(STRATEGY
    INNERMOST)

(VAR
    X)
(DATATYPES
    A = µX.< 0, cons(X, X), n__f(X), s(X) >)
(SIGNATURES
    f :: [A] -> A
    p :: [A] -> A
    activate :: [A] -> A)
(RULES
    f(0()) -> cons(0(),n__f(s(0())))
    f(s(0())) -> f(p(s(0())))
    p(s(X)) -> X
    f(X) -> n__f(X)
    activate(n__f(X)) -> f(X)
    activate(X) -> X)