YES TRS: f(g(x)) -> g(f(f(x))) f(h(x)) -> h(g(x)) f'(s(x),y,y) -> f'(y,x,s(x)) linear polynomial interpretations on N: f_A(x1) = x1 f#_A(x1) = x1 g_A(x1) = x1 + 2 g#_A(x1) = 1 h_A(x1) = 2 h#_A(x1) = 1 f'_A(x1,x2,x3) = 0 f'#_A(x1,x2,x3) = x1 + x2 s_A(x1) = x1 + 1 s#_A(x1) = 0 precedence: f > g = h = f' > s