Consider the following premises. For all x, x is not a mechanic. For all x, x is curious if and only if x will work. For all x, x is a mechanic if and only if x is curious. Can we infer the following from them? For all x, x will not work.
 From the fact that for all x, x is a mechanic if and only if x is curious, and that for all x, x is not a mechanic we can infer that for all x, x is not curious. Finally, from the fact that for all x, x is curious if and only if x will work, and that for all x, x is not curious we can infer that for all x, x will not work. Therefore, the answer is yes.