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Mon, 26 Nov 2012 13:35:05 +0100
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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

Contributions to this Isabelle version

* 2012: Makarius Wenzel, Université Paris-Sud / LRI
  Improvements of Isabelle/Scala and Isabelle/jEdit Prover IDE.

* Fall 2012: Daniel Kuehlwein, ICIS, Radboud University Nijmegen
  Jasmin Blanchette, TUM
  Implemented Machine Learning for Sledgehammer (MaSh).

* Fall 2012: Steffen Smolka, TUM
  Various improvements to Sledgehammer's Isar proof generator, including
  a smart type annotation algorithm and proof shrinking.

* November 2012: Fabian Immler, TUM
  "Symbols" dockable for Isabelle/jEdit.

* November 2012: Fabian Immler, TUM
  Proof of the Daniell-Kolmogorov theorem: the existence of the limit
  of projective families.

* October 2012: Andreas Lochbihler, KIT
  Efficient construction of red-black trees from sorted associative

* September 2012: Florian Haftmann, TUM
  Lattice instances for type option.

* September 2012: Christian Sternagel, JAIST
  Consolidated HOL/Library (theories: Prefix_Order, Sublist, and
  Sublist_Order) w.r.t. prefixes, suffixes, and embedding on lists.

* August 2012: Dmitriy Traytel, Andrei Popescu, Jasmin Blanchette, TUM
  New BNF-based (co)datatype package.

* August 2012: Andrei Popescu and Dmitriy Traytel, TUM
  Theories of ordinals and cardinals.

* July 2012: Makarius Wenzel, Université Paris-Sud / LRI
  Advanced support for Isabelle sessions and build management, notably
  "isabelle build".

* June 2012: Felix Kuperjans, Lukas Bulwahn, TUM and Rafal Kolanski, NICTA
  Simproc for rewriting set comprehensions into pointfree expressions.

* May 2012: Andreas Lochbihler, KIT
  Theory of almost everywhere constant functions.

Contributions to Isabelle2012

* April 2012: Johannes Hölzl, TUM
  Probability: Introduced type to represent measures instead of

* April 2012: Johannes Hölzl, Fabian Immler, TUM
  Float: Moved to Dyadic rationals to represent floating point numers.

* April 2012: Thomas Sewell, NICTA and
  2010: Sascha Boehme, TUM
  Theory HOL/Word/WordBitwise: logic/circuit expansion of bitvector

* March 2012: Christian Sternagel, JAIST
  Consolidated theory of relation composition.

* March 2012: Nik Sultana, University of Cambridge
  HOL/TPTP parser and import facilities.

* March 2012: Cezary Kaliszyk, University of Innsbruck and
  Alexander Krauss, QAware GmbH
  Faster and more scalable Import mechanism for HOL Light proofs.

* January 2012: Florian Haftmann, TUM, et al.
  (Re-)Introduction of the "set" type constructor.

* 2012: Ondrej Kuncar, TUM
  New package Lifting, various improvements and refinements to the
  Quotient package.

* 2011/2012: Jasmin Blanchette, TUM
  Various improvements to Sledgehammer, notably: tighter integration
  with SPASS, support for more provers (Alt-Ergo, iProver,

* 2011/2012: Makarius Wenzel, Université Paris-Sud / LRI
  Various refinements of local theory infrastructure.
  Improvements of Isabelle/Scala layer and Isabelle/jEdit Prover IDE.

Contributions to Isabelle2011-1

* September 2011: Peter Gammie
  Theory HOL/Library/Saturated: numbers with saturated arithmetic.

* August 2011: Florian Haftmann, Johannes Hölzl and Lars Noschinski, TUM
  Refined theory on complete lattices.

* August 2011: Brian Huffman, Portland State University
  Miscellaneous cleanup of Complex_Main and Multivariate_Analysis.

* June 2011: Brian Huffman, Portland State University
  Proof method "countable_datatype" for theory Library/Countable.

* 2011: Jasmin Blanchette, TUM
  Various improvements to Sledgehammer, notably: use of sound
  translations, support for more provers (Waldmeister, LEO-II,
  Satallax). Further development of Nitpick and 'try' command.

