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Re: [Coq-Club] Suggestions for Proof General?


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  • From: Pierre Courtieu <pierre.courtieu AT gmail.com>
  • To: Coq Club <coq-club AT inria.fr>
  • Subject: Re: [Coq-Club] Suggestions for Proof General?
  • Date: Thu, 23 Jun 2016 22:27:56 +0200
  • Authentication-results: mail2-smtp-roc.national.inria.fr; spf=None smtp.pra=pierre.courtieu AT gmail.com; spf=Pass smtp.mailfrom=pierre.courtieu AT gmail.com; spf=None smtp.helo=postmaster AT mail-lf0-f54.google.com
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I don't know, I think most of regular users's large goals are of the form
...
======
P1 ->
P2 ->
...

Pn ->
P

and in this case isn't P what people want to see?
Well... At least ssreflect users may want this option set by defaut since P1 is the "active" hypothesis.

P.





2016-06-23 17:54 GMT+02:00 Clément Pit--Claudel <clement.pit AT gmail.com>:
👏 Thanks Pierre!
Should we enable this by default?

On 2016-06-23 11:47, Pierre Courtieu wrote:
> Done in trunk.
>
> (setq coq-prefer-top-of-conclusion t)
>
> should do it.
>
> Best,
> P.
>
> 2016-06-23 17:04 GMT+02:00 John Wiegley <johnw AT newartisans.com <mailto:johnw AT newartisans.com>>:
>
>     >>>>> Pierre Courtieu <pierre.courtieu AT gmail.com <mailto:pierre.courtieu AT gmail.com>> writes:
>
>     > When the goal is large, PG displays as much as possible of the goal, with an
>     > order of precedence: - prefer conclusion over hyps (1) - prefer bottom of
>     > the conclusion over its top (2)
>     >
>     > This is rather empirical setting. (1) is hardly questionable imho, but (2)
>     > is indeed arbitrary. I can maybe have an option for (2).
>
>     An option for (2) would be very helpful. I'm working with MIT's Fiat system,
>     which involves proofs that refine monadic, non-deterministic blocks "action by
>     action", from top to bottom, so knowing the bottom of the conclusion without
>     seeing the top is relatively useless.
>
>     Thanks,
>     --
>     John Wiegley                  GPG fingerprint = 4710 CF98 AF9B 327B B80F
>     http://newartisans.com                          60E1 46C4 BD1A 7AC1 4BA2
>
>





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