What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? exists x_17: ~P_14(x_17). forall x_17: U(x_17) <-> Q(x_17). forall x_17: Q(x_17) -> W_1(x_17). forall x_17: W_1(x_17) -> Q(x_17). forall x_17: P_14(x_17) <-> W_1(x_17).
forall x_17: Q(x_17) <-> W_1(x_17). forall x_17: W_1(x_17) <-> Q(x_17). forall x_17: U(x_17) -> Q(x_17). forall x_17: P_14(x_17) -> W_1(x_17). forall x_17: Q(x_17) -> U(x_17). forall x_17: W_1(x_17) -> P_14(x_17). exists x_17: ~W_1(x_17).