Consider the following premises. s_3 -> r_1. R_10(a_10) or s_3. forall x_10: R_10(x_10) -> S_10(x_10). S_10(a_10) -> r_1. Can we infer r_1 from them? If possible, name the inference rules being used at each step.
 From forall x_10: R_10(x_10) -> S_10(x_10) we can infer R_10(a_10) -> S_10(a_10) via universal instantiation. From R_10(a_10) -> S_10(a_10), S_10(a_10) -> r_1 we can infer R_10(a_10) -> r_1 via transitivity. Finally, from R_10(a_10) -> r_1, s_3 -> r_1, R_10(a_10) or s_3 we can infer r_1 via disjunction elimination. Therefore, the answer is yes.