* 2011: Andreas Lochbihler, Karlsruhe Institute of Technology
  Theory HOL/Library/Cset_Monad allows do notation for computable sets
  (cset) via the generic monad ad-hoc overloading facility.

* 2011: Johannes Hölzl, Armin Heller, TUM and
  Bogdan Grechuk, University of Edinburgh
  Theory HOL/Library/Extended_Reals: real numbers extended with plus
  and minus infinity.

* 2011: Makarius Wenzel, Université Paris-Sud / LRI
  Various building blocks for Isabelle/Scala layer and Isabelle/jEdit
  Prover IDE.

Contributions to Isabelle2011

* January 2011: Stefan Berghofer, secunet Security Networks AG
  HOL-SPARK: an interactive prover back-end for SPARK.

* October 2010: Bogdan Grechuk, University of Edinburgh
  Extended convex analysis in Multivariate Analysis.

* October 2010: Dmitriy Traytel, TUM
  Coercive subtyping via subtype constraints.

* October 2010: Alexander Krauss, TUM
  Command partial_function for function definitions based on complete
  partial orders in HOL.

* September 2010: Florian Haftmann, TUM
  Refined concepts for evaluation, i.e., normalization of terms using
  different techniques.

* September 2010: Florian Haftmann, TUM
  Code generation for Scala.

* August 2010: Johannes Hoelzl, Armin Heller, and Robert Himmelmann, TUM
  Improved Probability theory in HOL.

* July 2010: Florian Haftmann, TUM
  Reworking and extension of the Imperative HOL framework.

* July 2010: Alexander Krauss, TUM and Christian Sternagel, University
    of Innsbruck
  Ad-hoc overloading. Generic do notation for monads.

Contributions to Isabelle2009-2

* 2009/2010: Stefan Berghofer, Alexander Krauss, and Andreas Schropp, TUM,
  Makarius Wenzel, TUM / LRI
  Elimination of type classes from proof terms.

* April 2010: Florian Haftmann, TUM
  Reorganization of abstract algebra type classes.

* April 2010: Florian Haftmann, TUM
  Code generation for data representations involving invariants;
  various collections avaiable in theories Fset, Dlist, RBT,
  Mapping and AssocList.

* March 2010: Sascha Boehme, TUM
  Efficient SHA1 library for Poly/ML.

* February 2010: Cezary Kaliszyk and Christian Urban, TUM
  Quotient type package for Isabelle/HOL.

Contributions to Isabelle2009-1

* November 2009, Brian Huffman, PSU
  New definitional domain package for HOLCF.

* November 2009: Robert Himmelmann, TUM
  Derivation and Brouwer's fixpoint theorem in Multivariate Analysis.

* November 2009: Stefan Berghofer and Lukas Bulwahn, TUM
  A tabled implementation of the reflexive transitive closure.

* November 2009: Lukas Bulwahn, TUM
  Predicate Compiler: a compiler for inductive predicates to
  equational specifications.

* November 2009: Sascha Boehme, TUM and Burkhart Wolff, LRI Paris
  HOL-Boogie: an interactive prover back-end for Boogie and VCC.

* October 2009: Jasmin Blanchette, TUM
  Nitpick: yet another counterexample generator for Isabelle/HOL.

* October 2009: Sascha Boehme, TUM
  Extension of SMT method: proof-reconstruction for the SMT solver Z3.

* October 2009: Florian Haftmann, TUM
  Refinement of parts of the HOL datatype package.

* October 2009: Florian Haftmann, TUM
  Generic term styles for term antiquotations.

* September 2009: Thomas Sewell, NICTA
  More efficient HOL/record implementation.

* September 2009: Sascha Boehme, TUM
  SMT method using external SMT solvers.

* September 2009: Florian Haftmann, TUM
  Refinement of sets and lattices.

* July 2009: Jeremy Avigad and Amine Chaieb
  New number theory.

* July 2009: Philipp Meyer, TUM
  HOL/Library/Sum_Of_Squares: functionality to call a remote csdp

* July 2009: Florian Haftmann, TUM
  New quickcheck implementation using new code generator.

