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• CommentRowNumber1.
• CommentAuthorFosco
• CommentTimeJun 5th 2020

The page collects the various networks and communities of category theorists around the world. As far as I have seen, such page was missing from the nLab!

Feel free to continue the list

• CommentRowNumber2.
• CommentAuthorUrs
• CommentTimeJun 5th 2020

This list could probably be a subsection at category theory – References

At the very least you’d want to link to it from there, to have a chance that people see your list.

• CommentRowNumber3.
• CommentAuthorTim_Porter
• CommentTimeJun 5th 2020

• CommentRowNumber4.
• CommentAuthorUrs
• CommentTimeJun 5th 2020

Hi Fosco,

I see now that you created your page by demanding its link in the Sandbox (rev 2013, now overwritten). Probably this means that you have not linked to it from any other page.

Think of it this way: If there is strictly no $n$Lab page that points to your new page, then the new page is physically disconnected from the nLab. Moreover, if there is really no page that should point to your new page, then it is also intellectually disconnected from the rest of the nLab. Neither ought to be the case.

So whenever you feel the need for a new page, try to think of at least one (better more than one) existing pages to should point to it, and then make them point to it.

• CommentRowNumber5.
• CommentAuthorPaoloPerrone
• CommentTimeJun 5th 2020

In terms of type theory, whenever you declare a page, you should also give a constructor :)

• CommentRowNumber6.
• CommentAuthorUrs
• CommentTimeJun 7th 2020
• (edited Jun 7th 2020)

Maybe Fosco isn’t reading here? Hm.

I have removed the capitalization of the entry title, to conform to our established naming convention. And I have added the missing hyperlink on “category theory”, so that at least that link back exists.

I still suggest that this entry ought to be linked to from somewhere, and that the canonical place would be the References-section at category theory. It would make sense to create a subsection “Further resources” there, and have it include a line like:

  See also the list of _[[networks of category theorists]]_


I won’t do this myself, but I’d urge anyone who cares about the list of networks to consider this, in order to do justice both to the spirit of the $n$Lab but also to the creation of the list itself. Otherwise I am reminded of that tree which falls in a forest with nobody around to see it.

Finally, regarding Paolo’s joke in #5 I notice that this is not that far from the truth:

The closest there is in Instiki, for ordinary users, to delete an entry is to make it “orphaned” by removing all links to it. There is a garbage-collection command in the Instiki installation, which can be run by admins (never has yet, but could some day), and that command deletes all the files corresponding to pages that are orphaned, in this sense.

• CommentRowNumber7.
• CommentAuthorTim_Porter
• CommentTimeJun 7th 2020

I have added in such a link in the hope that it might be useful.

• CommentRowNumber8.
• CommentAuthorPaoloPerrone
• CommentTimeJun 7th 2020

I don’t really know what this page is for, but adding the Zulip chat would probably fit.

• CommentRowNumber9.
• CommentAuthorDavid_Corfield
• CommentTimeJun 8th 2020
• (edited Jun 8th 2020)

Since the page claims the order is strictly alphabetical, I put ACT first.

Forming a numbered list using the device of writing 1. before each entry will mean people don’t have to renumber every time.

Would it perhaps be too self-referential to add the nLab as a network/community?

• CommentRowNumber10.
• CommentAuthorTim_Porter
• CommentTimeJun 8th 2020

I think adding the n-Lab as a community would be a a neat self-referential entry!!!

• CommentRowNumber11.
• CommentAuthorPaoloPerrone
• CommentTimeJun 8th 2020

Agreed! Together with the nForum and the nCafé.

• CommentRowNumber12.
• CommentAuthorUrs
• CommentTimeAug 6th 2020

• CommentRowNumber13.
• CommentAuthorUrs
• CommentTimeAug 6th 2020
• (edited Aug 6th 2020)

I have tried to harmonize the formatting of all items, such that the hyperlinked arcronym goes first, with the description following.

• CommentRowNumber14.
• CommentAuthorUrs
• CommentTimeAug 21st 2020

added pointer to the Math-Phys-Cat-page here on the nLab