Excellent! The "f.lift" command is exactly what i am looking for.
Thanks for your help, Martin.
Alex
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On Monday 30 June 2008, Alex Raichev wrote:
> Dear Sage support:
>
> Hilbert's Nullstellensatz states that a system of polynomial
> equations f_1(x) = 0,..., f_s (x) = 0, where f_i in K[x_1,..., x_n ]
> and K is an algebraically closed field, has no solution in K^n if and
> only if there exist po
