WORST_CASE(?,O(n^1)) Solution: --------- 0 :: [] -(0)-> A(2) 0 :: [] -(0)-> A(0) = :: [A(0) x A(0)] -(0)-> A(0) and :: [A(0) x A(0)] -(0)-> A(0) divp :: [A(0) x A(0)] -(1)-> A(0) false :: [] -(0)-> A(0) not :: [A(0)] -(0)-> A(0) prime :: [A(2)] -(1)-> A(0) prime1 :: [A(0) x A(2)] -(1)-> A(0) rem :: [A(0) x A(0)] -(0)-> A(0) s :: [A(2)] -(2)-> A(2) s :: [A(0)] -(0)-> A(0) true :: [] -(0)-> A(0) Cost Free Signatures: --------------------- 0 :: [] -(0)-> A_cf(0) = :: [A_cf(0) x A_cf(0)] -(0)-> A_cf(0) and :: [A_cf(0) x A_cf(0)] -(0)-> A_cf(0) divp :: [A_cf(0) x A_cf(0)] -(0)-> A_cf(0) false :: [] -(0)-> A_cf(0) not :: [A_cf(0)] -(0)-> A_cf(0) prime1 :: [A_cf(0) x A_cf(0)] -(0)-> A_cf(0) rem :: [A_cf(0) x A_cf(0)] -(0)-> A_cf(0) s :: [A_cf(0)] -(0)-> A_cf(0) true :: [] -(0)-> A_cf(0)