Consider the following premises. If Michael were an electrician, then Mary is not a poet. Mary is a poet. If Michael were not an electrician, then it is snowing. If it snows, then Linda is a nurse. Can we infer the following from them? Linda is not a nurse.
 From the fact that if Michael were an electrician, then Mary is not a poet, and that Mary is a poet we can infer that Michael is not an electrician. From the fact that if Michael were not an electrician, then it is snowing, and that if it snows, then Linda is a nurse we can infer that if Michael were not an electrician, then Linda is a nurse. Finally, from the fact that if Michael were not an electrician, then Linda is a nurse, and that Michael is not an electrician we can infer that Linda is a nurse, which contradicts that Linda is not a nurse. Therefore, the answer is no.