I have a beginner Graph theory question. We just started learning it for my discrete math class and I'm confused about the wording of this question. In the examples done in class and in the textbook, the set of vertices is always represented as a single set of finite integers.
In this question however, it says the vertices are the sets {a,b}. Could someone clarify what exactly this means and the implications of this, as well as any hints for the question?
Thanks a lot