CONTRIBUTORS
author wenzelm
Sat Mar 18 21:24:54 2017 +0100 (2017-03-18)
changeset 65315 c7097ccbffb7
parent 65099 30d0b2f1df76
child 65330 d83f709b7580
permissions -rw-r--r--
clarified signature;
wenzelm@24799
     1
For the purposes of the license agreement in the file COPYRIGHT, a
wenzelm@62098
     2
'contributor' is anybody who is listed in this file (CONTRIBUTORS) or who is
wenzelm@62098
     3
listed as an author in one of the source files of this Isabelle distribution.
wenzelm@62098
     4
kleing@23382
     5
wenzelm@64439
     6
Contributions to this Isabelle version
wenzelm@64439
     7
--------------------------------------
wenzelm@64439
     8
ballarin@65099
     9
* March 2017: Alasdair Armstrong and Simon Foster, University of York
ballarin@65099
    10
  Fixed-point theory and Galois Connections in HOL-Algebra.
ballarin@65099
    11
haftmann@65041
    12
* February 2017: Florian Haftmann, TUM
haftmann@65042
    13
  Statically embedded computations implemented by generated code.
haftmann@65041
    14
wenzelm@64439
    15
wenzelm@64072
    16
Contributions to Isabelle2016-1
wenzelm@64072
    17
-------------------------------
wenzelm@62216
    18
wenzelm@64551
    19
* December 2016: Ondřej Kunčar, TUM
wenzelm@64551
    20
  Types_To_Sets: experimental extension of Higher-Order Logic to allow
wenzelm@64551
    21
  translation of types to sets.
wenzelm@64551
    22
wenzelm@64393
    23
* October 2016: Jasmin Blanchette
wenzelm@64393
    24
  Integration of Nunchaku model finder.
wenzelm@64393
    25
wenzelm@64393
    26
* October 2016: Jaime Mendizabal Roche, TUM
wenzelm@64393
    27
  Ported remaining theories of session Old_Number_Theory to the new
wenzelm@64393
    28
  Number_Theory and removed Old_Number_Theory.
wenzelm@64393
    29
wenzelm@64393
    30
* September 2016: Sascha Boehme
wenzelm@64393
    31
  Proof method "argo" based on SMT technology for a combination of
wenzelm@64393
    32
  quantifier-free propositional logic, equality and linear real arithmetic
wenzelm@64393
    33
wenzelm@64393
    34
* July 2016: Daniel Stuewe
wenzelm@64393
    35
  Height-size proofs in HOL-Data_Structures.
wenzelm@64393
    36
wenzelm@64393
    37
* July 2016: Manuel Eberl, TUM
wenzelm@64393
    38
  Algebraic foundation for primes; generalization from nat to general
wenzelm@64393
    39
  factorial rings.
wenzelm@64393
    40
wenzelm@64393
    41
* June 2016: Andreas Lochbihler, ETH Zurich
wenzelm@64393
    42
  Formalisation of discrete subprobability distributions.
wenzelm@64393
    43
wenzelm@64393
    44
* June 2016: Florian Haftmann, TUM
wenzelm@64393
    45
  Improvements to code generation: optional timing measurements, more succint
wenzelm@64393
    46
  closures for static evaluation, less ambiguities concering Scala implicits.
wenzelm@64393
    47
wenzelm@64393
    48
* May 2016: Manuel Eberl, TUM
wenzelm@64393
    49
  Code generation for Probability Mass Functions.
haftmann@62343
    50
haftmann@64011
    51
* March 2016: Florian Haftmann, TUM
haftmann@62499
    52
  Abstract factorial rings with unique factorization.
haftmann@62499
    53
haftmann@64011
    54
* March 2016: Florian Haftmann, TUM
wenzelm@64393
    55
  Reworking of the HOL char type as special case of a finite numeral type.
wenzelm@62216
    56
wenzelm@64393
    57
* March 2016: Andreas Lochbihler, ETH Zurich
wenzelm@64393
    58
  Reasoning support for monotonicity, continuity and admissibility in
wenzelm@64393
    59
  chain-complete partial orders.
haftmann@64011
    60
wenzelm@64393
    61
* February - October 2016: Makarius Wenzel
wenzelm@64393
    62
  Prover IDE improvements.
wenzelm@64393
    63
  ML IDE improvements: bootstrap of Pure.
wenzelm@64393
    64
  Isar language consolidation.
wenzelm@64393
    65
  Notational modernization of HOL.
wenzelm@64393
    66
  Tight Poly/ML integration.
wenzelm@64393
    67
  More Isabelle/Scala system programming modules (e.g. SSH, Mercurial).
eberlm@63552
    68
blanchet@64433
    69
* Winter 2016: Jasmin Blanchette, Inria & LORIA & MPII, Aymeric Bouzy,
blanchet@64433
    70
  Ecole polytechnique, Andreas Lochbihler, ETH Zurich, Andrei Popescu,
blanchet@64433
    71
  Middlesex University, and Dmitriy Traytel, ETH Zurich
blanchet@64433
    72
  'corec' command and friends.
blanchet@64433
    73
wenzelm@64393
    74
* January 2016: Florian Haftmann, TUM
wenzelm@64393
    75
  Abolition of compound operators INFIMUM and SUPREMUM for complete lattices.
blanchet@64389
    76
blanchet@64389
    77
wenzelm@62016
    78
Contributions to Isabelle2016
wenzelm@62016
    79
-----------------------------
wenzelm@60138
    80
eberlm@62201
    81
* Winter 2016: Manuel Eberl, TUM
eberlm@62201
    82
  Support for real exponentiation ("powr") in the "approximation" method.
blanchet@62693
    83
  (This was removed in Isabelle 2015 due to a changed definition of "powr".)
eberlm@62201
    84
lp15@62138
    85
* Summer 2015 - Winter 2016: Lawrence C Paulson, Cambridge
lp15@62138
    86
  General, homology form of Cauchy's integral theorem and supporting material
wenzelm@62205
    87
  (ported from HOL Light).
lp15@62138
    88
kleing@62118
    89
* Winter 2015/16: Gerwin Klein, NICTA
wenzelm@62205
    90
  New print_record command.
kleing@62118
    91
wenzelm@62236
    92
* May - December 2015: Makarius Wenzel
wenzelm@62236
    93
  Prover IDE improvements.
wenzelm@62236
    94
  More Isar language elements.
wenzelm@62236
    95
  Document language refinements.
