What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? exists x_16: P_10(x_16). forall x_16: P_10(x_16) -> W_1(x_16). forall x_16: Q_10(x_16) -> W_1(x_16). forall x_16: W(x_16) <-> W_1(x_16).
exists x_16: W_1(x_16). forall x_16: W(x_16) -> W_1(x_16). forall x_16: W_1(x_16) -> W(x_16).