From: "Martín Hötzel Escardó" <"escardo..."@gmail.com>
To: Homotopy Type Theory <HomotopyT...@googlegroups.com>
Subject: Re: Vladimir Voevodsky
Date: Sat, 14 Oct 2017 14:20:39 -0700 (PDT) [thread overview]
Message-ID: <238074f9-7688-4069-9d3a-0f4247726602@googlegroups.com> (raw)
In-Reply-To: <99076355-ec0b-40db-a88b-6ad359db99f4@googlegroups.com>
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And the last one of this thread on my historical questions to Vladimir in
2015:
On Oct 22, 2015, at 4:50 PM, Martin Escardo <m.es...@cs.bham.ac.uk> wrote:
One more question, if you don't mind, this time technical: what made
you conjecture that univalence implies function extensionality, before
you had a proof? This is a very interesting thought.
No, it was almost an accident. I started a new file in Foundations that was
supposed to contain results that depend on the UA and then I guess I
started to think whether the UA and function extensionality are independent
and came up with a proof of UA => FA.
I think it was a turning point since this is were constructivists got
really interested in the UA (and UF).
Vladimir
>
>
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prev parent reply other threads:[~2017-10-14 21:20 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-01 4:25 Daniel R. Grayson
2017-10-01 4:54 ` Daniel R. Grayson
2017-10-01 8:07 ` [HoTT] " Thomas Streicher
2017-10-01 13:18 ` Peter LeFanu Lumsdaine
2017-10-01 15:06 ` Joyal, André
2017-10-01 14:48 ` [HoTT] " Steve Awodey
2017-10-01 17:08 ` Andrei Rodin
2017-10-01 20:06 ` [HoTT] " Nicolai Kraus
2017-10-01 20:08 ` Chris Kapulkin
2017-10-02 13:20 ` Marcelo Fiore
2017-10-02 14:00 ` Andrew Polonsky
2017-10-02 15:22 ` [HoTT] " Andrej Bauer
2017-10-04 22:52 ` Martín Hötzel Escardó
2017-10-05 4:52 ` [HoTT] " Gershom B
2017-10-05 6:08 ` Timothy Carstens
2017-10-05 10:41 ` [HoTT] " Thierry Coquand
2017-10-05 13:38 ` Daniel R. Grayson
2017-10-06 5:41 ` [HoTT] " Michael Shulman
2017-10-11 15:26 ` Daniel R. Grayson
2017-10-11 17:47 ` Daniel R. Grayson
2017-10-11 19:06 ` [HoTT] " Steve Awodey
2017-10-12 19:06 ` Daniel R. Grayson
2017-10-12 19:24 ` Daniel R. Grayson
2017-10-12 21:55 ` Martín Hötzel Escardó
2017-10-12 22:21 ` [HoTT] " Michael Shulman
2017-10-14 21:12 ` Martín Hötzel Escardó
2017-10-14 21:20 ` Martín Hötzel Escardó [this message]
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