CONTRIBUTORS

added examples for nested let

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−Contributions to Isabelle
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−* August 2006: Amine Chaieb, TUM
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−  Experimental support for generic reflection and reification in HOL.
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−* July 2006: Rafal Kolanski, NICTA
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−  Hex (0xFF) and binary (0b1011) numerals.
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−* May 2006: Klaus Aehlig, LMU
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−  Command 'normal_form': normalization by evaluation.
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−* May 2006: Amine Chaieb, TUM
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−  HOL-Complex: Ferrante and Rackoff Algorithm for linear real
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−  arithmetic.
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−* February 2006: Benjamin Porter, NICTA
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−  HOL and HOL-Complex: generalied mean value theorem, continuum is
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−  not denumerable, harmonic and arithmetic series, and denumerability
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−  of rationals.
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−* October 2005: Martin Wildmoser, TUM
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−  Sketch for Isar 'guess' element.
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−Contributions to Isabelle 2005
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−* September 2005: Lukas Bulwahn and Bernhard Haeupler, TUM
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−  HOL-Complex: Formalization of Taylor series.
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−* September 2005: Stephan Merz, Alwen Tiu, QSL Loria
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−  Components for SAT solver method using zChaff.
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−* September 2005: Ning Zhang and Christian Urban, LMU Munich
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−  A Chinese theory.
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−* September 2005: Bernhard Haeupler, TUM
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−  Method comm_ring for proving equalities in commutative rings.
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−* July/August 2005: Jeremy Avigad, Carnegie Mellon University
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−  Various improvements of the HOL and HOL-Complex library.
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−* July 2005: Florian Zuleger, Johannes Hoelzl, and Simon Funke, TUM
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−  Some structured proofs about completeness of real numbers.
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−* May 2005: Rafal Kolanski and Gerwin Klein, NICTA
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−  Improved retrieval of facts from theory/proof context.
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−* February 2005: Lucas Dixon, University of Edinburgh
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−  Improved subst method.
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−* 2005: Brian Huffman, OGI
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−  Various improvements of HOLCF.
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−  Some improvements of the HOL-Complex library.
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−* 2005: Claire Quigley and Jia Meng, University of Cambridge
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−  Some support for asynchronous communication with external provers
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−  (experimental).
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−* 2005: Florian Haftmann, TUM
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−  Contributions to document 'sugar'.
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−  Various ML combinators, notably linear functional transformations.
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−  Some cleanup of ML legacy.
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−  Additional antiquotations.
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−  Improved Isabelle web site.
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−* 2004/2005: David Aspinall, University of Edinburgh
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−  Various elements of XML and PGIP based communication with user
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−  interfaces (experimental).
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−* 2004/2005: Gerwin Klein, NICTA
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−  Contributions to document 'sugar'.
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−  Improved Isabelle web site.
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−  Improved HTML presentation of theories.
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−* 2004/2005: Clemens Ballarin, TUM
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−  Provers: tools for transitive relations and quasi orders.
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−  Improved version of locales, notably interpretation of locales.
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−  Improved version of HOL-Algebra.
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−* 2004/2005: Amine Chaieb, TUM
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−  Improved version of HOL presburger method.
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−* 2004/2005: Steven Obua, TUM
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−  Improved version of HOL/Import, support for HOL-Light.
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−  Improved version of HOL-Complex-Matrix.
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−  Pure/defs: more sophisticated checks on well-formedness of overloading.
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−  Pure/Tools: an experimental evaluator for lambda terms.
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−* 2004/2005: Norbert Schirmer, TUM
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−  Contributions to document 'sugar'.
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−  Improved version of HOL/record.
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−* 2004/2005: Sebastian Skalberg, TUM
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−  Improved version of HOL/Import.
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−  Some internal ML reorganizations.
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−* 2004/2005: Tjark Weber, TUM
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−  SAT solver method using zChaff.
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−  Improved version of HOL/refute.
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−$Id$