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{8, 17 + x1} f#_A(x1) = max{7, -5 + x1} 0_A = 14 0#_A = 8 s_A(x1) = max{15, -2} s#_A(x1) = max{0, 1} *_A(x1,x2) = max{32, 17 + x1, -26 + x2} *#_A(x1,x2) = max{6, -11 + x1, -49 + x2} +_A(x1,x2) = max{7, 27 + x1, -26 + x2} +#_A(x1,x2) = max{14, 5, -4 + x2} precedence: f > + > 0 > s > *