wenzelm@62236
    96
  Poly/ML debugger integration.
wenzelm@62236
    97
  Improved multi-platform and multi-architecture support.
wenzelm@62236
    98
eberlm@62060
    99
* Winter 2015: Manuel Eberl, TUM
eberlm@62060
   100
  The radius of convergence of power series and various summability tests.
wenzelm@62064
   101
  Harmonic numbers and the Euler-Mascheroni constant.
eberlm@62060
   102
  The Generalised Binomial Theorem.
wenzelm@62064
   103
  The complex and real Gamma/log-Gamma/Digamma/Polygamma functions and their
wenzelm@62064
   104
  most important properties.
lp15@62138
   105
eberlm@62086
   106
* Autumn 2015: Manuel Eberl, TUM
eberlm@62086
   107
  Proper definition of division (with remainder) for formal power series;
eberlm@62086
   108
  Euclidean Ring and GCD instance for formal power series.
eberlm@62060
   109
haftmann@61891
   110
* Autumn 2015: Florian Haftmann, TUM
wenzelm@62064
   111
  Rewrite definitions for global interpretations and sublocale declarations.
haftmann@61891
   112
Andreas@61766
   113
* Autumn 2015: Andreas Lochbihler
wenzelm@62064
   114
  Bourbaki-Witt fixpoint theorem for increasing functions on chain-complete
wenzelm@62064
   115
  partial orders.
Andreas@61766
   116
eberlm@61552
   117
* Autumn 2015: Chaitanya Mangla, Lawrence C Paulson, and Manuel Eberl
eberlm@61552
   118
  A large number of additional binomial identities.
eberlm@61552
   119
wenzelm@60632
   120
* Summer 2015: Daniel Matichuk, NICTA and Makarius Wenzel
wenzelm@62064
   121
  Isar subgoal command for proof structure within unstructured proof scripts.
wenzelm@60632
   122
haftmann@60434
   123
* Summer 2015: Florian Haftmann, TUM
wenzelm@60632
   124
  Generic partial division in rings as inverse operation of multiplication.
haftmann@60434
   125
haftmann@60517
   126
* Summer 2015: Manuel Eberl and Florian Haftmann, TUM
wenzelm@62064
   127
  Type class hierarchy with common algebraic notions of integral (semi)domains
wenzelm@62064
   128
  like units, associated elements and normalization wrt. units.
haftmann@60517
   129
haftmann@60804
   130
* Summer 2015: Florian Haftmann, TUM
haftmann@60804
   131
  Fundamentals of abstract type class for factorial rings.
haftmann@60804
   132
traytel@60920
   133
* Summer 2015: Julian Biendarra, TUM and Dmitriy Traytel, ETH Zurich
wenzelm@62064
   134
  Command to lift a BNF structure on the raw type to the abstract type for
wenzelm@62064
   135
  typedefs.
traytel@60920
   136
wenzelm@62236
   137
* Summer 2014: Jeremy Avigad, Luke Serafin, CMU, and Johannes Hölzl, TUM
wenzelm@62236
   138
  Proof of the central limit theorem: includes weak convergence,
wenzelm@62236
   139
  characteristic functions, and Levy's uniqueness and continuity theorem.
wenzelm@62236
   140
wenzelm@60138
   141
wenzelm@60012
   142
Contributions to Isabelle2015
wenzelm@60012
   143
-----------------------------
wenzelm@57695
   144
wenzelm@60119
   145
* 2014/2015: Daniel Matichuk, Toby Murray, NICTA and Makarius Wenzel
wenzelm@60119
   146
  The Eisbach proof method language and "match" method.
wenzelm@60119
   147
kuncar@60260
   148
* Winter 2014 and Spring 2015: Ondrej Kuncar, TUM
wenzelm@60261
   149
  Extension of lift_definition to execute lifted functions that have as a
wenzelm@60261
   150
  return type a datatype containing a subtype.
kuncar@60260
   151
wenzelm@59980
   152
* March 2015: Jasmin Blanchette, Inria & LORIA & MPII, Mathias Fleury, MPII,
wenzelm@59980
   153
  and Dmitriy Traytel, TUM
blanchet@59813
   154
  More multiset theorems, syntax, and operations.
blanchet@59813
   155
wenzelm@59980
   156
* December 2014: Johannes Hölzl, Manuel Eberl, Sudeep Kanav, TUM, and
wenzelm@59980
   157
  Jeremy Avigad, Luke Serafin, CMU
wenzelm@59980
   158
  Various integration theorems: mostly integration on intervals and
wenzelm@59980
   159
  substitution.
hoelzl@59092
   160
haftmann@58196
   161
* September 2014: Florian Haftmann, TUM
haftmann@58196
   162
  Lexicographic order on functions and
haftmann@58196
   163
  sum/product over function bodies.
haftmann@58196
   164
Andreas@58626
   165
* August 2014: Andreas Lochbihler, ETH Zurich
wenzelm@59980
   166
  Test infrastructure for executing generated code in target languages.
Andreas@58626
   167
haftmann@58023
   168
* August 2014: Manuel Eberl, TUM
wenzelm@59980
   169
  Generic euclidean algorithms for GCD et al.
haftmann@58023
   170
wenzelm@57695
   171
wenzelm@57452
   172
Contributions to Isabelle2014
wenzelm@57452
   173
-----------------------------
wenzelm@54055
   174
kleing@57513
   175
* July 2014: Thomas Sewell, NICTA
wenzelm@57516
   176
  Preserve equality hypotheses in "clarify" and friends. New
wenzelm@57516
   177
  "hypsubst_thin" method configuration option.
kleing@57513
   178
haftmann@57519
   179
* Summer 2014: Florian Haftmann, TUM
haftmann@57519
   180
  Consolidation and generalization of facts concerning (abelian)
haftmann@57519
   181
  semigroups and monoids, particularly products (resp. sums) on
haftmann@57519
   182
  finite sets.
haftmann@57419
   183
blanchet@57216
   184
* Summer 2014: Mathias Fleury, ENS Rennes, and Albert Steckermeier, TUM
wenzelm@57452
   185
  Work on exotic automatic theorem provers for Sledgehammer (LEO-II,
wenzelm@57452
   186
  veriT, Waldmeister, etc.).
blanchet@57216
   187
wenzelm@57875
   188
* June 2014: Florian Haftmann, TUM
wenzelm@57875
   189
  Internal reorganisation of the local theory / named target stack.
