Like a snake eating its tail... it's inside itself!

The powerset is not inside itself. The set you create the powerset from is inside the powerset and every possible subset.

I wish I was your calculus homework, because then I'd be really hard and you'd do me on your desk.

It depends the power set of what. "I wish I was your power set" would be more accurate, I guess.

I see she's going for a union. Or is it an intersection?

How is it that all the comments on this comic are funnier than the comic itself? Well done, folks.

She'll have to take off her Goeddel

If they lived together would they be a family of sets?

Heh reminds me of this:
http://topologicalgirlsgeneration.tumblr.com/