WORST_CASE(?,O(n^1)) Solution: --------- "!EQ" :: ["A"(0) x "A"(0)] -(0)-> "A"(0) "0" :: [] -(0)-> "A"(0) "Cons" :: ["A"(0) x "A"(6)] -(6)-> "A"(6) "Cons" :: ["A"(0) x "A"(0)] -(0)-> "A"(0) "False" :: [] -(0)-> "A"(0) "False" :: [] -(0)-> "A"(14) "False" :: [] -(0)-> "A"(6) "Nil" :: [] -(0)-> "A"(6) "Nil" :: [] -(0)-> "A"(0) "S" :: ["A"(0)] -(0)-> "A"(0) "True" :: [] -(0)-> "A"(0) "True" :: [] -(0)-> "A"(14) "True" :: [] -(0)-> "A"(8) "goal" :: ["A"(15) x "A"(14)] -(14)-> "A"(0) "member" :: ["A"(1) x "A"(6)] -(12)-> "A"(14) "member[Ite][True][Ite]" :: ["A"(0) x "A"(1) x "A"(6)] -(6)-> "A"(14) "notEmpty" :: ["A"(0)] -(15)-> "A"(0) Cost Free Signatures: --------------------- "!EQ" :: ["A"_cf(0) x "A"_cf(0)] -(0)-> "A"_cf(0) "0" :: [] -(0)-> "A"_cf(0) "Cons" :: ["A"_cf(0) x "A"_cf(0)] -(0)-> "A"_cf(0) "False" :: [] -(0)-> "A"_cf(0) "Nil" :: [] -(0)-> "A"_cf(0) "S" :: ["A"_cf(0)] -(0)-> "A"_cf(0) "True" :: [] -(0)-> "A"_cf(0) "member" :: ["A"_cf(0) x "A"_cf(0)] -(0)-> "A"_cf(0) "member[Ite][True][Ite]" :: ["A"_cf(0) x "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)] -(0)-> "A"(1) "\"True\"_A" :: [] -(0)-> "A"(1)