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 y_4: R(y_4) -> P(y_4). forall y_4: Q_3(y_4) -> W(y_4). forall y_4: R(y_4). forall y_4: Q_3(y_4).
forall y_4: P(y_4) can be inferred via the universal modus ponens rule. forall y_4: W(y_4) can be inferred via the universal modus ponens rule. forall y_4: R(y_4) and Q_3(y_4) can be inferred via the universal conjunction rule. forall y_4: Q_3(y_4) and R(y_4) can be inferred via the universal conjunction rule.