What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall z_2: P_2(z_2) or ~T(z_2). forall z_2: T(z_2) -> P_2(z_2). forall z_2: P_2(z_2) -> T(z_2).
forall z_2: T(z_2) -> P_2(z_2). forall z_2: T(z_2) <-> P_2(z_2). forall z_2: P_2(z_2) <-> T(z_2).