What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall z: T_3(z). forall z: S_3(z) <-> W_4(z). exists z: S_3(z) -> ~T_3(z).
exists z: ~S_3(z). forall z: S_3(z) -> W_4(z). forall z: W_4(z) -> S_3(z).