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: u -> W(a_10). forall x_11: W(x_11) -> Q_11(x_11). forall x_11: Q_11(x_11) -> R_11(x_11). R_11(a_10) -> u.
R_11(a_10) -> W(a_10) can be inferred via the transitivity rule. forall x_11: W(x_11) -> R_11(x_11) can be inferred via the universal transitivity rule.