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nLab > Latest Changes: 2-pullback

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  1.  
    • CommentRowNumber1.
    • CommentAuthorTim_Porter
    • CommentTimeAug 22nd 2011

    Query from Stephen on 2-pullback.

    • CommentRowNumber2.
    • CommentAuthorTobyBartels
    • CommentTimeAug 22nd 2011

    Answered.

    • CommentRowNumber3.
    • CommentAuthorUrs
    • CommentTimeNov 27th 2022
    • (edited Nov 27th 2022)

    hyperlinked the term strict iso-comma object

    also removed the obsolete query box (from #2, 11 years ago)

    diff, v20, current

    • CommentRowNumber4.
    • CommentAuthorUrs
    • CommentTimeNov 27th 2022

    looking at this entry now, I am doing a lot of polishing of the typesetting.

    also, I am replacing all “up to isomorphism” by “up to 2-isomorphism”

    here I have entirely deleted a second almost-copy of the square, which was redundant and seemed to have been a remnant of a copy-and-paste move

    I only now realized that all kinds of variants of “comma object” were redirects to this entry here. I have changed all these to instead point to comma object, but I am adding prominent pointer there back to here

    (I understand the logic that the iso-comma objects are equivalently pseudo-pullbacks, but it still seems the previous redirect structure was not helpful)

    diff, v20, current

  5. fixed a typo

    Anonymous

    diff, v21, current

1 to 5 of 5

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