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• CommentRowNumber1.
• CommentAuthorUrs
• CommentTimeJan 20th 2011

I have started working on Diff: added a subsection with discussion of its properties as a site.

Added statement and proof of the fact that

• $Sh(Diff)$ is a cohesive topos (direct consequence of the comparison lemma)

• $Sh_{(\infty,1)}(Diff)$ is a cohesive (infinity,1)-topos (easy with some lemmas from the literature, but not immediate (I think))

• CommentRowNumber2.
• CommentAuthorUrs
• CommentTimeMay 29th 2020
• (edited May 29th 2020)

I renamed this entry from “Diff” to “SmoothManifolds”, with a discussion of alternative terminology in the text. This is to avoid clashes with other usages of “Diff” (which I made now a disambiguation page).

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