NEWS
author haftmann
Fri, 06 Mar 2009 20:30:16 +0100
changeset 30326 a01b2de0e3e1
parent 30308 23935abfb549
child 30395 f3103bd2b167
permissions -rw-r--r--
constructive version of Cantor's first diagonalization argument
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Isabelle NEWS -- history user-relevant changes
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==============================================
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New in this Isabelle version
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----------------------------
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*** General ***
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* The main reference manuals (isar-ref, implementation, system) have
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been updated and extended.  Formally checked references as hyperlinks
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are now available in uniform manner.
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* Simplified main Isabelle executables, with less surprises on
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case-insensitive file-systems (such as Mac OS).
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  - The main Isabelle tool wrapper is now called "isabelle" instead of
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    "isatool."
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  - The former "isabelle" alias for "isabelle-process" has been
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    removed (should rarely occur to regular users).
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  - The former "isabelle-interface" and its alias "Isabelle" have been
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    removed (interfaces are now regular Isabelle tools).
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Within scripts and make files, the Isabelle environment variables
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ISABELLE_TOOL and ISABELLE_PROCESS replace old ISATOOL and ISABELLE,
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respectively.  (The latter are still available as legacy feature.)
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The old isabelle-interface wrapper could react in confusing ways if
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the interface was uninstalled or changed otherwise.  Individual
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interface tool configuration is now more explicit, see also the
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Isabelle system manual.  In particular, Proof General is now available
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via "isabelle emacs".
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INCOMPATIBILITY, need to adapt derivative scripts.  Users may need to
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purge installed copies of Isabelle executables and re-run "isabelle
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install -p ...", or use symlinks.
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* The default for ISABELLE_HOME_USER is now ~/.isabelle instead of the
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old ~/isabelle, which was slightly non-standard and apt cause
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surprises on case-insensitive file-systems.
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INCOMPATIBILITY, need to move existing ~/isabelle/etc,
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~/isabelle/heaps, ~/isabelle/browser_info to the new place.  Special
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care is required when using older releases of Isabelle.  Note that
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ISABELLE_HOME_USER can be changed in Isabelle/etc/settings of any
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Isabelle distribution.
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* Proofs of fully specified statements are run in parallel on
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multi-core systems.  A speedup factor of 2-3 can be expected on a
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regular 4-core machine, if the initial heap space is made reasonably
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large (cf. Poly/ML option -H).  [Poly/ML 5.2.1 or later]
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* Generalized Isar history, with support for linear undo, direct state
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addressing etc.
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* Recovered hiding of consts, which was accidentally broken in
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Isabelle2007.  Potential INCOMPATIBILITY, ``hide const c'' really
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makes c inaccessible; consider using ``hide (open) const c'' instead.
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* Removed exotic 'token_translation' command.  INCOMPATIBILITY, use ML
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interface instead.
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* There is a new syntactic category "float_const" for signed decimal
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fractions (e.g. 123.45 or -123.45).
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* New prover for coherent logic (see src/Tools/coherent.ML).
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*** Pure ***
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* Class declaration: sc. "base sort" must not be given in import list
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any longer but is inferred from the specification.  Particularly in HOL,
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write
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    class foo = ...     instead of      class foo = type + ...
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* Type binding gradually replaces formerly used type bstring for names
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to be bound.  Name space interface for declarations has been simplified:
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  NameSpace.declare: NameSpace.naming
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    -> binding -> NameSpace.T -> string * NameSpace.T
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  NameSpace.bind: NameSpace.naming
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    -> binding * 'a -> 'a NameSpace.table -> string * 'a NameSpace.table
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         (*exception Symtab.DUP*)
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See further modules src/Pure/General/binding.ML and
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src/Pure/General/name_space.ML
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* Module moves in repository:
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    src/Pure/Tools/value.ML ~> src/Tools/
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    src/Pure/Tools/quickcheck.ML ~> src/Tools/
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* Slightly more coherent Pure syntax, with updated documentation in
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isar-ref manual.  Removed locales meta_term_syntax and
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meta_conjunction_syntax: TERM and &&& (formerly &&) are now permanent,
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INCOMPATIBILITY in rare situations.
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* Goal-directed proof now enforces strict proof irrelevance wrt. sort
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hypotheses.  Sorts required in the course of reasoning need to be
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covered by the constraints in the initial statement, completed by the
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type instance information of the background theory.  Non-trivial sort
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hypotheses, which rarely occur in practice, may be specified via
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vacuous propositions of the form SORT_CONSTRAINT('a::c).  For example:
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  lemma assumes "SORT_CONSTRAINT('a::empty)" shows False ...
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The result contains an implicit sort hypotheses as before --
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SORT_CONSTRAINT premises are eliminated as part of the canonical rule
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normalization.
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* Changed defaults for unify configuration options:
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  unify_trace_bound = 50 (formerly 25)
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  unify_search_bound = 60 (formerly 30)
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* Different bookkeeping for code equations (INCOMPATIBILITY):
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  a) On theory merge, the last set of code equations for a particular
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     constant is taken (in accordance with the policy applied by other
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     parts of the code generator framework).
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  b) Code equations stemming from explicit declarations (e.g. code
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     attribute) gain priority over default code equations stemming
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     from definition, primrec, fun etc.
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* Global versions of theorems stemming from classes do not carry a
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parameter prefix any longer.  INCOMPATIBILITY.
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* Dropped locale element "includes".  This is a major INCOMPATIBILITY.
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In existing theorem specifications replace the includes element by the
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respective context elements of the included locale, omitting those
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that are already present in the theorem specification.  Multiple
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assume elements of a locale should be replaced by a single one
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involving the locale predicate.  In the proof body, declarations (most
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notably theorems) may be regained by interpreting the respective
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locales in the proof context as required (command "interpret").
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If using "includes" in replacement of a target solely because the
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parameter types in the theorem are not as general as in the target,
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consider declaring a new locale with additional type constraints on
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the parameters (context element "constrains").
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* Dropped "locale (open)".  INCOMPATIBILITY.
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* Interpretation commands no longer attempt to simplify goal.
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INCOMPATIBILITY: in rare situations the generated goal differs.  Use
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methods intro_locales and unfold_locales to clarify.
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* Interpretation commands no longer accept interpretation attributes.
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INCOMPATBILITY.
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* Complete re-implementation of locales.  INCOMPATIBILITY.  The most
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important changes are listed below.  See documentation (forthcoming)
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and tutorial (also forthcoming) for details.
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3c6cd80a4854 New locales.
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- In locale expressions, instantiation replaces renaming.  Parameters
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must be declared in a for clause.  To aid compatibility with previous
3c6cd80a4854 New locales.
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parameter inheritance, in locale declarations, parameters that are not
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'touched' (instantiation position "_" or omitted) are implicitly added
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with their syntax at the beginning of the for clause.
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- Syntax from abbreviations and definitions in locales is available in
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locale expressions and context elements.  The latter is particularly
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useful in locale declarations.
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- More flexible mechanisms to qualify names generated by locale
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expressions.  Qualifiers (prefixes) may be specified in locale
30106
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expressions.  Available are normal qualifiers (syntax "name:") and
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strict qualifiers (syntax "name!:").  The latter must occur in name
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references and are useful to avoid accidental hiding of names, the
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former are optional.  Qualifiers derived from the parameter names of a
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locale are no longer generated.
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351fc2f8493d tuned NEWS;
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- "sublocale l < e" replaces "interpretation l < e".  The
351fc2f8493d tuned NEWS;
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instantiation clause in "interpretation" and "interpret" (square
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brackets) is no longer available.  Use locale expressions.
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- When converting proof scripts, be sure to replace qualifiers in
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"interpretation" and "interpret" by strict qualifiers.  Qualifiers in
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locale expressions range over a single locale instance only.
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* Command 'instance': attached definitions no longer accepted.
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INCOMPATIBILITY, use proper 'instantiation' target.
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* Keyword 'code_exception' now named 'code_abort'.  INCOMPATIBILITY.
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* The 'axiomatization' command now only works within a global theory
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context.  INCOMPATIBILITY.
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* New find_theorems criterion "solves" matching theorems that directly
351fc2f8493d tuned NEWS;
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solve the current goal. Try "find_theorems solves".
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3c348f5873f3 updated NEWS etc with "solves" criterion and auto_solves
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* Added an auto solve option, which can be enabled through the
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ProofGeneral Isabelle settings menu (disabled by default).
29861
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When enabled, find_theorems solves is called whenever a new lemma is
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stated. Any theorems that could solve the lemma directly are listed
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underneath the goal.
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* New command find_consts searches for constants based on type and
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name patterns, e.g.
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    find_consts "_ => bool"
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By default, matching is against subtypes, but it may be restricted to
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the whole type. Searching by name is possible. Multiple queries are
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conjunctive and queries may be negated by prefixing them with a
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hyphen:
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    find_consts strict: "_ => bool" name: "Int" -"int => int"
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27381
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*** Document preparation ***
19ae7064f00f @{lemma}: 'by' keyword;
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19ae7064f00f @{lemma}: 'by' keyword;
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* Antiquotation @{lemma} now imitates a regular terminal proof,
27392
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demanding keyword 'by' and supporting the full method expression
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syntax just like the Isar command 'by'.
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19ae7064f00f @{lemma}: 'by' keyword;
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27104
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*** HOL ***
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* Theory Library/Diagonalize.thy provides constructive version of
a01b2de0e3e1 constructive version of Cantor's first diagonalization argument
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Cantor's first diagonalization argument.
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30298
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* New predicate "strict_mono" classifies strict functions on partial orders.
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With strict functions on linear orders, reasoning about (in)equalities is
30300
aa44d67eea16 corrected slip in NEWS
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facilitated by theorems "strict_mono_eq", "strict_mono_less_eq" and "strict_mono_less".
30298
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30304
d8e4cd2ac2a1 set operations Int, Un, INTER, UNION, Inter, Union, empty, UNIV are now proper qualified constants with authentic syntax
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* Some set operations are now proper qualified constants with authentic syntax.
d8e4cd2ac2a1 set operations Int, Un, INTER, UNION, Inter, Union, empty, UNIV are now proper qualified constants with authentic syntax
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INCOMPATIBILITY:
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d8e4cd2ac2a1 set operations Int, Un, INTER, UNION, Inter, Union, empty, UNIV are now proper qualified constants with authentic syntax
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    op Int ~>   Set.Int
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    op Un ~>    Set.Un
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    INTER ~>    Set.INTER
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    UNION ~>    Set.UNION
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    Inter ~>    Set.Inter
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    Union ~>    Set.Union
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    {} ~>       Set.empty
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    UNIV ~>     Set.UNIV
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d8e4cd2ac2a1 set operations Int, Un, INTER, UNION, Inter, Union, empty, UNIV are now proper qualified constants with authentic syntax
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* Class complete_lattice with operations Inf, Sup, INFI, SUPR now in theory
d8e4cd2ac2a1 set operations Int, Un, INTER, UNION, Inter, Union, empty, UNIV are now proper qualified constants with authentic syntax
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Set.
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* Auxiliary class "itself" has disappeared -- classes without any parameter
08ef36ed2f8a handling type classes without parameters
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are treated as expected by the 'class' command.
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29823
0ab754d13ccd session Reflecion renamed to Decision_Procs, moved Dense_Linear_Order there
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* Leibnitz's Series for Pi and the arcus tangens and logarithm series.
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0ab754d13ccd session Reflecion renamed to Decision_Procs, moved Dense_Linear_Order there
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* Common decision procedures (Cooper, MIR, Ferrack, Approximation, Dense_Linear_Order)
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now in directory HOL/Decision_Procs.
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* Theory HOL/Decisioin_Procs/Approximation.thy provides the new proof method
0ab754d13ccd session Reflecion renamed to Decision_Procs, moved Dense_Linear_Order there
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"approximation".  It proves formulas on real values by using interval arithmetic.
29810
fa4ec7a7215c Updated NEWS about approximation
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In the formulas are also the transcendental functions sin, cos, tan, atan, ln,
29823
0ab754d13ccd session Reflecion renamed to Decision_Procs, moved Dense_Linear_Order there
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exp and the constant pi are allowed.  For examples see HOL/ex/ApproximationEx.thy.
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0ab754d13ccd session Reflecion renamed to Decision_Procs, moved Dense_Linear_Order there
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* Theory "Reflection" now resides in HOL/Library.
29650
cc3958d31b1d Reflection.thy now in HOL/Library
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29628
d9294387ab0e entry point for Word library now named Word
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* Entry point to Word library now simply named "Word".  INCOMPATIBILITY.
d9294387ab0e entry point for Word library now named Word
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6d4cb27ed19c adapted HOL source structure to distribution layout
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* Made source layout more coherent with logical distribution
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structure:
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    src/HOL/Library/RType.thy ~> src/HOL/Typerep.thy
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    src/HOL/Library/Code_Message.thy ~> src/HOL/
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    src/HOL/Library/GCD.thy ~> src/HOL/
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    src/HOL/Library/Order_Relation.thy ~> src/HOL/
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    src/HOL/Library/Parity.thy ~> src/HOL/
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    src/HOL/Library/Univ_Poly.thy ~> src/HOL/
30176
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    src/HOL/Real/ContNotDenum.thy ~> src/HOL/Library/
28952
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    src/HOL/Real/Lubs.thy ~> src/HOL/
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    src/HOL/Real/PReal.thy ~> src/HOL/
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    src/HOL/Real/Rational.thy ~> src/HOL/
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    src/HOL/Real/RComplete.thy ~> src/HOL/
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    src/HOL/Real/RealDef.thy ~> src/HOL/
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    src/HOL/Real/RealPow.thy ~> src/HOL/
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    src/HOL/Real/Real.thy ~> src/HOL/
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    src/HOL/Complex/Complex_Main.thy ~> src/HOL/
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    src/HOL/Complex/Complex.thy ~> src/HOL/
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    src/HOL/Complex/FrechetDeriv.thy ~> src/HOL/Library/
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    src/HOL/Complex/Fundamental_Theorem_Algebra.thy ~> src/HOL/Library/
28952
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    src/HOL/Hyperreal/Deriv.thy ~> src/HOL/
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    src/HOL/Hyperreal/Fact.thy ~> src/HOL/
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    src/HOL/Hyperreal/Integration.thy ~> src/HOL/
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    src/HOL/Hyperreal/Lim.thy ~> src/HOL/
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    src/HOL/Hyperreal/Ln.thy ~> src/HOL/
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    src/HOL/Hyperreal/Log.thy ~> src/HOL/
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    src/HOL/Hyperreal/MacLaurin.thy ~> src/HOL/
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    src/HOL/Hyperreal/NthRoot.thy ~> src/HOL/
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    src/HOL/Hyperreal/Series.thy ~> src/HOL/
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    src/HOL/Hyperreal/SEQ.thy ~> src/HOL/
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    src/HOL/Hyperreal/Taylor.thy ~> src/HOL/
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    src/HOL/Hyperreal/Transcendental.thy ~> src/HOL/
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    src/HOL/Real/Float ~> src/HOL/Library/
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   296
    src/HOL/Real/HahnBanach ~> src/HOL/HahnBanach
6d4cb27ed19c adapted HOL source structure to distribution layout
haftmann
parents: 29182
diff changeset
   297
    src/HOL/Real/RealVector.thy ~> src/HOL/
28952
15a4b2cf8c34 made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents: 28915
diff changeset
   298
15a4b2cf8c34 made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents: 28915
diff changeset
   299
    src/HOL/arith_data.ML ~> src/HOL/Tools
15a4b2cf8c34 made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents: 28915
diff changeset
   300
    src/HOL/hologic.ML ~> src/HOL/Tools
15a4b2cf8c34 made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents: 28915
diff changeset
   301
    src/HOL/simpdata.ML ~> src/HOL/Tools
15a4b2cf8c34 made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents: 28915
diff changeset
   302
    src/HOL/int_arith1.ML ~> src/HOL/Tools/int_arith.ML
15a4b2cf8c34 made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents: 28915
diff changeset
   303
    src/HOL/int_factor_simprocs.ML ~> src/HOL/Tools
15a4b2cf8c34 made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents: 28915
diff changeset
   304
    src/HOL/nat_simprocs.ML ~> src/HOL/Tools
15a4b2cf8c34 made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents: 28915
diff changeset
   305
    src/HOL/Real/float_arith.ML ~> src/HOL/Tools
15a4b2cf8c34 made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents: 28915
diff changeset
   306
    src/HOL/Real/float_syntax.ML ~> src/HOL/Tools
15a4b2cf8c34 made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents: 28915
diff changeset
   307
    src/HOL/Real/rat_arith.ML ~> src/HOL/Tools
15a4b2cf8c34 made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents: 28915
diff changeset
   308
    src/HOL/Real/real_arith.ML ~> src/HOL/Tools
15a4b2cf8c34 made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents: 28915
diff changeset
   309
29398
89813bbf0f3e NEWS and CONTRIBUTORS
haftmann
parents: 29253
diff changeset
   310
    src/HOL/Library/Array.thy ~> src/HOL/Imperative_HOL
89813bbf0f3e NEWS and CONTRIBUTORS
haftmann
parents: 29253
diff changeset
   311
    src/HOL/Library/Heap_Monad.thy ~> src/HOL/Imperative_HOL
89813bbf0f3e NEWS and CONTRIBUTORS
haftmann
parents: 29253
diff changeset
   312
    src/HOL/Library/Heap.thy ~> src/HOL/Imperative_HOL
89813bbf0f3e NEWS and CONTRIBUTORS
haftmann
parents: 29253
diff changeset
   313
    src/HOL/Library/Imperative_HOL.thy ~> src/HOL/Imperative_HOL
89813bbf0f3e NEWS and CONTRIBUTORS
haftmann
parents: 29253
diff changeset
   314
    src/HOL/Library/Ref.thy ~> src/HOL/Imperative_HOL
89813bbf0f3e NEWS and CONTRIBUTORS
haftmann
parents: 29253
diff changeset
   315
    src/HOL/Library/Relational.thy ~> src/HOL/Imperative_HOL
89813bbf0f3e NEWS and CONTRIBUTORS
haftmann
parents: 29253
diff changeset
   316
28741
1b257449f804 simproc for let
haftmann
parents: 28710
diff changeset
   317
* If methods "eval" and "evaluation" encounter a structured proof state
1b257449f804 simproc for let
haftmann
parents: 28710
diff changeset
   318
with !!/==>, only the conclusion is evaluated to True (if possible),
1b257449f804 simproc for let
haftmann
parents: 28710
diff changeset
   319
avoiding strange error messages.
