Consider the following premises. forall x_11: P_11(x_11) -> ~Q_11(x_11). q_1 -> P_9(b_4). forall x_11: P_9(x_11) <-> P_11(x_11). forall x_11: Q_11(x_11). Can we infer forall x_11: Q_11(x_11) from them?
That is one of the premises. Therefore, the answer is yes.