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 -> q. w_2 <-> q. q_3 or p. ~q_3 or w_2.
p or w_2 can be inferred via the resolution rule. w_2 -> q can be inferred via the biconditional elimination rule. q -> w_2 can be inferred via the biconditional elimination rule.