WORST_CASE(?,O(n^1)) Solution: --------- "Cons" :: ["A"(0) x "A"(3)] -(3)-> "A"(3) "Cons" :: ["A"(0) x "A"(4)] -(4)-> "A"(4) "Cons" :: ["A"(0) x "A"(2)] -(2)-> "A"(2) "False" :: [] -(0)-> "A"(0) "False" :: [] -(0)-> "A"(14) "False" :: [] -(0)-> "A"(10) "Nil" :: [] -(0)-> "A"(4) "Nil" :: [] -(0)-> "A"(2) "Nil" :: [] -(0)-> "A"(3) "True" :: [] -(0)-> "A"(0) "True" :: [] -(0)-> "A"(10) "True" :: [] -(0)-> "A"(14) "and" :: ["A"(0) x "A"(0)] -(0)-> "A"(0) "even" :: ["A"(2)] -(1)-> "A"(0) "goal" :: ["A"(14) x "A"(14)] -(16)-> "A"(0) "lte" :: ["A"(3) x "A"(4)] -(7)-> "A"(0) "notEmpty" :: ["A"(4)] -(1)-> "A"(0) Cost Free Signatures: --------------------- "Cons" :: ["A"_cf(0) x "A"_cf(0)] -(0)-> "A"_cf(0) "False" :: [] -(0)-> "A"_cf(0) "Nil" :: [] -(0)-> "A"_cf(0) "True" :: [] -(0)-> "A"_cf(0) "even" :: ["A"_cf(0)] -(0)-> "A"_cf(0) "lte" :: ["A"_cf(0) x "A"_cf(0)] -(0)-> "A"_cf(0) Base Constructors: ------------------ "\"Cons\"_A" :: ["A"(0) x "A"(1)] -(1)-> "A"(1) "\"False\"_A" :: [] -(0)-> "A"(1) "\"Nil\"_A" :: [] -(0)-> "A"(1) "\"True\"_A" :: [] -(0)-> "A"(1)