What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? exists z_4: T(z_4) -> W(z_4). forall z_4: T_1(z_4) -> T(z_4). forall z_4: T_1(z_4) <-> S_1(z_4).
exists z_4: T_1(z_4) -> W(z_4). forall z_4: T_1(z_4) -> S_1(z_4). forall z_4: S_1(z_4) -> T_1(z_4).