NEWS
author wenzelm
Thu, 20 Dec 2007 21:14:28 +0100
changeset 25737 84c92fc48e36
parent 25726 9728f319ffc6
child 25772 940429bb0743
permissions -rw-r--r--
``print mode'' is now a thread-local value derived from a global template;
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Isabelle NEWS -- history user-relevant changes
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==============================================
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ed941505cab7 Isabelle NEWS -- history of user-visible changes;
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New in this Isabelle version
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----------------------------
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*** General ***
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* Syntax: symbol \<chi> is now considered a letter.  Potential
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INCOMPATIBILITY in identifier syntax etc.
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* Outer syntax: string tokens may contain arbitrary character codes
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specified via 3 decimal digits (as in SML).  E.g. "foo\095bar" for
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"foo_bar".
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*** Pure ***
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* Instantiation target allows for simultaneous specification of class instance
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operations together with an instantiation proof.  Type check phase allows to
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refer to class operations uniformly.  See HOL/Complex/Complex.thy for an Isar
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example and HOL/Library/Eval.thy for an ML example.
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Superseedes some immature attempts.
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*** HOL ***
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* New primrec package.  Specification syntax conforms in style to
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definition/function/....  No separate induction rule is provided.
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The "primrec" command distinguishes old-style and new-style specifications
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by syntax.  The former primrec package is now named OldPrimrecPackage.
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When adjusting theories, beware: constants stemming for new-style
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primrec specifications have authentic syntax.
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* Library/Multiset: {#a, b, c#} abbreviates {#a#} + {#b#} + {#c#}.
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* Constants "card", "internal_split", "option_map" now with authentic
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syntax.
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* Definitions subset_def, psubset_def, set_diff_def, Compl_def,
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le_bool_def, less_bool_def, le_fun_def, less_fun_def, inf_bool_def,
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sup_bool_def, Inf_bool_def, Sup_bool_def, inf_fun_def, sup_fun_def,
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Inf_fun_def, Sup_fun_def, inf_set_def, sup_set_def, Inf_set_def,
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Sup_set_def, le_def, less_def, option_map_def now with object
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equality.
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* New method "induction_scheme" derives user-specified induction rules
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from wellfounded induction and completeness of patterns. This factors
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out some operations that are done internally by the function package
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and makes them available separately. See "HOL/ex/Induction_Scheme.thy"
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for examples,
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* Records. Removed K_record, and replaced it by pure lambda term
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%x. c. The simplifier setup is now more robust against eta expansion.
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INCOMPATIBILITY: in cases explicitly referring to K_record.
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* Metis prover is now an order of magnitude faster, and also works
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with multithreading.
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*** ML ***
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* The ``print mode'' is now a thread-local value derived from a global
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template (the former print_mode reference), thus access becomes
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non-critical.  The global print_mode reference is for session
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management only; user-code should use print_mode_value,
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print_mode_active, PrintMode.setmp etc.  INCOMPATIBILITY.
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*** System ***
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* isatool tty runs Isabelle process with plain tty interaction;
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optional line editor may be specified via ISABELLE_LINE_EDITOR
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setting, the default settings attempt to locate "ledit" and "rlwrap".
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* isatool browser now works with Cygwin as well, using general
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"javapath" function defined in Isabelle process environment.
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* isabelle-process: non-ML sessions are run with "nice", to prevent
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Isabelle from flooding interactive front-ends (notably ProofGeneral /
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XEmacs).
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* JVM class isabelle.IsabelleProcess (located in Isabelle/lib/classes)
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provides general wrapper for managing an Isabelle process in a robust
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fashion, with ``cooked'' output from stdin/stderr.
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New in Isabelle2007 (November 2007)
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-----------------------------------
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58a306d9f736 * Command 'find_theorems': support * wildcard in name: criterion.
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*** General ***
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* More uniform information about legacy features, notably a
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warning/error of "Legacy feature: ...", depending on the state of the
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tolerate_legacy_features flag (default true). FUTURE INCOMPATIBILITY:
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legacy features will disappear eventually.
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* Theory syntax: the header format ``theory A = B + C:'' has been
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discontinued in favour of ``theory A imports B C begin''.  Use isatool
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fixheaders to convert existing theory files.  INCOMPATIBILITY.
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* Theory syntax: the old non-Isar theory file format has been
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discontinued altogether.  Note that ML proof scripts may still be used
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with Isar theories; migration is usually quite simple with the ML
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function use_legacy_bindings.  INCOMPATIBILITY.
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22871
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* Theory syntax: some popular names (e.g. 'class', 'declaration',
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'fun', 'help', 'if') are now keywords.  INCOMPATIBILITY, use double
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quotes.
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* Theory loader: be more serious about observing the static theory
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header specifications (including optional directories), but not the
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accidental file locations of previously successful loads.  The strict
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update policy of former update_thy is now already performed by
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use_thy, so the former has been removed; use_thys updates several
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theories simultaneously, just as 'imports' within a theory header
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specification, but without merging the results.  Potential
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INCOMPATIBILITY: may need to refine theory headers and commands
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ROOT.ML which depend on load order.
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* Theory loader: optional support for content-based file
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identification, instead of the traditional scheme of full physical
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path plus date stamp; configured by the ISABELLE_FILE_IDENT setting
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(cf. the system manual).  The new scheme allows to work with
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non-finished theories in persistent session images, such that source
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files may be moved later on without requiring reloads.
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* Theory loader: old-style ML proof scripts being *attached* to a thy
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file (with the same base name as the theory) are considered a legacy
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feature, which will disappear eventually. Even now, the theory loader
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no longer maintains dependencies on such files.
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* Syntax: the scope for resolving ambiguities via type-inference is
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now limited to individual terms, instead of whole simultaneous
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specifications as before. This greatly reduces the complexity of the
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syntax module and improves flexibility by separating parsing and
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type-checking. INCOMPATIBILITY: additional type-constraints (explicit
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'fixes' etc.) are required in rare situations.
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* Syntax: constants introduced by new-style packages ('definition',
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'abbreviation' etc.) are passed through the syntax module in
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``authentic mode''. This means that associated mixfix annotations
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really stick to such constants, independently of potential name space
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ambiguities introduced later on. INCOMPATIBILITY: constants in parse
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trees are represented slightly differently, may need to adapt syntax
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translations accordingly. Use CONST marker in 'translations' and
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@{const_syntax} antiquotation in 'parse_translation' etc.
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* Legacy goal package: reduced interface to the bare minimum required
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to keep existing proof scripts running.  Most other user-level
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functions are now part of the OldGoals structure, which is *not* open
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by default (consider isatool expandshort before open OldGoals).
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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.
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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.
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used here, which is not necessarily the same as the_context().
17918
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* Command 'find_theorems': supports "*" wild-card in "name:"
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criterion; "with_dups" option.  Certain ProofGeneral versions might
d0e3f790bd73 updated 'find_theorems' -- moved ProofGeneral specifics to ProofGeneral/CHANGES;
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support a specific search form (see ProofGeneral/CHANGES).
22965
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20370
217aada4f795 * ProofContext.prems_limit is now -1 by default;
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* The ``prems limit'' option (cf. ProofContext.prems_limit) is now -1
217aada4f795 * ProofContext.prems_limit is now -1 by default;
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by default, which means that "prems" (and also "fixed variables") are
217aada4f795 * ProofContext.prems_limit is now -1 by default;
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suppressed from proof state output.  Note that the ProofGeneral
217aada4f795 * ProofContext.prems_limit is now -1 by default;
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settings mechanism allows to change and save options persistently, but
217aada4f795 * ProofContext.prems_limit is now -1 by default;
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   166
older versions of Isabelle will fail to start up if a negative prems
217aada4f795 * ProofContext.prems_limit is now -1 by default;
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limit is imposed.
217aada4f795 * ProofContext.prems_limit is now -1 by default;
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21308
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* Local theory targets may be specified by non-nested blocks of
73883a528b26 * Local theory targets ``context/locale/class ... begin'' followed by ``end''.
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``context/locale/class ... begin'' followed by ``end''.  The body may
73883a528b26 * Local theory targets ``context/locale/class ... begin'' followed by ``end''.
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contain definitions, theorems etc., including any derived mechanism
73883a528b26 * Local theory targets ``context/locale/class ... begin'' followed by ``end''.
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that has been implemented on top of these primitives.  This concept
73883a528b26 * Local theory targets ``context/locale/class ... begin'' followed by ``end''.
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generalizes the existing ``theorem (in ...)'' towards more versatility
73883a528b26 * Local theory targets ``context/locale/class ... begin'' followed by ``end''.
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and scalability.
73883a528b26 * Local theory targets ``context/locale/class ... begin'' followed by ``end''.
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21960
0574f192b78a * Proof General: proper undo of final 'end'; discontinued Isabelle/classic;
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* Proof General interface: proper undo of final 'end' command;
0574f192b78a * Proof General: proper undo of final 'end'; discontinued Isabelle/classic;
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discontinued Isabelle/classic mode (ML proof scripts).
0574f192b78a * Proof General: proper undo of final 'end'; discontinued Isabelle/classic;
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58a306d9f736 * Command 'find_theorems': support * wildcard in name: criterion.
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5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
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*** Document preparation ***
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
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* Added antiquotation @{theory name} which prints the given name,
410ca6910f6f added antiquotation abbrev;
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after checking that it refers to a valid ancestor theory in the
410ca6910f6f added antiquotation abbrev;
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current context.
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17869
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* Added antiquotations @{ML_type text} and @{ML_struct text} which
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check the given source text as ML type/structure, printing verbatim.
17865
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
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* Added antiquotation @{abbrev "c args"} which prints the abbreviation
410ca6910f6f added antiquotation abbrev;
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"c args == rhs" given in the current context.  (Any number of
21735
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arguments may be given on the LHS.)
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410ca6910f6f added antiquotation abbrev;
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17779
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*** Pure ***
407bea05c2da added dummy variable binding;
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* The 'class' package offers a combination of axclass and locale to
25129
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achieve Haskell-like type classes in Isabelle.  Definitions and
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theorems within a class context produce both relative results (with
de54445dc82c misc tuning;
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implicit parameters according to the locale context), and polymorphic
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constants with qualified polymorphism (according to the class
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context).  Within the body context of a 'class' target, a separate
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syntax layer ("user space type system") takes care of converting
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between global polymorphic consts and internal locale representation.
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See src/HOL/ex/Classpackage.thy for examples (as well as main HOL).
25184
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"isatool doc classes" provides a tutorial.
20807
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25199
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* Generic code generator framework allows to generate executable
24800
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code for ML and Haskell (including Isabelle classes).  A short usage
3ab455b3d03b misc tuning and update;
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sketch:
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8b22026445af added notes on class_package.ML and codegen_package.ML
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    internal compilation:
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        export_code <list of constants (term syntax)> in SML
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    writing SML code to a file:
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        export_code <list of constants (term syntax)> in SML <filename>
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    writing OCaml code to a file:
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        export_code <list of constants (term syntax)> in OCaml <filename>
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    writing Haskell code to a bunch of files:
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        export_code <list of constants (term syntax)> in Haskell <filename>
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   219
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    evaluating closed propositions to True/False using code generation:
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        method ``eval''
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Reasonable default setup of framework in HOL.
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855f07fabd76 final syntax for some Isar code generator keywords
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Theorem attributs for selecting and transforming function equations theorems:
855f07fabd76 final syntax for some Isar code generator keywords
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    [code fun]:        select a theorem as function equation for a specific constant
5f9138bcb3d7 changed code generator invocation syntax
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    [code fun del]:    deselect a theorem as function equation for a specific constant
5f9138bcb3d7 changed code generator invocation syntax
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    [code inline]:     select an equation theorem for unfolding (inlining) in place
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    [code inline del]: deselect an equation theorem for unfolding (inlining) in place
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User-defined serializations (target in {SML, OCaml, Haskell}):
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    code_const <and-list of constants (term syntax)>
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      {(target) <and-list of const target syntax>}+
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    code_type <and-list of type constructors>
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      {(target) <and-list of type target syntax>}+
855f07fabd76 final syntax for some Isar code generator keywords
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855f07fabd76 final syntax for some Isar code generator keywords
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    code_instance <and-list of instances>
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      {(target)}+
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        where instance ::= <type constructor> :: <class>
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   243
855f07fabd76 final syntax for some Isar code generator keywords
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    code_class <and_list of classes>
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      {(target) <and-list of class target syntax>}+
855f07fabd76 final syntax for some Isar code generator keywords
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   246
        where class target syntax ::= <class name> {where {<classop> == <target syntax>}+}?
855f07fabd76 final syntax for some Isar code generator keywords
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   247
25199
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   248
code_instance and code_class only are effective to target Haskell.
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   249
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For example usage see src/HOL/ex/Codegenerator.thy and
f9ced25685e0 tuned file names etc.;
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src/HOL/ex/Codegenerator_Pretty.thy.  A separate tutorial on code
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   252
generation from Isabelle/HOL theories is available via "isatool doc
3ab455b3d03b misc tuning and update;
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   253
codegen".
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* Code generator: consts in 'consts_code' Isar commands are now
de54445dc82c misc tuning;
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   256
referred to by usual term syntax (including optional type
de54445dc82c misc tuning;
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   257
annotations).
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   258
19254
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   259
* Command 'no_translations' removes translation rules from theory
efaf5d47049e Pure: no_translations;
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syntax.
efaf5d47049e Pure: no_translations;
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   261
19625
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   262
* Overloaded definitions are now actually checked for acyclic
19714
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   263
dependencies.  The overloading scheme is slightly more general than
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   264
that of Haskell98, although Isabelle does not demand an exact
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   265
correspondence to type class and instance declarations.
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INCOMPATIBILITY, use ``defs (unchecked overloaded)'' to admit more
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exotic versions of overloading -- at the discretion of the user!
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2401b1a3087f Pure: update on overloaded defs;
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Polymorphic constants are represented via type arguments, i.e. the
2401b1a3087f Pure: update on overloaded defs;
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instantiation that matches an instance against the most general
2401b1a3087f Pure: update on overloaded defs;
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declaration given in the signature.  For example, with the declaration
2401b1a3087f Pure: update on overloaded defs;
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c :: 'a => 'a => 'a, an instance c :: nat => nat => nat is represented
2401b1a3087f Pure: update on overloaded defs;
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as c(nat).  Overloading is essentially simultaneous structural
2401b1a3087f Pure: update on overloaded defs;
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recursion over such type arguments.  Incomplete specification patterns
19714
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impose global constraints on all occurrences, e.g. c('a * 'a) on the
19715
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LHS means that more general c('a * 'b) will be disallowed on any RHS.
19714
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Command 'print_theory' outputs the normalized system of recursive
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   278
equations, see section "definitions".
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24086
21900a460ba4 * Configuration options;
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* Configuration options are maintained within the theory or proof
21900a460ba4 * Configuration options;
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context (with name and type bool/int/string), providing a very simple
21900a460ba4 * Configuration options;
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interface to a poor-man's version of general context data.  Tools may
24110
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declare options in ML (e.g. using Attrib.config_int) and then refer to
4ab3084e311c tuned config options: eliminated separate attribute "option";
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   284
these values using Config.get etc.  Users may change options via an
4ab3084e311c tuned config options: eliminated separate attribute "option";
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   285
associated attribute of the same name.  This form of context
4ab3084e311c tuned config options: eliminated separate attribute "option";
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declaration works particularly well with commands 'declare' or
4ab3084e311c tuned config options: eliminated separate attribute "option";
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   287
'using', for example ``declare [[foo = 42]]''.  Thus it has become
4ab3084e311c tuned config options: eliminated separate attribute "option";
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   288
very easy to avoid global references, which would not observe Isar
4ab3084e311c tuned config options: eliminated separate attribute "option";
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   289
toplevel undo/redo and fail to work with multithreading.
