#12747: is_R_algebra is useless and wrong and should be deleted
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       Reporter:  JStarx           |         Owner:  AlexGhitza  
           Type:  defect           |        Status:  needs_review
       Priority:  minor            |     Milestone:  sage-5.0    
      Component:  algebra          |    Resolution:              
       Keywords:  algebra, all.py  |   Work issues:              
Report Upstream:  N/A              |     Reviewers:              
        Authors:  Jim Stark        |     Merged in:              
   Dependencies:                   |      Stopgaps:              
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Description changed by JStarx:

Old description:

> In algebras/all.py we find the following function:
>
> {{{
> def is_R_algebra(Q, R):
>     # TODO: do something nontrivial when morphisms are defined.
>     return True
> }}}
>
> A search of the source shows that this function is not used anywhere else
> in sage, and good thing too, cause it's obviously wrong.

New description:

 In algebras/all.py we find the following function:

 {{{
 def is_R_algebra(Q, R):
     # TODO: do something nontrivial when morphisms are defined.
     return True
 }}}

 A search of the source shows that this function is not used anywhere else
 in sage, and good thing too, cause it's obviously wrong.  The attached
 patch deletes this function.

--

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12747#comment:2>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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