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: forall z: P_3(z) -> ~W(z). forall z: W(z). forall z: Q(z) <-> P_3(z). forall z: P_3(z) -> Q(z).
forall z: ~P_3(z) can be inferred via the universal modus tollens rule. forall z: Q(z) -> P_3(z) can be inferred via the universal biconditional elimination rule. forall z: P_3(z) -> Q(z) can be inferred via the universal biconditional elimination rule.