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). q <-> q_11. ~q_11. S_7(a_7) -> q.
q -> q_11. q_11 -> q. ~q. forall x_7: R_7(x_7) -> S_7(x_7). forall x_7: S_7(x_7) -> R_7(x_7).