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: ~p_11. s_3. p_11 or ~p_4.
~p_4 can be inferred via the disjunctive syllogism rule. ~p_11 and s_3 can be inferred via the conjunction rule. s_3 and ~p_11 can be inferred via the conjunction rule. p_4 -> p_11 can be inferred via the rewriting rule.