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: q_2 -> p_5. p_5 <-> q_2. ~p_5.
~q_2 can be inferred via the modus tollens rule. p_5 -> q_2 can be inferred via the biconditional elimination rule. q_2 -> p_5 can be inferred via the biconditional elimination rule. ~q_2 can be inferred via the biconditional elimination rule.