What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_18: S_3(x_18) -> P_2(x_18). forall x_18: P_18(x_18). exists x_18: P_14(x_18) <-> P_18(x_18). forall x_18: ~P_14(x_18).
Since the premises are contradictory, we can infer anything from them.