What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_7: ~Q_7(x_7) or R_5(x_7). forall x_7: P_7(x_7) or Q_7(x_7). ~R_7(a_3) or w. forall x_7: ~P_7(x_7) or R_7(x_7).
forall x_7: Q_7(x_7) or R_7(x_7).