MAYBE MAYBE TRS: { bin(x, 0()) -> s(0()), bin(s(x), s(y)) -> +(bin(x, s(y)), bin(x, y)), bin(0(), s(y)) -> 0() } DUP: We consider a duplicating system. Trs: { bin(x, 0()) -> s(0()), bin(s(x), s(y)) -> +(bin(x, s(y)), bin(x, y)), bin(0(), s(y)) -> 0() } Fail