WORST_CASE(?,O(n^1)) Solution: --------- "0" :: [] -(0)-> "A"(0) "Cons" :: ["A"(0) x "A"(8)] -(8)-> "A"(8) "Cons" :: ["A"(0) x "A"(6)] -(6)-> "A"(6) "Cons" :: ["A"(0) x "A"(7)] -(7)-> "A"(7) "Cons" :: ["A"(0) x "A"(0)] -(0)-> "A"(0) "False" :: [] -(0)-> "A"(13) "Nil" :: [] -(0)-> "A"(6) "Nil" :: [] -(0)-> "A"(8) "Nil" :: [] -(0)-> "A"(7) "Nil" :: [] -(0)-> "A"(10) "S" :: ["A"(0)] -(0)-> "A"(0) "S" :: ["A"(0)] -(4)-> "A"(4) "True" :: [] -(0)-> "A"(13) "fold" :: ["A"(10) x "A"(15)] -(16)-> "A"(0) "foldl" :: ["A"(4) x "A"(8)] -(4)-> "A"(3) "foldr" :: ["A"(1) x "A"(6)] -(6)-> "A"(0) "notEmpty" :: ["A"(7)] -(13)-> "A"(3) "op" :: ["A"(0) x "A"(0)] -(1)-> "A"(0) Cost Free Signatures: --------------------- "0" :: [] -(0)-> "A"_cf(0) "Cons" :: ["A"_cf(0) x "A"_cf(0)] -(0)-> "A"_cf(0) "Nil" :: [] -(0)-> "A"_cf(0) "S" :: ["A"_cf(0)] -(0)-> "A"_cf(0) "foldl" :: ["A"_cf(0) x "A"_cf(0)] -(0)-> "A"_cf(0) "foldr" :: ["A"_cf(0) x "A"_cf(0)] -(0)-> "A"_cf(0) "op" :: ["A"_cf(0) x "A"_cf(0)] -(0)-> "A"_cf(0) Base Constructors: ------------------ "\"0\"_A" :: [] -(0)-> "A"(1) "\"Cons\"_A" :: ["A"(0) x "A"(1)] -(1)-> "A"(1) "\"False\"_A" :: [] -(0)-> "A"(1) "\"Nil\"_A" :: [] -(0)-> "A"(1) "\"S\"_A" :: ["A"(0)] -(1)-> "A"(1) "\"True\"_A" :: [] -(0)-> "A"(1)