Consider the following premises. Jennifer is happy or it is snowing. If Jennifer were happy, then Joseph is a sailor. If it is windy, then Robert is not a lawyer. If it snows, then Joseph is a sailor. Robert is a lawyer. Can we infer the following from them? If we can, name the inference rule being used: If Joseph were a sailor, then it is not windy.
We cannot infer that from the premises. Therefore the answer is no.