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Re: [Coq-Club] field_simplify for radicals

From: Laurent Thery <Laurent.Thery AT inria.fr>
To: coq-club AT inria.fr
Subject: Re: [Coq-Club] field_simplify for radicals
Date: Thu, 6 Jun 2019 21:31:05 +0200
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On 6/6/19 7:07 PM, Robert R wrote:
> But doesn't it know that /y = x by my second hint?

You are right! Unfortunately the equations you can add to the field
are restricted to ring equations. No / is allowed or more precisely (/
...) will be abstract as a new variable!

For example, this will not work.

Goal forall x y, x = / y -> x * y = 1.
intros x y H.
field_simplify [H].

Hope this helps understanding what is going on

--
Laurent

[Coq-Club] field_simplify for radicals, Robert Rand, 06/04/2019
- Re: [Coq-Club] field_simplify for radicals, Laurent Thery, 06/05/2019
  - Re: [Coq-Club] field_simplify for radicals, Laurent Thery, 06/05/2019
    - Re: [Coq-Club] field_simplify for radicals, Robert Rand, 06/06/2019
      - Re: [Coq-Club] field_simplify for radicals, Laurent Thery, 06/06/2019
        
        Re: [Coq-Club] field_simplify for radicals, Robert R, 06/06/2019
        
        Re: [Coq-Club] field_simplify for radicals, Laurent Thery, 06/06/2019
        
        Re: [Coq-Club] field_simplify for radicals, Robert Rand, 06/06/2019