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_3 -> ~q_3. s. q_3.
~p_3 can be inferred via the modus tollens rule. s and q_3 can be inferred via the conjunction rule. q_3 and s can be inferred via the conjunction rule.