What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_11: Q_11(x_11) -> R_11(x_11). R_11(a_10) <-> P_11(a_10). forall x_11: P_11(x_11) -> Q_11(x_11).
R_11(a_10) -> P_11(a_10). P_11(a_10) -> R_11(a_10). forall x_11: P_11(x_11) -> R_11(x_11).