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  1. Page created, but author did not leave any comments.

    Egbert Rijke

    v1, current

    • CommentRowNumber2.
    • CommentAuthorUrs
    • CommentTimeAug 2nd 2020
    • (edited Aug 2nd 2020)

    Thanks to Egbert for starting this! (We had been discussing behind the scenes).

    I have now added redirects and changed capitalization in order to make the last three hyperlinks come out properly:

    The second and third of these would deserve page of their own. If so, just remove the redirect and create the dedicated page.

    diff, v2, current

    • CommentRowNumber3.
    • CommentAuthorEgbertRijke
    • CommentTimeAug 2nd 2020

    The spam detector of the nlab prevents me from making further edits. What can I do about this?

    • CommentRowNumber4.
    • CommentAuthorUrs
    • CommentTimeAug 2nd 2020

    Try to add smaller pieces at a time. If all fails, post the code to the nForum here and I can insert it.

    • CommentRowNumber5.
    • CommentAuthorUrs
    • CommentTimeAug 2nd 2020
    • (edited Aug 2nd 2020)

    I have added the pointer to the GitHub page! :-)

    diff, v5, current

    • CommentRowNumber6.
    • CommentAuthorUrs
    • CommentTimeAug 2nd 2020
    • (edited Aug 2nd 2020)

    added hyperlinking to a few more of the technical terms (such as type theory, homotopy theory and Agda)

    diff, v5, current

    • CommentRowNumber7.
    • CommentAuthorEgbertRijke
    • CommentTimeAug 2nd 2020

    Thanks so much!

    And I figured it out with the smaller edits :)

    • CommentRowNumber8.
    • CommentAuthorEgbertRijke
    • CommentTimeAug 2nd 2020

    I tried to include the links in a way that doesn’t suggest that the pdf is what the book actually will look like (because these course notes are quite old).

    • CommentRowNumber9.
    • CommentAuthorDavidRoberts
    • CommentTimeAug 2nd 2020

    Listed page lengths for the two versions of the course notes. Makes it clear that the later notes are shorter, not longer!

    diff, v8, current

  2. I included the section titles to give an idea of the outline of the book.

    Egbert Rijke

    diff, v10, current

    • CommentRowNumber11.
    • CommentAuthorUrs
    • CommentTimeAug 4th 2020
    • (edited Aug 4th 2020)

    Might you (or anyone reading here) have 5 minutes to give “Univalent Foundations for Mathematics” a little entry of its own, with a sentence on the basic idea? (So that it does not just redirect to the HoTT book.)

    And while we are at it, let’s rename to “Rezk-Lurie-Voevodksy’s univalent foundations” – because, apart from the inventive terminology, the observation of univalent universes first appears in Jacob’s HTT 6.1.6 (published 2009), where it is attributed to private conversation with Charles. Voevodsky’s first note on it seems to be from 2010.

    • CommentRowNumber12.
    • CommentAuthorGuest
    • CommentTimeAug 4th 2020
    Ok, I will do it
    • CommentRowNumber13.
    • CommentAuthorEgbertRijke
    • CommentTimeAug 4th 2020
    That last comment was by me. Sorry, I did not realise that I wasn't logged in
    • CommentRowNumber14.
    • CommentAuthorAli Caglayan
    • CommentTimeAug 4th 2020
    @Urs It doesn't seem correct to me to rename it "Rezk-Lurie-Voevodsky's univalent foundations". I think you are conflating two separate issues here. The observation that higher toposes have univalent universes is not the same as a "univalent foundation". The latter is AFAIK something that Voevodsky started for foundational reasons, whilst the former is typically attributed to Voevodsky in the form of the univalence axiom. I think the former can be renamed "Rezk-Lurie-Voevodsky univalence" if you really want, but my point is that it has little to do with the idea of "univalent foundations".
    • CommentRowNumber15.
    • CommentAuthorEgbertRijke
    • CommentTimeAug 4th 2020
    Let's have that discussion at the page about the univalent foundations for mathematics
    • CommentRowNumber16.
    • CommentAuthorUrs
    • CommentTimeAug 4th 2020

    The latter is AFAIK something that Voevodsky started for foundational reasons, whilst the former is typically attributed to Voevodsky

    That’s a telling slip of tongue there ;-)

    • CommentRowNumber17.
    • CommentAuthorGuest
    • CommentTimeJan 14th 2022
    This page needs an update. It is 2022 already and the textbook has not been published yet.
    • CommentRowNumber18.
    • CommentAuthorGuest
    • CommentTime3 days ago

    To the guest at 17: the textbook isn’t published yet, but Egbert Rijke did release another preprint here.

    • CommentRowNumber19.
    • CommentAuthorUrs
    • CommentTime3 days ago

    Not sure where this link was intended to point, but the entry Introduction to Homotopy Type Theory (which #17 is referring to) lists several links to preprint versions.

    • CommentRowNumber20.
    • CommentAuthorGuest
    • CommentTime3 days ago

    Urs, this preprint was only released on September 2021 as said in the pdf file itself, so isn’t actually linked in the article.

    • CommentRowNumber21.
    • CommentAuthorGuest
    • CommentTime3 days ago
    It also has 36 chapters instead of 15 so the table of contents needs to be modified as well.
    • CommentRowNumber22.
    • CommentAuthorUrs
    • CommentTime3 days ago

    I still don’t know which preprint you mean, as the link in your #18 is broken! (Maybe I should have said this more explicitly in #19. Please check the link and let us know where you are pointing us to.)

    • CommentRowNumber23.
    • CommentAuthorDavidRoberts
    • CommentTime3 days ago

    It’s a link to a pdf on the HoTT Zulip, this is the thread where it is.

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