wenzelm@57875
   190
hoelzl@57254
   191
* June 2014: Sudeep Kanav, TUM, Jeremy Avigad, CMU, and Johannes Hölzl, TUM
wenzelm@57452
   192
  Various properties of exponentially, Erlang, and normal distributed
wenzelm@57452
   193
  random variables.
hoelzl@57235
   194
wenzelm@57452
   195
* May 2014: Cezary Kaliszyk, University of Innsbruck, and
wenzelm@57452
   196
  Jasmin Blanchette, TUM
blanchet@57030
   197
  SML-based engines for MaSh.
blanchet@57030
   198
wenzelm@55913
   199
* March 2014: René Thiemann
nipkow@55895
   200
  Improved code generation for multisets.
nipkow@55895
   201
haftmann@56416
   202
* February 2014: Florian Haftmann, TUM
wenzelm@57452
   203
  Permanent interpretation inside theory, locale and class targets
wenzelm@57452
   204
  with mixin definitions.
wenzelm@57452
   205
lp15@57474
   206
* Spring 2014: Lawrence C Paulson, Cambridge
lp15@57474
   207
  Theory Complex_Basic_Analysis. Tidying up Number_Theory vs Old_Number_Theory
lp15@57474
   208
wenzelm@57827
   209
* Winter 2013 and Spring 2014: Ondrej Kuncar, TUM
wenzelm@57827
   210
  Various improvements to Lifting/Transfer, integration with the BNF package.
wenzelm@57827
   211
wenzelm@57452
   212
* Winter 2013 and Spring 2014: Makarius Wenzel, Université Paris-Sud / LRI
wenzelm@57452
   213
  Improvements of Isabelle/Scala and Isabelle/jEdit Prover IDE.
haftmann@56416
   214
wenzelm@57452
   215
* Fall 2013 and Winter 2014: Martin Desharnais, Lorenz Panny,
wenzelm@57452
   216
  Dmitriy Traytel, and Jasmin Blanchette, TUM
wenzelm@57452
   217
  Various improvements to the BNF-based (co)datatype package,
wenzelm@57452
   218
  including a more polished "primcorec" command, optimizations, and
wenzelm@57452
   219
  integration in the "HOL" session.
blanchet@56118
   220
wenzelm@57452
   221
* Winter/Spring 2014: Sascha Boehme, QAware GmbH, and
wenzelm@57452
   222
  Jasmin Blanchette, TUM
wenzelm@57452
   223
  "SMT2" module and "smt2" proof method, based on SMT-LIB 2 and
wenzelm@57452
   224
  Z3 4.3.
blanchet@56118
   225
lars@55316
   226
* January 2014: Lars Hupel, TUM
lars@55316
   227
  An improved, interactive simplifier trace with integration into the
lars@55316
   228
  Isabelle/jEdit Prover IDE.
wenzelm@54055
   229
haftmann@56416
   230
* December 2013: Florian Haftmann, TUM
haftmann@56416
   231
  Consolidation of abstract interpretations concerning min and max.
haftmann@56416
   232
haftmann@56416
   233
* November 2013: Florian Haftmann, TUM
haftmann@56418
   234
  Abolition of negative numeral literals in the logic.
haftmann@56416
   235
wenzelm@55913
   236
wenzelm@53984
   237
Contributions to Isabelle2013-1
wenzelm@53984
   238
-------------------------------
wenzelm@50994
   239
noschinl@54363
   240
* September 2013: Lars Noschinski, TUM
wenzelm@54364
   241
  Conversion between function definitions as list of equations and
wenzelm@54364
   242
  case expressions in HOL.
wenzelm@54364
   243
  New library Simps_Case_Conv with commands case_of_simps,
wenzelm@54364
   244
  simps_of_case.
noschinl@54363
   245
wenzelm@53396
   246
* September 2013: Nik Sultana, University of Cambridge
wenzelm@53396
   247
  Improvements to HOL/TPTP parser and import facilities.
wenzelm@53396
   248
traytel@54029
   249
* September 2013: Johannes Hölzl and Dmitriy Traytel, TUM
traytel@54029
   250
  New "coinduction" method (residing in HOL-BNF) to avoid boilerplate.
traytel@54029
   251
wenzelm@53984
   252
* Summer 2013: Makarius Wenzel, Université Paris-Sud / LRI
wenzelm@53984
   253
  Improvements of Isabelle/Scala and Isabelle/jEdit Prover IDE.
wenzelm@53984
   254
krauss@53613
   255
* Summer 2013: Manuel Eberl, TUM
krauss@53613
   256
  Generation of elimination rules in the function package.
krauss@53613
   257
  New command "fun_cases".
krauss@53613
   258
wenzelm@54051
   259
* Summer 2013: Christian Sternagel, JAIST
wenzelm@54051
   260
  Improved support for ad hoc overloading of constants, including
wenzelm@54051
   261
  documentation and examples.
wenzelm@54051
   262
wenzelm@53396
   263
* Spring and Summer 2013: Lorenz Panny, Dmitriy Traytel, and
wenzelm@53396
   264
  Jasmin Blanchette, TUM
blanchet@56118
   265
  Various improvements to the BNF-based (co)datatype package, including
blanchet@54010
   266
  "primrec_new" and "primcorec" commands and a compatibility layer.
blanchet@53307
   267
kuncar@54021
   268
* Spring and Summer 2013: Ondrej Kuncar, TUM
wenzelm@54035
   269
  Various improvements of Lifting and Transfer packages.
kuncar@54021
   270
kuncar@54021
   271
* Spring 2013: Brian Huffman, Galois Inc.
wenzelm@54035
   272
  Improvements of the Transfer package.
wenzelm@54051
   273
blanchet@53728
   274
* Summer 2013: Daniel Kühlwein, ICIS, Radboud University Nijmegen
blanchet@53728
   275
  Jasmin Blanchette, TUM
blanchet@53728
   276
  Various improvements to MaSh, including a server mode.
blanchet@53728
   277
blanchet@53728
   278
* First half of 2013: Steffen Smolka, TUM
blanchet@53728
   279
  Further improvements to Sledgehammer's Isar proof generator.
blanchet@53728
   280
haftmann@52485
   281
* May 2013: Florian Haftmann, TUM
haftmann@52485
   282
  Ephemeral interpretation in local theories.
haftmann@52485
   283
bulwahn@52266
   284
* May 2013: Lukas Bulwahn and Nicolai Schaffroth, TUM
wenzelm@53164
   285
  Spec_Check: A Quickcheck tool for Isabelle/ML.
