CONTRIBUTORS
author wenzelm
Wed Apr 08 23:00:09 2015 +0200 (2015-04-08)
changeset 59980 070f04c94b2e
parent 59813 6320064f22bb
child 60012 0c307c5c03f0
permissions -rw-r--r--
misc tuning for release;
     1 For the purposes of the license agreement in the file COPYRIGHT, a
     2 'contributor' is anybody who is listed in this file (CONTRIBUTORS) or
     3 who is listed as an author in one of the source files of this Isabelle
     4 distribution.
     5 
     6 Contributions to this Isabelle version
     7 --------------------------------------
     8 
     9 * March 2015: Jasmin Blanchette, Inria & LORIA & MPII, Mathias Fleury, MPII,
    10   and Dmitriy Traytel, TUM
    11   More multiset theorems, syntax, and operations.
    12 
    13 * December 2014: Johannes Hölzl, Manuel Eberl, Sudeep Kanav, TUM, and
    14   Jeremy Avigad, Luke Serafin, CMU
    15   Various integration theorems: mostly integration on intervals and
    16   substitution.
    17 
    18 * September 2014: Florian Haftmann, TUM
    19   Lexicographic order on functions and
    20   sum/product over function bodies.
    21 
    22 * August 2014: Andreas Lochbihler, ETH Zurich
    23   Test infrastructure for executing generated code in target languages.
    24 
    25 * August 2014: Manuel Eberl, TUM
    26   Generic euclidean algorithms for GCD et al.
    27 
    28 
    29 Contributions to Isabelle2014
    30 -----------------------------
    31 
    32 * July 2014: Thomas Sewell, NICTA
    33   Preserve equality hypotheses in "clarify" and friends. New
    34   "hypsubst_thin" method configuration option.
    35 
    36 * Summer 2014: Florian Haftmann, TUM
    37   Consolidation and generalization of facts concerning (abelian)
    38   semigroups and monoids, particularly products (resp. sums) on
    39   finite sets.
    40 
    41 * Summer 2014: Mathias Fleury, ENS Rennes, and Albert Steckermeier, TUM
    42   Work on exotic automatic theorem provers for Sledgehammer (LEO-II,
    43   veriT, Waldmeister, etc.).
    44 
    45 * June 2014: Florian Haftmann, TUM
    46   Internal reorganisation of the local theory / named target stack.
    47 
    48 * June 2014: Sudeep Kanav, TUM, Jeremy Avigad, CMU, and Johannes Hölzl, TUM
    49   Various properties of exponentially, Erlang, and normal distributed
    50   random variables.
    51 
    52 * May 2014: Cezary Kaliszyk, University of Innsbruck, and
    53   Jasmin Blanchette, TUM
    54   SML-based engines for MaSh.
    55 
    56 * March 2014: René Thiemann
    57   Improved code generation for multisets.
    58 
    59 * February 2014: Florian Haftmann, TUM
    60   Permanent interpretation inside theory, locale and class targets
    61   with mixin definitions.
    62 
    63 * Spring 2014: Lawrence C Paulson, Cambridge
    64   Theory Complex_Basic_Analysis. Tidying up Number_Theory vs Old_Number_Theory
    65 
    66 * Winter 2013 and Spring 2014: Ondrej Kuncar, TUM
    67   Various improvements to Lifting/Transfer, integration with the BNF package.
    68 
    69 * Winter 2013 and Spring 2014: Makarius Wenzel, Université Paris-Sud / LRI
    70   Improvements of Isabelle/Scala and Isabelle/jEdit Prover IDE.
    71 
    72 * Fall 2013 and Winter 2014: Martin Desharnais, Lorenz Panny,
    73   Dmitriy Traytel, and Jasmin Blanchette, TUM
    74   Various improvements to the BNF-based (co)datatype package,
    75   including a more polished "primcorec" command, optimizations, and
    76   integration in the "HOL" session.
