Consider the following premises. P_9(a_7) -> R(a_7). forall x_9: P_9(x_9) or ~R(x_9). Can we infer R(a_7) -> P_9(a_7) from them?
 From forall x_9: P_9(x_9) or ~R(x_9) we can infer forall x_9: R(x_9) -> P_9(x_9). Finally, from forall x_9: R(x_9) -> P_9(x_9) we can infer R(a_7) -> P_9(a_7). Therefore, the answer is yes.