark# X1) (active# U31(tt(), N) -> mark# N, mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (active# U31(tt(), N) -> mark# N, mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (active# U31(tt(), N) -> mark# N, mark# splitAt(X1, X2) -> mark# X2) (active# U31(tt(), N) -> mark# N, mark# splitAt(X1, X2) -> mark# X1) (active# U31(tt(), N) -> mark# N, mark# fst X -> active# fst mark X) (active# U31(tt(), N) -> mark# N, mark# fst X -> fst# mark X) (active# U31(tt(), N) -> mark# N, mark# fst X -> mark# X) (active# U41(tt(), N) -> s# N, s# active X -> s# X) (active# U41(tt(), N) -> s# N, s# mark X -> s# X) (active# afterNth(N, XS) -> isNatural# N, isNatural# active X -> isNatural# X) (active# afterNth(N, XS) -> isNatural# N, isNatural# mark X -> isNatural# X) (active# take(N, XS) -> isNatural# N, isNatural# active X -> isNatural# X) (active# take(N, XS) -> isNatural# N, isNatural# mark X -> isNatural# X) (mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4), U81#(active X1, X2, X3, X4) -> U81#(X1, X2, X3, X4)) (mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4), U81#(mark X1, X2, X3, X4) -> U81#(X1, X2, X3, X4)) (mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4), U81#(X1, active X2, X3, X4) -> U81#(X1, X2, X3, X4)) (mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4), U81#(X1, mark X2, X3, X4) -> U81#(X1, X2, X3, X4)) (mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4), U81#(X1, X2, active X3, X4) -> U81#(X1, X2, X3, X4)) (mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4), U81#(X1, X2, mark X3, X4) -> U81#(X1, X2, X3, X4)) (mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4), U81#(X1, X2, X3, active X4) -> U81#(X1, X2, X3, X4)) (mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4), U81#(X1, X2, X3, mark X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, X3, active X4) -> U81#(X1, X2, X3, X4), U81#(active X1, X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, X3, active X4) -> U81#(X1, X2, X3, X4), U81#(mark X1, X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, X3, active X4) -> U81#(X1, X2, X3, X4), U81#(X1, active X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, X3, active X4) -> U81#(X1, X2, X3, X4), U81#(X1, mark X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, X3, active X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, active X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, X3, active X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, mark X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, X3, active X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, X3, active X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, X3, active X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, X3, mark X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, active X3, X4) -> U81#(X1, X2, X3, X4), U81#(active X1, X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, active X3, X4) -> U81#(X1, X2, X3, X4), U81#(mark X1, X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, active X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, active X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, active X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, mark X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, active X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, active X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, active X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, mark X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, active X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, X3, active X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, active X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, X3, mark X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, active X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(active X1, X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, active X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(mark X1, X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, active X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, active X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, active X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, mark X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, active X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, active X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, active X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, mark X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, active X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, X3, active X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, active X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, X3, mark X4) -> U81#(X1, X2, X3, X4)) (U81#(active X1, X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(active X1, X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(active X1, X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(mark X1, X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(active X1, X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, active X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(active X1, X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, mark X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(active X1, X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, active X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(active X1, X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, mark X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(active X1, X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, X3, active X4) -> U81#(X1, X2, X3, X4)) (U81#(active X1, X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, X3, mark X4) -> U81#(X1, X2, X3, X4)) (active# splitAt(s N, cons(X, XS)) -> U81#(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), U81#(X1, X2, X3, mark X4) -> U81#(X1, X2, X3, X4)) (active# splitAt(s N, cons(X, XS)) -> U81#(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), U81#(X1, X2, X3, active X4) -> U81#(X1, X2, X3, X4)) (active# splitAt(s N, cons(X, XS)) -> U81#(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), U81#(X1, X2, mark X3, X4) -> U81#(X1, X2, X3, X4)) (active# splitAt(s N, cons(X, XS)) -> U81#(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), U81#(X1, X2, active X3, X4) -> U81#(X1, X2, X3, X4)) (active# splitAt(s N, cons(X, XS)) -> U81#(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), U81#(X1, mark X2, X3, X4) -> U81#(X1, X2, X3, X4)) (active# splitAt(s N, cons(X, XS)) -> U81#(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), U81#(X1, active X2, X3, X4) -> U81#(X1, X2, X3, X4)) (active# splitAt(s N, cons(X, XS)) -> U81#(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), U81#(mark X1, X2, X3, X4) -> U81#(X1, X2, X3, X4)) (active# splitAt(s N, cons(X, XS)) -> U81#(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), U81#(active X1, X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(mark X1, X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, X3, mark X4) -> U81#(X1, X2, X3, X4)) (U81#(mark X1, X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, X3, active X4) -> U81#(X1, X2, X3, X4)) (U81#(mark X1, X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, mark X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(mark X1, X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, active X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(mark X1, X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, mark X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(mark X1, X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, active X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(mark X1, X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(mark X1, X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(mark X1, X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(active X1, X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, mark X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, X3, mark X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, mark X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, X3, active X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, mark X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, mark X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, mark X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, active X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, mark X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, mark X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, mark X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, active X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, mark X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(mark X1, X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, mark X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(active X1, X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, mark X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, X3, mark X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, mark X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, X3, active X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, mark X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, mark X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, mark X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, active X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, mark X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, mark X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, mark X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, active X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, mark X3, X4) -> U81#(X1, X2, X3, X4), U81#(mark X1, X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, mark X3, X4) -> U81#(X1, X2, X3, X4), U81#(active X1, X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, X3, mark X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, X3, mark X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, X3, mark X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, X3, active X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, X3, mark X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, mark X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, X3, mark X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, active X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, X3, mark X4) -> U81#(X1, X2, X3, X4), U81#(X1, mark X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, X3, mark X4) -> U81#(X1, X2, X3, X4), U81#(X1, active X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, X3, mark X4) -> U81#(X1, X2, X3, X4), U81#(mark X1, X2, X3, X4) -> U81#(X1, X2, X3, X4)) (U81#(X1, X2, X3, mark X4) -> U81#(X1, X2, X3, X4), U81#(active X1, X2, X3, X4) -> U81#(X1, X2, X3, X4)) (active# sel(N, XS) -> isNatural# N, isNatural# mark X -> isNatural# X) (active# sel(N, XS) -> isNatural# N, isNatural# active X -> isNatural# X) (active# tail cons(N, XS) -> isNatural# N, isNatural# mark X -> isNatural# X) (active# tail cons(N, XS) -> isNatural# N, isNatural# active X -> isNatural# X) (active# head cons(N, XS) -> isNatural# N, isNatural# mark X -> isNatural# X) (active# head cons(N, XS) -> isNatural# N, isNatural# active X -> isNatural# X) (active# natsFrom N -> isNatural# N, isNatural# mark X -> isNatural# X) (active# natsFrom N -> isNatural# N, isNatural# active X -> isNatural# X) (active# splitAt(s N, cons(X, XS)) -> isNatural# N, isNatural# mark X -> isNatural# X) (active# splitAt(s N, cons(X, XS)) -> isNatural# N, isNatural# active X -> isNatural# X) (active# sel(N, XS) -> U51#(and(isNatural N, isLNat XS), N, XS), U51#(X1, X2, mark X3) -> U51#(X1, X2, X3)) (active# sel(N, XS) -> U51#(and(isNatural N, isLNat XS), N, XS), U51#(X1, X2, active X3) -> U51#(X1, X2, X3)) (active# sel(N, XS) -> U51#(and(isNatural N, isLNat XS), N, XS), U51#(X1, mark X2, X3) -> U51#(X1, X2, X3)) (active# sel(N, XS) -> U51#(and(isNatural N, isLNat XS), N, XS), U51#(X1, active X2, X3) -> U51#(X1, X2, X3)) (active# sel(N, XS) -> U51#(and(isNatural N, isLNat XS), N, XS), U51#(mark X1, X2, X3) -> U51#(X1, X2, X3)) (active# sel(N, XS) -> U51#(and(isNatural N, isLNat XS), N, XS), U51#(active X1, X2, X3) -> U51#(X1, X2, X3)) (active# afterNth(N, XS) -> U11#(and(isNatural N, isLNat XS), N, XS), U11#(X1, X2, mark X3) -> U11#(X1, X2, X3)) (active# afterNth(N, XS) -> U11#(and(isNatural N, isLNat XS), N, XS), U11#(X1, X2, active X3) -> U11#(X1, X2, X3)) (active# afterNth(N, XS) -> U11#(and(isNatural N, isLNat XS), N, XS), U11#(X1, mark X2, X3) -> U11#(X1, X2, X3)) (active# afterNth(N, XS) -> U11#(and(isNatural N, isLNat XS), N, XS), U11#(X1, active X2, X3) -> U11#(X1, X2, X3)) (active# afterNth(N, XS) -> U11#(and(isNatural N, isLNat XS), N, XS), U11#(mark X1, X2, X3) -> U11#(X1, X2, X3)) (active# afterNth(N, XS) -> U11#(and(isNatural N, isLNat XS), N, XS), U11#(active X1, X2, X3) -> U11#(X1, X2, X3)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# fst X -> mark# X) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# fst X -> fst# mark X) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# fst X -> active# fst mark X) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# splitAt(X1, X2) -> mark# X1) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# splitAt(X1, X2) -> mark# X2) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U101(X1, X2, X3) -> mark# X1) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# tt() -> active# tt()) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# snd X -> mark# X) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# snd X -> active# snd mark X) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# snd X -> snd# mark X) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U11(X1, X2, X3) -> mark# X1) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U21(X1, X2) -> mark# X1) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U21(X1, X2) -> active# U21(mark X1, X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U21(X1, X2) -> U21#(mark X1, X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U31(X1, X2) -> mark# X1) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U31(X1, X2) -> active# U31(mark X1, X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U31(X1, X2) -> U31#(mark X1, X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# cons(X1, X2) -> mark# X1) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# cons(X1, X2) -> active# cons(mark X1, X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# cons(X1, X2) -> cons#(mark X1, X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# natsFrom X -> mark# X) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# natsFrom X -> active# natsFrom mark X) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# natsFrom X -> natsFrom# mark X) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# s X -> mark# X) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# s X -> active# s mark X) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# s X -> s# mark X) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U41(X1, X2) -> mark# X1) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U41(X1, X2) -> active# U41(mark X1, X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U41(X1, X2) -> U41#(mark X1, X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# head X -> mark# X) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# head X -> active# head mark X) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# head X -> head# mark X) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# afterNth(X1, X2) -> mark# X1) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# afterNth(X1, X2) -> mark# X2) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U51(X1, X2, X3) -> mark# X1) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U61(X1, X2) -> mark# X1) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U61(X1, X2) -> active# U61(mark X1, X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U61(X1, X2) -> U61#(mark X1, X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# pair(X1, X2) -> mark# X1) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# pair(X1, X2) -> mark# X2) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# nil() -> active# nil()) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U71(X1, X2) -> mark# X1) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U71(X1, X2) -> active# U71(mark X1, X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U71(X1, X2) -> U71#(mark X1, X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U82(X1, X2) -> mark# X1) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U82(X1, X2) -> active# U82(mark X1, X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U82(X1, X2) -> U82#(mark X1, X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U81(X1, X2, X3, X4) -> mark# X1) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U91(X1, X2) -> mark# X1) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U91(X1, X2) -> active# U91(mark X1, X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U91(X1, X2) -> U91#(mark X1, X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# and(X1, X2) -> mark# X1) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# and(X1, X2) -> active# and(mark X1, X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# and(X1, X2) -> and#(mark X1, X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# isNatural X -> active# isNatural X) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# isLNat X -> active# isLNat X) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# isPLNat X -> active# isPLNat X) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# tail X -> mark# X) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# tail X -> active# tail mark X) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# tail X -> tail# mark X) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# take(X1, X2) -> mark# X1) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# take(X1, X2) -> mark# X2) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# take(X1, X2) -> active# take(mark X1, mark X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# take(X1, X2) -> take#(mark X1, mark X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# 0() -> active# 0()) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# sel(X1, X2) -> mark# X1) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# sel(X1, X2) -> mark# X2) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# fst X -> mark# X) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# fst X -> fst# mark X) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# fst X -> active# fst mark X) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# splitAt(X1, X2) -> mark# X1) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# splitAt(X1, X2) -> mark# X2) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U101(X1, X2, X3) -> mark# X1) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# tt() -> active# tt()) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# snd X -> mark# X) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# snd X -> active# snd mark X) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# snd X -> snd# mark X) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U11(X1, X2, X3) -> mark# X1) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U21(X1, X2) -> mark# X1) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U21(X1, X2) -> active# U21(mark X1, X2)) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U21(X1, X2) -> U21#(mark X1, X2)) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U31(X1, X2) -> mark# X1) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U31(X1, X2) -> active# U31(mark X1, X2)) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U31(X1, X2) -> U31#(mark X1, X2)) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# cons(X1, X2) -> mark# X1) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# cons(X1, X2) -> active# cons(mark X1, X2)) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# cons(X1, X2) -> cons#(mark X1, X2)) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# natsFrom X -> mark# X) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# natsFrom X -> active# natsFrom mark X) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# natsFrom X -> natsFrom# mark X) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# s X -> mark# X) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# s X -> active# s mark X) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# s X -> s# mark X) (active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), mark# U41(X1, X2) -> 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isNatural# X) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# splitAt(s N, cons(X, XS)) -> isLNat# XS) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# splitAt(0(), XS) -> U71#(isLNat XS, XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# splitAt(0(), XS) -> isLNat# XS) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# U101(tt(), N, XS) -> fst# splitAt(N, XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# U101(tt(), N, XS) -> splitAt#(N, XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# snd pair(X, Y) -> U61#(and(isLNat X, isLNat Y), Y)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# snd pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# snd pair(X, Y) -> isLNat# X) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# snd pair(X, Y) -> isLNat# Y) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# U11(tt(), N, XS) -> mark# snd splitAt(N, XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# U11(tt(), N, XS) -> splitAt#(N, XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# U11(tt(), N, XS) -> snd# splitAt(N, XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# U21(tt(), X) -> mark# X) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# U31(tt(), N) -> mark# N) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# natsFrom N -> mark# U41(isNatural N, N)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# natsFrom N -> U41#(isNatural N, N)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# natsFrom N -> isNatural# N) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# U41(tt(), N) -> mark# cons(N, natsFrom s N)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# U41(tt(), N) -> cons#(N, natsFrom s N)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# U41(tt(), N) -> natsFrom# s N) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# U41(tt(), N) -> s# N) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# head cons(N, XS) -> U31#(and(isNatural N, isLNat XS), N)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# head cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# head cons(N, XS) -> isNatural# N) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# head cons(N, XS) -> isLNat# XS) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# afterNth(N, XS) -> U11#(and(isNatural N, isLNat XS), N, XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# afterNth(N, XS) -> and#(isNatural N, isLNat XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# afterNth(N, XS) -> isNatural# N) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# afterNth(N, XS) -> isLNat# XS) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# U51(tt(), N, XS) -> mark# head