Consider the following premises. p_9 <-> q_9. p_9 or ~q_9. ~q_9. Can we infer ~p_9 from them?
 From p_9 or ~q_9 we can infer q_9 -> p_9. From p_9 <-> q_9 we can infer p_9 -> q_9. From p_9 -> q_9, q_9 -> p_9 we can infer p_9 <-> q_9. Finally, from p_9 <-> q_9, ~q_9 we can infer ~p_9. Therefore, the answer is yes.