Consider the following premises. For all x_10, if x_10 were curious, then x_10 is not playing tennis. For all x_10, x_10 is happy or x_10 will play tennis. There is at least one x_10 for which if x_10 listens to a song, then x_10 is making tea. For all x_10, x_10 will make tea if and only if x_10 is curious. For all x_10, x_10 is not happy. 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, x_10 is happy or x_10 will play tennis, and that for all x_10, x_10 is not happy we can infer that for all x_10, x_10 will play tennis. From the fact that for all x_10, if x_10 were curious, then x_10 is not playing tennis, and that for all x_10, x_10 will play tennis we can infer that for all x_10, x_10 is not curious. From the fact that for all x_10, x_10 will make tea if and only if x_10 is curious, and that for all x_10, x_10 is not curious we can infer that for all x_10, x_10 will not make tea. Finally, from the fact that there is at least one x_10 for which if x_10 listens to a song, then x_10 is making tea, and that for all x_10, x_10 will not make tea 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.