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2011-07-26Ring2 devient Ncring et la reification par les type classes est partageepottier
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14298 85f007b7-540e-0410-9357-904b9bb8a0f7
2011-05-05BinInt: Z.add become the alternative Z.add'letouzey
It relies on Z.pos_sub instead of a Pos.compare followed by Pos.sub. Proofs seem to be quite easy to adapt, via some rewrite Z.pos_sub_spec. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14107 85f007b7-540e-0410-9357-904b9bb8a0f7
2011-05-05Modularization of BinPos + fixes in Stdlibletouzey
BinPos now contain a sub-module Pos, in which are placed functions like add (ex-Pplus), mul (ex-Pmult), ... and properties like add_comm, add_assoc, ... In addition to the name changes, the organisation is changed quite a lot, to try to take advantage more of the orders < and <= instead of speaking only of the comparison function. The main source of incompatibilities in scripts concerns this compare: Pos.compare is now a binary operation, expressed in terms of the ex-Pcompare which is ternary (expecting an initial comparision as 3rd arg), this ternary version being called now Pos.compare_cont. As for everything else, compatibility notations (only parsing) are provided. But notations "_ ?= _" on positive will have to be edited, since they now point to Pos.compare. We also make the sub-module Pos to be directly an OrderedType, and include results about min and max. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14098 85f007b7-540e-0410-9357-904b9bb8a0f7
2011-02-22anneaux commutatifs ou non, reification sans mlpottier
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@13848 85f007b7-540e-0410-9357-904b9bb8a0f7