Category Theory
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Stream: community: general

Topic: swimming turtles


view this post on Zulip Welcome Bot (Mar 23 2020 at 16:57):

This is a message on stream #general with the topic swimming turtles.

Start a new topic any time you're not replying to a previous message.

view this post on Zulip Stelios Tsampas (Mar 23 2020 at 17:00):

Σ:SetsSets \Sigma : \textbf{Sets} \rightarrow \textbf{Sets} lifts to Σˉ:Kl(P)Kl(P) \bar{\Sigma} : Kl(\mathcal{P}) \rightarrow Kl(\mathcal{P}) through λ:ΣPPΣ \lambda : \Sigma \mathcal{P} \Rightarrow \mathcal{P} \Sigma as long as λ\lambda satisfies two additional criteria (associativity and identity). Liftings are awesome!

view this post on Zulip Jules Hedges (Mar 23 2020 at 17:02):

\[ \begin{tikzcd} A \ar[r] \ar[d] & B \ar[d] \\ C \ar[r] & D \end{tikzcd} \]

view this post on Zulip Jules Hedges (Mar 23 2020 at 17:02):

Was a nice try

view this post on Zulip Stelios Tsampas (Mar 23 2020 at 17:02):

Zulip supporting tikzcd would have been quite epic...

view this post on Zulip Christian Williams (Mar 23 2020 at 17:03):

I know right. but go to: chat.zulip.org and join the development team.

view this post on Zulip Christian Williams (Mar 23 2020 at 17:03):

apparently they have the largest/most active open-source community for a chat server

view this post on Zulip Christian Williams (Mar 23 2020 at 17:03):

ah, so mathmode is double dollar sign.

view this post on Zulip Jonathan Beardsley (Mar 26 2020 at 01:38):

is this a place to put messages we want to have "disappear?"

view this post on Zulip Stelios Tsampas (Mar 26 2020 at 01:39):

I think it was one of the automatic "sample" topics to introduce the functionality.

view this post on Zulip Jonathan Beardsley (Mar 26 2020 at 01:41):

Yeah so it seems. I'm just wondering how it got messages posted in it, haha. Maybe people were just messing around.

view this post on Zulip Stelios Tsampas (Mar 26 2020 at 01:42):

Oh we were just messing about at the very beginning of this zulip, trying to learn the ropes :).