YES TRS: app(app(app(compose(),f),g),x) -> app(f,app(g,x)) max/plus interpretations on N: app_A(x1,x2) = max{0, x1, x2} app#_A(x1,x2) = max{0, x1, x2} compose_A = 0 compose#_A = 0 precedence: app = compose