Cleaning Odor From Nose

The first theorem is never forgotten

A little 'underwear today.

I just realized that I have very strong memories are divided into three categories.

- emotional experiences (we understand)
-

sporting experiences and, last but not least, mathematical experiences.

For example, I remember exactly where and when and how:

- I understand the Monty Hall problem
- I learned the construction of the second Peano natural
- I understand the dimension theorem
- I read and studied the Gödel's theorem
- I met for the first time the set-theoretic topology

etc etc etc ...