Consider the following premises. forall x_7: P_6(x_7) or T(x_7). forall x_7: ~P_6(x_7) or T_4(x_7). forall x_7: ~Q_7(x_7). forall x_7: T(x_7) -> Q_7(x_7). Can we infer ~U(f) from them?
We cannot infer that from the premises. Therefore the answer is no.