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    • CommentRowNumber1.
    • CommentAuthorTodd_Trimble
    • CommentTimeFeb 17th 2014

    I am adding some bits and pieces to geometric stability theory (which I am trying to learn more about these days).

    • CommentRowNumber2.
    • CommentAuthorUrs
    • CommentTimeFeb 18th 2014

    Thanks, interesting.

    As usual by now, I have added some more hyperlinks. Right in the first sentence I have added “the branch of model theory called…”. Okay?

    • CommentRowNumber3.
    • CommentAuthorUrs
    • CommentTimeFeb 18th 2014
    • (edited Feb 18th 2014)

    In the Foundations-of-Mechanics workshop in Paris this week (here) there was also a talk meaning to review the idea by Zilber on how to apply model theory to physics (slides are here). We had discussed this once here before, maybe. I missed the talk, but looked at the slides, and once I had heard Zilbert himself speak about this. Nevertheless, I still don’t really feel like I understand well what the upshot here is.

    (This is likely off-topic regarding Todd’s entry here. I was just being reminded of it.)

    • CommentRowNumber4.
    • CommentAuthorUrs
    • CommentTimeFeb 18th 2014
    • (edited Feb 18th 2014)

    It would be nice if the entry had a comment on how the concepts discussed there do inform the problem of “stability”. (?)

    • CommentRowNumber5.
    • CommentAuthorTodd_Trimble
    • CommentTimeFeb 18th 2014
    • (edited Feb 18th 2014)

    Right in the first sentence I have added “the branch of model theory called…”. Okay?

    Thanks; fine by me (actually Zoran wrote that sentence and got the article started generally).

    Was waiting several hours for my last edit to be submitted, so I gave up once I saw your nForum announcements. I’ll see whether I get all of my edit back.

    It would be nice if the entry had a comment on how the concepts discussed there do inform the problem of “stability”. (?)

    Well, I hope to be getting by and by to things like ω\omega-stable theories. I’m not sure how well the logician’s terminology will mesh with whatever you meant by problem of “stability”; generally the idea is to be able to classify certain well-behaved classes of structures by dimension-like quantities. (To be honest, I don’t really know why they use that word! But maybe I’ll find out soon. Maybe Zoran knows?)

    • CommentRowNumber6.
    • CommentAuthorUrs
    • CommentTimeFeb 18th 2014

    Todd, I had just made trivial edits, so please simply roll them back and overwrite them.

    I remember we ran into this before. Maybe when you next go to an edit session with saving-intervals longer than the nLab’s automatic locking functionality will wait, write at the top of the entry (or here on the nForum) a warning line “Please don’t touch, as this is currently being edited offline” or something like this.

    • CommentRowNumber7.
    • CommentAuthorTodd_Trimble
    • CommentTimeFeb 18th 2014

    Thanks, Urs. It’s okay; I think I got them all. And you’re right – I should have posted a warning. Thanks for your interest!