Consider the following premises. There is at least one x_8 for which x_8 is a nurse or x_8 is an artist. For all x_8, if x_8 were a nurse, then x_8 is a bartender. For all x_8, x_8 will take a plane if and only if x_8 is a bartender. For all x_8, if x_8 were an artist, then x_8 is taking a plane. Can we infer the following from them? For all x_8, x_8 will not take a plane.
 From the fact that for all x_8, x_8 will take a plane if and only if x_8 is a bartender we can infer that for all x_8, if x_8 were a bartender, then x_8 is taking a plane. From the fact that for all x_8, if x_8 were a nurse, then x_8 is a bartender, and that for all x_8, if x_8 were a bartender, then x_8 is taking a plane we can infer that for all x_8, if x_8 were a nurse, then x_8 is taking a plane. Finally, from the fact that for all x_8, if x_8 were a nurse, then x_8 is taking a plane, that for all x_8, if x_8 were an artist, then x_8 is taking a plane, and that there is at least one x_8 for which x_8 is a nurse or x_8 is an artist we can infer that there is at least one x_8 for which x_8 will take a plane, which contradicts that For all x_8, x_8 will not take a plane. Therefore, the answer is no.