Consider the following premises. For all x_10, x_10 will not drive a car or x_10 is a cashier. For all x_10, x_10 will drive a car or x_10 is a scientist. There is at least one x_10 for which x_10 will not sleep. For all x_10, if x_10 were a scientist, then x_10 is sleeping. Can we infer the following from them? For all x_10, x_10 is not a cashier.
 From the fact that for all x_10, x_10 will drive a car or x_10 is a scientist, and that for all x_10, x_10 will not drive a car or x_10 is a cashier we can infer that for all x_10, x_10 is a scientist or x_10 is a cashier. From the fact that for all x_10, if x_10 were a scientist, then x_10 is sleeping, and that there is at least one x_10 for which x_10 will not sleep we can infer that there is at least one x_10 for which x_10 is not a scientist. Finally, from the fact that for all x_10, x_10 is a scientist or x_10 is a cashier, and that there is at least one x_10 for which x_10 is not a scientist we can infer that there is at least one x_10 for which x_10 is a cashier, which contradicts that For all x_10, x_10 is not a cashier. Therefore, the answer is no.