    77 
    78 * Winter/Spring 2014: Sascha Boehme, QAware GmbH, and
    79   Jasmin Blanchette, TUM
    80   "SMT2" module and "smt2" proof method, based on SMT-LIB 2 and
    81   Z3 4.3.
    82 
    83 * January 2014: Lars Hupel, TUM
    84   An improved, interactive simplifier trace with integration into the
    85   Isabelle/jEdit Prover IDE.
    86 
    87 * December 2013: Florian Haftmann, TUM
    88   Consolidation of abstract interpretations concerning min and max.
    89 
    90 * November 2013: Florian Haftmann, TUM
    91   Abolition of negative numeral literals in the logic.
    92 
    93 
    94 Contributions to Isabelle2013-1
    95 -------------------------------
    96 
    97 * September 2013: Lars Noschinski, TUM
    98   Conversion between function definitions as list of equations and
    99   case expressions in HOL.
   100   New library Simps_Case_Conv with commands case_of_simps,
   101   simps_of_case.
   102 
   103 * September 2013: Nik Sultana, University of Cambridge
   104   Improvements to HOL/TPTP parser and import facilities.
   105 
   106 * September 2013: Johannes Hölzl and Dmitriy Traytel, TUM
   107   New "coinduction" method (residing in HOL-BNF) to avoid boilerplate.
   108 
   109 * Summer 2013: Makarius Wenzel, Université Paris-Sud / LRI
   110   Improvements of Isabelle/Scala and Isabelle/jEdit Prover IDE.
   111 
   112 * Summer 2013: Manuel Eberl, TUM
   113   Generation of elimination rules in the function package.
   114   New command "fun_cases".
   115 
   116 * Summer 2013: Christian Sternagel, JAIST
   117   Improved support for ad hoc overloading of constants, including
   118   documentation and examples.
   119 
   120 * Spring and Summer 2013: Lorenz Panny, Dmitriy Traytel, and
   121   Jasmin Blanchette, TUM
   122   Various improvements to the BNF-based (co)datatype package, including
   123   "primrec_new" and "primcorec" commands and a compatibility layer.
   124 
   125 * Spring and Summer 2013: Ondrej Kuncar, TUM
   126   Various improvements of Lifting and Transfer packages.
   127 
   128 * Spring 2013: Brian Huffman, Galois Inc.
   129   Improvements of the Transfer package.
   130 
   131 * Summer 2013: Daniel Kühlwein, ICIS, Radboud University Nijmegen
   132   Jasmin Blanchette, TUM
   133   Various improvements to MaSh, including a server mode.
   134 
   135 * First half of 2013: Steffen Smolka, TUM
   136   Further improvements to Sledgehammer's Isar proof generator.
   137 
   138 * May 2013: Florian Haftmann, TUM
   139   Ephemeral interpretation in local theories.
   140 
   141 * May 2013: Lukas Bulwahn and Nicolai Schaffroth, TUM
   142   Spec_Check: A Quickcheck tool for Isabelle/ML.
   143 
   144 * April 2013: Stefan Berghofer, secunet Security Networks AG
   145   Dmitriy Traytel, TUM
   146   Makarius Wenzel, Université Paris-Sud / LRI
   147   Case translations as a separate check phase independent of the
   148   datatype package.
   149 
   150 * March 2013: Florian Haftmann, TUM
   151   Reform of "big operators" on sets.
   152 
   153 * March 2013: Florian Haftmann, TUM
   154   Algebraic locale hierarchy for orderings and (semi)lattices.
   155 
   156 * February 2013: Florian Haftmann, TUM
   157   Reworking and consolidation of code generation for target language
   158   numerals.
   159 
   160 * February 2013: Florian Haftmann, TUM
   161   Sieve of Eratosthenes.
   162 
   163 
   164 Contributions to Isabelle2013
   165 -----------------------------
   166 
   167 * 2012: Makarius Wenzel, Université Paris-Sud / LRI
   168   Improvements of Isabelle/Scala and Isabelle/jEdit Prover IDE.
   169 
   170 * Fall 2012: Daniel Kühlwein, ICIS, Radboud University Nijmegen
   171   Jasmin Blanchette, TUM
   172   Implemented Machine Learning for Sledgehammer (MaSh).
   173 
   174 * Fall 2012: Steffen Smolka, TUM
   175   Various improvements to Sledgehammer's Isar proof generator,
   176   including a smart type annotation algorithm and proof shrinking.
