NEWS
author nipkow
Mon, 23 May 2005 11:14:58 +0200
changeset 16042 8e15ff79851a
parent 16013 3010430d894d
child 16051 b6a945f205b7
permissions -rw-r--r--
tuned trace info (depth)
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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 release
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----------------------------
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*** General ***
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* Theory headers: the new header syntax for Isar theories is
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  theory <name>
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  imports <theory1> ... <theoryn>
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  begin
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  optionally also with a "files" section. The syntax
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  theory <name> = <theory1> + ... + <theoryn>:
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  will still be supported for some time but will eventually disappear.
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  The syntax of old-style theories has not changed.
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* Theory loader: parent theories can now also be referred to via
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  relative and absolute paths.
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* Provers/quasi.ML: new transitivity reasoners for transitivity only
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  and quasi orders.
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* Provers/trancl.ML: new transitivity reasoner for transitive and
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  reflexive-transitive closure of relations.
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* Provers/blast.ML: new reference depth_limit to make blast's depth
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  limit (previously hard-coded with a value of 20) user-definable.
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* Provers: new version of the subst method, for single-step rewriting: it now
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  works in bound variable contexts. New is subst (asm), for rewriting an
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  assumption. Thanks to Lucas Dixon! INCOMPATIBILITY: may rewrite a different
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  subterm than the original subst method, which is still available under the
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  name simplesubst.
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* Pure: thin_tac now works even if the assumption being deleted contains !! or ==>. 
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  More generally, erule now works even if the major premise of the elimination rule
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  contains !! or ==>.
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* Pure: considerably improved version of 'constdefs' command.  Now
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  performs automatic type-inference of declared constants; additional
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  support for local structure declarations (cf. locales and HOL
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  records), see also isar-ref manual.  Potential INCOMPATIBILITY: need
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  to observe strictly sequential dependencies of definitions within a
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  single 'constdefs' section; moreover, the declared name needs to be
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  an identifier.  If all fails, consider to fall back on 'consts' and
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  'defs' separately.
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* Pure: improved indexed syntax and implicit structures.  First of
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  all, indexed syntax provides a notational device for subscripted
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  application, using the new syntax \<^bsub>term\<^esub> for arbitrary
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  expressions.  Secondly, in a local context with structure
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  declarations, number indexes \<^sub>n or the empty index (default
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  number 1) refer to a certain fixed variable implicitly; option
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  show_structs controls printing of implicit structures.  Typical
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  applications of these concepts involve record types and locales.
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* Pure: clear separation of logical types and nonterminals, where the
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  latter may only occur in 'syntax' specifications or type
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  abbreviations.  Before that distinction was only partially
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  implemented via type class "logic" vs. "{}".  Potential
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  INCOMPATIBILITY in rare cases of improper use of 'types'/'consts'
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  instead of 'nonterminals'/'syntax'.  Some very exotic syntax
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  specifications may require further adaption (e.g. Cube/Base.thy).
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* Pure: removed obsolete type class "logic", use the top sort {}
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  instead.  Note that non-logical types should be declared as
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  'nonterminals' rather than 'types'.  INCOMPATIBILITY for new
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  object-logic specifications.
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* Pure: command 'no_syntax' removes grammar declarations (and
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  translations) resulting from the given syntax specification, which
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  is interpreted in the same manner as for the 'syntax' command.
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* Pure: print_tac now outputs the goal through the trace channel.
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* Pure: reference Namespace.unique_names included.  If true the
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  (shortest) namespace-prefix is printed to disambiguate conflicts (as
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  yet). If false the first entry wins (as during parsing). Default
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  value is true.
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* Pure: tuned internal renaming of symbolic identifiers -- attach
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  primes instead of base 26 numbers.
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* Pure: new flag show_question_marks controls printing of leading
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  question marks in schematic variable names.
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* Pure: new version of thms_containing that searches for a list of
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  criteria instead of a list of constants. Known criteria are: intro,
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  elim, dest, name:string, and any term. Criteria can be preceded by
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  '-' to select theorems that do not match. Intro, elim, dest select
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  theorems that match the current goal, name:s selects theorems whose
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  fully qualified name contain s.  Any other term is interpreted as
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  pattern and selects all theorem matching the pattern. Available in
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  ProofGeneral under ProofGeneral -> Find Theorems or C-c C-f.
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  Example: C-c C-f (100) "(_::nat) + _ + _" intro -name:"HOL."
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  prints the last 100 theorems matching the pattern "(_::nat) + _ + _",
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  matching the current goal as introduction rule and not having "HOL." 
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  in their name (i.e. not being defined in theory HOL).
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* Pure/Syntax: inner syntax includes (*(*nested*) comments*).
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* Pure/Syntax: pretty pinter now supports unbreakable blocks,
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  specified in mixfix annotations as "(00...)".
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* Pure/Syntax: 'advanced' translation functions (parse_translation
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  etc.) may depend on the signature of the theory context being
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  presently used for parsing/printing, see also isar-ref manual.
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* Pure/Simplifier: you can control the depth to which conditional rewriting
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  is traced via the PG menu Isabelle -> Settings -> Trace Simp Depth Limit.
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* Pure/Simplifier: simplification procedures may now take the current
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  simpset into account (cf. Simplifier.simproc(_i) / mk_simproc
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  interface), which is very useful for calling the Simplifier
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  recursively.  Minor INCOMPATIBILITY: the 'prems' argument of
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  simprocs is gone -- use prems_of_ss on the simpset instead.
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  Moreover, the low-level mk_simproc no longer applies Logic.varify
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  internally, to allow for use in a context of fixed variables.
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* Isar debugging: new reference Toplevel.debug; default false.  Set to
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  make printing of exceptions THM, TERM, TYPE and THEORY more verbose.
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* Locales:
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  - "includes" disallowed in declaration of named locales (command "locale").
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  - Fixed parameter management in theorem generation for goals with "includes".
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    INCOMPATIBILITY: rarely, the generated theorem statement is different.
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* Locales:  new commands for the interpretation of locale expressions
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  in theories (interpretation) and proof contexts (interpret).  These take an
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  instantiation of the locale parameters and compute proof obligations from
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  the instantiated specification.  After the obligations have been discharged,
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  the instantiated theorems of the locale are added to the theory or proof
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  context.  Interpretation is smart in that already active interpretations
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  do not occur in proof obligations, neither are instantiated theorems stored
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  in duplicate.
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  Use print_interps to inspect active interpretations of a particular locale.
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  For details, see the Isar Reference manual.
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* Locales: proper static binding of attribute syntax -- i.e. types /
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  terms / facts mentioned as arguments are always those of the locale
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  definition context, independently of the context of later
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  invocations.  Moreover, locale operations (renaming and type / term
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  instantiation) are applied to attribute arguments as expected.
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  INCOMPATIBILITY of the ML interface: always pass Attrib.src instead
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  of actual attributes; rare situations may require Attrib.attribute
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  to embed those attributes into Attrib.src that lack concrete syntax.
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  Attribute implementations need to cooperate properly with the static
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  binding mechanism.  Basic parsers Args.XXX_typ/term/prop and
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  Attrib.XXX_thm etc. already do the right thing without further
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  intervention.  Only unusual applications -- such as "where" or "of"
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  (cf. src/Pure/Isar/attrib.ML), which process arguments depending
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  both on the context and the facts involved -- may have to assign
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  parsed values to argument tokens explicitly.
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* Attributes 'induct' and 'cases': type or set names may now be
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  locally fixed variables as well.
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* Isar: new syntax 'name(i-j, i-, i, ...)' for referring to specific
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  selections of theorems in named facts via indices.
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* Pure: reorganized bootstrapping of the Pure theories; CPure is now
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  derived from Pure, which contains all common declarations already.
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  Both theories are defined via plain Isabelle/Isar .thy files.
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  INCOMPATIBILITY: elements of CPure (such as the CPure.intro /
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  CPure.elim / CPure.dest attributes) now appear in the Pure name
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  space; use isatool fixcpure to adapt your theory and ML sources.
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* Provers/simplifier.ML has been moved to Pure, where Simplifier.setup
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  is peformed already.  Object-logics merely need to finish their
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  initial simpset configuration as before.
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*** Document preparation ***
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* Several new antiquotation:
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  @{term_type term} prints a term with its type annotated;
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  @{typeof term} prints the type of a term;
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  @{const const} is the same as @{term const}, but checks
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    that the argument is a known logical constant;
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  @{term_style style term} and @{thm_style style thm} print a term or
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    theorem applying a "style" to it
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  Predefined styles are "lhs" and "rhs" printing the lhs/rhs of
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  definitions, equations, inequations etc. and "conclusion" printing
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  only the conclusion of a meta-logical statement theorem.  Styles may
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  be defined via TermStyle.add_style in ML.  See the "LaTeX Sugar"
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  document for more information.
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* Antiquotations now provide the option 'locale=NAME' to specify an
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  alternative context used for evaluating and printing the subsequent
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  argument, as in @{thm [locale=LC] fold_commute}, for example.
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* Commands 'display_drafts' and 'print_drafts' perform simple output
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  of raw sources.  Only those symbols that do not require additional
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  LaTeX packages (depending on comments in isabellesym.sty) are
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  displayed properly, everything else is left verbatim.  We use
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  isatool display and isatool print as front ends; these are subject
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  to the DVI/PDF_VIEWER and PRINT_COMMAND settings, respectively.
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* Proof scripts as well as some other commands such as ML or
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  parse/print_translation can now be hidden in the document.  Hiding
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  is enabled by default, and can be disabled either via the option '-H
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  false' of isatool usedir or by resetting the reference variable
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  IsarOutput.hide_commands. Additional commands to be hidden may be
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  declared using IsarOutput.add_hidden_commands.
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*** HOL ***
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* Datatype induction via method `induct' now preserves the name of the
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  induction variable. For example, when proving P(xs::'a list) by induction
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  on xs, the induction step is now P(xs) ==> P(a#xs) rather than
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  P(list) ==> P(a#list) as previously.
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* HOL/record: reimplementation of records. Improved scalability for
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  records with many fields, avoiding performance problems for type
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  inference. Records are no longer composed of nested field types, but
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  of nested extension types. Therefore the record type only grows
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  linear in the number of extensions and not in the number of fields.
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  The top-level (users) view on records is preserved.  Potential
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  INCOMPATIBILITY only in strange cases, where the theory depends on
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  the old record representation. The type generated for a record is
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  called <record_name>_ext_type.
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* HOL/record: Reference record_quick_and_dirty_sensitive can be
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  enabled to skip the proofs triggered by a record definition or a
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  simproc (if quick_and_dirty is enabled). Definitions of large
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  records can take quite long.
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* HOL/record: "record_upd_simproc" for simplification of multiple
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  record updates enabled by default.  Moreover, trivial updates are
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  also removed: r(|x := x r|) = r.  INCOMPATIBILITY: old proofs break
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  occasionally, since simplification is more powerful by default.
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* HOL: symbolic syntax of Hilbert Choice Operator is now as follows:
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  syntax (epsilon)
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    "_Eps" :: "[pttrn, bool] => 'a"    ("(3\<some>_./ _)" [0, 10] 10)
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  The symbol \<some> is displayed as the alternative epsilon of LaTeX
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  and x-symbol; use option '-m epsilon' to get it actually printed.
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  Moreover, the mathematically important symbolic identifier
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  \<epsilon> becomes available as variable, constant etc.
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* HOL: "x > y" abbreviates "y < x" and "x >= y" abbreviates "y <= x".
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  Similarly for all quantifiers: "ALL x > y" etc.  The x-symbol for >=
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  is \<ge>.
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* HOL/Set: "{x:A. P}" abbreviates "{x. x:A & P}" (and similarly for
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  "\<in>" instead of ":").
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* HOL/SetInterval: The syntax for open intervals has changed:
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  Old         New
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  {..n(}   -> {..<n}
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  {)n..}   -> {n<..}
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  {m..n(}  -> {m..<n}
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  {)m..n}  -> {m<..n}
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  {)m..n(} -> {m<..<n}
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  The old syntax is still supported but will disappear in the future.
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  For conversion use the following emacs search and replace patterns:
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  {)\([^\.]*\)\.\.  ->  {\1<\.\.}
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  \.\.\([^(}]*\)(}  ->  \.\.<\1}
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  They are not perfect but work quite well.
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* HOL: The syntax for 'setsum', summation over finite sets, has changed:
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  The syntax for 'setsum (%x. e) A' used to be '\<Sum>x:A. e'
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  and is now either 'SUM x:A. e' or '\<Sum>x\<in>A. e'.
