What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? exists x_12: T(x_12) <-> Q_12(x_12). forall x_12: ~Q_12(x_12). forall x_12: S(x_12) <-> T(x_12).
forall x_12: S(x_12) -> T(x_12). exists x_12: T(x_12) -> Q_12(x_12). forall x_12: T(x_12) -> S(x_12). exists x_12: Q_12(x_12) -> T(x_12). exists x_12: ~T(x_12).