What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_7: P_4(x_7) -> T_3(x_7). forall x_7: T_3(x_7) -> P_4(x_7). forall x_7: P_7(x_7) <-> T_3(x_7). forall x_7: Q_7(x_7). forall x_7: P_7(x_7) -> ~Q_7(x_7).
forall x_7: ~P_7(x_7). forall x_7: P_4(x_7) <-> T_3(x_7). forall x_7: T_3(x_7) <-> P_4(x_7). forall x_7: P_7(x_7) -> T_3(x_7). forall x_7: T_3(x_7) -> P_7(x_7).