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  There is new syntax for summation over finite sets:
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  '\<Sum>x | P. e'    is the same as  'setsum (%x. e) {x. P}'
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  '\<Sum>x=a..b. e'   is the same as  'setsum (%x. e) {a..b}'
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  '\<Sum>x=a..<b. e'  is the same as  'setsum (%x. e) {a..<b}'
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  '\<Sum>x<k. e'      is the same as  'setsum (%x. e) {..<k}'
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  Function 'Summation' over nat is gone, its syntax '\<Sum>i<k. e'
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  now translates into 'setsum' as above.
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* HOL: Finite set induction: In Isar proofs, the insert case is now
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  "case (insert x F)" instead of the old counterintuitive "case (insert F x)".
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* HOL/Simplifier:
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  - Is now set up to reason about transitivity chains involving "trancl"
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  (r^+) and "rtrancl" (r^*) by setting up tactics provided by
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  Provers/trancl.ML as additional solvers.  INCOMPATIBILITY: old proofs break
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  occasionally as simplification may now solve more goals than previously.
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  - Converts x <= y into x = y if assumption y <= x is present.  Works for
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  all partial orders (class "order"), in particular numbers and sets. For
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  linear orders (e.g. numbers) it treats ~ x < y just like y <= x.
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  - Simproc for "let x = a in f x"
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  If a is a free or bound variable or a constant then the let is unfolded.
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  Otherwise first a is simplified to a', and then f a' is simplified to
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  g. If possible we abstract a' from g arriving at "let x = a' in g' x",
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  otherwise we unfold the let and arrive at g. The simproc can be 
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  enabled/disabled by the reference use_let_simproc. Potential
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  INCOMPATIBILITY since simplification is more powerful by default.
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   319
* HOL: The 'refute' command has been extended to support a much larger
e2f45df0696f refute extended
webertj
parents: 15763
diff changeset
   320
  fragment of HOL, including axiomatic type classes, constdefs and typedefs,
e2f45df0696f refute extended
webertj
parents: 15763
diff changeset
   321
  inductive datatypes and recursion.
e2f45df0696f refute extended
webertj
parents: 15763
diff changeset
   322
14655
8a95abf87dd3 Pure: considerably improved version of 'constdefs' command;
wenzelm
parents: 14624
diff changeset
   323
14682
a5072752114c HOLCF: discontinued special version of 'constdefs';
wenzelm
parents: 14655
diff changeset
   324
*** HOLCF ***
a5072752114c HOLCF: discontinued special version of 'constdefs';
wenzelm
parents: 14655
diff changeset
   325
a5072752114c HOLCF: discontinued special version of 'constdefs';
wenzelm
parents: 14655
diff changeset
   326
* HOLCF: discontinued special version of 'constdefs' (which used to
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   327
  support continuous functions) in favor of the general Pure one with
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   328
  full type-inference.
14682
a5072752114c HOLCF: discontinued special version of 'constdefs';
wenzelm
parents: 14655
diff changeset
   329
a5072752114c HOLCF: discontinued special version of 'constdefs';
wenzelm
parents: 14655
diff changeset
   330
14885
0a840138dcd7 Groups, Rings and supporting lemmas in ZF
paulson
parents: 14878
diff changeset
   331
*** ZF ***
0a840138dcd7 Groups, Rings and supporting lemmas in ZF
paulson
parents: 14878
diff changeset
   332
15089
430264838064 ZF/Simplifier: second copy of context type solver;
wenzelm
parents: 15076
diff changeset
   333
* ZF/ex/{Group,Ring}: examples in abstract algebra, including the
430264838064 ZF/Simplifier: second copy of context type solver;
wenzelm
parents: 15076
diff changeset
   334
  First Isomorphism Theorem (on quotienting by the kernel of a
430264838064 ZF/Simplifier: second copy of context type solver;
wenzelm
parents: 15076
diff changeset
   335
  homomorphism).
430264838064 ZF/Simplifier: second copy of context type solver;
wenzelm
parents: 15076
diff changeset
   336
430264838064 ZF/Simplifier: second copy of context type solver;
wenzelm
parents: 15076
diff changeset
   337
* ZF/Simplifier: install second copy of type solver that actually
430264838064 ZF/Simplifier: second copy of context type solver;
wenzelm
parents: 15076
diff changeset
   338
  makes use of TC rules declared to Isar proof contexts (or locales);
430264838064 ZF/Simplifier: second copy of context type solver;
wenzelm
parents: 15076
diff changeset
   339
  the old version is still required for ML proof scripts.
14885
0a840138dcd7 Groups, Rings and supporting lemmas in ZF
paulson
parents: 14878
diff changeset
   340
0a840138dcd7 Groups, Rings and supporting lemmas in ZF
paulson
parents: 14878
diff changeset
   341
15703
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   342
*** System ***
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   343
15852
4f1a78454452 allow symlinks to all proper Isabelle executables;
wenzelm
parents: 15801
diff changeset
   344
* Allow symlinks to all proper Isabelle executables (Isabelle,
4f1a78454452 allow symlinks to all proper Isabelle executables;
wenzelm
parents: 15801
diff changeset
   345
  isabelle, isatool etc.).
4f1a78454452 allow symlinks to all proper Isabelle executables;
wenzelm
parents: 15801
diff changeset
   346
4f1a78454452 allow symlinks to all proper Isabelle executables;
wenzelm
parents: 15801
diff changeset
   347
* isabelle-process: Poly/ML no longer needs Perl to run an interactive
4f1a78454452 allow symlinks to all proper Isabelle executables;
wenzelm
parents: 15801
diff changeset
   348
  session.
4f1a78454452 allow symlinks to all proper Isabelle executables;
wenzelm
parents: 15801
diff changeset
   349
4f1a78454452 allow symlinks to all proper Isabelle executables;
wenzelm
parents: 15801
diff changeset
   350
* ISABELLE_DOC_FORMAT setting specifies preferred document format (for
4f1a78454452 allow symlinks to all proper Isabelle executables;
wenzelm
parents: 15801
diff changeset
   351
  isatool doc, isatool mkdir, display_drafts etc.).
15703
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   352
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   353
* isatool usedir: option -f allows specification of the ML file to be
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   354
  used by Isabelle; default is ROOT.ML.
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   355
15852
4f1a78454452 allow symlinks to all proper Isabelle executables;
wenzelm
parents: 15801
diff changeset
   356
* HOL: isatool dimacs2hol converts files in DIMACS CNF format
4f1a78454452 allow symlinks to all proper Isabelle executables;
wenzelm
parents: 15801
diff changeset
   357
  (containing Boolean satisfiability problems) into Isabelle/HOL
4f1a78454452 allow symlinks to all proper Isabelle executables;
wenzelm
parents: 15801
diff changeset
   358
  theories.
15703
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   359
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   360
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   361
*** ML ***
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   362
15973
wenzelm
parents: 15931
diff changeset
   363
* Pure/library.ML no longer defines its own option datatype, but uses
wenzelm
parents: 15931
diff changeset
   364
  that of the SML basis, which has constructors NONE and SOME instead
wenzelm
parents: 15931
diff changeset
   365
  of None and Some, as well as exception Option.Option instead of
wenzelm
parents: 15931
diff changeset
   366
  OPTION.  The functions the, if_none, is_some, is_none have been
wenzelm
parents: 15931
diff changeset
   367
  adapted accordingly, while Option.map replaces apsome.
wenzelm
parents: 15931
diff changeset
   368
wenzelm
parents: 15931
diff changeset
   369
* The exception LIST is no more, the standard exceptions Empty and
wenzelm
parents: 15931
diff changeset
   370
  Subscript, as well as Library.UnequalLengths are used instead.  This
wenzelm
parents: 15931
diff changeset
   371
  means that function like Library.hd and Library.tl are gone, as the
wenzelm
parents: 15931
diff changeset
   372
  standard hd and tl functions suffice.
wenzelm
parents: 15931
diff changeset
   373
wenzelm
parents: 15931
diff changeset
   374
  A number of basic functions are now no longer exported to the ML
wenzelm
parents: 15931
diff changeset
   375
  toplevel, as they are variants of standard functions.  The following
wenzelm
parents: 15931
diff changeset
   376
  suggests how one can translate existing code:
wenzelm
parents: 15931
diff changeset
   377
wenzelm
parents: 15931
diff changeset
   378
    rev_append xs ys = List.revAppend (xs, ys)
wenzelm
parents: 15931
diff changeset
   379
    nth_elem (i, xs) = List.nth (xs, i)
wenzelm
parents: 15931
diff changeset
   380
    last_elem xs = List.last xs
wenzelm
parents: 15931
diff changeset
   381
    flat xss = List.concat xss
wenzelm
parents: 15931
diff changeset
   382
    seq fs = app fs
wenzelm
parents: 15931
diff changeset
   383
    partition P xs = List.partition P xs
wenzelm
parents: 15931
diff changeset
   384
    filter P xs = List.filter P xs
wenzelm
parents: 15931
diff changeset
   385
    mapfilter f xs = List.mapPartial f xs
wenzelm
parents: 15931
diff changeset
   386
15703
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   387
* Pure: output via the Isabelle channels of writeln/warning/error
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   388
  etc. is now passed through Output.output, with a hook for arbitrary
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   389
  transformations depending on the print_mode (cf. Output.add_mode --
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   390
  the first active mode that provides a output function wins).
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   391
  Already formatted output may be embedded into further text via
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   392
  Output.raw; the result of Pretty.string_of/str_of and derived
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   393
  functions (string_of_term/cterm/thm etc.) is already marked raw to
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   394
  accommodate easy composition of diagnostic messages etc.
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   395
  Programmers rarely need to care about Output.output or Output.raw at
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   396
  all, with some notable exceptions: Output.output is required when
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   397
  bypassing the standard channels (writeln etc.), or in token
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   398
  translations to produce properly formatted results; Output.raw is
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   399
  required when capturing already output material that will eventually
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   400
  be presented to the user a second time.  For the default print mode,
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   401
  both Output.output and Output.raw have no effect.
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   402
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   403
* Provers: Simplifier and Classical Reasoner now support proof context
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   404
  dependent plug-ins (simprocs, solvers, wrappers etc.).  These extra
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   405
  components are stored in the theory and patched into the
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   406
  simpset/claset when used in an Isar proof context.  Context
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   407
  dependent components are maintained by the following theory
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   408
  operations:
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   409
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   410
    Simplifier.add_context_simprocs
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   411
    Simplifier.del_context_simprocs
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   412
    Simplifier.set_context_subgoaler
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   413
    Simplifier.reset_context_subgoaler
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   414
    Simplifier.add_context_looper
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   415
    Simplifier.del_context_looper
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   416
    Simplifier.add_context_unsafe_solver
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   417
    Simplifier.add_context_safe_solver
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   418
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   419
    Classical.add_context_safe_wrapper
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   420
    Classical.del_context_safe_wrapper
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   421
    Classical.add_context_unsafe_wrapper
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   422
    Classical.del_context_unsafe_wrapper
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   423
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   424
  IMPORTANT NOTE: proof tools (methods etc.) need to use
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   425
  local_simpset_of and local_claset_of to instead of the primitive
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   426
  Simplifier.get_local_simpset and Classical.get_local_claset,
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   427
  respectively, in order to see the context dependent fields!
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   428
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   429
14655
8a95abf87dd3 Pure: considerably improved version of 'constdefs' command;
wenzelm
parents: 14624
diff changeset
   430
14606
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   431
New in Isabelle2004 (April 2004)
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   432
--------------------------------
13280
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents: 13190
diff changeset
   433
14171
0cab06e3bbd0 Extended the notion of letter and digit, such that now one may use greek,
skalberg
parents: 14136
diff changeset
   434
*** General ***
0cab06e3bbd0 Extended the notion of letter and digit, such that now one may use greek,
skalberg
parents: 14136
diff changeset
   435
14398
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   436
* Provers/order.ML:  new efficient reasoner for partial and linear orders.
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   437
  Replaces linorder.ML.
