ANNOUNCE

converted adm_all and adm_ball to rule_format; cleaned up

Subject: Announcing Isabelle2007
To: [e-mail]

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).  Some 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.

* Auto quickcheck: toplevel goals are tested for counterexamples
automatically when they are stated.

* 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 for HOL.

* Much improved algebraic capabilities, including Groebner bases.

* Embedding of ML code into theories with static references to the
logical context (via antiquotations).

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


You may get Isabelle2007 from the following mirror sites:

  Cambridge (UK)       http://www.cl.cam.ac.uk/Research/HVG/Isabelle/
  Munich (Germany)     http://isabelle.in.tum.de/
  Sydney (Australia)   http://mirror.cse.unsw.edu.au/pub/isabelle/