afterNth(N, XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# U51(tt(), N, XS) -> head# afterNth(N, XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# U51(tt(), N, XS) -> afterNth#(N, XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# U61(tt(), Y) -> mark# Y) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# U71(tt(), XS) -> mark# pair(nil(), XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# U71(tt(), XS) -> pair#(nil(), XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# U82(pair(YS, ZS), X) -> cons#(X, YS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# U82(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# U81(tt(), N, X, XS) -> splitAt#(N, XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# U81(tt(), N, X, XS) -> U82#(splitAt(N, XS), X)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# U91(tt(), XS) -> mark# XS) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# and(tt(), X) -> mark# X) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isNatural s V1 -> mark# isNatural V1) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isNatural s V1 -> isNatural# V1) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isNatural head V1 -> mark# isLNat V1) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isNatural head V1 -> isLNat# V1) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isNatural 0() -> mark# tt()) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isNatural sel(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isNatural sel(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isNatural sel(V1, V2) -> isNatural# V1) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isNatural sel(V1, V2) -> isLNat# V2) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isLNat fst V1 -> mark# isPLNat V1) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isLNat fst V1 -> isPLNat# V1) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isLNat snd V1 -> mark# isPLNat V1) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isLNat snd V1 -> isPLNat# V1) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isLNat cons(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isLNat cons(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isLNat cons(V1, V2) -> isNatural# V1) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isLNat cons(V1, V2) -> isLNat# V2) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isLNat natsFrom V1 -> mark# isNatural V1) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isLNat natsFrom V1 -> isNatural# V1) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isLNat afterNth(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isLNat afterNth(V1, V2) -> isNatural# V1) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isLNat afterNth(V1, V2) -> isLNat# V2) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isLNat nil() -> mark# tt()) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isLNat tail V1 -> mark# isLNat V1) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isLNat tail V1 -> isLNat# V1) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isLNat take(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isLNat take(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isLNat take(V1, V2) -> isNatural# V1) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isLNat take(V1, V2) -> isLNat# V2) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isPLNat splitAt(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isPLNat splitAt(V1, V2) -> isNatural# V1) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isPLNat splitAt(V1, V2) -> isLNat# V2) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isPLNat pair(V1, V2) -> and#(isLNat V1, isLNat V2)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isPLNat pair(V1, V2) -> isLNat# V1) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# isPLNat pair(V1, V2) -> isLNat# V2) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# tail cons(N, XS) -> U91#(and(isNatural N, isLNat XS), XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# tail cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# tail cons(N, XS) -> isNatural# N) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# tail cons(N, XS) -> isLNat# XS) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# take(N, XS) -> U101#(and(isNatural N, isLNat XS), N, XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# take(N, XS) -> and#(isNatural N, isLNat XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# take(N, XS) -> isNatural# N) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# take(N, XS) -> isLNat# XS) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# sel(N, XS) -> U51#(and(isNatural N, isLNat XS), N, XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# sel(N, XS) -> and#(isNatural N, isLNat XS)) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# sel(N, XS) -> isNatural# N) (mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# sel(N, XS) -> isLNat# XS) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# fst pair(X, Y) -> U21#(and(isLNat X, isLNat Y), X)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# fst pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# fst pair(X, Y) -> isLNat# X) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# fst pair(X, Y) -> isLNat# Y) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# splitAt(s N, cons(X, XS)) -> U81#(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# splitAt(s N, cons(X, XS)) -> and#(isNatural N, and(isNatural X, isLNat XS))) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# splitAt(s N, cons(X, XS)) -> and#(isNatural X, isLNat XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# splitAt(s N, cons(X, XS)) -> isNatural# N) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# splitAt(s N, cons(X, XS)) -> isNatural# X) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# splitAt(s N, cons(X, XS)) -> isLNat# XS) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# splitAt(0(), XS) -> U71#(isLNat XS, XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# splitAt(0(), XS) -> isLNat# XS) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# U101(tt(), N, XS) -> fst# splitAt(N, XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# U101(tt(), N, XS) -> splitAt#(N, XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# snd pair(X, Y) -> U61#(and(isLNat X, isLNat Y), Y)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# snd pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# snd pair(X, Y) -> isLNat# X) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# snd pair(X, Y) -> isLNat# Y) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# U11(tt(), N, XS) -> mark# snd splitAt(N, XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# U11(tt(), N, XS) -> splitAt#(N, XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# U11(tt(), N, XS) -> snd# splitAt(N, XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# U21(tt(), X) -> mark# X) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# U31(tt(), N) -> mark# N) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# natsFrom N -> mark# U41(isNatural N, N)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# natsFrom N -> U41#(isNatural N, N)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# natsFrom N -> isNatural# N) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# U41(tt(), N) -> mark# cons(N, natsFrom s N)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# U41(tt(), N) -> cons#(N, natsFrom s N)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# U41(tt(), N) -> natsFrom# s N) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# U41(tt(), N) -> s# N) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# head cons(N, XS) -> U31#(and(isNatural N, isLNat XS), N)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# head cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# head cons(N, XS) -> isNatural# N) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# head cons(N, XS) -> isLNat# XS) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# afterNth(N, XS) -> U11#(and(isNatural N, isLNat XS), N, XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# afterNth(N, XS) -> and#(isNatural N, isLNat XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# afterNth(N, XS) -> isNatural# N) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# afterNth(N, XS) -> isLNat# XS) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# U51(tt(), N, XS) -> mark# head afterNth(N, XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# U51(tt(), N, XS) -> head# afterNth(N, XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# U51(tt(), N, XS) -> afterNth#(N, XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# U61(tt(), Y) -> mark# Y) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# U71(tt(), XS) -> mark# pair(nil(), XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# U71(tt(), XS) -> pair#(nil(), XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# U82(pair(YS, ZS), X) -> cons#(X, YS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# U82(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# U81(tt(), N, X, XS) -> splitAt#(N, XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# U81(tt(), N, X, XS) -> U82#(splitAt(N, XS), X)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# U91(tt(), XS) -> mark# XS) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# and(tt(), X) -> mark# X) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isNatural s V1 -> mark# isNatural V1) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isNatural s V1 -> isNatural# V1) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isNatural head V1 -> mark# isLNat V1) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isNatural head V1 -> isLNat# V1) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isNatural 0() -> mark# tt()) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isNatural sel(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isNatural sel(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isNatural sel(V1, V2) -> isNatural# V1) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isNatural sel(V1, V2) -> isLNat# V2) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isLNat fst V1 -> mark# isPLNat V1) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isLNat fst V1 -> isPLNat# V1) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isLNat snd V1 -> mark# isPLNat V1) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isLNat snd V1 -> isPLNat# V1) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isLNat cons(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isLNat cons(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isLNat cons(V1, V2) -> isNatural# V1) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isLNat cons(V1, V2) -> isLNat# V2) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isLNat natsFrom V1 -> mark# isNatural V1) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isLNat natsFrom V1 -> isNatural# V1) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isLNat afterNth(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isLNat afterNth(V1, V2) -> isNatural# V1) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isLNat afterNth(V1, V2) -> isLNat# V2) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isLNat nil() -> mark# tt()) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isLNat tail V1 -> mark# isLNat V1) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isLNat tail V1 -> isLNat# V1) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isLNat take(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isLNat take(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isLNat take(V1, V2) -> isNatural# V1) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isLNat take(V1, V2) -> isLNat# V2) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isPLNat splitAt(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isPLNat splitAt(V1, V2) -> isNatural# V1) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isPLNat splitAt(V1, V2) -> isLNat# V2) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isPLNat pair(V1, V2) -> and#(isLNat V1, isLNat V2)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isPLNat pair(V1, V2) -> isLNat# V1) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# isPLNat pair(V1, V2) -> isLNat# V2) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# tail cons(N, XS) -> U91#(and(isNatural N, isLNat XS), XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# tail cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# tail cons(N, XS) -> isNatural# N) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# tail cons(N, XS) -> isLNat# XS) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# take(N, XS) -> U101#(and(isNatural N, isLNat XS), N, XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# take(N, XS) -> and#(isNatural N, isLNat XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# take(N, XS) -> isNatural# N) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# take(N, XS) -> isLNat# XS) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# sel(N, XS) -> U51#(and(isNatural N, isLNat XS), N, XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# sel(N, XS) -> and#(isNatural N, isLNat XS)) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# sel(N, XS) -> isNatural# N) (mark# pair(X1, X2) -> active# pair(mark X1, mark X2), active# sel(N, XS) -> isLNat# XS) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# fst pair(X, Y) -> U21#(and(isLNat X, isLNat Y), X)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# fst pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# fst pair(X, Y) -> isLNat# X) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# fst pair(X, Y) -> isLNat# Y) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# splitAt(s N, cons(X, XS)) -> U81#(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# splitAt(s N, cons(X, XS)) -> and#(isNatural N, and(isNatural X, isLNat XS))) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# splitAt(s N, cons(X, XS)) -> and#(isNatural X, isLNat XS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# splitAt(s N, cons(X, XS)) -> isNatural# N) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# splitAt(s N, cons(X, XS)) -> isNatural# X) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# splitAt(s N, cons(X, XS)) -> isLNat# XS) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# splitAt(0(), XS) -> U71#(isLNat XS, XS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# splitAt(0(), XS) -> isLNat# XS) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# U101(tt(), N, XS) -> fst# splitAt(N, XS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# U101(tt(), N, XS) -> splitAt#(N, XS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# snd pair(X, Y) -> U61#(and(isLNat X, isLNat Y), Y)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# snd pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# snd pair(X, Y) -> isLNat# X) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# snd pair(X, Y) -> isLNat# Y) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# U11(tt(), N, XS) -> mark# snd splitAt(N, XS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# U11(tt(), N, XS) -> splitAt#(N, XS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# U11(tt(), N, XS) -> snd# splitAt(N, XS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# U21(tt(), X) -> mark# X) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# U31(tt(), N) -> mark# N) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# natsFrom N -> mark# U41(isNatural N, N)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# natsFrom N -> U41#(isNatural N, N)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# natsFrom N -> isNatural# N) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# U41(tt(), N) -> mark# cons(N, natsFrom s N)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# U41(tt(), N) -> cons#(N, natsFrom s N)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# U41(tt(), N) -> natsFrom# s N) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# U41(tt(), N) -> s# N) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# head cons(N, XS) -> U31#(and(isNatural N, isLNat XS), N)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# head cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# head cons(N, XS) -> isNatural# N) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# head cons(N, XS) -> isLNat# XS) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# afterNth(N, XS) -> U11#(and(isNatural N, isLNat XS), N, XS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# afterNth(N, XS) -> and#(isNatural N, isLNat XS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# afterNth(N, XS) -> isNatural# N) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# afterNth(N, XS) -> isLNat# XS) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# U51(tt(), N, XS) -> mark# head afterNth(N, XS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# U51(tt(), N, XS) -> head# afterNth(N, XS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# U51(tt(), N, XS) -> afterNth#(N, XS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# U61(tt(), Y) -> mark# Y) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# U71(tt(), XS) -> mark# pair(nil(), XS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# U71(tt(), XS) -> pair#(nil(), XS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# U82(pair(YS, ZS), X) -> cons#(X, YS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# U82(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# U81(tt(), N, X, XS) -> splitAt#(N, XS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# U81(tt(), N, X, XS) -> U82#(splitAt(N, XS), X)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# U91(tt(), XS) -> mark# XS) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# and(tt(), X) -> mark# X) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isNatural s V1 -> mark# isNatural V1) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isNatural s V1 -> isNatural# V1) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isNatural head V1 -> mark# isLNat V1) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isNatural head V1 -> isLNat# V1) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isNatural 0() -> mark# tt()) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isNatural sel(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isNatural sel(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isNatural sel(V1, V2) -> isNatural# V1) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isNatural sel(V1, V2) -> isLNat# V2) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isLNat fst V1 -> mark# isPLNat V1) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isLNat fst V1 -> isPLNat# V1) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isLNat snd V1 -> mark# isPLNat V1) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isLNat snd V1 -> isPLNat# V1) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isLNat cons(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isLNat cons(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isLNat cons(V1, V2) -> isNatural# V1) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isLNat cons(V1, V2) -> isLNat# V2) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isLNat natsFrom V1 -> mark# isNatural V1) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isLNat natsFrom V1 -> isNatural# V1) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isLNat afterNth(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isLNat afterNth(V1, V2) -> isNatural# V1) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isLNat afterNth(V1, V2) -> isLNat# V2) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isLNat nil() -> mark# tt()) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isLNat tail V1 -> mark# isLNat V1) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isLNat tail V1 -> isLNat# V1) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isLNat take(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isLNat take(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isLNat take(V1, V2) -> isNatural# V1) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isLNat take(V1, V2) -> isLNat# V2) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isPLNat splitAt(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isPLNat splitAt(V1, V2) -> isNatural# V1) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isPLNat splitAt(V1, V2) -> isLNat# V2) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isPLNat pair(V1, V2) -> and#(isLNat V1, isLNat V2)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isPLNat pair(V1, V2) -> isLNat# V1) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# isPLNat pair(V1, V2) -> isLNat# V2) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# tail cons(N, XS) -> U91#(and(isNatural N, isLNat XS), XS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# tail cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# tail cons(N, XS) -> isNatural# N) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# tail cons(N, XS) -> isLNat# XS) (mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), active# take(N, XS) -> mark# 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isLNat tail V1 -> mark# isLNat V1, mark# U81(X1, X2, X3, X4) -> mark# X1) (active# isLNat tail V1 -> mark# isLNat V1, mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (active# isLNat tail V1 -> mark# isLNat V1, mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (active# isLNat tail V1 -> mark# isLNat V1, mark# U91(X1, X2) -> mark# X1) (active# isLNat tail V1 -> mark# isLNat V1, mark# U91(X1, X2) -> active# U91(mark X1, X2)) (active# isLNat tail V1 -> mark# isLNat V1, mark# U91(X1, X2) -> U91#(mark X1, X2)) (active# isLNat tail V1 -> mark# isLNat V1, mark# and(X1, X2) -> mark# X1) (active# isLNat tail V1 -> mark# isLNat V1, mark# and(X1, X2) -> active# and(mark X1, X2)) (active# isLNat tail V1 -> mark# isLNat V1, mark# and(X1, X2) -> and#(mark X1, X2)) (active# isLNat tail V1 -> mark# isLNat V1, mark# isNatural X -> active# isNatural X) (active# isLNat tail V1 -> mark# isLNat V1, mark# isLNat X -> active# isLNat X) (active# isLNat tail V1 -> mark# isLNat V1, mark# 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isNatural head V1 -> mark# isLNat V1, mark# cons(X1, X2) -> active# cons(mark X1, X2)) (active# isNatural head V1 -> mark# isLNat V1, mark# cons(X1, X2) -> cons#(mark X1, X2)) (active# isNatural head V1 -> mark# isLNat V1, mark# natsFrom X -> mark# X) (active# isNatural head V1 -> mark# isLNat V1, mark# natsFrom X -> active# natsFrom mark X) (active# isNatural head V1 -> mark# isLNat V1, mark# natsFrom X -> natsFrom# mark X) (active# isNatural head V1 -> mark# isLNat V1, mark# s X -> mark# X) (active# isNatural head V1 -> mark# isLNat V1, mark# s X -> active# s mark X) (active# isNatural head V1 -> mark# isLNat V1, mark# s X -> s# mark X) (active# isNatural head V1 -> mark# isLNat V1, mark# U41(X1, X2) -> mark# X1) (active# isNatural head V1 -> mark# isLNat V1, mark# U41(X1, X2) -> active# U41(mark X1, X2)) (active# isNatural head V1 -> mark# isLNat V1, mark# U41(X1, X2) -> U41#(mark X1, X2)) (active# isNatural head V1 -> mark# isLNat V1, mark# head X -> mark# X) (active# isNatural 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X2)) (active# isNatural head V1 -> mark# isLNat V1, mark# U81(X1, X2, X3, X4) -> mark# X1) (active# isNatural head V1 -> mark# isLNat V1, mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (active# isNatural