Consider the following premises. For all x_9, if x_9 reads a book, then x_9 is curious. There is at least one x_9 for which x_9 is not curious. For all x_9, if x_9 were happy, then x_9 is reading a book. For all x_9, x_9 will drive a car if and only if x_9 is happy. Can we infer the following from them? For all x_9, x_9 will drive a car.
 From the fact that for all x_9, if x_9 were happy, then x_9 is reading a book, and that for all x_9, if x_9 reads a book, then x_9 is curious we can infer that for all x_9, if x_9 were happy, then x_9 is curious. From the fact that for all x_9, if x_9 were happy, then x_9 is curious, and that there is at least one x_9 for which x_9 is not curious we can infer that there is at least one x_9 for which x_9 is not happy. Finally, from the fact that for all x_9, x_9 will drive a car if and only if x_9 is happy, and that there is at least one x_9 for which x_9 is not happy we can infer that there is at least one x_9 for which x_9 will not drive a car, which contradicts that For all x_9, x_9 will drive a car. Therefore, the answer is no.