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_10: W_2(x_10). exists x_10: Q(x_10) -> R(x_10). forall x_10: R(x_10) <-> Q_10(x_10). forall x_10: W_2(x_10) -> Q_10(x_10).
forall x_10: Q_10(x_10) can be inferred via the universal modus ponens rule. forall x_10: R(x_10) -> Q_10(x_10) can be inferred via the universal biconditional elimination rule. forall x_10: Q_10(x_10) -> R(x_10) can be inferred via the universal biconditional elimination rule.