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nLab > Latest Changes: ordinal number

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  1. removing old comment in query box

    +– {: .query} Madeleine Birchfield: Wouldn’t an ordinal number be an object of the decategorification of the category of well-ordered sets, just as a natural number is an object of the decategorification of the category FinSet? =–

    Anonymous

    diff, v21, current

  2. Adding reference

    Anonymous

    diff, v22, current

    • CommentRowNumber3.
    • CommentAuthorJ-B Vienney
    • CommentTimeDec 27th 2023

    Added the definition of ordinals from the appendix of Kelley’s topology book that I find very nice.

    diff, v24, current

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