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- From: Maxime Dénès <mail AT maximedenes.fr>
- To: coq-club AT inria.fr
- Subject: Re: [Coq-Club] Propositional extensionality is inconsistent in Coq
- Date: Thu, 12 Dec 2013 19:56:33 -0500
Well, yes. I think that was implicit in Daniel's original e-mail. There may be tricky details, though.
Maxime.
On 12/12/2013 07:52 PM, Robbert Krebbers wrote:
On 12/13/2013 10:23 AM, Pierre-Marie Pédrot wrote:
That's really surprising, to say the least... Is there a lot ofCannot we prove
contributions using this axiom in the wild?
(False -> False) = True
using univalence? In that case, univalence would be inconsistent with the current version of Coq, which would be quite bad.
- Re: [Coq-Club] Propositional extensionality is inconsistent in Coq, (continued)
- Re: [Coq-Club] Propositional extensionality is inconsistent in Coq, Pierre Boutillier, 12/13/2013
- Re: [Coq-Club] Propositional extensionality is inconsistent in Coq, Maxime Dénès, 12/13/2013
- Re: [Coq-Club] Propositional extensionality is inconsistent in Coq, Pierre Boutillier, 12/13/2013
- Re: [Coq-Club] Propositional extensionality is inconsistent in Coq, Arnaud Spiwack, 12/13/2013
- Re: [Coq-Club] Propositional extensionality is inconsistent in Coq, Arnaud Spiwack, 12/13/2013
- Re: [Coq-Club] Propositional extensionality is inconsistent in Coq, Viktor Vafeiadis, 12/13/2013
- Re: [Coq-Club] Propositional extensionality is inconsistent in Coq, Pierre Boutillier, 12/13/2013
- Re: [Coq-Club] Propositional extensionality is inconsistent in Coq, Christine Paulin, 12/13/2013
- Re: [Coq-Club] Propositional extensionality is inconsistent in Coq, Andreas Abel, 12/13/2013
- Re: [Coq-Club] Propositional extensionality is inconsistent in Coq, Maxime Dénès, 12/13/2013
- Re: [Coq-Club] Propositional extensionality is inconsistent in Coq, Anthony Bordg, 12/13/2013
- Re: [Coq-Club] Propositional extensionality is inconsistent in Coq, Guillaume Brunerie, 12/13/2013
- Re: [Coq-Club] Propositional extensionality is inconsistent in Coq, Arnaud Spiwack, 12/13/2013
- Re: [Coq-Club] Propositional extensionality is inconsistent in Coq, Matthieu Sozeau, 12/13/2013
- Re: [Coq-Club] Propositional extensionality is inconsistent in Coq, Jacques-Henri Jourdan, 12/13/2013
- Re: [Coq-Club] Propositional extensionality is inconsistent in Coq, AUGER Cédric, 12/14/2013
- Re: [Coq-Club] Propositional extensionality is inconsistent in Coq, Maxime Dénès, 12/14/2013
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