Re: [isabelle-dev] buildall inconsistency

2016-03-01 Thread Jose Divasón
Dear all, Thanks Manuel for your changes about euclidean rings! Jesús Aransay and I are now introducing a few changes in the Echelon_Form development. In addition, we are also polishing the code. We hope to finish it in the following days. Cheers, Jose 2016-02-28 21:29 GMT+01:00 Manuel Eberl

Re: [isabelle-dev] code abbreviation for mapping over a fixed range

2015-11-12 Thread Jose Divasón
Hi Bertram, Christian and Bertram, I would like to put my two cents in this topic. I have done a simple experiment about this using my AFP entry about the QR decomposition, where a strong use of map_range is done. With the current map_range definition, the computation of the QR decomposition of

Re: [isabelle-dev] Algebra and number theory in Isabelle/HOL

2014-11-12 Thread Jose Divasón
Hello Florian. This work sounds very interesting. Just a few comments: * Take care about the names of the algebraic structures. By PIR (principal ideal ring) some authors mean a commutative ring with identity in which every ideal is principal, using the name PID (principal ideal domain) for