618
pro choice
(mander.xyz)
A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.

Rules
This is a science community. We use the Dawkins definition of meme.
It's been a while since I've done products of sets, but what if one of the sets in the product is a set of empty sets?
Then it's not empty. If it were a union of empty sets, that would be empty.