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_1 or q_3. w -> q_6. q_3 <-> q_6. ~p_1 or w.
q_3 or w can be inferred via the resolution rule. q_3 -> q_6 can be inferred via the biconditional elimination rule. q_6 -> q_3 can be inferred via the biconditional elimination rule.