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Re: [Coq-Club] Speeding up inversion on large inductives


Chronological Thread 
  • From: Petar Maksimovic <petar.maksimovic AT gmail.com>
  • To: coq-club AT inria.fr
  • Subject: Re: [Coq-Club] Speeding up inversion on large inductives
  • Date: Wed, 9 Sep 2015 16:57:18 +0200
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Hi Xavier - that's a good idea, and I have already tried to adapt the
work of Monin and Shi, but I was unable to automate the generation of
their principles, and writing them by hand for each of the
constructors wasn't an option.

Cheers,
Petar

On 9 September 2015 at 16:46, Xavier Leroy
<xavier.leroy AT inria.fr>
wrote:
>> 2015-09-07 16:58 GMT+02:00 Petar Maksimovic
>> <petar.maksimovic AT gmail.com
>> <mailto:petar.maksimovic AT gmail.com>>:
>>
>> Hello everyone,
>>
>> I'm working on a development where there's an inductive type with 400+
>> constructors. Recently, it has become necessary to invert on it
>> regularly, and this takes an exceedingly long time.
>>
>
> You might be interested in the work of Monin and Shi on "small inversions":
> http://www-verimag.imag.fr/~monin/Proof/SmallInvScalesUp/paper.pdf
> I'm not sure their approach solves your problems, but it could help.
>
> On 08/09/2015 09:43, Cedric Auger wrote:
>> I am curious of what would lead to such a big inductive type.
>
> One example: full modeling of the instruction set of a modern processor
> architecture. ARMv7 has 413 instructions, and don't get me
> started about ARMv8...
>
> - Xavier Leroy



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