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nLab > Latest Changes: (infinity,1)Topos

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    • CommentRowNumber1.
    • CommentAuthorUrs
    • CommentTimeJul 18th 2020

    I thought we had a reference for this on the nnLab, but now I don’t find it:

    What’s a citation for the statement that ∞Groupoids\infty Groupoids is the terminal object in (∞,1)Toposes(\infty,1)Toposes?

    diff, v9, current

    • CommentRowNumber2.
    • CommentAuthorUrs
    • CommentTimeJul 18th 2020

    Ah, never mind, it’s 6.3.4.1 in HTT. Am adding it….

    • CommentRowNumber3.
    • CommentAuthorHurkyl
    • CommentTimeNov 24th 2020

    The proposition describing colimits of toposes appeared twice. I’m pretty sure the first version is wrong – it asserted colimits of toposes are given by colimits of the direct image parts.

    diff, v10, current

    • CommentRowNumber4.
    • CommentAuthorHurkyl
    • CommentTimeNov 24th 2020

    Added the fact that colimits in a topos induce colimits of slice toposes.

    diff, v10, current

1 to 4 of 4

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