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Category Theory

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a place to discuss category theory, both applied and theoretical, and any other related things | part of the +mathematics:matrix.org community5 Servers

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4 Feb 2020
14:08:51@joel135:matrix.orgJoel Sjögren Christian Bertram: If you look into topos theory there is a notion of covering sieve. It is related to your question since the set of all x : X -> A is a covering sieve on A by an axiom called T3.
19:43:48@cbertram:matrix.orgChristian BertramOkay, thanks for clarifying :) I am not yet able to really understand what I can read about covering sieves, but nice to know. I will try to remember it, for when I get closer to that theory.
19 Feb 2020
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21 Feb 2020
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2 Mar 2020
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13 Mar 2020
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17 Mar 2020
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21 Mar 2020
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24 Mar 2020
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23:55:30@thosgood:matrix.orgTimso there's a new zulip chat room for category theory, in case y'all haven't heard https://categorytheory.zulipchat.com/
23:55:50@thosgood:matrix.orgTimi'm gonna look at setting up a bridge between that room and this, so that people don't have to move over to zulip if they still want to interact
25 Mar 2020
00:13:49@chexxor:matrix.orgchexxor
In reply to @thosgood:matrix.org
so there's a new zulip chat room for category theory, in case y'all haven't heard https://categorytheory.zulipchat.com/
"You need an invitation to join this organization"
00:14:32@thosgood:matrix.orgTimhuh, try following the link from
00:14:42@thosgood:matrix.orgTimhttps://twitter.com/julesh/status/1242141831057616896
00:14:53@thosgood:matrix.orgTim * huh, try following the link from
00:19:58@chexxor:matrix.orgchexxorThat worked. Must be an invite code in that link.
00:20:25@thosgood:matrix.orgTimah ok, good to know!
27 Mar 2020
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28 Mar 2020
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31 Mar 2020
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1 Apr 2020
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4 Apr 2020
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6 Apr 2020
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