Homework Question

So I'm not sure how often people look at the blog, but this seems a good a place as any.

For question 6, part a, is there something we are supposed to prove?  It looks to me like a definition required for b-e, but I don't see a question for part a.

Also, while I'm here, is there still a take home final?  Or is this last homework sorta the final or something.