24086
21900a460ba4 * Configuration options;
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   290
24172
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   291
Various global ML references of Pure and HOL have been turned into
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
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   292
configuration options:
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
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   293
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
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   294
  Unify.search_bound		unify_search_bound
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
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   295
  Unify.trace_bound		unify_trace_bound
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   296
  Unify.trace_simp		unify_trace_simp
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   297
  Unify.trace_types		unify_trace_types
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  Simplifier.simp_depth_limit	simp_depth_limit
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
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  Blast.depth_limit		blast_depth_limit
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  DatatypeProp.dtK		datatype_distinctness_limit
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   301
  fast_arith_neq_limit  	fast_arith_neq_limit
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   302
  fast_arith_split_limit	fast_arith_split_limit
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
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   303
24086
21900a460ba4 * Configuration options;
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   304
* Named collections of theorems may be easily installed as context
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   305
data using the functor NamedThmsFun (see also
24086
21900a460ba4 * Configuration options;
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   306
src/Pure/Tools/named_thms.ML).  The user may add or delete facts via
24110
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   307
attributes; there is also a toplevel print command.  This facility is
4ab3084e311c tuned config options: eliminated separate attribute "option";
wenzelm
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   308
just a common case of general context data, which is the preferred way
4ab3084e311c tuned config options: eliminated separate attribute "option";
wenzelm
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diff changeset
   309
for anything more complex than just a list of facts in canonical
4ab3084e311c tuned config options: eliminated separate attribute "option";
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order.
24086
21900a460ba4 * Configuration options;
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   311
24032
b3d7eb6f535f * Isar: command 'declaration';
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   312
* Isar: command 'declaration' augments a local theory by generic
b3d7eb6f535f * Isar: command 'declaration';
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   313
declaration functions written in ML.  This enables arbitrary content
b3d7eb6f535f * Isar: command 'declaration';
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   314
being added to the context, depending on a morphism that tells the
b3d7eb6f535f * Isar: command 'declaration';
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   315
difference of the original declaration context wrt. the application
b3d7eb6f535f * Isar: command 'declaration';
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   316
context encountered later on.
b3d7eb6f535f * Isar: command 'declaration';
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   317
b3d7eb6f535f * Isar: command 'declaration';
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diff changeset
   318
* Isar: proper interfaces for simplification procedures.  Command
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   319
'simproc_setup' declares named simprocs (with match patterns, and body
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   320
text in ML).  Attribute "simproc" adds/deletes simprocs in the current
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   321
context.  ML antiquotation @{simproc name} retrieves named simprocs.
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   322
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   323
* Isar: an extra pair of brackets around attribute declarations
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   324
abbreviates a theorem reference involving an internal dummy fact,
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   325
which will be ignored later --- only the effect of the attribute on
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   326
the background context will persist.  This form of in-place
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   327
declarations is particularly useful with commands like 'declare' and
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   328
'using', for example ``have A using [[simproc a]] by simp''.
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   329
23369
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
   330
* 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
   331
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
   332
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
   333
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
   334
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
   335
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
   336
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
   337
more permissive.
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
   338
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
   339
* 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
   340
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
   341
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
   342
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
   343
maintainability of proof texts.
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
   344
17865
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
   345
* Isar: improper proof element 'guess' is like 'obtain', but derives
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
   346
the obtained context from the course of reasoning!  For example:
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
   347
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
   348
  assume "EX x y. A x & B y"   -- "any previous fact"
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
   349
  then guess x and y by clarify
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
   350
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
   351
This technique is potentially adventurous, depending on the facts and
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
   352
proof tools being involved here.
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
   353
18020
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
   354
* Isar: known facts from the proof context may be specified as literal
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
   355
propositions, using ASCII back-quote syntax.  This works wherever
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
   356
named facts used to be allowed so far, in proof commands, proof
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
   357
methods, attributes etc.  Literal facts are retrieved from the context
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
   358
according to unification of type and term parameters.  For example,
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
   359
provided that "A" and "A ==> B" and "!!x. P x ==> Q x" are known
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
   360
theorems in the current context, then these are valid literal facts:
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
   361
`A` and `A ==> B` and `!!x. P x ==> Q x" as well as `P a ==> Q a` etc.
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
   362
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
   363
There is also a proof method "fact" which does the same composition
18044
wenzelm
parents: 18020
diff changeset
   364
for explicit goal states, e.g. the following proof texts coincide with
wenzelm
parents: 18020
diff changeset
   365
certain special cases of literal facts:
18020
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
   366
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
   367
  have "A" by fact                 ==  note `A`
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
   368
  have "A ==> B" by fact           ==  note `A ==> B`
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
   369
  have "!!x. P x ==> Q x" by fact  ==  note `!!x. P x ==> Q x`
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
   370
  have "P a ==> Q a" by fact       ==  note `P a ==> Q a`
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
   371
20118
0c1ec587a5a8 * Isar: ":" (colon) is no longer a symbolic identifier character;
wenzelm
parents: 20090
diff changeset
   372
* Isar: ":" (colon) is no longer a symbolic identifier character in
0c1ec587a5a8 * Isar: ":" (colon) is no longer a symbolic identifier character;
wenzelm
parents: 20090
diff changeset
   373
outer syntax.  Thus symbolic identifiers may be used without
0c1ec587a5a8 * Isar: ":" (colon) is no longer a symbolic identifier character;
wenzelm
parents: 20090
diff changeset
   374
additional white space in declarations like this: ``assume *: A''.
0c1ec587a5a8 * Isar: ":" (colon) is no longer a symbolic identifier character;
wenzelm
parents: 20090
diff changeset
   375
20013
57505678692d Isar: 'print_facts' prints all local facts;
wenzelm
parents: 19984
diff changeset
   376
* Isar: 'print_facts' prints all local facts of the current context,
57505678692d Isar: 'print_facts' prints all local facts;
wenzelm
parents: 19984
diff changeset
   377
both named and unnamed ones.
57505678692d Isar: 'print_facts' prints all local facts;
wenzelm
parents: 19984
diff changeset
   378
18308
f18a54840629 simulaneous 'def';
wenzelm
parents: 18267
diff changeset
   379
* Isar: 'def' now admits simultaneous definitions, e.g.:
f18a54840629 simulaneous 'def';
wenzelm
parents: 18267
diff changeset
   380
f18a54840629 simulaneous 'def';
wenzelm
parents: 18267
diff changeset
   381
  def x == "t" and y == "u"
f18a54840629 simulaneous 'def';
wenzelm
parents: 18267
diff changeset
   382
18540
7b6f57406b1b * Pure/Isar: new command 'unfolding';
wenzelm
parents: 18536
diff changeset
   383
* Isar: added command 'unfolding', which is structurally similar to
7b6f57406b1b * Pure/Isar: new command 'unfolding';
wenzelm
parents: 18536
diff changeset
   384
'using', but affects both the goal state and facts by unfolding given
18815
cb778c0ce1b5 Pure/Isar: (un)folded, (un)fold, unfolding support
wenzelm
parents: 18738
diff changeset
   385
rewrite rules.  Thus many occurrences of the 'unfold' method or
18540
7b6f57406b1b * Pure/Isar: new command 'unfolding';
wenzelm
parents: 18536
diff changeset
   386
'unfolded' attribute may be replaced by first-class proof text.
7b6f57406b1b * Pure/Isar: new command 'unfolding';
wenzelm
parents: 18536
diff changeset
   387
18815
cb778c0ce1b5 Pure/Isar: (un)folded, (un)fold, unfolding support
wenzelm
parents: 18738
diff changeset
   388
* Isar: methods 'unfold' / 'fold', attributes 'unfolded' / 'folded',
cb778c0ce1b5 Pure/Isar: (un)folded, (un)fold, unfolding support
wenzelm
parents: 18738
diff changeset
   389
and command 'unfolding' now all support object-level equalities
cb778c0ce1b5 Pure/Isar: (un)folded, (un)fold, unfolding support
wenzelm
parents: 18738
diff changeset
   390
(potentially conditional).  The underlying notion of rewrite rule is
cb778c0ce1b5 Pure/Isar: (un)folded, (un)fold, unfolding support
wenzelm
parents: 18738
diff changeset
   391
analogous to the 'rule_format' attribute, but *not* that of the
cb778c0ce1b5 Pure/Isar: (un)folded, (un)fold, unfolding support
wenzelm
parents: 18738
diff changeset
   392
Simplifier (which is usually more generous).
cb778c0ce1b5 Pure/Isar: (un)folded, (un)fold, unfolding support
wenzelm
parents: 18738
diff changeset
   393
24238
ae70f95e31de new attribute [rotated]
kleing
parents: 24234
diff changeset
   394
* Isar: the new attribute [rotated n] (default n = 1) rotates the
ae70f95e31de new attribute [rotated]
kleing
parents: 24234
diff changeset
   395
premises of a theorem by n. Useful in conjunction with drule.
ae70f95e31de new attribute [rotated]
kleing
parents: 24234
diff changeset
   396
19220
05b00acff957 Isar/method: goal restriction;
wenzelm
parents: 19211
diff changeset
   397
* Isar: the goal restriction operator [N] (default N = 1) evaluates a
05b00acff957 Isar/method: goal restriction;
wenzelm
parents: 19211
diff changeset
   398
method expression within a sandbox consisting of the first N
19240
wenzelm
parents: 19233
diff changeset
   399
sub-goals, which need to exist.  For example, ``simp_all [3]''
wenzelm
parents: 19233
diff changeset
   400
simplifies the first three sub-goals, while (rule foo, simp_all)[]
wenzelm
parents: 19233
diff changeset
   401
simplifies all new goals that emerge from applying rule foo to the
wenzelm
parents: 19233
diff changeset
   402
originally first one.
19220
05b00acff957 Isar/method: goal restriction;
wenzelm
parents: 19211
diff changeset
   403
19814
faa698d46686 * Theory syntax: some popular names (e.g. "class", "if") are now keywords.
wenzelm
parents: 19783
diff changeset
   404
* Isar: schematic goals are no longer restricted to higher-order
faa698d46686 * Theory syntax: some popular names (e.g. "class", "if") are now keywords.
wenzelm
parents: 19783
diff changeset
   405
patterns; e.g. ``lemma "?P(?x)" by (rule TrueI)'' now works as
faa698d46686 * Theory syntax: some popular names (e.g. "class", "if") are now keywords.
wenzelm
parents: 19783
diff changeset
   406
expected.
faa698d46686 * Theory syntax: some popular names (e.g. "class", "if") are now keywords.
wenzelm
parents: 19783
diff changeset
   407
18901
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   408
* Isar: the conclusion of a long theorem statement is now either
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   409
'shows' (a simultaneous conjunction, as before), or 'obtains'
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   410
(essentially a disjunction of cases with local parameters and
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   411
assumptions).  The latter allows to express general elimination rules
18910
wenzelm
parents: 18901
diff changeset
   412
adequately; in this notation common elimination rules look like this:
18901
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   413
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   414
  lemma exE:    -- "EX x. P x ==> (!!x. P x ==> thesis) ==> thesis"
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   415
    assumes "EX x. P x"
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   416
    obtains x where "P x"
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   417
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   418
  lemma conjE:  -- "A & B ==> (A ==> B ==> thesis) ==> thesis"
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   419
    assumes "A & B"
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   420
    obtains A and B
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   421
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   422
  lemma disjE:  -- "A | B ==> (A ==> thesis) ==> (B ==> thesis) ==> thesis"
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   423
    assumes "A | B"
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   424
    obtains
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   425
      A
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   426
    | B
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   427
18910
wenzelm
parents: 18901
diff changeset
   428
The subsequent classical rules even refer to the formal "thesis"
18901
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   429
explicitly:
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   430
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   431
  lemma classical:     -- "(~ thesis ==> thesis) ==> thesis"
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   432
    obtains "~ thesis"
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   433
18910
wenzelm
parents: 18901
diff changeset
   434
  lemma Peirce's_Law:  -- "((thesis ==> something) ==> thesis) ==> thesis"
wenzelm
parents: 18901
diff changeset
   435
    obtains "thesis ==> something"
18901
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   436
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   437
The actual proof of an 'obtains' statement is analogous to that of the
18910
wenzelm
parents: 18901
diff changeset
   438
Isar proof element 'obtain', only that there may be several cases.
wenzelm
parents: 18901
diff changeset
   439
Optional case names may be specified in parentheses; these will be
wenzelm
parents: 18901
diff changeset
   440
available both in the present proof and as annotations in the
wenzelm
parents: 18901
diff changeset
   441
resulting rule, for later use with the 'cases' method (cf. attribute
wenzelm
parents: 18901
diff changeset
   442
case_names).
18901
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   443
21447
379f130843f7 * Isar: the assumptions of a long theorem statement are available as assms;
wenzelm
parents: 21406
diff changeset
   444
* Isar: the assumptions of a long theorem statement are available as
379f130843f7 * Isar: the assumptions of a long theorem statement are available as assms;
wenzelm
parents: 21406
diff changeset
   445
"assms" fact in the proof context.  This is more appropriate than the
379f130843f7 * Isar: the assumptions of a long theorem statement are available as assms;
wenzelm
parents: 21406
diff changeset
   446
(historical) "prems", which refers to all assumptions of the current
379f130843f7 * Isar: the assumptions of a long theorem statement are available as assms;
wenzelm
parents: 21406
diff changeset
   447
context, including those from the target locale, proof body etc.
379f130843f7 * Isar: the assumptions of a long theorem statement are available as assms;
wenzelm
parents: 21406
diff changeset
   448
19263
a86d09815dac print_statement;
wenzelm
parents: 19254
diff changeset
   449
* Isar: 'print_statement' prints theorems from the current theory or
a86d09815dac print_statement;
wenzelm
parents: 19254
diff changeset
   450
proof context in long statement form, according to the syntax of a
a86d09815dac print_statement;
wenzelm
parents: 19254
diff changeset
   451
top-level lemma.
a86d09815dac print_statement;
wenzelm
parents: 19254
diff changeset
   452
18901
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   453
* Isar: 'obtain' takes an optional case name for the local context
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   454
introduction rule (default "that").
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
   455
19587
eb063e7932d7 * Isar: removed obsolete 'concl is' patterns.
wenzelm
parents: 19572
diff changeset
   456
* Isar: removed obsolete 'concl is' patterns.  INCOMPATIBILITY, use
eb063e7932d7 * Isar: removed obsolete 'concl is' patterns.
wenzelm
parents: 19572
diff changeset
   457
explicit (is "_ ==> ?foo") in the rare cases where this still happens
eb063e7932d7 * Isar: removed obsolete 'concl is' patterns.
wenzelm
parents: 19572
diff changeset
   458
to occur.
eb063e7932d7 * Isar: removed obsolete 'concl is' patterns.
wenzelm
parents: 19572
diff changeset
   459
19682
c8c301eb965a * Pure: syntax 'CONST name' produces a fully internalized constant;
wenzelm
parents: 19665
diff changeset
   460
* Pure: syntax "CONST name" produces a fully internalized constant
c8c301eb965a * Pure: syntax 'CONST name' produces a fully internalized constant;
wenzelm
parents: 19665
diff changeset
   461
according to the current context.  This is particularly useful for
c8c301eb965a * Pure: syntax 'CONST name' produces a fully internalized constant;
wenzelm
parents: 19665
diff changeset
   462
syntax translations that should refer to internal constant
c8c301eb965a * Pure: syntax 'CONST name' produces a fully internalized constant;
wenzelm
parents: 19665
diff changeset
   463
representations independently of name spaces.
c8c301eb965a * Pure: syntax 'CONST name' produces a fully internalized constant;
wenzelm
parents: 19665
diff changeset
   464
21537
45b3a85ee548 * Pure: syntax constant for foo (binder) is called foo_binder;
wenzelm
parents: 21471
diff changeset
   465
* Pure: syntax constant for foo (binder "FOO ") is called "foo_binder"
45b3a85ee548 * Pure: syntax constant for foo (binder) is called foo_binder;
wenzelm
parents: 21471
diff changeset
   466
instead of "FOO ". This allows multiple binder declarations to coexist
45b3a85ee548 * Pure: syntax constant for foo (binder) is called foo_binder;
wenzelm
parents: 21471
diff changeset
   467
in the same context.  INCOMPATIBILITY.
45b3a85ee548 * Pure: syntax constant for foo (binder) is called foo_binder;
wenzelm
parents: 21471
diff changeset
   468
21209
dbb8decc36bc 'const_syntax' command: allow fixed variables, renamed to 'notation';
wenzelm
parents: 21200
diff changeset
   469
* Isar/locales: 'notation' provides a robust interface to the 'syntax'
dbb8decc36bc 'const_syntax' command: allow fixed variables, renamed to 'notation';
wenzelm
parents: 21200
diff changeset
   470
primitive that also works in a locale context (both for constants and
24950
106fc30769a9 added 'no_notation';
wenzelm
parents: 24924
diff changeset
   471
fixed variables). Type declaration and internal syntactic representation
106fc30769a9 added 'no_notation';
wenzelm
parents: 24924
diff changeset
   472
of given constants retrieved from the context. Likewise, the
106fc30769a9 added 'no_notation';
wenzelm
parents: 24924
diff changeset
   473
'no_notation' command allows to remove given syntax annotations from the
106fc30769a9 added 'no_notation';
wenzelm
parents: 24924
diff changeset
   474
current context.
