(STRATEGY INNERMOST) (VAR X Y Z) (DATATYPES A = µX.< cons(X, X), n__from(X), s(X), 0 >) (SIGNATURES from :: [A] -> A sel :: [A x A] -> A activate :: [A] -> A) (RULES from(X) -> cons(X,n__from(s(X))) sel(0(),cons(X,Y)) -> X sel(s(X),cons(Y,Z)) -> sel(X ,activate(Z)) from(X) -> n__from(X) activate(n__from(X)) -> from(X) activate(X) -> X)