head V1 -> mark# isLNat V1, mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (active# isNatural head V1 -> mark# isLNat V1, mark# U91(X1, X2) -> mark# X1) (active# isNatural head V1 -> mark# isLNat V1, mark# U91(X1, X2) -> active# U91(mark X1, X2)) (active# isNatural head V1 -> mark# isLNat V1, mark# U91(X1, X2) -> U91#(mark X1, X2)) (active# isNatural head V1 -> mark# isLNat V1, mark# and(X1, X2) -> mark# X1) (active# isNatural head V1 -> mark# isLNat V1, mark# and(X1, X2) -> active# and(mark X1, X2)) (active# isNatural head V1 -> mark# isLNat V1, mark# and(X1, X2) -> and#(mark X1, X2)) (active# isNatural head V1 -> mark# isLNat V1, mark# isNatural X -> active# isNatural X) (active# isNatural head V1 -> mark# isLNat V1, mark# isLNat X -> active# isLNat X) (active# isNatural head V1 -> mark# isLNat V1, mark# isPLNat X -> active# isPLNat X) (active# isNatural head V1 -> mark# isLNat V1, mark# tail X -> mark# X) (active# isNatural head V1 -> mark# isLNat V1, mark# tail X -> active# tail mark X) (active# isNatural head V1 -> mark# isLNat V1, mark# tail X -> tail# mark X) (active# isNatural head V1 -> mark# isLNat V1, mark# take(X1, X2) -> mark# X1) (active# isNatural head V1 -> mark# isLNat V1, mark# take(X1, X2) -> mark# X2) (active# isNatural head V1 -> mark# isLNat V1, mark# take(X1, X2) -> active# take(mark X1, mark X2)) (active# isNatural head V1 -> mark# isLNat V1, mark# take(X1, X2) -> take#(mark X1, mark X2)) (active# isNatural head V1 -> mark# isLNat V1, mark# 0() -> active# 0()) (active# isNatural head V1 -> mark# isLNat V1, mark# sel(X1, X2) -> mark# X1) (active# isNatural head V1 -> mark# isLNat V1, mark# sel(X1, X2) -> mark# X2) (active# isNatural head V1 -> mark# isLNat V1, mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) 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U71#(mark X1, X2), U71#(active X1, X2) -> U71#(X1, X2)) (mark# U41(X1, X2) -> U41#(mark X1, X2), U41#(X1, mark X2) -> U41#(X1, X2)) (mark# U41(X1, X2) -> U41#(mark X1, X2), U41#(X1, active X2) -> U41#(X1, X2)) (mark# U41(X1, X2) -> U41#(mark X1, X2), U41#(mark X1, X2) -> U41#(X1, X2)) (mark# U41(X1, X2) -> U41#(mark X1, X2), U41#(active X1, X2) -> U41#(X1, X2)) (mark# U31(X1, X2) -> U31#(mark X1, X2), U31#(X1, mark X2) -> U31#(X1, X2)) (mark# U31(X1, X2) -> U31#(mark X1, X2), U31#(X1, active X2) -> U31#(X1, X2)) (mark# U31(X1, X2) -> U31#(mark X1, X2), U31#(mark X1, X2) -> U31#(X1, X2)) (mark# U31(X1, X2) -> U31#(mark X1, X2), U31#(active X1, X2) -> U31#(X1, X2)) (active# isPLNat pair(V1, V2) -> isLNat# V1, isLNat# mark X -> isLNat# X) (active# isPLNat pair(V1, V2) -> isLNat# V1, isLNat# active X -> isLNat# X) (active# isLNat take(V1, V2) -> isNatural# V1, isNatural# mark X -> isNatural# X) (active# isLNat take(V1, V2) -> isNatural# V1, isNatural# active X -> isNatural# X) (active# isLNat afterNth(V1, V2) -> isNatural# V1, isNatural# mark X -> isNatural# X) (active# isLNat afterNth(V1, V2) -> isNatural# V1, isNatural# active X -> isNatural# X) (active# isLNat cons(V1, V2) -> isNatural# V1, isNatural# mark X -> isNatural# X) (active# isLNat cons(V1, V2) -> isNatural# V1, isNatural# active X -> isNatural# X) (active# isLNat fst V1 -> isPLNat# V1, isPLNat# mark X -> isPLNat# X) (active# isLNat fst V1 -> isPLNat# V1, isPLNat# active X -> isPLNat# X) (active# isNatural head V1 -> isLNat# V1, isLNat# mark X -> isLNat# X) (active# isNatural head V1 -> isLNat# V1, isLNat# active X -> isLNat# X) (active# U81(tt(), N, X, XS) -> splitAt#(N, XS), splitAt#(X1, mark X2) -> splitAt#(X1, X2)) (active# U81(tt(), N, X, XS) -> splitAt#(N, XS), splitAt#(X1, active X2) -> splitAt#(X1, X2)) (active# U81(tt(), N, X, XS) -> splitAt#(N, XS), splitAt#(mark X1, X2) -> splitAt#(X1, X2)) (active# U81(tt(), N, X, XS) -> splitAt#(N, XS), splitAt#(active X1, X2) -> splitAt#(X1, X2)) (active# U11(tt(), N, XS) -> splitAt#(N, XS), splitAt#(X1, mark X2) -> splitAt#(X1, X2)) (active# U11(tt(), N, XS) -> splitAt#(N, XS), splitAt#(X1, active X2) -> splitAt#(X1, X2)) (active# U11(tt(), N, XS) -> splitAt#(N, XS), splitAt#(mark X1, X2) -> splitAt#(X1, X2)) (active# U11(tt(), N, XS) -> splitAt#(N, XS), splitAt#(active X1, X2) -> splitAt#(X1, X2)) (active# splitAt(s N, cons(X, XS)) -> and#(isNatural N, and(isNatural X, isLNat XS)), and#(X1, mark X2) -> and#(X1, X2)) (active# splitAt(s N, cons(X, XS)) -> and#(isNatural N, and(isNatural X, isLNat XS)), and#(X1, active X2) -> and#(X1, X2)) (active# splitAt(s N, cons(X, XS)) -> and#(isNatural N, and(isNatural X, isLNat XS)), and#(mark X1, X2) -> and#(X1, X2)) (active# splitAt(s N, cons(X, XS)) -> and#(isNatural N, and(isNatural X, isLNat XS)), and#(active X1, X2) -> and#(X1, X2)) (active# splitAt(0(), XS) -> U71#(isLNat XS, XS), U71#(X1, mark X2) -> U71#(X1, X2)) (active# splitAt(0(), XS) -> U71#(isLNat XS, XS), U71#(X1, active X2) -> U71#(X1, X2)) (active# splitAt(0(), XS) -> U71#(isLNat XS, XS), U71#(mark X1, X2) -> U71#(X1, X2)) (active# splitAt(0(), XS) -> U71#(isLNat XS, XS), U71#(active X1, X2) -> U71#(X1, X2)) (mark# take(X1, X2) -> mark# X2, mark# fst X -> mark# X) (mark# take(X1, X2) -> mark# X2, mark# fst X -> fst# mark X) (mark# take(X1, X2) -> mark# X2, mark# fst X -> active# fst mark X) (mark# take(X1, X2) -> mark# X2, mark# splitAt(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X2, mark# splitAt(X1, X2) -> mark# X2) (mark# take(X1, X2) -> mark# X2, mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (mark# take(X1, X2) -> mark# X2, mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (mark# take(X1, X2) -> mark# X2, mark# U101(X1, X2, X3) -> mark# X1) (mark# take(X1, X2) -> mark# X2, mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (mark# take(X1, X2) -> mark# X2, mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (mark# take(X1, X2) -> mark# X2, mark# tt() -> active# tt()) (mark# take(X1, X2) -> mark# X2, mark# snd X -> mark# X) (mark# take(X1, X2) -> mark# X2, mark# snd X -> active# snd mark X) (mark# take(X1, X2) -> mark# X2, mark# snd X -> snd# mark X) (mark# take(X1, X2) -> mark# X2, mark# U11(X1, X2, X3) -> mark# X1) (mark# take(X1, X2) -> mark# X2, mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (mark# take(X1, X2) -> mark# X2, mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (mark# take(X1, X2) -> mark# X2, mark# U21(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X2, mark# U21(X1, X2) -> active# U21(mark X1, X2)) (mark# take(X1, X2) -> mark# X2, mark# U21(X1, X2) -> U21#(mark X1, X2)) (mark# take(X1, X2) -> mark# X2, mark# U31(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X2, mark# U31(X1, X2) -> active# U31(mark X1, X2)) (mark# take(X1, X2) -> mark# X2, mark# U31(X1, X2) -> U31#(mark X1, X2)) (mark# take(X1, X2) -> mark# X2, mark# cons(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X2, mark# cons(X1, X2) -> active# cons(mark X1, X2)) (mark# take(X1, X2) -> mark# X2, mark# cons(X1, X2) -> cons#(mark X1, X2)) (mark# take(X1, X2) -> mark# X2, mark# natsFrom X -> mark# X) (mark# take(X1, X2) -> mark# X2, mark# natsFrom X -> active# natsFrom mark X) (mark# take(X1, X2) -> mark# X2, mark# natsFrom X -> natsFrom# mark X) (mark# take(X1, X2) -> mark# X2, mark# s X -> mark# X) (mark# take(X1, X2) -> mark# X2, mark# s X -> active# s mark X) (mark# take(X1, X2) -> mark# X2, mark# s X -> s# mark X) (mark# take(X1, X2) -> mark# X2, mark# U41(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X2, mark# U41(X1, X2) -> active# U41(mark X1, X2)) (mark# take(X1, X2) -> mark# X2, mark# U41(X1, X2) -> U41#(mark X1, X2)) (mark# take(X1, X2) -> mark# X2, mark# head X -> mark# X) (mark# take(X1, X2) -> mark# X2, mark# head X -> active# head mark X) (mark# take(X1, X2) -> mark# X2, mark# head X -> head# mark X) (mark# take(X1, X2) -> mark# X2, mark# afterNth(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X2, mark# afterNth(X1, X2) -> mark# X2) (mark# take(X1, X2) -> mark# X2, mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (mark# take(X1, X2) -> mark# X2, mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (mark# take(X1, X2) -> mark# X2, mark# U51(X1, X2, X3) -> mark# X1) (mark# take(X1, X2) -> mark# X2, mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (mark# take(X1, X2) -> mark# X2, mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (mark# take(X1, X2) -> mark# X2, mark# U61(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X2, mark# U61(X1, X2) -> active# U61(mark X1, X2)) (mark# take(X1, X2) -> mark# X2, mark# U61(X1, X2) -> U61#(mark X1, X2)) (mark# take(X1, X2) -> mark# X2, mark# pair(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X2, mark# pair(X1, X2) -> mark# X2) (mark# take(X1, X2) -> mark# X2, mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (mark# take(X1, X2) -> mark# X2, mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (mark# take(X1, X2) -> mark# X2, mark# nil() -> active# nil()) (mark# take(X1, X2) -> mark# X2, mark# U71(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X2, mark# U71(X1, X2) -> active# U71(mark X1, X2)) (mark# take(X1, X2) -> mark# X2, mark# U71(X1, X2) -> U71#(mark X1, X2)) (mark# take(X1, X2) -> mark# X2, mark# U82(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X2, mark# U82(X1, X2) -> active# U82(mark X1, X2)) (mark# take(X1, X2) -> mark# X2, mark# U82(X1, X2) -> U82#(mark X1, X2)) (mark# take(X1, X2) -> mark# X2, mark# U81(X1, X2, X3, X4) -> mark# X1) (mark# take(X1, X2) -> mark# X2, mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (mark# take(X1, X2) -> mark# X2, mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (mark# take(X1, X2) -> mark# X2, mark# U91(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X2, mark# U91(X1, X2) -> active# U91(mark X1, X2)) (mark# take(X1, X2) -> mark# X2, mark# U91(X1, X2) -> U91#(mark X1, X2)) (mark# take(X1, X2) -> mark# X2, mark# and(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X2, mark# and(X1, X2) -> active# and(mark X1, X2)) (mark# take(X1, X2) -> mark# X2, mark# and(X1, X2) -> and#(mark X1, X2)) (mark# take(X1, X2) -> mark# X2, mark# isNatural X -> active# isNatural X) (mark# take(X1, X2) -> mark# X2, mark# isLNat X -> active# isLNat X) (mark# take(X1, X2) -> mark# X2, mark# isPLNat X -> active# isPLNat X) (mark# take(X1, X2) -> mark# X2, mark# tail X -> mark# X) (mark# take(X1, X2) -> mark# X2, mark# tail X -> active# tail mark X) (mark# take(X1, X2) -> mark# X2, mark# tail X -> tail# mark X) (mark# take(X1, X2) -> mark# X2, mark# take(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X2, mark# take(X1, X2) -> mark# X2) (mark# take(X1, X2) -> mark# X2, mark# take(X1, X2) -> active# take(mark X1, mark X2)) (mark# take(X1, X2) -> mark# X2, mark# take(X1, X2) -> take#(mark X1, mark X2)) (mark# take(X1, X2) -> mark# X2, mark# 0() -> active# 0()) (mark# take(X1, X2) -> mark# X2, mark# sel(X1, X2) -> mark# X1) (mark# take(X1, X2) -> mark# X2, mark# sel(X1, X2) -> mark# X2) (mark# take(X1, X2) -> mark# X2, mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (mark# take(X1, X2) -> mark# X2, mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# fst X -> mark# X) (mark# afterNth(X1, X2) -> mark# X2, mark# fst X -> fst# mark X) (mark# afterNth(X1, X2) -> mark# X2, mark# fst X -> active# fst mark X) (mark# afterNth(X1, X2) -> mark# X2, mark# splitAt(X1, X2) -> mark# X1) (mark# afterNth(X1, X2) -> mark# X2, mark# splitAt(X1, X2) -> mark# X2) (mark# afterNth(X1, X2) -> mark# X2, mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# U101(X1, X2, X3) -> mark# X1) (mark# afterNth(X1, X2) -> mark# X2, mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (mark# afterNth(X1, X2) -> mark# X2, mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (mark# afterNth(X1, X2) -> mark# X2, mark# tt() -> active# tt()) (mark# afterNth(X1, X2) -> mark# X2, mark# snd X -> mark# X) (mark# afterNth(X1, X2) -> mark# X2, mark# snd X -> active# snd mark X) (mark# afterNth(X1, X2) -> mark# X2, mark# snd X -> snd# mark X) (mark# afterNth(X1, X2) -> mark# X2, mark# U11(X1, X2, X3) -> mark# X1) (mark# afterNth(X1, X2) -> mark# X2, mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (mark# afterNth(X1, X2) -> mark# X2, mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (mark# afterNth(X1, X2) -> mark# X2, mark# U21(X1, X2) -> mark# X1) (mark# afterNth(X1, X2) -> mark# X2, mark# U21(X1, X2) -> active# U21(mark X1, X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# U21(X1, X2) -> U21#(mark X1, X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# U31(X1, X2) -> mark# X1) (mark# afterNth(X1, X2) -> mark# X2, mark# U31(X1, X2) -> active# U31(mark X1, X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# U31(X1, X2) -> U31#(mark X1, X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# cons(X1, X2) -> mark# X1) (mark# afterNth(X1, X2) -> mark# X2, mark# cons(X1, X2) -> active# cons(mark X1, X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# cons(X1, X2) -> cons#(mark X1, X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# natsFrom X -> mark# X) (mark# afterNth(X1, X2) -> mark# X2, mark# natsFrom X -> active# natsFrom mark X) (mark# afterNth(X1, X2) -> mark# X2, mark# natsFrom X -> natsFrom# mark X) (mark# afterNth(X1, X2) -> mark# X2, mark# s X -> mark# X) (mark# afterNth(X1, X2) -> mark# X2, mark# s X -> active# s mark X) (mark# afterNth(X1, X2) -> mark# X2, mark# s X -> s# mark X) (mark# afterNth(X1, X2) -> mark# X2, mark# U41(X1, X2) -> mark# X1) (mark# afterNth(X1, X2) -> mark# X2, mark# U41(X1, X2) -> active# U41(mark X1, X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# U41(X1, X2) -> U41#(mark X1, X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# head X -> mark# X) (mark# afterNth(X1, X2) -> mark# X2, mark# head X -> active# head mark X) (mark# afterNth(X1, X2) -> mark# X2, mark# head X -> head# mark X) (mark# afterNth(X1, X2) -> mark# X2, mark# afterNth(X1, X2) -> mark# X1) (mark# afterNth(X1, X2) -> mark# X2, mark# afterNth(X1, X2) -> mark# X2) (mark# afterNth(X1, X2) -> mark# X2, mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# U51(X1, X2, X3) -> mark# X1) (mark# afterNth(X1, X2) -> mark# X2, mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (mark# afterNth(X1, X2) -> mark# X2, mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (mark# afterNth(X1, X2) -> mark# X2, mark# U61(X1, X2) -> mark# X1) (mark# afterNth(X1, X2) -> mark# X2, mark# U61(X1, X2) -> active# U61(mark X1, X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# U61(X1, X2) -> U61#(mark X1, X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# pair(X1, X2) -> mark# X1) (mark# afterNth(X1, X2) -> mark# X2, mark# pair(X1, X2) -> mark# X2) (mark# afterNth(X1, X2) -> mark# X2, mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# nil() -> active# nil()) (mark# afterNth(X1, X2) -> mark# X2, mark# U71(X1, X2) -> mark# X1) (mark# afterNth(X1, X2) -> mark# X2, mark# U71(X1, X2) -> active# U71(mark X1, X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# U71(X1, X2) -> U71#(mark X1, X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# U82(X1, X2) -> mark# X1) (mark# afterNth(X1, X2) -> mark# X2, mark# U82(X1, X2) -> active# U82(mark X1, X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# U82(X1, X2) -> U82#(mark X1, X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# U81(X1, X2, X3, X4) -> mark# X1) (mark# afterNth(X1, X2) -> mark# X2, mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (mark# afterNth(X1, X2) -> mark# X2, mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (mark# afterNth(X1, X2) -> mark# X2, mark# U91(X1, X2) -> mark# X1) (mark# afterNth(X1, X2) -> mark# X2, mark# U91(X1, X2) -> active# U91(mark X1, X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# U91(X1, X2) -> U91#(mark X1, X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# and(X1, X2) -> mark# X1) (mark# afterNth(X1, X2) -> mark# X2, mark# and(X1, X2) -> active# and(mark X1, X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# and(X1, X2) -> and#(mark X1, X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# isNatural X -> active# isNatural X) (mark# afterNth(X1, X2) -> mark# X2, mark# isLNat X -> active# isLNat X) (mark# afterNth(X1, X2) -> mark# X2, mark# isPLNat X -> active# isPLNat X) (mark# afterNth(X1, X2) -> mark# X2, mark# tail X -> mark# X) (mark# afterNth(X1, X2) -> mark# X2, mark# tail X -> active# tail mark X) (mark# afterNth(X1, X2) -> mark# X2, mark# tail X -> tail# mark X) (mark# afterNth(X1, X2) -> mark# X2, mark# take(X1, X2) -> mark# X1) (mark# afterNth(X1, X2) -> mark# X2, mark# take(X1, X2) -> mark# X2) (mark# afterNth(X1, X2) -> mark# X2, mark# take(X1, X2) -> active# take(mark X1, mark X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# take(X1, X2) -> take#(mark X1, mark X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# 0() -> active# 0()) (mark# afterNth(X1, X2) -> mark# X2, mark# sel(X1, X2) -> mark# X1) (mark# afterNth(X1, X2) -> mark# X2, mark# sel(X1, X2) -> mark# X2) (mark# afterNth(X1, X2) -> mark# X2, mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (mark# afterNth(X1, X2) -> mark# X2, mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# fst X -> mark# X) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# fst X -> fst# mark X) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# fst X -> active# fst mark X) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# splitAt(X1, X2) -> mark# X1) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# splitAt(X1, X2) -> mark# X2) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U101(X1, X2, X3) -> mark# X1) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# tt() -> active# tt()) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# snd X -> mark# X) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# snd X -> active# snd mark X) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# snd X -> snd# mark X) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U11(X1, X2, X3) -> mark# X1) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U21(X1, X2) -> mark# X1) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U21(X1, X2) -> active# U21(mark X1, X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U21(X1, X2) -> U21#(mark X1, X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U31(X1, X2) -> mark# X1) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U31(X1, X2) -> active# U31(mark X1, X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U31(X1, X2) -> U31#(mark X1, X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# cons(X1, X2) -> mark# X1) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# cons(X1, X2) -> active# cons(mark X1, X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# cons(X1, X2) -> cons#(mark X1, X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# natsFrom X -> mark# X) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# natsFrom X -> active# natsFrom mark X) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# natsFrom X -> natsFrom# mark X) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# s X -> mark# X) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# s X -> active# s mark X) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# s X -> s# mark X) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U41(X1, X2) -> mark# X1) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U41(X1, X2) -> active# U41(mark X1, X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U41(X1, X2) -> U41#(mark X1, X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# head X -> mark# X) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# head X -> active# head mark X) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# head X -> head# mark X) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# afterNth(X1, X2) -> mark# X1) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# afterNth(X1, X2) -> mark# X2) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U51(X1, X2, X3) -> mark# X1) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U61(X1, X2) -> mark# X1) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U61(X1, X2) -> active# U61(mark X1, X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U61(X1, X2) -> U61#(mark X1, X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# pair(X1, X2) -> mark# X1) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# pair(X1, X2) -> mark# X2) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# nil() -> active# nil()) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U71(X1, X2) -> mark# X1) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U71(X1, X2) -> active# U71(mark X1, X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U71(X1, X2) -> U71#(mark X1, X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U82(X1, X2) -> mark# X1) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U82(X1, X2) -> active# U82(mark X1, X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U82(X1, X2) -> U82#(mark X1, X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U81(X1, X2, X3, X4) -> mark# X1) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U91(X1, X2) -> mark# X1) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U91(X1, X2) -> active# U91(mark X1, X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# U91(X1, X2) -> U91#(mark X1, X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# and(X1, X2) -> mark# X1) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# and(X1, X2) -> active# and(mark X1, X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# and(X1, X2) -> and#(mark X1, X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# isNatural X -> active# isNatural X) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# isLNat X -> active# isLNat X) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# isPLNat X -> active# isPLNat X) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# tail X -> mark# X) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# tail X -> active# tail mark X) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# tail X -> tail# mark X) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# take(X1, X2) -> mark# X1) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# take(X1, X2) -> mark# X2) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# take(X1, X2) -> active# take(mark X1, mark X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# take(X1, X2) -> take#(mark X1, mark X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# 0() -> active# 0()) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# sel(X1, X2) -> mark# X1) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# sel(X1, X2) -> mark# X2) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# fst X -> mark# X) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# fst X -> fst# mark X) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# fst X -> active# fst mark X) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# splitAt(X1, X2) -> mark# X1) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# splitAt(X1, X2) -> mark# X2) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U101(X1, X2, X3) -> mark# X1) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# tt() -> active# tt()) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# snd X -> mark# X) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# snd X -> active# snd mark X) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# snd X -> snd# mark X) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U11(X1, X2, X3) -> mark# X1) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U21(X1, X2) -> mark# X1) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U21(X1, X2) -> active# U21(mark