What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall z_3: R(z_3) -> T_2(z_3). exists z_3: T_2(z_3) -> W(z_3). forall z_3: T_2(z_3) -> R(z_3). forall z_3: ~W(z_3).
exists z_3: ~T_2(z_3). exists z_3: R(z_3) -> W(z_3). forall z_3: R(z_3) <-> T_2(z_3). forall z_3: T_2(z_3) <-> R(z_3).