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   438
14606
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   439
* Pure: Greek letters (except small lambda, \<lambda>), as well as Gothic
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   440
  (\<aa>...\<zz>\<AA>...\<ZZ>), calligraphic (\<A>...\<Z>), and Euler
14173
a3690aeb79d4 Removed the extended digits again.
skalberg
parents: 14172
diff changeset
   441
  (\<a>...\<z>), are now considered normal letters, and can therefore
a3690aeb79d4 Removed the extended digits again.
skalberg
parents: 14172
diff changeset
   442
  be used anywhere where an ASCII letter (a...zA...Z) has until
a3690aeb79d4 Removed the extended digits again.
skalberg
parents: 14172
diff changeset
   443
  now. COMPATIBILITY: This obviously changes the parsing of some
a3690aeb79d4 Removed the extended digits again.
skalberg
parents: 14172
diff changeset
   444
  terms, especially where a symbol has been used as a binder, say
a3690aeb79d4 Removed the extended digits again.
skalberg
parents: 14172
diff changeset
   445
  '\<Pi>x. ...', which is now a type error since \<Pi>x will be parsed
a3690aeb79d4 Removed the extended digits again.
skalberg
parents: 14172
diff changeset
   446
  as an identifier.  Fix it by inserting a space around former
a3690aeb79d4 Removed the extended digits again.
skalberg
parents: 14172
diff changeset
   447
  symbols.  Call 'isatool fixgreek' to try to fix parsing errors in
a3690aeb79d4 Removed the extended digits again.
skalberg
parents: 14172
diff changeset
   448
  existing theory and ML files.
14171
0cab06e3bbd0 Extended the notion of letter and digit, such that now one may use greek,
skalberg
parents: 14136
diff changeset
   449
14237
a486123e24a5 line-breaks; rewording
paulson
parents: 14234
diff changeset
   450
* Pure: Macintosh and Windows line-breaks are now allowed in theory files.
a486123e24a5 line-breaks; rewording
paulson
parents: 14234
diff changeset
   451
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   452
* Pure: single letter sub/superscripts (\<^isub> and \<^isup>) are now
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   453
  allowed in identifiers. Similar to Greek letters \<^isub> is now considered
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   454
  a normal (but invisible) letter. For multiple letter subscripts repeat
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   455
  \<^isub> like this: x\<^isub>1\<^isub>2.
14233
f6b6b2c55141 allow \<^sub> in identifiers
kleing
parents: 14224
diff changeset
   456
14333
14f29eb097a3 \<^bsub> .. \<^esub>
kleing
parents: 14285
diff changeset
   457
* Pure: There are now sub-/superscripts that can span more than one
14f29eb097a3 \<^bsub> .. \<^esub>
kleing
parents: 14285
diff changeset
   458
  character. Text between \<^bsub> and \<^esub> is set in subscript in
14606
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   459
  ProofGeneral and LaTeX, text between \<^bsup> and \<^esup> in
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   460
  superscript. The new control characters are not identifier parts.
14333
14f29eb097a3 \<^bsub> .. \<^esub>
kleing
parents: 14285
diff changeset
   461
14561
c53396af770e * raw control symbols are of the form \<^raw:...> now.
schirmer
parents: 14556
diff changeset
   462
* Pure: Control-symbols of the form \<^raw:...> will literally print the
14606
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   463
  content of "..." to the latex file instead of \isacntrl... . The "..."
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   464
  may consist of any printable characters excluding the end bracket >.
14361
ad2f5da643b4 * Support for raw latex output in control symbols: \<^raw...>
schirmer
parents: 14333
diff changeset
   465
14237
a486123e24a5 line-breaks; rewording
paulson
parents: 14234
diff changeset
   466
* Pure: Using new Isar command "finalconsts" (or the ML functions
a486123e24a5 line-breaks; rewording
paulson
parents: 14234
diff changeset
   467
  Theory.add_finals or Theory.add_finals_i) it is now possible to
a486123e24a5 line-breaks; rewording
paulson
parents: 14234
diff changeset
   468
  declare constants "final", which prevents their being given a definition
a486123e24a5 line-breaks; rewording
paulson
parents: 14234
diff changeset
   469
  later.  It is useful for constants whose behaviour is fixed axiomatically
14224
442c097c1437 Added info on the new 'finalconsts' command.
skalberg
parents: 14211
diff changeset
   470
  rather than definitionally, such as the meta-logic connectives.
442c097c1437 Added info on the new 'finalconsts' command.
skalberg
parents: 14211
diff changeset
   471
14606
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   472
* Pure: 'instance' now handles general arities with general sorts
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   473
  (i.e. intersections of classes),
14503
255ad604e08e Added check that Theory.ML does not occur in the files section of the theory
skalberg
parents: 14480
diff changeset
   474
14547
e0c0179100c9 isabelle.css
kleing
parents: 14536
diff changeset
   475
* Presentation: generated HTML now uses a CSS style sheet to make layout
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   476
  (somewhat) independent of content. It is copied from lib/html/isabelle.css.
14547
e0c0179100c9 isabelle.css
kleing
parents: 14536
diff changeset
   477
  It can be changed to alter the colors/layout of generated pages.
e0c0179100c9 isabelle.css
kleing
parents: 14536
diff changeset
   478
14556
c5078f6c99a9 * Calculation commands "moreover" and "also" no longer interfere with
wenzelm
parents: 14551
diff changeset
   479
14175
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   480
*** Isar ***
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   481
14508
859b11514537 Experimental command for instantiation of locales in proof contexts:
ballarin
parents: 14503
diff changeset
   482
* Tactic emulation methods rule_tac, erule_tac, drule_tac, frule_tac,
859b11514537 Experimental command for instantiation of locales in proof contexts:
ballarin
parents: 14503
diff changeset
   483
  cut_tac, subgoal_tac and thin_tac:
14175
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   484
  - Now understand static (Isar) contexts.  As a consequence, users of Isar
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   485
    locales are no longer forced to write Isar proof scripts.
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   486
    For details see Isar Reference Manual, paragraph 4.3.2: Further tactic
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   487
    emulations.
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   488
  - INCOMPATIBILITY: names of variables to be instantiated may no
14211
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   489
    longer be enclosed in quotes.  Instead, precede variable name with `?'.
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   490
    This is consistent with the instantiation attribute "where".
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   491
14257
a7ef3f7588c5 Type inference bug in Isar attributes "where" and "of" fixed.
ballarin
parents: 14255
diff changeset
   492
* Attributes "where" and "of":
14285
92ed032e83a1 Isar: where attribute supports instantiation of type vars.
ballarin
parents: 14283
diff changeset
   493
  - Now take type variables of instantiated theorem into account when reading
92ed032e83a1 Isar: where attribute supports instantiation of type vars.
ballarin
parents: 14283
diff changeset
   494
    the instantiation string.  This fixes a bug that caused instantiated
92ed032e83a1 Isar: where attribute supports instantiation of type vars.
ballarin
parents: 14283
diff changeset
   495
    theorems to have too special types in some circumstances.
92ed032e83a1 Isar: where attribute supports instantiation of type vars.
ballarin
parents: 14283
diff changeset
   496
  - "where" permits explicit instantiations of type variables.
14257
a7ef3f7588c5 Type inference bug in Isar attributes "where" and "of" fixed.
ballarin
parents: 14255
diff changeset
   497
14556
c5078f6c99a9 * Calculation commands "moreover" and "also" no longer interfere with
wenzelm
parents: 14551
diff changeset
   498
* Calculation commands "moreover" and "also" no longer interfere with
c5078f6c99a9 * Calculation commands "moreover" and "also" no longer interfere with
wenzelm
parents: 14551
diff changeset
   499
  current facts ("this"), admitting arbitrary combinations with "then"
c5078f6c99a9 * Calculation commands "moreover" and "also" no longer interfere with
wenzelm
parents: 14551
diff changeset
   500
  and derived forms.
14283
516358ca7b42 moreover and also do not reset facts any more
kleing
parents: 14257
diff changeset
   501
14211
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   502
* Locales:
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   503
  - Goal statements involving the context element "includes" no longer
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   504
    generate theorems with internal delta predicates (those ending on
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   505
    "_axioms") in the premise.
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   506
    Resolve particular premise with <locale>.intro to obtain old form.
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   507
  - Fixed bug in type inference ("unify_frozen") that prevented mix of target
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   508
    specification and "includes" elements in goal statement.
14254
342634f38451 Isar/Locales: <loc>.intro and <loc>.axioms no longer intro? and elim? by
ballarin
parents: 14243
diff changeset
   509
  - Rule sets <locale>.intro and <locale>.axioms no longer declared as
342634f38451 Isar/Locales: <loc>.intro and <loc>.axioms no longer intro? and elim? by
ballarin
parents: 14243
diff changeset
   510
    [intro?] and [elim?] (respectively) by default.
14508
859b11514537 Experimental command for instantiation of locales in proof contexts:
ballarin
parents: 14503
diff changeset
   511
  - Experimental command for instantiation of locales in proof contexts:
14551
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   512
        instantiate <label>[<attrs>]: <loc>
14508
859b11514537 Experimental command for instantiation of locales in proof contexts:
ballarin
parents: 14503
diff changeset
   513
    Instantiates locale <loc> and adds all its theorems to the current context
14551
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   514
    taking into account their attributes.  Label and attrs are optional
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   515
    modifiers, like in theorem declarations.  If present, names of
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   516
    instantiated theorems are qualified with <label>, and the attributes
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   517
    <attrs> are applied after any attributes these theorems might have already.
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   518
      If the locale has assumptions, a chained fact of the form
14508
859b11514537 Experimental command for instantiation of locales in proof contexts:
ballarin
parents: 14503
diff changeset
   519
    "<loc> t1 ... tn" is expected from which instantiations of the parameters
14551
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   520
    are derived.  The command does not support old-style locales declared
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   521
    with "locale (open)".
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   522
      A few (very simple) examples can be found in FOL/ex/LocaleInst.thy.
14175
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   523
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   524
* HOL: Tactic emulation methods induct_tac and case_tac understand static
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   525
  (Isar) contexts.
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   526
14556
c5078f6c99a9 * Calculation commands "moreover" and "also" no longer interfere with
wenzelm
parents: 14551
diff changeset
   527
14136
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   528
*** HOL ***
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   529
14624
9b3397a848c3 add HOL4
kleing
parents: 14610
diff changeset
   530
* Proof import: new image HOL4 contains the imported library from
9b3397a848c3 add HOL4
kleing
parents: 14610
diff changeset
   531
  the HOL4 system with about 2500 theorems. It is imported by
9b3397a848c3 add HOL4
kleing
parents: 14610
diff changeset
   532
  replaying proof terms produced by HOL4 in Isabelle. The HOL4 image
9b3397a848c3 add HOL4
kleing
parents: 14610
diff changeset
   533
  can be used like any other Isabelle image.  See
9b3397a848c3 add HOL4
kleing
parents: 14610
diff changeset
   534
  HOL/Import/HOL/README for more information.
9b3397a848c3 add HOL4
kleing
parents: 14610
diff changeset
   535
14398
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   536
* Simplifier:
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   537
  - Much improved handling of linear and partial orders.
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   538
    Reasoners for linear and partial orders are set up for type classes
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   539
    "linorder" and "order" respectively, and are added to the default simpset
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   540
    as solvers.  This means that the simplifier can build transitivity chains
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   541
    to solve goals from the assumptions.
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   542
  - INCOMPATIBILITY: old proofs break occasionally.  Typically, applications
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   543
    of blast or auto after simplification become unnecessary because the goal
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   544
    is solved by simplification already.
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   545
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   546
* Numerics: new theory Ring_and_Field contains over 250 basic numerical laws,
14389
paulson
parents: 14380
diff changeset
   547
    all proved in axiomatic type classes for semirings, rings and fields.
paulson
parents: 14380
diff changeset
   548
paulson
parents: 14380
diff changeset
   549
* Numerics:
paulson
parents: 14380
diff changeset
   550
  - Numeric types (nat, int, and in HOL-Complex rat, real, complex, etc.) are
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   551
    now formalized using the Ring_and_Field theory mentioned above.
14389
paulson
parents: 14380
diff changeset
   552
  - INCOMPATIBILITY: simplification and arithmetic behaves somewhat differently
paulson
parents: 14380
diff changeset
   553
    than before, because now they are set up once in a generic manner.
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   554
  - INCOMPATIBILITY: many type-specific arithmetic laws have gone.
14480
14b7923b3307 clarified
paulson
parents: 14464
diff changeset
   555
    Look for the general versions in Ring_and_Field (and Power if they concern
14b7923b3307 clarified
paulson
parents: 14464
diff changeset
   556
    exponentiation).
14389
paulson
parents: 14380
diff changeset
   557
14401
477380c74c1d removal of the legacy ML structure List
paulson
parents: 14399
diff changeset
   558
* Type "rat" of the rational numbers is now available in HOL-Complex.