   177 
   178 * December 2012: Alessandro Coglio, Kestrel
   179   Contributions to HOL's Lattice library.
   180 
   181 * November 2012: Fabian Immler, TUM
   182   "Symbols" dockable for Isabelle/jEdit.
   183 
   184 * November 2012: Fabian Immler, TUM
   185   Proof of the Daniell-Kolmogorov theorem: the existence of the limit
   186   of projective families.
   187 
   188 * October 2012: Andreas Lochbihler, KIT
   189   Efficient construction of red-black trees from sorted associative
   190   lists.
   191 
   192 * September 2012: Florian Haftmann, TUM
   193   Lattice instances for type option.
   194 
   195 * September 2012: Christian Sternagel, JAIST
   196   Consolidated HOL/Library (theories: Prefix_Order, Sublist, and
   197   Sublist_Order) w.r.t. prefixes, suffixes, and embedding on lists.
   198 
   199 * August 2012: Dmitriy Traytel, Andrei Popescu, Jasmin Blanchette, TUM
   200   New BNF-based (co)datatype package.
   201 
   202 * August 2012: Andrei Popescu and Dmitriy Traytel, TUM
   203   Theories of ordinals and cardinals.
   204 
   205 * July 2012: Makarius Wenzel, Université Paris-Sud / LRI
   206   Advanced support for Isabelle sessions and build management, notably
   207   "isabelle build".
   208 
   209 * June 2012: Felix Kuperjans, Lukas Bulwahn, TUM and Rafal Kolanski, NICTA
   210   Simproc for rewriting set comprehensions into pointfree expressions.
   211 
   212 * May 2012: Andreas Lochbihler, KIT
   213   Theory of almost everywhere constant functions.
   214 
   215 * 2010-2012: Markus Kaiser and Lukas Bulwahn, TUM
   216   Graphview in Scala/Swing.
   217 
   218 
   219 Contributions to Isabelle2012
   220 -----------------------------
   221 
   222 * April 2012: Johannes Hölzl, TUM
   223   Probability: Introduced type to represent measures instead of
   224   locales.
   225 
   226 * April 2012: Johannes Hölzl, Fabian Immler, TUM
   227   Float: Moved to Dyadic rationals to represent floating point numers.
   228 
   229 * April 2012: Thomas Sewell, NICTA and
   230   2010: Sascha Boehme, TUM
   231   Theory HOL/Word/WordBitwise: logic/circuit expansion of bitvector
   232   equalities/inequalities.
   233 
   234 * March 2012: Christian Sternagel, JAIST
   235   Consolidated theory of relation composition.
   236 
   237 * March 2012: Nik Sultana, University of Cambridge
   238   HOL/TPTP parser and import facilities.
   239 
   240 * March 2012: Cezary Kaliszyk, University of Innsbruck and
   241   Alexander Krauss, QAware GmbH
   242   Faster and more scalable Import mechanism for HOL Light proofs.
   243 
   244 * January 2012: Florian Haftmann, TUM, et al.
   245   (Re-)Introduction of the "set" type constructor.
   246 
   247 * 2012: Ondrej Kuncar, TUM
   248   New package Lifting, various improvements and refinements to the
   249   Quotient package.
   250 
   251 * 2011/2012: Jasmin Blanchette, TUM
   252   Various improvements to Sledgehammer, notably: tighter integration
   253   with SPASS, support for more provers (Alt-Ergo, iProver,
   254   iProver-Eq).
