YES TRS: 2nd(cons1(X,cons(Y,Z))) -> Y 2nd(cons(X,X1)) -> 2nd(cons1(X,activate(X1))) from(X) -> cons(X,n__from(s(X))) from(X) -> n__from(X) activate(n__from(X)) -> from(X) activate(X) -> X max/plus interpretations on N: 2nd_A(x1) = max{17, 16 + x1} 2nd#_A(x1) = max{1, 3 + x1} cons1_A(x1,x2) = max{1, -7 + x1, -12 + x2} cons1#_A(x1,x2) = max{3, -4, -11 + x2} cons_A(x1,x2) = max{4, -4 + x1, -1 + x2} cons#_A(x1,x2) = max{0, 0, -3 + x2} activate_A(x1) = max{9, 5 + x1} activate#_A(x1) = max{7, 2 + x1} from_A(x1) = max{4, 3 + x1} from#_A(x1) = max{7, 1 + x1} n__from_A(x1) = max{1, -1 + x1} n__from#_A(x1) = max{2, 1 + x1} s_A(x1) = max{6, x1} s#_A(x1) = max{0, 0} precedence: cons > 2nd > cons1 = activate > from > n__from = s