bulwahn@52266
   286
traytel@51682
   287
* April 2013: Stefan Berghofer, secunet Security Networks AG
traytel@51682
   288
  Dmitriy Traytel, TUM
traytel@51682
   289
  Makarius Wenzel, Université Paris-Sud / LRI
traytel@51682
   290
  Case translations as a separate check phase independent of the
traytel@51682
   291
  datatype package.
traytel@51682
   292
haftmann@51487
   293
* March 2013: Florian Haftmann, TUM
haftmann@51489
   294
  Reform of "big operators" on sets.
haftmann@51489
   295
haftmann@51489
   296
* March 2013: Florian Haftmann, TUM
haftmann@51487
   297
  Algebraic locale hierarchy for orderings and (semi)lattices.
haftmann@51487
   298
wenzelm@52503
   299
* February 2013: Florian Haftmann, TUM
wenzelm@52503
   300
  Reworking and consolidation of code generation for target language
wenzelm@52503
   301
  numerals.
haftmann@51167
   302
wenzelm@52503
   303
* February 2013: Florian Haftmann, TUM
haftmann@51173
   304
  Sieve of Eratosthenes.
haftmann@51173
   305
haftmann@51167
   306
wenzelm@50993
   307
Contributions to Isabelle2013
wenzelm@50993
   308
-----------------------------
wenzelm@47887
   309
wenzelm@49532
   310
* 2012: Makarius Wenzel, Université Paris-Sud / LRI
wenzelm@49532
   311
  Improvements of Isabelle/Scala and Isabelle/jEdit Prover IDE.
wenzelm@49532
   312
wenzelm@50648
   313
* Fall 2012: Daniel Kühlwein, ICIS, Radboud University Nijmegen
blanchet@50222
   314
  Jasmin Blanchette, TUM
blanchet@50222
   315
  Implemented Machine Learning for Sledgehammer (MaSh).
blanchet@50222
   316
blanchet@50219
   317
* Fall 2012: Steffen Smolka, TUM
wenzelm@50648
   318
  Various improvements to Sledgehammer's Isar proof generator,
wenzelm@50648
   319
  including a smart type annotation algorithm and proof shrinking.
blanchet@50219
   320
nipkow@50573
   321
* December 2012: Alessandro Coglio, Kestrel
wenzelm@50991
   322
  Contributions to HOL's Lattice library.
nipkow@50573
   323
hoelzl@50142
   324
* November 2012: Fabian Immler, TUM
wenzelm@50184
   325
  "Symbols" dockable for Isabelle/jEdit.
wenzelm@50184
   326
wenzelm@50184
   327
* November 2012: Fabian Immler, TUM
wenzelm@50184
   328
  Proof of the Daniell-Kolmogorov theorem: the existence of the limit
wenzelm@50184
   329
  of projective families.
hoelzl@50142
   330
Andreas@49770
   331
* October 2012: Andreas Lochbihler, KIT
wenzelm@50184
   332
  Efficient construction of red-black trees from sorted associative
wenzelm@50184
   333
  lists.
Andreas@49770
   334
haftmann@49190
   335
* September 2012: Florian Haftmann, TUM
haftmann@49190
   336
  Lattice instances for type option.
haftmann@49190
   337
Christian@49145
   338
* September 2012: Christian Sternagel, JAIST
Christian@49145
   339
  Consolidated HOL/Library (theories: Prefix_Order, Sublist, and
Christian@49145
   340
  Sublist_Order) w.r.t. prefixes, suffixes, and embedding on lists.
Christian@49145
   341
blanchet@48977
   342
* August 2012: Dmitriy Traytel, Andrei Popescu, Jasmin Blanchette, TUM
blanchet@49510
   343
  New BNF-based (co)datatype package.
blanchet@48977
   344
blanchet@48977
   345
* August 2012: Andrei Popescu and Dmitriy Traytel, TUM
blanchet@48977
   346
  Theories of ordinals and cardinals.
blanchet@48977
   347
wenzelm@48585
   348
* July 2012: Makarius Wenzel, Université Paris-Sud / LRI
wenzelm@48585
   349
  Advanced support for Isabelle sessions and build management, notably
wenzelm@48585
   350
  "isabelle build".
wenzelm@48585
   351
bulwahn@48111
   352
* June 2012: Felix Kuperjans, Lukas Bulwahn, TUM and Rafal Kolanski, NICTA
wenzelm@48585
   353
  Simproc for rewriting set comprehensions into pointfree expressions.
wenzelm@47887
   354
Andreas@49481
   355
* May 2012: Andreas Lochbihler, KIT
Andreas@49481
   356
  Theory of almost everywhere constant functions.
wenzelm@48124
   357
wenzelm@50648
   358
* 2010-2012: Markus Kaiser and Lukas Bulwahn, TUM
wenzelm@50648
   359
  Graphview in Scala/Swing.
wenzelm@50648
   360
wenzelm@50648
   361
wenzelm@47462
   362
Contributions to Isabelle2012
wenzelm@47462
   363
-----------------------------
wenzelm@45109
   364
hoelzl@47695
   365
* April 2012: Johannes Hölzl, TUM
wenzelm@47808
   366
  Probability: Introduced type to represent measures instead of
wenzelm@47808
   367
  locales.
hoelzl@47695
   368
hoelzl@47695
   369
* April 2012: Johannes Hölzl, Fabian Immler, TUM
hoelzl@47695
   370
  Float: Moved to Dyadic rationals to represent floating point numers.
hoelzl@47695
   371
wenzelm@47808
   372
* April 2012: Thomas Sewell, NICTA and
wenzelm@47808
   373
  2010: Sascha Boehme, TUM
wenzelm@47808
   374
  Theory HOL/Word/WordBitwise: logic/circuit expansion of bitvector
wenzelm@47808
   375
  equalities/inequalities.
thomas@47567
   376
wenzelm@47808
   377
* March 2012: Christian Sternagel, JAIST
bulwahn@47448
   378
  Consolidated theory of relation composition.
bulwahn@47448
   379
wenzelm@47413
   380
* March 2012: Nik Sultana, University of Cambridge
wenzelm@47413
   381
  HOL/TPTP parser and import facilities.
wenzelm@47413
   382
wenzelm@47462
   383
* March 2012: Cezary Kaliszyk, University of Innsbruck and
wenzelm@47462
   384
  Alexander Krauss, QAware GmbH
wenzelm@47462
   385
  Faster and more scalable Import mechanism for HOL Light proofs.