   255 
   256 * 2011/2012: Makarius Wenzel, Université Paris-Sud / LRI
   257   Various refinements of local theory infrastructure.
   258   Improvements of Isabelle/Scala layer and Isabelle/jEdit Prover IDE.
   259 
   260 
   261 Contributions to Isabelle2011-1
   262 -------------------------------
   263 
   264 * September 2011: Peter Gammie
   265   Theory HOL/Library/Saturated: numbers with saturated arithmetic.
   266 
   267 * August 2011: Florian Haftmann, Johannes Hölzl and Lars Noschinski, TUM
   268   Refined theory on complete lattices.
   269 
   270 * August 2011: Brian Huffman, Portland State University
   271   Miscellaneous cleanup of Complex_Main and Multivariate_Analysis.
   272 
   273 * June 2011: Brian Huffman, Portland State University
   274   Proof method "countable_datatype" for theory Library/Countable.
   275 
   276 * 2011: Jasmin Blanchette, TUM
   277   Various improvements to Sledgehammer, notably: use of sound
   278   translations, support for more provers (Waldmeister, LEO-II,
   279   Satallax). Further development of Nitpick and 'try' command.
   280 
   281 * 2011: Andreas Lochbihler, Karlsruhe Institute of Technology
   282   Theory HOL/Library/Cset_Monad allows do notation for computable sets
   283   (cset) via the generic monad ad-hoc overloading facility.
   284 
   285 * 2011: Johannes Hölzl, Armin Heller, TUM and
   286   Bogdan Grechuk, University of Edinburgh
   287   Theory HOL/Library/Extended_Reals: real numbers extended with plus
   288   and minus infinity.
   289 
   290 * 2011: Makarius Wenzel, Université Paris-Sud / LRI
   291   Various building blocks for Isabelle/Scala layer and Isabelle/jEdit
   292   Prover IDE.
   293 
   294 
   295 Contributions to Isabelle2011
   296 -----------------------------
   297 
   298 * January 2011: Stefan Berghofer, secunet Security Networks AG
   299   HOL-SPARK: an interactive prover back-end for SPARK.
   300 
   301 * October 2010: Bogdan Grechuk, University of Edinburgh
   302   Extended convex analysis in Multivariate Analysis.
   303 
   304 * October 2010: Dmitriy Traytel, TUM
   305   Coercive subtyping via subtype constraints.
   306 
   307 * October 2010: Alexander Krauss, TUM
   308   Command partial_function for function definitions based on complete
   309   partial orders in HOL.
   310 
   311 * September 2010: Florian Haftmann, TUM
   312   Refined concepts for evaluation, i.e., normalization of terms using
   313   different techniques.
   314 
   315 * September 2010: Florian Haftmann, TUM
   316   Code generation for Scala.
   317 
   318 * August 2010: Johannes Hoelzl, Armin Heller, and Robert Himmelmann, TUM
   319   Improved Probability theory in HOL.
   320 
   321 * July 2010: Florian Haftmann, TUM
   322   Reworking and extension of the Imperative HOL framework.
   323 
   324 * July 2010: Alexander Krauss, TUM and Christian Sternagel, University
   325     of Innsbruck
   326   Ad-hoc overloading. Generic do notation for monads.
   327 
   328 
   329 Contributions to Isabelle2009-2
   330 -------------------------------
   331 
   332 * 2009/2010: Stefan Berghofer, Alexander Krauss, and Andreas Schropp, TUM,
   333   Makarius Wenzel, TUM / LRI
   334   Elimination of type classes from proof terms.
   335 
   336 * April 2010: Florian Haftmann, TUM
   337   Reorganization of abstract algebra type classes.
   338 
   339 * April 2010: Florian Haftmann, TUM
   340   Code generation for data representations involving invariants;
   341   various collections avaiable in theories Fset, Dlist, RBT,
   342   Mapping and AssocList.
   343 
   344 * March 2010: Sascha Boehme, TUM
   345   Efficient SHA1 library for Poly/ML.
   346 
   347 * February 2010: Cezary Kaliszyk and Christian Urban, TUM
   348   Quotient type package for Isabelle/HOL.
   349 
   350 
   351 Contributions to Isabelle2009-1
   352 -------------------------------
   353 
   354 * November 2009, Brian Huffman, PSU
   355   New definitional domain package for HOLCF.
   356 
   357 * November 2009: Robert Himmelmann, TUM
   358   Derivation and Brouwer's fixpoint theorem in Multivariate Analysis.
   359 
   360 * November 2009: Stefan Berghofer and Lukas Bulwahn, TUM
   361   A tabled implementation of the reflexive transitive closure.
   362 
   363 * November 2009: Lukas Bulwahn, TUM
   364   Predicate Compiler: a compiler for inductive predicates to
   365   equational specifications.