14389
paulson
parents: 14380
diff changeset
   559
14255
e6e3e3f0deed Records:
schirmer
parents: 14254
diff changeset
   560
* Records:
e6e3e3f0deed Records:
schirmer
parents: 14254
diff changeset
   561
  - Record types are now by default printed with their type abbreviation
e6e3e3f0deed Records:
schirmer
parents: 14254
diff changeset
   562
    instead of the list of all field types. This can be configured via
e6e3e3f0deed Records:
schirmer
parents: 14254
diff changeset
   563
    the reference "print_record_type_abbr".
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   564
  - Simproc "record_upd_simproc" for simplification of multiple updates added
14255
e6e3e3f0deed Records:
schirmer
parents: 14254
diff changeset
   565
    (not enabled by default).
14427
cea7d2f76112 added record_ex_sel_eq_simproc
schirmer
parents: 14418
diff changeset
   566
  - Simproc "record_ex_sel_eq_simproc" to simplify EX x. sel r = x resp.
cea7d2f76112 added record_ex_sel_eq_simproc
schirmer
parents: 14418
diff changeset
   567
    EX x. x = sel r to True (not enabled by default).
14255
e6e3e3f0deed Records:
schirmer
parents: 14254
diff changeset
   568
  - Tactic "record_split_simp_tac" to split and simplify records added.
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   569
14136
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   570
* 'specification' command added, allowing for definition by
14224
442c097c1437 Added info on the new 'finalconsts' command.
skalberg
parents: 14211
diff changeset
   571
  specification.  There is also an 'ax_specification' command that
442c097c1437 Added info on the new 'finalconsts' command.
skalberg
parents: 14211
diff changeset
   572
  introduces the new constants axiomatically.
14136
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   573
14375
a545da363b23 *** empty log message ***
nipkow
parents: 14361
diff changeset
   574
* arith(_tac) is now able to generate counterexamples for reals as well.
a545da363b23 *** empty log message ***
nipkow
parents: 14361
diff changeset
   575
14399
dc677b35e54f New lemmas about inversion of restricted functions.
ballarin
parents: 14398
diff changeset
   576
* HOL-Algebra: new locale "ring" for non-commutative rings.
dc677b35e54f New lemmas about inversion of restricted functions.
ballarin
parents: 14398
diff changeset
   577
14243
0e2ec694784d recursion
paulson
parents: 14237
diff changeset
   578
* HOL-ex: InductiveInvariant_examples illustrates advanced recursive function
14610
9c2e31e483b2 added HOL-Matrix, added HOL/Matrix/ROOT.ML
kleing
parents: 14606
diff changeset
   579
  definitions, thanks to Sava Krsti\'{c} and John Matthews.
9c2e31e483b2 added HOL-Matrix, added HOL/Matrix/ROOT.ML
kleing
parents: 14606
diff changeset
   580
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   581
* HOL-Matrix: a first theory for matrices in HOL with an application of
14610
9c2e31e483b2 added HOL-Matrix, added HOL/Matrix/ROOT.ML
kleing
parents: 14606
diff changeset
   582
  matrix theory to linear programming.
14136
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   583
14380
04b603a6f17d *** empty log message ***
nipkow
parents: 14375
diff changeset
   584
* Unions and Intersections:
15119
e5f167042c1d undid UN/INT xsymbol syntax with subscripts.
nipkow
parents: 15103
diff changeset
   585
  The latex output syntax of UN and INT has been changed
e5f167042c1d undid UN/INT xsymbol syntax with subscripts.
nipkow
parents: 15103
diff changeset
   586
  from "\Union x \in A. B" to "\Union_{x \in A} B"
e5f167042c1d undid UN/INT xsymbol syntax with subscripts.
nipkow
parents: 15103
diff changeset
   587
  i.e. the index formulae has become a subscript.
e5f167042c1d undid UN/INT xsymbol syntax with subscripts.
nipkow
parents: 15103
diff changeset
   588
  Similarly for "\Union x. B", and for \Inter instead of \Union.
14380
04b603a6f17d *** empty log message ***
nipkow
parents: 14375
diff changeset
   589
14418
b62323c85134 union/intersection over intervals
kleing
parents: 14401
diff changeset
   590
* Unions and Intersections over Intervals:
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   591
  There is new short syntax "UN i<=n. A" for "UN i:{0..n}. A". There is
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   592
  also an x-symbol version with subscripts "\<Union>\<^bsub>i <= n\<^esub>. A"
14418
b62323c85134 union/intersection over intervals
kleing
parents: 14401
diff changeset
   593
  like in normal math, and corresponding versions for < and for intersection.
b62323c85134 union/intersection over intervals
kleing
parents: 14401
diff changeset
   594
15677
8770edbf8f28 *** empty log message ***
nipkow
parents: 15570
diff changeset
   595
* HOL/List: Ordering "lexico" is renamed "lenlex" and the standard
8770edbf8f28 *** empty log message ***
nipkow
parents: 15570
diff changeset
   596
  lexicographic dictonary ordering has been added as "lexord".
8770edbf8f28 *** empty log message ***
nipkow
parents: 15570
diff changeset
   597
14401
477380c74c1d removal of the legacy ML structure List
paulson
parents: 14399
diff changeset
   598
* ML: the legacy theory structures Int and List have been removed. They had
477380c74c1d removal of the legacy ML structure List
paulson
parents: 14399
diff changeset
   599
  conflicted with ML Basis Library structures having the same names.
14380
04b603a6f17d *** empty log message ***
nipkow
parents: 14375
diff changeset
   600
14464
webertj
parents: 14427
diff changeset
   601
* 'refute' command added to search for (finite) countermodels.  Only works
webertj
parents: 14427
diff changeset
   602
  for a fragment of HOL.  The installation of an external SAT solver is
webertj
parents: 14427
diff changeset
   603
  highly recommended.  See "HOL/Refute.thy" for details.
webertj
parents: 14427
diff changeset
   604
14602
e06ded775eca Added entry for quickcheck command.
berghofe
parents: 14572
diff changeset
   605
* 'quickcheck' command: Allows to find counterexamples by evaluating
e06ded775eca Added entry for quickcheck command.
berghofe
parents: 14572
diff changeset
   606
  formulae under an assignment of free variables to random values.
e06ded775eca Added entry for quickcheck command.
berghofe
parents: 14572
diff changeset
   607
  In contrast to 'refute', it can deal with inductive datatypes,
e06ded775eca Added entry for quickcheck command.
berghofe
parents: 14572
diff changeset
   608
  but cannot handle quantifiers. See "HOL/ex/Quickcheck_Examples.thy"
e06ded775eca Added entry for quickcheck command.
berghofe
parents: 14572
diff changeset
   609
  for examples.
14464
webertj
parents: 14427
diff changeset
   610
14606
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   611
14536
43e436a4f293 added HOLCF/Streams.thy (with concatenation etc.)
oheimb
parents: 14508
diff changeset
   612
*** HOLCF ***
43e436a4f293 added HOLCF/Streams.thy (with concatenation etc.)
oheimb
parents: 14508
diff changeset
   613
43e436a4f293 added HOLCF/Streams.thy (with concatenation etc.)
oheimb
parents: 14508
diff changeset
   614
* Streams now come with concatenation and are part of the HOLCF image
43e436a4f293 added HOLCF/Streams.thy (with concatenation etc.)
oheimb
parents: 14508
diff changeset
   615
14572
wenzelm
parents: 14561
diff changeset
   616
wenzelm
parents: 14561
diff changeset
   617
14136
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   618
New in Isabelle2003 (May 2003)
14606
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   619
------------------------------
14136
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   620
13280
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents: 13190
diff changeset
   621
*** General ***
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents: 13190
diff changeset
   622
13618
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   623
* Provers/simplifier:
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   624
13781
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   625
  - Completely reimplemented method simp (ML: Asm_full_simp_tac):
13618
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   626
    Assumptions are now subject to complete mutual simplification,
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   627
    not just from left to right. The simplifier now preserves
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   628
    the order of assumptions.
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   629
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   630
    Potential INCOMPATIBILITY:
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   631
13781
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   632
    -- simp sometimes diverges where the old version did
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   633
       not, e.g. invoking simp on the goal
13618
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   634
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   635
        [| P (f x); y = x; f x = f y |] ==> Q
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   636
13781
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   637
       now gives rise to the infinite reduction sequence
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   638
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   639
        P(f x) --(f x = f y)--> P(f y) --(y = x)--> P(f x) --(f x = f y)--> ...
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   640
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   641
       Using "simp (asm_lr)" (ML: Asm_lr_simp_tac) instead often solves this
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   642
       kind of problem.
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   643
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   644
    -- Tactics combining classical reasoner and simplification (such as auto)
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   645
       are also affected by this change, because many of them rely on
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   646
       simp. They may sometimes diverge as well or yield a different numbers
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   647
       of subgoals. Try to use e.g. force, fastsimp, or safe instead of auto
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   648
       in case of problems. Sometimes subsequent calls to the classical
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   649
       reasoner will fail because a preceeding call to the simplifier too
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   650
       eagerly simplified the goal, e.g. deleted redundant premises.
13618
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   651
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   652
  - The simplifier trace now shows the names of the applied rewrite rules
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   653
13829
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   654
  - You can limit the number of recursive invocations of the simplifier
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   655
    during conditional rewriting (where the simplifie tries to solve the
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   656
    conditions before applying the rewrite rule):
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   657
    ML "simp_depth_limit := n"
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   658
    where n is an integer. Thus you can force termination where previously
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   659
    the simplifier would diverge.
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   660
13835
12b2ffbe543a Change to meta simplifier: congruence rules may now have frees as head of term.
ballarin
parents: 13829
diff changeset
   661
  - Accepts free variables as head terms in congruence rules.  Useful in Isar.
13829
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   662
13938
b033b53d0c1e Simplifier: congruence rule update.
ballarin
parents: 13899
diff changeset
   663
  - No longer aborts on failed congruence proof.  Instead, the
b033b53d0c1e Simplifier: congruence rule update.
ballarin
parents: 13899
diff changeset
   664
    congruence is ignored.
b033b53d0c1e Simplifier: congruence rule update.
ballarin
parents: 13899
diff changeset
   665
14008
f843528b9f3c Program extraction framework.
berghofe
parents: 13995
diff changeset
   666
* Pure: New generic framework for extracting programs from constructive
f843528b9f3c Program extraction framework.
berghofe
parents: 13995
diff changeset
   667
  proofs. See HOL/Extraction.thy for an example instantiation, as well
f843528b9f3c Program extraction framework.
berghofe
parents: 13995
diff changeset
   668
  as HOL/Extraction for some case studies.
f843528b9f3c Program extraction framework.
berghofe
parents: 13995
diff changeset
   669
13868
01b516b64233 *** empty log message ***
nipkow
parents: 13835
diff changeset
   670
* Pure: The main goal of the proof state is no longer shown by default, only
01b516b64233 *** empty log message ***
nipkow
parents: 13835
diff changeset
   671
the subgoals. This behaviour is controlled by a new flag.
13835
12b2ffbe543a Change to meta simplifier: congruence rules may now have frees as head of term.
ballarin
parents: 13829
diff changeset
   672
   PG menu: Isabelle/Isar -> Settings -> Show Main Goal
13815
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   673
(ML: Proof.show_main_goal).
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   674
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   675
* Pure: You can find all matching introduction rules for subgoal 1, i.e. all
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   676
rules whose conclusion matches subgoal 1:
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   677
      PG menu: Isabelle/Isar -> Show me -> matching rules
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   678
The rules are ordered by how closely they match the subgoal.
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   679
In particular, rules that solve a subgoal outright are displayed first
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   680
(or rather last, the way they are printed).
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   681
(ML: ProofGeneral.print_intros())
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   682
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   683
* Pure: New flag trace_unify_fail causes unification to print
13781
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   684
diagnostic information (PG: in trace buffer) when it fails. This is
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   685
useful for figuring out why single step proofs like rule, erule or
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   686
assumption failed.
