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_22: Q_22(x_22) -> R(x_22). forall x_22: W_3(x_22) -> R(x_22). R(a_18) -> q_1. forall x_22: W_3(x_22) or Q_22(x_22).
forall x_22: R(x_22) can be inferred via the universal disjunction elimination rule.