YES TRS: +(0(),y) -> y +(s(x),y) -> s(+(x,y)) +(p(x),y) -> p(+(x,y)) minus(0()) -> 0() minus(s(x)) -> p(minus(x)) minus(p(x)) -> s(minus(x)) *(0(),y) -> 0() *(s(x),y) -> +(*(x,y),y) *(p(x),y) -> +(*(x,y),minus(y)) linear polynomial interpretations on N: +_A(x1,x2) = x2 + 1 +#_A(x1,x2) = 3 0_A = 1 0#_A = 3 s_A(x1) = 1 s#_A(x1) = 1 p_A(x1) = 1 p#_A(x1) = 0 minus_A(x1) = x1 minus#_A(x1) = 2 *_A(x1,x2) = x1 + x2 + 1 *#_A(x1,x2) = 4 precedence: * > + > s > minus > 0 = p