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