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   687
13815
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   688
* Pure: Locale specifications now produce predicate definitions
13410
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   689
according to the body of text (covering assumptions modulo local
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   690
definitions); predicate "loc_axioms" covers newly introduced text,
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   691
while "loc" is cumulative wrt. all included locale expressions; the
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   692
latter view is presented only on export into the global theory
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   693
context; potential INCOMPATIBILITY, use "(open)" option to fall back
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   694
on the old view without predicates;
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   695
13459
83f41b047a39 * Pure: predefined locales "var" and "struct" are useful for sharing
wenzelm
parents: 13443
diff changeset
   696
* Pure: predefined locales "var" and "struct" are useful for sharing
83f41b047a39 * Pure: predefined locales "var" and "struct" are useful for sharing
wenzelm
parents: 13443
diff changeset
   697
parameters (as in CASL, for example); just specify something like
83f41b047a39 * Pure: predefined locales "var" and "struct" are useful for sharing
wenzelm
parents: 13443
diff changeset
   698
``var x + var y + struct M'' as import;
83f41b047a39 * Pure: predefined locales "var" and "struct" are useful for sharing
wenzelm
parents: 13443
diff changeset
   699
13463
07747943c626 * Provers: Simplifier.simproc(_i) now provide sane interface for
wenzelm
parents: 13459
diff changeset
   700
* Pure: improved thms_containing: proper indexing of facts instead of
07747943c626 * Provers: Simplifier.simproc(_i) now provide sane interface for
wenzelm
parents: 13459
diff changeset
   701
raw theorems; check validity of results wrt. current name space;
07747943c626 * Provers: Simplifier.simproc(_i) now provide sane interface for
wenzelm
parents: 13459
diff changeset
   702
include local facts of proof configuration (also covers active
13541
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   703
locales), cover fixed variables in index; may use "_" in term
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   704
specification; an optional limit for the number of printed facts may
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   705
be given (the default is 40);
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   706
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   707
* Pure: disallow duplicate fact bindings within new-style theory files
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   708
(batch-mode only);
13540
aede0306e214 * Pure: disallow duplicate fact bindings within new-style theory files;
wenzelm
parents: 13522
diff changeset
   709
13463
07747943c626 * Provers: Simplifier.simproc(_i) now provide sane interface for
wenzelm
parents: 13459
diff changeset
   710
* Provers: improved induct method: assumptions introduced by case
07747943c626 * Provers: Simplifier.simproc(_i) now provide sane interface for
wenzelm
parents: 13459
diff changeset
   711
"foo" are split into "foo.hyps" (from the rule) and "foo.prems" (from
07747943c626 * Provers: Simplifier.simproc(_i) now provide sane interface for
wenzelm
parents: 13459
diff changeset
   712
the goal statement); "foo" still refers to all facts collectively;
07747943c626 * Provers: Simplifier.simproc(_i) now provide sane interface for
wenzelm
parents: 13459
diff changeset
   713
13550
5a176b8dda84 removal of blast.overloaded
paulson
parents: 13549
diff changeset
   714
* Provers: the function blast.overloaded has been removed: all constants
5a176b8dda84 removal of blast.overloaded
paulson
parents: 13549
diff changeset
   715
are regarded as potentially overloaded, which improves robustness in exchange
5a176b8dda84 removal of blast.overloaded
paulson
parents: 13549
diff changeset
   716
for slight decrease in efficiency;
5a176b8dda84 removal of blast.overloaded
paulson
parents: 13549
diff changeset
   717
13781
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   718
* Provers/linorder: New generic prover for transitivity reasoning over
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   719
linear orders.  Note: this prover is not efficient!
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   720
13522
934fffeb6f38 * Isar: preview of problems to finish 'show' now produce an error
wenzelm
parents: 13518
diff changeset
   721
* Isar: preview of problems to finish 'show' now produce an error
934fffeb6f38 * Isar: preview of problems to finish 'show' now produce an error
wenzelm
parents: 13518
diff changeset
   722
rather than just a warning (in interactive mode);
934fffeb6f38 * Isar: preview of problems to finish 'show' now produce an error
wenzelm
parents: 13518
diff changeset
   723
13280
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents: 13190
diff changeset
   724
13158
8e86582a90d1 *** empty log message ***
nipkow
parents: 13042
diff changeset
   725
*** HOL ***
8e86582a90d1 *** empty log message ***
nipkow
parents: 13042
diff changeset
   726
13899
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   727
* arith(_tac)
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   728
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   729
 - Produces a counter example if it cannot prove a goal.
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   730
   Note that the counter example may be spurious if the goal is not a formula
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   731
   of quantifier-free linear arithmetic.
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   732
   In ProofGeneral the counter example appears in the trace buffer.
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   733
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   734
 - Knows about div k and mod k where k is a numeral of type nat or int.
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   735
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   736
 - Calls full Presburger arithmetic (by Amine Chaieb) if quantifier-free
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   737
   linear arithmetic fails. This takes account of quantifiers and divisibility.
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   738
   Presburger arithmetic can also be called explicitly via presburger(_tac).
13899
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   739
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   740
* simp's arithmetic capabilities have been enhanced a bit: it now
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   741
takes ~= in premises into account (by performing a case split);
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   742
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   743
* simp reduces "m*(n div m) + n mod m" to n, even if the two summands
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   744
are distributed over a sum of terms;
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   745
13735
7de9342aca7a HOL-Algebra partially ported to Isar.
ballarin
parents: 13648
diff changeset
   746
* New tactic "trans_tac" and method "trans" instantiate
7de9342aca7a HOL-Algebra partially ported to Isar.
ballarin
parents: 13648
diff changeset
   747
Provers/linorder.ML for axclasses "order" and "linorder" (predicates
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   748
"<=", "<" and "=").
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   749
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   750
* function INCOMPATIBILITIES: Pi-sets have been redefined and moved from main
13587
659813a3f879 GroupTheory and FuncSet
paulson
parents: 13570
diff changeset
   751
HOL to Library/FuncSet; constant "Fun.op o" is now called "Fun.comp";
659813a3f879 GroupTheory and FuncSet
paulson
parents: 13570
diff changeset
   752
13443
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   753
* 'typedef' command has new option "open" to suppress the set
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   754
definition;
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   755
13522
934fffeb6f38 * Isar: preview of problems to finish 'show' now produce an error
wenzelm
parents: 13518
diff changeset
   756
* functions Min and Max on finite sets have been introduced (theory
934fffeb6f38 * Isar: preview of problems to finish 'show' now produce an error
wenzelm
parents: 13518
diff changeset
   757
Finite_Set);
13492
6aae8eb39a18 *** empty log message ***
nipkow
parents: 13478
diff changeset
   758
13443
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   759
* attribute [symmetric] now works for relations as well; it turns
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   760
(x,y) : R^-1 into (y,x) : R, and vice versa;
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   761
13613
531f1f524848 *** empty log message ***
nipkow
parents: 13587
diff changeset
   762
* induct over a !!-quantified statement (say !!x1..xn):
531f1f524848 *** empty log message ***
nipkow
parents: 13587
diff changeset
   763
  each "case" automatically performs "fix x1 .. xn" with exactly those names.
531f1f524848 *** empty log message ***
nipkow
parents: 13587
diff changeset
   764
13899
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   765
* Map: `empty' is no longer a constant but a syntactic abbreviation for
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   766
%x. None. Warning: empty_def now refers to the previously hidden definition
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   767
of the empty set.
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   768
14018
3ef6c509f29c Improved entry on Algebra.
ballarin
parents: 14011
diff changeset
   769
* Algebra: formalization of classical algebra.  Intended as base for
3ef6c509f29c Improved entry on Algebra.
ballarin
parents: 14011
diff changeset
   770
any algebraic development in Isabelle.  Currently covers group theory
3ef6c509f29c Improved entry on Algebra.
ballarin
parents: 14011
diff changeset
   771
(up to Sylow's theorem) and ring theory (Universal Property of
3ef6c509f29c Improved entry on Algebra.
ballarin
parents: 14011
diff changeset
   772
Univariate Polynomials).  Contributions welcome;
13960
70f9158b6695 Complex, etc
paulson
parents: 13954
diff changeset
   773
70f9158b6695 Complex, etc
paulson
parents: 13954
diff changeset
   774
* GroupTheory: deleted, since its material has been moved to Algebra;
70f9158b6695 Complex, etc
paulson
parents: 13954
diff changeset
   775
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   776
* Complex: new directory of the complex numbers with numeric constants,
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   777
nonstandard complex numbers, and some complex analysis, standard and
13966
2160abf7cfe7 removal of the image HOL-Real and merging of HOL-Real-ex with HOL-Complex-ex
paulson
parents: 13960
diff changeset
   778
nonstandard (Jacques Fleuriot);
2160abf7cfe7 removal of the image HOL-Real and merging of HOL-Real-ex with HOL-Complex-ex
paulson
parents: 13960
diff changeset
   779
2160abf7cfe7 removal of the image HOL-Real and merging of HOL-Real-ex with HOL-Complex-ex
paulson
parents: 13960
diff changeset
   780
* HOL-Complex: new image for analysis, replacing HOL-Real and HOL-Hyperreal;
2160abf7cfe7 removal of the image HOL-Real and merging of HOL-Real-ex with HOL-Complex-ex
paulson
parents: 13960
diff changeset
   781
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   782
* Hyperreal: introduced Gauge integration and hyperreal logarithms (Jacques
13966
2160abf7cfe7 removal of the image HOL-Real and merging of HOL-Real-ex with HOL-Complex-ex
paulson
parents: 13960
diff changeset
   783
Fleuriot);
13960
70f9158b6695 Complex, etc
paulson
parents: 13954
diff changeset
   784
13549
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   785
* Real/HahnBanach: updated and adapted to locales;
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   786
13995
ab988a7a8a3b NEWS updated for HOL-Algebra.
ballarin
parents: 13966
diff changeset
   787
* NumberTheory: added Gauss's law of quadratic reciprocity (by Avigad,
ab988a7a8a3b NEWS updated for HOL-Algebra.
ballarin
parents: 13966
diff changeset
   788
Gray and Kramer);
13872
601514e63534 Gauss, UNITY, ZF
paulson
parents: 13868
diff changeset
   789
601514e63534 Gauss, UNITY, ZF
paulson
parents: 13868
diff changeset
   790
* UNITY: added the Meier-Sanders theory of progress sets;
601514e63534 Gauss, UNITY, ZF
paulson
parents: 13868
diff changeset
   791
14011
5fa103f5618c MicroJava LBV
kleing
parents: 14010
diff changeset
   792
* MicroJava: bytecode verifier and lightweight bytecode verifier
5fa103f5618c MicroJava LBV
kleing
parents: 14010
diff changeset
   793
as abstract algorithms, instantiated to the JVM;
5fa103f5618c MicroJava LBV
kleing
parents: 14010
diff changeset
   794
14010
schirmer
parents: 14008
diff changeset
   795
* Bali: Java source language formalization. Type system, operational
schirmer
parents: 14008
diff changeset
   796
semantics, axiomatic semantics. Supported language features:
schirmer
parents: 14008
diff changeset
   797
classes, interfaces, objects,virtual methods, static methods,
schirmer
parents: 14008
diff changeset
   798
static/instance fields, arrays, access modifiers, definite
schirmer
parents: 14008
diff changeset
   799
assignment, exceptions.
13549
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   800
14011
5fa103f5618c MicroJava LBV
kleing
parents: 14010
diff changeset
   801
13549
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   802
*** ZF ***
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   803
15154
db582d6e89de new isatool dimacs2hol
webertj
parents: 15148
diff changeset
   804
* ZF/Constructible: consistency proof for AC (Gdel's constructible
13549
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   805
universe, etc.);
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   806
13872
601514e63534 Gauss, UNITY, ZF
paulson
parents: 13868
diff changeset
   807
* Main ZF: virtually all theories converted to new-style format;
13518
a0749ce05100 *** empty log message ***
nipkow
parents: 13500
diff changeset
   808
13280
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents: 13190
diff changeset
   809
13478
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   810
*** ML ***
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   811
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   812
* Pure: Tactic.prove provides sane interface for internal proofs;
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   813
omits the infamous "standard" operation, so this is more appropriate
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   814
than prove_goalw_cterm in many situations (e.g. in simprocs);
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   815
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   816
* Pure: improved error reporting of simprocs;
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   817
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   818
* Provers: Simplifier.simproc(_i) provides sane interface for setting
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   819
up simprocs;
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   820
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   821
13953
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   822
*** Document preparation ***
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   823
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   824
* uses \par instead of \\ for line breaks in theory text. This may
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   825
shift some page breaks in large documents. To get the old behaviour
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   826
use \renewcommand{\isanewline}{\mbox{}\\\mbox{}} in root.tex.
