Consider the following premises. p_10. R_25(a_25). forall x_25: R_25(x_25) -> S_25(x_25). Can we infer p_10 or u_1 from them? If possible, name the inference rules being used at each step.
 From forall x_25: R_25(x_25) -> S_25(x_25) we can infer R_25(a_25) -> S_25(a_25) via universal instantiation. From R_25(a_25) -> S_25(a_25), R_25(a_25) we can infer S_25(a_25) via modus ponens. From p_10, S_25(a_25) we can infer p_10 and S_25(a_25) via conjunction. From p_10 and S_25(a_25) we can infer p_10 via simplification. Finally, from p_10 we can infer p_10 or u_1 via addition. Therefore, the answer is yes.