#15919: unrank via R[i] conflicts with notation for constructing polynomial 
rings
in CartesianProduct
-------------------------------------+-------------------------------------
       Reporter:  darij              |        Owner:
           Type:  defect             |       Status:  positive_review
       Priority:  major              |    Milestone:  sage-6.2
      Component:  algebra            |   Resolution:
       Keywords:  notation,          |    Merged in:
  algebra, polynomial                |    Reviewers:  Travis Scrimshaw
        Authors:  Nicolas M. ThiƩry  |  Work issues:
Report Upstream:  N/A                |       Commit:
         Branch:                     |  79d469861431ac8d6be5ad4edeace1c6ac8a62c8
  u/tscrim/ticket/15919              |     Stopgaps:
   Dependencies:                     |
-------------------------------------+-------------------------------------

Comment (by nthiery):

 Replying to [comment:25 darij]:
 > I am not suggesting to go against correctness!

 Oops, sorry if my wording involuntarily implied this :-) I just meant
 that I was ready paying a little speed overhead as a price for a
 solution of the problem. And I agree the problem worked on this ticket
 (being cleaner with unrank versus `__getitem__`) has deviated from the
 original one. Not so bad since I believe this + #16244 fixes
 reasonably the original problem.

 Unless someone raises an objection now, this is good to go!

 Thanks to both of you.

--
Ticket URL: <http://trac.sagemath.org/ticket/15919#comment:26>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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