What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_7: R_7(x_7) <-> S_7(x_7). S_7(g) -> r. r <-> w. ~w.
r -> w. w -> r. ~r. forall x_7: R_7(x_7) -> S_7(x_7). forall x_7: S_7(x_7) -> R_7(x_7).