Consider the following premises. exists x_7: T(x_7) or W(x_7). forall x_7: T(x_7) -> ~P_7(x_7). forall x_7: P_7(x_7) and Q_7(x_7). Can we infer forall x_7: P_7(x_7) and Q_7(x_7) from them? If possible, name the inference rules being used at each step.
That is one of the premises. Therefore, the answer is yes.