19682
c8c301eb965a * Pure: syntax 'CONST name' produces a fully internalized constant;
wenzelm
parents: 19665
diff changeset
   475
19665
8885951e9c2d * Isar/locale: 'const_syntax';
wenzelm
parents: 19653
diff changeset
   476
* Isar/locales: new derived specification elements 'axiomatization',
8885951e9c2d * Isar/locale: 'const_syntax';
wenzelm
parents: 19653
diff changeset
   477
'definition', 'abbreviation', which support type-inference, admit
19083
wenzelm
parents: 19081
diff changeset
   478
object-level specifications (equality, equivalence).  See also the
wenzelm
parents: 19081
diff changeset
   479
isar-ref manual.  Examples:
19081
085b5badb8de * Isar/locales: new derived specification elements 'definition', 'abbreviation', 'axiomatization';
wenzelm
parents: 19034
diff changeset
   480
19665
8885951e9c2d * Isar/locale: 'const_syntax';
wenzelm
parents: 19653
diff changeset
   481
  axiomatization
21595
wenzelm
parents: 21545
diff changeset
   482
    eq  (infix "===" 50) where
wenzelm
parents: 21545
diff changeset
   483
    eq_refl: "x === x" and eq_subst: "x === y ==> P x ==> P y"
wenzelm
parents: 21545
diff changeset
   484
wenzelm
parents: 21545
diff changeset
   485
  definition "f x y = x + y + 1"
wenzelm
parents: 21545
diff changeset
   486
  definition g where "g x = f x x"
19081
085b5badb8de * Isar/locales: new derived specification elements 'definition', 'abbreviation', 'axiomatization';
wenzelm
parents: 19034
diff changeset
   487
19363
667b5ea637dd refined 'abbreviation';
wenzelm
parents: 19279
diff changeset
   488
  abbreviation
21595
wenzelm
parents: 21545
diff changeset
   489
    neq  (infix "=!=" 50) where
19363
667b5ea637dd refined 'abbreviation';
wenzelm
parents: 19279
diff changeset
   490
    "x =!= y == ~ (x === y)"
19081
085b5badb8de * Isar/locales: new derived specification elements 'definition', 'abbreviation', 'axiomatization';
wenzelm
parents: 19034
diff changeset
   491
19083
wenzelm
parents: 19081
diff changeset
   492
These specifications may be also used in a locale context.  Then the
wenzelm
parents: 19081
diff changeset
   493
constants being introduced depend on certain fixed parameters, and the
wenzelm
parents: 19081
diff changeset
   494
constant name is qualified by the locale base name.  An internal
wenzelm
parents: 19081
diff changeset
   495
abbreviation takes care for convenient input and output, making the
19088
wenzelm
parents: 19084
diff changeset
   496
parameters implicit and using the original short name.  See also
25177
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
   497
src/HOL/ex/Abstract_NAT.thy for an example of deriving polymorphic
19083
wenzelm
parents: 19081
diff changeset
   498
entities from a monomorphic theory.
wenzelm
parents: 19081
diff changeset
   499
wenzelm
parents: 19081
diff changeset
   500
Presently, abbreviations are only available 'in' a target locale, but
19363
667b5ea637dd refined 'abbreviation';
wenzelm
parents: 19279
diff changeset
   501
not inherited by general import expressions.  Also note that
667b5ea637dd refined 'abbreviation';
wenzelm
parents: 19279
diff changeset
   502
'abbreviation' may be used as a type-safe replacement for 'syntax' +
24735
3a55ee2cae70 * Pure/Isar: unified specification syntax admits type inference and dummy patterns;
wenzelm
parents: 24706
diff changeset
   503
'translations' in common applications.  The "no_abbrevs" print mode
3a55ee2cae70 * Pure/Isar: unified specification syntax admits type inference and dummy patterns;
wenzelm
parents: 24706
diff changeset
   504
prevents folding of abbreviations in term output.
19084
wenzelm
parents: 19083
diff changeset
   505
19682
c8c301eb965a * Pure: syntax 'CONST name' produces a fully internalized constant;
wenzelm
parents: 19665
diff changeset
   506
Concrete syntax is attached to specified constants in internal form,
c8c301eb965a * Pure: syntax 'CONST name' produces a fully internalized constant;
wenzelm
parents: 19665
diff changeset
   507
independently of name spaces.  The parse tree representation is
21209
dbb8decc36bc 'const_syntax' command: allow fixed variables, renamed to 'notation';
wenzelm
parents: 21200
diff changeset
   508
slightly different -- use 'notation' instead of raw 'syntax', and
19682
c8c301eb965a * Pure: syntax 'CONST name' produces a fully internalized constant;
wenzelm
parents: 19665
diff changeset
   509
'translations' with explicit "CONST" markup to accommodate this.
19665
8885951e9c2d * Isar/locale: 'const_syntax';
wenzelm
parents: 19653
diff changeset
   510
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   511
* Pure/Isar: unified syntax for new-style specification mechanisms
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   512
(e.g.  'definition', 'abbreviation', or 'inductive' in HOL) admits
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   513
full type inference and dummy patterns ("_").  For example:
24735
3a55ee2cae70 * Pure/Isar: unified specification syntax admits type inference and dummy patterns;
wenzelm
parents: 24706
diff changeset
   514
3a55ee2cae70 * Pure/Isar: unified specification syntax admits type inference and dummy patterns;
wenzelm
parents: 24706
diff changeset
   515
  definition "K x _ = x"
3a55ee2cae70 * Pure/Isar: unified specification syntax admits type inference and dummy patterns;
wenzelm
parents: 24706
diff changeset
   516
24738
wenzelm
parents: 24737
diff changeset
   517
  inductive conj for A B
wenzelm
parents: 24737
diff changeset
   518
  where "A ==> B ==> conj A B"
wenzelm
parents: 24737
diff changeset
   519
21735
0c65e072f4be added print_abbrevs;
wenzelm
parents: 21717
diff changeset
   520
* Pure: command 'print_abbrevs' prints all constant abbreviations of
0c65e072f4be added print_abbrevs;
wenzelm
parents: 21717
diff changeset
   521
the current context.  Print mode "no_abbrevs" prevents inversion of
0c65e072f4be added print_abbrevs;
wenzelm
parents: 21717
diff changeset
   522
abbreviations on output.
0c65e072f4be added print_abbrevs;
wenzelm
parents: 21717
diff changeset
   523
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   524
* Isar/locales: improved parameter handling: use of locales "var" and
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   525
"struct" no longer necessary; - parameter renamings are no longer
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   526
required to be injective.  For example, this allows to define
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   527
endomorphisms as locale endom = homom mult mult h.
19783
82f365a14960 Improved parameter management of locales.
ballarin
parents: 19715
diff changeset
   528
19931
fb32b43e7f80 Restructured locales with predicates: import is now an interpretation.
ballarin
parents: 19895
diff changeset
   529
* Isar/locales: changed the way locales with predicates are defined.
fb32b43e7f80 Restructured locales with predicates: import is now an interpretation.
ballarin
parents: 19895
diff changeset
   530
Instead of accumulating the specification, the imported expression is
22126
wenzelm
parents: 22125
diff changeset
   531
now an interpretation.  INCOMPATIBILITY: different normal form of
wenzelm
parents: 22125
diff changeset
   532
locale expressions.  In particular, in interpretations of locales with
wenzelm
parents: 22125
diff changeset
   533
predicates, goals repesenting already interpreted fragments are not
wenzelm
parents: 22125
diff changeset
   534
removed automatically.  Use methods `intro_locales' and
wenzelm
parents: 22125
diff changeset
   535
`unfold_locales'; see below.
wenzelm
parents: 22125
diff changeset
   536
wenzelm
parents: 22125
diff changeset
   537
* Isar/locales: new methods `intro_locales' and `unfold_locales'
wenzelm
parents: 22125
diff changeset
   538
provide backward reasoning on locales predicates.  The methods are
wenzelm
parents: 22125
diff changeset
   539
aware of interpretations and discharge corresponding goals.
wenzelm
parents: 22125
diff changeset
   540
`intro_locales' is less aggressive then `unfold_locales' and does not
wenzelm
parents: 22125
diff changeset
   541
unfold predicates to assumptions.
19931
fb32b43e7f80 Restructured locales with predicates: import is now an interpretation.
ballarin
parents: 19895
diff changeset
   542
fb32b43e7f80 Restructured locales with predicates: import is now an interpretation.
ballarin
parents: 19895
diff changeset
   543
* Isar/locales: the order in which locale fragments are accumulated
22126
wenzelm
parents: 22125
diff changeset
   544
has changed.  This enables to override declarations from fragments due
wenzelm
parents: 22125
diff changeset
   545
to interpretations -- for example, unwanted simp rules.
19931
fb32b43e7f80 Restructured locales with predicates: import is now an interpretation.
ballarin
parents: 19895
diff changeset
   546
23920
4288dc7dc248 interpretation: unfolding of equations;
ballarin
parents: 23889
diff changeset
   547
* Isar/locales: interpretation in theories and proof contexts has been
4288dc7dc248 interpretation: unfolding of equations;
ballarin
parents: 23889
diff changeset
   548
extended.  One may now specify (and prove) equations, which are
4288dc7dc248 interpretation: unfolding of equations;
ballarin
parents: 23889
diff changeset
   549
unfolded in interpreted theorems.  This is useful for replacing
4288dc7dc248 interpretation: unfolding of equations;
ballarin
parents: 23889
diff changeset
   550
defined concepts (constants depending on locale parameters) by
4288dc7dc248 interpretation: unfolding of equations;
ballarin
parents: 23889
diff changeset
   551
concepts already existing in the target context.  Example:
4288dc7dc248 interpretation: unfolding of equations;
ballarin
parents: 23889
diff changeset
   552
4288dc7dc248 interpretation: unfolding of equations;
ballarin
parents: 23889
diff changeset
   553
  interpretation partial_order ["op <= :: [int, int] => bool"]
4288dc7dc248 interpretation: unfolding of equations;
ballarin
parents: 23889
diff changeset
   554
    where "partial_order.less (op <=) (x::int) y = (x < y)"
4288dc7dc248 interpretation: unfolding of equations;
ballarin
parents: 23889
diff changeset
   555
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   556
Typically, the constant `partial_order.less' is created by a
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   557
definition specification element in the context of locale
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   558
partial_order.
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   559
24859
9b9b1599fb89 tuned induct etc.;
wenzelm
parents: 24804
diff changeset
   560
* Method "induct": improved internal context management to support
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   561
local fixes and defines on-the-fly. Thus explicit meta-level
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   562
connectives !!  and ==> are rarely required anymore in inductive goals
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   563
(using object-logic connectives for this purpose has been long
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   564
obsolete anyway). Common proof patterns are explained in
25177
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
   565
src/HOL/Induct/Common_Patterns.thy, see also
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
   566
src/HOL/Isar_examples/Puzzle.thy and src/HOL/Lambda for realistic
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
   567
examples.
24606
7acbb982fc77 moved induct patterns to HOL/Induct/Common_Patterns.thy;
wenzelm
parents: 24507
diff changeset
   568
24859
9b9b1599fb89 tuned induct etc.;
wenzelm
parents: 24804
diff changeset
   569
* Method "induct": improved handling of simultaneous goals. Instead of
24606
7acbb982fc77 moved induct patterns to HOL/Induct/Common_Patterns.thy;
wenzelm
parents: 24507
diff changeset
   570
introducing object-level conjunction, the statement is now split into
7acbb982fc77 moved induct patterns to HOL/Induct/Common_Patterns.thy;
wenzelm
parents: 24507
diff changeset
   571
several conclusions, while the corresponding symbolic cases are nested
7acbb982fc77 moved induct patterns to HOL/Induct/Common_Patterns.thy;
wenzelm
parents: 24507
diff changeset
   572
accordingly. INCOMPATIBILITY, proofs need to be structured explicitly,
25177
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
   573
see src/HOL/Induct/Common_Patterns.thy, for example.
24606
7acbb982fc77 moved induct patterns to HOL/Induct/Common_Patterns.thy;
wenzelm
parents: 24507
diff changeset
   574
24859
9b9b1599fb89 tuned induct etc.;
wenzelm
parents: 24804
diff changeset
   575
* Method "induct": mutual induction rules are now specified as a list
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   576
of rule sharing the same induction cases. HOL packages usually provide
24606
7acbb982fc77 moved induct patterns to HOL/Induct/Common_Patterns.thy;
wenzelm
parents: 24507
diff changeset
   577
foo_bar.inducts for mutually defined items foo and bar (e.g. inductive
24859
9b9b1599fb89 tuned induct etc.;
wenzelm
parents: 24804
diff changeset
   578
predicates/sets or datatypes). INCOMPATIBILITY, users need to specify
9b9b1599fb89 tuned induct etc.;
wenzelm
parents: 24804
diff changeset
   579
mutual induction rules differently, i.e. like this:
18506
96260fb11449 * Provers/induct: support simultaneous goals with mutual rules;
wenzelm
parents: 18495
diff changeset
   580
96260fb11449 * Provers/induct: support simultaneous goals with mutual rules;
wenzelm
parents: 18495
diff changeset
   581
  (induct rule: foo_bar.inducts)
96260fb11449 * Provers/induct: support simultaneous goals with mutual rules;
wenzelm
parents: 18495
diff changeset
   582
  (induct set: foo bar)
24859
9b9b1599fb89 tuned induct etc.;
wenzelm
parents: 24804
diff changeset
   583
  (induct pred: foo bar)
18506
96260fb11449 * Provers/induct: support simultaneous goals with mutual rules;
wenzelm
parents: 18495
diff changeset
   584
  (induct type: foo bar)
96260fb11449 * Provers/induct: support simultaneous goals with mutual rules;
wenzelm
parents: 18495
diff changeset
   585
96260fb11449 * Provers/induct: support simultaneous goals with mutual rules;
wenzelm
parents: 18495
diff changeset
   586
The ML function ProjectRule.projections turns old-style rules into the
96260fb11449 * Provers/induct: support simultaneous goals with mutual rules;
wenzelm
parents: 18495
diff changeset
   587
new format.
96260fb11449 * Provers/induct: support simultaneous goals with mutual rules;
wenzelm
parents: 18495
diff changeset
   588
24859
9b9b1599fb89 tuned induct etc.;
wenzelm
parents: 24804
diff changeset
   589
* Method "coinduct": dual of induction, see
18399
651438736fa1 Provers/induct: coinduct;
wenzelm
parents: 18370
diff changeset
   590
src/HOL/Library/Coinductive_List.thy for various examples.
651438736fa1 Provers/induct: coinduct;
wenzelm
parents: 18370
diff changeset
   591
24859
9b9b1599fb89 tuned induct etc.;
wenzelm
parents: 24804
diff changeset
   592
* Method "cases", "induct", "coinduct": the ``(open)'' option is
9b9b1599fb89 tuned induct etc.;
wenzelm
parents: 24804
diff changeset
   593
considered a legacy feature.
9b9b1599fb89 tuned induct etc.;
wenzelm
parents: 24804
diff changeset
   594
20919
dab803075c62 attribute "symmetric": standardized schematic variables;
wenzelm
parents: 20857
diff changeset
   595
* Attribute "symmetric" produces result with standardized schematic
dab803075c62 attribute "symmetric": standardized schematic variables;
wenzelm
parents: 20857
diff changeset
   596
variables (index 0).  Potential INCOMPATIBILITY.
dab803075c62 attribute "symmetric": standardized schematic variables;
wenzelm
parents: 20857
diff changeset
   597
22126
wenzelm
parents: 22125
diff changeset
   598
* Simplifier: by default the simplifier trace only shows top level
wenzelm
parents: 22125
diff changeset
   599
rewrites now. That is, trace_simp_depth_limit is set to 1 by
wenzelm
parents: 22125
diff changeset
   600
default. Thus there is less danger of being flooded by the trace. The
wenzelm
parents: 22125
diff changeset
   601
trace indicates where parts have been suppressed.
18674
98d380757893 *** empty log message ***
nipkow
parents: 18644
diff changeset
   602
  
18536
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
   603
* Provers/classical: removed obsolete classical version of elim_format
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
   604
attribute; classical elim/dest rules are now treated uniformly when
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
   605
manipulating the claset.
