YES TRS: f(s(X),Y) -> h(s(f(h(Y),X))) linear polynomial interpretations on N: f_A(x1,x2) = x1 + x2 f#_A(x1,x2) = x1 + x2 s_A(x1) = x1 + 1 s#_A(x1) = x1 + 1 h_A(x1) = x1 h#_A(x1) = x1 precedence: f > s = h