(GOAL COMPLEXITY)
(STARTTERM CONSTRUCTOR-BASED)
(STRATEGY INNERMOST)
(STRATEGY
    INNERMOST)

(VAR
    x y)
(DATATYPES
    A = µX.< s(X) >)
(SIGNATURES
    f :: [A x A] -> A)
(RULES
    f(x,y) -> f(x,x)
    f(s(x),y) -> f(y,x))