What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? exists x_14: ~P_14(x_14). forall x_14: T(x_14) -> P_2(x_14). forall x_14: P_14(x_14) <-> Q_14(x_14). forall x_14: P_2(x_14) -> Q_14(x_14).
forall x_14: T(x_14) -> Q_14(x_14). forall x_14: P_14(x_14) -> Q_14(x_14). forall x_14: Q_14(x_14) -> P_14(x_14). exists x_14: ~Q_14(x_14).