> Concerning PolynomialCategoryLifting, the change looks OK.  Are there
> other changes that you want to commit?

Ooops. I forgot to send the link again.

https://github.com/hemmecke/fricas/commits/poly

There are commits listed from 18-Dec-2015 concerning generalization of
Groebner(Internal)Package.

That is in connection with making totalDegree an optional export and the
problems with that.

See
https://www.mail-archive.com/[email protected]/msg08830.html
as the related thread.

Of course, I would prepare properly formatted patches if you think that
it is worth to be included into FriCAS.

In short (if I remember correctly) there are a couple of things

1)
make totalDegree optional in FreeModuleCategory and remove
the definition from GeneralDistributedMultivariatePolynomial.
The "rewrite totalDegree" commit was necessary because I had
problems with the compilation of the

  "max"/[reduce("+", s::V, 0) for s in support p]

line.

2)
Remove VarSet from Groebner(Internal)Package and the commit
"Groebner(Internal)Package without VarSet" modifies the other respective
algebra files that depend on the Groebner package.

3)
gbasisExtend is not really necessary, but I had locally a problem where
I knew that my input polynomials were already a Groebner basis wrt the
given order and I wanted to extend this GB by more polynomials. It
would, of course, be unnecessary to recomputed the initial list of
S-polynomials of the known GB-polynomials, because it's just a waste of
time to let them again reduce to zero. The change was simple enough and
I did not (yet) make it publicly visible in GroebnerPackage, but only in
GroebnerInternalPackage.

4)
Remov SetCategory from POLYLIFT.

Hope that helps.
Ralf

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