1 Subject: Announcing Isabelle2009-2
2 To: isabelle-users@cl.cam.ac.uk
4 Isabelle2009-2 is now available.
6 This release improves upon Isabelle2009-1 in many respects, see the
7 NEWS file in the distribution for more details. Some notable changes
10 * Explicit proof terms for type class reasoning.
12 * Robust treatment of concrete syntax for different logical entities;
13 mixfix syntax in local proof context.
15 * Type declarations and notation within local theory context.
17 * HOL: package for quotient types.
19 * HOL code generation: simple concept for abstract datatypes obeying
20 invariants (e.g. red-black trees).
22 * HOL: new development of the Reals using Cauchy Sequences.
24 * HOL: reorganization of abstract algebra type class hierarchy.
26 * HOL: substantial reorganization of main library and related tools.
28 * HOLCF: reorganization of 'domain' package.
31 You may get Isabelle2009-2 from the following mirror sites:
33 Cambridge (UK) http://www.cl.cam.ac.uk/research/hvg/Isabelle/
34 Munich (Germany) http://isabelle.in.tum.de/
35 Sydney (Australia) http://mirror.cse.unsw.edu.au/pub/isabelle/