YES TRS: f(x,y) -> g(x,y) g(h(x),y) -> h(f(x,y)) g(h(x),y) -> h(g(x,y)) max/plus interpretations on N: f_A(x1,x2) = max{1, 2 + x1, -5} f#_A(x1,x2) = max{0, 6 + x1, 1} g_A(x1,x2) = max{2, 2 + x1, -1} g#_A(x1,x2) = max{2, 3 + x1, 1} h_A(x1) = max{0, 4 + x1} h#_A(x1) = max{0, 7} precedence: g > f = h