   366 
   367 * November 2009: Sascha Boehme, TUM and Burkhart Wolff, LRI Paris
   368   HOL-Boogie: an interactive prover back-end for Boogie and VCC.
   369 
   370 * October 2009: Jasmin Blanchette, TUM
   371   Nitpick: yet another counterexample generator for Isabelle/HOL.
   372 
   373 * October 2009: Sascha Boehme, TUM
   374   Extension of SMT method: proof-reconstruction for the SMT solver Z3.
   375 
   376 * October 2009: Florian Haftmann, TUM
   377   Refinement of parts of the HOL datatype package.
   378 
   379 * October 2009: Florian Haftmann, TUM
   380   Generic term styles for term antiquotations.
   381 
   382 * September 2009: Thomas Sewell, NICTA
   383   More efficient HOL/record implementation.
   384 
   385 * September 2009: Sascha Boehme, TUM
   386   SMT method using external SMT solvers.
   387 
   388 * September 2009: Florian Haftmann, TUM
   389   Refinement of sets and lattices.
   390 
   391 * July 2009: Jeremy Avigad and Amine Chaieb
   392   New number theory.
   393 
   394 * July 2009: Philipp Meyer, TUM
   395   HOL/Library/Sum_Of_Squares: functionality to call a remote csdp
   396   prover.
   397 
   398 * July 2009: Florian Haftmann, TUM
   399   New quickcheck implementation using new code generator.
   400 
   401 * July 2009: Florian Haftmann, TUM
   402   HOL/Library/Fset: an explicit type of sets; finite sets ready to use
   403   for code generation.
   404 
   405 * June 2009: Florian Haftmann, TUM
   406   HOL/Library/Tree: search trees implementing mappings, ready to use
   407   for code generation.
   408 
   409 * March 2009: Philipp Meyer, TUM
   410   Minimization tool for results from Sledgehammer.
   411 
   412 
   413 Contributions to Isabelle2009
   414 -----------------------------
   415 
   416 * March 2009: Robert Himmelmann, TUM and Amine Chaieb, University of
   417   Cambridge
   418   Elementary topology in Euclidean space.
   419 
   420 * March 2009: Johannes Hoelzl, TUM
   421   Method "approximation", which proves real valued inequalities by
   422   computation.
   423 
   424 * February 2009: Filip Maric, Univ. of Belgrade
   425   A Serbian theory.
   426 
   427 * February 2009: Jasmin Christian Blanchette, TUM
   428   Misc cleanup of HOL/refute.
   429 
   430 * February 2009: Timothy Bourke, NICTA
   431   New find_consts command.
   432 
   433 * February 2009: Timothy Bourke, NICTA
   434   "solves" criterion for find_theorems and auto_solve option
   435 
   436 * December 2008: Clemens Ballarin, TUM
   437   New locale implementation.
   438 
   439 * December 2008: Armin Heller, TUM and Alexander Krauss, TUM
   440   Method "sizechange" for advanced termination proofs.
   441 
   442 * November 2008: Timothy Bourke, NICTA
   443   Performance improvement (factor 50) for find_theorems.
   444 
   445 * 2008: Florian Haftmann, TUM
   446   Various extensions and restructurings in HOL, improvements
   447   in evaluation mechanisms, new module binding.ML for name bindings.
   448 
   449 * October 2008: Fabian Immler, TUM
   450   ATP manager for Sledgehammer, based on ML threads instead of Posix
   451   processes.  Additional ATP wrappers, including remote SystemOnTPTP
   452   services.
