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From: "Zoran Škoda" <zskoda@gmail.com>
To: Andrew Pitts <andrew.pitts@cl.cam.ac.uk>
Cc: Categories <categories@mta.ca>
Subject: Re:  Sheaf terminology question
Date: Tue, 17 Jul 2018 10:48:25 +0200	[thread overview]
Message-ID: <E1ffREJ-0007GD-Ag@mlist.mta.ca> (raw)

Late Alexander L. Rosenberg used the term epipresheaf in that case; I am
not sure if he learned it somewhere or he made it up. The reasoning behind
the terminology is clear.

Zoran Škoda

On 16 Jul 2018 14:10, "Andrew Pitts" <andrew.pitts@cl.cam.ac.uk> wrote:

> Given a coverage on a small category, the condition for a Set-valued
> presheaf on the category to be a sheaf has an existence part and a
> uniqueness part. If only the uniqueness part holds, one says that the
> presheaf is separated. Is there a name out there for presheaves that only
> satisfy the existence part of the sheaf condition?
>
> Andy Pitts
>
>

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             reply	other threads:[~2018-07-17  8:48 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-17  8:48 Zoran Škoda [this message]
  -- strict thread matches above, loose matches on Subject: below --
2018-07-13 14:10 Andrew Pitts
2018-07-18  8:56 ` Andrew Pitts

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