wenzelm@47462
   386
blanchet@47563
   387
* January 2012: Florian Haftmann, TUM, et al.
haftmann@46596
   388
  (Re-)Introduction of the "set" type constructor.
haftmann@46596
   389
kuncar@47700
   390
* 2012: Ondrej Kuncar, TUM
wenzelm@47808
   391
  New package Lifting, various improvements and refinements to the
wenzelm@47808
   392
  Quotient package.
kuncar@47700
   393
blanchet@47563
   394
* 2011/2012: Jasmin Blanchette, TUM
blanchet@47563
   395
  Various improvements to Sledgehammer, notably: tighter integration
wenzelm@47808
   396
  with SPASS, support for more provers (Alt-Ergo, iProver,
wenzelm@47808
   397
  iProver-Eq).
blanchet@47563
   398
wenzelm@47462
   399
* 2011/2012: Makarius Wenzel, Université Paris-Sud / LRI
wenzelm@47485
   400
  Various refinements of local theory infrastructure.
wenzelm@47462
   401
  Improvements of Isabelle/Scala layer and Isabelle/jEdit Prover IDE.
krauss@47265
   402
wenzelm@45109
   403
wenzelm@44801
   404
Contributions to Isabelle2011-1
wenzelm@44801
   405
-------------------------------
wenzelm@41651
   406
haftmann@44818
   407
* September 2011: Peter Gammie
huffman@44908
   408
  Theory HOL/Library/Saturated: numbers with saturated arithmetic.
haftmann@44818
   409
haftmann@44818
   410
* August 2011: Florian Haftmann, Johannes Hölzl and Lars Noschinski, TUM
haftmann@44818
   411
  Refined theory on complete lattices.
haftmann@44818
   412
wenzelm@44967
   413
* August 2011: Brian Huffman, Portland State University
wenzelm@44967
   414
  Miscellaneous cleanup of Complex_Main and Multivariate_Analysis.
wenzelm@44967
   415
wenzelm@44967
   416
* June 2011: Brian Huffman, Portland State University
wenzelm@44967
   417
  Proof method "countable_datatype" for theory Library/Countable.
wenzelm@44967
   418
wenzelm@44967
   419
* 2011: Jasmin Blanchette, TUM
wenzelm@44967
   420
  Various improvements to Sledgehammer, notably: use of sound
wenzelm@44967
   421
  translations, support for more provers (Waldmeister, LEO-II,
wenzelm@44967
   422
  Satallax). Further development of Nitpick and 'try' command.
wenzelm@44967
   423
wenzelm@44967
   424
* 2011: Andreas Lochbihler, Karlsruhe Institute of Technology
wenzelm@44967
   425
  Theory HOL/Library/Cset_Monad allows do notation for computable sets
wenzelm@44967
   426
  (cset) via the generic monad ad-hoc overloading facility.
wenzelm@44967
   427
wenzelm@44967
   428
* 2011: Johannes Hölzl, Armin Heller, TUM and
wenzelm@44967
   429
  Bogdan Grechuk, University of Edinburgh
wenzelm@44967
   430
  Theory HOL/Library/Extended_Reals: real numbers extended with plus
wenzelm@44967
   431
  and minus infinity.
wenzelm@44967
   432
wenzelm@44882
   433
* 2011: Makarius Wenzel, Université Paris-Sud / LRI
wenzelm@44882
   434
  Various building blocks for Isabelle/Scala layer and Isabelle/jEdit
wenzelm@44882
   435
  Prover IDE.
wenzelm@44882
   436
huffman@44908
   437
wenzelm@41512
   438
Contributions to Isabelle2011
wenzelm@41512
   439
-----------------------------
wenzelm@37383
   440
berghofe@41567
   441
* January 2011: Stefan Berghofer, secunet Security Networks AG
berghofe@41567
   442
  HOL-SPARK: an interactive prover back-end for SPARK.
berghofe@41567
   443
wenzelm@40379
   444
* October 2010: Bogdan Grechuk, University of Edinburgh
wenzelm@40379
   445
  Extended convex analysis in Multivariate Analysis.
wenzelm@40379
   446
wenzelm@40287
   447
* October 2010: Dmitriy Traytel, TUM
wenzelm@40287
   448
  Coercive subtyping via subtype constraints.
wenzelm@40287
   449
krauss@41531
   450
* October 2010: Alexander Krauss, TUM
krauss@41531
   451
  Command partial_function for function definitions based on complete
krauss@41531
   452
  partial orders in HOL.
krauss@41531
   453
haftmann@39644
   454
* September 2010: Florian Haftmann, TUM
wenzelm@41596
   455
  Refined concepts for evaluation, i.e., normalization of terms using
krauss@41531
   456
  different techniques.
haftmann@40120
   457
haftmann@40120
   458
* September 2010: Florian Haftmann, TUM
haftmann@39644
   459
  Code generation for Scala.
haftmann@39644
   460
hoelzl@38656
   461
* August 2010: Johannes Hoelzl, Armin Heller, and Robert Himmelmann, TUM
wenzelm@41596
   462
  Improved Probability theory in HOL.
hoelzl@38656
   463
haftmann@38461
   464
* July 2010: Florian Haftmann, TUM
haftmann@39644
   465
  Reworking and extension of the Imperative HOL framework.
haftmann@38461
   466
wenzelm@41596
   467
* July 2010: Alexander Krauss, TUM and Christian Sternagel, University
wenzelm@41596
   468
    of Innsbruck
krauss@41531
   469
  Ad-hoc overloading. Generic do notation for monads.
krauss@41531
   470
wenzelm@37383
   471
wenzelm@37144
   472
Contributions to Isabelle2009-2
wenzelm@41512
   473
-------------------------------
wenzelm@33951
   474
krauss@37303
   475
* 2009/2010: Stefan Berghofer, Alexander Krauss, and Andreas Schropp, TUM,
krauss@37303
   476
  Makarius Wenzel, TUM / LRI
krauss@37303
   477
  Elimination of type classes from proof terms.
krauss@37303
   478
wenzelm@37144
   479
* April 2010: Florian Haftmann, TUM
haftmann@36416
   480
  Reorganization of abstract algebra type classes.
