The Coq mailing list

[Thorsten Altenkirch <Thorsten.Altenkirch AT nottingham.ac.uk>]

Yes, indeed. Functions without extensionality are like bread without butter. :-)

Thorsten

From: <coq-club-request AT inria.fr> on behalf of Jason Gross <jasongross9 AT gmail.com>
Reply-To: "coq-club AT inria.fr" <coq-club AT inria.fr>
Date: Monday, 12 September 2016 21:48
To: "coq-club AT inria.fr" <coq-club AT inria.fr>
Subject: Re: [Coq-Club] UIP and decidable equality

Thorsten, your proof requires function extensionality, right?

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