What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall z_4: Q_4(z_4) <-> P(z_4). forall z_4: Q_4(z_4) or ~P(z_4).
forall z_4: P(z_4) -> Q_4(z_4). forall z_4: Q_4(z_4) -> P(z_4). forall z_4: P(z_4) -> Q_4(z_4).