Monthly Archives: June 2018

Isabelle, Local, PIDE

Video for Isabelle/PIDE presentation at Curry Club Augsburg

Here is the video for the Isabelle/PIDE presentation at Curry Club Augsburg from 14-Jun-2018:

There are some technical challenges: missing screen recording in the first 25min, and occasional changes in the speed of screen recording later on: sometimes the computer screen is ahead of the talk. Nonetheless, this is an opportunity to learn many things about Isabelle/PIDE, how it is done, why it is done like that.

Isabelle

Release candidates for Isabelle2018

We are heading towards the Isabelle2018 release, which is scheduled for August 2018. This spot provides a reference for upcoming release candidates.

  • Isabelle2018-RC0 (06-Jun-2018): informal snapshot for experimentation. See also AFP/7f9c8aca53e8.
  • Isabelle2018-RC1 (02-Jul-2018): first official release candidate; almost everything ready, but some documentation still needs update. See also AFP/2af750da996c.
  • Isabelle2018-RC2 (22-Jul-2018): consolidated release candidate (after attending FLoC 2018 at Oxford). See also AFP/7175b64d54a4. Notable changes:
    • Update of Poly/ML component: slightly improved performance and more robust.
    • Update of Kodkodi component for Nitpick on Windows (back to status-quo from Isabelle2017).
    • Session HOL-Real_Asymp by Manuel Eberl.
    • Further library tuning of HOL, HOL-Analysis, HOL-Algebra.
  • Isabelle2018-RC3 (29-Jul-2018): fairly stable release candidate. See also AFP for Isabelle2018. Notable changes:
    • Update of Poly/ML component: proper monitoring of ML threads.
    • Update to latest Java 8 release: jdk-8u181.
    • More command-line options for isabelle vscode_server (relevant for VSCode settings isabelle.args).
    • Isabelle Server: allow to specify timeout for use_theories.
    • Proper treatment of forked proof within context of subgoal premises.
    • More robust build of HOL-Proofs with threads=2.
    • More flexible document build script.
    • Clarified word characters in Isabelle/jEdit to accommodate \<^control> symbols.
  • Isabelle2018-RC4 (07-Aug-2018): presumably the last release candidate. See also AFP for Isabelle2018. Notable changes:
    • Update of Isabelle/jEdit manual.
    • Fine-tuning of isabelle build options -c -x -B.
    • Fine-tuning of Isar command span range: relevant for checking of formal comments.
    • Removed Sledgehammer prover veriT: not ready for release.

The Isabelle release process is subject to the laws of causality: release candidates can be modified, but the final release is unchangeable. This means that testing needs to happen in the weeks before the final release.

The main forum for discussion of Isabelle2018 release candidates is on isabelle-users mailing list.

Update 15-Aug-2018: The final release of Isabelle2018 (August 2018) is available from the Isabelle website. The above release candidates will disappear eventually.