Consider the following premises. ~t_4. forall x_7: R_7(x_7) <-> S_7(x_7). S_7(a_7) -> p_11. p_11 <-> t_4. Can we infer p_11 <-> t_4 from them? If possible, name the inference rules being used at each step.
That is one of the premises. Therefore, the answer is yes.