What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Name the inference rule being used: ~S_14(a_14). u. forall x_14: P(x_14) -> S_14(x_14).
~S_14(a_14) and u can be inferred via the conjunction rule. u and ~S_14(a_14) can be inferred via the conjunction rule.