CONTRIBUTORS

* HOL-Word:
New extensive library and type for generic, fixed size machine
words, with arithemtic, bit-wise, shifting and rotating operations,
reflection into int, nat, and bool lists, automation for linear
arithmetic (by automatic reflection into nat or int), including
lemmas on overflow and monotonicity. Instantiated to all appropriate
arithmetic type classes, supporting automatic simplification of
numerals on all operations. Jointly developed by NICTA, Galois, and
PSU.

* still to do: README.html/document + moving some of the generic lemmas
to appropriate place in distribution

For the purposes of the license agreement in the file COPYRIGHT, a 
'contributor' is anybody who is listed in this file (CONTRIBUTORS) or 
who is listed as an author in one of the source files of this Isabelle
distribution.


Contributions to Isabelle 2007
------------------------------

* August 2007: Jeremy Dawson, NICTA,
               Paul Graunke, Galois, 
               Brian Huffman, PSU,
               Gerwin Klein, NICTA, 
               John Matthews, Galois
  HOL-Word: a library for fixed-size machine words in Isabelle.

* August 2007: Brian Huffman, PSU
  HOL/Library/Boolean_Algebra and HOL/Library/Numeral_Type

* June 2007: Amine Chaieb, TUM
  Semiring normalization and Groebner Bases

* June 2007: Joe Hurd, Oxford
  Metis theorem-prover

* 2006/2007: Kong W. Susanto, Cambridge
  HOL: Metis prover integration.

* 2006/2007: Florian Haftmann, TUM
  Pure: generic code generator framework.
  Pure: class package.
  HOL: theory tuning, code generator setup.

* November 2006: Lukas Bulwahn, TUM
  HOL/function: method "lexicographic_order".

* October 2006: Stefan Hohe, TUM
  HOL-Algebra: ideals and quotients over rings.

* August 2006: Amine Chaieb, TUM
  Experimental support for generic reflection and reification in HOL.

* July 2006: Rafal Kolanski, NICTA
  Hex (0xFF) and binary (0b1011) numerals.

* May 2006: Klaus Aehlig, LMU
  Command 'normal_form': normalization by evaluation.

* May 2006: Amine Chaieb, TUM
  HOL-Complex: Ferrante and Rackoff Algorithm for linear real
  arithmetic.

* February 2006: Benjamin Porter, NICTA
  HOL and HOL-Complex: generalised mean value theorem, continuum is
  not denumerable, harmonic and arithmetic series, and denumerability
  of rationals.

* October 2005: Martin Wildmoser, TUM
  Sketch for Isar 'guess' element.


Contributions to Isabelle 2005
------------------------------

* September 2005: Lukas Bulwahn and Bernhard Haeupler, TUM
  HOL-Complex: Formalization of Taylor series.

* September 2005: Stephan Merz, Alwen Tiu, QSL Loria
  Components for SAT solver method using zChaff.

* September 2005: Ning Zhang and Christian Urban, LMU Munich
  A Chinese theory.

* September 2005: Bernhard Haeupler, TUM
  Method comm_ring for proving equalities in commutative rings.

* July/August 2005: Jeremy Avigad, Carnegie Mellon University
  Various improvements of the HOL and HOL-Complex library.

* July 2005: Florian Zuleger, Johannes Hoelzl, and Simon Funke, TUM
  Some structured proofs about completeness of real numbers.

* May 2005: Rafal Kolanski and Gerwin Klein, NICTA
  Improved retrieval of facts from theory/proof context.

* February 2005: Lucas Dixon, University of Edinburgh
  Improved subst method.

* 2005: Brian Huffman, OGI
  Various improvements of HOLCF.
  Some improvements of the HOL-Complex library.

* 2005: Claire Quigley and Jia Meng, University of Cambridge
  Some support for asynchronous communication with external provers
  (experimental).

* 2005: Florian Haftmann, TUM
  Contributions to document 'sugar'.
  Various ML combinators, notably linear functional transformations.
  Some cleanup of ML legacy.
  Additional antiquotations.
  Improved Isabelle web site.

* 2004/2005: David Aspinall, University of Edinburgh
  Various elements of XML and PGIP based communication with user
  interfaces (experimental).

* 2004/2005: Gerwin Klein, NICTA
  Contributions to document 'sugar'.
  Improved Isabelle web site.
  Improved HTML presentation of theories.

* 2004/2005: Clemens Ballarin, TUM
  Provers: tools for transitive relations and quasi orders.
  Improved version of locales, notably interpretation of locales.
  Improved version of HOL-Algebra.

* 2004/2005: Amine Chaieb, TUM
  Improved version of HOL presburger method.

* 2004/2005: Steven Obua, TUM
  Improved version of HOL/Import, support for HOL-Light.
  Improved version of HOL-Complex-Matrix.
  Pure/defs: more sophisticated checks on well-formedness of overloading.
  Pure/Tools: an experimental evaluator for lambda terms.

* 2004/2005: Norbert Schirmer, TUM
  Contributions to document 'sugar'.
  Improved version of HOL/record.

* 2004/2005: Sebastian Skalberg, TUM
  Improved version of HOL/Import.
  Some internal ML reorganizations.

* 2004/2005: Tjark Weber, TUM
  SAT solver method using zChaff.
  Improved version of HOL/refute.

$Id$