YES TRS: f(g(x)) -> g(g(f(x))) f(g(x)) -> g(g(g(x))) linear polynomial interpretations on N: f_A(x1) = x1 + 1 f#_A(x1) = x1 + 1 g_A(x1) = x1 g#_A(x1) = x1 precedence: f > g