What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall z: T(z) <-> W_1(z). forall z: T(z). forall z: S(z).
forall z: T(z) and S(z). forall z: S(z) and T(z). forall z: T(z) -> W_1(z). forall z: W_1(z) -> T(z).