What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Name the inference rule being used: q. ~p_13. q_3 -> p_2. p_13 or q_3.
q_3 can be inferred via the disjunctive syllogism rule. q and ~p_13 can be inferred via the conjunction rule. ~p_13 and q can be inferred via the conjunction rule.