MAYBE MAYBE TRS: { a(1(), x) -> c(b(x)), a(0(), x) -> c(c(x)), b(c(b(c(x)))) -> a(0(), a(1(), x)), c(c(c(b(x)))) -> a(1(), b(c(x))) } DUP: We consider a non-duplicating system. Trs: { a(1(), x) -> c(b(x)), a(0(), x) -> c(c(x)), b(c(b(c(x)))) -> a(0(), a(1(), x)), c(c(c(b(x)))) -> a(1(), b(c(x))) } Fail