1b257449f804 simproc for let
haftmann
parents: 28710
diff changeset
   320
1b257449f804 simproc for let
haftmann
parents: 28710
diff changeset
   321
* Simplifier: simproc for let expressions now unfolds if bound variable
30304
d8e4cd2ac2a1 set operations Int, Un, INTER, UNION, Inter, Union, empty, UNIV are now proper qualified constants with authentic syntax
haftmann
parents: 30085
diff changeset
   322
occurs at most once in let expression body.  INCOMPATIBILITY.
28741
1b257449f804 simproc for let
haftmann
parents: 28710
diff changeset
   323
28685
275122631271 new classes "top" and "bot"
haftmann
parents: 28676
diff changeset
   324
* New classes "top" and "bot" with corresponding operations "top" and "bot"
275122631271 new classes "top" and "bot"
haftmann
parents: 28676
diff changeset
   325
in theory Orderings;  instantiation of class "complete_lattice" requires
275122631271 new classes "top" and "bot"
haftmann
parents: 28676
diff changeset
   326
instantiation of classes "top" and "bot".  INCOMPATIBILITY.
275122631271 new classes "top" and "bot"
haftmann
parents: 28676
diff changeset
   327
275122631271 new classes "top" and "bot"
haftmann
parents: 28676
diff changeset
   328
* Changed definition lemma "less_fun_def" in order to provide an instance
275122631271 new classes "top" and "bot"
haftmann
parents: 28676
diff changeset
   329
for preorders on functions;  use lemma "less_le" instead.  INCOMPATIBILITY.
275122631271 new classes "top" and "bot"
haftmann
parents: 28676
diff changeset
   330
28604
f36496b73227 generic ATP manager based on threads (by Fabian Immler);
wenzelm
parents: 28563
diff changeset
   331
* Unified theorem tables for both code code generators.  Thus
f36496b73227 generic ATP manager based on threads (by Fabian Immler);
wenzelm
parents: 28563
diff changeset
   332
[code func] has disappeared and only [code] remains.  INCOMPATIBILITY.
f36496b73227 generic ATP manager based on threads (by Fabian Immler);
wenzelm
parents: 28563
diff changeset
   333
28685
275122631271 new classes "top" and "bot"
haftmann
parents: 28676
diff changeset
   334
* Constants "undefined" and "default" replace "arbitrary".  Usually
275122631271 new classes "top" and "bot"
haftmann
parents: 28676
diff changeset
   335
"undefined" is the right choice to replace "arbitrary", though logically
275122631271 new classes "top" and "bot"
haftmann
parents: 28676
diff changeset
   336
there is no difference.  INCOMPATIBILITY.
28604
f36496b73227 generic ATP manager based on threads (by Fabian Immler);
wenzelm
parents: 28563
diff changeset
   337
f36496b73227 generic ATP manager based on threads (by Fabian Immler);
wenzelm
parents: 28563
diff changeset
   338
* Generic ATP manager for Sledgehammer, based on ML threads instead of
28605
wenzelm
parents: 28604
diff changeset
   339
Posix processes.  Avoids potentially expensive forking of the ML
wenzelm
parents: 28604
diff changeset
   340
process.  New thread-based implementation also works on non-Unix
wenzelm
parents: 28604
diff changeset
   341
platforms (Cygwin).  Provers are no longer hardwired, but defined
28606
wenzelm
parents: 28605
diff changeset
   342
within the theory via plain ML wrapper functions.  Basic Sledgehammer
30106
351fc2f8493d tuned NEWS;
wenzelm
parents: 30085
diff changeset
   343
commands are covered in the isar-ref manual.
28604
f36496b73227 generic ATP manager based on threads (by Fabian Immler);
wenzelm
parents: 28563
diff changeset
   344
f36496b73227 generic ATP manager based on threads (by Fabian Immler);
wenzelm
parents: 28563
diff changeset
   345
* Wrapper scripts for remote SystemOnTPTP service allows to use
28475
wenzelm
parents: 28474
diff changeset
   346
sledgehammer without local ATP installation (Vampire etc.).  See also
wenzelm
parents: 28474
diff changeset
   347
ISABELLE_HOME/contrib/SystemOnTPTP and the VAMPIRE_HOME setting
28604
f36496b73227 generic ATP manager based on threads (by Fabian Immler);
wenzelm
parents: 28563
diff changeset
   348
variable.  Other provers may be included via suitable ML wrappers, see
f36496b73227 generic ATP manager based on threads (by Fabian Immler);
wenzelm
parents: 28563
diff changeset
   349
also src/HOL/ATP_Linkup.thy.
28474
d0b8b0a1fca5 Vampire wrapper script for remote SystemOnTPTP service (by Fabian Immler);
wenzelm
parents: 28350
diff changeset
   350
28350
715163ec93c0 non left-linear equations for nbe
haftmann
parents: 28294
diff changeset
   351
* Normalization by evaluation now allows non-leftlinear equations.
715163ec93c0 non left-linear equations for nbe
haftmann
parents: 28294
diff changeset
   352
Declare with attribute [code nbe].
715163ec93c0 non left-linear equations for nbe
haftmann
parents: 28294
diff changeset
   353
715163ec93c0 non left-linear equations for nbe
haftmann
parents: 28294
diff changeset
   354
* Command "value" now integrates different evaluation
28248
b2869ebcf8e3 separate emacs tool for Proof General / Emacs;
wenzelm
parents: 28233
diff changeset
   355
mechanisms.  The result of the first successful evaluation mechanism
b2869ebcf8e3 separate emacs tool for Proof General / Emacs;
wenzelm
parents: 28233
diff changeset
   356
is printed.  In square brackets a particular named evaluation
b2869ebcf8e3 separate emacs tool for Proof General / Emacs;
wenzelm
parents: 28233
diff changeset
   357
mechanisms may be specified (currently, [SML], [code] or [nbe]).  See
b2869ebcf8e3 separate emacs tool for Proof General / Emacs;
wenzelm
parents: 28233
diff changeset
   358
further src/HOL/ex/Eval_Examples.thy.
28227
77221ee0f7b9 generic value command
haftmann
parents: 28178
diff changeset
   359
29125
d41182a8135c method "sizechange" proves termination of functions; added more infrastructure for termination proofs
krauss
parents: 28966
diff changeset
   360
* New method "sizechange" to automate termination proofs using (a
29182
9304afad825e tuned NEWS; CONTRIBUTORS
krauss
parents: 29162
diff changeset
   361
modification of) the size-change principle. Requires SAT solver. See
9304afad825e tuned NEWS; CONTRIBUTORS
krauss
parents: 29162
diff changeset
   362
src/HOL/ex/Termination.thy for examples.
29125
d41182a8135c method "sizechange" proves termination of functions; added more infrastructure for termination proofs
krauss
parents: 28966
diff changeset
   363
28088
723735f2d73a * Name bindings in higher specification mechanisms;
wenzelm
parents: 28085
diff changeset
   364
* HOL/Orderings: class "wellorder" moved here, with explicit induction
723735f2d73a * Name bindings in higher specification mechanisms;
wenzelm
parents: 28085
diff changeset
   365
rule "less_induct" as assumption.  For instantiation of "wellorder" by
723735f2d73a * Name bindings in higher specification mechanisms;
wenzelm
parents: 28085
diff changeset
   366
means of predicate "wf", use rule wf_wellorderI.  INCOMPATIBILITY.
27823
52971512d1a2 moved class wellorder to theory Orderings
haftmann
parents: 27793
diff changeset
   367
27793
29ad1d91a5a3 tuned formatting;
wenzelm
parents: 27761
diff changeset
   368
* HOL/Orderings: added class "preorder" as superclass of "order".
29ad1d91a5a3 tuned formatting;
wenzelm
parents: 27761
diff changeset
   369
INCOMPATIBILITY: Instantiation proofs for order, linorder
29ad1d91a5a3 tuned formatting;
wenzelm
parents: 27761
diff changeset
   370
etc. slightly changed.  Some theorems named order_class.* now named
29ad1d91a5a3 tuned formatting;
wenzelm
parents: 27761
diff changeset
   371
preorder_class.*.
29ad1d91a5a3 tuned formatting;
wenzelm
parents: 27761
diff changeset
   372
30198
922f944f03b2 name changes
nipkow
parents: 30181
diff changeset
   373
* HOL/Relation:
922f944f03b2 name changes
nipkow
parents: 30181
diff changeset
   374
Renamed "refl" to "refl_on", "reflexive" to "refl, "diag" to "Id_on".
922f944f03b2 name changes
nipkow
parents: 30181
diff changeset
   375
28855
5d21a3e7303c *** empty log message ***
nipkow
parents: 28741
diff changeset
   376
* HOL/Finite_Set: added a new fold combinator of type
5d21a3e7303c *** empty log message ***
nipkow
parents: 28741
diff changeset
   377
  ('a => 'b => 'b) => 'b => 'a set => 'b
5d21a3e7303c *** empty log message ***
nipkow
parents: 28741
diff changeset
   378
Occasionally this is more convenient than the old fold combinator which is
5d21a3e7303c *** empty log message ***
nipkow
parents: 28741
diff changeset
   379
now defined in terms of the new one and renamed to fold_image.
5d21a3e7303c *** empty log message ***
nipkow
parents: 28741
diff changeset
   380
29671
nipkow
parents: 29650
diff changeset
   381
* HOL/Ring_and_Field and HOL/OrderedGroup: The lemmas "group_simps" and
nipkow
parents: 29650
diff changeset
   382
"ring_simps" have been replaced by "algebra_simps" (which can be extended with
nipkow
parents: 29650
diff changeset
   383
further lemmas!). At the moment both still exist but the former will disappear
nipkow
parents: 29650
diff changeset
   384
at some point.
nipkow
parents: 29650
diff changeset
   385
30273
ecd6f0ca62ea declare power_Suc [simp]; remove redundant type-specific versions of power_Suc
huffman
parents: 30250
diff changeset
   386
* HOL/Power: Lemma power_Suc is now declared as a simp rule in class
ecd6f0ca62ea declare power_Suc [simp]; remove redundant type-specific versions of power_Suc
huffman
parents: 30250
diff changeset
   387
recpower.  Type-specific simp rules for various recpower types have
ecd6f0ca62ea declare power_Suc [simp]; remove redundant type-specific versions of power_Suc
huffman
parents: 30250
diff changeset
   388
been removed.  INCOMPATIBILITY.  Rename old lemmas as follows:
ecd6f0ca62ea declare power_Suc [simp]; remove redundant type-specific versions of power_Suc
huffman
parents: 30250
diff changeset
   389
ecd6f0ca62ea declare power_Suc [simp]; remove redundant type-specific versions of power_Suc
huffman
parents: 30250
diff changeset
   390
rat_power_0    -> power_0
ecd6f0ca62ea declare power_Suc [simp]; remove redundant type-specific versions of power_Suc
huffman
parents: 30250
diff changeset
   391
rat_power_Suc  -> power_Suc
ecd6f0ca62ea declare power_Suc [simp]; remove redundant type-specific versions of power_Suc
huffman
parents: 30250
diff changeset
   392
realpow_0      -> power_0
ecd6f0ca62ea declare power_Suc [simp]; remove redundant type-specific versions of power_Suc
huffman
parents: 30250
diff changeset
   393
realpow_Suc    -> power_Suc
ecd6f0ca62ea declare power_Suc [simp]; remove redundant type-specific versions of power_Suc
huffman
parents: 30250
diff changeset
   394
complexpow_0   -> power_0
ecd6f0ca62ea declare power_Suc [simp]; remove redundant type-specific versions of power_Suc
huffman
parents: 30250
diff changeset
   395
complexpow_Suc -> power_Suc
ecd6f0ca62ea declare power_Suc [simp]; remove redundant type-specific versions of power_Suc
huffman
parents: 30250
diff changeset
   396
power_poly_0   -> power_0
ecd6f0ca62ea declare power_Suc [simp]; remove redundant type-specific versions of power_Suc
huffman
parents: 30250
diff changeset
   397
power_poly_Suc -> power_Suc
ecd6f0ca62ea declare power_Suc [simp]; remove redundant type-specific versions of power_Suc
huffman
parents: 30250
diff changeset
   398
27793
29ad1d91a5a3 tuned formatting;
wenzelm
parents: 27761
diff changeset
   399
* HOL/Ring_and_Field and HOL/Divides: Definition of "op dvd" has been
29ad1d91a5a3 tuned formatting;
wenzelm
parents: 27761
diff changeset
   400
moved to separate class dvd in Ring_and_Field; a couple of lemmas on
29ad1d91a5a3 tuned formatting;
wenzelm
parents: 27761
diff changeset
   401
dvd has been generalized to class comm_semiring_1.  Likewise a bunch
29ad1d91a5a3 tuned formatting;
wenzelm
parents: 27761
diff changeset
   402
of lemmas from Divides has been generalized from nat to class
29ad1d91a5a3 tuned formatting;
wenzelm
parents: 27761
diff changeset
   403
semiring_div.  INCOMPATIBILITY.  This involves the following theorem
29ad1d91a5a3 tuned formatting;
wenzelm
parents: 27761
diff changeset
   404
renames resulting from duplicate elimination:
27651
16a26996c30e moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents: 27599
diff changeset
   405
16a26996c30e moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents: 27599
diff changeset
   406
    dvd_def_mod ~>          dvd_eq_mod_eq_0
16a26996c30e moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents: 27599
diff changeset
   407
    zero_dvd_iff ~>         dvd_0_left_iff
28559
55c003a5600a tuned default rules of (dvd)
haftmann
parents: 28522
diff changeset
   408
    dvd_0 ~>                dvd_0_right
27651
16a26996c30e moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents: 27599
diff changeset
   409
    DIVISION_BY_ZERO_DIV ~> div_by_0
16a26996c30e moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents: 27599
diff changeset
   410
    DIVISION_BY_ZERO_MOD ~> mod_by_0
16a26996c30e moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents: 27599
diff changeset
   411
    mult_div ~>             div_mult_self2_is_id
16a26996c30e moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents: 27599
diff changeset
   412
    mult_mod ~>             mod_mult_self2_is_0
16a26996c30e moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents: 27599
diff changeset
   413
30224
79136ce06bdb removed and renamed redundant lemmas
nipkow
parents: 30200
diff changeset
   414
* HOL/IntDiv: removed many lemmas that are instances of class-based
30044
nipkow
parents: 29883
diff changeset
   415
generalizations (from Divides and Ring_and_Field).
