What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? S_12(a_12) -> R_12(a_12). ~R_12(a_12). forall x_12: R_12(x_12) -> S_12(x_12). p_2 -> S_12(a_12).
Nothing can be inferred from these premises.