Consider the following premises. For all x_6, x_6 is rich or x_6 is not curious. For all x_6, x_6 is not an astronaut. For all x_6, if x_6 were curious, then x_6 is an astronaut. For all x_6, if x_6 were rich, then x_6 is curious. Can we infer the following from them? For all x_6, x_6 is not rich.
 From the fact that for all x_6, if x_6 were curious, then x_6 is an astronaut, and that for all x_6, x_6 is not an astronaut we can infer that for all x_6, x_6 is not curious. From the fact that for all x_6, x_6 is rich or x_6 is not curious we can infer that for all x_6, if x_6 were curious, then x_6 is rich. From the fact that for all x_6, if x_6 were rich, then x_6 is curious, and that for all x_6, if x_6 were curious, then x_6 is rich we can infer that for all x_6, x_6 is rich if and only if x_6 is curious. Finally, from the fact that for all x_6, x_6 is rich if and only if x_6 is curious, and that for all x_6, x_6 is not curious we can infer that for all x_6, x_6 is not rich. Therefore, the answer is yes.