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 -------------------------------------- * January 2016: Florian Haftmann Abolition of compound operators INFIMUM and SUPREMUM for complete lattices. * March 2016: Florian Haftmann Abstract factorial rings with unique factorization. * March 2016: Andreas Lochbihler Reasoning support for monotonicity, continuity and admissibility in chain-complete partial orders. Contributions to Isabelle2016 ----------------------------- * 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. * 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. * 2007/2008: Stefan Berghofer, TUM HOL-Nominal package improvements. * March 2008: Markus Reiter, TUM HOL/Library/RBT: red-black trees. * February 2008: Alexander Krauss, TUM and Florian Haftmann, TUM and Lukas Bulwahn, TUM and John Matthews, Galois: HOL/Library/Imperative_HOL: Haskell-style imperative data structures for HOL. * December 2007: Norbert Schirmer, Uni Saarbruecken Misc improvements of record package in HOL. * December 2007: Florian Haftmann, TUM Overloading and class instantiation target. * December 2007: Florian Haftmann, TUM New version of primrec package for local theories. * December 2007: Alexander Krauss, TUM Method "induction_scheme" in HOL. * November 2007: Peter Lammich, Uni Muenster HOL-Lattice: some more lemmas. Contributions to Isabelle2007 ----------------------------- * October 2007: Norbert Schirmer, TUM / Uni Saarbruecken State Spaces: The Locale Way (in HOL). * October 2007: Mark A. Hillebrand, DFKI Robust sub/superscripts in LaTeX document output. * August 2007: Jeremy Dawson, NICTA and Paul Graunke, Galois and Brian Huffman, PSU and Gerwin Klein, NICTA and John Matthews, Galois HOL-Word: a library for fixed-size machine words in Isabelle. * August 2007: Brian Huffman, PSU HOL/Library/Boolean_Algebra and HOL/Library/Numeral_Type. * June 2007: Amine Chaieb, TUM Semiring normalization and Groebner Bases. Support for dense linear orders. * June 2007: Joe Hurd, Oxford Metis theorem-prover. * 2007: Kong W. Susanto, Cambridge HOL: Metis prover integration. * 2007: Stefan Berghofer, TUM HOL: inductive predicates and sets. * 2007: Norbert Schirmer, TUM HOL/record: misc improvements. * 2006/2007: Alexander Krauss, TUM HOL: function package and related theories on termination. * 2006/2007: Florian Haftmann, TUM Pure: generic code generator framework. Pure: class package. HOL: theory reorganization, code generator setup. * 2006/2007: Christian Urban, TUM and Stefan Berghofer, TUM and Julien Narboux, TUM HOL/Nominal package and related tools. * November 2006: Lukas Bulwahn, TUM HOL: method "lexicographic_order" for function package. * October 2006: Stefan Hohe, TUM HOL-Algebra: ideals and quotients over rings. * August 2006: Amine Chaieb, TUM Experimental support for generic reflection and reification in HOL. * July 2006: Rafal Kolanski, NICTA Hex (0xFF) and binary (0b1011) numerals. * May 2006: Klaus Aehlig, LMU Command 'normal_form': normalization by evaluation. * May 2006: Amine Chaieb, TUM HOL-Complex: Ferrante and Rackoff Algorithm for linear real arithmetic. * February 2006: Benjamin Porter, NICTA HOL and HOL-Complex: generalised mean value theorem, continuum is not denumerable, harmonic and arithmetic series, and denumerability of rationals. * October 2005: Martin Wildmoser, TUM Sketch for Isar 'guess' element. Contributions to Isabelle2005 ----------------------------- * September 2005: Lukas Bulwahn and Bernhard Haeupler, TUM HOL-Complex: Formalization of Taylor series. * September 2005: Stephan Merz, Alwen Tiu, QSL Loria Components for SAT solver method using zChaff. * September 2005: Ning Zhang and Christian Urban, LMU Munich A Chinese theory. * September 2005: Bernhard Haeupler, TUM Method comm_ring for proving equalities in commutative rings. * July/August 2005: Jeremy Avigad, Carnegie Mellon University Various improvements of the HOL and HOL-Complex library. * July 2005: Florian Zuleger, Johannes Hoelzl, and Simon Funke, TUM Some structured proofs about completeness of real numbers. * May 2005: Rafal Kolanski and Gerwin Klein, NICTA Improved retrieval of facts from theory/proof context. * February 2005: Lucas Dixon, University of Edinburgh Improved subst method. * 2005: Brian Huffman, OGI Various improvements of HOLCF. Some improvements of the HOL-Complex library. * 2005: Claire Quigley and Jia Meng, University of Cambridge Some support for asynchronous communication with external provers (experimental). * 2005: Florian Haftmann, TUM Contributions to document 'sugar'. Various ML combinators, notably linear functional transformations. Some cleanup of ML legacy. Additional antiquotations. Improved Isabelle web site. * 2004/2005: David Aspinall, University of Edinburgh Various elements of XML and PGIP based communication with user interfaces (experimental). * 2004/2005: Gerwin Klein, NICTA Contributions to document 'sugar'. Improved Isabelle web site. Improved HTML presentation of theories. * 2004/2005: Clemens Ballarin, TUM Provers: tools for transitive relations and quasi orders. Improved version of locales, notably interpretation of locales. Improved version of HOL-Algebra. * 2004/2005: Amine Chaieb, TUM Improved version of HOL presburger method. * 2004/2005: Steven Obua, TUM Improved version of HOL/Import, support for HOL-Light. Improved version of HOL-Complex-Matrix. Pure/defs: more sophisticated checks on well-formedness of overloading. Pure/Tools: an experimental evaluator for lambda terms. * 2004/2005: Norbert Schirmer, TUM Contributions to document 'sugar'. Improved version of HOL/record. * 2004/2005: Sebastian Skalberg, TUM Improved version of HOL/Import. Some internal ML reorganizations. * 2004/2005: Tjark Weber, TUM SAT solver method using zChaff. Improved version of HOL/refute. :maxLineLen=78: