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CONTRIBUTORS
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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 distribution.
Contributions to this Isabelle version
--------------------------------------
Contributions to Isabelle2025
-----------------------------
* October 2024 - January 2025: Lukas Bartl, Universität Augsburg
Inference of variable instantiations with Metis.
* 2024: Fabian Huch, TU München
Find_Facts search engine: web application based on Apache Solr.
* 2024: Fabian Huch, TU München
Build_Manager for distrubuted cluster, with web front-end (supersedes
Jenkins).
* April - October 2024: Thomas Lindae and Fabian Huch, TU München
Improvements to the language server for Isabelle/VSCode.
* June - July 2024: Fabian Huch
New Build_Manager module to coordinate CI and user builds, replacing
the previous Jenkins integration.
Contributions to Isabelle2024
-----------------------------
* April 2024: Manuel Eberl, Katharina Kreuzer
Some material on finite fields and the characteristic of a ring in HOL,
HOL-Computational_Algebra, and HOL-Number_Theory.
Also a type constructor for the algebraic closure of a field.
* March 2024: Manuel Eberl
Weierstraß Factorization Theorem in HOL-Complex_Analysis.
* March 2024: Ata Keskin
Analysis lemmas drawn from the Martingales AFP entry.
* March 2024: Anthony Bordg, Manuel Eberl, Wenda Li, Larry Paulson
New and more general definition of meromorphicity in HOL-Complex_Analysis.
* Feb/March 2024: Simon Wimmer
Improvements to HOL-ex.Sketch_and_Explore.
* Feb/March 2024: Jonas Stahl
Automatic translation of HOL functions into corresponding step-counting
running-time functions.
* 2023/2024: Makarius Wenzel and Fabian Huch
More robust and scalable support for distributed build clusters.
* October 2023: Fabian Huch
Support for SMTP mailing in Isabelle/Scala.
Contributions to Isabelle2023
-----------------------------
* August 2022 - July 2023: Hannah Lachnitt, Stanford and Mathias Fleury, UFR
Start work toward reconstructing cvc5 proof in the SMT method. This
is currently very experimental and is also changing on the cvc5 side.
* October 2022: Jeremy Sylvestre
Lemmas for Fun and List.
* 2022/2023: Makarius Wenzel
Support for interactive document preparation in PIDE, including demo
documents for well-known LaTeX styles.
* March 2023 - June 2023: Makarius Wenzel
ML heap usage and stored heap size has been significantly reduced;
based on new command-line tool "isabelle profiling".
* 2023: Makarius Wenzel and Fabian Huch
Support for distributed build clusters, based on SSH and PostgreSQL.
Contributions to Isabelle2022
-----------------------------
* August 2022: Norbert Schirmer, Apple
Record simproc that sorts update expressions.
* June 2022: Jan van Brügge, TU München
Strict cardinality bounds for BNFs.
* April - August 2021: Denis Paluca and Fabian Huch, TU München
Various improvements to Isabelle/VSCode.
* March 2021: Florian Haftmann, TU München
More ambitious minimization of case expressions in generated code;
code generation: type annotations in pattern bindings are printed in a
way suitable for Scala 3.
* July 2022: Florian Haftmann, TU München and René Thiemann, UIBK
Theory Code_Abstract_Char implements characters by target language
integers, sacrificing pattern patching in exchange for dramatically
increased performance for comparisions.
* November 2021, July - August 2022: Fabian Huch and Makarius Wenzel
Improved HTML presentation.
Contributions to Isabelle2021-1
-------------------------------
* September / October 2021: Jasmin Blanchette, Martin Desharnais,
Mathias Fleury, Makarius Wenzel
Upgrade of automatic theorem provers in Sledgehammer and the "smt" proof
method.
* July - September 2021: Makarius Wenzel
Significantly improved Isabelle/Haskell library.
* July - September 2021: Jasmin Blanchette, Martin Desharnais
Various improvements to Sledgehammer.
* September 2021: Dominique Unruh
New theory of infinite sums (theory HOL-Analysis.Infinite_Sum), ordering of
complex numbers (theory HOL-Library.Complex_Order), and products of uniform
spaces (theory HOL-Analysis.Product_Vector).
* August 2021: Fabian Huch, TU München
Improved HTML presentation: links to formal entities.
* November 2020 / July 2021: Norbert Schirmer, Apple
Various improvements and cleanup of session "HOL-Statespace".
* July 2021: Florian Haftmann
Further consolidation of bit operations and word types.
* June 2021: Florian Haftmann
More context situations susceptible to global_interpretation.
* March 2021: Lukas Stevens
New order prover.
* March 2021: Florian Haftmann
Dedicated session for combinatorics.
* March 2021: Simon Foster and Leo Freitas
More symbol definitions for Z Notation: Isabelle fonts and LaTeX macros.
* February 2021: Manuel Eberl
New material in sessions HOL-Analysis and HOL-Probability, most notably
Hoeffding's inequality and the negative binomial distribution
* January 2021: Jakub Kądziołka
Some lemmas for HOL-Computational_Algebra.
* January 2021: Martin Rasyzk
Fast set operations for red-black trees.
Contributions to Isabelle2021
-----------------------------
* January 2021: Manuel Eberl
Characteristic of a semiring.
* January 2021: Manuel Eberl
Algebraic integers in HOL-Computational_Algebra.
* December 2020: Stepan Holub
Contributed lemmas for theory HOL.List.
* December 2020: Martin Desharnais
Zipperposition 2.0 as external prover for Sledgehammer.
* December 2020: Walter Guttmann
Extension of session HOL-Hoare with total correctness proof system.
* November / December 2020: Makarius Wenzel
Improved HTML presentation and PDF document preparation, using mostly
Isabelle/Scala instead of Isabelle/ML.
* November 2020: Stepan Holub
Removed preconditions from lemma comm_append_are_replicate.
* November 2020: Florian Haftmann
Bundle mixins for locale and class expressions.
* November 2020: Jakub Kądziołka
Stronger lemmas about orders of group elements (generate_pow_card).
* October 2020: Jasmin Blanchette, Martin Desharnais, Mathias Fleury
Support veriT as external prover in Sledgehammer.
* October 2020: Mathias Fleury
Updated proof reconstruction for the SMT solver veriT in the smt method.
* October 2020: Jasmin Blanchette, Martin Desharnais
Support E prover 2.5 as external prover in Sledgehammer.
* September 2020: Florian Haftmann
Substantial reworking and modularization of Word library, with generic type
conversions.
* August 2020: Makarius Wenzel
Finally enable PIDE protocol for batch-builds, with various consequences of
handling session build databases, Isabelle/Scala within Isabelle/ML etc.
* August 2020: Makarius Wenzel
Improved monitoring of runtime statistics: ML GC progress and Java.
* July 2020: Martin Desharnais
Update to Metis 2.4.
* June 2020: Makarius Wenzel
Batch-builds via "isabelle build" allow to invoke Scala from ML.
* June 2020: Florian Haftmann
Simproc defined_all for more aggressive substitution with variables
from assumptions.
* May 2020: Makarius Wenzel
Antiquotations for Isabelle systems programming, notably @{scala_function}
and @{scala} to invoke Scala from ML.
* May 2020: Florian Haftmann
Generic algebraically founded bit operations NOT, AND, OR, XOR.
Contributions to Isabelle2020
-----------------------------
* February 2020: E. Gunther, M. Pagano and P. Sánchez Terraf
Simplified, generalised version of ZF/Constructible.
* January 2020: LC Paulson
The full finite Ramsey's theorem and elements of finite and infinite
Ramsey theory.
* December 2019: Basil Fürer, Andreas Lochbihler, Joshua Schneider, Dmitriy
Traytel
Extension of lift_bnf to support quotient types.
* November 2019: Peter Zeller, TU Kaiserslautern
Update of Isabelle/VSCode to WebviewPanel API.
* October..December 2019: Makarius Wenzel
Isabelle/Phabrictor server setup, including Linux platform support in
Isabelle/Scala. Client-side tool "isabelle hg_setup".
* October 2019: Maximilian Schäffeler
Port of the HOL Light decision procedure for metric spaces.
* October 2019: Makarius Wenzel
More scalable Isabelle dump and underlying headless PIDE session.
* August 2019: Makarius Wenzel
Better support for proof terms in Isabelle/Pure, notably via method
combinator SUBPROOFS (ML) and "subproofs" (Isar).
* July 2019: Alexander Krauss, Makarius Wenzel
Minimal support for a soft-type system within the Isabelle logical
framework.
Contributions to Isabelle2019
-----------------------------
* April 2019: LC Paulson
Homology and supporting lemmas on topology and group theory
* April 2019: Paulo de Vilhena and Martin Baillon
Group theory developments, esp. algebraic closure of a field
* February/March 2019: Makarius Wenzel
Stateless management of export artifacts in the Isabelle/HOL code generator.
* February 2019: Manuel Eberl
Exponentiation by squaring, used to implement "power" in monoid_mult and
fast modular exponentiation.
* February 2019: Manuel Eberl
Carmichael's function, primitive roots in residue rings, more properties of
the order in residue rings.
* February 2019: Jeremy Sylvestre
Formal Laurent Series and overhaul of Formal power series.
* January 2019: Florian Haftmann
Clarified syntax and congruence rules for big operators on sets involving
the image operator.
* January 2019: Florian Haftmann
Renovation of code generation, particularly export into session data and
proper strings and proper integers based on zarith for OCaml.
* January 2019: Andreas Lochbihler
New implementation for case_of_simps based on Code_Lazy's pattern matching
elimination algorithm.
* November/December 2018: Makarius Wenzel
Support for Isabelle/Haskell applications of Isabelle/PIDE.
* August/September 2018: Makarius Wenzel
Improvements of headless Isabelle/PIDE session and server, and systematic
exports from theory documents.
* December 2018: Florian Haftmann
Generic executable sorting algorithms based on executable comparators.
* October 2018: Mathias Fleury
Proof reconstruction for the SMT solver veriT in the smt method.
Contributions to Isabelle2018
-----------------------------
* July 2018: Manuel Eberl
"real_asymp" proof method for automatic proofs of real limits, "Big-O"
statements, etc.
* June 2018: Fabian Immler
More tool support for HOL-Types_To_Sets.
* June 2018: Martin Baillon and Paulo Emílio de Vilhena
A variety of contributions to HOL-Algebra.
* June 2018: Wenda Li
New/strengthened results involving analysis, topology, etc.
* May/June 2018: Makarius Wenzel
System infrastructure to export blobs as theory presentation, and to dump
PIDE database content in batch mode.
* May 2018: Manuel Eberl
Landau symbols and asymptotic equivalence (moved from the AFP).
* May 2018: Jose Divasón (Universidad de la Rioja),
Jesús Aransay (Universidad de la Rioja), Johannes Hölzl (VU Amsterdam),
Fabian Immler (TUM)
Generalizations in the formalization of linear algebra.
* May 2018: Florian Haftmann
Consolidation of string-like types in HOL.
* May 2018: Andreas Lochbihler (Digital Asset),
Pascal Stoop (ETH Zurich)
Code generation with lazy evaluation semantics.
* March 2018: Florian Haftmann
Abstract bit operations push_bit, take_bit, drop_bit, alongside with an
algebraic foundation for bit strings and word types in HOL-ex.
* March 2018: Viorel Preoteasa
Generalisation of complete_distrib_lattice
* February 2018: Wenda Li
A unified definition for the order of zeros and poles. Improved reasoning
around non-essential singularities.
* January 2018: Sebastien Gouezel
Various small additions to HOL-Analysis
* December 2017: Jan Gilcher, Andreas Lochbihler, Dmitriy Traytel
A new conditional parametricity prover.
* October 2017: Alexander Maletzky
Derivation of axiom "iff" in theory HOL.HOL from the other axioms.
Contributions to Isabelle2017
-----------------------------
* September 2017: Lawrence Paulson
HOL-Analysis, e.g. simplicial complexes, Jordan Curve Theorem.
* September 2017: Jasmin Blanchette
Further integration of Nunchaku model finder.
* November 2016 - June 2017: Makarius Wenzel
New Isabelle/VSCode, with underlying restructuring of Isabelle/PIDE.
* 2017: Makarius Wenzel
Session-qualified theory names (theory imports and ROOT files).
Prover IDE improvements.
Support for SQL databases in Isabelle/Scala: SQLite and PostgreSQL.
* August 2017: Andreas Lochbihler, ETH Zurich
type of unordered pairs (HOL-Library.Uprod)
* August 2017: Manuel Eberl, TUM
HOL-Analysis: infinite products over natural numbers,
infinite sums over arbitrary sets, connection between formal
power series and analytic complex functions
* March 2017: Alasdair Armstrong, University of Sheffield and
Simon Foster, University of York
Fixed-point theory and Galois Connections in HOL-Algebra.
* February 2017: Florian Haftmann, TUM
Statically embedded computations implemented by generated code.
Contributions to Isabelle2016-1
-------------------------------
* December 2016: Ondřej Kunčar, TUM
Types_To_Sets: experimental extension of Higher-Order Logic to allow
translation of types to sets.
* October 2016: Jasmin Blanchette
Integration of Nunchaku model finder.
* October 2016: Jaime Mendizabal Roche, TUM
Ported remaining theories of session Old_Number_Theory to the new
Number_Theory and removed Old_Number_Theory.
* September 2016: Sascha Boehme
Proof method "argo" based on SMT technology for a combination of
quantifier-free propositional logic, equality and linear real arithmetic
* July 2016: Daniel Stuewe
Height-size proofs in HOL-Data_Structures.
* July 2016: Manuel Eberl, TUM
Algebraic foundation for primes; generalization from nat to general
factorial rings.
* June 2016: Andreas Lochbihler, ETH Zurich
Formalisation of discrete subprobability distributions.
* June 2016: Florian Haftmann, TUM
Improvements to code generation: optional timing measurements, more succint
closures for static evaluation, less ambiguities concering Scala implicits.
* May 2016: Manuel Eberl, TUM
Code generation for Probability Mass Functions.
* March 2016: Florian Haftmann, TUM
Abstract factorial rings with unique factorization.
* March 2016: Florian Haftmann, TUM
Reworking of the HOL char type as special case of a finite numeral type.
* March 2016: Andreas Lochbihler, ETH Zurich
Reasoning support for monotonicity, continuity and admissibility in
chain-complete partial orders.
* February - October 2016: Makarius Wenzel
Prover IDE improvements.
ML IDE improvements: bootstrap of Pure.
Isar language consolidation.
Notational modernization of HOL.
Tight Poly/ML integration.
More Isabelle/Scala system programming modules (e.g. SSH, Mercurial).
* Winter 2016: Jasmin Blanchette, Inria & LORIA & MPII, Aymeric Bouzy,
Ecole polytechnique, Andreas Lochbihler, ETH Zurich, Andrei Popescu,
Middlesex University, and Dmitriy Traytel, ETH Zurich
'corec' command and friends.
* January 2016: Florian Haftmann, TUM
Abolition of compound operators INFIMUM and SUPREMUM for complete lattices.
Contributions to Isabelle2016
-----------------------------
* Winter 2016: Manuel Eberl, TUM
Support for real exponentiation ("powr") in the "approximation" method.
(This was removed in Isabelle 2015 due to a changed definition of "powr".)
* Summer 2015 - Winter 2016: Lawrence C Paulson, Cambridge
General, homology form of Cauchy's integral theorem and supporting material
(ported from HOL Light).
* Winter 2015/16: Gerwin Klein, NICTA
New print_record command.
* May - December 2015: Makarius Wenzel
Prover IDE improvements.
More Isar language elements.
Document language refinements.
Poly/ML debugger integration.
Improved multi-platform and multi-architecture support.
* Winter 2015: Manuel Eberl, TUM
The radius of convergence of power series and various summability tests.
Harmonic numbers and the Euler-Mascheroni constant.
The Generalised Binomial Theorem.
The complex and real Gamma/log-Gamma/Digamma/Polygamma functions and their
most important properties.
* Autumn 2015: Manuel Eberl, TUM
Proper definition of division (with remainder) for formal power series;
Euclidean Ring and GCD instance for formal power series.
* Autumn 2015: Florian Haftmann, TUM
Rewrite definitions for global interpretations and sublocale declarations.
* Autumn 2015: Andreas Lochbihler
Bourbaki-Witt fixpoint theorem for increasing functions on chain-complete
partial orders.
* Autumn 2015: Chaitanya Mangla, Lawrence C Paulson, and Manuel Eberl
A large number of additional binomial identities.
* Summer 2015: Daniel Matichuk, NICTA and Makarius Wenzel
Isar subgoal command for proof structure within unstructured proof scripts.
* Summer 2015: Florian Haftmann, TUM
Generic partial division in rings as inverse operation of multiplication.
* Summer 2015: Manuel Eberl and Florian Haftmann, TUM
Type class hierarchy with common algebraic notions of integral (semi)domains
like units, associated elements and normalization wrt. units.
* Summer 2015: Florian Haftmann, TUM
Fundamentals of abstract type class for factorial rings.
* Summer 2015: Julian Biendarra, TUM and Dmitriy Traytel, ETH Zurich
Command to lift a BNF structure on the raw type to the abstract type for
typedefs.
* Summer 2014: Jeremy Avigad, Luke Serafin, CMU, and Johannes Hölzl, TUM
Proof of the central limit theorem: includes weak convergence,
characteristic functions, and Levy's uniqueness and continuity theorem.
Contributions to Isabelle2015
-----------------------------
* 2014/2015: Daniel Matichuk, Toby Murray, NICTA and Makarius Wenzel
The Eisbach proof method language and "match" method.
* Winter 2014 and Spring 2015: Ondrej Kuncar, TUM
Extension of lift_definition to execute lifted functions that have as a
return type a datatype containing a subtype.
* March 2015: Jasmin Blanchette, Inria & LORIA & MPII, Mathias Fleury, MPII,
and Dmitriy Traytel, TUM
More multiset theorems, syntax, and operations.
* December 2014: Johannes Hölzl, Manuel Eberl, Sudeep Kanav, TUM, and
Jeremy Avigad, Luke Serafin, CMU
Various integration theorems: mostly integration on intervals and
substitution.
* September 2014: Florian Haftmann, TUM
Lexicographic order on functions and
sum/product over function bodies.
* August 2014: Andreas Lochbihler, ETH Zurich
Test infrastructure for executing generated code in target languages.
* August 2014: Manuel Eberl, TUM
Generic euclidean algorithms for GCD et al.
Contributions to Isabelle2014
-----------------------------
* July 2014: Thomas Sewell, NICTA
Preserve equality hypotheses in "clarify" and friends. New
"hypsubst_thin" method configuration option.
* Summer 2014: Florian Haftmann, TUM
Consolidation and generalization of facts concerning (abelian)
semigroups and monoids, particularly products (resp. sums) on
finite sets.
* Summer 2014: Mathias Fleury, ENS Rennes, and Albert Steckermeier, TUM
Work on exotic automatic theorem provers for Sledgehammer (LEO-II,
veriT, Waldmeister, etc.).
* June 2014: Florian Haftmann, TUM
Internal reorganisation of the local theory / named target stack.
* June 2014: Sudeep Kanav, TUM, Jeremy Avigad, CMU, and Johannes Hölzl, TUM
Various properties of exponentially, Erlang, and normal distributed
random variables.
* May 2014: Cezary Kaliszyk, University of Innsbruck, and
Jasmin Blanchette, TUM
SML-based engines for MaSh.
* March 2014: René Thiemann
Improved code generation for multisets.
* February 2014: Florian Haftmann, TUM
Permanent interpretation inside theory, locale and class targets
with mixin definitions.
* Spring 2014: Lawrence C Paulson, Cambridge
Theory Complex_Basic_Analysis. Tidying up Number_Theory vs Old_Number_Theory
* Winter 2013 and Spring 2014: Ondrej Kuncar, TUM
Various improvements to Lifting/Transfer, integration with the BNF package.
* Winter 2013 and Spring 2014: Makarius Wenzel, Université Paris-Sud / LRI
Improvements of Isabelle/Scala and Isabelle/jEdit Prover IDE.
* Fall 2013 and Winter 2014: Martin Desharnais, Lorenz Panny,
Dmitriy Traytel, and Jasmin Blanchette, TUM
Various improvements to the BNF-based (co)datatype package,
including a more polished "primcorec" command, optimizations, and
integration in the "HOL" session.
* Winter/Spring 2014: Sascha Boehme, QAware GmbH, and
Jasmin Blanchette, TUM
"SMT2" module and "smt2" proof method, based on SMT-LIB 2 and
Z3 4.3.
* January 2014: Lars Hupel, TUM
An improved, interactive simplifier trace with integration into the
Isabelle/jEdit Prover IDE.
* December 2013: Florian Haftmann, TUM
Consolidation of abstract interpretations concerning min and max.
* November 2013: Florian Haftmann, TUM
Abolition of negative numeral literals in the logic.
Contributions to Isabelle2013-1
-------------------------------
* September 2013: Lars Noschinski, TUM
Conversion between function definitions as list of equations and
case expressions in HOL.
New library Simps_Case_Conv with commands case_of_simps,
simps_of_case.
* September 2013: Nik Sultana, University of Cambridge
Improvements to HOL/TPTP parser and import facilities.
* September 2013: Johannes Hölzl and Dmitriy Traytel, TUM
New "coinduction" method (residing in HOL-BNF) to avoid boilerplate.
* Summer 2013: Makarius Wenzel, Université Paris-Sud / LRI
Improvements of Isabelle/Scala and Isabelle/jEdit Prover IDE.
* Summer 2013: Manuel Eberl, TUM
Generation of elimination rules in the function package.
New command "fun_cases".
* Summer 2013: Christian Sternagel, JAIST
Improved support for ad hoc overloading of constants, including
documentation and examples.
* Spring and Summer 2013: Lorenz Panny, Dmitriy Traytel, and
Jasmin Blanchette, TUM
Various improvements to the BNF-based (co)datatype package, including
"primrec_new" and "primcorec" commands and a compatibility layer.
* Spring and Summer 2013: Ondrej Kuncar, TUM
Various improvements of Lifting and Transfer packages.
* Spring 2013: Brian Huffman, Galois Inc.
Improvements of the Transfer package.
* Summer 2013: Daniel Kühlwein, ICIS, Radboud University Nijmegen
Jasmin Blanchette, TUM
Various improvements to MaSh, including a server mode.
* First half of 2013: Steffen Smolka, TUM
Further improvements to Sledgehammer's Isar proof generator.
* May 2013: Florian Haftmann, TUM
Ephemeral interpretation in local theories.
* May 2013: Lukas Bulwahn and Nicolai Schaffroth, TUM
Spec_Check: A Quickcheck tool for Isabelle/ML.
* April 2013: Stefan Berghofer, secunet Security Networks AG
Dmitriy Traytel, TUM
Makarius Wenzel, Université Paris-Sud / LRI
Case translations as a separate check phase independent of the
datatype package.
* March 2013: Florian Haftmann, TUM
Reform of "big operators" on sets.
* March 2013: Florian Haftmann, TUM
Algebraic locale hierarchy for orderings and (semi)lattices.
* February 2013: Florian Haftmann, TUM
Reworking and consolidation of code generation for target language
numerals.
* February 2013: Florian Haftmann, TUM
Sieve of Eratosthenes.
Contributions to Isabelle2013
-----------------------------
* 2012: Makarius Wenzel, Université Paris-Sud / LRI
Improvements of Isabelle/Scala and Isabelle/jEdit Prover IDE.
* Fall 2012: Daniel Kühlwein, 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.
* December 2012: Alessandro Coglio, Kestrel
Contributions to HOL's Lattice library.
* 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
lists.
* 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.
* 2010-2012: Markus Kaiser and Lukas Bulwahn, TUM
Graphview in Scala/Swing.
Contributions to Isabelle2012
-----------------------------
* April 2012: Johannes Hölzl, TUM
Probability: Introduced type to represent measures instead of
locales.
* 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
equalities/inequalities.
* 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,
iProver-Eq).
* 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
prover.
* 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
Cambridge
Elementary topology in Euclidean space.
* March 2009: Johannes Hoelzl, TUM
Method "approximation", which proves real valued inequalities by
computation.
* 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
services.
* 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.