X1, X2)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U21(X1, X2) -> U21#(mark X1, X2)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U31(X1, X2) -> mark# X1) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U31(X1, X2) -> active# U31(mark X1, X2)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U31(X1, X2) -> U31#(mark X1, X2)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# cons(X1, X2) -> mark# X1) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# cons(X1, X2) -> active# cons(mark X1, X2)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# cons(X1, X2) -> cons#(mark X1, X2)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# natsFrom X -> mark# X) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# natsFrom X -> active# natsFrom mark X) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# natsFrom X -> natsFrom# mark X) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# s X -> mark# X) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# s X -> active# s mark X) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# s X -> s# mark X) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U41(X1, X2) -> mark# X1) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U41(X1, X2) -> active# U41(mark X1, X2)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U41(X1, X2) -> U41#(mark X1, X2)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# head X -> mark# X) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# head X -> active# head mark X) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# head X -> head# mark X) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# afterNth(X1, X2) -> mark# X1) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# afterNth(X1, X2) -> mark# X2) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U51(X1, X2, X3) -> mark# X1) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U61(X1, X2) -> mark# X1) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U61(X1, X2) -> active# U61(mark X1, X2)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U61(X1, X2) -> U61#(mark X1, X2)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# pair(X1, X2) -> mark# X1) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# pair(X1, X2) -> mark# X2) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# nil() -> active# nil()) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U71(X1, X2) -> mark# X1) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U71(X1, X2) -> active# U71(mark X1, X2)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U71(X1, X2) -> U71#(mark X1, X2)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U82(X1, X2) -> mark# X1) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U82(X1, X2) -> active# U82(mark X1, X2)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U82(X1, X2) -> U82#(mark X1, X2)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U81(X1, X2, X3, X4) -> mark# X1) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U91(X1, X2) -> mark# X1) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U91(X1, X2) -> active# U91(mark X1, X2)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# U91(X1, X2) -> U91#(mark X1, X2)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# and(X1, X2) -> mark# X1) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# and(X1, X2) -> active# and(mark X1, X2)) (active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), mark# 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X -> mark# X) (mark# U101(X1, X2, X3) -> mark# X1, mark# natsFrom X -> active# natsFrom mark X) (mark# U101(X1, X2, X3) -> mark# X1, mark# natsFrom X -> natsFrom# mark X) (mark# U101(X1, X2, X3) -> mark# X1, mark# s X -> mark# X) (mark# U101(X1, X2, X3) -> mark# X1, mark# s X -> active# s mark X) (mark# U101(X1, X2, X3) -> mark# X1, mark# s X -> s# mark X) (mark# U101(X1, X2, X3) -> mark# X1, mark# U41(X1, X2) -> mark# X1) (mark# U101(X1, X2, X3) -> mark# X1, mark# U41(X1, X2) -> active# U41(mark X1, X2)) (mark# U101(X1, X2, X3) -> mark# X1, mark# U41(X1, X2) -> U41#(mark X1, X2)) (mark# U101(X1, X2, X3) -> mark# X1, mark# head X -> mark# X) (mark# U101(X1, X2, X3) -> mark# X1, mark# head X -> active# head mark X) (mark# U101(X1, X2, X3) -> mark# X1, mark# head X -> head# mark X) (mark# U101(X1, X2, X3) -> mark# X1, mark# afterNth(X1, X2) -> mark# X1) (mark# U101(X1, X2, X3) -> mark# X1, mark# afterNth(X1, X2) -> mark# X2) (mark# U101(X1, X2, X3) -> mark# X1, mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (mark# U101(X1, X2, X3) -> mark# X1, mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (mark# U101(X1, X2, X3) -> mark# X1, mark# U51(X1, X2, X3) -> mark# X1) (mark# U101(X1, X2, X3) -> mark# X1, mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (mark# U101(X1, X2, X3) -> mark# X1, mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (mark# U101(X1, X2, X3) -> mark# X1, mark# U61(X1, X2) -> mark# X1) (mark# U101(X1, X2, X3) -> mark# X1, mark# U61(X1, X2) -> active# U61(mark X1, X2)) (mark# U101(X1, X2, X3) -> mark# X1, mark# U61(X1, X2) -> U61#(mark X1, X2)) (mark# U101(X1, X2, X3) -> mark# X1, mark# pair(X1, X2) -> mark# X1) (mark# U101(X1, X2, X3) -> mark# X1, mark# pair(X1, X2) -> mark# X2) (mark# U101(X1, X2, X3) -> mark# X1, mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (mark# U101(X1, X2, X3) -> mark# X1, mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (mark# U101(X1, X2, X3) -> mark# X1, mark# nil() -> active# nil()) (mark# U101(X1, X2, X3) -> mark# X1, mark# U71(X1, X2) -> mark# X1) (mark# U101(X1, X2, X3) -> mark# X1, mark# U71(X1, X2) -> active# U71(mark X1, X2)) (mark# U101(X1, X2, X3) -> mark# X1, mark# U71(X1, X2) -> U71#(mark X1, X2)) (mark# U101(X1, X2, X3) -> mark# X1, mark# U82(X1, X2) -> mark# X1) (mark# U101(X1, X2, X3) -> mark# X1, mark# U82(X1, X2) -> active# U82(mark X1, X2)) (mark# U101(X1, X2, X3) -> mark# X1, mark# U82(X1, X2) -> U82#(mark X1, X2)) (mark# U101(X1, X2, X3) -> mark# X1, mark# U81(X1, X2, X3, X4) -> mark# X1) (mark# U101(X1, X2, X3) -> mark# X1, mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (mark# U101(X1, X2, X3) -> mark# X1, mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (mark# U101(X1, X2, X3) -> mark# X1, mark# U91(X1, X2) -> mark# X1) (mark# U101(X1, X2, X3) -> mark# X1, mark# U91(X1, X2) -> active# U91(mark X1, X2)) (mark# U101(X1, X2, X3) -> mark# X1, mark# U91(X1, X2) -> U91#(mark X1, X2)) (mark# U101(X1, X2, X3) -> mark# X1, mark# and(X1, X2) -> mark# X1) (mark# U101(X1, X2, X3) -> mark# X1, mark# and(X1, X2) -> active# and(mark X1, X2)) (mark# U101(X1, X2, X3) -> mark# X1, mark# and(X1, X2) -> and#(mark X1, X2)) (mark# U101(X1, X2, X3) -> mark# X1, mark# isNatural X -> active# isNatural X) (mark# U101(X1, X2, X3) -> mark# X1, mark# isLNat X -> active# isLNat X) (mark# U101(X1, X2, X3) -> mark# X1, mark# isPLNat X -> active# isPLNat X) (mark# U101(X1, X2, X3) -> mark# X1, mark# tail X -> mark# X) (mark# U101(X1, X2, X3) -> mark# X1, mark# tail X -> active# tail mark X) (mark# U101(X1, X2, X3) -> mark# X1, mark# tail X -> tail# mark X) (mark# U101(X1, X2, X3) -> mark# X1, mark# take(X1, X2) -> mark# X1) (mark# U101(X1, X2, X3) -> mark# X1, mark# take(X1, X2) -> mark# X2) (mark# U101(X1, X2, X3) -> mark# X1, mark# take(X1, X2) -> active# take(mark X1, mark X2)) (mark# U101(X1, X2, X3) -> mark# X1, mark# take(X1, X2) -> take#(mark X1, mark X2)) (mark# U101(X1, X2, X3) -> mark# X1, mark# 0() -> active# 0()) (mark# U101(X1, X2, X3) -> mark# X1, mark# sel(X1, X2) -> mark# X1) (mark# U101(X1, X2, X3) -> mark# X1, mark# sel(X1, X2) -> mark# X2) (mark# U101(X1, X2, X3) -> mark# X1, mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (mark# U101(X1, X2, X3) -> mark# X1, mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# fst X -> mark# X) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# fst X -> fst# mark X) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# fst X -> active# fst mark X) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# splitAt(X1, X2) -> mark# X1) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# splitAt(X1, X2) -> mark# X2) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U101(X1, X2, X3) -> mark# X1) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# tt() -> active# tt()) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# snd X -> mark# X) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# snd X -> active# snd mark X) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# snd X -> snd# mark X) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U11(X1, X2, X3) -> mark# X1) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U21(X1, X2) -> mark# X1) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U21(X1, X2) -> active# U21(mark X1, X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U21(X1, X2) -> U21#(mark X1, X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U31(X1, X2) -> mark# X1) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U31(X1, X2) -> active# U31(mark X1, X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U31(X1, X2) -> U31#(mark X1, X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# cons(X1, X2) -> mark# X1) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# cons(X1, X2) -> active# cons(mark X1, X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# cons(X1, X2) -> cons#(mark X1, X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# natsFrom X -> mark# X) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# natsFrom X -> active# natsFrom mark X) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# natsFrom X -> natsFrom# mark X) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# s X -> mark# X) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# s X -> active# s mark X) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# s X -> s# mark X) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U41(X1, X2) -> mark# X1) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U41(X1, X2) -> active# U41(mark X1, X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U41(X1, X2) -> U41#(mark X1, X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# head X -> mark# X) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# head X -> active# head mark X) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# head X -> head# mark X) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# afterNth(X1, X2) -> mark# X1) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# afterNth(X1, X2) -> mark# X2) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U51(X1, X2, X3) -> mark# X1) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U61(X1, X2) -> mark# X1) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U61(X1, X2) -> active# U61(mark X1, X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U61(X1, X2) -> U61#(mark X1, X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# pair(X1, X2) -> mark# X1) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# pair(X1, X2) -> mark# X2) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# nil() -> active# nil()) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U71(X1, X2) -> mark# X1) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U71(X1, X2) -> active# U71(mark X1, X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U71(X1, X2) -> U71#(mark X1, X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U82(X1, X2) -> mark# X1) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U82(X1, X2) -> active# U82(mark X1, X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U82(X1, X2) -> U82#(mark X1, X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U81(X1, X2, X3, X4) -> mark# X1) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U91(X1, X2) -> mark# X1) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U91(X1, X2) -> active# U91(mark X1, X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# U91(X1, X2) -> U91#(mark X1, X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# and(X1, X2) -> mark# X1) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# and(X1, X2) -> active# and(mark X1, X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# and(X1, X2) -> and#(mark X1, X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# isNatural X -> active# isNatural X) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# isLNat X -> active# isLNat X) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# isPLNat X -> active# isPLNat X) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# tail X -> mark# X) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# tail X -> active# tail mark X) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# tail X -> tail# mark X) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# take(X1, X2) -> mark# X1) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# take(X1, X2) -> mark# X2) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# take(X1, X2) -> active# take(mark X1, mark X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# take(X1, X2) -> take#(mark X1, mark X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# 0() -> active# 0()) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# sel(X1, X2) -> mark# X1) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# sel(X1, X2) -> mark# X2) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# fst X -> mark# X) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# fst X -> fst# mark X) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# fst X -> active# fst mark X) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# splitAt(X1, X2) -> mark# X1) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# splitAt(X1, X2) -> mark# X2) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# U101(X1, X2, X3) -> mark# X1) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# tt() -> active# tt()) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# snd X -> mark# X) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# snd X -> active# snd mark X) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# snd X -> snd# mark X) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# U11(X1, X2, X3) -> mark# X1) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# U21(X1, X2) -> mark# X1) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# U21(X1, X2) -> active# U21(mark X1, X2)) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# U21(X1, X2) -> U21#(mark X1, X2)) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# U31(X1, X2) -> mark# X1) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# U31(X1, X2) -> active# U31(mark X1, X2)) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# U31(X1, X2) -> U31#(mark X1, X2)) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# cons(X1, X2) -> mark# X1) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# cons(X1, X2) -> active# cons(mark X1, X2)) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# cons(X1, X2) -> cons#(mark X1, X2)) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# natsFrom X -> mark# X) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# natsFrom X -> active# natsFrom mark X) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# natsFrom X -> natsFrom# mark X) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# s X -> mark# X) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# s X -> active# s mark X) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# s X -> s# mark X) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# U41(X1, X2) -> mark# X1) (active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), mark# 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X3) -> active# U101(mark X1, X2, X3)) (active# natsFrom N -> mark# U41(isNatural N, N), mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (active# natsFrom N -> mark# U41(isNatural N, N), mark# tt() -> active# tt()) (active# natsFrom N -> mark# U41(isNatural N, N), mark# snd X -> mark# X) (active# natsFrom N -> mark# U41(isNatural N, N), mark# snd X -> active# snd mark X) (active# natsFrom N -> mark# U41(isNatural N, N), mark# snd X -> snd# mark X) (active# natsFrom N -> mark# U41(isNatural N, N), mark# U11(X1, X2, X3) -> mark# X1) (active# natsFrom N -> mark# U41(isNatural N, N), mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (active# natsFrom N -> mark# U41(isNatural N, N), mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (active# natsFrom N -> mark# U41(isNatural N, N), mark# U21(X1, X2) -> mark# X1) (active# natsFrom N -> mark# U41(isNatural N, N), mark# U21(X1, X2) -> active# U21(mark X1, X2)) (active# natsFrom N -> mark# U41(isNatural N, N), mark# U21(X1, X2) -> U21#(mark 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splitAt(X1, X2) -> mark# X1) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# splitAt(X1, X2) -> mark# X2) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U101(X1, X2, X3) -> mark# X1) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# tt() -> active# tt()) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# snd X -> mark# X) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# snd X -> active# snd mark X) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# snd X -> snd# mark X) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U11(X1, X2, X3) -> mark# X1) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U21(X1, X2) -> mark# X1) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U21(X1, X2) -> active# U21(mark X1, X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U21(X1, X2) -> U21#(mark X1, X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U31(X1, X2) -> mark# X1) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U31(X1, X2) -> active# U31(mark X1, X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U31(X1, X2) -> U31#(mark X1, X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# cons(X1, X2) -> mark# X1) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# cons(X1, X2) -> active# cons(mark X1, X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# cons(X1, X2) -> cons#(mark X1, X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# natsFrom X -> mark# X) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# natsFrom X -> active# natsFrom mark X) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# natsFrom X -> natsFrom# mark X) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# s X -> mark# X) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# s X -> active# s mark X) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# s X -> s# mark X) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U41(X1, X2) -> mark# X1) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U41(X1, X2) -> active# U41(mark X1, X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U41(X1, X2) -> U41#(mark X1, X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# head X -> mark# X) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# head X -> active# head mark X) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# head X -> head# mark X) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# afterNth(X1, X2) -> mark# X1) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# afterNth(X1, X2) -> mark# X2) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U51(X1, X2, X3) -> mark# X1) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U61(X1, X2) -> mark# X1) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U61(X1, X2) -> active# U61(mark X1, X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U61(X1, X2) -> U61#(mark X1, X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# pair(X1, X2) -> mark# X1) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# pair(X1, X2) -> mark# X2) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# nil() -> active# nil()) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U71(X1, X2) -> mark# X1) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U71(X1, X2) -> active# U71(mark X1, X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U71(X1, X2) -> U71#(mark X1, X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U82(X1, X2) -> mark# X1) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U82(X1, X2) -> active# U82(mark X1, X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U82(X1, X2) -> U82#(mark X1, X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U81(X1, X2, X3, X4) -> mark# X1) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U91(X1, X2) -> mark# X1) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U91(X1, X2) -> active# U91(mark X1, X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# U91(X1, X2) -> U91#(mark X1, X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# and(X1, X2) -> mark# X1) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# and(X1, X2) -> active# and(mark X1, X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# and(X1, X2) -> and#(mark X1, X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# isNatural X -> active# isNatural X) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# isLNat X -> active# isLNat X) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# isPLNat X -> active# isPLNat X) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# tail X -> mark# X) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# tail X -> active# tail mark X) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# tail X -> tail# mark X) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# take(X1, X2) -> mark# X1) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# take(X1, X2) -> mark# X2) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# take(X1, X2) -> active# take(mark X1, mark X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# take(X1, X2) -> take#(mark X1, mark X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# 0() -> active# 0()) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# sel(X1, X2) -> mark# X1) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# sel(X1, X2) -> mark# X2) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# fst X -> mark# X) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# fst X -> fst# mark X) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# fst X -> active# fst mark X) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# splitAt(X1, X2) -> mark# X1) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# splitAt(X1, X2) -> mark# X2) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U101(X1, X2, X3) -> mark# X1) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# tt() -> active# tt()) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# snd X -> mark# X) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# snd X -> active# snd mark X) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# snd X -> snd# mark X) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U11(X1, X2, X3) -> mark# X1) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U21(X1, X2) -> mark# X1) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U21(X1, X2) -> active# U21(mark X1, X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U21(X1, X2) -> U21#(mark X1, X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U31(X1, X2) -> mark# X1) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U31(X1, X2) -> active# U31(mark X1, X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U31(X1, X2) -> U31#(mark X1, X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# cons(X1, X2) -> mark# X1) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# cons(X1, X2) -> active# cons(mark X1, X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# cons(X1, X2) -> cons#(mark