* July 2009: Florian Haftmann, TUM
  HOL/Library/Fset: an explicit type of sets; finite sets ready to use
  for code generation.

* June 2009: Florian Haftmann, TUM
  HOL/Library/Tree: search trees implementing mappings, ready to use
  for code generation.

* March 2009: Philipp Meyer, TUM
  Minimization tool for results from Sledgehammer.

Contributions to Isabelle2009

* March 2009: Robert Himmelmann, TUM and Amine Chaieb, University of
  Elementary topology in Euclidean space.

* March 2009: Johannes Hoelzl, TUM
  Method "approximation", which proves real valued inequalities by

* February 2009: Filip Maric, Univ. of Belgrade
  A Serbian theory.

* February 2009: Jasmin Christian Blanchette, TUM
  Misc cleanup of HOL/refute.

* February 2009: Timothy Bourke, NICTA
  New find_consts command.

* February 2009: Timothy Bourke, NICTA
  "solves" criterion for find_theorems and auto_solve option

* December 2008: Clemens Ballarin, TUM
  New locale implementation.

* December 2008: Armin Heller, TUM and Alexander Krauss, TUM
  Method "sizechange" for advanced termination proofs.

* November 2008: Timothy Bourke, NICTA
  Performance improvement (factor 50) for find_theorems.

* 2008: Florian Haftmann, TUM
  Various extensions and restructurings in HOL, improvements
  in evaluation mechanisms, new module binding.ML for name bindings.

* October 2008: Fabian Immler, TUM
  ATP manager for Sledgehammer, based on ML threads instead of Posix
  processes.  Additional ATP wrappers, including remote SystemOnTPTP

* September 2008: Stefan Berghofer, TUM and Marc Bezem, Univ. Bergen
  Prover for coherent logic.

* August 2008: Fabian Immler, TUM
  Vampire wrapper script for remote SystemOnTPTP service.

Contributions to Isabelle2008

* 2007/2008:
  Alexander Krauss, TUM and Florian Haftmann, TUM and Stefan Berghofer, TUM
  HOL library improvements.

* 2007/2008: Brian Huffman, PSU
  HOLCF library improvements.

* 2007/2008: Stefan Berghofer, TUM
  HOL-Nominal package improvements.

* March 2008: Markus Reiter, TUM
  HOL/Library/RBT: red-black trees.

* February 2008: Alexander Krauss, TUM and Florian Haftmann, TUM and
  Lukas Bulwahn, TUM and John Matthews, Galois:
  HOL/Library/Imperative_HOL: Haskell-style imperative data structures
  for HOL.

* December 2007: Norbert Schirmer, Uni Saarbruecken
  Misc improvements of record package in HOL.

* December 2007: Florian Haftmann, TUM
  Overloading and class instantiation target.

* December 2007: Florian Haftmann, TUM
  New version of primrec package for local theories.

* December 2007: Alexander Krauss, TUM
  Method "induction_scheme" in HOL.

* November 2007: Peter Lammich, Uni Muenster
  HOL-Lattice: some more lemmas.

Contributions to Isabelle2007

* October 2007: Norbert Schirmer, TUM / Uni Saarbruecken
  State Spaces: The Locale Way (in HOL).

* October 2007: Mark A. Hillebrand, DFKI
  Robust sub/superscripts in LaTeX document output.

* August 2007: Jeremy Dawson, NICTA and Paul Graunke, Galois and Brian
    Huffman, PSU and Gerwin Klein, NICTA and 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.
  Support for dense linear orders.

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

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

* 2007: Stefan Berghofer, TUM
  HOL: inductive predicates and sets.

* 2007: Norbert Schirmer, TUM
  HOL/record: misc improvements.

* 2006/2007: Alexander Krauss, TUM
  HOL: function package and related theories on termination.

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

* 2006/2007: Christian Urban, TUM and Stefan Berghofer, TUM and
    Julien Narboux, TUM
  HOL/Nominal package and related tools.

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

* 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

* 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 Isabelle2005

* 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

* 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.