Subject: categories: Re: WHY ARE WE CONCERNED? I

From: Nikita Danilov <[email-masked]>
Date: Thu, 30 Mar 2006 14:33:51 +0400

Vaughan Pratt writes:

[...]

 >
 > This slick proof seems only to have emerged in the past couple of
 > decades.  It is an interesting commentary on mathematics that it took
 > this long for people to come up with an argument "for the rest of us."
 > Maybe some people "knew" it all along, but in that case they were
 > keeping pretty quiet about it.

This proof was used by Pontryagin in the April 1982 issue of "Kvant"
magazine (targeting school-children!):
http://kvant.mccme.ru/1982/04/osnovnaya_teorema_algebry.htm (in
Russian, but pictures should be enough).

 > Vaughan Pratt

Nikita.