What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? P_14(a_12) -> R_4(a_12). forall x_14: P_14(x_14) or ~R_4(x_14). ~P_14(a_12).
forall x_14: R_4(x_14) -> P_14(x_14).