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- From: Jason Gross <jasongross9 AT gmail.com>
- To: coq-club AT inria.fr
- Subject: [Coq-Club] Inaccurate [Print Universes]?
- Date: Mon, 25 Jun 2012 22:44:41 -0400
Hi,
Is it possible for [Print Universes] to be wrong? In my development, after a certain definition (which goes through fine and doesn't give me universe inconsistency errors), if I [Print Universes], I see, among other things,
Category.3 = Category.2
Category.2 < Coq.Init.Logic.17
< Category.31
<= Coq.Init.Specif.3
<= Coq.Init.Logic.4
<= Coq.Init.Specif.5
<= Category.34
<= Coq.Init.Datatypes.39
<= Coq.Init.Datatypes.40
<= Coq.Init.Logic.166
<= Category.1826
<= Coq.Logic.FunctionalExtensionality.16
<= Coq.Init.Logic.74
<= Coq.Init.Logic.75
<= Coq.Init.Logic.76
<= NaturalTransformation.15
<= Coq.Logic.FunctionalExtensionality.15
<= Category.3
<= Coq.Logic.JMeq.65
<= Functor.23
<= Coq.Logic.JMeq.1
<= Category.1838
The Category.2 < ... <= Category.3 pre-dates the relevant definition; [Print Universes] before the definition includes
Category.2 < Coq.Init.Logic.17
< Category.31
<= NaturalTransformation.15
<= Coq.Logic.FunctionalExtensionality.15
<= Category.3
<= Coq.Logic.JMeq.65
<= Functor.23
<= Coq.Logic.JMeq.1
<= Category.1838
Is this a bug in [Print Universes] or in Coq's universe consistency checker, or am I mis-reading the output of [Print Universes]?
-Jason
- [Coq-Club] Inaccurate [Print Universes]?, Jason Gross, 06/26/2012
- Re: [Coq-Club] Inaccurate [Print Universes]?, Stéphane Glondu, 06/26/2012
- Re: [Coq-Club] Inaccurate [Print Universes]?, Bruno Barras, 06/26/2012
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