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   827
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   828
* minimized dependencies of isabelle.sty and isabellesym.sty on
13953
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   829
other packages
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   830
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   831
* \<euro> now needs package babel/greek instead of marvosym (which
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   832
broke \Rightarrow)
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   833
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   834
* normal size for \<zero>...\<nine> (uses \mathbf instead of
13954
2e989faba65a fixed \<0>..\<9> (-> \<zero>..\<nine>)
kleing
parents: 13953
diff changeset
   835
textcomp package)
13953
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   836
13280
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents: 13190
diff changeset
   837
14572
wenzelm
parents: 14561
diff changeset
   838
12984
6071200efbf6 fixed date;
wenzelm
parents: 12964
diff changeset
   839
New in Isabelle2002 (March 2002)
6071200efbf6 fixed date;
wenzelm
parents: 12964
diff changeset
   840
--------------------------------
11474
wenzelm
parents: 11437
diff changeset
   841
11572
wenzelm
parents: 11551
diff changeset
   842
*** Document preparation ***
wenzelm
parents: 11551
diff changeset
   843
11842
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   844
* greatly simplified document preparation setup, including more
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   845
graceful interpretation of isatool usedir -i/-d/-D options, and more
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   846
instructive isatool mkdir; users should basically be able to get
12899
7d5b690253ee "isatool usedir -D output HOL Test && isatool document Test/output";
wenzelm
parents: 12889
diff changeset
   847
started with "isatool mkdir HOL Test && isatool make"; alternatively,
7d5b690253ee "isatool usedir -D output HOL Test && isatool document Test/output";
wenzelm
parents: 12889
diff changeset
   848
users may run a separate document processing stage manually like this:
7d5b690253ee "isatool usedir -D output HOL Test && isatool document Test/output";
wenzelm
parents: 12889
diff changeset
   849
"isatool usedir -D output HOL Test && isatool document Test/output";
11842
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   850
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   851
* theory dependency graph may now be incorporated into documents;
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   852
isatool usedir -g true will produce session_graph.eps/.pdf for use
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   853
with \includegraphics of LaTeX;
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   854
11864
371ce685b0ec * proper spacing of consecutive markup elements, especially text
wenzelm
parents: 11842
diff changeset
   855
* proper spacing of consecutive markup elements, especially text
371ce685b0ec * proper spacing of consecutive markup elements, especially text
wenzelm
parents: 11842
diff changeset
   856
blocks after section headings;
371ce685b0ec * proper spacing of consecutive markup elements, especially text
wenzelm
parents: 11842
diff changeset
   857
11572
wenzelm
parents: 11551
diff changeset
   858
* support bold style (for single symbols only), input syntax is like
wenzelm
parents: 11551
diff changeset
   859
this: "\<^bold>\<alpha>" or "\<^bold>A";
wenzelm
parents: 11551
diff changeset
   860
11814
wenzelm
parents: 11802
diff changeset
   861
* \<bullet> is now output as bold \cdot by default, which looks much
11572
wenzelm
parents: 11551
diff changeset
   862
better in printed text;
wenzelm
parents: 11551
diff changeset
   863
11712
deb8cac87063 * added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
wenzelm
parents: 11702
diff changeset
   864
* added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
deb8cac87063 * added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
wenzelm
parents: 11702
diff changeset
   865
note that these symbols are currently unavailable in Proof General /
12769
wenzelm
parents: 12754
diff changeset
   866
X-Symbol; new symbols \<zero>, \<one>, ..., \<nine>, and \<euro>;
12690
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
   867
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
   868
* isatool latex no longer depends on changed TEXINPUTS, instead
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
   869
isatool document copies the Isabelle style files to the target
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
   870
location;
11712
deb8cac87063 * added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
wenzelm
parents: 11702
diff changeset
   871
11572
wenzelm
parents: 11551
diff changeset
   872
11633
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   873
*** Isar ***
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   874
12312
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   875
* Pure/Provers: improved proof by cases and induction;
12280
wenzelm
parents: 12253
diff changeset
   876
  - 'case' command admits impromptu naming of parameters (such as
wenzelm
parents: 12253
diff changeset
   877
    "case (Suc n)");
wenzelm
parents: 12253
diff changeset
   878
  - 'induct' method divinates rule instantiation from the inductive
wenzelm
parents: 12253
diff changeset
   879
    claim; no longer requires excessive ?P bindings for proper
wenzelm
parents: 12253
diff changeset
   880
    instantiation of cases;
wenzelm
parents: 12253
diff changeset
   881
  - 'induct' method properly enumerates all possibilities of set/type
wenzelm
parents: 12253
diff changeset
   882
    rules; as a consequence facts may be also passed through *type*
wenzelm
parents: 12253
diff changeset
   883
    rules without further ado;
wenzelm
parents: 12253
diff changeset
   884
  - 'induct' method now derives symbolic cases from the *rulified*
wenzelm
parents: 12253
diff changeset
   885
    rule (before it used to rulify cases stemming from the internal
wenzelm
parents: 12253
diff changeset
   886
    atomized version); this means that the context of a non-atomic
wenzelm
parents: 12253
diff changeset
   887
    statement becomes is included in the hypothesis, avoiding the
wenzelm
parents: 12253
diff changeset
   888
    slightly cumbersome show "PROP ?case" form;
wenzelm
parents: 12253
diff changeset
   889
  - 'induct' may now use elim-style induction rules without chaining
wenzelm
parents: 12253
diff changeset
   890
    facts, using ``missing'' premises from the goal state; this allows
wenzelm
parents: 12253
diff changeset
   891
    rules stemming from inductive sets to be applied in unstructured
wenzelm
parents: 12253
diff changeset
   892
    scripts, while still benefitting from proper handling of non-atomic
wenzelm
parents: 12253
diff changeset
   893
    statements; NB: major inductive premises need to be put first, all
wenzelm
parents: 12253
diff changeset
   894
    the rest of the goal is passed through the induction;
wenzelm
parents: 12253
diff changeset
   895
  - 'induct' proper support for mutual induction involving non-atomic
wenzelm
parents: 12253
diff changeset
   896
    rule statements (uses the new concept of simultaneous goals, see
wenzelm
parents: 12253
diff changeset
   897
    below);
12853
de505273c971 Isar cases/induct: no backtracking;
wenzelm
parents: 12850
diff changeset
   898
  - append all possible rule selections, but only use the first
de505273c971 Isar cases/induct: no backtracking;
wenzelm
parents: 12850
diff changeset
   899
    success (no backtracking);
11995
4a622f5fb164 - 'induct' may now use elim-style induction rules without chaining
wenzelm
parents: 11986
diff changeset
   900
  - removed obsolete "(simplified)" and "(stripped)" options of methods;
12754
044a59921f3b Isar: undeclared rule case names default to numbers 1, 2, 3, ...;
wenzelm
parents: 12753
diff changeset
   901
  - undeclared rule case names default to numbers 1, 2, 3, ...;
044a59921f3b Isar: undeclared rule case names default to numbers 1, 2, 3, ...;
wenzelm
parents: 12753
diff changeset
   902
  - added 'print_induct_rules' (covered by help item in recent Proof
044a59921f3b Isar: undeclared rule case names default to numbers 1, 2, 3, ...;
wenzelm
parents: 12753
diff changeset
   903
    General versions);
11995
4a622f5fb164 - 'induct' may now use elim-style induction rules without chaining
wenzelm
parents: 11986
diff changeset
   904
  - moved induct/cases attributes to Pure, methods to Provers;
4a622f5fb164 - 'induct' may now use elim-style induction rules without chaining
wenzelm
parents: 11986
diff changeset
   905
  - generic method setup instantiated for FOL and HOL;
11986
26b95a6f3f79 - 'induct' method now derives symbolic cases from the *rulified* rule
wenzelm
parents: 11965
diff changeset
   906
12163
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   907
* Pure: support multiple simultaneous goal statements, for example
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   908
"have a: A and b: B" (same for 'theorem' etc.); being a pure
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   909
meta-level mechanism, this acts as if several individual goals had
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   910
been stated separately; in particular common proof methods need to be
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   911
repeated in order to cover all claims; note that a single elimination
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   912
step is *not* sufficient to establish the two conjunctions, so this
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   913
fails:
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   914
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   915
  assume "A & B" then have A and B ..   (*".." fails*)
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   916
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   917
better use "obtain" in situations as above; alternative refer to
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   918
multi-step methods like 'auto', 'simp_all', 'blast+' etc.;
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   919
12078
4eb8061286e5 * Isar/Pure: proper integration with ``locales''; unlike the original
wenzelm
parents: 12034
diff changeset
   920
* Pure: proper integration with ``locales''; unlike the original
15154
db582d6e89de new isatool dimacs2hol
webertj
parents: 15148
diff changeset
   921
version by Florian Kammller, Isar locales package high-level proof
12078
4eb8061286e5 * Isar/Pure: proper integration with ``locales''; unlike the original
wenzelm
parents: 12034
diff changeset
   922
contexts rather than raw logical ones (e.g. we admit to include
12280
wenzelm
parents: 12253
diff changeset
   923
attributes everywhere); operations on locales include merge and
12964
wenzelm
parents: 12924
diff changeset
   924
rename; support for implicit arguments (``structures''); simultaneous
wenzelm
parents: 12924
diff changeset
   925
type-inference over imports and text; see also HOL/ex/Locales.thy for
wenzelm
parents: 12924
diff changeset
   926
some examples;
12078
4eb8061286e5 * Isar/Pure: proper integration with ``locales''; unlike the original
wenzelm
parents: 12034
diff changeset
   927
12707
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   928
* Pure: the following commands have been ``localized'', supporting a
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   929
target locale specification "(in name)": 'lemma', 'theorem',
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   930
'corollary', 'lemmas', 'theorems', 'declare'; the results will be
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   931
stored both within the locale and at the theory level (exported and
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   932
qualified by the locale name);
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   933
12964
wenzelm
parents: 12924
diff changeset
   934
* Pure: theory goals may now be specified in ``long'' form, with
wenzelm
parents: 12924
diff changeset
   935
ad-hoc contexts consisting of arbitrary locale elements. for example
wenzelm
parents: 12924
diff changeset
   936
``lemma foo: fixes x assumes "A x" shows "B x"'' (local syntax and
wenzelm
parents: 12924
diff changeset
   937
definitions may be given, too); the result is a meta-level rule with
wenzelm
parents: 12924
diff changeset
   938
the context elements being discharged in the obvious way;
wenzelm
parents: 12924
diff changeset
   939
wenzelm
parents: 12924
diff changeset
   940
* Pure: new proof command 'using' allows to augment currently used
wenzelm
parents: 12924
diff changeset
   941
facts after a goal statement ('using' is syntactically analogous to
wenzelm
parents: 12924
diff changeset
   942
'apply', but acts on the goal's facts only); this allows chained facts
wenzelm
parents: 12924
diff changeset
   943
to be separated into parts given before and after a claim, as in
wenzelm
parents: 12924
diff changeset
   944
``from a and b have C using d and e <proof>'';
12078
4eb8061286e5 * Isar/Pure: proper integration with ``locales''; unlike the original
wenzelm
parents: 12034
diff changeset
   945
11722
78cf55fd57c6 * Isar/Pure: fixed 'token_translation' command;
wenzelm
parents: 11712
diff changeset
   946
* Pure: renamed "antecedent" case to "rule_context";
78cf55fd57c6 * Isar/Pure: fixed 'token_translation' command;
wenzelm
parents: 11712
diff changeset
   947
12964
wenzelm
parents: 12924
diff changeset
   948
* Pure: new 'judgment' command records explicit information about the
wenzelm
parents: 12924
diff changeset
   949
object-logic embedding (used by several tools internally); no longer
wenzelm
parents: 12924
diff changeset
   950
use hard-wired "Trueprop";
wenzelm
parents: 12924
diff changeset
   951
11738
7c7a902a5c65 * Pure: added 'corollary' command;
wenzelm
parents: 11722
diff changeset
   952
* Pure: added 'corollary' command;
7c7a902a5c65 * Pure: added 'corollary' command;
wenzelm
parents: 11722
diff changeset
   953
11722
78cf55fd57c6 * Isar/Pure: fixed 'token_translation' command;
wenzelm
parents: 11712
diff changeset
   954
* Pure: fixed 'token_translation' command;
78cf55fd57c6 * Isar/Pure: fixed 'token_translation' command;
wenzelm
parents: 11712
diff changeset
   955
11899
e543b0f01a58 * Pure: removed obsolete 'exported' attribute;
wenzelm
parents: 11864
diff changeset
   956
* Pure: removed obsolete 'exported' attribute;
e543b0f01a58 * Pure: removed obsolete 'exported' attribute;
wenzelm
parents: 11864
diff changeset
   957
11933
wenzelm
parents: 11930
diff changeset
   958
* Pure: dummy pattern "_" in is/let is now automatically lifted over
wenzelm
parents: 11930
diff changeset
   959
bound variables: "ALL x. P x --> Q x" (is "ALL x. _ --> ?C x")
11899
e543b0f01a58 * Pure: removed obsolete 'exported' attribute;
wenzelm
parents: 11864
diff changeset
   960
supersedes more cumbersome ... (is "ALL x. _ x --> ?C x");
e543b0f01a58 * Pure: removed obsolete 'exported' attribute;
wenzelm
parents: 11864
diff changeset
   961
11952
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
   962
* Pure: method 'atomize' presents local goal premises as object-level
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
   963
statements (atomic meta-level propositions); setup controlled via
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
   964
rewrite rules declarations of 'atomize' attribute; example
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
   965
application: 'induct' method with proper rule statements in improper
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
   966
proof *scripts*;
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
   967
12106
4a8558dbb6a0 * Isar/Pure: emulation of instantiation tactics (rule_tac, cut_tac,
wenzelm
parents: 12078
diff changeset
   968
* Pure: emulation of instantiation tactics (rule_tac, cut_tac, etc.)
