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nLab > Latest Changes: pullback

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  1.  
    • CommentRowNumber1.
    • CommentAuthorUrs
    • CommentTimeMay 19th 2010

    added a Properties-section to pullback

    • CommentRowNumber2.
    • CommentAuthorJohn Baez
    • CommentTimeJan 27th 2018
    • (edited Jan 27th 2018)

    I made some minor improvements to the Properties section of pullback, making it match the similar section in pushout insofar as it can. (It’s a bit tiring to have to look at both these pages to get all the basic properties, so I fixed that, but for properties that hold both for pullbacks and dually for pushouts I’m happy to have all the proofs at pullback - that’s how it works now.)

  3. Fixed a tiny typo ‘hold -> holds’.

    anqurvanillapy

    diff, v34, current

  4. Several pages on inductive types/W-types link to this page and use the term “pullback functor” with notation f *f^*, yet if you Ctrl-F on this page, you can’t find this term. This edit at least shortly mentions it and links to base change.

    Stipulation: redirect pullback functor to base change

    WorldSEnder

    diff, v35, current

    • CommentRowNumber5.
    • CommentAuthorDmitri Pavlov
    • CommentTimeApr 6th 2020

    Added cartesian redirects.

    diff, v39, current

  6. Put some commutative diagrams in tikz-cd

    Anonymous

    diff, v40, current

  7. Put some commutative diagrams in tikz-cd

    Anonymous

    diff, v40, current

  8. Moved some commutative diagrams to tikz-cd

    Anonymous

    diff, v40, current

  9. Thank you very much, Mr. or Mrs. Anonymous!

  10. Puts many diagrams in tikz-cd

    Anonymous

    diff, v41, current

    • CommentRowNumber11.
    • CommentAuthorAlec Rhea
    • CommentTimeNov 4th 2020

    Added a spelled out definition of categorical pullbacks, not relying on an understanding of limits.

    diff, v42, current

    • CommentRowNumber12.
    • CommentAuthorDmitri Pavlov
    • CommentTimeNov 21st 2020

    Added a reference to Joyal’s CatLab.

    diff, v44, current

    • CommentRowNumber13.
    • CommentAuthorUrs
    • CommentTimeSep 4th 2021

    added pointer to:

    diff, v47, current

    • CommentRowNumber14.
    • CommentAuthorvarkor
    • CommentTimeAug 22nd 2024

    Mention terminology “carrable”.

    diff, v51, current

1 to 14 of 14

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