Consider the following premises. For all x_9, x_9 will write a letter. For all x_9, x_9 will climb a mountain or x_9 is a mechanic. For all x_9, if x_9 were a mechanic, then x_9 is an electrician. For all x_9, if x_9 climbs a mountain, then x_9 is an electrician. There is at least one x_9 for which if x_9 were curious, then x_9 is not an electrician. Can we infer the following from them? There is at least one x_9 for which x_9 is not curious.
 From the fact that for all x_9, if x_9 climbs a mountain, then x_9 is an electrician, that for all x_9, if x_9 were a mechanic, then x_9 is an electrician, and that for all x_9, x_9 will climb a mountain or x_9 is a mechanic we can infer that for all x_9, x_9 is an electrician. From the fact that for all x_9, x_9 is an electrician, and that for all x_9, x_9 will write a letter we can infer that for all x_9, x_9 is an electrician and x_9 will write a letter. From the fact that for all x_9, x_9 is an electrician and x_9 will write a letter we can infer that for all x_9, x_9 is an electrician. Finally, from the fact that there is at least one x_9 for which if x_9 were curious, then x_9 is not an electrician, and that for all x_9, x_9 is an electrician we can infer that there is at least one x_9 for which x_9 is not curious. Therefore, the answer is yes.