What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? exists x_9: Q_2(x_9) -> R_2(x_9). forall x_9: W_3(x_9) <-> T(x_9). forall x_9: W_3(x_9) -> Q_2(x_9).
exists x_9: W_3(x_9) -> R_2(x_9). forall x_9: W_3(x_9) -> T(x_9). forall x_9: T(x_9) -> W_3(x_9).