YES TRS: f(0()) -> s(0()) f(s(0())) -> s(s(0())) f(s(0())) -> *(s(s(0())),f(0())) f(+(x,s(0()))) -> +(s(s(0())),f(x)) f(+(x,y)) -> *(f(x),f(y)) max/plus interpretations on N: f_A(x1) = max{0, x1} f#_A(x1) = max{0, x1} 0_A = 0 0#_A = 0 s_A(x1) = max{0, x1} s#_A(x1) = max{0, x1} *_A(x1,x2) = max{0, x1, x2} *#_A(x1,x2) = max{0, x1, x2} +_A(x1,x2) = max{0, x1, x2} +#_A(x1,x2) = max{0, x1, x2} precedence: 0 > f = + > s = *