#16508: Add Commutative graded differential algebras.
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       Reporter:  mmarco             |        Owner:
           Type:  enhancement        |       Status:  needs_review
       Priority:  major              |    Milestone:  sage-6.3
      Component:  algebra            |   Resolution:
       Keywords:  sd58, algebras,    |    Merged in:
  nonconmutative, graded             |    Reviewers:
        Authors:  mmarco             |  Work issues:
Report Upstream:  N/A                |       Commit:
         Branch:                     |  6a80cf5faaa4f1318f455969c9e0c8aa0d3092f1
  u/mmarco/ticket/16508              |     Stopgaps:
   Dependencies:                     |
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Comment (by jhpalmieri):

 I like the fact that the branch here uses `QuotientRing_nc`, which mine
 doesn't do. On the other hand, I think that a differential graded algebra
 should be endowed with a differential: the differential should not be a
 separate piece of structure.

--
Ticket URL: <http://trac.sagemath.org/ticket/16508#comment:7>
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