Consider the following premises. John is climbing a mountain if and only if James is a writer. John is climbing a mountain or it is cold. Joseph is not playing squash. If James were a writer, then Joseph is playing squash. Can we infer the following from them? It is not cold.
 From the fact that if James were a writer, then Joseph is playing squash, and that Joseph is not playing squash we can infer that James is not a writer. From the fact that John is climbing a mountain if and only if James is a writer, and that James is not a writer we can infer that John is not climbing a mountain. Finally, from the fact that John is climbing a mountain or it is cold, and that John is not climbing a mountain we can infer that it is cold, which contradicts that It is not cold. Therefore, the answer is no.