Consider the following premises. For all x_12, if x_12 plays squash, then x_12 is not an astronaut. For all x_12, if x_12 were a musician, then x_12 is an astronaut. For all x_12, if x_12 listens to a song, then x_12 is a musician. There is at least one x_12 for which x_12 will listen to a song. Can we infer the following from them? There is at least one x_12 for which x_12 will not play squash.
 From the fact that for all x_12, if x_12 listens to a song, then x_12 is a musician, and that there is at least one x_12 for which x_12 will listen to a song we can infer that there is at least one x_12 for which x_12 is a musician. From the fact that for all x_12, if x_12 were a musician, then x_12 is an astronaut, and that there is at least one x_12 for which x_12 is a musician we can infer that there is at least one x_12 for which x_12 is an astronaut. Finally, from the fact that for all x_12, if x_12 plays squash, then x_12 is not an astronaut, and that there is at least one x_12 for which x_12 is an astronaut we can infer that there is at least one x_12 for which x_12 will not play squash. Therefore, the answer is yes.