YES Trs: { .(e(), x) -> x, .(/(y, x), x) -> y, .(x, e()) -> x, .(x, \(x, y)) -> y, /(.(y, x), x) -> y, /(x, e()) -> x, /(x, \(y, x)) -> y, /(x, x) -> e(), \(e(), x) -> x, \(/(x, y), x) -> y, \(x, .(x, y)) -> y, \(x, x) -> e()} Comment: We consider a non-duplicating trs. BOUND: Automaton: { e_1() -> q4, e_0() -> q4, ._0(q4, q4) -> q4, /_0(q4, q4) -> q4, \_0(q4, q4) -> q4} Strict: {} Qed