4a8558dbb6a0 * Isar/Pure: emulation of instantiation tactics (rule_tac, cut_tac,
wenzelm
parents: 12078
diff changeset
   969
now consider the syntactic context of assumptions, giving a better
4a8558dbb6a0 * Isar/Pure: emulation of instantiation tactics (rule_tac, cut_tac,
wenzelm
parents: 12078
diff changeset
   970
chance to get type-inference of the arguments right (this is
4a8558dbb6a0 * Isar/Pure: emulation of instantiation tactics (rule_tac, cut_tac,
wenzelm
parents: 12078
diff changeset
   971
especially important for locales);
4a8558dbb6a0 * Isar/Pure: emulation of instantiation tactics (rule_tac, cut_tac,
wenzelm
parents: 12078
diff changeset
   972
12312
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   973
* Pure: "sorry" no longer requires quick_and_dirty in interactive
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   974
mode;
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   975
12405
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   976
* Pure/obtain: the formal conclusion "thesis", being marked as
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   977
``internal'', may no longer be reference directly in the text;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   978
potential INCOMPATIBILITY, may need to use "?thesis" in rare
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   979
situations;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   980
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   981
* Pure: generic 'sym' attribute which declares a rule both as pure
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   982
'elim?' and for the 'symmetric' operation;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   983
12877
b9635eb8a448 * Isar/Pure: marginal comments ``--'' may now occur just anywhere in the text;
wenzelm
parents: 12853
diff changeset
   984
* Pure: marginal comments ``--'' may now occur just anywhere in the
b9635eb8a448 * Isar/Pure: marginal comments ``--'' may now occur just anywhere in the text;
wenzelm
parents: 12853
diff changeset
   985
text; the fixed correlation with particular command syntax has been
b9635eb8a448 * Isar/Pure: marginal comments ``--'' may now occur just anywhere in the text;
wenzelm
parents: 12853
diff changeset
   986
discontinued;
b9635eb8a448 * Isar/Pure: marginal comments ``--'' may now occur just anywhere in the text;
wenzelm
parents: 12853
diff changeset
   987
13023
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
   988
* Pure: new method 'rules' is particularly well-suited for proof
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
   989
search in intuitionistic logic; a bit slower than 'blast' or 'fast',
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
   990
but often produces more compact proof terms with less detours;
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
   991
12364
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   992
* Pure/Provers/classical: simplified integration with pure rule
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   993
attributes and methods; the classical "intro?/elim?/dest?"
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   994
declarations coincide with the pure ones; the "rule" method no longer
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   995
includes classically swapped intros; "intro" and "elim" methods no
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   996
longer pick rules from the context; also got rid of ML declarations
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   997
AddXIs/AddXEs/AddXDs; all of this has some potential for
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   998
INCOMPATIBILITY;
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   999
12405
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
  1000
* Provers/classical: attribute 'swapped' produces classical inversions
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
  1001
of introduction rules;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
  1002
12364
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
  1003
* Provers/simplifier: 'simplified' attribute may refer to explicit
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
  1004
rules instead of full simplifier context; 'iff' attribute handles
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
  1005
conditional rules;
11936
fef099613354 * Provers: 'simplified' attribute may refer to explicit rules instead
wenzelm
parents: 11933
diff changeset
  1006
11745
06cd8c3b5487 * HOL: 'typedef' now allows alternative names for Rep/Abs morphisms;
wenzelm
parents: 11738
diff changeset
  1007
* HOL: 'typedef' now allows alternative names for Rep/Abs morphisms;
06cd8c3b5487 * HOL: 'typedef' now allows alternative names for Rep/Abs morphisms;
wenzelm
parents: 11738
diff changeset
  1008
11690
cb64368fb405 improved proof by cases and induction;
wenzelm
parents: 11663
diff changeset
  1009
* HOL: 'recdef' now fails on unfinished automated proofs, use
11633
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
  1010
"(permissive)" option to recover old behavior;
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
  1011
11933
wenzelm
parents: 11930
diff changeset
  1012
* HOL: 'inductive' no longer features separate (collective) attributes
wenzelm
parents: 11930
diff changeset
  1013
for 'intros' (was found too confusing);
wenzelm
parents: 11930
diff changeset
  1014
12405
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
  1015
* HOL: properly declared induction rules less_induct and
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
  1016
wf_induct_rule;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
  1017
11788
60054fee3c16 canonical 'cases'/'induct' rules for n-tuples (n=3..7)
kleing
parents: 11745
diff changeset
  1018
11474
wenzelm
parents: 11437
diff changeset
  1019
*** HOL ***
wenzelm
parents: 11437
diff changeset
  1020
11702
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1021
* HOL: moved over to sane numeral syntax; the new policy is as
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1022
follows:
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1023
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1024
  - 0 and 1 are polymorphic constants, which are defined on any
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1025
  numeric type (nat, int, real etc.);
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1026
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1027
  - 2, 3, 4, ... and -1, -2, -3, ... are polymorphic numerals, based
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1028
  binary representation internally;
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1029
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1030
  - type nat has special constructor Suc, and generally prefers Suc 0
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1031
  over 1::nat and Suc (Suc 0) over 2::nat;
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1032
12364
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
  1033
This change may cause significant problems of INCOMPATIBILITY; here
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
  1034
are some hints on converting existing sources:
11702
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1035
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1036
  - due to the new "num" token, "-0" and "-1" etc. are now atomic
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1037
  entities, so expressions involving "-" (unary or binary minus) need
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1038
  to be spaced properly;
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1039
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1040
  - existing occurrences of "1" may need to be constraint "1::nat" or
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1041
  even replaced by Suc 0; similar for old "2";
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1042
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1043
  - replace "#nnn" by "nnn", and "#-nnn" by "-nnn";
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1044
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1045
  - remove all special provisions on numerals in proofs;
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1046
13042
wenzelm
parents: 13025
diff changeset
  1047
* HOL: simp rules nat_number expand numerals on nat to Suc/0
12837
74ce01905e57 * HOL: nat_number_of;
wenzelm
parents: 12832
diff changeset
  1048
representation (depends on bin_arith_simps in the default context);
74ce01905e57 * HOL: nat_number_of;
wenzelm
parents: 12832
diff changeset
  1049
12736
80f10551fb59 * HOL: symbolic syntax for x^2 (numeral 2);
wenzelm
parents: 12734
diff changeset
  1050
* HOL: symbolic syntax for x^2 (numeral 2);
80f10551fb59 * HOL: symbolic syntax for x^2 (numeral 2);
wenzelm
parents: 12734
diff changeset
  1051
12335
db4d5f498742 * HOL: the class of all HOL types is now called "type" rather than
wenzelm
parents: 12312
diff changeset
  1052
* HOL: the class of all HOL types is now called "type" rather than
db4d5f498742 * HOL: the class of all HOL types is now called "type" rather than
wenzelm
parents: 12312
diff changeset
  1053
"term"; INCOMPATIBILITY, need to adapt references to this type class
db4d5f498742 * HOL: the class of all HOL types is now called "type" rather than
wenzelm
parents: 12312
diff changeset
  1054
in axclass/classes, instance/arities, and (usually rare) occurrences
db4d5f498742 * HOL: the class of all HOL types is now called "type" rather than
wenzelm
parents: 12312
diff changeset
  1055
in typings (of consts etc.); internally the class is called
db4d5f498742 * HOL: the class of all HOL types is now called "type" rather than
wenzelm
parents: 12312
diff changeset
  1056
"HOL.type", ML programs should refer to HOLogic.typeS;
db4d5f498742 * HOL: the class of all HOL types is now called "type" rather than
wenzelm
parents: 12312
diff changeset
  1057
12280
wenzelm
parents: 12253
diff changeset
  1058
* HOL/record package improvements:
wenzelm
parents: 12253
diff changeset
  1059
  - new derived operations "fields" to build a partial record section,
wenzelm
parents: 12253
diff changeset
  1060
    "extend" to promote a fixed record to a record scheme, and
wenzelm
parents: 12253
diff changeset
  1061
    "truncate" for the reverse; cf. theorems "xxx.defs", which are *not*
wenzelm
parents: 12253
diff changeset
  1062
    declared as simp by default;
12587
3f3d2ffb5df5 HOL/record: shared operations ("more", "fields", etc.) now need to be
wenzelm
parents: 12564
diff changeset
  1063
  - shared operations ("more", "fields", etc.) now need to be always
3f3d2ffb5df5 HOL/record: shared operations ("more", "fields", etc.) now need to be
wenzelm
parents: 12564
diff changeset
  1064
    qualified) --- potential INCOMPATIBILITY;
12280
wenzelm
parents: 12253
diff changeset
  1065
  - removed "make_scheme" operations (use "make" with "extend") --
wenzelm
parents: 12253
diff changeset
  1066
    INCOMPATIBILITY;
11937
2a2b1182a23b * HOL/record:
wenzelm
parents: 11936
diff changeset
  1067
  - removed "more" class (simply use "term") -- INCOMPATIBILITY;
12253
1886dc96b7e9 * HOL/record: cases/induct for more parts;
wenzelm
parents: 12245
diff changeset
  1068
  - provides cases/induct rules for use with corresponding Isar
1886dc96b7e9 * HOL/record: cases/induct for more parts;
wenzelm
parents: 12245
diff changeset
  1069
    methods (for concrete records, record schemes, concrete more
12280
wenzelm
parents: 12253
diff changeset
  1070
    parts, and schematic more parts -- in that order);
11930
1accec985349 * HOL/record:
wenzelm
parents: 11921
diff changeset
  1071
  - internal definitions directly based on a light-weight abstract
1accec985349 * HOL/record:
wenzelm
parents: 11921
diff changeset
  1072
    theory of product types over typedef rather than datatype;
1accec985349 * HOL/record:
wenzelm
parents: 11921
diff changeset
  1073
13023
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
  1074
* HOL: generic code generator for generating executable ML code from
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
  1075
specifications; specific support for HOL constructs such as inductive
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
  1076
datatypes and sets, as well as recursive functions; can be invoked
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
  1077
via 'generate_code' theory section;
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
  1078
11933
wenzelm
parents: 11930
diff changeset
  1079
* HOL: canonical cases/induct rules for n-tuples (n = 3..7);
wenzelm
parents: 11930
diff changeset
  1080
13824
e4d8dea6dfc2 minor updates to pre-2002 release
paulson
parents: 13815
diff changeset
  1081
* HOL: consolidated and renamed several theories.  In particular:
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
  1082
        Ord.thy has been absorbed into HOL.thy
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
  1083
        String.thy has been absorbed into List.thy
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
  1084
11802
1d5f5d2427d2 * HOL: concrete setsum syntax "\<Sum>i:A. b" == "setsum (%i. b) A"
wenzelm
parents: 11797
diff changeset
  1085
* HOL: concrete setsum syntax "\<Sum>i:A. b" == "setsum (%i. b) A"
1d5f5d2427d2 * HOL: concrete setsum syntax "\<Sum>i:A. b" == "setsum (%i. b) A"
wenzelm
parents: 11797
diff changeset
  1086
(beware of argument permutation!);
1d5f5d2427d2 * HOL: concrete setsum syntax "\<Sum>i:A. b" == "setsum (%i. b) A"
wenzelm
parents: 11797
diff changeset
  1087
11657
03c4a5c08a79 *** empty log message ***
wenzelm
parents: 11633
diff changeset
  1088
* HOL: linorder_less_split superseded by linorder_cases;
03c4a5c08a79 *** empty log message ***
wenzelm
parents: 11633
diff changeset
  1089
12917
0fd3caa5d8b2 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12899
diff changeset
  1090
* HOL/List: "nodups" renamed to "distinct";
12889
1de4f0b824a8 *** empty log message ***
nipkow
parents: 12877
diff changeset
  1091
11633
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
  1092
* HOL: added "The" definite description operator; move Hilbert's "Eps"
13824
e4d8dea6dfc2 minor updates to pre-2002 release
paulson
parents: 13815
diff changeset
  1093
to peripheral theory "Hilbert_Choice"; some INCOMPATIBILITIES:
e4d8dea6dfc2 minor updates to pre-2002 release
paulson
parents: 13815
diff changeset
  1094
  - Ex_def has changed, now need to use some_eq_ex
11437
2338bce575ae HOL: added "The";
wenzelm
parents: 11397
diff changeset
  1095
11572
wenzelm
parents: 11551
diff changeset
  1096
* HOL: made split_all_tac safe; EXISTING PROOFS MAY FAIL OR LOOP, so
wenzelm
parents: 11551
diff changeset
  1097
in this (rare) case use:
wenzelm
parents: 11551
diff changeset
  1098
wenzelm
parents: 11551
diff changeset
  1099
  delSWrapper "split_all_tac"
wenzelm
parents: 11551
diff changeset
  1100
  addSbefore ("unsafe_split_all_tac", unsafe_split_all_tac)
wenzelm
parents: 11551
diff changeset
  1101
wenzelm
parents: 11551
diff changeset
  1102
* HOL: added safe wrapper "split_conv_tac" to claset; EXISTING PROOFS
11474
wenzelm
parents: 11437
diff changeset
  1103
MAY FAIL;
11361
879e53d92f51 *** empty log message ***
nipkow
parents: 11314
diff changeset
  1104
11572
wenzelm
parents: 11551
diff changeset
  1105
* HOL: introduced f^n = f o ... o f; warning: due to the limits of
wenzelm
parents: 11551
diff changeset
  1106
Isabelle's type classes, ^ on functions and relations has too general
wenzelm
parents: 11551
diff changeset
  1107
a domain, namely ('a * 'b) set and 'a => 'b; this means that it may be
wenzelm
parents: 11551
diff changeset
  1108
necessary to attach explicit type constraints;
11307
891fbd3f4881 *** empty log message ***
nipkow
parents: 11241
diff changeset
  1109
12917
0fd3caa5d8b2 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12899
diff changeset
  1110
* HOL/Relation: the prefix name of the infix "O" has been changed from
0fd3caa5d8b2 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12899
diff changeset
  1111
"comp" to "rel_comp"; INCOMPATIBILITY: a few theorems have been
0fd3caa5d8b2 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12899
diff changeset
  1112
renamed accordingly (eg "compI" -> "rel_compI").
