YES TRS: minus(minus(x)) -> x minus(+(x,y)) -> *(minus(minus(minus(x))),minus(minus(minus(y)))) minus(*(x,y)) -> +(minus(minus(minus(x))),minus(minus(minus(y)))) f(minus(x)) -> minus(minus(minus(f(x)))) linear polynomial interpretations on N: minus_A(x1) = x1 minus#_A(x1) = x1 +_A(x1,x2) = x1 + x2 + 3 +#_A(x1,x2) = 2 *_A(x1,x2) = x1 + x2 + 3 *#_A(x1,x2) = 1 f_A(x1) = 1 f#_A(x1) = 2 precedence: f > minus > * > +