(STRATEGY
    INNERMOST)

(VAR
    x y)
(DATATYPES
    A = µX.< true, 0, false, s(X) >)
(SIGNATURES
    cond :: [A x A x A] -> A
    and :: [A x A] -> A
    gr :: [A x A] -> A
    p :: [A] -> A)
(RULES
    cond(true(),x,y) ->
      cond(and(gr(x,0()),gr(y,0()))
          ,p(x)
          ,p(y))
    and(true(),true()) -> true()
    and(x,false()) -> false()
    and(false(),x) -> false()
    gr(0(),0()) -> false()
    gr(0(),x) -> false()
    gr(s(x),0()) -> true()
    gr(s(x),s(y)) -> gr(x,y)
    p(0()) -> 0()
    p(s(x)) -> x)