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Subject: Announcing Isabelle2007
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To: isabelle-users@cl.cam.ac.uk
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Isabelle2007 is finally available.
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This release introduces fundamental changes over Isabelle2005, see the
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NEWS file in the distribution for more details. Numerous existing
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concepts have been generalized and re-implemented based on novel
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system architecture. New theories and proof tools have been added
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(mostly for HOL). Some highlights are:
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* Support for nominal datatypes (binding structures) due to the
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HOL-Nominal logic.
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* General local theory infrastructure for specifications depending on
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parameters and assumptions (e.g. from locales, classes).
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* New basic specification elements 'definition', 'axiomatization',
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'abbreviation', 'notation'.
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* New version of 'inductive' package for inductive predicates;
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separate variant 'inductive_set'.
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* New 'function' package for general recursive function definitions.
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* New 'class' package combination of axclass + locale interpretation.
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* Built-in Metis prover, external linkup for automated provers, and
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'sledgehammer' command for automated proof synthesis.
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* Auto quickcheck: toplevel goals are tested for counterexamples
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automatically when they are stated.
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* Second generation code generator for a subset of HOL, targeting SML,
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Haskell, and OCaml.
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* Command 'normal_form' and method "normalization" for evaluating
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terms with free variables.
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* Full list comprehension syntax for HOL.
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* Much improved algebraic capabilities, including Groebner bases.
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* Embedding of ML code into theories with static references to the
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logical context (via antiquotations).
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* Parallel loading of theories based on native multicore support in
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Poly/ML 5.1.
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You may get Isabelle2007 from the following mirror sites:
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Cambridge (UK) http://www.cl.cam.ac.uk/Research/HVG/Isabelle/
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Munich (Germany) http://isabelle.in.tum.de/
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Sydney (Australia) http://mirror.cse.unsw.edu.au/pub/isabelle/
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