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