On 5/16/07, Michel <[EMAIL PROTECTED]> wrote:
>
> Rather than implementing subs/substitute in every class where it makes
> sense
> (polynomials/rational functions/non-commutative polynomials) I thought
> it makes
> more sense to move it up to sage/structure/element. Here is a patch
> illustrating the concept.
> Martin/William: do you think this is a good approach?

Yes, definitely.  It's very sensible in my opinion.

 -- William

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