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Search options not deleted user 6074
10 votes

Reflection principle vs universes

A question that came up in the comments was about the motivation for asking the question. Let me try to address this here. Foremost, it is about learning! As I mentioned in the original question, I ha …
Peter Scholze's user avatar
18 votes

Reflection principle vs universes

OK, I spent much of today trying to figure this out by actually looking in some detail at HTT. It's been quite a ride; I have definitely changed my perspective multiple times in the process. Currently …
Peter Scholze's user avatar
97 votes
10 answers
15k views

Reflection principle vs universes

In category-theoretic discussions, there is often the temptation to look at the category of all abelian groups, or of all categories, etc., which quickly leads to the usual set-theoretic problems. The …
Peter Scholze's user avatar