Consider the following premises. If David were an electrician, then Michael is a carpenter. It is windy or Michael is not a carpenter. If Michael were a carpenter, then David is an electrician. Can we infer the following from them? The fact that David were an electrician does not imply that it is windy.
 From the fact that if David were an electrician, then Michael is a carpenter, and that if Michael were a carpenter, then David is an electrician we can infer that David is an electrician if and only if Michael is a carpenter. From the fact that it is windy or Michael is not a carpenter we can infer that if Michael were a carpenter, then it is windy. From the fact that David is an electrician if and only if Michael is a carpenter we can infer that if David were an electrician, then Michael is a carpenter. Finally, from the fact that if David were an electrician, then Michael is a carpenter, and that if Michael were a carpenter, then it is windy we can infer that if David were an electrician, then it is windy, which contradicts that The fact that David were an electrician does not imply that it is windy. Therefore, the answer is no.