YES O(n) TRS: { p(m, n, s(r)) -> p(m, r, n), p(m, s(n), 0()) -> p(0(), n, m), p(m, 0(), 0()) -> m } DUP: We consider a non-duplicating system. Trs: { p(m, n, s(r)) -> p(m, r, n), p(m, s(n), 0()) -> p(0(), n, m), p(m, 0(), 0()) -> m } BOUND: Automaton: { 0_1() -> 3, 0_0() -> 3, s_0(4) -> 4, s_0(3) -> 4, p_1(3, 3, 3) -> 3, p_0(4, 4, 4) -> 3, p_0(4, 4, 3) -> 3, p_0(4, 3, 4) -> 3, p_0(4, 3, 3) -> 3, p_0(3, 4, 4) -> 3, p_0(3, 4, 3) -> 3, p_0(3, 3, 4) -> 3, p_0(3, 3, 3) -> 3, 4 -> 3 } Strict: {} Qed