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: forall x_16: S_1(x_16) -> P(x_16). forall x_16: P(x_16) -> P_2(x_16). forall x_16: U_3(x_16) -> P(x_16). exists x_16: S_1(x_16) or U_3(x_16). forall x_16: ~P_2(x_16).
Since the premises are contradictory, we can infer anything from them.