Consider the following premises. For all x_3, if x_3 were a soldier, then x_3 is sleeping. For all x_3, if x_3 sleeps, then x_3 is a soldier. Can we infer the following from them? If we can, name the inference rule being used: For all x_3, if x_3 were a soldier, then x_3 is sleeping.
That is one of the premises. Therefore, the answer is yes.