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_5: U(x_5) or W(x_5). forall x_5: W(x_5) -> W_3(x_5). forall x_5: U(x_5) -> W_3(x_5).
forall x_5: W_3(x_5) can be inferred via the universal disjunction elimination rule.