Martin R wrote:
> 
> >
> > Let me add that EuclideanDomain is a nice example of things 
> > going wrong: probably more than half of uses in original code 
> > were bugs.  Several such buggy uses are now removed but I still 
> > work on removing some other... 
> >
> 
> I'd be very interested in a concrete example!

Well, in ComplexCategory asserting EuclideanDomain is a lie (true
only in very special cases).  Uses in multfact.spad and multsqr.spad
are mostly bogus (code should be written in way that works without
using functions from EuclideanDomain).  For removed cases see past
diffs.  In particular EuclideanDomain was uses in many places
where PolynomialFactorizationExplicit should be used.

-- 
                              Waldek Hebisch

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