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Re: [Coq-Club] Equality for inductive type containing list


Chronological Thread 
  • From: Pierre-Marie Pédrot <pierre-marie.pedrot AT inria.fr>
  • To: coq-club AT inria.fr
  • Subject: Re: [Coq-Club] Equality for inductive type containing list
  • Date: Thu, 6 Oct 2016 18:18:09 +0200

On 06/10/2016 17:08, Pierre Courtieu wrote:
> The default inductive principles for mutual are dumb and I don't
> understand why we keep on generating it.

Quite true. I know this has been discussed privately between some core
devs at some point, but I don't remember the result. I'd bet on: "this
breaks compatibility"!

> But the ones defined by Scheme...with... . are reasonable. Mimicking
> on nested inductives what Scheme does for mutual would be a very good
> approximation. Won't it?

You're actually right. I'll have a look to check if that is easy to
generate the proper induction this way.

PMP

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