X1, X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# natsFrom X -> mark# X) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# natsFrom X -> active# natsFrom mark X) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# natsFrom X -> natsFrom# mark X) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# s X -> mark# X) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# s X -> active# s mark X) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# s X -> s# mark X) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U41(X1, X2) -> mark# X1) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U41(X1, X2) -> active# U41(mark X1, X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U41(X1, X2) -> U41#(mark X1, X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# head X -> mark# X) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# head X -> active# head mark X) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# head X -> head# mark X) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# afterNth(X1, X2) -> mark# X1) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# afterNth(X1, X2) -> mark# X2) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U51(X1, X2, X3) -> mark# X1) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U61(X1, X2) -> mark# X1) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U61(X1, X2) -> active# U61(mark X1, X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U61(X1, X2) -> U61#(mark X1, X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# pair(X1, X2) -> mark# X1) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# pair(X1, X2) -> mark# X2) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# nil() -> active# nil()) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U71(X1, X2) -> mark# X1) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U71(X1, X2) -> active# U71(mark X1, X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U71(X1, X2) -> U71#(mark X1, X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U82(X1, X2) -> mark# X1) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U82(X1, X2) -> active# U82(mark X1, X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U82(X1, X2) -> U82#(mark X1, X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U81(X1, X2, X3, X4) -> mark# X1) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U91(X1, X2) -> mark# X1) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U91(X1, X2) -> active# U91(mark X1, X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# U91(X1, X2) -> U91#(mark X1, X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# and(X1, X2) -> mark# X1) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# and(X1, X2) -> active# and(mark X1, X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# and(X1, X2) -> and#(mark X1, X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# isNatural X -> active# isNatural X) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# isLNat X -> active# isLNat X) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# isPLNat X -> active# isPLNat X) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# tail X -> mark# X) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# tail X -> active# tail mark X) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# tail X -> tail# mark X) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# take(X1, X2) -> mark# X1) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# take(X1, X2) -> mark# X2) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# take(X1, X2) -> active# take(mark X1, mark X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# take(X1, X2) -> take#(mark X1, mark X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# 0() -> active# 0()) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# sel(X1, X2) -> mark# X1) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# sel(X1, X2) -> mark# X2) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# fst pair(X, Y) -> U21#(and(isLNat X, isLNat Y), X)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# fst pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# fst pair(X, Y) -> isLNat# X) (mark# and(X1, X2) -> active# and(mark X1, X2), active# fst pair(X, Y) -> isLNat# Y) (mark# and(X1, X2) -> active# and(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> U81#(and(isNatural N, 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active# and(mark X1, X2), active# U101(tt(), N, XS) -> fst# splitAt(N, XS)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# U101(tt(), N, XS) -> splitAt#(N, XS)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# snd pair(X, Y) -> U61#(and(isLNat X, isLNat Y), Y)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# snd pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# snd pair(X, Y) -> isLNat# X) (mark# and(X1, X2) -> active# and(mark X1, X2), active# snd pair(X, Y) -> isLNat# Y) (mark# and(X1, X2) -> active# and(mark X1, X2), active# U11(tt(), N, XS) -> mark# snd splitAt(N, XS)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# U11(tt(), N, XS) -> splitAt#(N, XS)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# U11(tt(), N, XS) -> snd# splitAt(N, XS)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# U21(tt(), X) -> mark# X) (mark# and(X1, X2) -> active# and(mark X1, X2), active# U31(tt(), N) -> mark# N) (mark# and(X1, X2) -> active# and(mark X1, X2), active# natsFrom N -> mark# U41(isNatural N, N)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# natsFrom N -> U41#(isNatural N, N)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# natsFrom N -> isNatural# N) (mark# and(X1, X2) -> active# and(mark X1, X2), active# U41(tt(), N) -> mark# cons(N, natsFrom s N)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# U41(tt(), N) -> cons#(N, natsFrom s N)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# U41(tt(), N) -> natsFrom# s N) (mark# and(X1, X2) -> active# and(mark X1, X2), active# U41(tt(), N) -> s# N) (mark# and(X1, X2) -> active# and(mark X1, X2), active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# head cons(N, XS) -> U31#(and(isNatural N, isLNat XS), N)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# head cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# head cons(N, XS) -> isNatural# N) (mark# and(X1, X2) -> active# and(mark X1, X2), active# head cons(N, XS) -> isLNat# XS) (mark# and(X1, X2) -> active# and(mark X1, X2), active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# afterNth(N, XS) -> U11#(and(isNatural N, isLNat XS), N, XS)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# afterNth(N, XS) -> and#(isNatural N, isLNat XS)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# afterNth(N, XS) -> isNatural# N) (mark# and(X1, X2) -> active# and(mark X1, X2), active# afterNth(N, XS) -> isLNat# XS) (mark# and(X1, X2) -> active# and(mark X1, X2), active# U51(tt(), N, XS) -> mark# head afterNth(N, XS)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# U51(tt(), N, XS) -> head# afterNth(N, XS)) (mark# 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and(mark X1, X2), active# U91(tt(), XS) -> mark# XS) (mark# and(X1, X2) -> active# and(mark X1, X2), active# and(tt(), X) -> mark# X) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isNatural s V1 -> mark# isNatural V1) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isNatural s V1 -> isNatural# V1) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isNatural head V1 -> mark# isLNat V1) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isNatural head V1 -> isLNat# V1) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isNatural 0() -> mark# tt()) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isNatural sel(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isNatural sel(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isNatural sel(V1, V2) -> isNatural# V1) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isNatural sel(V1, V2) -> isLNat# V2) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isLNat fst V1 -> mark# isPLNat V1) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isLNat fst V1 -> isPLNat# V1) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isLNat snd V1 -> mark# isPLNat V1) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isLNat snd V1 -> isPLNat# V1) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isLNat cons(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isLNat cons(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isLNat cons(V1, V2) -> isNatural# V1) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isLNat cons(V1, V2) -> isLNat# V2) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isLNat natsFrom V1 -> mark# isNatural V1) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isLNat natsFrom V1 -> isNatural# V1) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isLNat afterNth(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isLNat afterNth(V1, V2) -> isNatural# V1) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isLNat afterNth(V1, V2) -> isLNat# V2) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isLNat nil() -> mark# tt()) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isLNat tail V1 -> mark# isLNat V1) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isLNat tail V1 -> isLNat# V1) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isLNat take(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isLNat take(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isLNat take(V1, V2) -> isNatural# V1) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isLNat take(V1, V2) -> isLNat# V2) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isPLNat splitAt(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isPLNat splitAt(V1, V2) -> isNatural# V1) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isPLNat splitAt(V1, V2) -> isLNat# V2) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isPLNat pair(V1, V2) -> and#(isLNat V1, isLNat V2)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isPLNat pair(V1, V2) -> isLNat# V1) (mark# and(X1, X2) -> active# and(mark X1, X2), active# isPLNat pair(V1, V2) -> isLNat# V2) (mark# and(X1, X2) -> active# and(mark X1, X2), active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# tail cons(N, XS) -> U91#(and(isNatural N, isLNat XS), XS)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# tail cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# tail cons(N, XS) -> isNatural# N) (mark# and(X1, X2) -> active# and(mark X1, X2), active# tail cons(N, XS) -> isLNat# XS) (mark# and(X1, X2) -> active# and(mark X1, X2), active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# take(N, XS) -> U101#(and(isNatural N, isLNat XS), N, XS)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# take(N, XS) -> and#(isNatural N, isLNat XS)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# take(N, XS) -> isNatural# N) (mark# and(X1, X2) -> active# and(mark X1, X2), active# take(N, XS) -> isLNat# XS) (mark# and(X1, X2) -> active# and(mark X1, X2), active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# sel(N, XS) -> U51#(and(isNatural N, isLNat XS), N, XS)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# sel(N, XS) -> and#(isNatural N, isLNat XS)) (mark# and(X1, X2) -> active# and(mark X1, X2), active# sel(N, XS) -> isNatural# N) (mark# and(X1, X2) -> active# and(mark X1, X2), active# sel(N, XS) -> isLNat# XS) (mark# U82(X1, X2) -> active# U82(mark X1, X2), active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X)) (mark# U82(X1, X2) -> active# U82(mark X1, X2), active# fst pair(X, Y) -> U21#(and(isLNat X, isLNat Y), X)) (mark# U82(X1, X2) -> active# U82(mark X1, X2), active# fst pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# U82(X1, X2) -> active# U82(mark X1, X2), active# fst pair(X, Y) -> isLNat# X) (mark# U82(X1, X2) -> active# U82(mark X1, X2), active# fst pair(X, Y) -> isLNat# Y) (mark# U82(X1, X2) -> active# U82(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# U82(X1, X2) -> active# U82(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> U81#(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# U82(X1, X2) -> active# U82(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> and#(isNatural N, and(isNatural X, isLNat XS))) (mark# U82(X1, X2) -> active# U82(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> and#(isNatural X, isLNat XS)) (mark# U82(X1, X2) -> active# U82(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> isNatural# N) (mark# U82(X1, X2) -> active# U82(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> isNatural# X) (mark# U82(X1, X2) -> active# U82(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> isLNat# XS) (mark# U82(X1, X2) -> active# U82(mark X1, X2), active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS)) (mark# U82(X1, X2) -> active# U82(mark X1, X2), active# splitAt(0(), XS) -> U71#(isLNat XS, XS)) (mark# U82(X1, X2) -> active# U82(mark X1, X2), active# splitAt(0(), XS) -> isLNat# XS) (mark# U82(X1, X2) -> active# U82(mark X1, X2), active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS)) (mark# U82(X1, X2) -> active# U82(mark X1, X2), active# U101(tt(), N, XS) -> fst# splitAt(N, XS)) (mark# U82(X1, X2) -> active# U82(mark X1, X2), active# U101(tt(), N, XS) -> splitAt#(N, XS)) (mark# U82(X1, X2) -> active# U82(mark X1, X2), active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y)) (mark# U82(X1, X2) -> active# U82(mark X1, X2), active# snd pair(X, Y) -> U61#(and(isLNat X, isLNat Y), Y)) (mark# U82(X1, X2) -> active# U82(mark X1, X2), active# snd pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# U82(X1, X2) -> active# U82(mark X1, X2), active# snd pair(X, Y) -> isLNat# X) (mark# U82(X1, X2) -> active# U82(mark X1, X2), active# snd pair(X, Y) -> isLNat# Y) (mark# U82(X1, X2) -> active# U82(mark X1, X2), active# U11(tt(), N, XS) -> mark# snd splitAt(N, XS)) (mark# U82(X1, X2) -> active# U82(mark X1, X2), active# U11(tt(), N, XS) 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(mark# U61(X1, X2) -> active# U61(mark X1, X2), active# isLNat take(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U61(X1, X2) -> active# U61(mark X1, X2), active# isLNat take(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U61(X1, X2) -> active# U61(mark X1, X2), active# isLNat take(V1, V2) -> isNatural# V1) (mark# U61(X1, X2) -> active# U61(mark X1, X2), active# isLNat take(V1, V2) -> isLNat# V2) (mark# U61(X1, X2) -> active# U61(mark X1, X2), active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U61(X1, X2) -> active# U61(mark X1, X2), active# isPLNat splitAt(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U61(X1, X2) -> active# U61(mark X1, X2), active# isPLNat splitAt(V1, V2) -> isNatural# V1) (mark# U61(X1, X2) -> active# U61(mark X1, X2), active# isPLNat splitAt(V1, V2) -> isLNat# V2) (mark# U61(X1, X2) -> active# U61(mark X1, X2), active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2)) (mark# U61(X1, X2) -> active# U61(mark X1, X2), active# isPLNat pair(V1, V2) -> and#(isLNat V1, isLNat V2)) (mark# U61(X1, X2) -> active# U61(mark X1, X2), active# isPLNat pair(V1, V2) -> isLNat# V1) (mark# U61(X1, X2) -> active# U61(mark X1, X2), active# isPLNat pair(V1, V2) -> isLNat# V2) (mark# U61(X1, X2) -> active# U61(mark X1, X2), active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS)) (mark# U61(X1, X2) -> active# U61(mark X1, X2), active# tail cons(N, XS) -> U91#(and(isNatural N, isLNat XS), XS)) (mark# U61(X1, X2) -> active# U61(mark X1, X2), active# tail cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U61(X1, X2) -> active# U61(mark X1, X2), active# tail cons(N, XS) -> isNatural# N) (mark# U61(X1, X2) -> active# U61(mark X1, X2), active# tail cons(N, XS) -> isLNat# XS) (mark# U61(X1, X2) -> active# U61(mark X1, X2), active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS)) (mark# U61(X1, X2) -> active# U61(mark X1, X2), active# take(N, XS) -> U101#(and(isNatural N, isLNat XS), N, XS)) (mark# U61(X1, X2) -> active# U61(mark X1, X2), active# take(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U61(X1, X2) -> active# U61(mark X1, X2), active# take(N, XS) -> isNatural# N) (mark# U61(X1, X2) -> active# U61(mark X1, X2), active# take(N, XS) -> isLNat# XS) (mark# U61(X1, X2) -> active# U61(mark X1, X2), active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS)) (mark# U61(X1, X2) -> active# U61(mark X1, X2), active# sel(N, XS) -> U51#(and(isNatural N, isLNat XS), N, XS)) (mark# U61(X1, X2) -> active# U61(mark X1, X2), active# sel(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U61(X1, X2) -> active# U61(mark X1, X2), active# sel(N, XS) -> isNatural# N) (mark# U61(X1, X2) -> active# U61(mark X1, X2), active# sel(N, XS) -> isLNat# XS) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# fst pair(X, Y) -> U21#(and(isLNat X, isLNat Y), X)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# fst pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# fst pair(X, Y) -> isLNat# X) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# fst pair(X, Y) -> isLNat# Y) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> U81#(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> and#(isNatural N, and(isNatural X, isLNat XS))) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> and#(isNatural X, isLNat XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> isNatural# N) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> isNatural# X) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> isLNat# XS) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# splitAt(0(), XS) -> U71#(isLNat XS, XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# splitAt(0(), XS) -> isLNat# XS) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# U101(tt(), N, XS) -> fst# splitAt(N, XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# U101(tt(), N, XS) -> splitAt#(N, XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# snd pair(X, Y) -> U61#(and(isLNat X, isLNat Y), Y)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# snd pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# snd pair(X, Y) -> isLNat# X) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# snd pair(X, Y) -> isLNat# Y) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# U11(tt(), N, XS) -> mark# snd splitAt(N, XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# U11(tt(), N, XS) -> splitAt#(N, XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# U11(tt(), N, XS) -> snd# splitAt(N, XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# U21(tt(), X) -> mark# X) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# U31(tt(), N) -> mark# N) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# natsFrom N -> mark# U41(isNatural N, N)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# natsFrom N -> U41#(isNatural N, N)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# natsFrom N -> isNatural# N) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# U41(tt(), N) -> mark# cons(N, natsFrom s N)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# U41(tt(), N) -> cons#(N, natsFrom s N)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# U41(tt(), N) -> natsFrom# s N) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# U41(tt(), N) -> s# N) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# head cons(N, XS) -> U31#(and(isNatural N, isLNat XS), N)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# head cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# head cons(N, XS) -> isNatural# N) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# head cons(N, XS) -> isLNat# XS) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# afterNth(N, XS) -> U11#(and(isNatural N, isLNat XS), N, XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# afterNth(N, XS) -> and#(isNatural N, isLNat XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# afterNth(N, XS) -> isNatural# N) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# afterNth(N, XS) -> isLNat# XS) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# U51(tt(), N, XS) -> mark# head afterNth(N, XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# U51(tt(), N, XS) -> head# afterNth(N, XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# U51(tt(), N, XS) -> afterNth#(N, XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# U61(tt(), Y) -> mark# Y) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# U71(tt(), XS) -> mark# pair(nil(), XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# U71(tt(), XS) -> pair#(nil(), XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# U82(pair(YS, ZS), X) -> cons#(X, YS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# U82(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# U81(tt(), N, X, XS) -> splitAt#(N, XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# U81(tt(), N, X, XS) -> U82#(splitAt(N, XS), X)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# U91(tt(), XS) -> mark# XS) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# and(tt(), X) -> mark# X) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isNatural s V1 -> mark# isNatural V1) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isNatural s V1 -> isNatural# V1) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isNatural head V1 -> mark# isLNat V1) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isNatural head V1 -> isLNat# V1) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isNatural 0() -> mark# tt()) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isNatural sel(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isNatural sel(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isNatural sel(V1, V2) -> isNatural# V1) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isNatural sel(V1, V2) -> isLNat# V2) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isLNat fst V1 -> mark# isPLNat V1) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isLNat fst V1 -> isPLNat# V1) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isLNat snd V1 -> mark# isPLNat V1) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isLNat snd V1 -> isPLNat# V1) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isLNat cons(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isLNat cons(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isLNat cons(V1, V2) -> isNatural# V1) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isLNat cons(V1, V2) -> isLNat# V2) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isLNat natsFrom V1 -> mark# isNatural V1) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isLNat natsFrom V1 -> isNatural# V1) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isLNat afterNth(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isLNat afterNth(V1, V2) -> isNatural# V1) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isLNat afterNth(V1, V2) -> isLNat# V2) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isLNat nil() -> mark# tt()) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isLNat tail V1 -> mark# isLNat V1) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isLNat tail V1 -> isLNat# V1) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isLNat take(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isLNat take(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isLNat take(V1, V2) -> isNatural# V1) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isLNat take(V1, V2) -> isLNat# V2) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isPLNat splitAt(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isPLNat