Consider the following premises. For all x_8, if x_8 works, then x_8 is a cashier. For all x_8, if x_8 were a cashier, then x_8 is sleeping. For all x_8, x_8 will play a game or x_8 will work. For all x_8, x_8 will drive a car. For all x_8, if x_8 plays a game, then x_8 is a cashier. Can we infer the following from them? For all x_8, x_8 will drive a car and x_8 will sleep.
 From the fact that for all x_8, if x_8 plays a game, then x_8 is a cashier, that for all x_8, if x_8 works, then x_8 is a cashier, and that for all x_8, x_8 will play a game or x_8 will work we can infer that for all x_8, x_8 is a cashier. From the fact that for all x_8, if x_8 were a cashier, then x_8 is sleeping, and that for all x_8, x_8 is a cashier we can infer that for all x_8, x_8 will sleep. Finally, from the fact that for all x_8, x_8 will drive a car, and that for all x_8, x_8 will sleep we can infer that for all x_8, x_8 will drive a car and x_8 will sleep. Therefore, the answer is yes.