What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall z: S_3(z) <-> S_1(z). forall z: T(z) -> S_3(z). forall z: W(z) -> T(z).
forall z: W(z) -> S_3(z). forall z: S_3(z) -> S_1(z). forall z: S_1(z) -> S_3(z).