What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Name the inference rule being used: forall x_8: ~P_8(x_8) or R_8(x_8). ~R_8(a_6). forall x_8: P_8(x_8) or Q_8(x_8). ~Q_8(a_6) or w_3.
forall x_8: Q_8(x_8) or R_8(x_8) can be inferred via the universal resolution rule.