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
   606
18694
83f50ac6ddcb * Classical: optional weight for attributes;
wenzelm
parents: 18687
diff changeset
   607
* Provers/classical: stricter checks to ensure that supplied intro,
83f50ac6ddcb * Classical: optional weight for attributes;
wenzelm
parents: 18687
diff changeset
   608
dest and elim rules are well-formed; dest and elim rules must have at
83f50ac6ddcb * Classical: optional weight for attributes;
wenzelm
parents: 18687
diff changeset
   609
least one premise.
83f50ac6ddcb * Classical: optional weight for attributes;
wenzelm
parents: 18687
diff changeset
   610
83f50ac6ddcb * Classical: optional weight for attributes;
wenzelm
parents: 18687
diff changeset
   611
* Provers/classical: attributes dest/elim/intro take an optional
18695
wenzelm
parents: 18694
diff changeset
   612
weight argument for the rule (just as the Pure versions).  Weights are
18696
wenzelm
parents: 18695
diff changeset
   613
ignored by automated tools, but determine the search order of single
18694
83f50ac6ddcb * Classical: optional weight for attributes;
wenzelm
parents: 18687
diff changeset
   614
rule steps.
18557
60a0f9caa0a2 Provers/classical: stricter checks to ensure that supplied intro, dest and
paulson
parents: 18549
diff changeset
   615
18536
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
   616
* Syntax: input syntax now supports dummy variable binding "%_. b",
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
   617
where the body does not mention the bound variable.  Note that dummy
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
   618
patterns implicitly depend on their context of bounds, which makes
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
   619
"{_. _}" match any set comprehension as expected.  Potential
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
   620
INCOMPATIBILITY -- parse translations need to cope with syntactic
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
   621
constant "_idtdummy" in the binding position.
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
   622
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
   623
* Syntax: removed obsolete syntactic constant "_K" and its associated
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
   624
parse translation.  INCOMPATIBILITY -- use dummy abstraction instead,
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
   625
for example "A -> B" => "Pi A (%_. B)".
17779
407bea05c2da added dummy variable binding;
wenzelm
parents: 17754
diff changeset
   626
20582
ebd0e03c6a9b * Pure: 'class_deps' command visualizes the subclass relation;
wenzelm
parents: 20503
diff changeset
   627
* Pure: 'class_deps' command visualizes the subclass relation, using
ebd0e03c6a9b * Pure: 'class_deps' command visualizes the subclass relation;
wenzelm
parents: 20503
diff changeset
   628
the graph browser tool.
ebd0e03c6a9b * Pure: 'class_deps' command visualizes the subclass relation;
wenzelm
parents: 20503
diff changeset
   629
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   630
* Pure: 'print_theory' now suppresses certain internal declarations by
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   631
default; use '!' option for full details.
20620
8b26f58c5646 * Pure: 'print_theory' now suppresses entities with internal name;
wenzelm
parents: 20607
diff changeset
   632
17865
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
   633
17806
b6a547bfb419 *** empty log message ***
nipkow
parents: 17780
diff changeset
   634
*** HOL ***
b6a547bfb419 *** empty log message ***
nipkow
parents: 17780
diff changeset
   635
25129
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   636
* Method "metis" proves goals by applying the Metis general-purpose
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   637
resolution prover (see also http://gilith.com/software/metis/).
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   638
Examples are in the directory MetisExamples.  WARNING: the
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   639
Isabelle/HOL-Metis integration does not yet work properly with
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   640
multi-threading.
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   641
  
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   642
* Command 'sledgehammer' invokes external automatic theorem provers as
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   643
background processes.  It generates calls to the "metis" method if
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   644
successful. These can be pasted into the proof.  Users do not have to
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   645
wait for the automatic provers to return.  WARNING: does not really
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   646
work with multi-threading.
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   647
24804
513bb015b469 added auto_quickcheck feature;
wenzelm
parents: 24801
diff changeset
   648
* New "auto_quickcheck" feature tests outermost goal statements for
513bb015b469 added auto_quickcheck feature;
wenzelm
parents: 24801
diff changeset
   649
potential counter-examples.  Controlled by ML references
513bb015b469 added auto_quickcheck feature;
wenzelm
parents: 24801
diff changeset
   650
auto_quickcheck (default true) and auto_quickcheck_time_limit (default
25129
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   651
5000 milliseconds).  Fails silently if statements is outside of
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   652
executable fragment, or any other codgenerator problem occurs.
24804
513bb015b469 added auto_quickcheck feature;
wenzelm
parents: 24801
diff changeset
   653
25184
haftmann
parents: 25177
diff changeset
   654
* New constant "undefined" with axiom "undefined x = undefined".
haftmann
parents: 25177
diff changeset
   655
haftmann
parents: 25177
diff changeset
   656
* Added class "HOL.eq", allowing for code generation with polymorphic
haftmann
parents: 25177
diff changeset
   657
equality.
haftmann
parents: 25177
diff changeset
   658
haftmann
parents: 25177
diff changeset
   659
* Some renaming of class constants due to canonical name prefixing in
haftmann
parents: 25177
diff changeset
   660
the new 'class' package:
haftmann
parents: 25177
diff changeset
   661
haftmann
parents: 25177
diff changeset
   662
    HOL.abs ~> HOL.abs_class.abs
haftmann
parents: 25177
diff changeset
   663
    HOL.divide ~> HOL.divide_class.divide
haftmann
parents: 25177
diff changeset
   664
    0 ~> HOL.zero_class.zero
haftmann
parents: 25177
diff changeset
   665
    1 ~> HOL.one_class.one
haftmann
parents: 25177
diff changeset
   666
    op + ~> HOL.plus_class.plus
haftmann
parents: 25177
diff changeset
   667
    op - ~> HOL.minus_class.minus
haftmann
parents: 25177
diff changeset
   668
    uminus ~> HOL.minus_class.uminus
haftmann
parents: 25177
diff changeset
   669
    op * ~> HOL.times_class.times
haftmann
parents: 25177
diff changeset
   670
    op < ~> HOL.ord_class.less
haftmann
parents: 25177
diff changeset
   671
    op <= > HOL.ord_class.less_eq
haftmann
parents: 25177
diff changeset
   672
    Nat.power ~> Power.power_class.power
haftmann
parents: 25177
diff changeset
   673
    Nat.size ~> Nat.size_class.size
haftmann
parents: 25177
diff changeset
   674
    Numeral.number_of ~> Numeral.number_class.number_of
haftmann
parents: 25177
diff changeset
   675
    FixedPoint.Inf ~> Lattices.complete_lattice_class.Inf
haftmann
parents: 25177
diff changeset
   676
    FixedPoint.Sup ~> Lattices.complete_lattice_class.Sup
haftmann
parents: 25177
diff changeset
   677
    Orderings.min ~> Orderings.ord_class.min
haftmann
parents: 25177
diff changeset
   678
    Orderings.max ~> Orderings.ord_class.max
haftmann
parents: 25177
diff changeset
   679
    Divides.op div ~> Divides.div_class.div
haftmann
parents: 25177
diff changeset
   680
    Divides.op mod ~> Divides.div_class.mod
haftmann
parents: 25177
diff changeset
   681
    Divides.op dvd ~> Divides.div_class.dvd
haftmann
parents: 25177
diff changeset
   682
haftmann
parents: 25177
diff changeset
   683
INCOMPATIBILITY.  Adaptions may be required in the following cases:
haftmann
parents: 25177
diff changeset
   684
haftmann
parents: 25177
diff changeset
   685
a) User-defined constants using any of the names "plus", "minus",
haftmann
parents: 25177
diff changeset
   686
"times", "less" or "less_eq". The standard syntax translations for
haftmann
parents: 25177
diff changeset
   687
"+", "-" and "*" may go wrong.  INCOMPATIBILITY: use more specific
haftmann
parents: 25177
diff changeset
   688
names.
haftmann
parents: 25177
diff changeset
   689
haftmann
parents: 25177
diff changeset
   690
b) Variables named "plus", "minus", "times", "less", "less_eq"
haftmann
parents: 25177
diff changeset
   691
INCOMPATIBILITY: use more specific names.
haftmann
parents: 25177
diff changeset
   692
haftmann
parents: 25177
diff changeset
   693
c) Permutative equations (e.g. "a + b = b + a")
haftmann
parents: 25177
diff changeset
   694
Since the change of names also changes the order of terms, permutative
haftmann
parents: 25177
diff changeset
   695
rewrite rules may get applied in a different order. Experience shows
haftmann
parents: 25177
diff changeset
   696
that this is rarely the case (only two adaptions in the whole Isabelle
haftmann
parents: 25177
diff changeset
   697
distribution).  INCOMPATIBILITY: rewrite proofs
haftmann
parents: 25177
diff changeset
   698
haftmann
parents: 25177
diff changeset
   699
d) ML code directly refering to constant names
haftmann
parents: 25177
diff changeset
   700
This in general only affects hand-written proof tactics, simprocs and
haftmann
parents: 25177
diff changeset
   701
so on.  INCOMPATIBILITY: grep your sourcecode and replace names.
haftmann
parents: 25177
diff changeset
   702
Consider using @{const_name} antiquotation.
haftmann
parents: 25177
diff changeset
   703
haftmann
parents: 25177
diff changeset
   704
* New class "default" with associated constant "default".
haftmann
parents: 25177
diff changeset
   705
haftmann
parents: 25177
diff changeset
   706
* Function "sgn" is now overloaded and available on int, real, complex
haftmann
parents: 25177
diff changeset
   707
(and other numeric types), using class "sgn".  Two possible defs of
haftmann
parents: 25177
diff changeset
   708
sgn are given as equational assumptions in the classes sgn_if and
haftmann
parents: 25177
diff changeset
   709
sgn_div_norm; ordered_idom now also inherits from sgn_if.
haftmann
parents: 25177
diff changeset
   710
INCOMPATIBILITY.
haftmann
parents: 25177
diff changeset
   711
haftmann
parents: 25177
diff changeset
   712
* Locale "partial_order" now unified with class "order" (cf. theory
haftmann
parents: 25177
diff changeset
   713
Orderings), added parameter "less".  INCOMPATIBILITY.
haftmann
parents: 25177
diff changeset
   714
haftmann
parents: 25177
diff changeset
   715
* Renamings in classes "order" and "linorder": facts "refl", "trans" and
haftmann
parents: 25177
diff changeset
   716
"cases" to "order_refl", "order_trans" and "linorder_cases", to avoid
haftmann
parents: 25177
diff changeset
   717
clashes with HOL "refl" and "trans".  INCOMPATIBILITY.
haftmann
parents: 25177
diff changeset
   718
haftmann
parents: 25177
diff changeset
   719
* Classes "order" and "linorder": potential INCOMPATIBILITY due to
haftmann
parents: 25177
diff changeset
   720
changed order of proof goals in instance proofs.
haftmann
parents: 25177
diff changeset
   721
haftmann
parents: 25177
diff changeset
   722
* The transitivity reasoner for partial and linear orders is set up
haftmann
parents: 25177
diff changeset
   723
for classes "order" and "linorder".  Instances of the reasoner are available
haftmann
parents: 25177
diff changeset
   724
in all contexts importing or interpreting the corresponding locales.
haftmann
parents: 25177
diff changeset
   725
Method "order" invokes the reasoner separately; the reasoner
haftmann
parents: 25177
diff changeset
   726
is also integrated with the Simplifier as a solver.  Diagnostic
haftmann
parents: 25177
diff changeset
   727
command 'print_orders' shows the available instances of the reasoner
haftmann
parents: 25177
diff changeset
   728
in the current context.
haftmann
parents: 25177
diff changeset
   729
haftmann
parents: 25177
diff changeset
   730
* Localized monotonicity predicate in theory "Orderings"; integrated
haftmann
parents: 25177
diff changeset
   731
lemmas max_of_mono and min_of_mono with this predicate.
haftmann
parents: 25177
diff changeset
   732
INCOMPATIBILITY.
haftmann
parents: 25177
diff changeset
   733
haftmann
parents: 25177
diff changeset
   734
* Formulation of theorem "dense" changed slightly due to integration
haftmann
parents: 25177
diff changeset
   735
with new class dense_linear_order.
haftmann
parents: 25177
diff changeset
   736
haftmann
parents: 25177
diff changeset
   737
* Uniform lattice theory development in HOL.
haftmann
parents: 25177
diff changeset
   738
haftmann
parents: 25177
diff changeset
   739
    constants "meet" and "join" now named "inf" and "sup"
haftmann
parents: 25177
diff changeset
   740
    constant "Meet" now named "Inf"
haftmann
parents: 25177
diff changeset
   741
haftmann
parents: 25177
diff changeset
   742
    classes "meet_semilorder" and "join_semilorder" now named
haftmann
parents: 25177
diff changeset
   743
      "lower_semilattice" and "upper_semilattice"
haftmann
parents: 25177
diff changeset
   744
    class "lorder" now named "lattice"
haftmann
parents: 25177
diff changeset
   745
    class "comp_lat" now named "complete_lattice"
haftmann
parents: 25177
diff changeset
   746
haftmann
parents: 25177
diff changeset
   747
    Instantiation of lattice classes allows explicit definitions
haftmann
parents: 25177
diff changeset
   748
    for "inf" and "sup" operations (or "Inf" and "Sup" for complete lattices).
