What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_3: ~R_3(x_3). exists x_3: Q(x_3) -> Q_3(x_3). forall x_3: Q_3(x_3) -> R_3(x_3). forall x_3: R_3(x_3) -> Q(x_3).
forall x_3: ~Q_3(x_3). forall x_3: Q_3(x_3) -> Q(x_3). exists x_3: Q(x_3) -> R_3(x_3). exists x_3: R_3(x_3) -> Q_3(x_3).