Consider the following premises. There is at least one x_10 for which if x_10 were a soldier, then x_10 is not driving a car. For all x_10, x_10 will not sleep or x_10 will climb a mountain. For all x_10, x_10 will drive a car if and only if x_10 will climb a mountain. For all x_10, if x_10 reads a book, then x_10 is driving a car. For all x_10, x_10 will sleep or x_10 will read a book. Can we infer the following from them? For all x_10, x_10 is a soldier.
 From the fact that for all x_10, x_10 will drive a car if and only if x_10 will climb a mountain we can infer that for all x_10, if x_10 climbs a mountain, then x_10 is driving a car. From the fact that for all x_10, x_10 will sleep or x_10 will read a book, and that for all x_10, x_10 will not sleep or x_10 will climb a mountain we can infer that for all x_10, x_10 will read a book or x_10 will climb a mountain. From the fact that for all x_10, if x_10 reads a book, then x_10 is driving a car, that for all x_10, if x_10 climbs a mountain, then x_10 is driving a car, and that for all x_10, x_10 will read a book or x_10 will climb a mountain we can infer that for all x_10, x_10 will drive a car. Finally, from the fact that there is at least one x_10 for which if x_10 were a soldier, then x_10 is not driving a car, and that for all x_10, x_10 will drive a car we can infer that there is at least one x_10 for which x_10 is not a soldier, which contradicts that For all x_10, x_10 is a soldier. Therefore, the answer is no.