Consider the following premises. forall z: Q_3(z) -> P(z). P_1(i). forall z: Q_3(z) or Q(z). forall z: Q(z) -> P(z). Can we infer forall z: Q_3(z) -> P(z) from them? If possible, name the inference rules being used at each step.
That is one of the premises. Therefore, the answer is yes.