MAYBE MAYBE TRS: { not(false()) -> true(), not(true()) -> false(), evenodd(x, 0()) -> not(evenodd(x, s(0()))), evenodd(s(x), s(0())) -> evenodd(x, 0()), evenodd(0(), s(0())) -> false() } DUP: We consider a non-duplicating system. Trs: { not(false()) -> true(), not(true()) -> false(), evenodd(x, 0()) -> not(evenodd(x, s(0()))), evenodd(s(x), s(0())) -> evenodd(x, 0()), evenodd(0(), s(0())) -> false() } Fail