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