#15192: add is_unit() for residue fields
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       Reporter:  saraedum                 |        Owner:
           Type:  enhancement              |       Status:  needs_review
       Priority:  trivial                  |    Milestone:  sage-6.0
      Component:  categories               |   Resolution:
       Keywords:                           |    Merged in:
        Authors:  Julian Rueth             |    Reviewers:
Report Upstream:  N/A                      |  Work issues:
         Branch:  u/saraedum/ticket/15192  |       Commit:
   Dependencies:                           |     Stopgaps:
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Comment (by pbruin):

 Replying to [comment:8 saraedum]:
 > Does trac send out another email when I edit this?
 No, it doesn't. :-)

 > Anyway, I'm confused. I'm actually not sure what `ElementMethods` are
 good for so I'd rather continue this discussion on sage-devel if you don't
 mind. Can I just post what you wrote there? Or maybe it is less confusing
 if you do?
 Sure, I'd be happy if more people gave their opinion on this, and if
 someone who knows more about the category framework (maybe one of the
 authors) could explain the reason for `ElementMethods`.

 I can post a message to sage-devel, but won't have a lot of time to write
 more.

--
Ticket URL: <http://trac.sagemath.org/ticket/15192#comment:10>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
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