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) -> P_4(z_4). forall z_4: P_4(z_4) -> T_1(z_4). forall z_4: ~T_1(z_4).
forall z_4: ~P_4(z_4). exists z_4: T(z_4) -> T_1(z_4).