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    • CommentRowNumber1.
    • CommentAuthorUrs
    • CommentTimeJun 27th 2018

    am beginning something here. not done yet, but I need to save and preview, and hence to announce…

    v1, current

    • CommentRowNumber2.
    • CommentAuthorDavid_Corfield
    • CommentTimeJun 27th 2018

    In the table after

    Then these arrange into the following progression…

    you have idid in the bottom row. I’d change it myself, but you may be working on it offline. I imagine this table may be copied in from elsewhere.

    • CommentRowNumber3.
    • CommentAuthorDavid_Corfield
    • CommentTimeJun 27th 2018

    Also

    ι supι infΠ infPi sup\Re \;\coloneqq\; \iota_{sup} \iota_{inf} \circ \Pi_{inf}Pi_{sup}

    and

    Disc supΠ sup\rightsquigarrow \;\coloneqq\; Disc_{sup} \circ \Pi_{sup}

    Again, these may be repeated elsewhere.

    • CommentRowNumber4.
    • CommentAuthorUrs
    • CommentTimeJun 27th 2018
    • (edited Jun 27th 2018)

    Thanks for spotting these! All fixed now.

    Yes, this is spin-off material of the lecture notes geometry of physics – categories and toposes (where it is, currently, the last section here). I have fixed it there now, too. Thanks again.