Mostly out of curiosity: Where do I find Joyal's letter to Grothendieck in which he defines a model structure on simplicial sheaves?

The question was already asked in this MO post, but that particular part of the question has not been answered yet.

  • $\begingroup$ I am very glad you reasked this question, but I think that for the record we should point out some previous relevant meta discussion on reasking protocol: meta.mathoverflow.net/questions/1110/… $\endgroup$
    – Todd Trimble
    Dec 19, 2014 at 18:56

1 Answer 1


The letter may be found on Georges Maltsiniotis' webpage containing material related to Pursuing Stacks. (A direct link to the pdf.)

  • 4
    $\begingroup$ I love the fact that the theorem statements are in English, while the whole rest is in French. $\endgroup$ Dec 23, 2014 at 12:52

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