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    • CommentRowNumber1.
    • CommentAuthorUrs
    • CommentTimeJul 25th 2019
    • (edited Jul 25th 2019)

    added pointer to

    diff, v73, current

  1. fix the interval (-1,1) wrongly written as (0,1) in the example of homeomorphism


    diff, v75, current

    • CommentRowNumber3.
    • CommentAuthorUrs
    • CommentTimeAug 19th 2020
    • (edited Aug 19th 2020)

    added pointer to:

    diff, v77, current

    • CommentRowNumber4.
    • CommentAuthorUrs
    • CommentTimeSep 2nd 2021

    there was a broken pointer to “basic problems of algebraic topology” which I am removing hereby.

    (It may be interesting to have such a page, and then we can still add a link, but it is pointless to have a broken link to a non-existent such page.)

    diff, v83, current

    • CommentRowNumber5.
    • CommentAuthorUrs
    • CommentTimeSep 18th 2021

    added this quote, for fun:

    I believe that we lack another analysis properly geometric or linear which expresses location directly as algebra expresses magnitude.

    which Bredon 93, p. 430 says is due to Leibniz in a letter to Huygens 1679

    Not sure what a real source reference would be. Googling for the full quote gives another topoloy textbook that also quotes it this way, but also without further reference details

    diff, v84, current

    • CommentRowNumber6.
    • CommentAuthorUrs
    • CommentTimeDec 30th 2022
    • (edited Dec 30th 2022)

    added to the list of textbook accounts:


    • Anatole Katok, Alexey Sossinsky, Introduction to Modern Topology and Geometry (2010) [toc pdf]

    diff, v97, current

    • CommentRowNumber7.
    • CommentAuthorUrs
    • CommentTimeFeb 15th 2023

    rearranged thw wording in this bibitem, for clarity, and added the doi-link:

    diff, v99, current

    • CommentRowNumber8.
    • CommentAuthorGuest
    • CommentTimeMay 24th 2023

    Added reference

    • Felix Hausdorff Grundzüge der Mengenlehre, Leipzig: Veit (1914). ISBN 978-0-8284-0061-9 Reprinted by Chelsea Publishing Company in 1944, 1949 and 1965

    diff, v103, current

    • CommentRowNumber9.
    • CommentAuthorTodd_Trimble
    • CommentTimeMay 24th 2023

    Added Kuratowski 1922 reference.

    diff, v104, current

    • CommentRowNumber10.
    • CommentAuthorTodd_Trimble
    • CommentTimeMay 24th 2023

    Added a bibliographic reference to the first Bourbaki text (1940).

    diff, v106, current

    • CommentRowNumber11.
    • CommentAuthorUrs
    • CommentTimeMay 25th 2023

    merged the Bourbaki-item with the English translation

    diff, v107, current

    • CommentRowNumber12.
    • CommentAuthorUrs
    • CommentTimeMay 25th 2023
    • (edited May 25th 2023)

    the historical references here were unconnected to the text that goes with them, which was sitting in another entry, elsewhere. I have linked the latter back to here and inserted the pertinent comments right before the respective reference items (here)

    • CommentRowNumber13.
    • CommentAuthorTodd_Trimble
    • CommentTimeMay 25th 2023

    I did think it peculiar that where references should be in topological space, it simply said “see another article”. Another option might be just to copy appropriate bibliographic entries from topology and paste them at topological space.

    • CommentRowNumber14.
    • CommentAuthorUrs
    • CommentTimeMay 25th 2023

    best would be to create a separate entry topology – references with the bare references-section and then !include it into these entries (also maybe at general topology). This way all updates to the list automatically get synced to all these entries

    • CommentRowNumber15.
    • CommentAuthorTodd_Trimble
    • CommentTimeMay 25th 2023

    As Urs knows, topology – references has now been created.