MAYBE MAYBE TRS: { f(X, n__g(X), Y) -> f(activate(Y), activate(Y), activate(Y)), activate(X) -> X, activate(n__g(X)) -> g(X), g(X) -> n__g(X), g(b()) -> c(), b() -> c() } DUP: We consider a duplicating system. Trs: { f(X, n__g(X), Y) -> f(activate(Y), activate(Y), activate(Y)), activate(X) -> X, activate(n__g(X)) -> g(X), g(X) -> n__g(X), g(b()) -> c(), b() -> c() } Fail