Re: [isabelle-dev] HOL/ex/Set_Algebras

2012-04-18 Thread Florian Haftmann
Hi Alex, while backporting HOL/Library/Set_Algebras to use type classes again (a remaining point of the 'a set transition), thanks for doing this! I noticed that there is now a clone of that file in HOL/ex. What should we do with the clone? Are there maybe other examples that can

Re: [isabelle-dev] HOL/ex/Set_Algebras

2012-04-18 Thread Clemens Ballarin
Hi Florian, Thanks for the clarification. Its purpose might have been to make the interpretation notationally simpler. the story behind is not about syntax. It is really about the simultaneous definitions. For a motivation, you can have a look at the tutorial on code generation, section

Re: [isabelle-dev] HOL/ex/Set_Algebras

2012-04-13 Thread Clemens Ballarin
I wondered when somebody would ask this. What's going on here is a hack, and I'm not very happy about it. If you follow up the imported theory, you will find some code that provides a clone of the interpretation command (under the same name!) with some added functionality (definitions).

[isabelle-dev] HOL/ex/Set_Algebras

2012-04-12 Thread Alexander Krauss
Hi all, while backporting HOL/Library/Set_Algebras to use type classes again (a remaining point of the 'a set transition), I noticed that there is now a clone of that file in HOL/ex. The changelog says: changeset: 41581:c34415351b6d user:haftmann date:Sat Jan 15 20:05:29