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