Important update, Jan. 17 at 18:00 UTC: There have been a lot of objections raised about the video mentioned below and the way I describe the math therein. It’s more than I can simply add or update ...
https://doi.org/10.4169/college.math.j.43.4.321 • https://www.jstor.org/stable/10.4169/college.math.j.43.4.321 Copy URL ...