splitAt(V1, V2) -> isNatural# V1) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isPLNat splitAt(V1, V2) -> isLNat# V2) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isPLNat pair(V1, V2) -> and#(isLNat V1, isLNat V2)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isPLNat pair(V1, V2) -> isLNat# V1) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# isPLNat pair(V1, V2) -> isLNat# V2) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# tail cons(N, XS) -> U91#(and(isNatural N, isLNat XS), XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# tail cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# tail cons(N, XS) -> isNatural# N) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# tail cons(N, XS) -> isLNat# XS) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# take(N, XS) -> U101#(and(isNatural N, isLNat XS), N, XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# take(N, XS) -> and#(isNatural N, isLNat XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# take(N, XS) -> isNatural# N) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# take(N, XS) -> isLNat# XS) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# sel(N, XS) -> U51#(and(isNatural N, isLNat XS), N, XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# sel(N, XS) -> and#(isNatural N, isLNat XS)) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# sel(N, XS) -> isNatural# N) (mark# cons(X1, X2) -> active# cons(mark X1, X2), active# sel(N, XS) -> isLNat# XS) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# fst pair(X, Y) -> U21#(and(isLNat X, isLNat Y), X)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# fst pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# fst pair(X, Y) -> isLNat# X) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# fst pair(X, Y) -> isLNat# Y) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> U81#(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> and#(isNatural N, and(isNatural X, isLNat XS))) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> and#(isNatural X, isLNat XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> isNatural# N) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> isNatural# X) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# splitAt(s N, cons(X, XS)) -> isLNat# XS) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# splitAt(0(), XS) -> U71#(isLNat XS, XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# splitAt(0(), XS) -> isLNat# XS) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# U101(tt(), N, XS) -> fst# splitAt(N, XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# U101(tt(), N, XS) -> splitAt#(N, XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# snd pair(X, Y) -> U61#(and(isLNat X, isLNat Y), Y)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# snd pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# snd pair(X, Y) -> isLNat# X) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# snd pair(X, Y) -> isLNat# Y) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# U11(tt(), N, XS) -> mark# snd splitAt(N, XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# U11(tt(), N, XS) -> splitAt#(N, XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# U11(tt(), N, XS) -> snd# splitAt(N, XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# U21(tt(), X) -> mark# X) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# U31(tt(), N) -> mark# N) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# natsFrom N -> mark# U41(isNatural N, N)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# natsFrom N -> U41#(isNatural N, N)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# natsFrom N -> isNatural# N) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# U41(tt(), N) -> mark# cons(N, natsFrom s N)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# U41(tt(), N) -> cons#(N, natsFrom s N)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# U41(tt(), N) -> natsFrom# s N) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# U41(tt(), N) -> s# N) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# head cons(N, XS) -> U31#(and(isNatural N, isLNat XS), N)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# head cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# head cons(N, XS) -> isNatural# N) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# head cons(N, XS) -> isLNat# XS) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# afterNth(N, XS) -> U11#(and(isNatural N, isLNat XS), N, XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# afterNth(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# afterNth(N, XS) -> isNatural# N) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# afterNth(N, XS) -> isLNat# XS) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# U51(tt(), N, XS) -> mark# head afterNth(N, XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# U51(tt(), N, XS) -> head# afterNth(N, XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# U51(tt(), N, XS) -> afterNth#(N, XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# U61(tt(), Y) -> mark# Y) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# U71(tt(), XS) -> mark# pair(nil(), XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# U71(tt(), XS) -> pair#(nil(), XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# U82(pair(YS, ZS), X) -> cons#(X, YS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# U82(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# U81(tt(), N, X, XS) -> splitAt#(N, XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# U81(tt(), N, X, XS) -> U82#(splitAt(N, XS), X)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# U91(tt(), XS) -> mark# XS) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# and(tt(), X) -> mark# X) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isNatural s V1 -> mark# isNatural V1) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isNatural s V1 -> isNatural# V1) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isNatural head V1 -> mark# isLNat V1) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isNatural head V1 -> isLNat# V1) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isNatural 0() -> mark# tt()) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isNatural sel(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isNatural sel(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isNatural sel(V1, V2) -> isNatural# V1) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isNatural sel(V1, V2) -> isLNat# V2) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isLNat fst V1 -> mark# isPLNat V1) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isLNat fst V1 -> isPLNat# V1) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isLNat snd V1 -> mark# isPLNat V1) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isLNat snd V1 -> isPLNat# V1) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isLNat cons(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isLNat cons(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isLNat cons(V1, V2) -> isNatural# V1) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isLNat cons(V1, V2) -> isLNat# V2) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isLNat natsFrom V1 -> mark# isNatural V1) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isLNat natsFrom V1 -> isNatural# V1) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isLNat afterNth(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isLNat afterNth(V1, V2) -> isNatural# V1) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isLNat afterNth(V1, V2) -> isLNat# V2) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isLNat nil() -> mark# tt()) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isLNat tail V1 -> mark# isLNat V1) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isLNat tail V1 -> isLNat# V1) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isLNat take(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isLNat take(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isLNat take(V1, V2) -> isNatural# V1) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isLNat take(V1, V2) -> isLNat# V2) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isPLNat splitAt(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isPLNat splitAt(V1, V2) -> isNatural# V1) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isPLNat splitAt(V1, V2) -> isLNat# V2) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isPLNat pair(V1, V2) -> and#(isLNat V1, isLNat V2)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isPLNat pair(V1, V2) -> isLNat# V1) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# isPLNat pair(V1, V2) -> isLNat# V2) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# tail cons(N, XS) -> U91#(and(isNatural N, isLNat XS), XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# tail cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# tail cons(N, XS) -> isNatural# N) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# tail cons(N, XS) -> isLNat# XS) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# take(N, XS) -> U101#(and(isNatural N, isLNat XS), N, XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# take(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# take(N, XS) -> isNatural# N) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# take(N, XS) -> isLNat# XS) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# sel(N, XS) -> U51#(and(isNatural N, isLNat XS), N, XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# sel(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# sel(N, XS) -> isNatural# N) (mark# U21(X1, X2) -> active# U21(mark X1, X2), active# sel(N, XS) -> isLNat# XS) (active# take(N, XS) -> and#(isNatural N, isLNat XS), and#(X1, mark X2) -> and#(X1, X2)) (active# take(N, XS) -> and#(isNatural N, isLNat XS), and#(X1, active X2) -> and#(X1, X2)) (active# take(N, XS) -> and#(isNatural N, isLNat XS), and#(mark X1, X2) -> and#(X1, X2)) (active# take(N, XS) -> and#(isNatural N, isLNat XS), and#(active X1, X2) -> and#(X1, X2)) (active# isPLNat pair(V1, V2) -> and#(isLNat V1, isLNat V2), and#(X1, mark X2) -> and#(X1, X2)) (active# isPLNat pair(V1, V2) -> and#(isLNat V1, isLNat V2), and#(X1, active X2) -> and#(X1, X2)) (active# isPLNat pair(V1, V2) -> and#(isLNat V1, isLNat V2), and#(mark X1, X2) -> and#(X1, X2)) (active# isPLNat pair(V1, V2) -> and#(isLNat V1, isLNat V2), and#(active X1, X2) -> and#(X1, X2)) (active# isLNat take(V1, V2) -> and#(isNatural V1, isLNat V2), and#(X1, mark X2) -> and#(X1, X2)) (active# isLNat take(V1, V2) -> and#(isNatural V1, isLNat V2), and#(X1, active X2) -> and#(X1, X2)) (active# isLNat take(V1, V2) -> and#(isNatural V1, isLNat V2), and#(mark X1, X2) -> and#(X1, X2)) (active# isLNat take(V1, V2) -> and#(isNatural V1, isLNat V2), and#(active X1, X2) -> and#(X1, X2)) (active# isLNat cons(V1, V2) -> and#(isNatural V1, isLNat V2), and#(X1, mark X2) -> and#(X1, X2)) (active# isLNat cons(V1, V2) -> and#(isNatural V1, isLNat V2), and#(X1, active X2) -> and#(X1, X2)) (active# isLNat cons(V1, V2) -> and#(isNatural V1, isLNat V2), and#(mark X1, X2) -> and#(X1, X2)) (active# isLNat cons(V1, V2) -> and#(isNatural V1, isLNat V2), and#(active X1, X2) -> and#(X1, X2)) (active# afterNth(N, XS) -> and#(isNatural N, isLNat XS), and#(X1, mark X2) -> and#(X1, X2)) (active# afterNth(N, XS) -> and#(isNatural N, isLNat XS), and#(X1, active X2) -> and#(X1, X2)) (active# afterNth(N, XS) -> and#(isNatural N, isLNat XS), and#(mark X1, X2) -> and#(X1, X2)) (active# afterNth(N, XS) -> and#(isNatural N, isLNat XS), and#(active X1, X2) -> and#(X1, X2)) (active# snd pair(X, Y) -> and#(isLNat X, isLNat Y), and#(X1, mark X2) -> and#(X1, X2)) (active# snd pair(X, Y) -> and#(isLNat X, isLNat Y), and#(X1, active X2) -> and#(X1, X2)) (active# snd pair(X, Y) -> and#(isLNat X, isLNat Y), and#(mark X1, X2) -> and#(X1, X2)) (active# snd pair(X, Y) -> and#(isLNat X, isLNat Y), and#(active X1, X2) -> and#(X1, X2)) (active# fst pair(X, Y) -> and#(isLNat X, isLNat Y), and#(X1, mark X2) -> and#(X1, X2)) (active# fst pair(X, Y) -> and#(isLNat X, isLNat Y), and#(X1, active X2) -> and#(X1, X2)) (active# fst pair(X, Y) -> and#(isLNat X, isLNat Y), and#(mark X1, X2) -> and#(X1, X2)) (active# fst pair(X, Y) -> and#(isLNat X, isLNat Y), and#(active X1, X2) -> and#(X1, X2)) (mark# take(X1, X2) -> take#(mark X1, mark X2), take#(X1, mark X2) -> take#(X1, X2)) (mark# take(X1, X2) -> take#(mark X1, mark X2), take#(X1, active X2) -> take#(X1, X2)) (mark# take(X1, X2) -> take#(mark X1, mark X2), take#(mark X1, X2) -> take#(X1, X2)) (mark# take(X1, X2) -> take#(mark X1, mark X2), take#(active X1, X2) -> take#(X1, X2)) (mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2), afterNth#(X1, mark X2) -> afterNth#(X1, X2)) (mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2), afterNth#(X1, active X2) -> afterNth#(X1, X2)) (mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2), afterNth#(mark X1, X2) -> afterNth#(X1, X2)) (mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2), afterNth#(active X1, X2) -> afterNth#(X1, X2)) (active# head cons(N, XS) -> U31#(and(isNatural N, isLNat XS), N), U31#(X1, mark X2) -> U31#(X1, X2)) (active# head cons(N, XS) -> U31#(and(isNatural N, isLNat XS), N), U31#(X1, active X2) -> U31#(X1, X2)) (active# head cons(N, XS) -> U31#(and(isNatural N, isLNat XS), N), U31#(mark X1, X2) -> U31#(X1, X2)) (active# head cons(N, XS) -> U31#(and(isNatural N, isLNat XS), N), U31#(active X1, X2) -> U31#(X1, X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# fst X -> mark# X) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# fst X -> fst# mark X) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# fst X -> active# fst mark X) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# splitAt(X1, X2) -> mark# X1) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# splitAt(X1, X2) -> mark# X2) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U101(X1, X2, X3) -> mark# X1) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# tt() -> active# tt()) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# snd X -> mark# X) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# snd X -> active# snd mark X) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# snd X -> snd# mark X) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U11(X1, X2, X3) -> mark# X1) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U21(X1, X2) -> mark# X1) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U21(X1, X2) -> active# U21(mark X1, X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U21(X1, X2) -> U21#(mark X1, X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U31(X1, X2) -> mark# X1) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U31(X1, X2) -> active# U31(mark X1, X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U31(X1, X2) -> U31#(mark X1, X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# cons(X1, X2) -> mark# X1) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# cons(X1, X2) -> active# cons(mark X1, X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# cons(X1, X2) -> cons#(mark X1, X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# natsFrom X -> mark# X) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# natsFrom X -> active# natsFrom mark X) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# natsFrom X -> natsFrom# mark X) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# s X -> mark# X) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# s X -> active# s mark X) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# s X -> s# mark X) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U41(X1, X2) -> mark# X1) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U41(X1, X2) -> active# U41(mark X1, X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U41(X1, X2) -> U41#(mark X1, X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# head X -> mark# X) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# head X -> active# head mark X) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# head X -> head# mark X) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# afterNth(X1, X2) -> mark# X1) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# afterNth(X1, X2) -> mark# X2) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U51(X1, X2, X3) -> mark# X1) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U61(X1, X2) -> mark# X1) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U61(X1, X2) -> active# U61(mark X1, X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U61(X1, X2) -> U61#(mark X1, X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# pair(X1, X2) -> mark# X1) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# pair(X1, X2) -> mark# X2) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# nil() -> active# nil()) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U71(X1, X2) -> mark# X1) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U71(X1, X2) -> active# U71(mark X1, X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U71(X1, X2) -> U71#(mark X1, X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U82(X1, X2) -> mark# X1) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U82(X1, X2) -> active# U82(mark X1, X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U82(X1, X2) -> U82#(mark X1, X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U81(X1, X2, X3, X4) -> mark# X1) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U91(X1, X2) -> mark# X1) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U91(X1, X2) -> active# U91(mark X1, X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# U91(X1, X2) -> U91#(mark X1, X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# and(X1, X2) -> mark# X1) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# and(X1, X2) -> active# and(mark X1, X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# and(X1, X2) -> and#(mark X1, X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# isNatural X -> active# isNatural X) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# isLNat X -> active# isLNat X) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# isPLNat X -> active# isPLNat X) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# tail X -> mark# X) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# tail X -> active# tail mark X) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# tail X -> tail# mark X) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# take(X1, X2) -> mark# X1) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# take(X1, X2) -> mark# X2) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# take(X1, X2) -> active# take(mark X1, mark X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# take(X1, X2) -> take#(mark X1, mark X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# 0() -> active# 0()) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# sel(X1, X2) -> mark# X1) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# sel(X1, X2) -> mark# X2) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS), mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# fst X -> mark# X) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# fst X -> fst# mark X) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# fst X -> active# fst mark X) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# splitAt(X1, X2) -> mark# X1) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# splitAt(X1, X2) -> mark# X2) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# U101(X1, X2, X3) -> mark# X1) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# tt() -> active# tt()) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# snd X -> mark# X) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# snd X -> active# snd mark X) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# snd X -> snd# mark X) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# U11(X1, X2, X3) -> mark# X1) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# U21(X1, X2) -> mark# X1) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# U21(X1, X2) -> active# U21(mark X1, X2)) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# U21(X1, X2) -> U21#(mark X1, X2)) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# U31(X1, X2) -> mark# X1) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# U31(X1, X2) -> active# U31(mark X1, X2)) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# U31(X1, X2) -> U31#(mark X1, X2)) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# cons(X1, X2) -> mark# X1) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# cons(X1, X2) -> active# cons(mark X1, X2)) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# cons(X1, X2) -> cons#(mark X1, X2)) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# natsFrom X -> mark# X) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# natsFrom X -> active# natsFrom mark X) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# natsFrom X -> natsFrom# mark X) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# s X -> mark# X) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# s X -> active# s mark X) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# s X -> s# mark X) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# U41(X1, X2) -> mark# X1) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# U41(X1, X2) -> active# U41(mark X1, X2)) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# U41(X1, X2) -> U41#(mark X1, X2)) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# head X -> mark# X) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# head X -> active# head mark X) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# head X -> head# mark X) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# afterNth(X1, X2) -> mark# X1) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# afterNth(X1, X2) -> mark# X2) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# U51(X1, X2, X3) -> mark# X1) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# U61(X1, X2) -> mark# X1) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# U61(X1, X2) -> active# U61(mark X1, X2)) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# U61(X1, X2) -> U61#(mark X1, X2)) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# pair(X1, X2) -> mark# X1) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# pair(X1, X2) -> mark# X2) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, 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mark# and(X1, X2) -> and#(mark X1, X2)) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# isNatural X -> active# isNatural X) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# isLNat X -> active# isLNat X) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# isPLNat X -> active# isPLNat X) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# tail X -> mark# X) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# tail X -> active# tail mark X) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# tail X -> tail# mark X) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# take(X1, X2) -> mark# X1) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# take(X1, X2) -> mark# X2) (active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), mark# 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cons(X, XS)) -> isNatural# N) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# splitAt(s N, cons(X, XS)) -> isNatural# X) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# splitAt(s