#16239: ZZ in the wrong category
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       Reporter:  tscrim             |        Owner:  sage-combinat
           Type:  defect             |       Status:  needs_review
       Priority:  major              |    Milestone:  sage-6.3
      Component:  categories         |   Resolution:
       Keywords:  integer ring,      |    Merged in:
  category                           |    Reviewers:
        Authors:  Travis Scrimshaw   |  Work issues:
Report Upstream:  N/A                |       Commit:
         Branch:                     |  1b4b7c61d7a6b1c578be283613bf9cc63c7f9b28
  public/categories/fix_ZZ-16239     |     Stopgaps:
   Dependencies:                     |
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Comment (by nbruin):

 Replying to [comment:11 tscrim]:
 > Plus if we ignore this, we could make a category for char 0 fields,
 which IMO is a useful distinction and we make as a join `Fields() &
 Sets().Infinite()`
 ??? Infinite fields are not necessarily of characteristic zero, see for
 instance `FieldOfFractions(GF(q)['t'])`.

 It could be something like `Fields() & AssociativeAlgebras(QQ)`, although
 implementation dictates we should avoid referencing parametrized bases for
 categories whenever possible (this case wouldn't be so bad, since QQ just
 a single object. It's when characteristic p fields are made as `Fields() &
 AssociativeAlgebras(GF(p))` that we have a problem.)

--
Ticket URL: <http://trac.sagemath.org/ticket/16239#comment:13>
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