Consider the following premises. forall x: T_3(x). ~q_24. p_1 <-> q_24. p_1 <-> t. Can we infer ~t from them?
 From p_1 <-> q_24, ~q_24 we can infer ~p_1. Finally, from p_1 <-> t, ~p_1 we can infer ~t. Therefore, the answer is yes.