(STRATEGY INNERMOST) (VAR X X1 Y Z) (DATATYPES A = µX.< cons1(X, X), cons(X, X), s(X) >) (SIGNATURES 2nd :: [A] -> A from :: [A] -> A) (RULES 2nd(cons1(X,cons(Y,Z))) -> Y 2nd(cons(X,X1)) -> 2nd(cons1(X ,X1)) from(X) -> cons(X,from(s(X))))