Ask HN: Trying to find a specific math book

4 points by lgdw ↗ HN
There was a book that I think somebody mentioned a while ago in a comment on some post somewhere here but I lost the pdf link to it when I cleared my browser history. It was by a former IOI or IMO winner about several fields of abstract math and their connections. Googling didn't help much so I'm hoping somebody knows the book.

5 comments

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It would help if you specified whether the book is a textbook, if it's a dead tree book or ebook, or if it might even be an online "book" like the Stacks Project: https://stacks.math.columbia.edu/