Discussion of Homotopy Type Theory and Univalent Foundations
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From: Michael Shulman <shulman@sandiego.edu>
To: Peter LeFanu Lumsdaine <p.l.lumsdaine@gmail.com>
Cc: Ulrik Buchholtz <ulrikbuchholtz@gmail.com>,
	HomotopyTypeTheory@googlegroups.com
Subject: Re: [HoTT] Re: Precategories, Categories and Univalent categories
Date: Wed, 7 Nov 2018 12:01:29 -0800	[thread overview]
Message-ID: <CAOvivQwRKWaYr-UB9v0cxW0G9169CnwfGa4zq920HDaHBmpi-w@mail.gmail.com> (raw)
In-Reply-To: <CAOvivQyG1q9=3YoS8hX3bRQK0yi+mpBnJu+rqb3oon0uPLpZ4A@mail.gmail.com>

On Wed, Nov 7, 2018 at 7:55 AM Michael Shulman <shulman@sandiego.edu> wrote:
> I doubt there is *any*
> choice of terminology for plain MLTT without UA *or* UIP that is
> sensible in that it can be specialized to the right terminology upon
> the addition of either of these two inconsistent axioms.

Well, with tongue slightly in cheek, here is one such definition: a
category is a precategory C such that (if UA holds then C is
univalent).  (-:

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  parent reply	other threads:[~2018-11-07 20:01 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-07 10:03 [HoTT] " Ali Caglayan
2018-11-07 10:31 ` [HoTT] " Paolo Capriotti
2018-11-07 10:35 ` Ulrik Buchholtz
2018-11-07 10:37   ` Ulrik Buchholtz
2018-11-07 11:09   ` Peter LeFanu Lumsdaine
2018-11-07 11:43     ` Ulrik Buchholtz
2018-11-07 11:50       ` Erik Palmgren
2018-11-07 11:51       ` Ulrik Buchholtz
2018-11-07 12:03         ` Erik Palmgren
2018-11-07 12:21           ` Martín Hötzel Escardó
2018-11-07 13:00             ` Erik Palmgren
2018-11-07 13:02             ` Bas Spitters
2018-11-07 13:47               ` Ali Caglayan
2018-11-07 13:53               ` Thomas Streicher
2018-11-07 14:05                 ` Thorsten Altenkirch
2018-11-07 13:58       ` Thorsten Altenkirch
2018-11-07 14:14         ` Ulrik Buchholtz
2018-11-07 14:27           ` Peter LeFanu Lumsdaine
     [not found]             ` <CAOvivQyG1q9=3YoS8hX3bRQK0yi+mpBnJu+rqb3oon0uPLpZ4A@mail.gmail.com>
2018-11-07 20:01               ` Michael Shulman [this message]
2018-11-08 21:37               ` Martín Hötzel Escardó
2018-11-08 21:43                 ` Michael Shulman
2018-11-09  4:43                   ` Andrew Polonsky
2018-11-09 10:18                     ` Ulrik Buchholtz
2018-11-09 10:57                       ` Paolo Capriotti
2018-11-07 14:31           ` Thorsten Altenkirch
2018-11-07 14:05       ` Peter LeFanu Lumsdaine
2018-11-07 14:28         ` Ulrik Buchholtz
2018-11-07 15:35           ` Thomas Streicher
2018-11-07 16:54             ` Thorsten Altenkirch
2018-11-07 16:56               ` Thorsten Altenkirch
2018-11-07 17:31                 ` Eric Finster
2018-11-08 11:58               ` Thomas Streicher
2018-11-08 12:23                 ` [HoTT] " Emily Riehl
2018-11-08 12:28                   ` Emily Riehl
2018-11-08 14:01                     ` Thomas Streicher
2018-11-08 16:10                   ` Thomas Streicher
2018-11-08 14:38                 ` [HoTT] " Michael Shulman
2018-11-08 21:08                   ` Thomas Streicher
2018-11-08 21:30                     ` Michael Shulman
2018-11-09 11:56                       ` Thomas Streicher
2018-11-09 13:46                         ` Michael Shulman
2018-11-09 15:06                           ` Thomas Streicher
2018-11-08 16:01                 ` Thorsten Altenkirch
2018-11-08 19:39                   ` Thorsten Altenkirch
2018-11-07 20:00         ` Michael Shulman
2018-11-08 21:35 ` Martín Hötzel Escardó

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