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: w -> S(b_1). ~R(b_1). forall y_4: S(y_4) -> R(y_4). R(b_1) -> w.
R(b_1) -> S(b_1) can be inferred via the transitivity rule.