Consider the following premises. For all x_14, x_14 will not take a plane. For all x_14, if x_14 were an astronaut, then x_14 is a nurse. For all x_14, x_14 will take a plane if and only if x_14 is a nurse. There is at least one x_14 for which x_14 is an astronaut or x_14 is not an artist. For all x_14, if x_14 were a nurse, then x_14 is an astronaut. Can we infer the following from them? There is at least one x_14 for which x_14 is not an artist.
 From the fact that for all x_14, if x_14 were an astronaut, then x_14 is a nurse, and that for all x_14, if x_14 were a nurse, then x_14 is an astronaut we can infer that for all x_14, x_14 is an astronaut if and only if x_14 is a nurse. From the fact that for all x_14, x_14 will take a plane if and only if x_14 is a nurse, and that for all x_14, x_14 will not take a plane we can infer that for all x_14, x_14 is not a nurse. From the fact that for all x_14, x_14 is an astronaut if and only if x_14 is a nurse, and that for all x_14, x_14 is not a nurse we can infer that for all x_14, x_14 is not an astronaut. From the fact that there is at least one x_14 for which x_14 is an astronaut or x_14 is not an artist we can infer that there is at least one x_14 for which if x_14 were an artist, then x_14 is an astronaut. Finally, from the fact that there is at least one x_14 for which if x_14 were an artist, then x_14 is an astronaut, and that for all x_14, x_14 is not an astronaut we can infer that there is at least one x_14 for which x_14 is not an artist. Therefore, the answer is yes.