Consider the following premises. w_4 -> R_17(a_17). forall x_17: R_17(x_17) -> S_17(x_17). w_4 or ~S_17(a_17). Can we infer R_17(a_17) -> w_4 from them? If possible, name the inference rules being used at each step.
 From forall x_17: R_17(x_17) -> S_17(x_17) we can infer R_17(a_17) -> S_17(a_17) via universal instantiation. From w_4 or ~S_17(a_17) we can infer S_17(a_17) -> w_4 via rewriting. Finally, from R_17(a_17) -> S_17(a_17), S_17(a_17) -> w_4 we can infer R_17(a_17) -> w_4 via transitivity. Therefore, the answer is yes.