author haftmann
Fri, 26 Oct 2007 10:32:10 +0200
changeset 25197 7a169cfda866
parent 25148 9c9646c1080d
child 25213 48a1e80f5cdb
permissions -rw-r--r--
added hint for algebra

Subject: Announcing Isabelle2007

Isabelle2007 is finally available.

This release introduces fundamental changes over Isabelle2005, see the
NEWS file in the distribution for more details.  Numerous existing
concepts have been generalized and re-implemented based on novel
system architecture.  New theories and proof tools have been added
(mostly for HOL).

The main highlights are:

* Support for nominal datatypes (binding structures) due to the
HOL-Nominal logic.

* General local theory infrastructure for specifications depending on
parameters and assumptions (e.g. from locales, classes).

* New basic specification elements 'definition', 'axiomatization',
'abbreviation', 'notation'.

* New version of 'inductive' package for inductive predicates;
separate variant 'inductive_set'.

* New 'function' package for general recursive function definitions.

* New 'class' package combination of axclass + locale interpretation.

* Various improvements in locale infrastructure (interpretation etc.)

* Various improvements of Isar language elements and related proof

* Built-in Metis prover, external linkup for automated provers, and
'sledghammer' command for automated proof synthesis.

* Second generation code-generator for a subset of HOL, targeting SML,
Haskell, and OCaml.

* Improved support for arbitrary ML operations depending on the
logical context.

* Parallel loading of theories based on native multicore support in
Poly/ML 5.1.

* Improved algebraic capabilities by means of semiring normalization,
Groebner bases and Ferrante/Rackoff algorithm.

You may get Isabelle2007 from the following mirror sites:

  Cambridge (UK)
  Munich (Germany)
  Sydney (Australia)