Consider the following premises. For all x_6, x_6 is not a nurse or x_6 is excited. There is at least one x_6 for which x_6 is a nurse or x_6 is a mechanic. For all x_6, if x_6 were a mechanic, then x_6 is cooking. For all x_6, x_6 is excited if and only if x_6 will cook. Can we infer the following from them? For all x_6, x_6 will not cook.
 From the fact that there is at least one x_6 for which x_6 is a nurse or x_6 is a mechanic, and that for all x_6, x_6 is not a nurse or x_6 is excited we can infer that there is at least one x_6 for which x_6 is a mechanic or x_6 is excited. From the fact that for all x_6, x_6 is excited if and only if x_6 will cook we can infer that for all x_6, if x_6 were excited, then x_6 is cooking. Finally, from the fact that for all x_6, if x_6 were a mechanic, then x_6 is cooking, that for all x_6, if x_6 were excited, then x_6 is cooking, and that there is at least one x_6 for which x_6 is a mechanic or x_6 is excited we can infer that there is at least one x_6 for which x_6 will cook, which contradicts that For all x_6, x_6 will not cook. Therefore, the answer is no.