#20660: Add Certificate to is_isomorphic() in the matroids package
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       Reporter:  tara               |        Owner:
           Type:  enhancement        |       Status:  new
       Priority:  major              |    Milestone:  sage-7.3
      Component:  matroid theory     |   Resolution:
       Keywords:  matroid,           |    Merged in:
  isomorphism                        |    Reviewers:
        Authors:                     |  Work issues:
Report Upstream:  N/A                |       Commit:
         Branch:                     |  4ee8641a27d6ac2492f0233c057754af7acfc99f
  public/ticket/20660                |     Stopgaps:
   Dependencies:                     |
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Comment (by Stefan):

 If you're calling another instance of the is_isomorphic method, you should
 pass through all parameters. So the line you quote needs to be changed to

 {{{
 if not isinstance(other, BasisMatroid):
     return BasisExchangeMatroid._is_isomorphic(self, other, cert)
 }}}

--
Ticket URL: <http://trac.sagemath.org/ticket/20660#comment:5>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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