haftmann@36416
   481
wenzelm@37144
   482
* April 2010: Florian Haftmann, TUM
haftmann@36416
   483
  Code generation for data representations involving invariants;
haftmann@36416
   484
  various collections avaiable in theories Fset, Dlist, RBT,
haftmann@36416
   485
  Mapping and AssocList.
haftmann@36416
   486
wenzelm@37144
   487
* March 2010: Sascha Boehme, TUM
wenzelm@37144
   488
  Efficient SHA1 library for Poly/ML.
wenzelm@37144
   489
wenzelm@37282
   490
* February 2010: Cezary Kaliszyk and Christian Urban, TUM
wenzelm@37282
   491
  Quotient type package for Isabelle/HOL.
wenzelm@37282
   492
wenzelm@26874
   493
wenzelm@33842
   494
Contributions to Isabelle2009-1
wenzelm@33842
   495
-------------------------------
bulwahn@33649
   496
haftmann@33862
   497
* November 2009, Brian Huffman, PSU
haftmann@33862
   498
  New definitional domain package for HOLCF.
haftmann@33862
   499
hoelzl@33759
   500
* November 2009: Robert Himmelmann, TUM
haftmann@33862
   501
  Derivation and Brouwer's fixpoint theorem in Multivariate Analysis.
hoelzl@33759
   502
wenzelm@33842
   503
* November 2009: Stefan Berghofer and Lukas Bulwahn, TUM
wenzelm@33842
   504
  A tabled implementation of the reflexive transitive closure.
bulwahn@33649
   505
bulwahn@33627
   506
* November 2009: Lukas Bulwahn, TUM
wenzelm@33842
   507
  Predicate Compiler: a compiler for inductive predicates to
wenzelm@33843
   508
  equational specifications.
blanchet@48977
   509
wenzelm@33897
   510
* November 2009: Sascha Boehme, TUM and Burkhart Wolff, LRI Paris
wenzelm@33842
   511
  HOL-Boogie: an interactive prover back-end for Boogie and VCC.
boehmes@33419
   512
blanchet@33192
   513
* October 2009: Jasmin Blanchette, TUM
wenzelm@33842
   514
  Nitpick: yet another counterexample generator for Isabelle/HOL.
blanchet@33192
   515
boehmes@33010
   516
* October 2009: Sascha Boehme, TUM
wenzelm@33182
   517
  Extension of SMT method: proof-reconstruction for the SMT solver Z3.
boehmes@33010
   518
boehmes@33010
   519
* October 2009: Florian Haftmann, TUM
wenzelm@33182
   520
  Refinement of parts of the HOL datatype package.
haftmann@33005
   521
boehmes@33010
   522
* October 2009: Florian Haftmann, TUM
wenzelm@33182
   523
  Generic term styles for term antiquotations.
haftmann@33005
   524
wenzelm@32762
   525
* September 2009: Thomas Sewell, NICTA
wenzelm@33182
   526
  More efficient HOL/record implementation.
wenzelm@32762
   527
boehmes@32618
   528
* September 2009: Sascha Boehme, TUM
wenzelm@33182
   529
  SMT method using external SMT solvers.
boehmes@32618
   530
haftmann@32600
   531
* September 2009: Florian Haftmann, TUM
wenzelm@33182
   532
  Refinement of sets and lattices.
haftmann@32600
   533
haftmann@32600
   534
* July 2009: Jeremy Avigad and Amine Chaieb
wenzelm@33182
   535
  New number theory.
haftmann@32600
   536
Philipp@32268
   537
* July 2009: Philipp Meyer, TUM
wenzelm@33182
   538
  HOL/Library/Sum_Of_Squares: functionality to call a remote csdp
wenzelm@33182
   539
  prover.
Philipp@32268
   540
haftmann@31997
   541
* July 2009: Florian Haftmann, TUM
wenzelm@33182
   542
  New quickcheck implementation using new code generator.
haftmann@31997
   543
haftmann@31997
   544
* July 2009: Florian Haftmann, TUM
haftmann@39644
   545
  HOL/Library/Fset: an explicit type of sets; finite sets ready to use
wenzelm@33182
   546
  for code generation.
haftmann@31466
   547
haftmann@31466
   548
* June 2009: Florian Haftmann, TUM
wenzelm@33843
   549
  HOL/Library/Tree: search trees implementing mappings, ready to use
wenzelm@33182
   550
  for code generation.
wenzelm@30978
   551
Philipp@32268
   552
* March 2009: Philipp Meyer, TUM
wenzelm@33843
   553
  Minimization tool for results from Sledgehammer.
wenzelm@33182
   554
Philipp@32268
   555
wenzelm@30978
   556
Contributions to Isabelle2009
wenzelm@30978
   557
-----------------------------
wenzelm@30978
   558
wenzelm@30383
   559
* March 2009: Robert Himmelmann, TUM and Amine Chaieb, University of
wenzelm@30383
   560
  Cambridge
wenzelm@30383
   561
  Elementary topology in Euclidean space.
wenzelm@30383
   562
wenzelm@30886
   563
* March 2009: Johannes Hoelzl, TUM
wenzelm@30886
   564
  Method "approximation", which proves real valued inequalities by
wenzelm@30886
   565
  computation.
wenzelm@30886
   566
wenzelm@30179
   567
* February 2009: Filip Maric, Univ. of Belgrade
wenzelm@30179
   568
  A Serbian theory.
wenzelm@30179
   569
wenzelm@30162
   570
* February 2009: Jasmin Christian Blanchette, TUM
wenzelm@30154
   571
  Misc cleanup of HOL/refute.
wenzelm@30154
   572
wenzelm@30162
   573
* February 2009: Timothy Bourke, NICTA
kleing@29883
   574
  New find_consts command.
kleing@29883
   575
wenzelm@30162
   576
* February 2009: Timothy Bourke, NICTA
kleing@29861
   577
  "solves" criterion for find_theorems and auto_solve option
kleing@29861
   578
haftmann@29398
   579
* December 2008: Clemens Ballarin, TUM
haftmann@29398
   580
  New locale implementation.
haftmann@29398
   581
krauss@29182
   582
* December 2008: Armin Heller, TUM and Alexander Krauss, TUM
krauss@29182
   583
  Method "sizechange" for advanced termination proofs.
krauss@29182
   584
kleing@28901
   585
* November 2008: Timothy Bourke, NICTA
kleing@28901
   586
  Performance improvement (factor 50) for find_theorems.