N, cons(X, XS)) -> isLNat# XS) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# splitAt(0(), XS) -> U71#(isLNat XS, XS)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# splitAt(0(), XS) -> isLNat# XS) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# U101(tt(), N, XS) -> fst# splitAt(N, XS)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# U101(tt(), N, XS) -> splitAt#(N, XS)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# snd pair(X, Y) -> U61#(and(isLNat X, isLNat Y), Y)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# snd pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# snd pair(X, Y) -> isLNat# X) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# snd pair(X, Y) -> isLNat# Y) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# U11(tt(), N, XS) -> mark# snd splitAt(N, XS)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# U11(tt(), N, XS) -> splitAt#(N, XS)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# U11(tt(), N, XS) -> snd# splitAt(N, XS)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# U21(tt(), X) -> mark# X) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# U31(tt(), N) -> mark# N) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# natsFrom N -> mark# U41(isNatural N, N)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# natsFrom N -> U41#(isNatural N, N)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# natsFrom N -> isNatural# N) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# U41(tt(), N) -> mark# cons(N, natsFrom s N)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# U41(tt(), N) -> cons#(N, natsFrom s N)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# U41(tt(), N) -> natsFrom# s N) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# U41(tt(), N) -> s# N) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# head 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X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# U51(tt(), N, XS) -> mark# head afterNth(N, XS)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# U51(tt(), N, XS) -> head# afterNth(N, XS)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# U51(tt(), N, XS) -> afterNth#(N, XS)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# U61(tt(), Y) -> mark# Y) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# U71(tt(), XS) -> mark# pair(nil(), XS)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# U71(tt(), XS) -> pair#(nil(), XS)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# U82(pair(YS, ZS), X) -> cons#(X, YS)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# U82(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS)) 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X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isNatural 0() -> mark# tt()) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isNatural sel(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isNatural sel(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isNatural sel(V1, V2) -> isNatural# V1) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isNatural sel(V1, V2) -> isLNat# V2) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isLNat fst V1 -> mark# isPLNat V1) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isLNat fst V1 -> isPLNat# V1) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isLNat snd V1 -> mark# isPLNat V1) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isLNat snd V1 -> isPLNat# V1) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isLNat cons(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isLNat cons(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isLNat cons(V1, V2) -> isNatural# V1) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isLNat cons(V1, V2) -> isLNat# V2) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isLNat natsFrom V1 -> mark# isNatural V1) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isLNat natsFrom V1 -> isNatural# V1) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isLNat afterNth(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isLNat afterNth(V1, V2) -> isNatural# V1) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isLNat afterNth(V1, V2) -> isLNat# V2) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isLNat nil() -> mark# tt()) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isLNat tail V1 -> mark# isLNat V1) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isLNat tail V1 -> isLNat# V1) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isLNat take(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isLNat take(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isLNat take(V1, V2) -> isNatural# V1) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isLNat take(V1, V2) -> isLNat# V2) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isPLNat splitAt(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isPLNat splitAt(V1, V2) -> isNatural# V1) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isPLNat splitAt(V1, V2) -> isLNat# V2) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isPLNat pair(V1, V2) -> and#(isLNat V1, isLNat V2)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isPLNat pair(V1, V2) -> isLNat# V1) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# isPLNat pair(V1, V2) -> isLNat# V2) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# tail cons(N, XS) -> U91#(and(isNatural N, isLNat XS), XS)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# tail cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# tail cons(N, XS) -> isNatural# N) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# tail cons(N, XS) -> isLNat# XS) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# take(N, XS) -> U101#(and(isNatural N, isLNat XS), N, XS)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# take(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# take(N, XS) -> isNatural# N) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# take(N, XS) -> isLNat# XS) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# sel(N, XS) -> U51#(and(isNatural N, isLNat XS), N, XS)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# sel(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# sel(N, XS) -> isNatural# N) (mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), active# sel(N, XS) -> isLNat# XS) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# fst pair(X, Y) -> U21#(and(isLNat X, isLNat Y), X)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# fst pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# fst pair(X, Y) -> isLNat# X) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# fst pair(X, Y) -> isLNat# Y) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# splitAt(s N, cons(X, XS)) -> U81#(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# splitAt(s N, cons(X, XS)) -> and#(isNatural N, and(isNatural X, isLNat XS))) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# splitAt(s N, cons(X, XS)) -> and#(isNatural X, isLNat XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# splitAt(s N, cons(X, XS)) -> isNatural# N) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# splitAt(s N, cons(X, XS)) -> isNatural# X) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# splitAt(s N, cons(X, XS)) -> isLNat# XS) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# splitAt(0(), XS) -> U71#(isLNat XS, XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# splitAt(0(), XS) -> isLNat# XS) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# U101(tt(), N, XS) -> fst# splitAt(N, XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# U101(tt(), N, XS) -> splitAt#(N, XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# snd pair(X, Y) -> U61#(and(isLNat X, isLNat Y), Y)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# snd pair(X, Y) -> and#(isLNat X, isLNat Y)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# snd pair(X, Y) -> isLNat# X) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# snd pair(X, Y) -> isLNat# Y) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# U11(tt(), N, XS) -> mark# snd splitAt(N, XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# U11(tt(), N, XS) -> splitAt#(N, XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# U11(tt(), N, XS) -> snd# splitAt(N, XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# U21(tt(), X) -> mark# X) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# U31(tt(), N) -> mark# N) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# natsFrom N -> mark# U41(isNatural N, N)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# natsFrom N -> U41#(isNatural N, N)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# natsFrom N -> isNatural# N) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# U41(tt(), N) -> mark# cons(N, natsFrom s N)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# U41(tt(), N) -> cons#(N, natsFrom s N)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# U41(tt(), N) -> natsFrom# s N) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# U41(tt(), N) -> s# N) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# head cons(N, XS) -> U31#(and(isNatural N, isLNat XS), N)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# head cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# head cons(N, XS) -> isNatural# N) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# head cons(N, XS) -> isLNat# XS) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# afterNth(N, XS) -> U11#(and(isNatural N, isLNat XS), N, XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# afterNth(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# afterNth(N, XS) -> isNatural# N) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# afterNth(N, XS) -> isLNat# XS) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# U51(tt(), N, XS) -> mark# head afterNth(N, XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# U51(tt(), N, XS) -> head# afterNth(N, XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# U51(tt(), N, XS) -> afterNth#(N, XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# U61(tt(), Y) -> mark# Y) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# U71(tt(), XS) -> mark# pair(nil(), XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# U71(tt(), XS) -> pair#(nil(), XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# U82(pair(YS, ZS), X) -> cons#(X, YS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# U82(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# U81(tt(), N, X, XS) -> splitAt#(N, XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# U81(tt(), N, X, XS) -> U82#(splitAt(N, XS), X)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# U91(tt(), XS) -> mark# XS) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# and(tt(), X) -> mark# X) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isNatural s V1 -> mark# isNatural V1) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isNatural s V1 -> isNatural# V1) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isNatural head V1 -> mark# isLNat V1) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isNatural head V1 -> isLNat# V1) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isNatural 0() -> mark# tt()) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isNatural sel(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isNatural sel(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isNatural sel(V1, V2) -> isNatural# V1) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isNatural sel(V1, V2) -> isLNat# V2) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isLNat fst V1 -> mark# isPLNat V1) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isLNat fst V1 -> isPLNat# V1) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isLNat snd V1 -> mark# isPLNat V1) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isLNat snd V1 -> isPLNat# V1) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isLNat cons(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isLNat cons(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isLNat cons(V1, V2) -> isNatural# V1) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isLNat cons(V1, V2) -> isLNat# V2) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isLNat natsFrom V1 -> mark# isNatural V1) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isLNat natsFrom V1 -> isNatural# V1) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isLNat afterNth(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isLNat afterNth(V1, V2) -> isNatural# V1) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isLNat afterNth(V1, V2) -> isLNat# V2) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isLNat nil() -> mark# tt()) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isLNat tail V1 -> mark# isLNat V1) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isLNat tail V1 -> isLNat# V1) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isLNat take(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isLNat take(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isLNat take(V1, V2) -> isNatural# V1) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isLNat take(V1, V2) -> isLNat# V2) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isPLNat splitAt(V1, V2) -> and#(isNatural V1, isLNat V2)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isPLNat splitAt(V1, V2) -> isNatural# V1) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isPLNat splitAt(V1, V2) -> isLNat# V2) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isPLNat pair(V1, V2) -> and#(isLNat V1, isLNat V2)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isPLNat pair(V1, V2) -> isLNat# V1) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# isPLNat pair(V1, V2) -> isLNat# V2) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# tail cons(N, XS) -> U91#(and(isNatural N, isLNat XS), XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# tail cons(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# tail cons(N, XS) -> isNatural# N) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# tail cons(N, XS) -> isLNat# XS) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# take(N, XS) -> U101#(and(isNatural N, isLNat XS), N, XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# take(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# take(N, XS) -> isNatural# N) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# take(N, XS) -> isLNat# XS) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# sel(N, XS) -> U51#(and(isNatural N, isLNat XS), N, XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# sel(N, XS) -> and#(isNatural N, isLNat XS)) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# sel(N, XS) -> isNatural# N) (mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), active# sel(N, XS) -> isLNat# XS) (active# U82(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS), pair#(X1, mark X2) -> pair#(X1, X2)) (active# U82(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS), pair#(X1, active X2) -> pair#(X1, X2)) (active# U82(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS), pair#(mark X1, X2) -> pair#(X1, X2)) (active# U82(pair(YS, ZS), X) -> pair#(cons(X, YS), ZS), pair#(active X1, X2) -> pair#(X1, X2)) (active# take(N, XS) -> isLNat# XS, isLNat# mark X -> isLNat# X) (active# take(N, XS) -> isLNat# XS, isLNat# active X -> isLNat# X) (active# U91(tt(), XS) -> mark# XS, mark# fst X -> mark# X) (active# U91(tt(), XS) -> mark# XS, mark# fst X -> fst# mark X) (active# U91(tt(), XS) -> mark# XS, mark# fst X -> active# fst mark X) (active# U91(tt(), XS) -> mark# XS, mark# splitAt(X1, X2) -> mark# X1) (active# U91(tt(), XS) -> mark# XS, mark# splitAt(X1, X2) -> mark# X2) (active# U91(tt(), XS) -> mark# XS, mark# splitAt(X1, X2) -> splitAt#(mark X1, mark X2)) (active# U91(tt(), XS) -> mark# XS, mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2)) (active# U91(tt(), XS) -> mark# XS, mark# U101(X1, X2, X3) -> mark# X1) (active# U91(tt(), XS) -> mark# XS, mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3)) (active# U91(tt(), XS) -> mark# XS, mark# U101(X1, X2, X3) -> U101#(mark X1, X2, X3)) (active# U91(tt(), XS) -> mark# XS, mark# tt() -> active# tt()) (active# U91(tt(), XS) -> mark# XS, mark# snd X -> mark# X) (active# U91(tt(), XS) -> mark# XS, mark# snd X -> active# snd mark X) (active# U91(tt(), XS) -> mark# XS, mark# snd X -> snd# mark X) (active# U91(tt(), XS) -> mark# XS, mark# U11(X1, X2, X3) -> mark# X1) (active# U91(tt(), XS) -> mark# XS, mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3)) (active# U91(tt(), XS) -> mark# XS, mark# U11(X1, X2, X3) -> U11#(mark X1, X2, X3)) (active# U91(tt(), XS) -> mark# XS, mark# U21(X1, X2) -> mark# X1) (active# U91(tt(), XS) -> mark# XS, mark# U21(X1, X2) -> active# U21(mark X1, X2)) (active# U91(tt(), XS) -> mark# XS, mark# U21(X1, X2) -> U21#(mark X1, X2)) (active# U91(tt(), XS) -> mark# XS, mark# U31(X1, X2) -> mark# X1) (active# U91(tt(), XS) -> mark# XS, mark# U31(X1, X2) -> active# U31(mark X1, X2)) (active# U91(tt(), XS) -> mark# XS, mark# U31(X1, X2) -> U31#(mark X1, X2)) (active# U91(tt(), XS) -> mark# XS, mark# cons(X1, X2) -> mark# X1) (active# U91(tt(), XS) -> mark# XS, mark# cons(X1, X2) -> active# cons(mark X1, X2)) (active# U91(tt(), XS) -> mark# XS, mark# cons(X1, X2) -> cons#(mark X1, X2)) (active# U91(tt(), XS) -> mark# XS, mark# natsFrom X -> mark# X) (active# U91(tt(), XS) -> mark# XS, mark# natsFrom X -> active# natsFrom mark X) (active# U91(tt(), XS) -> mark# XS, mark# natsFrom X -> natsFrom# mark X) (active# U91(tt(), XS) -> mark# XS, mark# s X -> mark# X) (active# U91(tt(), XS) -> mark# XS, mark# s X -> active# s mark X) (active# U91(tt(), XS) -> mark# XS, mark# s X -> s# mark X) (active# U91(tt(), XS) -> mark# XS, mark# U41(X1, X2) -> mark# X1) (active# U91(tt(), XS) -> mark# XS, mark# U41(X1, X2) -> active# U41(mark X1, X2)) (active# U91(tt(), XS) -> mark# XS, mark# U41(X1, X2) -> U41#(mark X1, X2)) (active# U91(tt(), XS) -> mark# XS, mark# head X -> mark# X) (active# U91(tt(), XS) -> mark# XS, mark# head X -> active# head mark X) (active# U91(tt(), XS) -> mark# XS, mark# head X -> head# mark X) (active# U91(tt(), XS) -> mark# XS, mark# afterNth(X1, X2) -> mark# X1) (active# U91(tt(), XS) -> mark# XS, mark# afterNth(X1, X2) -> mark# X2) (active# U91(tt(), XS) -> mark# XS, mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2)) (active# U91(tt(), XS) -> mark# XS, mark# afterNth(X1, X2) -> afterNth#(mark X1, mark X2)) (active# U91(tt(), XS) -> mark# XS, mark# U51(X1, X2, X3) -> mark# X1) (active# U91(tt(), XS) -> mark# XS, mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3)) (active# U91(tt(), XS) -> mark# XS, mark# U51(X1, X2, X3) -> U51#(mark X1, X2, X3)) (active# U91(tt(), XS) -> mark# XS, mark# U61(X1, X2) -> mark# X1) (active# U91(tt(), XS) -> mark# XS, mark# U61(X1, X2) -> active# U61(mark X1, X2)) (active# U91(tt(), XS) -> mark# XS, mark# U61(X1, X2) -> U61#(mark X1, X2)) (active# U91(tt(), XS) -> mark# XS, mark# pair(X1, X2) -> mark# X1) (active# U91(tt(), XS) -> mark# XS, mark# pair(X1, X2) -> mark# X2) (active# U91(tt(), XS) -> mark# XS, mark# pair(X1, X2) -> active# pair(mark X1, mark X2)) (active# U91(tt(), XS) -> mark# XS, mark# pair(X1, X2) -> pair#(mark X1, mark X2)) (active# U91(tt(), XS) -> mark# XS, mark# nil() -> active# nil()) (active# U91(tt(), XS) -> mark# XS, mark# U71(X1, X2) -> mark# X1) (active# U91(tt(), XS) -> mark# XS, mark# U71(X1, X2) -> active# U71(mark X1, X2)) (active# U91(tt(), XS) -> mark# XS, mark# U71(X1, X2) -> U71#(mark X1, X2)) (active# U91(tt(), XS) -> mark# XS, mark# U82(X1, X2) -> mark# X1) (active# U91(tt(), XS) -> mark# XS, mark# U82(X1, X2) -> active# U82(mark X1, X2)) (active# U91(tt(), XS) -> mark# XS, mark# U82(X1, X2) -> U82#(mark X1, X2)) (active# U91(tt(), XS) -> mark# XS, mark# U81(X1, X2, X3, X4) -> mark# X1) (active# U91(tt(), XS) -> mark# XS, mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4)) (active# U91(tt(), XS) -> mark# XS, mark# U81(X1, X2, X3, X4) -> U81#(mark X1, X2, X3, X4)) (active# U91(tt(), XS) -> mark# XS, mark# U91(X1, X2) -> mark# X1) (active# U91(tt(), XS) -> mark# XS, mark# U91(X1, X2) -> active# U91(mark X1, X2)) (active# U91(tt(), XS) -> mark# XS, mark# U91(X1, X2) -> U91#(mark X1, X2)) (active# U91(tt(), XS) -> mark# XS, mark# and(X1, X2) -> mark# X1) (active# U91(tt(), XS) -> mark# XS, mark# and(X1, X2) -> active# and(mark X1, X2)) (active# U91(tt(), XS) -> mark# XS, mark# and(X1, X2) -> and#(mark X1, X2)) (active# U91(tt(), XS) -> mark# XS, mark# isNatural X -> active# isNatural X) (active# U91(tt(), XS) -> mark# XS, mark# isLNat X -> active# isLNat X) (active# U91(tt(), XS) -> mark# XS, mark# isPLNat X -> active# isPLNat X) (active# U91(tt(), XS) -> mark# XS, mark# tail X -> mark# X) (active# U91(tt(), XS) -> mark# XS, mark# tail X -> active# tail mark X) (active# U91(tt(), XS) -> mark# XS, mark# tail X -> tail# mark X) (active# U91(tt(), XS) -> mark# XS, mark# take(X1, X2) -> mark# X1) (active# U91(tt(), XS) -> mark# XS, mark# take(X1, X2) -> mark# X2) (active# U91(tt(), XS) -> mark# XS, mark# take(X1, X2) -> active# take(mark X1, mark X2)) (active# U91(tt(), XS) -> mark# XS, mark# take(X1, X2) -> take#(mark X1, mark X2)) (active# U91(tt(), XS) -> mark# XS, mark# 0() -> active# 0()) (active# U91(tt(), XS) -> mark# XS, mark# sel(X1, X2) -> mark# X1) (active# U91(tt(), XS) -> mark# XS, mark# sel(X1, X2) -> mark# X2) (active# U91(tt(), XS) -> mark# XS, mark# sel(X1, X2) -> active# sel(mark X1, mark X2)) (active# U91(tt(), XS) -> mark# XS, mark# sel(X1, X2) -> sel#(mark X1, mark X2)) (active# head cons(N, XS) -> isLNat# XS, isLNat# mark X -> isLNat# X) (active# head cons(N, XS) -> isLNat# XS, isLNat# active X -> isLNat# X) (active# splitAt(s N, cons(X, XS)) -> isLNat# XS, isLNat# mark X -> isLNat# X) (active# splitAt(s N, cons(X, XS)) -> isLNat# XS, isLNat# active X -> isLNat# X) (active# fst pair(X, Y) -> U21#(and(isLNat X, isLNat Y), X), U21#(X1, mark X2) -> U21#(X1, X2)) (active# fst pair(X, Y) -> U21#(and(isLNat X, isLNat Y), X), U21#(X1, active X2) -> U21#(X1, X2)) (active# fst pair(X, Y) -> U21#(and(isLNat X, isLNat Y), X), U21#(mark X1, X2) -> U21#(X1, X2)) (active# fst pair(X, Y) -> U21#(and(isLNat X, isLNat Y), X), U21#(active X1, X2) -> U21#(X1, X2)) (active# isPLNat splitAt(V1, V2) -> isLNat# V2, isLNat# mark X -> isLNat# X) (active# isPLNat splitAt(V1, V2) -> isLNat# V2, isLNat# active X -> isLNat# X) (active# isLNat afterNth(V1, V2) -> isLNat# V2, isLNat# mark X -> isLNat# X) (active# isLNat afterNth(V1, V2) -> isLNat# V2, isLNat# active X -> isLNat# X) (active# isNatural sel(V1, V2) -> isLNat# V2, isLNat# mark X -> isLNat# X) (active# isNatural sel(V1, V2) -> isLNat# V2, isLNat# active X -> isLNat# X) } STATUS: arrows: 0.891353 SCCS (28): Scc: { mark# fst X -> mark# X, mark# fst X -> active# fst mark X, mark# splitAt(X1, X2) -> mark# X1, mark# splitAt(X1, X2) -> mark# X2, mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), mark# U101(X1, X2, X3) -> mark# X1, mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), mark# tt() -> active# tt(), mark# snd X -> mark# X, mark# snd X -> active# snd mark X, mark# U11(X1, X2, X3) -> mark# X1, mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), mark# U21(X1, X2) -> mark# X1, mark# U21(X1, X2) -> active# U21(mark X1, X2), mark# U31(X1, X2) -> mark# X1, mark# U31(X1, X2) -> active# U31(mark X1, X2), mark# cons(X1, X2) -> mark# X1, mark# cons(X1, X2) -> active# cons(mark X1, X2), mark# natsFrom X -> mark# X, mark# natsFrom X -> active# natsFrom mark X, mark# s X -> mark# X, mark# s X -> active# s mark X, mark# U41(X1, X2) -> mark# X1, mark# U41(X1, X2) -> active# U41(mark X1, X2), mark# head X -> mark# X, mark# head X -> active# head mark X, mark# afterNth(X1, X2) -> mark# X1, mark# afterNth(X1, X2) -> mark# X2, mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), mark# U51(X1, X2, X3) -> mark# X1, mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), mark# U61(X1, X2) -> mark# X1, mark# U61(X1, X2) -> active# U61(mark X1, X2), mark# pair(X1, X2) -> mark# X1, mark# pair(X1, X2) -> mark# X2, mark# pair(X1, X2) -> active# pair(mark X1, mark X2), mark# nil() -> active# nil(), mark# U71(X1, X2) -> mark# X1, mark# U71(X1, X2) -> active# U71(mark X1, X2), mark# U82(X1, X2) -> mark# X1, mark# U82(X1, X2) -> active# U82(mark X1, X2), mark# U81(X1, X2, X3, X4) -> mark# X1, mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), mark# U91(X1, X2) -> mark# X1, mark# U91(X1, X2) -> active# U91(mark X1, X2), mark# and(X1, X2) -> mark# X1, mark# and(X1, X2) -> active# and(mark X1, X2), mark# isNatural X -> active# isNatural X, mark# isLNat X -> active# isLNat X, mark# isPLNat X -> active# isPLNat X, mark# tail X -> mark# X, mark# tail X -> active# tail mark X, mark# take(X1, X2) -> mark# X1, mark# take(X1, X2) -> mark# X2, mark# take(X1, X2) -> active# take(mark X1, mark X2), mark# 0() -> active# 0(), mark# sel(X1, X2) -> mark# X1, mark# sel(X1, X2) -> mark# X2, mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), active# U11(tt(), N, XS) -> mark# snd splitAt(N, XS), active# U21(tt(), X) -> mark# X, active# U31(tt(), N) -> mark# N, active# natsFrom N -> mark# U41(isNatural N, N), active# U41(tt(), N) -> mark# cons(N, natsFrom s N), active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), active# U61(tt(), Y) -> mark# Y, active# U71(tt(), XS) -> mark# pair(nil(), XS), active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), active# U91(tt(), XS) -> mark# XS, active# and(tt(), X) -> mark# X, active# isNatural s V1 -> mark# isNatural V1, active# isNatural head V1 -> mark# isLNat V1, active# isNatural 0() -> mark# tt(), active# isNatural sel(V1, V2) -> mark# and(isNatural V1, isLNat V2), active# isLNat fst V1 -> mark# isPLNat V1, active# isLNat snd V1 -> mark# isPLNat V1, active# isLNat cons(V1, V2) -> mark# and(isNatural V1, isLNat V2), active# isLNat natsFrom V1 -> mark# isNatural V1, active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), active# isLNat nil() -> mark# tt(), active# isLNat tail V1 -> mark# isLNat V1, active# isLNat take(V1, V2) -> mark# and(isNatural V1, isLNat V2), active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS)} Scc: { sel#(X1, mark X2) -> sel#(X1, X2), sel#(X1, active X2) -> sel#(X1, X2), sel#(mark X1, X2) -> sel#(X1, X2), sel#(active X1, X2) -> sel#(X1, X2)} Scc: { take#(X1, mark X2) -> take#(X1, X2), take#(X1, active X2) -> take#(X1, X2), take#(mark X1, X2) -> take#(X1, X2), take#(active X1, X2) -> take#(X1, X2)} Scc: { tail# mark X -> tail# X, tail# active X -> tail# X} Scc: { isPLNat# mark X -> isPLNat# X, isPLNat# active X -> isPLNat# X} Scc: { U91#(X1, mark X2) -> U91#(X1, X2), U91#(X1, active X2) -> U91#(X1, X2), U91#(mark X1, X2) -> U91#(X1, X2), U91#(active X1, X2) -> U91#(X1, X2)} Scc: { pair#(X1, mark X2) -> pair#(X1, X2), pair#(X1, active X2) -> pair#(X1, X2), pair#(mark X1, X2) -> pair#(X1, X2), pair#(active X1, X2) -> pair#(X1, X2)} Scc: { U51#(X1, X2, mark X3) -> U51#(X1, X2, X3), U51#(X1, X2, active X3) -> U51#(X1, X2, X3), U51#(X1, mark X2, X3) -> U51#(X1, X2, X3), U51#(X1, active X2, X3) -> U51#(X1, X2, X3), U51#(mark X1, X2, X3) -> U51#(X1, X2, X3), U51#(active X1, X2, X3) -> U51#(X1, X2, X3)} Scc: { afterNth#(X1, mark X2) -> afterNth#(X1, X2), afterNth#(X1, active X2) -> afterNth#(X1, X2), afterNth#(mark X1, X2) -> afterNth#(X1, X2), afterNth#(active X1, X2) -> afterNth#(X1, X2)} Scc: { head# mark X -> head# X, head# active X -> head# X} Scc: { s# mark X -> s# X, s# active X -> s# X} Scc: { natsFrom# mark X -> natsFrom# X, natsFrom# active X -> natsFrom# X} Scc: { U41#(X1, mark X2) -> U41#(X1, X2), U41#(X1, active X2) -> U41#(X1, X2), U41#(mark X1, X2) -> U41#(X1, X2), U41#(active X1, X2) -> U41#(X1, X2)} Scc: { cons#(X1, mark X2) -> cons#(X1, X2), cons#(X1, active X2) -> cons#(X1, X2), cons#(mark X1, X2) -> cons#(X1, X2), cons#(active X1, X2) -> cons#(X1, X2)} Scc: { U31#(X1, mark X2) -> U31#(X1, X2), U31#(X1, active X2) -> U31#(X1, X2), U31#(mark X1, X2) -> U31#(X1, X2), U31#(active X1, X2) -> U31#(X1, X2)} Scc: { U11#(X1, X2, mark X3) -> U11#(X1, X2, X3), U11#(X1, X2, active X3) -> U11#(X1, X2, X3), U11#(X1, mark X2, X3) -> U11#(X1, X2, X3), U11#(X1, active X2, X3) -> U11#(X1, X2, X3), U11#(mark X1, X2, X3) -> U11#(X1, X2, X3), U11#(active X1, X2, X3) -> U11#(X1, X2, X3)} Scc: { U61#(X1, mark X2) -> U61#(X1, X2), U61#(X1, active X2) -> U61#(X1, X2), U61#(mark X1, X2) -> U61#(X1, X2), U61#(active X1, X2) -> U61#(X1, X2)} Scc: { snd# mark X -> snd# X, snd# active X -> snd# X} Scc: { U71#(X1, mark X2) -> U71#(X1, X2), U71#(X1, active X2) -> U71#(X1, X2), U71#(mark X1, X2) -> U71#(X1, X2), U71#(active X1, X2) -> U71#(X1, X2)} Scc: { U101#(X1, X2, mark X3) -> U101#(X1, X2, X3), U101#(X1, X2, active X3) -> U101#(X1, X2, X3), U101#(X1, mark X2, X3) -> U101#(X1, X2, X3), U101#(X1, active X2, X3) -> U101#(X1, X2, X3), U101#(mark X1, X2, X3) -> U101#(X1, X2, X3), U101#(active X1, X2, X3) -> U101#(X1, X2, X3)} Scc: { isNatural# mark X -> isNatural# X, isNatural# active X -> isNatural# X} Scc: { U81#(X1, X2, X3, mark X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, X3, active X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, mark X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, active X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, mark X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, active X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(mark X1, X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(active X1, X2, X3, X4) -> U81#(X1, X2, X3, X4)} Scc: { and#(X1, mark X2) -> and#(X1, X2), and#(X1, active X2) -> and#(X1, X2), and#(mark X1, X2) -> and#(X1, X2), and#(active X1, X2) -> and#(X1, X2)} Scc: { splitAt#(X1, mark X2) -> splitAt#(X1, X2), splitAt#(X1, active X2) -> splitAt#(X1, X2), splitAt#(mark X1, X2) -> splitAt#(X1, X2), splitAt#(active X1, X2) -> splitAt#(X1, X2)} Scc: { fst# mark X -> fst# X, fst# active X -> fst# X} Scc: { U82#(X1, mark X2) -> U82#(X1, X2), U82#(X1, active X2) -> U82#(X1, X2), U82#(mark X1, X2) -> U82#(X1, X2), U82#(active X1, X2) -> U82#(X1, X2)} Scc: { U21#(X1, mark X2) -> U21#(X1, X2), U21#(X1, active X2) -> U21#(X1, X2), U21#(mark X1, X2) -> U21#(X1, X2), U21#(active X1, X2) -> U21#(X1, X2)} Scc: { isLNat# mark X -> isLNat# X, isLNat# active X -> isLNat# X} SCC (95): Strict: { mark# fst X -> mark# X, mark# fst X -> active# fst mark X, mark# splitAt(X1, X2) -> mark# X1, mark# splitAt(X1, X2) -> mark# X2, mark# splitAt(X1, X2) -> active# splitAt(mark X1, mark X2), mark# U101(X1, X2, X3) -> mark# X1, mark# U101(X1, X2, X3) -> active# U101(mark X1, X2, X3), mark# tt() -> active# tt(), mark# snd X -> mark# X, mark# snd X -> active# snd mark X, mark# U11(X1, X2, X3) -> mark# X1, mark# U11(X1, X2, X3) -> active# U11(mark X1, X2, X3), mark# U21(X1, X2) -> mark# X1, mark# U21(X1, X2) -> active# U21(mark X1, X2), mark# U31(X1, X2) -> mark# X1, mark# U31(X1, X2) -> active# U31(mark X1, X2), mark# cons(X1, X2) -> mark# X1, mark# cons(X1, X2) -> active# cons(mark X1, X2), mark# natsFrom X -> mark# X, mark# natsFrom X -> active# natsFrom mark X, mark# s X -> mark# X, mark# s X -> active# s mark X, mark# U41(X1, X2) -> mark# X1, mark# U41(X1, X2) -> active# U41(mark X1, X2), mark# head X -> mark# X, mark# head X -> active# head mark X, mark# afterNth(X1, X2) -> mark# X1, mark# afterNth(X1, X2) -> mark# X2, mark# afterNth(X1, X2) -> active# afterNth(mark X1, mark X2), mark# U51(X1, X2, X3) -> mark# X1, mark# U51(X1, X2, X3) -> active# U51(mark X1, X2, X3), mark# U61(X1, X2) -> mark# X1, mark# U61(X1, X2) -> active# U61(mark X1, X2), mark# pair(X1, X2) -> mark# X1, mark# pair(X1, X2) -> mark# X2, mark# pair(X1, X2) -> active# pair(mark X1, mark X2), mark# nil() -> active# nil(), mark# U71(X1, X2) -> mark# X1, mark# U71(X1, X2) -> active# U71(mark X1, X2), mark# U82(X1, X2) -> mark# X1, mark# U82(X1, X2) -> active# U82(mark X1, X2), mark# U81(X1, X2, X3, X4) -> mark# X1, mark# U81(X1, X2, X3, X4) -> active# U81(mark X1, X2, X3, X4), mark# U91(X1, X2) -> mark# X1, mark# U91(X1, X2) -> active# U91(mark X1, X2), mark# and(X1, X2) -> mark# X1, mark# and(X1, X2) -> active# and(mark X1, X2), mark# isNatural X -> active# isNatural X, mark# isLNat X -> active# isLNat X, mark# isPLNat X -> active# isPLNat X, mark# tail X -> mark# X, mark# tail X -> active# tail mark X, mark# take(X1, X2) -> mark# X1, mark# take(X1, X2) -> mark# X2, mark# take(X1, X2) -> active# take(mark X1, mark X2), mark# 0() -> active# 0(), mark# sel(X1, X2) -> mark# X1, mark# sel(X1, X2) -> mark# X2, mark# sel(X1, X2) -> active# sel(mark X1, mark X2), active# fst pair(X, Y) -> mark# U21(and(isLNat X, isLNat Y), X), active# splitAt(s N, cons(X, XS)) -> mark# U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active# splitAt(0(), XS) -> mark# U71(isLNat XS, XS), active# U101(tt(), N, XS) -> mark# fst splitAt(N, XS), active# snd pair(X, Y) -> mark# U61(and(isLNat X, isLNat Y), Y), active# U11(tt(), N, XS) -> mark# snd splitAt(N, XS), active# U21(tt(), X) -> mark# X, active# U31(tt(), N) -> mark# N, active# natsFrom N -> mark# U41(isNatural N, N), active# U41(tt(), N) -> mark# cons(N, natsFrom s N), active# head cons(N, XS) -> mark# U31(and(isNatural N, isLNat XS), N), active# afterNth(N, XS) -> mark# U11(and(isNatural N, isLNat XS), N, XS), active# U51(tt(), N, XS) -> mark# head afterNth(N, XS), active# U61(tt(), Y) -> mark# Y, active# U71(tt(), XS) -> mark# pair(nil(), XS), active# U82(pair(YS, ZS), X) -> mark# pair(cons(X, YS), ZS), active# U81(tt(), N, X, XS) -> mark# U82(splitAt(N, XS), X), active# U91(tt(), XS) -> mark# XS, active# and(tt(), X) -> mark# X, active# isNatural s V1 -> mark# isNatural V1, active# isNatural head V1 -> mark# isLNat V1, active# isNatural 0() -> mark# tt(), active# isNatural sel(V1, V2) -> mark# and(isNatural V1, isLNat V2), active# isLNat fst V1 -> mark# isPLNat V1, active# isLNat snd V1 -> mark# isPLNat V1, active# isLNat cons(V1, V2) -> mark# and(isNatural V1, isLNat V2), active# isLNat natsFrom V1 -> mark# isNatural V1, active# isLNat afterNth(V1, V2) -> mark# and(isNatural V1, isLNat V2), active# isLNat nil() -> mark# tt(), active# isLNat tail V1 -> mark# isLNat V1, active# isLNat take(V1, V2) -> mark# and(isNatural V1, isLNat V2), active# isPLNat splitAt(V1, V2) -> mark# and(isNatural V1, isLNat V2), active# isPLNat pair(V1, V2) -> mark# and(isLNat V1, isLNat V2), active# tail cons(N, XS) -> mark# U91(and(isNatural N, isLNat XS), XS), active# take(N, XS) -> mark# U101(and(isNatural N, isLNat XS), N, XS), active# sel(N, XS) -> mark# U51(and(isNatural N, isLNat XS), N, XS)} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (4): Strict: { sel#(X1, mark X2) -> sel#(X1, X2), sel#(X1, active X2) -> sel#(X1, X2), sel#(mark X1, X2) -> sel#(X1, X2), sel#(active X1, X2) -> sel#(X1, X2)} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (4): Strict: { take#(X1, mark X2) -> take#(X1, X2), take#(X1, active X2) -> take#(X1, X2), take#(mark X1, X2) -> take#(X1, X2), take#(active X1, X2) -> take#(X1, X2)} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (2): Strict: { tail# mark X -> tail# X, tail# active X -> tail# X} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (2): Strict: { isPLNat# mark X -> isPLNat# X, isPLNat# active X -> isPLNat# X} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (4): Strict: { U91#(X1, mark X2) -> U91#(X1, X2), U91#(X1, active X2) -> U91#(X1, X2), U91#(mark X1, X2) -> U91#(X1, X2), U91#(active X1, X2) -> U91#(X1, X2)} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (4): Strict: { pair#(X1, mark X2) -> pair#(X1, X2), pair#(X1, active X2) -> pair#(X1, X2), pair#(mark X1, X2) -> pair#(X1, X2), pair#(active X1, X2) -> pair#(X1, X2)} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (6): Strict: { U51#(X1, X2, mark X3) -> U51#(X1, X2, X3), U51#(X1, X2, active X3) -> U51#(X1, X2, X3), U51#(X1, mark X2, X3) -> U51#(X1, X2, X3), U51#(X1, active X2, X3) -> U51#(X1, X2, X3), U51#(mark X1, X2, X3) -> U51#(X1, X2, X3), U51#(active X1, X2, X3) -> U51#(X1, X2, X3)} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (4): Strict: { afterNth#(X1, mark X2) -> afterNth#(X1, X2), afterNth#(X1, active X2) -> afterNth#(X1, X2), afterNth#(mark X1, X2) -> afterNth#(X1, X2), afterNth#(active X1, X2) -> afterNth#(X1, X2)} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (2): Strict: { head# mark X -> head# X, head# active X -> head# X} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (2): Strict: { s# mark X -> s# X, s# active X -> s# X} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (2): Strict: { natsFrom# mark X -> natsFrom# X, natsFrom# active X -> natsFrom# X} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (4): Strict: { U41#(X1, mark X2) -> U41#(X1, X2), U41#(X1, active X2) -> U41#(X1, X2), U41#(mark X1, X2) -> U41#(X1, X2), U41#(active X1, X2) -> U41#(X1, X2)} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (4): Strict: { cons#(X1, mark X2) -> cons#(X1, X2), cons#(X1, active X2) -> cons#(X1, X2), cons#(mark X1, X2) -> cons#(X1, X2), cons#(active X1, X2) -> cons#(X1, X2)} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (4): Strict: { U31#(X1, mark X2) -> U31#(X1, X2), U31#(X1, active X2) -> U31#(X1, X2), U31#(mark X1, X2) -> U31#(X1, X2), U31#(active X1, X2) -> U31#(X1, X2)} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (6): Strict: { U11#(X1, X2, mark X3) -> U11#(X1, X2, X3), U11#(X1, X2, active X3) -> U11#(X1, X2, X3), U11#(X1, mark X2, X3) -> U11#(X1, X2, X3), U11#(X1, active X2, X3) -> U11#(X1, X2, X3), U11#(mark X1, X2, X3) -> U11#(X1, X2, X3), U11#(active X1, X2, X3) -> U11#(X1, X2, X3)} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (4): Strict: { U61#(X1, mark X2) -> U61#(X1, X2), U61#(X1, active X2) -> U61#(X1, X2), U61#(mark X1, X2) -> U61#(X1, X2), U61#(active X1, X2) -> U61#(X1, X2)} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (2): Strict: { snd# mark X -> snd# X, snd# active X -> snd# X} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (4): Strict: { U71#(X1, mark X2) -> U71#(X1, X2), U71#(X1, active X2) -> U71#(X1, X2), U71#(mark X1, X2) -> U71#(X1, X2), U71#(active X1, X2) -> U71#(X1, X2)} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (6): Strict: { U101#(X1, X2, mark X3) -> U101#(X1, X2, X3), U101#(X1, X2, active X3) -> U101#(X1, X2, X3), U101#(X1, mark X2, X3) -> U101#(X1, X2, X3), U101#(X1, active X2, X3) -> U101#(X1, X2, X3), U101#(mark X1, X2, X3) -> U101#(X1, X2, X3), U101#(active X1, X2, X3) -> U101#(X1, X2, X3)} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (2): Strict: { isNatural# mark X -> isNatural# X, isNatural# active X -> isNatural# X} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (8): Strict: { U81#(X1, X2, X3, mark X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, X3, active X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, mark X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, X2, active X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, mark X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(X1, active X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(mark X1, X2, X3, X4) -> U81#(X1, X2, X3, X4), U81#(active X1, X2, X3, X4) -> U81#(X1, X2, X3, X4)} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (4): Strict: { and#(X1, mark X2) -> and#(X1, X2), and#(X1, active X2) -> and#(X1, X2), and#(mark X1, X2) -> and#(X1, X2), and#(active X1, X2) -> and#(X1, X2)} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (4): Strict: { splitAt#(X1, mark X2) -> splitAt#(X1, X2), splitAt#(X1, active X2) -> splitAt#(X1, X2), splitAt#(mark X1, X2) -> splitAt#(X1, X2), splitAt#(active X1, X2) -> splitAt#(X1, X2)} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (2): Strict: { fst# mark X -> fst# X, fst# active X -> fst# X} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (4): Strict: { U82#(X1, mark X2) -> U82#(X1, X2), U82#(X1, active X2) -> U82#(X1, X2), U82#(mark X1, X2) -> U82#(X1, X2), U82#(active X1, X2) -> U82#(X1, X2)} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (4): Strict: { U21#(X1, mark X2) -> U21#(X1, X2), U21#(X1, active X2) -> U21#(X1, X2), U21#(mark X1, X2) -> U21#(X1, X2), U21#(active X1, X2) -> U21#(X1, X2)} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open SCC (2): Strict: { isLNat# mark X -> isLNat# X, isLNat# active X -> isLNat# X} Weak: { mark fst X -> active fst mark X, mark splitAt(X1, X2) -> active splitAt(mark X1, mark X2), mark U101(X1, X2, X3) -> active U101(mark X1, X2, X3), mark tt() -> active tt(), mark snd X -> active snd mark X, mark U11(X1, X2, X3) -> active U11(mark X1, X2, X3), mark U21(X1, X2) -> active U21(mark X1, X2), mark U31(X1, X2) -> active U31(mark X1, X2), mark cons(X1, X2) -> active cons(mark X1, X2), mark natsFrom X -> active natsFrom mark X, mark s X -> active s mark X, mark U41(X1, X2) -> active U41(mark X1, X2), mark head X -> active head mark X, mark afterNth(X1, X2) -> active afterNth(mark X1, mark X2), mark U51(X1, X2, X3) -> active U51(mark X1, X2, X3), mark U61(X1, X2) -> active U61(mark X1, X2), mark pair(X1, X2) -> active pair(mark X1, mark X2), mark nil() -> active nil(), mark U71(X1, X2) -> active U71(mark X1, X2), mark U82(X1, X2) -> active U82(mark X1, X2), mark U81(X1, X2, X3, X4) -> active U81(mark X1, X2, X3, X4), mark U91(X1, X2) -> active U91(mark X1, X2), mark and(X1, X2) -> active and(mark X1, X2), mark isNatural X -> active isNatural X, mark isLNat X -> active isLNat X, mark isPLNat X -> active isPLNat X, mark tail X -> active tail mark X, mark take(X1, X2) -> active take(mark X1, mark X2), mark 0() -> active 0(), mark sel(X1, X2) -> active sel(mark X1, mark X2), fst mark X -> fst X, fst active X -> fst X, splitAt(X1, mark X2) -> splitAt(X1, X2), splitAt(X1, active X2) -> splitAt(X1, X2), splitAt(mark X1, X2) -> splitAt(X1, X2), splitAt(active X1, X2) -> splitAt(X1, X2), active fst pair(X, Y) -> mark U21(and(isLNat X, isLNat Y), X), active splitAt(s N, cons(X, XS)) -> mark U81(and(isNatural N, and(isNatural X, isLNat XS)), N, X, XS), active splitAt(0(), XS) -> mark U71(isLNat XS, XS), active U101(tt(), N, XS) -> mark fst splitAt(N, XS), active snd pair(X, Y) -> mark U61(and(isLNat X, isLNat Y), Y), active U11(tt(), N, XS) -> mark snd splitAt(N, XS), active U21(tt(), X) -> mark X, active U31(tt(), N) -> mark N, active natsFrom N -> mark U41(isNatural N, N), active U41(tt(), N) -> mark cons(N, natsFrom s N), active head cons(N, XS) -> mark U31(and(isNatural N, isLNat XS), N), active afterNth(N, XS) -> mark U11(and(isNatural N, isLNat XS), N, XS), active U51(tt(), N, XS) -> mark head afterNth(N, XS), active U61(tt(), Y) -> mark Y, active U71(tt(), XS) -> mark pair(nil(), XS), active U82(pair(YS, ZS), X) -> mark pair(cons(X, YS), ZS), active U81(tt(), N, X, XS) -> mark U82(splitAt(N, XS), X), active U91(tt(), XS) -> mark XS, active and(tt(), X) -> mark X, active isNatural s V1 -> mark isNatural V1, active isNatural head V1 -> mark isLNat V1, active isNatural 0() -> mark tt(), active isNatural sel(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat fst V1 -> mark isPLNat V1, active isLNat snd V1 -> mark isPLNat V1, active isLNat cons(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat natsFrom V1 -> mark isNatural V1, active isLNat afterNth(V1, V2) -> mark and(isNatural V1, isLNat V2), active isLNat nil() -> mark tt(), active isLNat tail V1 -> mark isLNat V1, active isLNat take(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat splitAt(V1, V2) -> mark and(isNatural V1, isLNat V2), active isPLNat pair(V1, V2) -> mark and(isLNat V1, isLNat V2), active tail cons(N, XS) -> mark U91(and(isNatural N, isLNat XS), XS), active take(N, XS) -> mark U101(and(isNatural N, isLNat XS), N, XS), active sel(N, XS) -> mark U51(and(isNatural N, isLNat XS), N, XS), U101(X1, X2, mark X3) -> U101(X1, X2, X3), U101(X1, X2, active X3) -> U101(X1, X2, X3), U101(X1, mark X2, X3) -> U101(X1, X2, X3), U101(X1, active X2, X3) -> U101(X1, X2, X3), U101(mark X1, X2, X3) -> U101(X1, X2, X3), U101(active X1, X2, X3) -> U101(X1, X2, X3), snd mark X -> snd X, snd active X -> snd X, U11(X1, X2, mark X3) -> U11(X1, X2, X3), U11(X1, X2, active X3) -> U11(X1, X2, X3), U11(X1, mark X2, X3) -> U11(X1, X2, X3), U11(X1, active X2, X3) -> U11(X1, X2, X3), U11(mark X1, X2, X3) -> U11(X1, X2, X3), U11(active X1, X2, X3) -> U11(X1, X2, X3), U21(X1, mark X2) -> U21(X1, X2), U21(X1, active X2) -> U21(X1, X2), U21(mark X1, X2) -> U21(X1, X2), U21(active X1, X2) -> U21(X1, X2), U31(X1, mark X2) -> U31(X1, X2), U31(X1, active X2) -> U31(X1, X2), U31(mark X1, X2) -> U31(X1, X2), U31(active X1, X2) -> U31(X1, X2), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), natsFrom mark X -> natsFrom X, natsFrom active X -> natsFrom X, s mark X -> s X, s active X -> s X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), head mark X -> head X, head active X -> head X, afterNth(X1, mark X2) -> afterNth(X1, X2), afterNth(X1, active X2) -> afterNth(X1, X2), afterNth(mark X1, X2) -> afterNth(X1, X2), afterNth(active X1, X2) -> afterNth(X1, X2), U51(X1, X2, mark X3) -> U51(X1, X2, X3), U51(X1, X2, active X3) -> U51(X1, X2, X3), U51(X1, mark X2, X3) -> U51(X1, X2, X3), U51(X1, active X2, X3) -> U51(X1, X2, X3), U51(mark X1, X2, X3) -> U51(X1, X2, X3), U51(active X1, X2, X3) -> U51(X1, X2, X3), U61(X1, mark X2) -> U61(X1, X2), U61(X1, active X2) -> U61(X1, X2), U61(mark X1, X2) -> U61(X1, X2), U61(active X1, X2) -> U61(X1, X2), pair(X1, mark X2) -> pair(X1, X2), pair(X1, active X2) -> pair(X1, X2), pair(mark X1, X2) -> pair(X1, X2), pair(active X1, X2) -> pair(X1, X2), U71(X1, mark X2) -> U71(X1, X2), U71(X1, active X2) -> U71(X1, X2), U71(mark X1, X2) -> U71(X1, X2), U71(active X1, X2) -> U71(X1, X2), U82(X1, mark X2) -> U82(X1, X2), U82(X1, active X2) -> U82(X1, X2), U82(mark X1, X2) -> U82(X1, X2), U82(active X1, X2) -> U82(X1, X2), U81(X1, X2, X3, mark X4) -> U81(X1, X2, X3, X4), U81(X1, X2, X3, active X4) -> U81(X1, X2, X3, X4), U81(X1, X2, mark X3, X4) -> U81(X1, X2, X3, X4), U81(X1, X2, active X3, X4) -> U81(X1, X2, X3, X4), U81(X1, mark X2, X3, X4) -> U81(X1, X2, X3, X4), U81(X1, active X2, X3, X4) -> U81(X1, X2, X3, X4), U81(mark X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U81(active X1, X2, X3, X4) -> U81(X1, X2, X3, X4), U91(X1, mark X2) -> U91(X1, X2), U91(X1, active X2) -> U91(X1, X2), U91(mark X1, X2) -> U91(X1, X2), U91(active X1, X2) -> U91(X1, X2), and(X1, mark X2) -> and(X1, X2), and(X1, active X2) -> and(X1, X2), and(mark X1, X2) -> and(X1, X2), and(active X1, X2) -> and(X1, X2), isNatural mark X -> isNatural X, isNatural active X -> isNatural X, isLNat mark X -> isLNat X, isLNat active X -> isLNat X, isPLNat mark X -> isPLNat X, isPLNat active X -> isPLNat X, tail mark X -> tail X, tail active X -> tail X, take(X1, mark X2) -> take(X1, X2), take(X1, active X2) -> take(X1, X2), take(mark X1, X2) -> take(X1, X2), take(active X1, X2) -> take(X1, X2), sel(X1, mark X2) -> sel(X1, X2), sel(X1, active X2) -> sel(X1, X2), sel(mark X1, X2) -> sel(X1, X2), sel(active X1, X2) -> sel(X1, X2)} Open