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    • CommentRowNumber1.
    • CommentAuthorUrs
    • CommentTimeNov 6th 2010
    • (edited Feb 16th 2012)

    I rewrote the Idea-section of geometry (for structured (infinity,1)-toposes), tring to make it more to the point and much shorter. Also highlighted the relation to oo-algebraic theories.

    • CommentRowNumber2.
    • CommentAuthorUrs
    • CommentTimeDec 29th 2010

    I once again rewrote the Idea-section of geometry (for structured (infinity,1)-toposes), trying to highlight the general concept better, starting from the statement that a geometry is category equipped compatibly with two dual structures/properties: that of a site and that of an essentially algebraic theory.

    • CommentRowNumber3.
    • CommentAuthorUrs
    • CommentTimeFeb 16th 2012
    • (edited Feb 16th 2012)

    In the section Geometry I fixed two problems, that were pointed out by Stephan Spahn in another thread: where it said “2-out-of-3” it should read “2/3 of 2-out-of-3” or better, probably: “right cancellability”. And the statement of closure under retracts was missing.

    The whole entry would deserve some polishing. Maybe later.