kleing@28901
   587
haftmann@29398
   588
* 2008: Florian Haftmann, TUM
haftmann@29398
   589
  Various extensions and restructurings in HOL, improvements
haftmann@29398
   590
  in evaluation mechanisms, new module binding.ML for name bindings.
haftmann@29398
   591
wenzelm@28604
   592
* October 2008: Fabian Immler, TUM
wenzelm@28604
   593
  ATP manager for Sledgehammer, based on ML threads instead of Posix
wenzelm@28604
   594
  processes.  Additional ATP wrappers, including remote SystemOnTPTP
wenzelm@28604
   595
  services.
wenzelm@28604
   596
wenzelm@30162
   597
* September 2008: Stefan Berghofer, TUM and Marc Bezem, Univ. Bergen
wenzelm@30162
   598
  Prover for coherent logic.
wenzelm@30162
   599
wenzelm@28474
   600
* August 2008: Fabian Immler, TUM
wenzelm@28474
   601
  Vampire wrapper script for remote SystemOnTPTP service.
wenzelm@28474
   602
wenzelm@28474
   603
wenzelm@28474
   604
Contributions to Isabelle2008
wenzelm@28474
   605
-----------------------------
wenzelm@28474
   606
wenzelm@27009
   607
* 2007/2008:
wenzelm@27009
   608
  Alexander Krauss, TUM and Florian Haftmann, TUM and Stefan Berghofer, TUM
wenzelm@27009
   609
  HOL library improvements.
wenzelm@25468
   610
wenzelm@27009
   611
* 2007/2008: Brian Huffman, PSU
wenzelm@27009
   612
  HOLCF library improvements.
wenzelm@27009
   613
wenzelm@27009
   614
* 2007/2008: Stefan Berghofer, TUM
wenzelm@30179
   615
  HOL-Nominal package improvements.
wenzelm@27009
   616
wenzelm@27009
   617
* March 2008: Markus Reiter, TUM
wenzelm@27009
   618
  HOL/Library/RBT: red-black trees.
haftmann@26728
   619
wenzelm@26874
   620
* February 2008: Alexander Krauss, TUM and Florian Haftmann, TUM and
wenzelm@26874
   621
  Lukas Bulwahn, TUM and John Matthews, Galois:
wenzelm@26874
   622
  HOL/Library/Imperative_HOL: Haskell-style imperative data structures
wenzelm@26874
   623
  for HOL.
haftmann@26728
   624
wenzelm@27009
   625
* December 2007: Norbert Schirmer, Uni Saarbruecken
wenzelm@27009
   626
  Misc improvements of record package in HOL.
wenzelm@27009
   627
wenzelm@27009
   628
* December 2007: Florian Haftmann, TUM
wenzelm@27009
   629
  Overloading and class instantiation target.
wenzelm@27009
   630
wenzelm@27009
   631
* December 2007: Florian Haftmann, TUM
wenzelm@27009
   632
  New version of primrec package for local theories.
wenzelm@27009
   633
wenzelm@27009
   634
* December 2007: Alexander Krauss, TUM
wenzelm@27009
   635
  Method "induction_scheme" in HOL.
wenzelm@27009
   636
wenzelm@27009
   637
* November 2007: Peter Lammich, Uni Muenster
wenzelm@27009
   638
  HOL-Lattice: some more lemmas.
wenzelm@26198
   639
wenzelm@26874
   640
wenzelm@25454
   641
Contributions to Isabelle2007
wenzelm@25454
   642
-----------------------------
wenzelm@23252
   643
schirmer@25409
   644
* October 2007: Norbert Schirmer, TUM / Uni Saarbruecken
wenzelm@25398
   645
  State Spaces: The Locale Way (in HOL).
wenzelm@25398
   646
wenzelm@25057
   647
* October 2007: Mark A. Hillebrand, DFKI
wenzelm@25057
   648
  Robust sub/superscripts in LaTeX document output.
wenzelm@25057
   649
wenzelm@24799
   650
* August 2007: Jeremy Dawson, NICTA and Paul Graunke, Galois and Brian
wenzelm@24799
   651
    Huffman, PSU and Gerwin Klein, NICTA and John Matthews, Galois
kleing@24333
   652
  HOL-Word: a library for fixed-size machine words in Isabelle.
kleing@24333
   653
kleing@24332
   654
* August 2007: Brian Huffman, PSU
wenzelm@24799
   655
  HOL/Library/Boolean_Algebra and HOL/Library/Numeral_Type.
kleing@24332
   656
wenzelm@23252
   657
* June 2007: Amine Chaieb, TUM
wenzelm@24799
   658
  Semiring normalization and Groebner Bases.
wenzelm@25449
   659
  Support for dense linear orders.
wenzelm@17866
   660
paulson@23449
   661
* June 2007: Joe Hurd, Oxford
wenzelm@24799
   662
  Metis theorem-prover.
wenzelm@24799
   663
wenzelm@24799
   664
* 2007: Kong W. Susanto, Cambridge
wenzelm@24799
   665
  HOL: Metis prover integration.
paulson@23449
   666
wenzelm@24799
   667
* 2007: Stefan Berghofer, TUM
wenzelm@25449
   668
  HOL: inductive predicates and sets.
wenzelm@24799
   669
wenzelm@24803
   670
* 2007: Norbert Schirmer, TUM
wenzelm@24803
   671
  HOL/record: misc improvements.
wenzelm@24803
   672
wenzelm@24799
   673
* 2006/2007: Alexander Krauss, TUM
wenzelm@24799
   674
  HOL: function package and related theories on termination.
paulson@23449
   675
haftmann@22449
   676
* 2006/2007: Florian Haftmann, TUM
haftmann@22449
   677
  Pure: generic code generator framework.
haftmann@22449
   678
  Pure: class package.
wenzelm@24799
   679
  HOL: theory reorganization, code generator setup.
wenzelm@24799
   680
wenzelm@25449
   681
* 2006/2007: Christian Urban, TUM and Stefan Berghofer, TUM and
wenzelm@25449
   682
    Julien Narboux, TUM
wenzelm@24799
   683
  HOL/Nominal package and related tools.
haftmann@22449
   684
wenzelm@21242
   685
* November 2006: Lukas Bulwahn, TUM
wenzelm@24799
   686
  HOL: method "lexicographic_order" for function package.
wenzelm@21242
   687
wenzelm@21169
   688
* October 2006: Stefan Hohe, TUM
wenzelm@21169
   689
  HOL-Algebra: ideals and quotients over rings.
