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_15 or q_15. forall x_2: Q(x_2) <-> W(x_2). ~p_15. ~Q(g).
q_15 can be inferred via the disjunctive syllogism rule. ~p_15 and ~Q(g) can be inferred via the conjunction rule. ~Q(g) and ~p_15 can be inferred via the conjunction rule. forall x_2: Q(x_2) -> W(x_2) can be inferred via the universal biconditional elimination rule. forall x_2: W(x_2) -> Q(x_2) can be inferred via the universal biconditional elimination rule.