nipkow
parents: 29883
diff changeset
   416
INCOMPATIBILITY. Rename old lemmas as follows:
nipkow
parents: 29883
diff changeset
   417
nipkow
parents: 29883
diff changeset
   418
dvd_diff               -> nat_dvd_diff
nipkow
parents: 29883
diff changeset
   419
dvd_zminus_iff         -> dvd_minus_iff
30224
79136ce06bdb removed and renamed redundant lemmas
nipkow
parents: 30200
diff changeset
   420
mod_add1_eq            -> mod_add_eq
79136ce06bdb removed and renamed redundant lemmas
nipkow
parents: 30200
diff changeset
   421
mod_mult1_eq           -> mod_mult_right_eq
79136ce06bdb removed and renamed redundant lemmas
nipkow
parents: 30200
diff changeset
   422
mod_mult1_eq'          -> mod_mult_left_eq
79136ce06bdb removed and renamed redundant lemmas
nipkow
parents: 30200
diff changeset
   423
mod_mult_distrib_mod   -> mod_mult_eq
30044
nipkow
parents: 29883
diff changeset
   424
nat_mod_add_left_eq    -> mod_add_left_eq
nipkow
parents: 29883
diff changeset
   425
nat_mod_add_right_eq   -> mod_add_right_eq
nipkow
parents: 29883
diff changeset
   426
nat_mod_div_trivial    -> mod_div_trivial
nipkow
parents: 29883
diff changeset
   427
nat_mod_mod_trivial    -> mod_mod_trivial
nipkow
parents: 29883
diff changeset
   428
zdiv_zadd_self1        -> div_add_self1
nipkow
parents: 29883
diff changeset
   429
zdiv_zadd_self2        -> div_add_self2
30181
05629f28f0f7 removed redundant lemmas
nipkow
parents: 30176
diff changeset
   430
zdiv_zmult_self1       -> div_mult_self2_is_id
30044
nipkow
parents: 29883
diff changeset
   431
zdiv_zmult_self2       -> div_mult_self1_is_id
nipkow
parents: 29883
diff changeset
   432
zdvd_triv_left         -> dvd_triv_left
nipkow
parents: 29883
diff changeset
   433
zdvd_triv_right        -> dvd_triv_right
nipkow
parents: 29883
diff changeset
   434
zdvd_zmult_cancel_disj -> dvd_mult_cancel_left
30085
nipkow
parents: 30044
diff changeset
   435
zmod_eq0_zdvd_iff      -> dvd_eq_mod_eq_0[symmetric]
30044
nipkow
parents: 29883
diff changeset
   436
zmod_zadd_left_eq      -> mod_add_left_eq
nipkow
parents: 29883
diff changeset
   437
zmod_zadd_right_eq     -> mod_add_right_eq
nipkow
parents: 29883
diff changeset
   438
zmod_zadd_self1        -> mod_add_self1
nipkow
parents: 29883
diff changeset
   439
zmod_zadd_self2        -> mod_add_self2
30224
79136ce06bdb removed and renamed redundant lemmas
nipkow
parents: 30200
diff changeset
   440
zmod_zadd1_eq          -> mod_add_eq
30044
nipkow
parents: 29883
diff changeset
   441
zmod_zdiff1_eq         -> mod_diff_eq
nipkow
parents: 29883
diff changeset
   442
zmod_zdvd_zmod         -> mod_mod_cancel
nipkow
parents: 29883
diff changeset
   443
zmod_zmod_cancel       -> mod_mod_cancel
nipkow
parents: 29883
diff changeset
   444
zmod_zmult_self1       -> mod_mult_self2_is_0
nipkow
parents: 29883
diff changeset
   445
zmod_zmult_self2       -> mod_mult_self1_is_0
nipkow
parents: 29883
diff changeset
   446
zmod_1                 -> mod_by_1
nipkow
parents: 29883
diff changeset
   447
zdiv_1                 -> div_by_1
nipkow
parents: 29883
diff changeset
   448
zdvd_abs1              -> abs_dvd_iff
nipkow
parents: 29883
diff changeset
   449
zdvd_abs2              -> dvd_abs_iff
nipkow
parents: 29883
diff changeset
   450
zdvd_refl              -> dvd_refl
nipkow
parents: 29883
diff changeset
   451
zdvd_trans             -> dvd_trans
nipkow
parents: 29883
diff changeset
   452
zdvd_zadd              -> dvd_add
nipkow
parents: 29883
diff changeset
   453
zdvd_zdiff             -> dvd_diff
nipkow
parents: 29883
diff changeset
   454
zdvd_zminus_iff        -> dvd_minus_iff
nipkow
parents: 29883
diff changeset
   455
zdvd_zminus2_iff       -> minus_dvd_iff
nipkow
parents: 29883
diff changeset
   456
zdvd_zmultD            -> dvd_mult_right
nipkow
parents: 29883
diff changeset
   457
zdvd_zmultD2           -> dvd_mult_left
nipkow
parents: 29883
diff changeset
   458
zdvd_zmult_mono        -> mult_dvd_mono
nipkow
parents: 29883
diff changeset
   459
zdvd_0_right           -> dvd_0_right
nipkow
parents: 29883
diff changeset
   460
zdvd_0_left            -> dvd_0_left_iff
nipkow
parents: 29883
diff changeset
   461
zdvd_1_left            -> one_dvd
nipkow
parents: 29883
diff changeset
   462
zminus_dvd_iff         -> minus_dvd_iff
nipkow
parents: 29883
diff changeset
   463
27599
ca23ef50c178 added command 'linear_undo';
wenzelm
parents: 27556
diff changeset
   464
* HOL/Library/GCD: Curried operations gcd, lcm (for nat) and zgcd,
ca23ef50c178 added command 'linear_undo';
wenzelm
parents: 27556
diff changeset
   465
zlcm (for int); carried together from various gcd/lcm developements in
ca23ef50c178 added command 'linear_undo';
wenzelm
parents: 27556
diff changeset
   466
the HOL Distribution.  zgcd and zlcm replace former igcd and ilcm;
30176
78610979b3c6 add news for HOLCF; fixed some typos and inaccuracies
huffman
parents: 30163
diff changeset
   467
corresponding theorems renamed accordingly.  INCOMPATIBILITY.  To
27599
ca23ef50c178 added command 'linear_undo';
wenzelm
parents: 27556
diff changeset
   468
recover tupled syntax, use syntax declarations like:
27556
292098f2efdf unified curried gcd, lcm, zgcd, zlcm
haftmann
parents: 27551
diff changeset
   469
292098f2efdf unified curried gcd, lcm, zgcd, zlcm
haftmann
parents: 27551
diff changeset
   470
    hide (open) const gcd
292098f2efdf unified curried gcd, lcm, zgcd, zlcm
haftmann
parents: 27551
diff changeset
   471
    abbreviation gcd where
292098f2efdf unified curried gcd, lcm, zgcd, zlcm
haftmann
parents: 27551
diff changeset
   472
      "gcd == (%(a, b). GCD.gcd a b)"
292098f2efdf unified curried gcd, lcm, zgcd, zlcm
haftmann
parents: 27551
diff changeset
   473
    notation (output)
292098f2efdf unified curried gcd, lcm, zgcd, zlcm
haftmann
parents: 27551
diff changeset
   474
      GCD.gcd ("gcd '(_, _')")
292098f2efdf unified curried gcd, lcm, zgcd, zlcm
haftmann
parents: 27551
diff changeset
   475
292098f2efdf unified curried gcd, lcm, zgcd, zlcm
haftmann
parents: 27551
diff changeset
   476
(analogously for lcm, zgcd, zlcm).
292098f2efdf unified curried gcd, lcm, zgcd, zlcm
haftmann
parents: 27551
diff changeset
   477
292098f2efdf unified curried gcd, lcm, zgcd, zlcm
haftmann
parents: 27551
diff changeset
   478
* HOL/Real/Rational: 'Fract k 0' now equals '0'.  INCOMPATIBILITY.
27551
9a5543d4cc24 Fract now total; improved code generator setup
haftmann
parents: 27519
diff changeset
   479
28964
nipkow
parents: 28952
diff changeset
   480
* The real numbers offer decimal input syntax: 12.34 is translated into
30176
78610979b3c6 add news for HOLCF; fixed some typos and inaccuracies
huffman
parents: 30163
diff changeset
   481
  1234/10^2. This translation is not reversed upon output.
28964
nipkow
parents: 28952
diff changeset
   482
27651
16a26996c30e moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents: 27599
diff changeset
   483
* New ML antiquotation @{code}: takes constant as argument, generates
16a26996c30e moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents: 27599
diff changeset
   484
corresponding code in background and inserts name of the corresponding
16a26996c30e moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents: 27599
diff changeset
   485
resulting ML value/function/datatype constructor binding in place.
16a26996c30e moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents: 27599
diff changeset
   486
All occurrences of @{code} with a single ML block are generated
16a26996c30e moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents: 27599
diff changeset
   487
simultaneously.  Provides a generic and safe interface for
16a26996c30e moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents: 27599
diff changeset
   488
instrumentalizing code generation.  See HOL/ex/Code_Antiq for a toy
16a26996c30e moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents: 27599
diff changeset
   489
example, or HOL/Complex/ex/ReflectedFerrack for a more ambitious
16a26996c30e moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents: 27599
diff changeset
   490
application.  In future you ought refrain from ad-hoc compiling
16a26996c30e moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents: 27599
diff changeset
   491
generated SML code on the ML toplevel.  Note that (for technical
16a26996c30e moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents: 27599
diff changeset
   492
reasons) @{code} cannot refer to constants for which user-defined
16a26996c30e moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents: 27599
diff changeset
   493
serializations are set.  Refer to the corresponding ML counterpart
16a26996c30e moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents: 27599
diff changeset
   494
directly in that cases.
16a26996c30e moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents: 27599
diff changeset
   495
27424
594fd97ce3d1 HOL += HOL-Complex
haftmann
parents: 27421
diff changeset
   496
* Integrated image HOL-Complex with HOL.  Entry points Main.thy and
594fd97ce3d1 HOL += HOL-Complex
haftmann
parents: 27421
diff changeset
   497
Complex_Main.thy remain as they are.
594fd97ce3d1 HOL += HOL-Complex
haftmann
parents: 27421
diff changeset
   498
27599
ca23ef50c178 added command 'linear_undo';
wenzelm
parents: 27556
diff changeset
   499
* New image HOL-Plain provides a minimal HOL with the most important
ca23ef50c178 added command 'linear_undo';
wenzelm
parents: 27556
diff changeset
   500
tools available (inductive, datatype, primrec, ...).  By convention
ca23ef50c178 added command 'linear_undo';
wenzelm
parents: 27556
diff changeset
   501
the corresponding theory Plain should be ancestor of every further
ca23ef50c178 added command 'linear_undo';
wenzelm
parents: 27556
diff changeset
   502
(library) theory.  Some library theories now have ancestor Plain
ca23ef50c178 added command 'linear_undo';
wenzelm
parents: 27556
diff changeset
   503
(instead of Main), thus theory Main occasionally has to be imported
ca23ef50c178 added command 'linear_undo';
wenzelm
parents: 27556
diff changeset
   504
explicitly.
27421
7e458bd56860 HOL += HOL-Complex
haftmann
parents: 27393
diff changeset
   505
28248
b2869ebcf8e3 separate emacs tool for Proof General / Emacs;
wenzelm
parents: 28233
diff changeset
   506
* The metis method now fails in the usual manner, rather than raising
b2869ebcf8e3 separate emacs tool for Proof General / Emacs;
wenzelm
parents: 28233
diff changeset
   507
an exception, if it determines that it cannot prove the theorem.
28233
f14f34194f63 The metis method now fails in the usual manner, rather than raising an exception,
paulson
parents: 28227
diff changeset
   508
28700
fb92b1d1b285 The metis method no longer fails because the theorem is too trivial
paulson
parents: 28685
diff changeset
   509
* The metis method no longer fails because the theorem is too trivial
fb92b1d1b285 The metis method no longer fails because the theorem is too trivial
paulson
parents: 28685
diff changeset
   510
(contains the empty clause).
fb92b1d1b285 The metis method no longer fails because the theorem is too trivial
paulson
parents: 28685
diff changeset
   511
27324
904acdaf4299 induct_tac: mutual rules work as for method "induct";
wenzelm
parents: 27305
diff changeset
   512
* Methods "case_tac" and "induct_tac" now refer to the very same rules
904acdaf4299 induct_tac: mutual rules work as for method "induct";
wenzelm
parents: 27305
diff changeset
   513
as the structured Isar versions "cases" and "induct", cf. the
904acdaf4299 induct_tac: mutual rules work as for method "induct";
wenzelm
parents: 27305
diff changeset
   514
corresponding "cases" and "induct" attributes.  Mutual induction rules
904acdaf4299 induct_tac: mutual rules work as for method "induct";
wenzelm
parents: 27305
diff changeset
   515
are now presented as a list of individual projections
904acdaf4299 induct_tac: mutual rules work as for method "induct";
wenzelm
parents: 27305
diff changeset
   516
(e.g. foo_bar.inducts for types foo and bar); the old format with
904acdaf4299 induct_tac: mutual rules work as for method "induct";
wenzelm
parents: 27305
diff changeset
   517
explicit HOL conjunction is no longer supported.  INCOMPATIBILITY, in
904acdaf4299 induct_tac: mutual rules work as for method "induct";
wenzelm
parents: 27305
diff changeset
   518
rare situations a different rule is selected --- notably nested tuple
904acdaf4299 induct_tac: mutual rules work as for method "induct";
wenzelm
parents: 27305
diff changeset
   519
elimination instead of former prod.exhaust: use explicit (case_tac t
904acdaf4299 induct_tac: mutual rules work as for method "induct";
wenzelm
parents: 27305
diff changeset
   520
rule: prod.exhaust) here.
27122
63d92a5e3784 proper news header;
wenzelm
parents: 27104
diff changeset
   521
27141
9bfcdb1905e1 * Attributes cases, induct, coinduct support del option.
wenzelm
parents: 27122
diff changeset
   522
* Attributes "cases", "induct", "coinduct" support "del" option.
9bfcdb1905e1 * Attributes cases, induct, coinduct support del option.
wenzelm
parents: 27122
diff changeset
   523
27122
63d92a5e3784 proper news header;
wenzelm
parents: 27104
diff changeset
   524
* Removed fact "case_split_thm", which duplicates "case_split".
63d92a5e3784 proper news header;
wenzelm
parents: 27104
diff changeset
   525
63d92a5e3784 proper news header;
wenzelm
parents: 27104
diff changeset
   526
* Command 'rep_datatype': instead of theorem names the command now
63d92a5e3784 proper news header;
wenzelm
parents: 27104
diff changeset
   527
takes a list of terms denoting the constructors of the type to be
63d92a5e3784 proper news header;
wenzelm
parents: 27104
diff changeset
   528
represented as datatype.  The characteristic theorems have to be
63d92a5e3784 proper news header;
wenzelm
parents: 27104
diff changeset
   529
proven.  INCOMPATIBILITY.  Also observe that the following theorems
63d92a5e3784 proper news header;
wenzelm
parents: 27104
diff changeset
   530
have disappeared in favour of existing ones:
63d92a5e3784 proper news header;
wenzelm
parents: 27104
diff changeset
   531
27104
791607529f6d rep_datatype command now takes list of constructors as input arguments
haftmann
parents: 27067
diff changeset
   532
    unit_induct                 ~> unit.induct
791607529f6d rep_datatype command now takes list of constructors as input arguments
haftmann
parents: 27067
diff changeset
   533
    prod_induct                 ~> prod.induct
791607529f6d rep_datatype command now takes list of constructors as input arguments
haftmann
parents: 27067
diff changeset
   534
    sum_induct                  ~> sum.induct
791607529f6d rep_datatype command now takes list of constructors as input arguments
haftmann
parents: 27067
diff changeset
   535
    Suc_Suc_eq                  ~> nat.inject
791607529f6d rep_datatype command now takes list of constructors as input arguments
haftmann
parents: 27067
diff changeset
   536
    Suc_not_Zero Zero_not_Suc   ~> nat.distinct
791607529f6d rep_datatype command now takes list of constructors as input arguments
haftmann
parents: 27067
diff changeset
   537
30235
58d147683393 Made Option a separate theory and renamed option_map to Option.map
nipkow
parents: 30224
diff changeset
   538
* The option datatype has been moved to a new theory HOL/Option.thy.
30250
05d312f09a25 NEWS: renamed o2s to Option.set;
wenzelm
parents: 30235
diff changeset
   539
Renamed option_map to Option.map, and o2s to Option.set.
30235
58d147683393 Made Option a separate theory and renamed option_map to Option.map
nipkow
parents: 30224
diff changeset
   540
27122
63d92a5e3784 proper news header;
wenzelm
parents: 27104
diff changeset
   541
* Library/Nat_Infinity: added addition, numeral syntax and more
63d92a5e3784 proper news header;
wenzelm
parents: 27104
diff changeset
   542
instantiations for algebraic structures.  Removed some duplicate
63d92a5e3784 proper news header;
wenzelm
parents: 27104
diff changeset
   543
theorems.  Changes in simp rules.  INCOMPATIBILITY.
27104
791607529f6d rep_datatype command now takes list of constructors as input arguments
haftmann
parents: 27067
diff changeset
   544
28088
723735f2d73a * Name bindings in higher specification mechanisms;
wenzelm
parents: 28085
diff changeset
   545
* ATP selection (E/Vampire/Spass) is now via Proof General's settings
723735f2d73a * Name bindings in higher specification mechanisms;
wenzelm
parents: 28085
diff changeset
   546
menu.
28067
4b6783d3f0d9 *** empty log message ***
nipkow
parents: 28058
diff changeset
   547
27104
791607529f6d rep_datatype command now takes list of constructors as input arguments
haftmann
parents: 27067
diff changeset
   548
27696
15b65db66751 Unit_inv_l, Unit_inv_r made [simp];
ballarin
parents: 27681
diff changeset
   549
*** HOL-Algebra ***
15b65db66751 Unit_inv_l, Unit_inv_r made [simp];
ballarin
parents: 27681
diff changeset
   550
27713
95b36bfe7fc4 New locales for orders and lattices where the equivalence relation is not restricted to equality.
ballarin
parents: 27704
diff changeset
   551
* New locales for orders and lattices where the equivalence relation
30106
351fc2f8493d tuned NEWS;
wenzelm
parents: 30085
diff changeset
   552
is not restricted to equality.  INCOMPATIBILITY: all order and lattice
351fc2f8493d tuned NEWS;
wenzelm
parents: 30085
diff changeset
   553
locales use a record structure with field eq for the equivalence.
27713
95b36bfe7fc4 New locales for orders and lattices where the equivalence relation is not restricted to equality.
ballarin
parents: 27704
diff changeset
   554
95b36bfe7fc4 New locales for orders and lattices where the equivalence relation is not restricted to equality.
ballarin
parents: 27704
diff changeset
   555
* New theory of factorial domains.
95b36bfe7fc4 New locales for orders and lattices where the equivalence relation is not restricted to equality.
ballarin
parents: 27704
diff changeset
   556
27696
15b65db66751 Unit_inv_l, Unit_inv_r made [simp];
ballarin
parents: 27681
diff changeset
   557
* Units_l_inv and Units_r_inv are now simprules by default.
15b65db66751 Unit_inv_l, Unit_inv_r made [simp];
ballarin
parents: 27681
diff changeset
   558
INCOMPATIBILITY.  Simplifier proof that require deletion of l_inv
15b65db66751 Unit_inv_l, Unit_inv_r made [simp];
ballarin
parents: 27681
diff changeset
   559
and/or r_inv will now also require deletion of these lemmas.
15b65db66751 Unit_inv_l, Unit_inv_r made [simp];
ballarin
parents: 27681
diff changeset
   560
15b65db66751 Unit_inv_l, Unit_inv_r made [simp];
ballarin
parents: 27681
diff changeset
   561
* Renamed the following theorems.  INCOMPATIBILITY.
15b65db66751 Unit_inv_l, Unit_inv_r made [simp];
ballarin
parents: 27681
diff changeset
   562
UpperD ~> Upper_memD
15b65db66751 Unit_inv_l, Unit_inv_r made [simp];
ballarin
parents: 27681
diff changeset
   563
LowerD ~> Lower_memD
15b65db66751 Unit_inv_l, Unit_inv_r made [simp];
ballarin
parents: 27681
diff changeset
   564
least_carrier ~> least_closed
15b65db66751 Unit_inv_l, Unit_inv_r made [simp];
ballarin
parents: 27681
diff changeset
   565
greatest_carrier ~> greatest_closed
15b65db66751 Unit_inv_l, Unit_inv_r made [simp];
ballarin
parents: 27681
diff changeset
   566
greatest_Lower_above ~> greatest_Lower_below
27717
21bbd410ba04 Generalised polynomial lemmas from cring to ring.
ballarin
parents: 27713
diff changeset
   567
one_zero ~> carrier_one_zero
21bbd410ba04 Generalised polynomial lemmas from cring to ring.
ballarin
parents: 27713
diff changeset
   568
one_not_zero ~> carrier_one_not_zero  (collision with assumption)
27696
15b65db66751 Unit_inv_l, Unit_inv_r made [simp];
ballarin
parents: 27681
diff changeset
   569
27793
29ad1d91a5a3 tuned formatting;
wenzelm
parents: 27761
diff changeset
   570
27485
a5de2cbf548f HOL-NSA
huffman
parents: 27436
diff changeset
   571
*** HOL-NSA ***
a5de2cbf548f HOL-NSA
huffman
parents: 27436
diff changeset
   572
a5de2cbf548f HOL-NSA
huffman
parents: 27436
diff changeset
   573
* Created new image HOL-NSA, containing theories of nonstandard
a5de2cbf548f HOL-NSA
huffman
parents: 27436
diff changeset
   574
analysis which were previously part of HOL-Complex.  Entry point
a5de2cbf548f HOL-NSA
huffman
parents: 27436
diff changeset
   575
Hyperreal.thy remains valid, but theories formerly using
a5de2cbf548f HOL-NSA
huffman
parents: 27436
diff changeset
   576
Complex_Main.thy should now use new entry point Hypercomplex.thy.
a5de2cbf548f HOL-NSA
huffman
parents: 27436
diff changeset
   577
a5de2cbf548f HOL-NSA
huffman
parents: 27436
diff changeset
   578
27704
5b1585b48952 Zorn's Lemma for partial orders.
ballarin
parents: 27696
diff changeset
   579
*** ZF ***
5b1585b48952 Zorn's Lemma for partial orders.
ballarin
parents: 27696
diff changeset
   580
5b1585b48952 Zorn's Lemma for partial orders.
ballarin
parents: 27696
diff changeset
   581
* Proof of Zorn's Lemma for partial orders.
5b1585b48952 Zorn's Lemma for partial orders.
ballarin
parents: 27696
diff changeset
   582
5b1585b48952 Zorn's Lemma for partial orders.
ballarin
parents: 27696
diff changeset
   583
30176
78610979b3c6 add news for HOLCF; fixed some typos and inaccuracies
huffman
parents: 30163
diff changeset
   584
*** HOLCF ***
78610979b3c6 add news for HOLCF; fixed some typos and inaccuracies
huffman
parents: 30163
diff changeset
   585
78610979b3c6 add news for HOLCF; fixed some typos and inaccuracies
huffman
parents: 30163
diff changeset
   586
* Reimplemented the simplification procedure for proving continuity
78610979b3c6 add news for HOLCF; fixed some typos and inaccuracies
huffman
parents: 30163
diff changeset
   587
subgoals.  The new simproc is extensible; users can declare additional
78610979b3c6 add news for HOLCF; fixed some typos and inaccuracies
huffman
parents: 30163
diff changeset
   588
continuity introduction rules with the attribute [cont2cont].
78610979b3c6 add news for HOLCF; fixed some typos and inaccuracies
huffman
parents: 30163
diff changeset
   589
78610979b3c6 add news for HOLCF; fixed some typos and inaccuracies
huffman
parents: 30163
diff changeset
   590
* The continuity simproc now uses a different introduction rule for
78610979b3c6 add news for HOLCF; fixed some typos and inaccuracies
huffman
parents: 30163
diff changeset
   591
solving continuity subgoals on terms with lambda abstractions.  In
78610979b3c6 add news for HOLCF; fixed some typos and inaccuracies
huffman
parents: 30163
diff changeset
   592
some rare cases the new simproc may fail to solve subgoals that the
78610979b3c6 add news for HOLCF; fixed some typos and inaccuracies
huffman
parents: 30163
diff changeset
   593
old one could solve, and "simp add: cont2cont_LAM" may be necessary.
78610979b3c6 add news for HOLCF; fixed some typos and inaccuracies
huffman
parents: 30163
diff changeset
   594
Potential INCOMPATIBILITY.
78610979b3c6 add news for HOLCF; fixed some typos and inaccuracies
huffman
parents: 30163
diff changeset
   595
78610979b3c6 add news for HOLCF; fixed some typos and inaccuracies
huffman
parents: 30163
diff changeset
   596
* The syntax of the fixrec package has changed.  The specification
78610979b3c6 add news for HOLCF; fixed some typos and inaccuracies
huffman
parents: 30163
diff changeset
   597
syntax now conforms in style to definition, primrec, function, etc.
78610979b3c6 add news for HOLCF; fixed some typos and inaccuracies
huffman
parents: 30163
diff changeset
   598
See HOLCF/ex/Fixrec_ex.thy for examples.  INCOMPATIBILITY.
78610979b3c6 add news for HOLCF; fixed some typos and inaccuracies
huffman
parents: 30163
diff changeset
   599
78610979b3c6 add news for HOLCF; fixed some typos and inaccuracies
huffman
parents: 30163
diff changeset
   600
27246
df85326af57c * Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents: 27200
diff changeset
   601
*** ML ***
28088
723735f2d73a * Name bindings in higher specification mechanisms;
wenzelm
parents: 28085
diff changeset
   602
29161
9903e84a9c9c * Proofs of are run in parallel on multi-core systems;
wenzelm
parents: 29145
diff changeset
   603
* High-level support for concurrent ML programming, see
9903e84a9c9c * Proofs of are run in parallel on multi-core systems;
wenzelm
parents: 29145
diff changeset
   604
src/Pure/Cuncurrent.  The data-oriented model of "future values" is
9903e84a9c9c * Proofs of are run in parallel on multi-core systems;
wenzelm
parents: 29145
diff changeset
   605
particularly convenient to organize independent functional
9903e84a9c9c * Proofs of are run in parallel on multi-core systems;
wenzelm
parents: 29145
diff changeset
   606
computations.  The concept of "synchronized variables" provides a
9903e84a9c9c * Proofs of are run in parallel on multi-core systems;
wenzelm
parents: 29145
diff changeset
   607
higher-order interface for components with shared state, avoiding the
29162
wenzelm
parents: 29161
diff changeset
   608
delicate details of mutexes and condition variables.  [Poly/ML 5.2.1
wenzelm
parents: 29161
diff changeset
   609
or later]
29161
9903e84a9c9c * Proofs of are run in parallel on multi-core systems;
wenzelm
parents: 29145
diff changeset
   610
28294
wenzelm
parents: 28290
diff changeset
   611
* Simplified ML oracle interface Thm.add_oracle promotes 'a -> cterm
wenzelm
parents: 28290
diff changeset
   612
to 'a -> thm, while results are always tagged with an authentic oracle
wenzelm
parents: 28290
diff changeset
   613
name.  The Isar command 'oracle' is now polymorphic, no argument type
wenzelm
parents: 28290
diff changeset
   614
is specified.  INCOMPATIBILITY, need to simplify existing oracle code
wenzelm
parents: 28290
diff changeset
   615
accordingly.  Note that extra performance may be gained by producing
wenzelm
parents: 28290
diff changeset
   616
the cterm carefully, avoiding slow Thm.cterm_of.
wenzelm
parents: 28290
diff changeset
   617
28282
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   618
* ML bindings produced via Isar commands are stored within the Isar
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   619
context (theory or proof).  Consequently, commands like 'use' and 'ML'
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   620
become thread-safe and work with undo as expected (concerning
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   621
top-level bindings, not side-effects on global references).
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   622
INCOMPATIBILITY, need to provide proper Isar context when invoking the
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   623
compiler at runtime; really global bindings need to be given outside a
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   624
theory. [Poly/ML 5.2 or later]
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   625
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   626
* Command 'ML_prf' is analogous to 'ML' but works within a proof
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   627
context. Top-level ML bindings are stored within the proof context in
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   628
a purely sequential fashion, disregarding the nested proof structure.
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   629
ML bindings introduced by 'ML_prf' are discarded at the end of the
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   630
proof.  [Poly/ML 5.2 or later]
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   631
28099
fb16a07d6580 * Generic Toplevel.add_hook interface allows to analyze the result of
wenzelm
parents: 28089
diff changeset
   632
* Generic Toplevel.add_hook interface allows to analyze the result of
28103
b79e61861f0f simplified Toplevel.add_hook: cover successful transactions only;
wenzelm
parents: 28099
diff changeset
   633
transactions.  E.g. see src/Pure/ProofGeneral/proof_general_pgip.ML
b79e61861f0f simplified Toplevel.add_hook: cover successful transactions only;
wenzelm
parents: 28099
diff changeset
   634
for theorem dependency output of transactions resulting in a new
b79e61861f0f simplified Toplevel.add_hook: cover successful transactions only;
wenzelm
parents: 28099
diff changeset
   635
theory state.
28099
fb16a07d6580 * Generic Toplevel.add_hook interface allows to analyze the result of
wenzelm
parents: 28089
diff changeset
   636
28088
723735f2d73a * Name bindings in higher specification mechanisms;
wenzelm
parents: 28085
diff changeset
   637
* Name bindings in higher specification mechanisms (notably
723735f2d73a * Name bindings in higher specification mechanisms;
wenzelm
parents: 28085
diff changeset
   638
LocalTheory.define, LocalTheory.note, and derived packages) are now
723735f2d73a * Name bindings in higher specification mechanisms;
wenzelm
parents: 28085
diff changeset
   639
formalized as type Name.binding, replacing old bstring.
723735f2d73a * Name bindings in higher specification mechanisms;
wenzelm
parents: 28085
diff changeset
   640
INCOMPATIBILITY, need to wrap strings via Name.binding function, see
723735f2d73a * Name bindings in higher specification mechanisms;
wenzelm
parents: 28085
diff changeset
   641
also Name.name_of.  Packages should pass name bindings given by the
723735f2d73a * Name bindings in higher specification mechanisms;
wenzelm
parents: 28085
diff changeset
   642
user to underlying specification mechanisms; this enables precise
723735f2d73a * Name bindings in higher specification mechanisms;
wenzelm
parents: 28085
diff changeset
   643
tracking of source positions, for example.
723735f2d73a * Name bindings in higher specification mechanisms;
wenzelm
parents: 28085
diff changeset
   644
28089
66ae1926482a * Result facts now refer to the *full* internal name;
wenzelm
parents: 28088
diff changeset
   645
* Result facts (from PureThy.note_thms, ProofContext.note_thms,
66ae1926482a * Result facts now refer to the *full* internal name;
wenzelm
parents: 28088
diff changeset
   646
LocalTheory.note etc.) now refer to the *full* internal name, not the
66ae1926482a * Result facts now refer to the *full* internal name;
wenzelm
parents: 28088
diff changeset
   647
bstring as before.  INCOMPATIBILITY, not detected by ML type-checking!
66ae1926482a * Result facts now refer to the *full* internal name;
wenzelm
parents: 28088
diff changeset
   648
27246
df85326af57c * Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents: 27200
diff changeset
   649
* Rules and tactics that read instantiations (read_instantiate,
df85326af57c * Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents: 27200
diff changeset
   650
res_inst_tac, thin_tac, subgoal_tac etc.) now demand a proper proof
df85326af57c * Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents: 27200
diff changeset
   651
context, which is required for parsing and type-checking.  Moreover,
df85326af57c * Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents: 27200
diff changeset
   652
the variables are specified as plain indexnames, not string encodings
df85326af57c * Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents: 27200
diff changeset
   653
thereof.  INCOMPATIBILITY.
df85326af57c * Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents: 27200
diff changeset
   654
27287
3b0d7a417a8b disposed Sign.read_typ etc;
wenzelm
parents: 27269
diff changeset
   655
* Disposed old type and term read functions (Sign.read_def_typ,
3b0d7a417a8b disposed Sign.read_typ etc;
wenzelm
parents: 27269
diff changeset
   656
Sign.read_typ, Sign.read_def_terms, Sign.read_term,
3b0d7a417a8b disposed Sign.read_typ etc;
wenzelm
parents: 27269
diff changeset
   657
Thm.read_def_cterms, Thm.read_cterm etc.).  INCOMPATIBILITY, should
3b0d7a417a8b disposed Sign.read_typ etc;
wenzelm
parents: 27269
diff changeset
   658
use regular Syntax.read_typ, Syntax.read_term, Syntax.read_typ_global,
27269
1e9c05cddc64 * Disposed old term read functions;
wenzelm
parents: 27246
diff changeset
   659
Syntax.read_term_global etc.; see also OldGoals.read_term as last
1e9c05cddc64 * Disposed old term read functions;
wenzelm
parents: 27246
diff changeset
   660
resort for legacy applications.
1e9c05cddc64 * Disposed old term read functions;
wenzelm
parents: 27246
diff changeset
   661
27380
ca505e7b7591 ML: improved antiquotations;
wenzelm
parents: 27324
diff changeset
   662
* Antiquotations: block-structured compilation context indicated by
27391
6c4649134fd6 additional ML antiquotations;
wenzelm
parents: 27381
diff changeset
   663
\<lbrace> ... \<rbrace>; additional antiquotation forms:
6c4649134fd6 additional ML antiquotations;
wenzelm
parents: 27381
diff changeset
   664
27519
59b54d80d2ae slightly improved @{lemma} (both for latex and ML);
wenzelm
parents: 27485
diff changeset
   665
  @{let ?pat = term}                      - term abbreviation (HO matching)
59b54d80d2ae slightly improved @{lemma} (both for latex and ML);
wenzelm
parents: 27485
diff changeset
   666
  @{note name = fact}                     - fact abbreviation
59b54d80d2ae slightly improved @{lemma} (both for latex and ML);
wenzelm
parents: 27485
diff changeset
   667
  @{thm fact}                             - singleton fact (with attributes)
59b54d80d2ae slightly improved @{lemma} (both for latex and ML);
wenzelm
parents: 27485
diff changeset
   668
  @{thms fact}                            - general fact (with attributes)
59b54d80d2ae slightly improved @{lemma} (both for latex and ML);
wenzelm
parents: 27485
diff changeset
   669
  @{lemma prop by method}                 - singleton goal
59b54d80d2ae slightly improved @{lemma} (both for latex and ML);
wenzelm
parents: 27485
diff changeset
   670
  @{lemma prop by meth1 meth2}            - singleton goal
59b54d80d2ae slightly improved @{lemma} (both for latex and ML);
wenzelm
parents: 27485
diff changeset
   671
  @{lemma prop1 ... propN by method}      - general goal
59b54d80d2ae slightly improved @{lemma} (both for latex and ML);
wenzelm
parents: 27485
diff changeset
   672
  @{lemma prop1 ... propN by meth1 meth2} - general goal
59b54d80d2ae slightly improved @{lemma} (both for latex and ML);
wenzelm
parents: 27485
diff changeset
   673
  @{lemma (open) ...}                     - open derivation
27380
ca505e7b7591 ML: improved antiquotations;
wenzelm
parents: 27324
diff changeset
   674
27246
df85326af57c * Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents: 27200
diff changeset
   675
27979
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   676
*** System ***
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   677
28676
78688a5fafc2 multithreading support only for polyml-5.2.1 or later;
wenzelm
parents: 28633
diff changeset
   678
* Multithreading for Poly/ML 5.1/5.2 is no longer supported, only for
78688a5fafc2 multithreading support only for polyml-5.2.1 or later;
wenzelm
parents: 28633
diff changeset
   679
Poly/ML 5.2.1 or later.
28254
d67ba23e0277 multithreading for Poly/ML 5.1 is no longer supported;
wenzelm
parents: 28252
diff changeset
   680
28248
b2869ebcf8e3 separate emacs tool for Proof General / Emacs;
wenzelm
parents: 28233
diff changeset
   681
* The Isabelle "emacs" tool provides a specific interface to invoke
b2869ebcf8e3 separate emacs tool for Proof General / Emacs;
wenzelm
parents: 28233
diff changeset
   682
Proof General / Emacs, with more explicit failure if that is not
b2869ebcf8e3 separate emacs tool for Proof General / Emacs;
wenzelm
parents: 28233
diff changeset
   683
installed (the old isabelle-interface script silently falls back on
b2869ebcf8e3 separate emacs tool for Proof General / Emacs;
wenzelm
parents: 28233
diff changeset
   684
isabelle-process).  The PROOFGENERAL_HOME setting determines the
b2869ebcf8e3 separate emacs tool for Proof General / Emacs;
wenzelm
parents: 28233
diff changeset
   685
installation location of the Proof General distribution.
b2869ebcf8e3 separate emacs tool for Proof General / Emacs;
wenzelm
parents: 28233
diff changeset
   686
27979
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   687
* Isabelle/lib/classes/Pure.jar provides basic support to integrate
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   688
the Isabelle process into a JVM/Scala application.  See
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   689
Isabelle/lib/jedit/plugin for a minimal example.  (The obsolete Java
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   690
process wrapper has been discontinued.)
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   691
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   692
* Status messages (with exact source position information) are
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   693
emitted, if proper markup print mode is enabled.  This allows
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   694
user-interface components to provide detailed feedback on internal
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   695
prover operations.
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   696
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   697
* Homegrown Isabelle font with unicode layout, see Isabelle/lib/fonts.
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   698
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   699
27143
574a09bcdb02 tuned spacing;
wenzelm
parents: 27141
diff changeset
   700
27008
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   701
New in Isabelle2008 (June 2008)
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   702
-------------------------------
25464
0ca80ce89001 moved new NEWS from Isabelle2007 to this Isabelle version'';
wenzelm
parents: 25459
diff changeset
   703
25522
26851f8bdf14 \<chi> is now considered a letter;
wenzelm
parents: 25510
diff changeset
   704
*** General ***
26851f8bdf14 \<chi> is now considered a letter;
wenzelm
parents: 25510
diff changeset
   705
27061
a057cb0d7d55 reorganized isar-ref;
wenzelm
parents: 27008
diff changeset
   706
* The Isabelle/Isar Reference Manual (isar-ref) has been reorganized
a057cb0d7d55 reorganized isar-ref;
wenzelm
parents: 27008
diff changeset
   707
and updated, with formally checked references as hyperlinks.
a057cb0d7d55 reorganized isar-ref;
wenzelm
parents: 27008
diff changeset
   708
25994
d35484265f46 use_thy: do not set implicit ML context anymore;
wenzelm
parents: 25971
diff changeset
   709
* Theory loader: use_thy (and similar operations) no longer set the
d35484265f46 use_thy: do not set implicit ML context anymore;
wenzelm
parents: 25971
diff changeset
   710
implicit ML context, which was occasionally hard to predict and in
d35484265f46 use_thy: do not set implicit ML context anymore;
wenzelm
parents: 25971
diff changeset
   711
conflict with concurrency.  INCOMPATIBILITY, use ML within Isar which
d35484265f46 use_thy: do not set implicit ML context anymore;
wenzelm
parents: 25971
diff changeset
   712
provides a proper context already.
d35484265f46 use_thy: do not set implicit ML context anymore;
wenzelm
parents: 25971
diff changeset
   713
26323
73efc70edeef theory loader: discontinued *attached* ML scripts;
wenzelm
parents: 26315
diff changeset
   714
* Theory loader: old-style ML proof scripts being *attached* to a thy
73efc70edeef theory loader: discontinued *attached* ML scripts;
wenzelm
parents: 26315
diff changeset
   715
file are no longer supported.  INCOMPATIBILITY, regular 'uses' and
73efc70edeef theory loader: discontinued *attached* ML scripts;
wenzelm
parents: 26315
diff changeset
   716
'use' within a theory file will do the job.
73efc70edeef theory loader: discontinued *attached* ML scripts;
wenzelm
parents: 26315
diff changeset
   717
26650
f131f0fbf9cd * Name space merge now observes canonical order;
wenzelm
parents: 26575
diff changeset
   718
* Name space merge now observes canonical order, i.e. the second space
f131f0fbf9cd * Name space merge now observes canonical order;
wenzelm
parents: 26575
diff changeset
   719
is inserted into the first one, while existing entries in the first
26659
wenzelm
parents: 26650
diff changeset
   720
space take precedence.  INCOMPATIBILITY in rare situations, may try to
26650
f131f0fbf9cd * Name space merge now observes canonical order;
wenzelm
parents: 26575
diff changeset
   721
swap theory imports.
f131f0fbf9cd * Name space merge now observes canonical order;
wenzelm
parents: 26575
diff changeset
   722
27067
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   723
* Syntax: symbol \<chi> is now considered a letter.  Potential
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   724
INCOMPATIBILITY in identifier syntax etc.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   725
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   726
* Outer syntax: string tokens no longer admit escaped white space,
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   727
which was an accidental (undocumented) feature.  INCOMPATIBILITY, use
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   728
white space without escapes.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   729
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   730
* Outer syntax: string tokens may contain arbitrary character codes
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   731
specified via 3 decimal digits (as in SML).  E.g. "foo\095bar" for
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   732
"foo_bar".
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   733
25522
26851f8bdf14 \<chi> is now considered a letter;
wenzelm
parents: 25510
diff changeset
   734
25502
9200b36280c0 instance command as rudimentary class target
haftmann
parents: 25464
diff changeset
   735
*** Pure ***
9200b36280c0 instance command as rudimentary class target
haftmann
parents: 25464
diff changeset
   736
26718
0c652e82fdf4 * Context-dependent token translations.
wenzelm
parents: 26681
diff changeset
   737
* Context-dependent token translations.  Default setup reverts locally
0c652e82fdf4 * Context-dependent token translations.
wenzelm
parents: 26681
diff changeset
   738
fixed variables, and adds hilite markup for undeclared frees.
0c652e82fdf4 * Context-dependent token translations.
wenzelm
parents: 26681
diff changeset
   739
26681
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   740
* Unused theorems can be found using the new command 'unused_thms'.
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   741
There are three ways of invoking it:
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   742
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   743
(1) unused_thms
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   744
     Only finds unused theorems in the current theory.
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   745
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   746
(2) unused_thms thy_1 ... thy_n -
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   747
     Finds unused theorems in the current theory and all of its ancestors,
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   748
     excluding the theories thy_1 ... thy_n and all of their ancestors.
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   749
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   750
(3) unused_thms thy_1 ... thy_n - thy'_1 ... thy'_m
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   751
     Finds unused theorems in the theories thy'_1 ... thy'_m and all of
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   752
     their ancestors, excluding the theories thy_1 ... thy_n and all of
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   753
     their ancestors.
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   754
26718
0c652e82fdf4 * Context-dependent token translations.
wenzelm
parents: 26681
diff changeset
   755
In order to increase the readability of the list produced by
0c652e82fdf4 * Context-dependent token translations.
wenzelm
parents: 26681
diff changeset
   756
unused_thms, theorems that have been created by a particular instance
26874
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   757
of a theory command such as 'inductive' or 'function' are considered
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   758
to belong to the same "group", meaning that if at least one theorem in
26718
0c652e82fdf4 * Context-dependent token translations.
wenzelm
parents: 26681
diff changeset
   759
this group is used, the other theorems in the same group are no longer
0c652e82fdf4 * Context-dependent token translations.
wenzelm
parents: 26681
diff changeset
   760
reported as unused.  Moreover, if all theorems in the group are
0c652e82fdf4 * Context-dependent token translations.
wenzelm
parents: 26681
diff changeset
   761
unused, only one theorem in the group is displayed.
0c652e82fdf4 * Context-dependent token translations.
wenzelm
parents: 26681
diff changeset
   762
0c652e82fdf4 * Context-dependent token translations.
wenzelm
parents: 26681
diff changeset
   763
Note that proof objects have to be switched on in order for
0c652e82fdf4 * Context-dependent token translations.
wenzelm
parents: 26681
diff changeset
   764
unused_thms to work properly (i.e. !proofs must be >= 1, which is
26874
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   765
usually the case when using Proof General with the default settings).
26681
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   766
26650
f131f0fbf9cd * Name space merge now observes canonical order;
wenzelm
parents: 26575
diff changeset
   767
* Authentic naming of facts disallows ad-hoc overwriting of previous
f131f0fbf9cd * Name space merge now observes canonical order;
wenzelm
parents: 26575
diff changeset
   768
theorems within the same name space.  INCOMPATIBILITY, need to remove
f131f0fbf9cd * Name space merge now observes canonical order;
wenzelm
parents: 26575
diff changeset
   769
duplicate fact bindings, or even accidental fact duplications.  Note
f131f0fbf9cd * Name space merge now observes canonical order;
wenzelm
parents: 26575
diff changeset
   770
that tools may maintain dynamically scoped facts systematically, using
f131f0fbf9cd * Name space merge now observes canonical order;
wenzelm
parents: 26575
diff changeset
   771
PureThy.add_thms_dynamic.
f131f0fbf9cd * Name space merge now observes canonical order;
wenzelm
parents: 26575
diff changeset
   772
26660
f978a6f48949 added hide fact;
wenzelm
parents: 26659
diff changeset
   773
* Command 'hide' now allows to hide from "fact" name space as well.
f978a6f48949 added hide fact;
wenzelm
parents: 26659
diff changeset
   774
26496
49ae9456eba9 purely functional setup of claset/simpset/clasimpset;
wenzelm
parents: 26495
diff changeset
   775
* Eliminated destructive theorem database, simpset, claset, and
49ae9456eba9 purely functional setup of claset/simpset/clasimpset;
wenzelm
parents: 26495
diff changeset
   776
clasimpset.  Potential INCOMPATIBILITY, really need to observe linear
49ae9456eba9 purely functional setup of claset/simpset/clasimpset;
wenzelm
parents: 26495
diff changeset
   777
update of theories within ML code.
26479
3a2efce3e992 * Eliminated destructive theorem database.
wenzelm
parents: 26445
diff changeset
   778
26955
ebbaa935eae0 * Eliminated theory ProtoPure and CPure, leaving just one Pure theory.
wenzelm
parents: 26925
diff changeset
   779
* Eliminated theory ProtoPure and CPure, leaving just one Pure theory.
ebbaa935eae0 * Eliminated theory ProtoPure and CPure, leaving just one Pure theory.
wenzelm
parents: 26925
diff changeset
   780
INCOMPATIBILITY, object-logics depending on former Pure require
ebbaa935eae0 * Eliminated theory ProtoPure and CPure, leaving just one Pure theory.
wenzelm
parents: 26925
diff changeset
   781
additional setup PureThy.old_appl_syntax_setup; object-logics
ebbaa935eae0 * Eliminated theory ProtoPure and CPure, leaving just one Pure theory.
wenzelm
parents: 26925
diff changeset
   782
depending on former CPure need to refer to Pure.
26650
f131f0fbf9cd * Name space merge now observes canonical order;
wenzelm
parents: 26575
diff changeset
   783
26495
dd8996960cb0 fixed spelling;
wenzelm
parents: 26479
diff changeset
   784
* Commands 'use' and 'ML' are now purely functional, operating on
26479
3a2efce3e992 * Eliminated destructive theorem database.
wenzelm
parents: 26445
diff changeset
   785
theory/local_theory.  Removed former 'ML_setup' (on theory), use 'ML'
3a2efce3e992 * Eliminated destructive theorem database.
wenzelm
parents: 26445
diff changeset
   786
instead.  Added 'ML_val' as mere diagnostic replacement for 'ML'.
3a2efce3e992 * Eliminated destructive theorem database.
wenzelm
parents: 26445
diff changeset
   787
INCOMPATIBILITY.
3a2efce3e992 * Eliminated destructive theorem database.
wenzelm
parents: 26445
diff changeset
   788
26874
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   789
* Command 'setup': discontinued implicit version with ML reference.
26434
d004b791218e Command 'setup': discontinued implicit version.
wenzelm
parents: 26422
diff changeset
   790
25970
9053fd546501 * Default settings: PROOFGENERAL_OPTIONS no longer impose xemacs here;
wenzelm
parents: 25961
diff changeset
   791
* Instantiation target allows for simultaneous specification of class
9053fd546501 * Default settings: PROOFGENERAL_OPTIONS no longer impose xemacs here;
wenzelm
parents: 25961
diff changeset
   792
instance operations together with an instantiation proof.
9053fd546501 * Default settings: PROOFGENERAL_OPTIONS no longer impose xemacs here;
wenzelm
parents: 25961
diff changeset
   793
Type-checking phase allows to refer to class operations uniformly.
27067
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   794
See src/HOL/Complex/Complex.thy for an Isar example and
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   795
src/HOL/Library/Eval.thy for an ML example.
25502
9200b36280c0 instance command as rudimentary class target
haftmann
parents: 25464
diff changeset
   796
26201
d3363a854708 indexing literal facts: exclude background context;
wenzelm
parents: 26197
diff changeset
   797
* Indexing of literal facts: be more serious about including only
d3363a854708 indexing literal facts: exclude background context;
wenzelm
parents: 26197
diff changeset
   798
facts from the visible specification/proof context, but not the
d3363a854708 indexing literal facts: exclude background context;
wenzelm
parents: 26197
diff changeset
   799
background context (locale etc.).  Affects `prop` notation and method
d3363a854708 indexing literal facts: exclude background context;
wenzelm
parents: 26197
diff changeset
   800
"fact".  INCOMPATIBILITY: need to name facts explicitly in rare
d3363a854708 indexing literal facts: exclude background context;
wenzelm
parents: 26197
diff changeset
   801
situations.
d3363a854708 indexing literal facts: exclude background context;
wenzelm
parents: 26197
diff changeset
   802
26925
ce964f0df281 * Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents: 26920
diff changeset
   803
* Method "cases", "induct", "coinduct": removed obsolete/undocumented
ce964f0df281 * Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents: 26920
diff changeset
   804
"(open)" option, which used to expose internal bound variables to the
ce964f0df281 * Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents: 26920
diff changeset
   805
proof text.
ce964f0df281 * Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents: 26920
diff changeset
   806
ce964f0df281 * Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents: 26920
diff changeset
   807
* Isar statements: removed obsolete case "rule_context".
ce964f0df281 * Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents: 26920
diff changeset
   808
INCOMPATIBILITY, better use explicit fixes/assumes.
ce964f0df281 * Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents: 26920
diff changeset
   809
26874
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   810
* Locale proofs: default proof step now includes 'unfold_locales';
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   811
hence 'proof' without argument may be used to unfold locale
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   812
predicates.
26765
f2ea56490bfb unfold_locales part of default method.
ballarin
parents: 26762
diff changeset
   813
f2ea56490bfb unfold_locales part of default method.
ballarin
parents: 26762
diff changeset
   814
26762
78ed28528ca6 added lemma antiquotation
haftmann
parents: 26748
diff changeset
   815
*** Document preparation ***
78ed28528ca6 added lemma antiquotation
haftmann
parents: 26748
diff changeset
   816
26914
a4b7fe1068f9 * Simplified pdfsetup.sty;
wenzelm
parents: 26877
diff changeset
   817
* Simplified pdfsetup.sty: color/hyperref is used unconditionally for
a4b7fe1068f9 * Simplified pdfsetup.sty;
wenzelm
parents: 26877
diff changeset
   818
both pdf and dvi (hyperlinks usually work in xdvi as well); removed
a4b7fe1068f9 * Simplified pdfsetup.sty;
wenzelm
parents: 26877
diff changeset
   819
obsolete thumbpdf setup (contemporary PDF viewers do this on the
a4b7fe1068f9 * Simplified pdfsetup.sty;
wenzelm
parents: 26877
diff changeset
   820
spot); renamed link color from "darkblue" to "linkcolor" (default
26920
wenzelm
parents: 26914
diff changeset
   821
value unchanged, can be redefined via \definecolor); no longer sets
wenzelm
parents: 26914
diff changeset
   822
"a4paper" option (unnecessary or even intrusive).
26914
a4b7fe1068f9 * Simplified pdfsetup.sty;
wenzelm
parents: 26877
diff changeset
   823
27008
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   824
* Antiquotation @{lemma A method} proves proposition A by the given
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   825
method (either a method name or a method name plus (optional) method
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   826
arguments in parentheses) and prints A just like @{prop A}.
26762
78ed28528ca6 added lemma antiquotation
haftmann
parents: 26748
diff changeset
   827
78ed28528ca6 added lemma antiquotation
haftmann
parents: 26748
diff changeset
   828
25464
0ca80ce89001 moved new NEWS from Isabelle2007 to this Isabelle version'';
wenzelm
parents: 25459
diff changeset
   829
*** HOL ***
0ca80ce89001 moved new NEWS from Isabelle2007 to this Isabelle version'';
wenzelm
parents: 25459
diff changeset
   830
27067
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   831
* New primrec package.  Specification syntax conforms in style to
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   832
definition/function/....  No separate induction rule is provided.  The
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   833
"primrec" command distinguishes old-style and new-style specifications
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   834
by syntax.  The former primrec package is now named OldPrimrecPackage.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   835
When adjusting theories, beware: constants stemming from new-style
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   836
primrec specifications have authentic syntax.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   837
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   838
* Metis prover is now an order of magnitude faster, and also works
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   839
with multithreading.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   840
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   841
* Metis: the maximum number of clauses that can be produced from a
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   842
theorem is now given by the attribute max_clauses.  Theorems that
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   843
exceed this number are ignored, with a warning printed.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   844
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   845
* Sledgehammer no longer produces structured proofs by default. To
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   846
enable, declare [[sledgehammer_full = true]].  Attributes
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   847
reconstruction_modulus, reconstruction_sorts renamed
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   848
sledgehammer_modulus, sledgehammer_sorts.  INCOMPATIBILITY.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   849
27104
791607529f6d rep_datatype command now takes list of constructors as input arguments
haftmann
parents: 27067
diff changeset
   850
* Method "induct_scheme" derives user-specified induction rules
27067
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   851
from well-founded induction and completeness of patterns. This factors
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   852
out some operations that are done internally by the function package
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   853
and makes them available separately.  See
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   854
src/HOL/ex/Induction_Scheme.thy for examples.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   855
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   856
* More flexible generation of measure functions for termination
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   857
proofs: Measure functions can be declared by proving a rule of the
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   858
form "is_measure f" and giving it the [measure_function] attribute.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   859
The "is_measure" predicate is logically meaningless (always true), and
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   860
just guides the heuristic.  To find suitable measure functions, the
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   861
termination prover sets up the goal "is_measure ?f" of the appropriate
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   862
type and generates all solutions by prolog-style backwards proof using
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   863
the declared rules.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   864
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   865
This setup also deals with rules like 
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   866
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   867
  "is_measure f ==> is_measure (list_size f)"
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   868
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   869
which accommodates nested datatypes that recurse through lists.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   870
Similar rules are predeclared for products and option types.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   871
26964
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   872
* Turned the type of sets "'a set" into an abbreviation for "'a => bool"
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   873
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   874
  INCOMPATIBILITIES:
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   875
27008
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   876
  - Definitions of overloaded constants on sets have to be replaced by
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   877
    definitions on => and bool.
26964
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   878
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   879
  - Some definitions of overloaded operators on sets can now be proved
27008
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   880
    using the definitions of the operators on => and bool.  Therefore,
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   881
    the following theorems have been renamed:
26964
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   882
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   883
      subset_def   -> subset_eq
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   884
      psubset_def  -> psubset_eq
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   885
      set_diff_def -> set_diff_eq
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   886
      Compl_def    -> Compl_eq
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   887
      Sup_set_def  -> Sup_set_eq
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   888
      Inf_set_def  -> Inf_set_eq
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   889
      sup_set_def  -> sup_set_eq
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   890
      inf_set_def  -> inf_set_eq
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   891
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   892
  - Due to the incompleteness of the HO unification algorithm, some
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   893
    rules such as subst may require manual instantiation, if some of
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   894
    the unknowns in the rule is a set.
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   895
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   896
  - Higher order unification and forward proofs:
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   897
    The proof pattern
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   898
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   899
      have "P (S::'a set)" <...>
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   900
      then have "EX S. P S" ..
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   901
27008
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   902
    no longer works (due to the incompleteness of the HO unification
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   903
    algorithm) and must be replaced by the pattern
26964
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   904
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   905
      have "EX S. P S"
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   906
      proof
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   907
        show "P S" <...>
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   908
      qed
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   909
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   910
  - Calculational reasoning with subst (or similar rules):
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   911
    The proof pattern
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   912
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   913
      have "P (S::'a set)" <...>
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   914
      also have "S = T" <...>
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   915
      finally have "P T" .
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   916
27008
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   917
    no longer works (for similar reasons as the previous example) and
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   918
    must be replaced by something like
26964
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   919
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   920
      have "P (S::'a set)" <...>
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   921
      moreover have "S = T" <...>
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   922
      ultimately have "P T" by simp
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   923
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   924
  - Tactics or packages written in ML code:
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   925
    Code performing pattern matching on types via
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   926
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   927
      Type ("set", [T]) => ...
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   928
27008
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   929
    must be rewritten. Moreover, functions like strip_type or
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   930
    binder_types no longer return the right value when applied to a
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   931
    type of the form
26964
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   932
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   933
      T1 => ... => Tn => U => bool
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   934
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   935
    rather than
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   936
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   937
      T1 => ... => Tn => U set
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   938
26874
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   939
* Merged theories Wellfounded_Recursion, Accessible_Part and
27067
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   940
Wellfounded_Relations to theory Wellfounded.
26748
4d51ddd6aa5c Merged theories about wellfoundedness into one: Wellfounded.thy
krauss
parents: 26724
diff changeset
   941
26513
6f306c8c2c54 explicit class "eq" for operational equality
haftmann
parents: 26500
diff changeset
   942
* Explicit class "eq" for executable equality.  INCOMPATIBILITY.
6f306c8c2c54 explicit class "eq" for operational equality
haftmann
parents: 26500
diff changeset
   943
26874
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   944
* Class finite no longer treats UNIV as class parameter.  Use class
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   945
enum from theory Library/Enum instead to achieve a similar effect.
26445
17223cf843d8 explicit case names for rule list_induct2
haftmann
parents: 26434
diff changeset
   946
INCOMPATIBILITY.
17223cf843d8 explicit case names for rule list_induct2
haftmann
parents: 26434
diff changeset
   947
26874
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   948
* Theory List: rule list_induct2 now has explicitly named cases "Nil"
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   949
and "Cons".  INCOMPATIBILITY.
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   950
26422
d5883907c514 HOL (and FOL): renamed variables in rules imp_elim and swap;
wenzelm
parents: 26401
diff changeset
   951
* HOL (and FOL): renamed variables in rules imp_elim and swap.
d5883907c514 HOL (and FOL): renamed variables in rules imp_elim and swap;
wenzelm
parents: 26401
diff changeset
   952
Potential INCOMPATIBILITY.
d5883907c514 HOL (and FOL): renamed variables in rules imp_elim and swap;
wenzelm
parents: 26401
diff changeset
   953
26874
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   954
* Theory Product_Type: duplicated lemmas split_Pair_apply and
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   955
injective_fst_snd removed, use split_eta and prod_eqI instead.
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   956
Renamed upd_fst to apfst and upd_snd to apsnd.  INCOMPATIBILITY.
26355
9276633fdc24 Theory Product_Type; fixed typos
haftmann
parents: 26335
diff changeset
   957
26335
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   958
* Theory Nat: removed redundant lemmas that merely duplicate lemmas of
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   959
the same name in theory Orderings:
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   960
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   961
  less_trans
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   962
  less_linear
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   963
  le_imp_less_or_eq
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   964
  le_less_trans
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   965
  less_le_trans
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   966
  less_not_sym
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   967
  less_asym
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   968
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   969
Renamed less_imp_le to less_imp_le_nat, and less_irrefl to
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   970
less_irrefl_nat.  Potential INCOMPATIBILITY due to more general types
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   971
and different variable names.
26315
cb3badaa192e removed redundant less_trans, less_linear, le_imp_less_or_eq, le_less_trans, less_le_trans (cf. Orderings.thy);
wenzelm
parents: 26231
diff changeset
   972
26231
cd9d7f449369 added entries
haftmann
parents: 26222
diff changeset
   973
* Library/Option_ord.thy: Canonical order on option type.
cd9d7f449369 added entries
haftmann
parents: 26222
diff changeset
   974
27008
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   975
* Library/RBT.thy: Red-black trees, an efficient implementation of
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   976
finite maps.
26197
46e63f49c946 NEWS: RBTs, renamings in ZF
krauss
parents: 26188
diff changeset
   977
26231
cd9d7f449369 added entries
haftmann
parents: 26222
diff changeset
   978
* Library/Countable.thy: Type class for countable types.
cd9d7f449369 added entries
haftmann
parents: 26222
diff changeset
   979
26180
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   980
* Theory Int: The representation of numerals has changed.  The infix
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   981
operator BIT and the bit datatype with constructors B0 and B1 have
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   982
disappeared.  INCOMPATIBILITY, use "Int.Bit0 x" and "Int.Bit1 y" in
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   983
place of "x BIT bit.B0" and "y BIT bit.B1", respectively.  Theorems
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   984
involving BIT, B0, or B1 have been renamed with "Bit0" or "Bit1"
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   985
accordingly.
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   986
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   987
* Theory Nat: definition of <= and < on natural numbers no longer
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   988
depend on well-founded relations.  INCOMPATIBILITY.  Definitions
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   989
le_def and less_def have disappeared.  Consider lemmas not_less
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   990
[symmetric, where ?'a = nat] and less_eq [symmetric] instead.
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   991
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   992
* Theory Finite_Set: locales ACf, ACe, ACIf, ACIfSL and ACIfSLlin
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   993
(whose purpose mainly is for various fold_set functionals) have been
26874
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   994
abandoned in favor of the existing algebraic classes
26180
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   995
ab_semigroup_mult, comm_monoid_mult, ab_semigroup_idem_mult,
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   996
lower_semilattice (resp. upper_semilattice) and linorder.
26139
f7823a676ef7 added accidental omissions
haftmann
parents: 26086
diff changeset
   997
INCOMPATIBILITY.
26041
c2e15e65165f locales ACf, ACIf, ACIfSL and ACIfSLlin have been abandoned in favour of the existing algebraic classes ab_semigroup_mult, ab_semigroup_idem_mult, lower_semilattice (resp. uper_semilattice) and linorder
haftmann
parents: 26013
diff changeset
   998
26180
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   999
* Theory Transitive_Closure: induct and cases rules now declare proper
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
  1000
case_names ("base" and "step").  INCOMPATIBILITY.
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
  1001
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
  1002
* Theorem Inductive.lfp_ordinal_induct generalized to complete
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
  1003
lattices.  The form set-specific version is available as
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
  1004
Inductive.lfp_ordinal_induct_set.
26013
8764a1f1253b Theorem Inductive.lfp_ordinal_induct generalized to complete lattices
haftmann
parents: 26006
diff changeset
  1005
26874
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
  1006
* Renamed theorems "power.simps" to "power_int.simps".
27067
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1007
INCOMPATIBILITY.
25961
ec39d7e40554 moved definition of power on ints to theory Int
haftmann
parents: 25942
diff changeset
  1008
26180
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
  1009
* Class semiring_div provides basic abstract properties of semirings
25942
a52309ac4a4d added class semiring_div
haftmann
parents: 25919
diff changeset
  1010
with division and modulo operations.  Subsumes former class dvd_mod.
a52309ac4a4d added class semiring_div
haftmann
parents: 25919
diff changeset
  1011
26180
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
  1012
* Merged theories IntDef, Numeral and IntArith into unified theory
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
  1013
Int.  INCOMPATIBILITY.
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
  1014
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
  1015
* Theory Library/Code_Index: type "index" now represents natural
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
  1016
numbers rather than integers.  INCOMPATIBILITY.
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
  1017
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
  1018
* New class "uminus" with operation "uminus" (split of from class
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
  1019
"minus" which now only has operation "minus", binary).
25919
8b1c0d434824 joined theories IntDef, Numeral, IntArith to theory Int
haftmann
parents: 25900
diff changeset
  1020
INCOMPATIBILITY.
8b1c0d434824 joined theories IntDef, Numeral, IntArith to theory Int
haftmann
parents: 25900
diff changeset
  1021
25522
26851f8bdf14 \<chi> is now considered a letter;
wenzelm
parents: 25510
diff changeset
  1022
* Constants "card", "internal_split", "option_map" now with authentic
25919
8b1c0d434824 joined theories IntDef, Numeral, IntArith to theory Int
haftmann
parents: 25900
diff changeset
  1023
syntax.  INCOMPATIBILITY.
25522
26851f8bdf14 \<chi> is now considered a letter;
wenzelm
parents: 25510
diff changeset
  1024
26851f8bdf14 \<chi> is now considered a letter;
wenzelm
parents: 25510
diff changeset
  1025
* Definitions subset_def, psubset_def, set_diff_def, Compl_def,
26851f8bdf14 \<chi> is now considered a letter;
wenzelm
parents: 25510
diff changeset
  1026
le_bool_def, less_bool_def, le_fun_def, less_fun_def, inf_bool_def,
26851f8bdf14 \<chi> is now considered a letter;
wenzelm
parents: 25510
diff changeset
  1027
sup_bool_def, Inf_bool_def, Sup_bool_def, inf_fun_def, sup_fun_def,
26851f8bdf14 \<chi> is now considered a letter;
wenzelm
parents: 25510
diff changeset
  1028
Inf_fun_def, Sup_fun_def, inf_set_def, sup_set_def, Inf_set_def,
26851f8bdf14 \<chi> is now considered a letter;
wenzelm
parents: 25510
diff changeset
  1029
Sup_set_def, le_def, less_def, option_map_def now with object
25919
8b1c0d434824 joined theories IntDef, Numeral, IntArith to theory Int
haftmann
parents: 25900
diff changeset
  1030
equality.  INCOMPATIBILITY.
25464
0ca80ce89001 moved new NEWS from Isabelle2007 to this Isabelle version'';
wenzelm
parents: 25459
diff changeset
  1031
25705
45a2ffc5911e replaced K_record by lambda term %x. c
schirmer
parents: 25664
diff changeset
  1032
* Records. Removed K_record, and replaced it by pure lambda term
25726
9728f319ffc6 * Metis prover an order of magnitude faster, works with multithreading.
wenzelm
parents: 25712
diff changeset
  1033
%x. c. The simplifier setup is now more robust against eta expansion.
25705
45a2ffc5911e replaced K_record by lambda term %x. c
schirmer
parents: 25664
diff changeset
  1034
INCOMPATIBILITY: in cases explicitly referring to K_record.
25464
0ca80ce89001 moved new NEWS from Isabelle2007 to this Isabelle version'';
wenzelm
parents: 25459
diff changeset
  1035
27067
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1036
* Library/Multiset: {#a, b, c#} abbreviates {#a#} + {#b#} + {#c#}.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1037
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1038
* Library/ListVector: new theory of arithmetic vector operations.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1039
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1040
* Library/Order_Relation: new theory of various orderings as sets of
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1041
pairs.  Defines preorders, partial orders, linear orders and
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1042
well-orders on sets and on types.
26877
c3bb1f397811 NEWS about measure functions
krauss
parents: 26874
diff changeset
  1043
25726
9728f319ffc6 * Metis prover an order of magnitude faster, works with multithreading.
wenzelm
parents: 25712
diff changeset
  1044
26197
46e63f49c946 NEWS: RBTs, renamings in ZF
krauss
parents: 26188
diff changeset
  1045
*** ZF ***
46e63f49c946 NEWS: RBTs, renamings in ZF
krauss
parents: 26188
diff changeset
  1046
26874
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
  1047
* Renamed some theories to allow to loading both ZF and HOL in the
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
  1048
same session:
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
  1049
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
  1050
  Datatype  -> Datatype_ZF
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
  1051
  Inductive -> Inductive_ZF
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
  1052
  Int       -> Int_ZF
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
  1053
  IntDiv    -> IntDiv_ZF
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
  1054
  Nat       -> Nat_ZF
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
  1055
  List      -> List_ZF
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
  1056
  Main      -> Main_ZF
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
  1057
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
  1058
INCOMPATIBILITY: ZF theories that import individual theories below
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
  1059
Main might need to be adapted.  Regular theory Main is still
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
  1060
available, as trivial extension of Main_ZF.
26197
46e63f49c946 NEWS: RBTs, renamings in ZF
krauss
parents: 26188
diff changeset
  1061
46e63f49c946 NEWS: RBTs, renamings in ZF
krauss
parents: 26188
diff changeset
  1062
25737
84c92fc48e36 ``print mode'' is now a thread-local value derived from a global template;
wenzelm
parents: 25726
diff changeset
  1063
*** ML ***
84c92fc48e36 ``print mode'' is now a thread-local value derived from a global template;
wenzelm
parents: 25726
diff changeset
  1064
27067
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1065
* ML within Isar: antiquotation @{const name} or @{const
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1066
name(typargs)} produces statically-checked Const term.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1067
26401
e7a94081dce7 Functor NamedThmsFun: data is available to the user as dynamic fact;
wenzelm
parents: 26387
diff changeset
  1068
* Functor NamedThmsFun: data is available to the user as dynamic fact
26724
ff6ff3a9010e NamedThmsFun: removed obsolete print command -- facts are accesible via dynamic name;
wenzelm
parents: 26718
diff changeset
  1069
(of the same name).  Removed obsolete print command.
26401
e7a94081dce7 Functor NamedThmsFun: data is available to the user as dynamic fact;
wenzelm
parents: 26387
diff changeset
  1070
27067
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1071
* Removed obsolete "use_legacy_bindings" function.
26188
9cb1b484fe96 added @{const} antiquotation;
wenzelm
parents: 26180
diff changeset
  1072
25737
84c92fc48e36 ``print mode'' is now a thread-local value derived from a global template;
wenzelm
parents: 25726
diff changeset
  1073
* The ``print mode'' is now a thread-local value derived from a global
84c92fc48e36 ``print mode'' is now a thread-local value derived from a global template;
wenzelm
parents: 25726
diff changeset
  1074
template (the former print_mode reference), thus access becomes
84c92fc48e36 ``print mode'' is now a thread-local value derived from a global template;
wenzelm
parents: 25726
diff changeset
  1075
non-critical.  The global print_mode reference is for session
84c92fc48e36 ``print mode'' is now a thread-local value derived from a global template;
wenzelm
parents: 25726
diff changeset
  1076
management only; user-code should use print_mode_value,
84c92fc48e36 ``print mode'' is now a thread-local value derived from a global template;
wenzelm
parents: 25726
diff changeset
  1077
print_mode_active, PrintMode.setmp etc.  INCOMPATIBILITY.
84c92fc48e36 ``print mode'' is now a thread-local value derived from a global template;
wenzelm
parents: 25726
diff changeset
  1078
26874
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
  1079
* Functions system/system_out provide a robust way to invoke external
29161
9903e84a9c9c * Proofs of are run in parallel on multi-core systems;
wenzelm
parents: 29145
diff changeset
  1080
shell commands, with propagation of interrupts (requires Poly/ML
9903e84a9c9c * Proofs of are run in parallel on multi-core systems;
wenzelm
parents: 29145
diff changeset
  1081
5.2.1).  Do not use OS.Process.system etc. from the basis library!
26222
edf6473ac9e9 * system/system_out provides a robust way to invoke external shell
wenzelm
parents: 26218
diff changeset
  1082
25737
84c92fc48e36 ``print mode'' is now a thread-local value derived from a global template;
wenzelm
parents: 25726
diff changeset
  1083
25626
3000965b1fdf * isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents: 25609
diff changeset
  1084
*** System ***
3000965b1fdf * isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents: 25609
diff changeset
  1085
25971
wenzelm
parents: 25970
diff changeset
  1086
* Default settings: PROOFGENERAL_OPTIONS no longer impose xemacs ---
wenzelm
parents: 25970
diff changeset
  1087
in accordance with Proof General 3.7, which prefers GNU emacs.
25970
9053fd546501 * Default settings: PROOFGENERAL_OPTIONS no longer impose xemacs here;
wenzelm
parents: 25961
diff changeset
  1088
25626
3000965b1fdf * isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents: 25609
diff changeset
  1089
* isatool tty runs Isabelle process with plain tty interaction;
3000965b1fdf * isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents: 25609
diff changeset
  1090
optional line editor may be specified via ISABELLE_LINE_EDITOR
3000965b1fdf * isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents: 25609
diff changeset
  1091
setting, the default settings attempt to locate "ledit" and "rlwrap".
3000965b1fdf * isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents: 25609
diff changeset
  1092
25651
6b2eb4e70ae3 * isatool browser now works with Cygwin;
wenzelm
parents: 25626
diff changeset
  1093
* isatool browser now works with Cygwin as well, using general
6b2eb4e70ae3 * isatool browser now works with Cygwin;
wenzelm
parents: 25626
diff changeset
  1094
"javapath" function defined in Isabelle process environment.
6b2eb4e70ae3 * isatool browser now works with Cygwin;
wenzelm
parents: 25626
diff changeset
  1095
27067
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1096
* YXML notation provides a simple and efficient alternative to
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1097
standard XML transfer syntax.  See src/Pure/General/yxml.ML and
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1098
isatool yxml as described in the Isabelle system manual.
25651
6b2eb4e70ae3 * isatool browser now works with Cygwin;
wenzelm
parents: 25626
diff changeset
  1099
25652
wenzelm
parents: 25651
diff changeset
  1100
* JVM class isabelle.IsabelleProcess (located in Isabelle/lib/classes)
25651
6b2eb4e70ae3 * isatool browser now works with Cygwin;
wenzelm
parents: 25626
diff changeset
  1101
provides general wrapper for managing an Isabelle process in a robust
6b2eb4e70ae3 * isatool browser now works with Cygwin;
wenzelm
parents: 25626
diff changeset
  1102
fashion, with ``cooked'' output from stdin/stderr.
6b2eb4e70ae3 * isatool browser now works with Cygwin;
wenzelm
parents: 25626
diff changeset
  1103
25855
3aa0d86b4398 * Rudimentary Isabelle plugin for jEdit;
wenzelm
parents: 25778
diff changeset
  1104
* Rudimentary Isabelle plugin for jEdit (see Isabelle/lib/jedit),
3aa0d86b4398 * Rudimentary Isabelle plugin for jEdit;
wenzelm
parents: 25778
diff changeset
  1105
based on Isabelle/JVM process wrapper (see Isabelle/lib/classes).
3aa0d86b4398 * Rudimentary Isabelle plugin for jEdit;
wenzelm
parents: 25778
diff changeset
  1106
27067
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1107
* Removed obsolete THIS_IS_ISABELLE_BUILD feature.  NB: the documented
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1108
way of changing the user's settings is via
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1109
ISABELLE_HOME_USER/etc/settings, which is a fully featured bash
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1110
script.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1111
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1112
* Multithreading.max_threads := 0 refers to the number of actual CPU
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1113
cores of the underlying machine, which is a good starting point for
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1114
optimal performance tuning.  The corresponding usedir option -M allows
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1115
"max" as an alias for "0".  WARNING: does not work on certain versions
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1116
of Mac OS (with Poly/ML 5.1).
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1117
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1118
* isabelle-process: non-ML sessions are run with "nice", to reduce the
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1119
adverse effect of Isabelle flooding interactive front-ends (notably
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1120
ProofGeneral / XEmacs).
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
  1121
25626
3000965b1fdf * isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents: 25609
diff changeset
  1122
25464
0ca80ce89001 moved new NEWS from Isabelle2007 to this Isabelle version'';
wenzelm
parents: 25459
diff changeset
  1123
25429
wenzelm
parents: 25409
diff changeset
  1124
New in Isabelle2007 (November 2007)
wenzelm
parents: 25409
diff changeset
  1125
-----------------------------------
17754
58a306d9f736 * Command 'find_theorems': support * wildcard in name: criterion.
wenzelm
parents: 17725
diff changeset
  1126
58a306d9f736 * Command 'find_theorems': support * wildcard in name: criterion.
wenzelm
parents: 17725
diff changeset
  1127
*** General ***
58a306d9f736 * Command 'find_theorems': support * wildcard in name: criterion.
wenzelm
parents: 17725
diff changeset
  1128
22826
0f4c501a691e explicit treatment of legacy_features;
wenzelm
parents: 22799
diff changeset
  1129
* More uniform information about legacy features, notably a
0f4c501a691e explicit treatment of legacy_features;
wenzelm
parents: 22799
diff changeset
  1130
warning/error of "Legacy feature: ...", depending on the state of the
23367
wenzelm
parents: 23300
diff changeset
  1131
tolerate_legacy_features flag (default true). FUTURE INCOMPATIBILITY:
wenzelm
parents: 23300
diff changeset
  1132
legacy features will disappear eventually.
22826
0f4c501a691e explicit treatment of legacy_features;
wenzelm
parents: 22799
diff changeset
  1133
17918
93e26302733e * Theory syntax: discontinued non-Isar format and old Isar headers;
wenzelm
parents: 17890
diff changeset
  1134
* Theory syntax: the header format ``theory A = B + C:'' has been
93e26302733e * Theory syntax: discontinued non-Isar format and old Isar headers;
wenzelm
parents: 17890
diff changeset
  1135
discontinued in favour of ``theory A imports B C begin''.  Use isatool
93e26302733e * Theory syntax: discontinued non-Isar format and old Isar headers;
wenzelm
parents: 17890
diff changeset
  1136
fixheaders to convert existing theory files.  INCOMPATIBILITY.
93e26302733e * Theory syntax: discontinued non-Isar format and old Isar headers;
wenzelm
parents: 17890
diff changeset
  1137
93e26302733e * Theory syntax: discontinued non-Isar format and old Isar headers;
wenzelm
parents: 17890
diff changeset
  1138
* Theory syntax: the old non-Isar theory file format has been
93e26302733e * Theory syntax: discontinued non-Isar format and old Isar headers;
wenzelm
parents: 17890
diff changeset
  1139
discontinued altogether.  Note that ML proof scripts may still be used
93e26302733e * Theory syntax: discontinued non-Isar format and old Isar headers;
wenzelm
parents: 17890
diff changeset
  1140
with Isar theories; migration is usually quite simple with the ML
93e26302733e * Theory syntax: discontinued non-Isar format and old Isar headers;
wenzelm
parents: 17890
diff changeset
  1141
function use_legacy_bindings.  INCOMPATIBILITY.
93e26302733e * Theory syntax: discontinued non-Isar format and old Isar headers;
wenzelm
parents: 17890
diff changeset
  1142
22871
wenzelm
parents: 22863
diff changeset
  1143
* Theory syntax: some popular names (e.g. 'class', 'declaration',
wenzelm
parents: 22863
diff changeset
  1144
'fun', 'help', 'if') are now keywords.  INCOMPATIBILITY, use double
wenzelm
parents: 22863
diff changeset
  1145
quotes.
19814
faa698d46686 * Theory syntax: some popular names (e.g. "class", "if") are now keywords.
wenzelm
parents: 19783
diff changeset
  1146
23888
babe337cce2d * Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents: 23881
diff changeset
  1147
* Theory loader: be more serious about observing the static theory
babe337cce2d * Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents: 23881
diff changeset
  1148
header specifications (including optional directories), but not the
24172
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
  1149
accidental file locations of previously successful loads.  The strict
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
  1150
update policy of former update_thy is now already performed by
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
  1151
use_thy, so the former has been removed; use_thys updates several
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
  1152
theories simultaneously, just as 'imports' within a theory header
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
  1153
specification, but without merging the results.  Potential
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
  1154
INCOMPATIBILITY: may need to refine theory headers and commands
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
  1155
ROOT.ML which depend on load order.
23888
babe337cce2d * Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents: 23881
diff changeset
  1156
babe337cce2d * Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents: 23881
diff changeset
  1157
* Theory loader: optional support for content-based file
babe337cce2d * Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents: 23881
diff changeset
  1158
identification, instead of the traditional scheme of full physical
23889
wenzelm
parents: 23888
diff changeset
  1159
path plus date stamp; configured by the ISABELLE_FILE_IDENT setting
23888
babe337cce2d * Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents: 23881
diff changeset
  1160
(cf. the system manual).  The new scheme allows to work with
babe337cce2d * Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents: 23881
diff changeset
  1161
non-finished theories in persistent session images, such that source
babe337cce2d * Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents: 23881
diff changeset
  1162
files may be moved later on without requiring reloads.
babe337cce2d * Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents: 23881
diff changeset
  1163
24187
8bdf5ca5871f * Theory loader: old-style ML proof scripts are considered a legacy feature;
wenzelm
parents: 24172
diff changeset
  1164
* Theory loader: old-style ML proof scripts being *attached* to a thy
8bdf5ca5871f * Theory loader: old-style ML proof scripts are considered a legacy feature;
wenzelm
parents: 24172
diff changeset
  1165
file (with the same base name as the theory) are considered a legacy
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1166
feature, which will disappear eventually. Even now, the theory loader
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1167
no longer maintains dependencies on such files.
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1168
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1169
* Syntax: the scope for resolving ambiguities via type-inference is
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1170
now limited to individual terms, instead of whole simultaneous
24234
4714e04fb8e9 * Syntax: scope for resolving ambiguities via type-inference is now limited to individual terms;
wenzelm
parents: 24213
diff changeset
  1171
specifications as before. This greatly reduces the complexity of the
4714e04fb8e9 * Syntax: scope for resolving ambiguities via type-inference is now limited to individual terms;
wenzelm
parents: 24213
diff changeset
  1172
syntax module and improves flexibility by separating parsing and
4714e04fb8e9 * Syntax: scope for resolving ambiguities via type-inference is now limited to individual terms;
wenzelm
parents: 24213
diff changeset
  1173
type-checking. INCOMPATIBILITY: additional type-constraints (explicit
4714e04fb8e9 * Syntax: scope for resolving ambiguities via type-inference is now limited to individual terms;
wenzelm
parents: 24213
diff changeset
  1174
'fixes' etc.) are required in rare situations.
4714e04fb8e9 * Syntax: scope for resolving ambiguities via type-inference is now limited to individual terms;
wenzelm
parents: 24213
diff changeset
  1175
25034
7f2e1a8e181b more on authentic syntax;
wenzelm
parents: 25033
diff changeset
  1176
* Syntax: constants introduced by new-style packages ('definition',
7f2e1a8e181b more on authentic syntax;
wenzelm
parents: 25033
diff changeset
  1177
'abbreviation' etc.) are passed through the syntax module in
7f2e1a8e181b more on authentic syntax;
wenzelm
parents: 25033
diff changeset
  1178
``authentic mode''. This means that associated mixfix annotations
7f2e1a8e181b more on authentic syntax;
wenzelm
parents: 25033
diff changeset
  1179
really stick to such constants, independently of potential name space
7f2e1a8e181b more on authentic syntax;
wenzelm
parents: 25033
diff changeset
  1180
ambiguities introduced later on. INCOMPATIBILITY: constants in parse
7f2e1a8e181b more on authentic syntax;
wenzelm
parents: 25033
diff changeset
  1181
trees are represented slightly differently, may need to adapt syntax
7f2e1a8e181b more on authentic syntax;
wenzelm
parents: 25033
diff changeset
  1182
translations accordingly. Use CONST marker in 'translations' and
7f2e1a8e181b more on authentic syntax;
wenzelm
parents: 25033
diff changeset
  1183
@{const_syntax} antiquotation in 'parse_translation' etc.
7f2e1a8e181b more on authentic syntax;
wenzelm
parents: 25033
diff changeset
  1184
17981
2602be0d99ae * Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents: 17918
diff changeset
  1185
* Legacy goal package: reduced interface to the bare minimum required
2602be0d99ae * Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents: 17918
diff changeset
  1186
to keep existing proof scripts running.  Most other user-level
2602be0d99ae * Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents: 17918
diff changeset
  1187
functions are now part of the OldGoals structure, which is *not* open
2602be0d99ae * Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents: 17918
diff changeset
  1188
by default (consider isatool expandshort before open OldGoals).
2602be0d99ae * Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents: 17918
diff changeset
  1189
Removed top_sg, prin, printyp, pprint_term/typ altogether, because
2602be0d99ae * Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents: 17918
diff changeset
  1190
these tend to cause confusion about the actual goal (!) context being
2602be0d99ae * Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents: 17918
diff changeset
  1191
used here, which is not necessarily the same as the_context().
17918
93e26302733e * Theory syntax: discontinued non-Isar format and old Isar headers;
wenzelm
parents: 17890
diff changeset
  1192
23379
d0e3f790bd73 updated 'find_theorems' -- moved ProofGeneral specifics to ProofGeneral/CHANGES;
wenzelm
parents: 23377
diff changeset
  1193
* Command 'find_theorems': supports "*" wild-card in "name:"
d0e3f790bd73 updated 'find_theorems' -- moved ProofGeneral specifics to ProofGeneral/CHANGES;
wenzelm
parents: 23377
diff changeset
  1194
criterion; "with_dups" option.  Certain ProofGeneral versions might
d0e3f790bd73 updated 'find_theorems' -- moved ProofGeneral specifics to ProofGeneral/CHANGES;
wenzelm
parents: 23377
diff changeset
  1195
support a specific search form (see ProofGeneral/CHANGES).
22965
b81bbe298406 ProofGeneral: Find Theorems search form
webertj
parents: 22921
diff changeset
  1196
20370
217aada4f795 * ProofContext.prems_limit is now -1 by default;
wenzelm
parents: 20348
diff changeset
  1197
* The ``prems limit'' option (cf. ProofContext.prems_limit) is now -1
217aada4f795 * ProofContext.prems_limit is now -1 by default;
wenzelm
parents: 20348
diff changeset
  1198
by default, which means that "prems" (and also "fixed variables") are
217aada4f795 * ProofContext.prems_limit is now -1 by default;
wenzelm
parents: 20348
diff changeset
  1199
suppressed from proof state output.  Note that the ProofGeneral
217aada4f795 * ProofContext.prems_limit is now -1 by default;
wenzelm
parents: 20348
diff changeset
  1200
settings mechanism allows to change and save options persistently, but
217aada4f795 * ProofContext.prems_limit is now -1 by default;
wenzelm
parents: 20348
diff changeset
  1201
older versions of Isabelle will fail to start up if a negative prems
217aada4f795 * ProofContext.prems_limit is now -1 by default;
wenzelm
parents: 20348
diff changeset
  1202
limit is imposed.
217aada4f795 * ProofContext.prems_limit is now -1 by default;
wenzelm
parents: 20348
diff changeset
  1203
21308
73883a528b26 * Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents: 21265
diff changeset
  1204
* Local theory targets may be specified by non-nested blocks of
73883a528b26 * Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents: 21265
diff changeset
  1205
``context/locale/class ... begin'' followed by ``end''.  The body may
73883a528b26 * Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents: 21265
diff changeset
  1206
contain definitions, theorems etc., including any derived mechanism
73883a528b26 * Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents: 21265
diff changeset
  1207
that has been implemented on top of these primitives.  This concept
73883a528b26 * Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents: 21265
diff changeset
  1208
generalizes the existing ``theorem (in ...)'' towards more versatility
73883a528b26 * Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents: 21265
diff changeset
  1209
and scalability.
73883a528b26 * Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents: 21265
diff changeset
  1210
21960
0574f192b78a * Proof General: proper undo of final 'end'; discontinued Isabelle/classic;
wenzelm
parents: 21896
diff changeset
  1211
* Proof General interface: proper undo of final 'end' command;
0574f192b78a * Proof General: proper undo of final 'end'; discontinued Isabelle/classic;
wenzelm
parents: 21896
diff changeset
  1212
discontinued Isabelle/classic mode (ML proof scripts).
0574f192b78a * Proof General: proper undo of final 'end'; discontinued Isabelle/classic;
wenzelm
parents: 21896
diff changeset
  1213
17754
58a306d9f736 * Command 'find_theorems': support * wildcard in name: criterion.
wenzelm
parents: 17725
diff changeset
  1214
17865
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
  1215
*** Document preparation ***
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
  1216
21717
410ca6910f6f added antiquotation abbrev;
wenzelm
parents: 21647
diff changeset
  1217
* Added antiquotation @{theory name} which prints the given name,
410ca6910f6f added antiquotation abbrev;
wenzelm
parents: 21647
diff changeset
  1218
after checking that it refers to a valid ancestor theory in the
410ca6910f6f added antiquotation abbrev;
wenzelm
parents: 21647
diff changeset
  1219
current context.
21339
b59f7cca0b0c added antiquotation theory
haftmann
parents: 21320
diff changeset
  1220
17869
wenzelm
parents: 17865
diff changeset
  1221
* Added antiquotations @{ML_type text} and @{ML_struct text} which
wenzelm
parents: 17865
diff changeset
  1222
check the given source text as ML type/structure, printing verbatim.
17865
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
  1223
21717
410ca6910f6f added antiquotation abbrev;
wenzelm
parents: 21647
diff changeset
  1224
* Added antiquotation @{abbrev "c args"} which prints the abbreviation
410ca6910f6f added antiquotation abbrev;
wenzelm
parents: 21647
diff changeset
  1225
"c args == rhs" given in the current context.  (Any number of
21735
0c65e072f4be added print_abbrevs;
wenzelm
parents: 21717
diff changeset
  1226
arguments may be given on the LHS.)
21717
410ca6910f6f added antiquotation abbrev;
wenzelm
parents: 21647
diff changeset
  1227
410ca6910f6f added antiquotation abbrev;
wenzelm
parents: 21647
diff changeset
  1228
17779
407bea05c2da added dummy variable binding;
wenzelm
parents: 17754
diff changeset
  1229
*** Pure ***
407bea05c2da added dummy variable binding;
wenzelm
parents: 17754
diff changeset
  1230
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1231
* The 'class' package offers a combination of axclass and locale to
25129
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
  1232
achieve Haskell-like type classes in Isabelle.  Definitions and
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
  1233
theorems within a class context produce both relative results (with
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
  1234
implicit parameters according to the locale context), and polymorphic
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
  1235
constants with qualified polymorphism (according to the class
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
  1236
context).  Within the body context of a 'class' target, a separate
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
  1237
syntax layer ("user space type system") takes care of converting
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
  1238
between global polymorphic consts and internal locale representation.
25177
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
  1239
See src/HOL/ex/Classpackage.thy for examples (as well as main HOL).
25184
haftmann
parents: 25177
diff changeset
  1240
"isatool doc classes" provides a tutorial.
20807
wenzelm
parents: 20716
diff changeset
  1241
25199
haftmann
parents: 25198
diff changeset
  1242
* Generic code generator framework allows to generate executable
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1243
code for ML and Haskell (including Isabelle classes).  A short usage
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1244
sketch:
20188
8b22026445af added notes on class_package.ML and codegen_package.ML
haftmann
parents: 20169
diff changeset
  1245
8b22026445af added notes on class_package.ML and codegen_package.ML
haftmann
parents: 20169
diff changeset
  1246
    internal compilation:
25199
haftmann
parents: 25198
diff changeset
  1247
        export_code <list of constants (term syntax)> in SML
20453
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
  1248
    writing SML code to a file:
25199
haftmann
parents: 25198
diff changeset
  1249
        export_code <list of constants (term syntax)> in SML <filename>
22735
cf627add250a code generator changes
haftmann
parents: 22450
diff changeset
  1250
    writing OCaml code to a file:
25199
haftmann
parents: 25198
diff changeset
  1251
        export_code <list of constants (term syntax)> in OCaml <filename>
20188
8b22026445af added notes on class_package.ML and codegen_package.ML
haftmann
parents: 20169
diff changeset
  1252
    writing Haskell code to a bunch of files:
25199
haftmann
parents: 25198
diff changeset
  1253
        export_code <list of constants (term syntax)> in Haskell <filename>
haftmann
parents: 25198
diff changeset
  1254
haftmann
parents: 25198
diff changeset
  1255
    evaluating closed propositions to True/False using code generation:
25184
haftmann
parents: 25177
diff changeset
  1256
        method ``eval''
haftmann
parents: 25177
diff changeset
  1257
haftmann
parents: 25177
diff changeset
  1258
Reasonable default setup of framework in HOL.
20453
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
  1259
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
  1260
Theorem attributs for selecting and transforming function equations theorems:
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
  1261
22845
5f9138bcb3d7 changed code generator invocation syntax
haftmann
parents: 22826
diff changeset
  1262
    [code fun]:        select a theorem as function equation for a specific constant
5f9138bcb3d7 changed code generator invocation syntax
haftmann
parents: 22826
diff changeset
  1263
    [code fun del]:    deselect a theorem as function equation for a specific constant
5f9138bcb3d7 changed code generator invocation syntax
haftmann
parents: 22826
diff changeset
  1264
    [code inline]:     select an equation theorem for unfolding (inlining) in place
5f9138bcb3d7 changed code generator invocation syntax
haftmann
parents: 22826
diff changeset
  1265
    [code inline del]: deselect an equation theorem for unfolding (inlining) in place
20453
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
  1266
22735
cf627add250a code generator changes
haftmann
parents: 22450
diff changeset
  1267
User-defined serializations (target in {SML, OCaml, Haskell}):
20453
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
  1268
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
  1269
    code_const <and-list of constants (term syntax)>
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
  1270
      {(target) <and-list of const target syntax>}+
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
  1271
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
  1272
    code_type <and-list of type constructors>
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
  1273
      {(target) <and-list of type target syntax>}+
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
  1274
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
  1275
    code_instance <and-list of instances>
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
  1276
      {(target)}+
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
  1277
        where instance ::= <type constructor> :: <class>
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
  1278
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
  1279
    code_class <and_list of classes>
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
  1280
      {(target) <and-list of class target syntax>}+
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
  1281
        where class target syntax ::= <class name> {where {<classop> == <target syntax>}+}?
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
  1282
25199
haftmann
parents: 25198
diff changeset
  1283
code_instance and code_class only are effective to target Haskell.
22735
cf627add250a code generator changes
haftmann
parents: 22450
diff changeset
  1284
25177
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
  1285
For example usage see src/HOL/ex/Codegenerator.thy and
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
  1286
src/HOL/ex/Codegenerator_Pretty.thy.  A separate tutorial on code
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1287
generation from Isabelle/HOL theories is available via "isatool doc
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1288
codegen".
20188
8b22026445af added notes on class_package.ML and codegen_package.ML
haftmann
parents: 20169
diff changeset
  1289
25129
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
  1290
* Code generator: consts in 'consts_code' Isar commands are now
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
  1291
referred to by usual term syntax (including optional type
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
  1292
annotations).
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
  1293
19254
efaf5d47049e Pure: no_translations;
wenzelm
parents: 19252
diff changeset
  1294
* Command 'no_translations' removes translation rules from theory
efaf5d47049e Pure: no_translations;
wenzelm
parents: 19252
diff changeset
  1295
syntax.
efaf5d47049e Pure: no_translations;
wenzelm
parents: 19252
diff changeset
  1296
19625
285771cec083 * Pure: overloaded definitions are now actually checked for acyclic dependencies;
wenzelm
parents: 19587
diff changeset
  1297
* Overloaded definitions are now actually checked for acyclic
19714
wenzelm
parents: 19711
diff changeset
  1298
dependencies.  The overloading scheme is slightly more general than
wenzelm
parents: 19711
diff changeset
  1299
that of Haskell98, although Isabelle does not demand an exact
wenzelm
parents: 19711
diff changeset
  1300
correspondence to type class and instance declarations.
wenzelm
parents: 19711
diff changeset
  1301
INCOMPATIBILITY, use ``defs (unchecked overloaded)'' to admit more
wenzelm
parents: 19711
diff changeset
  1302
exotic versions of overloading -- at the discretion of the user!
19711
2401b1a3087f Pure: update on overloaded defs;
wenzelm
parents: 19682
diff changeset
  1303
2401b1a3087f Pure: update on overloaded defs;
wenzelm
parents: 19682
diff changeset
  1304
Polymorphic constants are represented via type arguments, i.e. the
2401b1a3087f Pure: update on overloaded defs;
wenzelm
parents: 19682
diff changeset
  1305
instantiation that matches an instance against the most general
2401b1a3087f Pure: update on overloaded defs;
wenzelm
parents: 19682
diff changeset
  1306
declaration given in the signature.  For example, with the declaration
2401b1a3087f Pure: update on overloaded defs;
wenzelm
parents: 19682
diff changeset
  1307
c :: 'a => 'a => 'a, an instance c :: nat => nat => nat is represented
2401b1a3087f Pure: update on overloaded defs;
wenzelm
parents: 19682
diff changeset
  1308
as c(nat).  Overloading is essentially simultaneous structural
2401b1a3087f Pure: update on overloaded defs;
wenzelm
parents: 19682
diff changeset
  1309
recursion over such type arguments.  Incomplete specification patterns
19714
wenzelm
parents: 19711
diff changeset
  1310
impose global constraints on all occurrences, e.g. c('a * 'a) on the
19715
wenzelm
parents: 19714
diff changeset
  1311
LHS means that more general c('a * 'b) will be disallowed on any RHS.
19714
wenzelm
parents: 19711
diff changeset
  1312
Command 'print_theory' outputs the normalized system of recursive
wenzelm
parents: 19711
diff changeset
  1313
equations, see section "definitions".
19625
285771cec083 * Pure: overloaded definitions are now actually checked for acyclic dependencies;
wenzelm
parents: 19587
diff changeset
  1314
24086
21900a460ba4 * Configuration options;
wenzelm
parents: 24032
diff changeset
  1315
* Configuration options are maintained within the theory or proof
21900a460ba4 * Configuration options;
wenzelm
parents: 24032
diff changeset
  1316
context (with name and type bool/int/string), providing a very simple
21900a460ba4 * Configuration options;
wenzelm
parents: 24032
diff changeset
  1317
interface to a poor-man's version of general context data.  Tools may
24110
4ab3084e311c tuned config options: eliminated separate attribute "option";
wenzelm
parents: 24086
diff changeset
  1318
declare options in ML (e.g. using Attrib.config_int) and then refer to
4ab3084e311c tuned config options: eliminated separate attribute "option";
wenzelm
parents: 24086
diff changeset
  1319
these values using Config.get etc.  Users may change options via an
4ab3084e311c tuned config options: eliminated separate attribute "option";
wenzelm
parents: 24086
diff changeset
  1320
associated attribute of the same name.  This form of context
4ab3084e311c tuned config options: eliminated separate attribute "option";
wenzelm
parents: 24086
diff changeset
  1321
declaration works particularly well with commands 'declare' or
4ab3084e311c tuned config options: eliminated separate attribute "option";
wenzelm
parents: 24086
diff changeset
  1322
'using', for example ``declare [[foo = 42]]''.  Thus it has become
4ab3084e311c tuned config options: eliminated separate attribute "option";
wenzelm
parents: 24086
diff changeset
  1323
very easy to avoid global references, which would not observe Isar
4ab3084e311c tuned config options: eliminated separate attribute "option";
wenzelm
parents: 24086
diff changeset
  1324
toplevel undo/redo and fail to work with multithreading.
24086
21900a460ba4 * Configuration options;
wenzelm
parents: 24032
diff changeset
  1325
24172
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
  1326
Various global ML references of Pure and HOL have been turned into
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
  1327
configuration options:
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
  1328
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
  1329
  Unify.search_bound		unify_search_bound
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
  1330
  Unify.trace_bound		unify_trace_bound
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
  1331
  Unify.trace_simp		unify_trace_simp
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
  1332
  Unify.trace_types		unify_trace_types
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
  1333
  Simplifier.simp_depth_limit	simp_depth_limit
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
  1334
  Blast.depth_limit		blast_depth_limit
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
  1335
  DatatypeProp.dtK		datatype_distinctness_limit
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
  1336
  fast_arith_neq_limit  	fast_arith_neq_limit
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
  1337
  fast_arith_split_limit	fast_arith_split_limit
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
  1338
24086
21900a460ba4 * Configuration options;
wenzelm
parents: 24032
diff changeset
  1339
* Named collections of theorems may be easily installed as context
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1340
data using the functor NamedThmsFun (see also
24086
21900a460ba4 * Configuration options;
wenzelm
parents: 24032
diff changeset
  1341
src/Pure/Tools/named_thms.ML).  The user may add or delete facts via
24110
4ab3084e311c tuned config options: eliminated separate attribute "option";
wenzelm
parents: 24086
diff changeset
  1342
attributes; there is also a toplevel print command.  This facility is
4ab3084e311c tuned config options: eliminated separate attribute "option";
wenzelm
parents: 24086
diff changeset
  1343
just a common case of general context data, which is the preferred way
4ab3084e311c tuned config options: eliminated separate attribute "option";
wenzelm
parents: 24086
diff changeset
  1344
for anything more complex than just a list of facts in canonical
4ab3084e311c tuned config options: eliminated separate attribute "option";
wenzelm
parents: 24086
diff changeset
  1345
order.
24086
21900a460ba4 * Configuration options;
wenzelm
parents: 24032
diff changeset
  1346
24032
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
  1347
* Isar: command 'declaration' augments a local theory by generic
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
  1348
declaration functions written in ML.  This enables arbitrary content
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
  1349
being added to the context, depending on a morphism that tells the
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
  1350
difference of the original declaration context wrt. the application
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
  1351
context encountered later on.
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
  1352
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
  1353
* Isar: proper interfaces for simplification procedures.  Command
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
  1354
'simproc_setup' declares named simprocs (with match patterns, and body
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
  1355
text in ML).  Attribute "simproc" adds/deletes simprocs in the current
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
  1356
context.  ML antiquotation @{simproc name} retrieves named simprocs.
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
  1357
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
  1358
* Isar: an extra pair of brackets around attribute declarations
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
  1359
abbreviates a theorem reference involving an internal dummy fact,
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
  1360
which will be ignored later --- only the effect of the attribute on
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
  1361
the background context will persist.  This form of in-place
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
  1362
declarations is particularly useful with commands like 'declare' and
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
  1363
'using', for example ``have A using [[simproc a]] by simp''.
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
  1364
23369
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
  1365
* Isar: method "assumption" (and implicit closing of subproofs) now
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
  1366
takes simple non-atomic goal assumptions into account: after applying
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
  1367
an assumption as a rule the resulting subgoals are solved by atomic
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
  1368
assumption steps.  This is particularly useful to finish 'obtain'
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
  1369
goals, such as "!!x. (!!x. P x ==> thesis) ==> P x ==> thesis",
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
  1370
without referring to the original premise "!!x. P x ==> thesis" in the
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
  1371
Isar proof context.  POTENTIAL INCOMPATIBILITY: method "assumption" is
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
  1372
more permissive.
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
  1373
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
  1374
* Isar: implicit use of prems from the Isar proof context is
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
  1375
considered a legacy feature.  Common applications like ``have A .''
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
  1376
may be replaced by ``have A by fact'' or ``note `A`''.  In general,
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
  1377
referencing facts explicitly here improves readability and
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
  1378
maintainability of proof texts.
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
  1379
17865
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
  1380
* Isar: improper proof element 'guess' is like 'obtain', but derives
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
  1381
the obtained context from the course of reasoning!  For example:
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
  1382
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
  1383
  assume "EX x y. A x & B y"   -- "any previous fact"
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
  1384
  then guess x and y by clarify
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
  1385
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
  1386
This technique is potentially adventurous, depending on the facts and
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
  1387
proof tools being involved here.
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
  1388
18020
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
  1389
* Isar: known facts from the proof context may be specified as literal
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
  1390
propositions, using ASCII back-quote syntax.  This works wherever
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
  1391
named facts used to be allowed so far, in proof commands, proof