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    • CommentRowNumber1.
    • CommentAuthorMike Shulman
    • CommentTimeNov 18th 2016

    Does anyone have a copy of a paper by Penon called “Topologie et intuitionnisme” or know where it can be found? I’ve seen it cited in a few places, but I can’t even find it listed in MathSciNet.

    • CommentRowNumber2.
    • CommentAuthorDavidRoberts
    • CommentTimeNov 18th 2016

    Sounds like something that old guard on the categories mailing list would have.

    • CommentRowNumber3.
    • CommentAuthorRichard Williamson
    • CommentTimeNov 18th 2016
    • (edited Nov 18th 2016)

    Googling it, as you no doubt did as well, it appears to be a pre-print, which might explain why it is not in MathSciNet. Specifically, it seems to be from the series ’Prépublications Mathématiques de l’Université Paris-Nord’. The universities in Paris have changed structure over the years, but I would expect that it is still archived in a library in Paris, probably at Paris 13. You could try asking one of these members of the algebraic topology group there to take a look, and copy it for you.

    Failing that, I’d try Andrée Ehresmann, who I think would know where to obtain it.

    If you get hold of it, I’d be very happy to have a copy :-).

    • CommentRowNumber4.
    • CommentAuthorMike Shulman
    • CommentTimeNov 19th 2016

    Well, I’ve now found Penon’s thesis online here, in which Chapter III probably contains everything I hoped to learn from Topologie et intuitionnisme. So I probably won’t try further to track it down.

    • CommentRowNumber5.
    • CommentAuthorTim_Porter
    • CommentTimeNov 19th 2016
    • (edited Nov 19th 2016)

    The obvious thing to do was to ask Jacques himself!

    https://webusers.imj-prg.fr/~jacques.penon/