Consider the following premises. If it is overcast, then Jessica is curious. If Elisabeth were an electrician, then it is overcast. If it is overcast, then Elisabeth is an electrician. If Jessica were curious, then Elisabeth is an electrician. Can we infer the following from them? If is not true that Elisabeth is an electrician if and only if it is overcast.
 From the fact that if it is overcast, then Jessica is curious, and that if Jessica were curious, then Elisabeth is an electrician we can infer that if it is overcast, then Elisabeth is an electrician. Finally, from the fact that if Elisabeth were an electrician, then it is overcast, and that if it is overcast, then Elisabeth is an electrician we can infer that Elisabeth is an electrician if and only if it is overcast, which contradicts that If is not true that Elisabeth is an electrician if and only if it is overcast. Therefore, the answer is no.