Consider the following premises. For all x_11, if x_11 listens to a song, then x_11 is reading a book. There is at least one x_11 for which if x_11 climbs a mountain, then x_11 is listening to a song. For all x_11, if x_11 works, then x_11 is driving a car. For all x_11, x_11 will work or x_11 will not read a book. Can we infer the following from them? There is at least one x_11 for which if x_11 climbs a mountain, then x_11 is driving a car.
 From the fact that for all x_11, x_11 will work or x_11 will not read a book we can infer that for all x_11, if x_11 reads a book, then x_11 is working. From the fact that for all x_11, if x_11 reads a book, then x_11 is working, and that for all x_11, if x_11 works, then x_11 is driving a car we can infer that for all x_11, if x_11 reads a book, then x_11 is driving a car. From the fact that there is at least one x_11 for which if x_11 climbs a mountain, then x_11 is listening to a song, and that for all x_11, if x_11 listens to a song, then x_11 is reading a book we can infer that there is at least one x_11 for which if x_11 climbs a mountain, then x_11 is reading a book. Finally, from the fact that there is at least one x_11 for which if x_11 climbs a mountain, then x_11 is reading a book, and that for all x_11, if x_11 reads a book, then x_11 is driving a car we can infer that there is at least one x_11 for which if x_11 climbs a mountain, then x_11 is driving a car. Therefore, the answer is yes.