[isabelle-dev] New AFP entry Gromov Hyperbolicity in devel

2018-01-17 Thread Tobias Nipkow
We have a new AFP entry in the development branch of the AFP: Gromov Hyperbolicity Sebastien Gouezel A geodesic metric space is Gromov hyperbolic if all its geodesic triangles are thin, i.e., every side is contained in a fixed thickening of the two other sides. While this definition looks inno

[isabelle-dev] Gromov Hyperbolicity

2018-01-17 Thread Tobias Nipkow
For those of you interested in formalization of Analysis https://devel.isa-afp.org/entries/Gromov_Hyperbolicity.html I would like to call your attention to this entry because it is rich in concepts and theorems that are more general than the actual focus of the article. I believe quite a bit o

Re: [isabelle-dev] NEWS: op -> ()

2018-01-17 Thread Tobias Nipkow
Thanks for this discussion. Although I agree with Larry and Andreas, it is clear that there is no concensus. Hence there will be no blanket change of where line breaks go for infix operators. Tobias On 16/01/2018 17:34, Blanchette, J.C. wrote: This sort of claim needs to be justified by evi