Consider the following premises. For all x_10, if x_10 reads a book, then x_10 is a musician. For all x_10, if x_10 listens to a song, then x_10 is reading a book. For all x_10, if x_10 sleeps, then x_10 is listening to a song. There is at least one x_10 for which x_10 will not sleep. For all x_10, if x_10 were a musician, then x_10 is sleeping. Can we infer the following from them? There is at least one x_10 for which x_10 will not listen to a song.
 From the fact that for all x_10, if x_10 reads a book, then x_10 is a musician, and that for all x_10, if x_10 were a musician, then x_10 is sleeping we can infer that for all x_10, if x_10 reads a book, then x_10 is sleeping. From the fact that for all x_10, if x_10 listens to a song, then x_10 is reading a book, and that for all x_10, if x_10 reads a book, then x_10 is sleeping we can infer that for all x_10, if x_10 listens to a song, then x_10 is sleeping. From the fact that for all x_10, if x_10 listens to a song, then x_10 is sleeping, and that for all x_10, if x_10 sleeps, then x_10 is listening to a song we can infer that for all x_10, x_10 will listen to a song if and only if x_10 will sleep. From the fact that for all x_10, x_10 will listen to a song if and only if x_10 will sleep we can infer that for all x_10, if x_10 listens to a song, then x_10 is sleeping. Finally, from the fact that for all x_10, if x_10 listens to a song, 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 will not listen to a song. Therefore, the answer is yes.