wenzelm@21169
   690
wenzelm@20340
   691
* August 2006: Amine Chaieb, TUM
wenzelm@20340
   692
  Experimental support for generic reflection and reification in HOL.
wenzelm@20340
   693
kleing@20067
   694
* July 2006: Rafal Kolanski, NICTA
kleing@20067
   695
  Hex (0xFF) and binary (0b1011) numerals.
kleing@20067
   696
nipkow@19896
   697
* May 2006: Klaus Aehlig, LMU
nipkow@19896
   698
  Command 'normal_form': normalization by evaluation.
nipkow@19896
   699
wenzelm@19650
   700
* May 2006: Amine Chaieb, TUM
wenzelm@19650
   701
  HOL-Complex: Ferrante and Rackoff Algorithm for linear real
wenzelm@19650
   702
  arithmetic.
kleing@19470
   703
kleing@19470
   704
* February 2006: Benjamin Porter, NICTA
kleing@23382
   705
  HOL and HOL-Complex: generalised mean value theorem, continuum is
kleing@19470
   706
  not denumerable, harmonic and arithmetic series, and denumerability
kleing@19470
   707
  of rationals.
wenzelm@17532
   708
wenzelm@19650
   709
* October 2005: Martin Wildmoser, TUM
wenzelm@19650
   710
  Sketch for Isar 'guess' element.
wenzelm@19650
   711
wenzelm@19650
   712
wenzelm@25454
   713
Contributions to Isabelle2005
wenzelm@25454
   714
-----------------------------
wenzelm@17382
   715
wenzelm@17640
   716
* September 2005: Lukas Bulwahn and Bernhard Haeupler, TUM
wenzelm@17640
   717
  HOL-Complex: Formalization of Taylor series.
wenzelm@17640
   718
wenzelm@17640
   719
* September 2005: Stephan Merz, Alwen Tiu, QSL Loria
wenzelm@17640
   720
  Components for SAT solver method using zChaff.
wenzelm@17640
   721
wenzelm@17534
   722
* September 2005: Ning Zhang and Christian Urban, LMU Munich
wenzelm@17534
   723
  A Chinese theory.
wenzelm@17534
   724
wenzelm@17562
   725
* September 2005: Bernhard Haeupler, TUM
wenzelm@17382
   726
  Method comm_ring for proving equalities in commutative rings.
wenzelm@16892
   727
wenzelm@17532
   728
* July/August 2005: Jeremy Avigad, Carnegie Mellon University
wenzelm@16892
   729
  Various improvements of the HOL and HOL-Complex library.
wenzelm@16868
   730
wenzelm@16892
   731
* July 2005: Florian Zuleger, Johannes Hoelzl, and Simon Funke, TUM
wenzelm@16892
   732
  Some structured proofs about completeness of real numbers.
wenzelm@16892
   733
wenzelm@17532
   734
* May 2005: Rafal Kolanski and Gerwin Klein, NICTA
wenzelm@17532
   735
  Improved retrieval of facts from theory/proof context.
wenzelm@15994
   736
wenzelm@16252
   737
* February 2005: Lucas Dixon, University of Edinburgh
wenzelm@17532
   738
  Improved subst method.
wenzelm@17532
   739
wenzelm@17532
   740
* 2005: Brian Huffman, OGI
wenzelm@17532
   741
  Various improvements of HOLCF.
wenzelm@17532
   742
  Some improvements of the HOL-Complex library.
wenzelm@17532
   743
wenzelm@17532
   744
* 2005: Claire Quigley and Jia Meng, University of Cambridge
wenzelm@17532
   745
  Some support for asynchronous communication with external provers
wenzelm@17532
   746
  (experimental).
wenzelm@17532
   747
wenzelm@17532
   748
* 2005: Florian Haftmann, TUM
wenzelm@17543
   749
  Contributions to document 'sugar'.
wenzelm@17532
   750
  Various ML combinators, notably linear functional transformations.
wenzelm@17532
   751
  Some cleanup of ML legacy.
wenzelm@17532
   752
  Additional antiquotations.
wenzelm@17532
   753
  Improved Isabelle web site.
wenzelm@17532
   754
wenzelm@17532
   755
* 2004/2005: David Aspinall, University of Edinburgh
wenzelm@17532
   756
  Various elements of XML and PGIP based communication with user
wenzelm@17532
   757
  interfaces (experimental).
wenzelm@17532
   758
wenzelm@17532
   759
* 2004/2005: Gerwin Klein, NICTA
wenzelm@17532
   760
  Contributions to document 'sugar'.
wenzelm@17532
   761
  Improved Isabelle web site.
wenzelm@17532
   762
  Improved HTML presentation of theories.
wenzelm@17532
   763
wenzelm@17532
   764
* 2004/2005: Clemens Ballarin, TUM
wenzelm@17532
   765
  Provers: tools for transitive relations and quasi orders.
wenzelm@17532
   766
  Improved version of locales, notably interpretation of locales.
wenzelm@17532
   767
  Improved version of HOL-Algebra.
wenzelm@17532
   768
wenzelm@17532
   769
* 2004/2005: Amine Chaieb, TUM
wenzelm@17532
   770
  Improved version of HOL presburger method.
wenzelm@17532
   771
wenzelm@17532
   772
* 2004/2005: Steven Obua, TUM
wenzelm@17532
   773
  Improved version of HOL/Import, support for HOL-Light.
wenzelm@17532
   774
  Improved version of HOL-Complex-Matrix.
wenzelm@17572
   775
  Pure/defs: more sophisticated checks on well-formedness of overloading.
wenzelm@17543
   776
  Pure/Tools: an experimental evaluator for lambda terms.
wenzelm@17532
   777
wenzelm@17532
   778
* 2004/2005: Norbert Schirmer, TUM
wenzelm@17532
   779
  Contributions to document 'sugar'.
wenzelm@17532
   780
  Improved version of HOL/record.
wenzelm@17532
   781
wenzelm@17532
   782
* 2004/2005: Sebastian Skalberg, TUM
wenzelm@17532
   783
  Improved version of HOL/Import.
wenzelm@17532
   784
  Some internal ML reorganizations.
wenzelm@17532
   785
wenzelm@17532
   786
* 2004/2005: Tjark Weber, TUM
wenzelm@17640
   787
  SAT solver method using zChaff.
wenzelm@17532
   788
  Improved version of HOL/refute.
wenzelm@62098
   789
wenzelm@62098
   790
:maxLineLen=78: