Consider the following premises. ~p_4. forall x_12: Q(x_12) <-> S_12(x_12). S_12(e) <-> p_4. Can we infer forall x_12: Q(x_12) <-> S_12(x_12) from them? If possible, name the inference rules being used at each step.
That is one of the premises. Therefore, the answer is yes.