What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall z_4: U_2(z_4) -> Q_2(z_4). forall z_4: T_2(z_4) <-> Q_2(z_4). forall z_4: T_2(z_4) or U_2(z_4). forall z_4: Q_2(z_4) -> P_1(z_4).
forall z_4: U_2(z_4) -> P_1(z_4). forall z_4: T_2(z_4) -> Q_2(z_4). forall z_4: Q_2(z_4) -> T_2(z_4).