categories - Category Theory list
 help / color / mirror / Atom feed
From: John Baez <baez@math.ucr.edu>
Cc: categories <categories@mta.ca>
Subject: Re: Functionally complete/universal basis for graph homomorphisms?
Date: Sat, 30 Sep 2017 11:25:24 -0700	[thread overview]
Message-ID: <E1dyfOB-0006em-UQ@mlist.mta.ca> (raw)
In-Reply-To: <E1dyLw8-0001T6-JC@mlist.mta.ca>

[-- Attachment #1: Type: text/plain, Size: 494 bytes --]

I will under the CATLIST and at this point not reply more in detail, but
>
let me just now say that your "categories are not algebraic in sets, at
> least they are algebraic in graphs, which in turn are algebraic in sets"
> is within the realm of "algebraic categories".
>

That depends on your definition of "algebraic categories".  There are a
number
of inequivalent definitions in common use:

https://ncatlab.org/nlab/show/algebraic+category

What definition are you using above?

Best,
jb

[-- Attachment #2: Type: text/html, Size: 1279 bytes --]

  reply	other threads:[~2017-09-30 18:25 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-26  4:17 Mike Stay
2017-09-26 16:49 ` Gershom B
2017-09-27  4:28 ` Patrik Eklund
2017-09-28  5:50   ` Vaughan Pratt
2017-09-30  8:18     ` Patrik Eklund
2017-09-30 18:25       ` John Baez [this message]
2017-10-02  3:58     ` Vaughan Pratt
2017-09-27 21:26 ` Mike Stay
2017-09-28 21:18   ` John Baez

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=E1dyfOB-0006em-UQ@mlist.mta.ca \
    --to=baez@math.ucr.edu \
    --cc=categories@mta.ca \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).