YES TRS: minus(n__0(),Y) -> 0() minus(n__s(X),n__s(Y)) -> minus(activate(X),activate(Y)) geq(X,n__0()) -> true() geq(n__0(),n__s(Y)) -> false() geq(n__s(X),n__s(Y)) -> geq(activate(X),activate(Y)) div(0(),n__s(Y)) -> 0() div(s(X),n__s(Y)) -> if(geq(X,activate(Y)),n__s(div(minus(X,activate(Y)),n__s(activate(Y)))),n__0()) if(true(),X,Y) -> activate(X) if(false(),X,Y) -> activate(Y) 0() -> n__0() s(X) -> n__s(X) activate(n__0()) -> 0() activate(n__s(X)) -> s(X) activate(X) -> X linear polynomial interpretations on N: minus_A(x1,x2) = 0 minus#_A(x1,x2) = x1 + x2 + 3 n__0_A = 0 n__0#_A = 1 0_A = 0 0#_A = 2 n__s_A(x1) = x1 + 1 n__s#_A(x1) = 3 activate_A(x1) = x1 activate#_A(x1) = x1 + 4 geq_A(x1,x2) = x1 + 1 geq#_A(x1,x2) = x1 + x2 + 3 true_A = 1 true#_A = 0 false_A = 1 false#_A = 0 div_A(x1,x2) = x1 + 1 div#_A(x1,x2) = x1 + x2 + 6 s_A(x1) = x1 + 1 s#_A(x1) = x1 + 4 if_A(x1,x2,x3) = x2 + x3 if#_A(x1,x2,x3) = x2 + x3 + 5 precedence: minus > div > geq = if > activate > s > n__s > 0 > n__0 > true = false