What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_17: ~P_17(x_17). t_4 -> Q_17(e). forall x_17: P_17(x_17) <-> Q_17(x_17). ~t_4 -> w_2.
forall x_17: P_17(x_17) -> Q_17(x_17). forall x_17: Q_17(x_17) -> P_17(x_17). forall x_17: ~Q_17(x_17).