Consider the following premises. It is cloudy if and only if David is a sailor. Robert is taking a plane. If David were a sailor, then Robert is not taking a plane. Jessica is making tea. Can we infer the following from them? It is not cloudy and Jessica is making tea.
 From the fact that if David were a sailor, then Robert is not taking a plane, and that Robert is taking a plane we can infer that David is not a sailor. From the fact that it is cloudy if and only if David is a sailor, and that David is not a sailor we can infer that it is not cloudy. Finally, from the fact that it is not cloudy, and that Jessica is making tea we can infer that it is not cloudy and Jessica is making tea. Therefore, the answer is yes.