What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? R_2(j) <-> w. forall x_7: R_2(x_7) <-> S_7(x_7). ~w.
R_2(j) -> w. w -> R_2(j). ~R_2(j). forall x_7: R_2(x_7) -> S_7(x_7). forall x_7: S_7(x_7) -> R_2(x_7).