author haftmann
Fri, 02 Nov 2007 08:17:33 +0100
changeset 25259 8d6b03eef9c9
parent 25242 6c3890cbceac
child 25271 f28efd37e18a
permissions -rw-r--r--

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.

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

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

* Command 'normal_form' and method 'normalization'
for evaluating terms with free variables.

* Full list comprehension syntax.

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

* Much improved algebraic capabilities, including Groebner bases.

You may get Isabelle2007 from the following mirror sites:

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