haftmann
parents: 25177
diff changeset
   749
haftmann
parents: 25177
diff changeset
   750
  INCOMPATIBILITY.  Theorem renames:
haftmann
parents: 25177
diff changeset
   751
haftmann
parents: 25177
diff changeset
   752
    meet_left_le            ~> inf_le1
haftmann
parents: 25177
diff changeset
   753
    meet_right_le           ~> inf_le2
haftmann
parents: 25177
diff changeset
   754
    join_left_le            ~> sup_ge1
haftmann
parents: 25177
diff changeset
   755
    join_right_le           ~> sup_ge2
haftmann
parents: 25177
diff changeset
   756
    meet_join_le            ~> inf_sup_ord
haftmann
parents: 25177
diff changeset
   757
    le_meetI                ~> le_infI
haftmann
parents: 25177
diff changeset
   758
    join_leI                ~> le_supI
haftmann
parents: 25177
diff changeset
   759
    le_meet                 ~> le_inf_iff
haftmann
parents: 25177
diff changeset
   760
    le_join                 ~> ge_sup_conv
haftmann
parents: 25177
diff changeset
   761
    meet_idempotent         ~> inf_idem
haftmann
parents: 25177
diff changeset
   762
    join_idempotent         ~> sup_idem
haftmann
parents: 25177
diff changeset
   763
    meet_comm               ~> inf_commute
haftmann
parents: 25177
diff changeset
   764
    join_comm               ~> sup_commute
haftmann
parents: 25177
diff changeset
   765
    meet_leI1               ~> le_infI1
haftmann
parents: 25177
diff changeset
   766
    meet_leI2               ~> le_infI2
haftmann
parents: 25177
diff changeset
   767
    le_joinI1               ~> le_supI1
haftmann
parents: 25177
diff changeset
   768
    le_joinI2               ~> le_supI2
haftmann
parents: 25177
diff changeset
   769
    meet_assoc              ~> inf_assoc
haftmann
parents: 25177
diff changeset
   770
    join_assoc              ~> sup_assoc
haftmann
parents: 25177
diff changeset
   771
    meet_left_comm          ~> inf_left_commute
haftmann
parents: 25177
diff changeset
   772
    meet_left_idempotent    ~> inf_left_idem
haftmann
parents: 25177
diff changeset
   773
    join_left_comm          ~> sup_left_commute
haftmann
parents: 25177
diff changeset
   774
    join_left_idempotent    ~> sup_left_idem
haftmann
parents: 25177
diff changeset
   775
    meet_aci                ~> inf_aci
haftmann
parents: 25177
diff changeset
   776
    join_aci                ~> sup_aci
haftmann
parents: 25177
diff changeset
   777
    le_def_meet             ~> le_iff_inf
haftmann
parents: 25177
diff changeset
   778
    le_def_join             ~> le_iff_sup
haftmann
parents: 25177
diff changeset
   779
    join_absorp2            ~> sup_absorb2
haftmann
parents: 25177
diff changeset
   780
    join_absorp1            ~> sup_absorb1
haftmann
parents: 25177
diff changeset
   781
    meet_absorp1            ~> inf_absorb1
haftmann
parents: 25177
diff changeset
   782
    meet_absorp2            ~> inf_absorb2
haftmann
parents: 25177
diff changeset
   783
    meet_join_absorp        ~> inf_sup_absorb
haftmann
parents: 25177
diff changeset
   784
    join_meet_absorp        ~> sup_inf_absorb
haftmann
parents: 25177
diff changeset
   785
    distrib_join_le         ~> distrib_sup_le
haftmann
parents: 25177
diff changeset
   786
    distrib_meet_le         ~> distrib_inf_le
haftmann
parents: 25177
diff changeset
   787
haftmann
parents: 25177
diff changeset
   788
    add_meet_distrib_left   ~> add_inf_distrib_left
haftmann
parents: 25177
diff changeset
   789
    add_join_distrib_left   ~> add_sup_distrib_left
haftmann
parents: 25177
diff changeset
   790
    is_join_neg_meet        ~> is_join_neg_inf
haftmann
parents: 25177
diff changeset
   791
    is_meet_neg_join        ~> is_meet_neg_sup
haftmann
parents: 25177
diff changeset
   792
    add_meet_distrib_right  ~> add_inf_distrib_right
haftmann
parents: 25177
diff changeset
   793
    add_join_distrib_right  ~> add_sup_distrib_right
haftmann
parents: 25177
diff changeset
   794
    add_meet_join_distribs  ~> add_sup_inf_distribs
haftmann
parents: 25177
diff changeset
   795
    join_eq_neg_meet        ~> sup_eq_neg_inf
haftmann
parents: 25177
diff changeset
   796
    meet_eq_neg_join        ~> inf_eq_neg_sup
haftmann
parents: 25177
diff changeset
   797
    add_eq_meet_join        ~> add_eq_inf_sup
haftmann
parents: 25177
diff changeset
   798
    meet_0_imp_0            ~> inf_0_imp_0
haftmann
parents: 25177
diff changeset
   799
    join_0_imp_0            ~> sup_0_imp_0
haftmann
parents: 25177
diff changeset
   800
    meet_0_eq_0             ~> inf_0_eq_0
haftmann
parents: 25177
diff changeset
   801
    join_0_eq_0             ~> sup_0_eq_0
haftmann
parents: 25177
diff changeset
   802
    neg_meet_eq_join        ~> neg_inf_eq_sup
haftmann
parents: 25177
diff changeset
   803
    neg_join_eq_meet        ~> neg_sup_eq_inf
haftmann
parents: 25177
diff changeset
   804
    join_eq_if              ~> sup_eq_if
haftmann
parents: 25177
diff changeset
   805
haftmann
parents: 25177
diff changeset
   806
    mono_meet               ~> mono_inf
haftmann
parents: 25177
diff changeset
   807
    mono_join               ~> mono_sup
haftmann
parents: 25177
diff changeset
   808
    meet_bool_eq            ~> inf_bool_eq
haftmann
parents: 25177
diff changeset
   809
    join_bool_eq            ~> sup_bool_eq
haftmann
parents: 25177
diff changeset
   810
    meet_fun_eq             ~> inf_fun_eq
haftmann
parents: 25177
diff changeset
   811
    join_fun_eq             ~> sup_fun_eq
haftmann
parents: 25177
diff changeset
   812
    meet_set_eq             ~> inf_set_eq
haftmann
parents: 25177
diff changeset
   813
    join_set_eq             ~> sup_set_eq
haftmann
parents: 25177
diff changeset
   814
    meet1_iff               ~> inf1_iff
haftmann
parents: 25177
diff changeset
   815
    meet2_iff               ~> inf2_iff
haftmann
parents: 25177
diff changeset
   816
    meet1I                  ~> inf1I
haftmann
parents: 25177
diff changeset
   817
    meet2I                  ~> inf2I
haftmann
parents: 25177
diff changeset
   818
    meet1D1                 ~> inf1D1
haftmann
parents: 25177
diff changeset
   819
    meet2D1                 ~> inf2D1
haftmann
parents: 25177
diff changeset
   820
    meet1D2                 ~> inf1D2
haftmann
parents: 25177
diff changeset
   821
    meet2D2                 ~> inf2D2
haftmann
parents: 25177
diff changeset
   822
    meet1E                  ~> inf1E
haftmann
parents: 25177
diff changeset
   823
    meet2E                  ~> inf2E
haftmann
parents: 25177
diff changeset
   824
    join1_iff               ~> sup1_iff
haftmann
parents: 25177
diff changeset
   825
    join2_iff               ~> sup2_iff
haftmann
parents: 25177
diff changeset
   826
    join1I1                 ~> sup1I1
haftmann
parents: 25177
diff changeset
   827
    join2I1                 ~> sup2I1
haftmann
parents: 25177
diff changeset
   828
    join1I1                 ~> sup1I1
haftmann
parents: 25177
diff changeset
   829
    join2I2                 ~> sup1I2
haftmann
parents: 25177
diff changeset
   830
    join1CI                 ~> sup1CI
haftmann
parents: 25177
diff changeset
   831
    join2CI                 ~> sup2CI
haftmann
parents: 25177
diff changeset
   832
    join1E                  ~> sup1E
haftmann
parents: 25177
diff changeset
   833
    join2E                  ~> sup2E
haftmann
parents: 25177
diff changeset
   834
haftmann
parents: 25177
diff changeset
   835
    is_meet_Meet            ~> is_meet_Inf
haftmann
parents: 25177
diff changeset
   836
    Meet_bool_def           ~> Inf_bool_def
haftmann
parents: 25177
diff changeset
   837
    Meet_fun_def            ~> Inf_fun_def
haftmann
parents: 25177
diff changeset
   838
    Meet_greatest           ~> Inf_greatest
haftmann
parents: 25177
diff changeset
   839
    Meet_lower              ~> Inf_lower
haftmann
parents: 25177
diff changeset
   840
    Meet_set_def            ~> Inf_set_def
haftmann
parents: 25177
diff changeset
   841
haftmann
parents: 25177
diff changeset
   842
    Sup_def                 ~> Sup_Inf
haftmann
parents: 25177
diff changeset
   843
    Sup_bool_eq             ~> Sup_bool_def
haftmann
parents: 25177
diff changeset
   844
    Sup_fun_eq              ~> Sup_fun_def
haftmann
parents: 25177
diff changeset
   845
    Sup_set_eq              ~> Sup_set_def
haftmann
parents: 25177
diff changeset
   846
haftmann
parents: 25177
diff changeset
   847
    listsp_meetI            ~> listsp_infI
haftmann
parents: 25177
diff changeset
   848
    listsp_meet_eq          ~> listsp_inf_eq
haftmann
parents: 25177
diff changeset
   849
haftmann
parents: 25177
diff changeset
   850
    meet_min                ~> inf_min
haftmann
parents: 25177
diff changeset
   851
    join_max                ~> sup_max
haftmann
parents: 25177
diff changeset
   852
haftmann
parents: 25177
diff changeset
   853
* Added syntactic class "size"; overloaded constant "size" now has
haftmann
parents: 25177
diff changeset
   854
type "'a::size ==> bool"
haftmann
parents: 25177
diff changeset
   855
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   856
* Internal reorganisation of `size' of datatypes: size theorems
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   857
"foo.size" are no longer subsumed by "foo.simps" (but are still
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   858
simplification rules by default!); theorems "prod.size" now named
25184
haftmann
parents: 25177
diff changeset
   859
"*.size".
haftmann
parents: 25177
diff changeset
   860
haftmann
parents: 25177
diff changeset
   861
* Class "div" now inherits from class "times" rather than "type".
haftmann
parents: 25177
diff changeset
   862
INCOMPATIBILITY.
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   863
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   864
* HOL/Finite_Set: "name-space" locales Lattice, Distrib_lattice,
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   865
Linorder etc.  have disappeared; operations defined in terms of
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   866
fold_set now are named Inf_fin, Sup_fin.  INCOMPATIBILITY.
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   867
25129
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   868
* HOL/Nat: neq0_conv no longer declared as iff.  INCOMPATIBILITY.
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   869
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   870
* HOL-Word: New extensive library and type for generic, fixed size
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   871
machine words, with arithemtic, bit-wise, shifting and rotating
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   872
operations, reflection into int, nat, and bool lists, automation for
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   873
linear arithmetic (by automatic reflection into nat or int), including
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   874
lemmas on overflow and monotonicity.  Instantiated to all appropriate
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   875
arithmetic type classes, supporting automatic simplification of
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   876
numerals on all operations.
24333
e77ea0ea7f2c * HOL-Word:
kleing
parents: 24238
diff changeset
   877
e77ea0ea7f2c * HOL-Word:
kleing
parents: 24238
diff changeset
   878
* Library/Boolean_Algebra: locales for abstract boolean algebras.
e77ea0ea7f2c * HOL-Word:
kleing
parents: 24238
diff changeset
   879
e77ea0ea7f2c * HOL-Word:
kleing
parents: 24238
diff changeset
   880
* Library/Numeral_Type: numbers as types, e.g. TYPE(32).
e77ea0ea7f2c * HOL-Word:
kleing
parents: 24238
diff changeset
   881
23850
f1434532a562 updated
haftmann
parents: 23783
diff changeset
   882
* Code generator library theories:
24993
92dfacb32053 class div inherits from class times
haftmann
parents: 24950
diff changeset
   883
  - Code_Integer represents HOL integers by big integer literals in target
23850
f1434532a562 updated
haftmann
parents: 23783
diff changeset
   884
    languages.
24993
92dfacb32053 class div inherits from class times
haftmann
parents: 24950
diff changeset
   885
  - Code_Char represents HOL characters by character literals in target
23850
f1434532a562 updated
haftmann
parents: 23783
diff changeset
   886
    languages.
24993
92dfacb32053 class div inherits from class times
haftmann
parents: 24950
diff changeset
   887
  - Code_Char_chr like Code_Char, but also offers treatment of character
92dfacb32053 class div inherits from class times
haftmann
parents: 24950
diff changeset
   888
    codes; includes Code_Integer.
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   889
  - Executable_Set allows to generate code for finite sets using lists.
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   890
  - Executable_Rat implements rational numbers as triples (sign, enumerator,
23850
f1434532a562 updated
haftmann
parents: 23783
diff changeset
   891
    denominator).
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   892
  - Executable_Real implements a subset of real numbers, namly those
23850
f1434532a562 updated
haftmann
parents: 23783
diff changeset
   893
    representable by rational numbers.
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   894
  - Efficient_Nat implements natural numbers by integers, which in general will
23850
f1434532a562 updated
haftmann
parents: 23783
diff changeset
   895
    result in higher efficency; pattern matching with 0/Suc is eliminated;
24993
92dfacb32053 class div inherits from class times
haftmann
parents: 24950
diff changeset
   896
    includes Code_Integer.
92dfacb32053 class div inherits from class times
haftmann
parents: 24950
diff changeset
   897
  - Code_Index provides an additional datatype index which is mapped to
92dfacb32053 class div inherits from class times
haftmann
parents: 24950
diff changeset
   898
    target-language built-in integers.
92dfacb32053 class div inherits from class times
haftmann
parents: 24950
diff changeset
   899
  - Code_Message provides an additional datatype message_string} which is isomorphic to
92dfacb32053 class div inherits from class times
haftmann
parents: 24950
diff changeset
   900
    strings; messages are mapped to target-language strings.
23850
f1434532a562 updated
haftmann
parents: 23783
diff changeset
   901
23783
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   902
* New package for inductive predicates
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   903
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   904
  An n-ary predicate p with m parameters z_1, ..., z_m can now be defined via
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   905
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   906
    inductive
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   907
      p :: "U_1 => ... => U_m => T_1 => ... => T_n => bool"
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   908
      for z_1 :: U_1 and ... and z_n :: U_m
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   909
    where
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   910
      rule_1: "... ==> p z_1 ... z_m t_1_1 ... t_1_n"
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   911
    | ...
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   912
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   913
  with full support for type-inference, rather than
23783
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   914
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   915
    consts s :: "U_1 => ... => U_m => (T_1 * ... * T_n) set"
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   916
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   917
    abbreviation p :: "U_1 => ... => U_m => T_1 => ... => T_n => bool"
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   918
    where "p z_1 ... z_m x_1 ... x_n == (x_1, ..., x_n) : s z_1 ... z_m"
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   919
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   920
    inductive "s z_1 ... z_m"
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   921
    intros
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   922
      rule_1: "... ==> (t_1_1, ..., t_1_n) : s z_1 ... z_m"
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   923
      ...
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   924
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   925
  For backward compatibility, there is a wrapper allowing inductive
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   926
  sets to be defined with the new package via
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   927
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   928
    inductive_set
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   929
      s :: "U_1 => ... => U_m => (T_1 * ... * T_n) set"
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   930
      for z_1 :: U_1 and ... and z_n :: U_m
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   931
    where
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   932
      rule_1: "... ==> (t_1_1, ..., t_1_n) : s z_1 ... z_m"
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   933
    | ...
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   934
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   935
  or
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   936
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   937
    inductive_set
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   938
      s :: "U_1 => ... => U_m => (T_1 * ... * T_n) set"
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   939
      and p :: "U_1 => ... => U_m => T_1 => ... => T_n => bool"
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   940
      for z_1 :: U_1 and ... and z_n :: U_m
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   941
    where
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   942
      "p z_1 ... z_m x_1 ... x_n == (x_1, ..., x_n) : s z_1 ... z_m"
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   943
    | rule_1: "... ==> p z_1 ... z_m t_1_1 ... t_1_n"
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   944
    | ...
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   945
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   946
  if the additional syntax "p ..." is required.
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   947
25177
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
   948
  Numerous examples can be found in the subdirectories src/HOL/Auth,
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
   949
  src/HOL/Bali, src/HOL/Induct, and src/HOL/MicroJava.
23783
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   950
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   951
  INCOMPATIBILITIES:
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   952
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   953
  - Since declaration and definition of inductive sets or predicates
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   954
    is no longer separated, abbreviations involving the newly
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   955
    introduced sets or predicates must be specified together with the
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   956
    introduction rules after the 'where' keyword (see above), rather
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   957
    than before the actual inductive definition.
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   958
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   959
  - The variables in induction and elimination rules are now
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   960
    quantified in the order of their occurrence in the introduction
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   961
    rules, rather than in alphabetical order. Since this may break
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   962
    some proofs, these proofs either have to be repaired, e.g. by
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   963
    reordering the variables a_i_1 ... a_i_{k_i} in Isar 'case'
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   964
    statements of the form
23783
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   965
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   966
      case (rule_i a_i_1 ... a_i_{k_i})
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   967
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   968
    or the old order of quantification has to be restored by explicitly adding
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   969
    meta-level quantifiers in the introduction rules, i.e.
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   970
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   971
      | rule_i: "!!a_i_1 ... a_i_{k_i}. ... ==> p z_1 ... z_m t_i_1 ... t_i_n"
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   972
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   973
  - The format of the elimination rules is now
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   974
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   975
      p z_1 ... z_m x_1 ... x_n ==>
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   976
        (!!a_1_1 ... a_1_{k_1}. x_1 = t_1_1 ==> ... ==> x_n = t_1_n ==> ... ==> P)
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   977
        ==> ... ==> P
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   978
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   979
    for predicates and
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   980
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   981
      (x_1, ..., x_n) : s z_1 ... z_m ==>
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   982
        (!!a_1_1 ... a_1_{k_1}. x_1 = t_1_1 ==> ... ==> x_n = t_1_n ==> ... ==> P)
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   983
        ==> ... ==> P
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   984
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   985
    for sets rather than
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   986
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   987
      x : s z_1 ... z_m ==>
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   988
        (!!a_1_1 ... a_1_{k_1}. x = (t_1_1, ..., t_1_n) ==> ... ==> P)
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   989
        ==> ... ==> P
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   990
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   991
    This may require terms in goals to be expanded to n-tuples
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   992
    (e.g. using case_tac or simplification with the split_paired_all
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   993
    rule) before the above elimination rule is applicable.
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   994
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   995
  - The elimination or case analysis rules for (mutually) inductive
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   996
    sets or predicates are now called "p_1.cases" ... "p_k.cases". The
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   997
    list of rules "p_1_..._p_k.elims" is no longer available.
