Consider the following premises. If it is cold, then Barbara is playing squash. Barbara is playing squash if and only if Jennifer is curious. Jennifer is curious or it is cold. Can we infer the following from them? Barbara is playing squash or it is cloudy.
 From the fact that Barbara is playing squash if and only if Jennifer is curious we can infer that if Jennifer were curious, then Barbara is playing squash. From the fact that if Jennifer were curious, then Barbara is playing squash, that if it is cold, then Barbara is playing squash, and that Jennifer is curious or it is cold we can infer that Barbara is playing squash. Finally, from the fact that Barbara is playing squash we can infer that Barbara is playing squash or it is cloudy. Therefore, the answer is yes.