TRS:
 {        minus(x, y) -> cond(gt(x, y), x, y),
  cond(false(), x, y) -> 0(),
   cond(true(), x, y) -> s(minus(x, s(y))),
           gt(0(), v) -> false(),
        gt(s(u), 0()) -> true(),
       gt(s(u), s(v)) -> gt(u, v)}
 Fail