[isabelle-dev] Old_Number_Theory

Lawrence Paulson lp15 at cam.ac.uk
Tue Oct 18 13:27:19 CEST 2016

That is great news!

It’s a pity that our coverage of number theory is minuscule compared with what we have for analysis. I blame John Harrison :-)


> On 18 Oct 2016, at 12:11, Manuel Eberl <eberlm at in.tum.de> wrote:
> I am glad to announce that as of 261d42f0bfac, Old_Number_Theory is finally history.
> A lot of the proofs are still quite messy and don't take advantage of the new features we now have in Number_Theory (such as a uniform concept of ‘primes’ and ‘prime factorisations’ for both nat and int), but I do not think the work necessary to achieve that is worth it.
> The vast majority of the porting work was done by a student of ours, Jaime Mendizabal Roche, so big thanks to him. He even extended the ‘two squares’ AFP entry a bit, showing the converse direction as well.
> Cheers,
> Manuel
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