23783
e4d514f81d95 Added entry for new inductive definition package.
berghofe
parents: 23565
diff changeset
   998
25198
1e904070e9cb added NEWS entry for function package
krauss
parents: 25184
diff changeset
   999
* New package "function"/"fun" for general recursive functions,
1e904070e9cb added NEWS entry for function package
krauss
parents: 25184
diff changeset
  1000
supporting mutual and nested recursion, definitions in local contexts,
1e904070e9cb added NEWS entry for function package
krauss
parents: 25184
diff changeset
  1001
more general pattern matching and partiality. See HOL/ex/Fundefs.thy
1e904070e9cb added NEWS entry for function package
krauss
parents: 25184
diff changeset
  1002
for small examples, and the separate tutorial on the function
1e904070e9cb added NEWS entry for function package
krauss
parents: 25184
diff changeset
  1003
package. The old recdef "package" is still available as before, but
1e904070e9cb added NEWS entry for function package
krauss
parents: 25184
diff changeset
  1004
users are encouraged to use the new package.
1e904070e9cb added NEWS entry for function package
krauss
parents: 25184
diff changeset
  1005
1e904070e9cb added NEWS entry for function package
krauss
parents: 25184
diff changeset
  1006
* Method "lexicographic_order" automatically synthesizes termination
1e904070e9cb added NEWS entry for function package
krauss
parents: 25184
diff changeset
  1007
relations as lexicographic combinations of size measures. 
1e904070e9cb added NEWS entry for function package
krauss
parents: 25184
diff changeset
  1008
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1009
* Case-expressions allow arbitrary constructor-patterns (including
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1010
"_") and take their order into account, like in functional
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1011
programming.  Internally, this is translated into nested
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1012
case-expressions; missing cases are added and mapped to the predefined
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1013
constant "undefined". In complicated cases printing may no longer show
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1014
the original input but the internal form. Lambda-abstractions allow
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1015
the same form of pattern matching: "% pat1 => e1 | ..." is an
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1016
abbreviation for "%x. case x of pat1 => e1 | ..." where x is a new
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1017
variable.
23564
ae0e735fbec8 *** empty log message ***
nipkow
parents: 23562
diff changeset
  1018
23468
d27d79a47592 changed simp rules for of_nat
huffman
parents: 23449
diff changeset
  1019
* IntDef: The constant "int :: nat => int" has been removed; now "int"
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1020
is an abbreviation for "of_nat :: nat => int". The simplification
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1021
rules for "of_nat" have been changed to work like "int" did
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1022
previously.  Potential INCOMPATIBILITY:
23468
d27d79a47592 changed simp rules for of_nat
huffman
parents: 23449
diff changeset
  1023
  - "of_nat (Suc m)" simplifies to "1 + of_nat m" instead of "of_nat m + 1"
d27d79a47592 changed simp rules for of_nat
huffman
parents: 23449
diff changeset
  1024
  - of_nat_diff and of_nat_mult are no longer default simp rules
23377
197b6a39592c int abbreviates of_nat
huffman
parents: 23369
diff changeset
  1025
23295
86e225406859 Method "algebra" solves polynomial equations over (semi)rings
chaieb
parents: 23251
diff changeset
  1026
* Method "algebra" solves polynomial equations over (semi)rings using
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1027
Groebner bases. The (semi)ring structure is defined by locales and the
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1028
tool setup depends on that generic context. Installing the method for
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1029
a specific type involves instantiating the locale and possibly adding
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1030
declarations for computation on the coefficients.  The method is
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1031
already instantiated for natural numbers and for the axiomatic class
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1032
of idoms with numerals.  See also the paper by Chaieb and Wenzel at
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1033
CALCULEMUS 2007 for the general principles underlying this
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1034
architecture of context-aware proof-tools.
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1035
25033
2ef38332cc7e updated method "ferrack";
wenzelm
parents: 24996
diff changeset
  1036
* Method "ferrack" implements quantifier elimination over
2ef38332cc7e updated method "ferrack";
wenzelm
parents: 24996
diff changeset
  1037
special-purpose dense linear orders using locales (analogous to
2ef38332cc7e updated method "ferrack";
wenzelm
parents: 24996
diff changeset
  1038
"algebra"). The method is already installed for class
2ef38332cc7e updated method "ferrack";
wenzelm
parents: 24996
diff changeset
  1039
{ordered_field,recpower,number_ring} which subsumes real, hyperreal,
2ef38332cc7e updated method "ferrack";
wenzelm
parents: 24996
diff changeset
  1040
rat, etc.
2ef38332cc7e updated method "ferrack";
wenzelm
parents: 24996
diff changeset
  1041
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1042
* Former constant "List.op @" now named "List.append".  Use ML
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1043
antiquotations @{const_name List.append} or @{term " ... @ ... "} to
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1044
circumvent possible incompatibilities when working on ML level.
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1045
24996
ebd5f4cc7118 moved class power to theory Power
haftmann
parents: 24993
diff changeset
  1046
* primrec: missing cases mapped to "undefined" instead of "arbitrary".
22845
5f9138bcb3d7 changed code generator invocation syntax
haftmann
parents: 22826
diff changeset
  1047
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1048
* New function listsum :: 'a list => 'a for arbitrary monoids.
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1049
Special syntax: "SUM x <- xs. f x" (and latex variants)
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1050
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1051
* New syntax for Haskell-like list comprehension (input only), eg.
25177
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
  1052
[(x,y). x <- xs, y <- ys, x ~= y], see also src/HOL/List.thy.
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1053
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1054
* The special syntax for function "filter" has changed from [x :
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1055
xs. P] to [x <- xs. P] to avoid an ambiguity caused by list
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1056
comprehension syntax, and for uniformity.  INCOMPATIBILITY.
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1057
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1058
* [a..b] is now defined for arbitrary linear orders.  It used to be
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1059
defined on nat only, as an abbreviation for [a..<Suc b]
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1060
INCOMPATIBILITY.
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1061
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1062
* Renamed lemma "set_take_whileD"  to "set_takeWhileD".
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1063
25177
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
  1064
* New functions "sorted" and "sort" in src/HOL/List.thy.
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1065
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1066
* New lemma collection field_simps (an extension of ring_simps) for
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1067
manipulating (in)equations involving division. Multiplies with all
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1068
denominators that can be proved to be non-zero (in equations) or
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1069
positive/negative (in inequations).
23480
8d01ccdc3652 *** empty log message ***
nipkow
parents: 23478
diff changeset
  1070
8d01ccdc3652 *** empty log message ***
nipkow
parents: 23478
diff changeset
  1071
* Lemma collections ring_eq_simps, group_eq_simps and ring_distrib
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1072
have been improved and renamed to ring_simps, group_simps and
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1073
ring_distribs.  Removed lemmas field_xyz in theory Ring_and_Field
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1074
because they were subsumed by lemmas xyz.  INCOMPATIBILITY.
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1075
25177
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
  1076
* Theory Library/Commutative_Ring: switched from recdef to function
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1077
package; constants add, mul, pow now curried.  Infix syntax for
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1078
algebraic operations.
22735
cf627add250a code generator changes
haftmann
parents: 22450
diff changeset
  1079
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1080
* Dropped redundant lemma def_imp_eq in favor of meta_eq_to_obj_eq.
22218
30a8890d2967 dropped lemma duplicates in HOL.thy
haftmann
parents: 22152
diff changeset
  1081
INCOMPATIBILITY.
30a8890d2967 dropped lemma duplicates in HOL.thy
haftmann
parents: 22152
diff changeset
  1082
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1083
* Dropped redundant lemma if_def2 in favor of if_bool_eq_conj.
22218
30a8890d2967 dropped lemma duplicates in HOL.thy
haftmann
parents: 22152
diff changeset
  1084
INCOMPATIBILITY.
30a8890d2967 dropped lemma duplicates in HOL.thy
haftmann
parents: 22152
diff changeset
  1085
22126
wenzelm
parents: 22125
diff changeset
  1086
* HOL/records: generalised field-update to take a function on the
wenzelm
parents: 22125
diff changeset
  1087
field rather than the new value: r(|A := x|) is translated to A_update
wenzelm
parents: 22125
diff changeset
  1088
(K x) r The K-combinator that is internally used is called K_record.
21226
a607ae87ee81 field-update in records is generalised to take a function on the field
schirmer
parents: 21215
diff changeset
  1089
INCOMPATIBILITY: Usage of the plain update functions has to be
a607ae87ee81 field-update in records is generalised to take a function on the field
schirmer
parents: 21215
diff changeset
  1090
adapted.
a607ae87ee81 field-update in records is generalised to take a function on the field
schirmer
parents: 21215
diff changeset
  1091
 
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1092
* Class "semiring_0" now contains annihilation axioms x * 0 = 0 and 0
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1093
* x = 0, which are required for a semiring.  Richer structures do not
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1094
inherit from semiring_0 anymore, because this property is a theorem
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1095
there, not an axiom.  INCOMPATIBILITY: In instances of semiring_0,
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1096
there is more to prove, but this is mostly trivial.
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1097
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1098
* Class "recpower" is generalized to arbitrary monoids, not just
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1099
commutative semirings.  INCOMPATIBILITY: may need to incorporate
25163
haftmann
parents: 25148
diff changeset
  1100
commutativity or semiring properties additionally.
21215
7c9337a0e30a made locale partial_order compatible with axclass order
haftmann
parents: 21209
diff changeset
  1101
21099
6a0cdb6f72d3 (added entry)
haftmann
parents: 21056
diff changeset
  1102
* Constant "List.list_all2" in List.thy now uses authentic syntax.
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1103
INCOMPATIBILITY: translations containing list_all2 may go wrong,
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1104
better use 'abbreviation'.
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1105
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1106
* Renamed constant "List.op mem" to "List.member".  INCOMPATIBILITY.
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1107
22126
wenzelm
parents: 22125
diff changeset
  1108
* Numeral syntax: type 'bin' which was a mere type copy of 'int' has
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1109
been abandoned in favour of plain 'int'.  INCOMPATIBILITY --
22126
wenzelm
parents: 22125
diff changeset
  1110
significant changes for setting up numeral syntax for types:
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1111
  - New constants Numeral.pred and Numeral.succ instead
20485
3078fd2eec7b got rid of Numeral.bin type
haftmann
parents: 20453
diff changeset
  1112
      of former Numeral.bin_pred and Numeral.bin_succ.
3078fd2eec7b got rid of Numeral.bin type
haftmann
parents: 20453
diff changeset
  1113
  - Use integer operations instead of bin_add, bin_mult and so on.
3078fd2eec7b got rid of Numeral.bin type
haftmann
parents: 20453
diff changeset
  1114
  - Numeral simplification theorems named Numeral.numeral_simps instead of Bin_simps.
3078fd2eec7b got rid of Numeral.bin type
haftmann
parents: 20453
diff changeset
  1115
  - ML structure Bin_Simprocs now named Int_Numeral_Base_Simprocs.
3078fd2eec7b got rid of Numeral.bin type
haftmann
parents: 20453
diff changeset
  1116
25177
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
  1117
See src/HOL/Integ/IntArith.thy for an example setup.
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
  1118
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
  1119
* Command 'normal_form' computes the normal form of a term that may
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
  1120
contain free variables.  For example ``normal_form "rev [a, b, c]"''
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
  1121
produces ``[b, c, a]'' (without proof).  This command is suitable for
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
  1122
heavy-duty computations because the functions are compiled to ML
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
  1123
first.  Correspondingly, a method "normalization" is provided.  See
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
  1124
further src/HOL/ex/NormalForm.thy and src/Tools/nbe.ML.
19895
cab56c949350 *** empty log message ***
nipkow
parents: 19855
diff changeset
  1125
17996
71f250e05e05 * HOL: alternative iff syntax;
wenzelm
parents: 17991
diff changeset
  1126
* Alternative iff syntax "A <-> B" for equality on bool (with priority
71f250e05e05 * HOL: alternative iff syntax;
wenzelm
parents: 17991
diff changeset
  1127
25 like -->); output depends on the "iff" print_mode, the default is
71f250e05e05 * HOL: alternative iff syntax;
wenzelm
parents: 17991
diff changeset
  1128
"A = B" (with priority 50).
71f250e05e05 * HOL: alternative iff syntax;
wenzelm
parents: 17991
diff changeset
  1129
21265
b8db43faaf9e HOL: less/less_eq on bool, modified syntax;
wenzelm
parents: 21256
diff changeset
  1130
* Relations less (<) and less_eq (<=) are also available on type bool.
b8db43faaf9e HOL: less/less_eq on bool, modified syntax;
wenzelm
parents: 21256
diff changeset
  1131
Modified syntax to disallow nesting without explicit parentheses,
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1132
e.g. "(x < y) < z" or "x < (y < z)", but NOT "x < y < z".  Potential
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1133
INCOMPATIBILITY.
21265
b8db43faaf9e HOL: less/less_eq on bool, modified syntax;
wenzelm
parents: 21256
diff changeset
  1134
18674
98d380757893 *** empty log message ***
nipkow
parents: 18644
diff changeset
  1135
* "LEAST x:A. P" expands to "LEAST x. x:A & P" (input only).
98d380757893 *** empty log message ***
nipkow
parents: 18644
diff changeset
  1136
20716
a6686a8e1b68 Changed precedence of "op O" (relation composition) from 60 to 75.
krauss
parents: 20712
diff changeset
  1137
* Relation composition operator "op O" now has precedence 75 and binds
a6686a8e1b68 Changed precedence of "op O" (relation composition) from 60 to 75.
krauss
parents: 20712
diff changeset
  1138
stronger than union and intersection. INCOMPATIBILITY.
a6686a8e1b68 Changed precedence of "op O" (relation composition) from 60 to 75.
krauss
parents: 20712
diff changeset
  1139
22126
wenzelm
parents: 22125
diff changeset
  1140
* The old set interval syntax "{m..n(}" (and relatives) has been
wenzelm
parents: 22125
diff changeset
  1141
removed.  Use "{m..<n}" (and relatives) instead.
19377
1f717bd6b7ea *** empty log message ***
nipkow
parents: 19363
diff changeset
  1142
17865
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
  1143
* In the context of the assumption "~(s = t)" the Simplifier rewrites
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1144
"t = s" to False (by simproc "neq").  INCOMPATIBILITY, consider using
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1145
``declare [[simproc del: neq]]''.
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1146
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1147
* Simplifier: "m dvd n" where m and n are numbers is evaluated to
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1148
True/False.
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1149
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1150
* Theorem Cons_eq_map_conv no longer declared as "simp".
19211
307dfa3f9e66 *** empty log message ***
nipkow
parents: 19088
diff changeset
  1151
19279
48b527d0331b Renamed setsum_mult to setsum_right_distrib.
ballarin
parents: 19277
diff changeset
  1152
* Theorem setsum_mult renamed to setsum_right_distrib.
48b527d0331b Renamed setsum_mult to setsum_right_distrib.
ballarin
parents: 19277
diff changeset
  1153
19211
307dfa3f9e66 *** empty log message ***
nipkow
parents: 19088
diff changeset
  1154
* Prefer ex1I over ex_ex1I in single-step reasoning, e.g. by the
22126
wenzelm
parents: 22125
diff changeset
  1155
``rule'' method.
wenzelm
parents: 22125
diff changeset
  1156
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1157
* Reimplemented methods "sat" and "satx", with several improvements:
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1158
goals no longer need to be stated as "<prems> ==> False", equivalences
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1159
(i.e. "=" on type bool) are handled, variable names of the form
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1160
"lit_<n>" are no longer reserved, significant speedup.
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1161
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1162
* Methods "sat" and "satx" can now replay MiniSat proof traces.
22126
wenzelm
parents: 22125
diff changeset
  1163
zChaff is still supported as well.
wenzelm
parents: 22125
diff changeset
  1164
wenzelm
parents: 22125
diff changeset
  1165
* 'inductive' and 'datatype': provide projections of mutual rules,
wenzelm
parents: 22125
diff changeset
  1166
bundled as foo_bar.inducts;
wenzelm
parents: 22125
diff changeset
  1167
wenzelm
parents: 22125
diff changeset
  1168
* Library: moved theories Parity, GCD, Binomial, Infinite_Set to
wenzelm
parents: 22125
diff changeset
  1169
Library.
21256
47195501ecf7 moved theories Parity, GCD, Binomial to Library;
wenzelm
parents: 21241
diff changeset
  1170
47195501ecf7 moved theories Parity, GCD, Binomial to Library;
wenzelm
parents: 21241
diff changeset
  1171
* Library: moved theory Accessible_Part to main HOL.
