Consider the following premises. exists x_16: Q_11(x_16) -> P_16(x_16). forall x_16: P_16(x_16) or ~Q_16(x_16). forall x_16: P_11(x_16) -> Q_11(x_16). forall x_16: P_11(x_16) or Q_16(x_16). Can we infer forall x_16: ~(P_16(x_16) or Q(x_16)) from them? If possible, name the inference rules being used at each step.
That contradicts the premises. Therefore the answer is no.