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: s_1. ~p_13. s -> ~q_13. p_13 or q_13.
q_13 can be inferred via the disjunctive syllogism rule. s_1 and ~p_13 can be inferred via the conjunction rule. ~p_13 and s_1 can be inferred via the conjunction rule.