19572
a4b3176f19dd * Library: theory Accessible_Part has been move to main HOL.
wenzelm
parents: 19508
diff changeset
  1172
18446
wenzelm
parents: 18422
diff changeset
  1173
* Library: added theory Coinductive_List of potentially infinite lists
wenzelm
parents: 18422
diff changeset
  1174
as greatest fixed-point.
18399
651438736fa1 Provers/induct: coinduct;
wenzelm
parents: 18370
diff changeset
  1175
19254
efaf5d47049e Pure: no_translations;
wenzelm
parents: 19252
diff changeset
  1176
* Library: added theory AssocList which implements (finite) maps as
19252
1f7c69a5faac entry for Library/AssocList
schirmer
parents: 19240
diff changeset
  1177
association lists.
17809
195045659c06 Tactics sat and satx reimplemented, several improvements
webertj
parents: 17806
diff changeset
  1178
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1179
* Method "evaluation" solves goals (i.e. a boolean expression)
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1180
efficiently by compiling it to ML.  The goal is "proved" (via an
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1181
oracle) if it evaluates to True.
20807
wenzelm
parents: 20716
diff changeset
  1182
wenzelm
parents: 20716
diff changeset
  1183
* Linear arithmetic now splits certain operators (e.g. min, max, abs)
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1184
also when invoked by the simplifier.  This results in the Simplifier
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1185
being more powerful on arithmetic goals.  INCOMPATIBILITY.
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1186
Configuration option fast_arith_split_limit=0 recovers the old
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1187
behavior.
20217
25b068a99d2b linear arithmetic splits certain operators (e.g. min, max, abs)
webertj
parents: 20188
diff changeset
  1188
22126
wenzelm
parents: 22125
diff changeset
  1189
* Support for hex (0x20) and binary (0b1001) numerals.
19254
efaf5d47049e Pure: no_translations;
wenzelm
parents: 19252
diff changeset
  1190
20807
wenzelm
parents: 20716
diff changeset
  1191
* New method: reify eqs (t), where eqs are equations for an
wenzelm
parents: 20716
diff changeset
  1192
interpretation I :: 'a list => 'b => 'c and t::'c is an optional
wenzelm
parents: 20716
diff changeset
  1193
parameter, computes a term s::'b and a list xs::'a list and proves the
wenzelm
parents: 20716
diff changeset
  1194
theorem I xs s = t. This is also known as reification or quoting. The
wenzelm
parents: 20716
diff changeset
  1195
resulting theorem is applied to the subgoal to substitute t with I xs
wenzelm
parents: 20716
diff changeset
  1196
s.  If t is omitted, the subgoal itself is reified.
wenzelm
parents: 20716
diff changeset
  1197
wenzelm
parents: 20716
diff changeset
  1198
* New method: reflection corr_thm eqs (t). The parameters eqs and (t)
wenzelm
parents: 20716
diff changeset
  1199
are as explained above. corr_thm is a theorem for I vs (f t) = I vs t,
wenzelm
parents: 20716
diff changeset
  1200
where f is supposed to be a computable function (in the sense of code
wenzelm
parents: 20716
diff changeset
  1201
generattion). The method uses reify to compute s and xs as above then
wenzelm
parents: 20716
diff changeset
  1202
applies corr_thm and uses normalization by evaluation to "prove" f s =
wenzelm
parents: 20716
diff changeset
  1203
r and finally gets the theorem t = r, which is again applied to the
25177
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
  1204
subgoal. An Example is available in src/HOL/ex/ReflectionEx.thy.
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
  1205
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
  1206
* Reflection: Automatic reification now handels binding, an example is
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
  1207
available in src/HOL/ex/ReflectionEx.thy
20807
wenzelm
parents: 20716
diff changeset
  1208
25397
82deaaba928d * HOL-Statespace;
wenzelm
parents: 25199
diff changeset
  1209
* HOL-Statespace: ``State Spaces: The Locale Way'' introduces a
25409
b87196bb57da fixed typo;
schirmer
parents: 25397
diff changeset
  1210
command 'statespace' that is similar to 'record', but introduces an
25397
82deaaba928d * HOL-Statespace;
wenzelm
parents: 25199
diff changeset
  1211
abstract specification based on the locale infrastructure instead of
82deaaba928d * HOL-Statespace;
wenzelm
parents: 25199
diff changeset
  1212
HOL types.  This leads to extra flexibility in composing state spaces,
82deaaba928d * HOL-Statespace;
wenzelm
parents: 25199
diff changeset
  1213
in particular multiple inheritance and renaming of components.
82deaaba928d * HOL-Statespace;
wenzelm
parents: 25199
diff changeset
  1214
82deaaba928d * HOL-Statespace;
wenzelm
parents: 25199
diff changeset
  1215
19653
39c37e16f748 * Pure/library: divide_and_conquer;
wenzelm
parents: 19625
diff changeset
  1216
*** HOL-Complex ***
39c37e16f748 * Pure/library: divide_and_conquer;
wenzelm
parents: 19625
diff changeset
  1217
22971
a6812b6a36a5 root and sqrt on negative inputs
huffman
parents: 22965
diff changeset
  1218
* Hyperreal: Functions root and sqrt are now defined on negative real
a6812b6a36a5 root and sqrt on negative inputs
huffman
parents: 22965
diff changeset
  1219
inputs so that root n (- x) = - root n x and sqrt (- x) = - sqrt x.
a6812b6a36a5 root and sqrt on negative inputs
huffman
parents: 22965
diff changeset
  1220
Nonnegativity side conditions have been removed from many lemmas, so
a6812b6a36a5 root and sqrt on negative inputs
huffman
parents: 22965
diff changeset
  1221
that more subgoals may now be solved by simplification; potential
a6812b6a36a5 root and sqrt on negative inputs
huffman
parents: 22965
diff changeset
  1222
INCOMPATIBILITY.
a6812b6a36a5 root and sqrt on negative inputs
huffman
parents: 22965
diff changeset
  1223
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1224
* Real: new type classes formalize real normed vector spaces and
21791
367477e8458b additions to HOL-Complex
huffman
parents: 21735
diff changeset
  1225
algebras, using new overloaded constants scaleR :: real => 'a => 'a
367477e8458b additions to HOL-Complex
huffman
parents: 21735
diff changeset
  1226
and norm :: 'a => real.
367477e8458b additions to HOL-Complex
huffman
parents: 21735
diff changeset
  1227
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1228
* Real: constant of_real :: real => 'a::real_algebra_1 injects from
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1229
reals into other types. The overloaded constant Reals :: 'a set is now
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1230
defined as range of_real; potential INCOMPATIBILITY.
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1231
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1232
* Real: proper support for ML code generation, including 'quickcheck'.
23013
c38c9039dc13 *** empty log message ***
nipkow
parents: 22997
diff changeset
  1233
Reals are implemented as arbitrary precision rationals.
c38c9039dc13 *** empty log message ***
nipkow
parents: 22997
diff changeset
  1234
22126
wenzelm
parents: 22125
diff changeset
  1235
* Hyperreal: Several constants that previously worked only for the
wenzelm
parents: 22125
diff changeset
  1236
reals have been generalized, so they now work over arbitrary vector
wenzelm
parents: 22125
diff changeset
  1237
spaces. Type annotations may need to be added in some cases; potential
wenzelm
parents: 22125
diff changeset
  1238
INCOMPATIBILITY.
21791
367477e8458b additions to HOL-Complex
huffman
parents: 21735
diff changeset
  1239
22972
3e96b98d37c6 generalized sgn function to work on any real normed vector space
huffman
parents: 22971
diff changeset
  1240
  Infinitesimal  :: ('a::real_normed_vector) star set
3e96b98d37c6 generalized sgn function to work on any real normed vector space
huffman
parents: 22971
diff changeset
  1241
  HFinite        :: ('a::real_normed_vector) star set
3e96b98d37c6 generalized sgn function to work on any real normed vector space
huffman
parents: 22971
diff changeset
  1242
  HInfinite      :: ('a::real_normed_vector) star set
21791
367477e8458b additions to HOL-Complex
huffman
parents: 21735
diff changeset
  1243
  approx         :: ('a::real_normed_vector) star => 'a star => bool
367477e8458b additions to HOL-Complex
huffman
parents: 21735
diff changeset
  1244
  monad          :: ('a::real_normed_vector) star => 'a star set
367477e8458b additions to HOL-Complex
huffman
parents: 21735
diff changeset
  1245
  galaxy         :: ('a::real_normed_vector) star => 'a star set
22972
3e96b98d37c6 generalized sgn function to work on any real normed vector space
huffman
parents: 22971
diff changeset
  1246
  (NS)LIMSEQ     :: [nat => 'a::real_normed_vector, 'a] => bool
21791
367477e8458b additions to HOL-Complex
huffman
parents: 21735
diff changeset
  1247
  (NS)convergent :: (nat => 'a::real_normed_vector) => bool
367477e8458b additions to HOL-Complex
huffman
parents: 21735
diff changeset
  1248
  (NS)Bseq       :: (nat => 'a::real_normed_vector) => bool
367477e8458b additions to HOL-Complex
huffman
parents: 21735
diff changeset
  1249
  (NS)Cauchy     :: (nat => 'a::real_normed_vector) => bool
367477e8458b additions to HOL-Complex
huffman
parents: 21735
diff changeset
  1250
  (NS)LIM        :: ['a::real_normed_vector => 'b::real_normed_vector, 'a, 'b] => bool
367477e8458b additions to HOL-Complex
huffman
parents: 21735
diff changeset
  1251
  is(NS)Cont     :: ['a::real_normed_vector => 'b::real_normed_vector, 'a] => bool
367477e8458b additions to HOL-Complex
huffman
parents: 21735
diff changeset
  1252
  deriv          :: ['a::real_normed_field => 'a, 'a, 'a] => bool
22972
3e96b98d37c6 generalized sgn function to work on any real normed vector space
huffman
parents: 22971
diff changeset
  1253
  sgn            :: 'a::real_normed_vector => 'a
23116
16e1401afe91 Complex: generalized type of exp
huffman
parents: 23104
diff changeset
  1254
  exp            :: 'a::{recpower,real_normed_field,banach} => 'a
21791
367477e8458b additions to HOL-Complex
huffman
parents: 21735
diff changeset
  1255
367477e8458b additions to HOL-Complex
huffman
parents: 21735
diff changeset
  1256
* Complex: Some complex-specific constants are now abbreviations for
22126
wenzelm
parents: 22125
diff changeset
  1257
overloaded ones: complex_of_real = of_real, cmod = norm, hcmod =
wenzelm
parents: 22125
diff changeset
  1258
hnorm.  Other constants have been entirely removed in favor of the
wenzelm
parents: 22125
diff changeset
  1259
polymorphic versions (INCOMPATIBILITY):
21791
367477e8458b additions to HOL-Complex
huffman
parents: 21735
diff changeset
  1260
367477e8458b additions to HOL-Complex
huffman
parents: 21735
diff changeset
  1261
  approx        <-- capprox
367477e8458b additions to HOL-Complex
huffman
parents: 21735
diff changeset
  1262
  HFinite       <-- CFinite
367477e8458b additions to HOL-Complex
huffman
parents: 21735
diff changeset
  1263
  HInfinite     <-- CInfinite
367477e8458b additions to HOL-Complex
huffman
parents: 21735
diff changeset
  1264
  Infinitesimal <-- CInfinitesimal
367477e8458b additions to HOL-Complex
huffman
parents: 21735
diff changeset
  1265
  monad         <-- cmonad
367477e8458b additions to HOL-Complex
huffman
parents: 21735
diff changeset
  1266
  galaxy        <-- cgalaxy
367477e8458b additions to HOL-Complex
huffman
parents: 21735
diff changeset
  1267
  (NS)LIM       <-- (NS)CLIM, (NS)CRLIM
367477e8458b additions to HOL-Complex
huffman
parents: 21735
diff changeset
  1268
  is(NS)Cont    <-- is(NS)Contc, is(NS)contCR
367477e8458b additions to HOL-Complex
huffman
parents: 21735
diff changeset
  1269
  (ns)deriv     <-- (ns)cderiv
367477e8458b additions to HOL-Complex
huffman
parents: 21735
diff changeset
  1270
19653
39c37e16f748 * Pure/library: divide_and_conquer;
wenzelm
parents: 19625
diff changeset
  1271
24801
f53f6b08e13a misc tuning and update;
wenzelm
parents: 24800
diff changeset
  1272
*** HOL-Algebra ***
f53f6b08e13a misc tuning and update;
wenzelm
parents: 24800
diff changeset
  1273
f53f6b08e13a misc tuning and update;
wenzelm
parents: 24800
diff changeset
  1274
* Formalisation of ideals and the quotient construction over rings.
f53f6b08e13a misc tuning and update;
wenzelm
parents: 24800
diff changeset
  1275
f53f6b08e13a misc tuning and update;
wenzelm
parents: 24800
diff changeset
  1276
* Order and lattice theory no longer based on records.
f53f6b08e13a misc tuning and update;
wenzelm
parents: 24800
diff changeset
  1277
INCOMPATIBILITY.
f53f6b08e13a misc tuning and update;
wenzelm
parents: 24800
diff changeset
  1278
f53f6b08e13a misc tuning and update;
wenzelm
parents: 24800
diff changeset
  1279
* Renamed lemmas least_carrier -> least_closed and greatest_carrier ->
f53f6b08e13a misc tuning and update;
wenzelm
parents: 24800
diff changeset
  1280
greatest_closed.  INCOMPATIBILITY.
f53f6b08e13a misc tuning and update;
wenzelm
parents: 24800
diff changeset
  1281
f53f6b08e13a misc tuning and update;
wenzelm
parents: 24800
diff changeset
  1282
* Method algebra is now set up via an attribute.  For examples see
f53f6b08e13a misc tuning and update;
wenzelm
parents: 24800
diff changeset
  1283
Ring.thy.  INCOMPATIBILITY: the method is now weaker on combinations
f53f6b08e13a misc tuning and update;
wenzelm
parents: 24800
diff changeset
  1284
of algebraic structures.
f53f6b08e13a misc tuning and update;
wenzelm
parents: 24800
diff changeset
  1285
f53f6b08e13a misc tuning and update;
wenzelm
parents: 24800
diff changeset
  1286
* Renamed theory CRing to Ring.
f53f6b08e13a misc tuning and update;
wenzelm
parents: 24800
diff changeset
  1287
f53f6b08e13a misc tuning and update;
wenzelm
parents: 24800
diff changeset
  1288
f53f6b08e13a misc tuning and update;
wenzelm
parents: 24800
diff changeset
  1289
*** HOL-Nominal ***
f53f6b08e13a misc tuning and update;
wenzelm
parents: 24800
diff changeset
  1290
25148
9c9646c1080d tuned Nominal entry;
wenzelm
parents: 25142
diff changeset
  1291
* Substantial, yet incomplete support for nominal datatypes (binding
25177
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
  1292
structures) based on HOL-Nominal logic.  See src/HOL/Nominal and
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
  1293
src/HOL/Nominal/Examples.  Prospective users should consult
25148
9c9646c1080d tuned Nominal entry;
wenzelm
parents: 25142
diff changeset
  1294
http://isabelle.in.tum.de/nominal/
9c9646c1080d tuned Nominal entry;
wenzelm
parents: 25142
diff changeset
  1295
24801
f53f6b08e13a misc tuning and update;
wenzelm
parents: 24800
diff changeset
  1296
17878
wenzelm
parents: 17869
diff changeset
  1297
*** ML ***
wenzelm
parents: 17869
diff changeset
  1298
24643
d5e4b170d132 * ML: just one true type int;
wenzelm
parents: 24636
diff changeset
  1299
* ML basics: just one true type int, which coincides with IntInf.int
d5e4b170d132 * ML: just one true type int;
wenzelm
parents: 24636
diff changeset
  1300
(even on SML/NJ).