   453 
   454 * September 2008: Stefan Berghofer, TUM and Marc Bezem, Univ. Bergen
   455   Prover for coherent logic.
   456 
   457 * August 2008: Fabian Immler, TUM
   458   Vampire wrapper script for remote SystemOnTPTP service.
   459 
   460 
   461 Contributions to Isabelle2008
   462 -----------------------------
   463 
   464 * 2007/2008:
   465   Alexander Krauss, TUM and Florian Haftmann, TUM and Stefan Berghofer, TUM
   466   HOL library improvements.
   467 
   468 * 2007/2008: Brian Huffman, PSU
   469   HOLCF library improvements.
   470 
   471 * 2007/2008: Stefan Berghofer, TUM
   472   HOL-Nominal package improvements.
   473 
   474 * March 2008: Markus Reiter, TUM
   475   HOL/Library/RBT: red-black trees.
   476 
   477 * February 2008: Alexander Krauss, TUM and Florian Haftmann, TUM and
   478   Lukas Bulwahn, TUM and John Matthews, Galois:
   479   HOL/Library/Imperative_HOL: Haskell-style imperative data structures
   480   for HOL.
   481 
   482 * December 2007: Norbert Schirmer, Uni Saarbruecken
   483   Misc improvements of record package in HOL.
   484 
   485 * December 2007: Florian Haftmann, TUM
   486   Overloading and class instantiation target.
   487 
   488 * December 2007: Florian Haftmann, TUM
   489   New version of primrec package for local theories.
   490 
   491 * December 2007: Alexander Krauss, TUM
   492   Method "induction_scheme" in HOL.
   493 
   494 * November 2007: Peter Lammich, Uni Muenster
   495   HOL-Lattice: some more lemmas.
   496 
   497 
   498 Contributions to Isabelle2007
   499 -----------------------------
   500 
   501 * October 2007: Norbert Schirmer, TUM / Uni Saarbruecken
   502   State Spaces: The Locale Way (in HOL).
   503 
   504 * October 2007: Mark A. Hillebrand, DFKI
   505   Robust sub/superscripts in LaTeX document output.
   506 
   507 * August 2007: Jeremy Dawson, NICTA and Paul Graunke, Galois and Brian
   508     Huffman, PSU and Gerwin Klein, NICTA and John Matthews, Galois
   509   HOL-Word: a library for fixed-size machine words in Isabelle.
   510 
   511 * August 2007: Brian Huffman, PSU
   512   HOL/Library/Boolean_Algebra and HOL/Library/Numeral_Type.
   513 
   514 * June 2007: Amine Chaieb, TUM
   515   Semiring normalization and Groebner Bases.
   516   Support for dense linear orders.
   517 
   518 * June 2007: Joe Hurd, Oxford
   519   Metis theorem-prover.
   520 
   521 * 2007: Kong W. Susanto, Cambridge
   522   HOL: Metis prover integration.
   523 
   524 * 2007: Stefan Berghofer, TUM
   525   HOL: inductive predicates and sets.
   526 
   527 * 2007: Norbert Schirmer, TUM
   528   HOL/record: misc improvements.
   529 
   530 * 2006/2007: Alexander Krauss, TUM
   531   HOL: function package and related theories on termination.
   532 
   533 * 2006/2007: Florian Haftmann, TUM
   534   Pure: generic code generator framework.
   535   Pure: class package.
   536   HOL: theory reorganization, code generator setup.
   537 
   538 * 2006/2007: Christian Urban, TUM and Stefan Berghofer, TUM and
   539     Julien Narboux, TUM
   540   HOL/Nominal package and related tools.
   541 
   542 * November 2006: Lukas Bulwahn, TUM
   543   HOL: method "lexicographic_order" for function package.
   544 
   545 * October 2006: Stefan Hohe, TUM
   546   HOL-Algebra: ideals and quotients over rings.
   547 
   548 * August 2006: Amine Chaieb, TUM
   549   Experimental support for generic reflection and reification in HOL.
   550 
   551 * July 2006: Rafal Kolanski, NICTA
   552   Hex (0xFF) and binary (0b1011) numerals.
   553 
   554 * May 2006: Klaus Aehlig, LMU
   555   Command 'normal_form': normalization by evaluation.
   556 
   557 * May 2006: Amine Chaieb, TUM
   558   HOL-Complex: Ferrante and Rackoff Algorithm for linear real
   559   arithmetic.
