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