What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? exists x_11: Q_4(x_11). forall x_11: T(x_11) <-> Q_2(x_11). forall x_11: Q_2(x_11) -> ~Q_4(x_11).
exists x_11: ~Q_2(x_11). forall x_11: T(x_11) -> Q_2(x_11). forall x_11: Q_2(x_11) -> T(x_11).