#15919: Notation S[i] for i-th element of enumerated set S conflicts with 
notation
R[x] for polynomial ring
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       Reporter:  darij              |        Owner:
           Type:  defect             |       Status:  needs_review
       Priority:  major              |    Milestone:  sage-6.2
      Component:  algebra            |   Resolution:
       Keywords:  notation,          |    Merged in:
  algebra, polynomial                |    Reviewers:
        Authors:                     |  Work issues:
Report Upstream:  N/A                |       Commit:
         Branch:                     |  79d469861431ac8d6be5ad4edeace1c6ac8a62c8
  u/tscrim/ticket/15919              |     Stopgaps:
   Dependencies:                     |
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Comment (by nthiery):

 Replying to [comment:17 tscrim]:
 > (Much) More of me says this change to `InstanceTester.some_elements()`
 is significantly better (and might even be faster for things that are hard
 to repeatably iterate over like crystals) than loosing the possibility
 that (over enough repeated tests) we get "most" elements of a very large
 finite set (and without calculating `__len__()`, which also might be
 expensive or error catching). So I'm saying let's make this change, the
 question is where. I'd be happy doing it right here.

 Ok, glad to see we are on the same line. I have created #16244 for
 just this piece. I'll push my little change there later.

 > I'd say the problem with `ZZ` is that it is not in the correct category,
 which is now #16239. I've also made some very minor doctweaks, so I'm
 pos_rev with the current state (up to where to make the change above).

 Ok, I am happy with your change. So I guess this can be positive reviewed.
 There remains to update the description of this ticket to better reflect
 what has actually been done, and refer to the other ticket for the actual
 solution of the original issue.

--
Ticket URL: <http://trac.sagemath.org/ticket/15919#comment:19>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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