YES O(n) TRS: { f(0()) -> cons(0()), f(s(0())) -> f(p(s(0()))), p(s(0())) -> 0()} DUP: We consider a non-duplicating system. Trs: { f(0()) -> cons(0()), f(s(0())) -> f(p(s(0()))), p(s(0())) -> 0()} BOUND: Automaton: { s_1(12) -> 13, s_0(5) -> 5, p_1(13) -> 14, p_0(5) -> 5, f_1(14) -> 15, f_0(5) -> 5, 0_2() -> 20, 0_1() -> 6, 0_0() -> 5, cons_2(22) -> 23, cons_1(8) -> 9, cons_0(5) -> 5, 23 -> 15, 20 -> 22 | 14, 15 -> 5, 9 -> 5, 6 -> 12 | 8 | 5 } Strict: {} Qed