What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_17: R_17(x_17) -> S_17(x_17). R_17(a_17) <-> q_11. S_17(a_17) -> q_11.
R_17(a_17) -> q_11. q_11 -> R_17(a_17).