d5e4b170d132 * ML: just one true type int;
wenzelm
parents: 24636
diff changeset
  1301
22138
b9cbcd8be40f * ML within Isar: antiquotations;
wenzelm
parents: 22126
diff changeset
  1302
* ML within Isar: antiquotations allow to embed statically-checked
b9cbcd8be40f * ML within Isar: antiquotations;
wenzelm
parents: 22126
diff changeset
  1303
formal entities in the source, referring to the context available at
b9cbcd8be40f * ML within Isar: antiquotations;
wenzelm
parents: 22126
diff changeset
  1304
compile-time.  For example:
b9cbcd8be40f * ML within Isar: antiquotations;
wenzelm
parents: 22126
diff changeset
  1305
25142
57c717b9dd59 added @{sort}, @{type_syntax} antiquotations;
wenzelm
parents: 25129
diff changeset
  1306
ML {* @{sort "{zero,one}"} *}
22138
b9cbcd8be40f * ML within Isar: antiquotations;
wenzelm
parents: 22126
diff changeset
  1307
ML {* @{typ "'a => 'b"} *}
b9cbcd8be40f * ML within Isar: antiquotations;
wenzelm
parents: 22126
diff changeset
  1308
ML {* @{term "%x. x"} *}
b9cbcd8be40f * ML within Isar: antiquotations;
wenzelm
parents: 22126
diff changeset
  1309
ML {* @{prop "x == y"} *}
b9cbcd8be40f * ML within Isar: antiquotations;
wenzelm
parents: 22126
diff changeset
  1310
ML {* @{ctyp "'a => 'b"} *}
b9cbcd8be40f * ML within Isar: antiquotations;
wenzelm
parents: 22126
diff changeset
  1311
ML {* @{cterm "%x. x"} *}
b9cbcd8be40f * ML within Isar: antiquotations;
wenzelm
parents: 22126
diff changeset
  1312
ML {* @{cprop "x == y"} *}
b9cbcd8be40f * ML within Isar: antiquotations;
wenzelm
parents: 22126
diff changeset
  1313
ML {* @{thm asm_rl} *}
b9cbcd8be40f * ML within Isar: antiquotations;
wenzelm
parents: 22126
diff changeset
  1314
ML {* @{thms asm_rl} *}
24692
a5d89a87e8e3 more ML antiqs;
wenzelm
parents: 24649
diff changeset
  1315
ML {* @{type_name c} *}
25142
57c717b9dd59 added @{sort}, @{type_syntax} antiquotations;
wenzelm
parents: 25129
diff changeset
  1316
ML {* @{type_syntax c} *}
22376
b711c2ad7507 added @{const_name}, @{const_syntax};
wenzelm
parents: 22316
diff changeset
  1317
ML {* @{const_name c} *}
b711c2ad7507 added @{const_name}, @{const_syntax};
wenzelm
parents: 22316
diff changeset
  1318
ML {* @{const_syntax c} *}
22138
b9cbcd8be40f * ML within Isar: antiquotations;
wenzelm
parents: 22126
diff changeset
  1319
ML {* @{context} *}
b9cbcd8be40f * ML within Isar: antiquotations;
wenzelm
parents: 22126
diff changeset
  1320
ML {* @{theory} *}
b9cbcd8be40f * ML within Isar: antiquotations;
wenzelm
parents: 22126
diff changeset
  1321
ML {* @{theory Pure} *}
24692
a5d89a87e8e3 more ML antiqs;
wenzelm
parents: 24649
diff changeset
  1322
ML {* @{theory_ref} *}
a5d89a87e8e3 more ML antiqs;
wenzelm
parents: 24649
diff changeset
  1323
ML {* @{theory_ref Pure} *}
22138
b9cbcd8be40f * ML within Isar: antiquotations;
wenzelm
parents: 22126
diff changeset
  1324
ML {* @{simpset} *}
b9cbcd8be40f * ML within Isar: antiquotations;
wenzelm
parents: 22126
diff changeset
  1325
ML {* @{claset} *}
b9cbcd8be40f * ML within Isar: antiquotations;
wenzelm
parents: 22126
diff changeset
  1326
ML {* @{clasimpset} *}
b9cbcd8be40f * ML within Isar: antiquotations;
wenzelm
parents: 22126
diff changeset
  1327
22151
wenzelm
parents: 22138
diff changeset
  1328
The same works for sources being ``used'' within an Isar context.
wenzelm
parents: 22138
diff changeset
  1329
22152
df787d582323 * ML in Isar: improved error reporting;
wenzelm
parents: 22151
diff changeset
  1330
* ML in Isar: improved error reporting; extra verbosity with
24706
c58547ff329b * Pure/Syntax: generic interfaces for parsing and type checking;
wenzelm
parents: 24699
diff changeset
  1331
ML_Context.trace enabled.
22152
df787d582323 * ML in Isar: improved error reporting;
wenzelm
parents: 22151
diff changeset
  1332
19032
wenzelm
parents: 19006
diff changeset
  1333
* Pure/General/table.ML: the join operations now works via exceptions
24706
c58547ff329b * Pure/Syntax: generic interfaces for parsing and type checking;
wenzelm
parents: 24699
diff changeset
  1334
DUP/SAME instead of type option. This is simpler in simple cases, and
19081
085b5badb8de * Isar/locales: new derived specification elements 'definition', 'abbreviation', 'axiomatization';
wenzelm
parents: 19034
diff changeset
  1335
admits slightly more efficient complex applications.
18446
wenzelm
parents: 18422
diff changeset
  1336
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1337
* Pure: 'advanced' translation functions (parse_translation etc.) now
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1338
use Context.generic instead of just theory.
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1339
18642
6954633b6a76 * ML: generic context, data, attributes;
wenzelm
parents: 18601
diff changeset
  1340
* Pure: datatype Context.generic joins theory/Proof.context and
18644
wenzelm
parents: 18642
diff changeset
  1341
provides some facilities for code that works in either kind of
18642
6954633b6a76 * ML: generic context, data, attributes;
wenzelm
parents: 18601
diff changeset
  1342
context, notably GenericDataFun for uniform theory and proof data.
6954633b6a76 * ML: generic context, data, attributes;
wenzelm
parents: 18601
diff changeset
  1343
18737
78d6ae887f6e * ML: simplified type attribute;
wenzelm
parents: 18722
diff changeset
  1344
* Pure: simplified internal attribute type, which is now always
24706
c58547ff329b * Pure/Syntax: generic interfaces for parsing and type checking;
wenzelm
parents: 24699
diff changeset
  1345
Context.generic * thm -> Context.generic * thm. Global (theory) vs.
c58547ff329b * Pure/Syntax: generic interfaces for parsing and type checking;
wenzelm
parents: 24699
diff changeset
  1346
local (Proof.context) attributes have been discontinued, while
c58547ff329b * Pure/Syntax: generic interfaces for parsing and type checking;
wenzelm
parents: 24699
diff changeset
  1347
minimizing code duplication. Thm.rule_attribute and
c58547ff329b * Pure/Syntax: generic interfaces for parsing and type checking;
wenzelm
parents: 24699
diff changeset
  1348
Thm.declaration_attribute build canonical attributes; see also structure
c58547ff329b * Pure/Syntax: generic interfaces for parsing and type checking;
wenzelm
parents: 24699
diff changeset
  1349
Context for further operations on Context.generic, notably
c58547ff329b * Pure/Syntax: generic interfaces for parsing and type checking;
wenzelm
parents: 24699
diff changeset
  1350
GenericDataFun. INCOMPATIBILITY, need to adapt attribute type
19006
2427684c201c * ML/Pure: generic Args/Attrib syntax everywhere;
wenzelm
parents: 18979
diff changeset
  1351
declarations and definitions.
2427684c201c * ML/Pure: generic Args/Attrib syntax everywhere;
wenzelm
parents: 18979
diff changeset
  1352
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1353
* Context data interfaces (Theory/Proof/GenericDataFun): removed
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1354
name/print, uninitialized data defaults to ad-hoc copy of empty value,
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1355
init only required for impure data. INCOMPATIBILITY: empty really need
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1356
to be empty (no dependencies on theory content!)
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1357
19508
d5236f5b0a71 * Pure: axclasses now purely definitional;
wenzelm
parents: 19377
diff changeset
  1358
* Pure/kernel: consts certification ignores sort constraints given in
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1359
signature declarations. (This information is not relevant to the
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1360
logic, but only for type inference.) SIGNIFICANT INTERNAL CHANGE,
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1361
potential INCOMPATIBILITY.
19508
d5236f5b0a71 * Pure: axclasses now purely definitional;
wenzelm
parents: 19377
diff changeset
  1362
d5236f5b0a71 * Pure: axclasses now purely definitional;
wenzelm
parents: 19377
diff changeset
  1363
* Pure: axiomatic type classes are now purely definitional, with
d5236f5b0a71 * Pure: axclasses now purely definitional;
wenzelm
parents: 19377
diff changeset
  1364
explicit proofs of class axioms and super class relations performed
24706
c58547ff329b * Pure/Syntax: generic interfaces for parsing and type checking;
wenzelm
parents: 24699
diff changeset
  1365
internally. See Pure/axclass.ML for the main internal interfaces --
19508
d5236f5b0a71 * Pure: axclasses now purely definitional;
wenzelm
parents: 19377
diff changeset
  1366
notably AxClass.define_class supercedes AxClass.add_axclass, and
24706
c58547ff329b * Pure/Syntax: generic interfaces for parsing and type checking;
wenzelm
parents: 24699
diff changeset
  1367
AxClass.axiomatize_class/classrel/arity supersede
19508
d5236f5b0a71 * Pure: axclasses now purely definitional;
wenzelm
parents: 19377
diff changeset
  1368
Sign.add_classes/classrel/arities.
d5236f5b0a71 * Pure: axclasses now purely definitional;
wenzelm
parents: 19377
diff changeset
  1369
19006
2427684c201c * ML/Pure: generic Args/Attrib syntax everywhere;
wenzelm
parents: 18979
diff changeset
  1370
* Pure/Isar: Args/Attrib parsers operate on Context.generic --
2427684c201c * ML/Pure: generic Args/Attrib syntax everywhere;
wenzelm
parents: 18979
diff changeset
  1371
global/local versions on theory vs. Proof.context have been
2427684c201c * ML/Pure: generic Args/Attrib syntax everywhere;
wenzelm
parents: 18979
diff changeset
  1372
discontinued; Attrib.syntax and Method.syntax have been adapted
2427684c201c * ML/Pure: generic Args/Attrib syntax everywhere;
wenzelm
parents: 18979
diff changeset
  1373
accordingly.  INCOMPATIBILITY, need to adapt parser expressions for
2427684c201c * ML/Pure: generic Args/Attrib syntax everywhere;
wenzelm
parents: 18979
diff changeset
  1374
attributes, methods, etc.
18642
6954633b6a76 * ML: generic context, data, attributes;
wenzelm
parents: 18601
diff changeset
  1375
18446
wenzelm
parents: 18422
diff changeset
  1376
* Pure: several functions of signature "... -> theory -> theory * ..."
wenzelm
parents: 18422
diff changeset
  1377
have been reoriented to "... -> theory -> ... * theory" in order to
wenzelm
parents: 18422
diff changeset
  1378
allow natural usage in combination with the ||>, ||>>, |-> and
wenzelm
parents: 18422
diff changeset
  1379
fold_map combinators.
18051
dba086ed50cb nth_*, fold_index refined
haftmann
parents: 18044
diff changeset
  1380
21647
fccafa917a68 * Pure: official theorem names and additional comments are now strictly separate.
wenzelm
parents: 21595
diff changeset
  1381
* Pure: official theorem names (closed derivations) and additional
fccafa917a68 * Pure: official theorem names and additional comments are now strictly separate.
wenzelm
parents: 21595
diff changeset
  1382
comments (tags) are now strictly separate.  Name hints -- which are
fccafa917a68 * Pure: official theorem names and additional comments are now strictly separate.
wenzelm
parents: 21595
diff changeset
  1383
maintained as tags -- may be attached any time without affecting the
fccafa917a68 * Pure: official theorem names and additional comments are now strictly separate.
wenzelm
parents: 21595
diff changeset
  1384
derivation.
fccafa917a68 * Pure: official theorem names and additional comments are now strictly separate.
wenzelm
parents: 21595
diff changeset
  1385
18020
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
  1386
* Pure: primitive rule lift_rule now takes goal cterm instead of an
18145
6757627acf59 renamed Thm.cgoal_of to Thm.cprem_of;
wenzelm
parents: 18051
diff changeset
  1387
actual goal state (thm).  Use Thm.lift_rule (Thm.cprem_of st i) to
18020
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
  1388
achieve the old behaviour.
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
  1389
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
  1390
* Pure: the "Goal" constant is now called "prop", supporting a
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
  1391
slightly more general idea of ``protecting'' meta-level rule
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
  1392
statements.
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
  1393
20040
02c59ec2f2e1 * Pure: structure Variable provides operations for proper treatment of fixed/schematic variables;
wenzelm
parents: 20013
diff changeset
  1394
* Pure: Logic.(un)varify only works in a global context, which is now
02c59ec2f2e1 * Pure: structure Variable provides operations for proper treatment of fixed/schematic variables;
wenzelm
parents: 20013
diff changeset
  1395
enforced instead of silently assumed.  INCOMPATIBILITY, may use
02c59ec2f2e1 * Pure: structure Variable provides operations for proper treatment of fixed/schematic variables;
wenzelm
parents: 20013
diff changeset
  1396
Logic.legacy_(un)varify as temporary workaround.
02c59ec2f2e1 * Pure: structure Variable provides operations for proper treatment of fixed/schematic variables;
wenzelm
parents: 20013
diff changeset
  1397
20090
5cf221f2a55d * Pure: structure Name;
wenzelm
parents: 20067
diff changeset
  1398
* Pure: structure Name provides scalable operations for generating
5cf221f2a55d * Pure: structure Name;
wenzelm
parents: 20067
diff changeset
  1399
internal variable names, notably Name.variants etc.  This replaces
5cf221f2a55d * Pure: structure Name;
wenzelm
parents: 20067
diff changeset
  1400
some popular functions from term.ML:
5cf221f2a55d * Pure: structure Name;
wenzelm
parents: 20067
diff changeset
  1401
5cf221f2a55d * Pure: structure Name;
wenzelm
parents: 20067
diff changeset
  1402
  Term.variant		->  Name.variant
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1403
  Term.variantlist	->  Name.variant_list
20090
5cf221f2a55d * Pure: structure Name;
wenzelm
parents: 20067
diff changeset
  1404
  Term.invent_names	->  Name.invent_list
5cf221f2a55d * Pure: structure Name;
wenzelm
parents: 20067
diff changeset
  1405
5cf221f2a55d * Pure: structure Name;
wenzelm
parents: 20067
diff changeset
  1406
Note that low-level renaming rarely occurs in new code -- operations
5cf221f2a55d * Pure: structure Name;
wenzelm
parents: 20067
diff changeset
  1407
from structure Variable are used instead (see below).
5cf221f2a55d * Pure: structure Name;
wenzelm
parents: 20067
diff changeset
  1408
20040
02c59ec2f2e1 * Pure: structure Variable provides operations for proper treatment of fixed/schematic variables;
wenzelm
parents: 20013
diff changeset
  1409
* Pure: structure Variable provides fundamental operations for proper
02c59ec2f2e1 * Pure: structure Variable provides operations for proper treatment of fixed/schematic variables;
wenzelm
parents: 20013
diff changeset
  1410
treatment of fixed/schematic variables in a context.  For example,
02c59ec2f2e1 * Pure: structure Variable provides operations for proper treatment of fixed/schematic variables;
wenzelm
parents: 20013
diff changeset
  1411
Variable.import introduces fixes for schematics of given facts and
02c59ec2f2e1 * Pure: structure Variable provides operations for proper treatment of fixed/schematic variables;
wenzelm
parents: 20013
diff changeset
  1412
Variable.export reverses the effect (up to renaming) -- this replaces
02c59ec2f2e1 * Pure: structure Variable provides operations for proper treatment of fixed/schematic variables;
wenzelm
parents: 20013
diff changeset
  1413
various freeze_thaw operations.
02c59ec2f2e1 * Pure: structure Variable provides operations for proper treatment of fixed/schematic variables;
wenzelm
parents: 20013
diff changeset
  1414
18567
ecdd71518f33 * Pure/Isar: Toplevel.theory_theory_to_proof;
wenzelm
parents: 18557
diff changeset
  1415
* Pure: structure Goal provides simple interfaces for
17981
2602be0d99ae * Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents: 17918
diff changeset
  1416
init/conclude/finish and tactical prove operations (replacing former
20040
02c59ec2f2e1 * Pure: structure Variable provides operations for proper treatment of fixed/schematic variables;
wenzelm
parents: 20013
diff changeset
  1417
Tactic.prove).  Goal.prove is the canonical way to prove results
02c59ec2f2e1 * Pure: structure Variable provides operations for proper treatment of fixed/schematic variables;
wenzelm
parents: 20013
diff changeset
  1418
within a given context; Goal.prove_global is a degraded version for