   560 
   561 * February 2006: Benjamin Porter, NICTA
   562   HOL and HOL-Complex: generalised mean value theorem, continuum is
   563   not denumerable, harmonic and arithmetic series, and denumerability
   564   of rationals.
   565 
   566 * October 2005: Martin Wildmoser, TUM
   567   Sketch for Isar 'guess' element.
   568 
   569 
   570 Contributions to Isabelle2005
   571 -----------------------------
   572 
   573 * September 2005: Lukas Bulwahn and Bernhard Haeupler, TUM
   574   HOL-Complex: Formalization of Taylor series.
   575 
   576 * September 2005: Stephan Merz, Alwen Tiu, QSL Loria
   577   Components for SAT solver method using zChaff.
   578 
   579 * September 2005: Ning Zhang and Christian Urban, LMU Munich
   580   A Chinese theory.
   581 
   582 * September 2005: Bernhard Haeupler, TUM
   583   Method comm_ring for proving equalities in commutative rings.
   584 
   585 * July/August 2005: Jeremy Avigad, Carnegie Mellon University
   586   Various improvements of the HOL and HOL-Complex library.
   587 
   588 * July 2005: Florian Zuleger, Johannes Hoelzl, and Simon Funke, TUM
   589   Some structured proofs about completeness of real numbers.
   590 
   591 * May 2005: Rafal Kolanski and Gerwin Klein, NICTA
   592   Improved retrieval of facts from theory/proof context.
   593 
   594 * February 2005: Lucas Dixon, University of Edinburgh
   595   Improved subst method.
   596 
   597 * 2005: Brian Huffman, OGI
   598   Various improvements of HOLCF.
   599   Some improvements of the HOL-Complex library.
   600 
   601 * 2005: Claire Quigley and Jia Meng, University of Cambridge
   602   Some support for asynchronous communication with external provers
   603   (experimental).
   604 
   605 * 2005: Florian Haftmann, TUM
   606   Contributions to document 'sugar'.
   607   Various ML combinators, notably linear functional transformations.
   608   Some cleanup of ML legacy.
   609   Additional antiquotations.
   610   Improved Isabelle web site.
   611 
   612 * 2004/2005: David Aspinall, University of Edinburgh
   613   Various elements of XML and PGIP based communication with user
   614   interfaces (experimental).
   615 
   616 * 2004/2005: Gerwin Klein, NICTA
   617   Contributions to document 'sugar'.
   618   Improved Isabelle web site.
   619   Improved HTML presentation of theories.
   620 
   621 * 2004/2005: Clemens Ballarin, TUM
   622   Provers: tools for transitive relations and quasi orders.
   623   Improved version of locales, notably interpretation of locales.
   624   Improved version of HOL-Algebra.
   625 
   626 * 2004/2005: Amine Chaieb, TUM
   627   Improved version of HOL presburger method.
   628 
   629 * 2004/2005: Steven Obua, TUM
   630   Improved version of HOL/Import, support for HOL-Light.
   631   Improved version of HOL-Complex-Matrix.
   632   Pure/defs: more sophisticated checks on well-formedness of overloading.
   633   Pure/Tools: an experimental evaluator for lambda terms.
   634 
   635 * 2004/2005: Norbert Schirmer, TUM
   636   Contributions to document 'sugar'.
   637   Improved version of HOL/record.
   638 
   639 * 2004/2005: Sebastian Skalberg, TUM
   640   Improved version of HOL/Import.
   641   Some internal ML reorganizations.
   642 
   643 * 2004/2005: Tjark Weber, TUM
   644   SAT solver method using zChaff.
   645   Improved version of HOL/refute.