3 ms·

Hmm, well you can read for yourself, my prof is nice enough to have posted all of the lecture notes online; These are the lectures from the second class where t

Hmm, well you can read for yourself, my prof is nice enough to have posted all of the lecture notes online; These are the lectures from the second class where the result is covered on the third page: https://www.math.ualberta.ca/~xinweiyu/117-118.14-15/20140904.pdf https://www.math.ualberta.ca/~xinweiyu/117-118.14-15/2014090... And then the homework (Q3): https://www.math.ualberta.ca/~xinweiyu/117-118.14-15/20140904HW1.pdf https://www.math.ualberta.ca/~xinweiyu/117-118.14-15/2014090... Where the corollary follows.

JadeNB 10y ago
To be clear, I didn't mean "Are you joking?" as in "You are obviously lying or mistaken"; I really meant, exactly and only, "Are you joking?", because I found it incredible. Well, obviously you are not; and I would have taken you at your word without proof, but thank you for the careful documentation. I still would be hesitant to talk about this in my own calculus courses, but, given the impression that this made on you and Will Stein's endorsement (https://news.ycombinator.com/item?id=12886751 https://news.ycombinator.com/item?id=12886751), it sounds like that's just undue timidity on my part.