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_17: P_13(x_17) and Q_13(x_17). forall x_17: P(x_17) and Q_17(x_17). exists x_17: P(x_17) -> ~P_13(x_17).
Since the premises are contradictory, we can infer anything from them.