(News items by David Aspinall)
Proof General 3.0 is currently in final testing, and will be released in a small number of days. Please help me with this by testing the current pre-release, so I can iron out as many bugs as possible before making the release. It's very easy to install or upgrade Proof General, so it shouldn't be much effort to test it quickly. Particularly if you're already running an earlier version.
New! With Proof General 3.0, adapting to a new prover is easier than ever before! It includes an of Proof General for Isabelle, which configures the main core of the interface with less than 30 lines of code. Not bad for getting about 4000 lines worth of code in benefit!
Isabelle 99 was released last week, and Proof General 3.0 should be ready for release in the next week or so. In the meantime, please use the current pre-release for Isabelle 99.
Some recent changes have been made to the support for X-symbol, so that it is easier to turn on and off, and support is now properly generic. At the moment only Isabelle has support implemented.
See what Proof General 3.0 will look like! The screenshot has been updated.
The next version of Proof General will be 3.0.
There have been significant changes to the core of Proof General and many improvements in the code. Extra features have been added, and the ones already there improved upon. Usability has been a particular focus. Adding new provers has been made easier. Installation will be made even easier. All of these changes warrant moving to a major release!
Version 3.0 is planned for release in November. Please test a Version 3.0 pre-release if you can and report any problems.
I'm very grateful to
Pierre Courtieu <courtieu@lri.fr>
for offering to help work on Coq Proof General.
If anyone else in the Coq community would like to assist, please
offer still,
there is plenty to do to add: better recognition of proof scripts,
multiple file management, proof by pointing, etc...
Recently there has been a flurry of work on the next version of Proof
General. It has quite a number of improvements (see the file), made by myself
and Markus Wenzel.
The next version is aimed to coincide
roughly with the release of Isabelle 99.
At the moment we urgently need somebody from the Coq world to maintain and improve Coq Proof General, since Patrick Loiseleur can no longer work on it. Support from the Coq community is vital for Proof General to be a useful tool there. Please offer to help, it needn't be a heavy commitment.
I've just returned from the
Types Summer School, Giens, France
where Proof General was used for a class of
about 50 students who were learning
Coq, Isabelle, and LEGO. I received
many useful comments and feedback,
which will be
used to improve the next version.
Thanks to everyone who gave suggestions and bug reports
to me, including:
Michael Abbott,
Bernd Grobauer,
Sebastian Skalberg,
Thierry Massart,
Darmalingum Muthiayen.
Print pictures from the new gallery of publicity shots of Proof General!
Proof General version 2.1 is released.
Check the file
for a summary of changes since Proof General 2.0.
It is recommended that all users upgrade except
those still using Isabelle 98-1.
Proof General 2.1 supports only the 99 version of Isabelle.
New Proof General web pages go live!
The general is now more serious looking. Appropriate, because there are some serious improvements in the pipeline... Before that, we will release Proof General 2.1, mainly a bug-fix improvement of 2.0.
Please explore the new web pages and report any problems or suggestions to . Please also try out the latest pre-release of Proof General, this is the final chance to get fixes and tweaks sorted before 2.1.
A new instantiation of Proof General has been added by Paul Callaghan for Plastic, a new proof assistant based on Luo's Typed Logical Framework and implemented in Haskell.
A new instantiation of Proof General has been added by Markus Wenzel for Isabelle/Isar, a new proof language for Isabelle to be included with Isabelle 99.