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: w -> r_3. p_3 or ~r_3. ~p_3. p_3 -> w.
p_3 -> r_3 can be inferred via the transitivity rule. ~r_3 can be inferred via the disjunctive syllogism rule. r_3 -> p_3 can be inferred via the rewriting rule.