12489
c92e38c3cbaa *** empty log message ***
nipkow
parents: 12472
diff changeset
  1113
11487
95071c9e85a3 * HOL: syntax translations now work properly with numerals and records
wenzelm
parents: 11475
diff changeset
  1114
* HOL: syntax translations now work properly with numerals and records
95071c9e85a3 * HOL: syntax translations now work properly with numerals and records
wenzelm
parents: 11475
diff changeset
  1115
expressions;
11474
wenzelm
parents: 11437
diff changeset
  1116
12457
cbfc53e45476 * HOL: bounded abstraction now uses syntax "%" / "\<lambda>" instead
wenzelm
parents: 12405
diff changeset
  1117
* HOL: bounded abstraction now uses syntax "%" / "\<lambda>" instead
cbfc53e45476 * HOL: bounded abstraction now uses syntax "%" / "\<lambda>" instead
wenzelm
parents: 12405
diff changeset
  1118
of "lam" -- INCOMPATIBILITY;
11474
wenzelm
parents: 11437
diff changeset
  1119
11933
wenzelm
parents: 11930
diff changeset
  1120
* HOL: got rid of some global declarations (potential INCOMPATIBILITY
wenzelm
parents: 11930
diff changeset
  1121
for ML tools): const "()" renamed "Product_Type.Unity", type "unit"
wenzelm
parents: 11930
diff changeset
  1122
renamed "Product_Type.unit";
11611
b0c69f4db64c HOL: eliminated global items;
wenzelm
parents: 11572
diff changeset
  1123
12564
226873bffa3a *** empty log message ***
nipkow
parents: 12563
diff changeset
  1124
* HOL: renamed rtrancl_into_rtrancl2 to converse_rtrancl_into_rtrancl
226873bffa3a *** empty log message ***
nipkow
parents: 12563
diff changeset
  1125
12924
02eb40cde931 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12917
diff changeset
  1126
* HOL: removed obsolete theorem "optionE" (use "option.exhaust", or
02eb40cde931 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12917
diff changeset
  1127
the "cases" method);
02eb40cde931 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12917
diff changeset
  1128
12597
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
  1129
* HOL/GroupTheory: group theory examples including Sylow's theorem (by
15154
db582d6e89de new isatool dimacs2hol
webertj
parents: 15148
diff changeset
  1130
Florian Kammller);
12597
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
  1131
12608
2df381faa787 * ZF/IMP: updated and converted to new-style theory format;
wenzelm
parents: 12597
diff changeset
  1132
* HOL/IMP: updated and converted to new-style theory format; several
2df381faa787 * ZF/IMP: updated and converted to new-style theory format;
wenzelm
parents: 12597
diff changeset
  1133
parts turned into readable document, with proper Isar proof texts and
2df381faa787 * ZF/IMP: updated and converted to new-style theory format;
wenzelm
parents: 12597
diff changeset
  1134
some explanations (by Gerwin Klein);
12597
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
  1135
12734
c5f6d8259ecd HOL-Real/Complex_Numbers;
wenzelm
parents: 12728
diff changeset
  1136
* HOL-Real: added Complex_Numbers (by Gertrud Bauer);
c5f6d8259ecd HOL-Real/Complex_Numbers;
wenzelm
parents: 12728
diff changeset
  1137
12690
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
  1138
* HOL-Hyperreal is now a logic image;
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
  1139
11611
b0c69f4db64c HOL: eliminated global items;
wenzelm
parents: 11572
diff changeset
  1140
12022
9c3377b133c0 HOLCF: proper rep_datatype lift (see theory Lift); use plain induct_tac
wenzelm
parents: 11995
diff changeset
  1141
*** HOLCF ***
9c3377b133c0 HOLCF: proper rep_datatype lift (see theory Lift); use plain induct_tac
wenzelm
parents: 11995
diff changeset
  1142
12622
wenzelm
parents: 12608
diff changeset
  1143
* Isar: consts/constdefs supports mixfix syntax for continuous
wenzelm
parents: 12608
diff changeset
  1144
operations;
wenzelm
parents: 12608
diff changeset
  1145
wenzelm
parents: 12608
diff changeset
  1146
* Isar: domain package adapted to new-style theory format, e.g. see
wenzelm
parents: 12608
diff changeset
  1147
HOLCF/ex/Dnat.thy;
wenzelm
parents: 12608
diff changeset
  1148
wenzelm
parents: 12608
diff changeset
  1149
* theory Lift: proper use of rep_datatype lift instead of ML hacks --
12280
wenzelm
parents: 12253
diff changeset
  1150
potential INCOMPATIBILITY; now use plain induct_tac instead of former
wenzelm
parents: 12253
diff changeset
  1151
lift.induct_tac, always use UU instead of Undef;
12022
9c3377b133c0 HOLCF: proper rep_datatype lift (see theory Lift); use plain induct_tac
wenzelm
parents: 11995
diff changeset
  1152
12597
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
  1153
* HOLCF/IMP: updated and converted to new-style theory;
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
  1154
12022
9c3377b133c0 HOLCF: proper rep_datatype lift (see theory Lift); use plain induct_tac
wenzelm
parents: 11995
diff changeset
  1155
11474
wenzelm
parents: 11437
diff changeset
  1156
*** ZF ***
wenzelm
parents: 11437
diff changeset
  1157
12622
wenzelm
parents: 12608
diff changeset
  1158
* Isar: proper integration of logic-specific tools and packages,
wenzelm
parents: 12608
diff changeset
  1159
including theory commands '(co)inductive', '(co)datatype',
wenzelm
parents: 12608
diff changeset
  1160
'rep_datatype', 'inductive_cases', as well as methods 'ind_cases',
wenzelm
parents: 12608
diff changeset
  1161
'induct_tac', 'case_tac', and 'typecheck' (with attribute 'TC');
wenzelm
parents: 12608
diff changeset
  1162
wenzelm
parents: 12608
diff changeset
  1163
* theory Main no longer includes AC; for the Axiom of Choice, base
wenzelm
parents: 12608
diff changeset
  1164
your theory on Main_ZFC;
wenzelm
parents: 12608
diff changeset
  1165
wenzelm
parents: 12608
diff changeset
  1166
* the integer library now covers quotients and remainders, with many
wenzelm
parents: 12608
diff changeset
  1167
laws relating division to addition, multiplication, etc.;
12563
3813bcab493d ZF/Main
paulson
parents: 12538
diff changeset
  1168
12280
wenzelm
parents: 12253
diff changeset
  1169
* ZF/UNITY: Chandy and Misra's UNITY is now available in ZF, giving a
wenzelm
parents: 12253
diff changeset
  1170
typeless version of the formalism;
wenzelm
parents: 12253
diff changeset
  1171
13025
wenzelm
parents: 13023
diff changeset
  1172
* ZF/AC, Coind, IMP, Resid: updated and converted to new-style theory
wenzelm
parents: 13023
diff changeset
  1173
format;
12608
2df381faa787 * ZF/IMP: updated and converted to new-style theory format;
wenzelm
parents: 12597
diff changeset
  1174
12280
wenzelm
parents: 12253
diff changeset
  1175
* ZF/Induct: new directory for examples of inductive definitions,
12608
2df381faa787 * ZF/IMP: updated and converted to new-style theory format;
wenzelm
parents: 12597
diff changeset
  1176
including theory Multiset for multiset orderings; converted to
2df381faa787 * ZF/IMP: updated and converted to new-style theory format;
wenzelm
parents: 12597
diff changeset
  1177
new-style theory format;
12177
b1c16d685a99 * ZF: new-style theory commands 'inductive', 'inductive_cases', and
wenzelm
parents: 12163
diff changeset
  1178
13025
wenzelm
parents: 13023
diff changeset
  1179
* ZF: many new theorems about lists, ordinals, etc.;
12850
paulson
parents: 12837
diff changeset
  1180
11474
wenzelm
parents: 11437
diff changeset
  1181
wenzelm
parents: 11437
diff changeset
  1182
*** General ***
wenzelm
parents: 11437
diff changeset
  1183
12280
wenzelm
parents: 12253
diff changeset
  1184
* Pure/kernel: meta-level proof terms (by Stefan Berghofer); reference
wenzelm
parents: 12253
diff changeset
  1185
variable proof controls level of detail: 0 = no proofs (only oracle
wenzelm
parents: 12253
diff changeset
  1186
dependencies), 1 = lemma dependencies, 2 = compact proof terms; see
wenzelm
parents: 12253
diff changeset
  1187
also ref manual for further ML interfaces;
wenzelm
parents: 12253
diff changeset
  1188
wenzelm
parents: 12253
diff changeset
  1189
* Pure/axclass: removed obsolete ML interface
wenzelm
parents: 12253
diff changeset
  1190
goal_subclass/goal_arity;
wenzelm
parents: 12253
diff changeset
  1191
wenzelm
parents: 12253
diff changeset
  1192
* Pure/syntax: new token syntax "num" for plain numerals (without "#"
wenzelm
parents: 12253
diff changeset
  1193
of "xnum"); potential INCOMPATIBILITY, since -0, -1 etc. are now
wenzelm
parents: 12253
diff changeset
  1194
separate tokens, so expressions involving minus need to be spaced
wenzelm
parents: 12253
diff changeset
  1195
properly;
wenzelm
parents: 12253
diff changeset
  1196
12312
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
  1197
* Pure/syntax: support non-oriented infixes, using keyword "infix"
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
  1198
rather than "infixl" or "infixr";
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
  1199
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
  1200
* Pure/syntax: concrete syntax for dummy type variables admits genuine
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
  1201
sort constraint specifications in type inference; e.g. "x::_::foo"
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
  1202
ensures that the type of "x" is of sort "foo" (but not necessarily a
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
  1203
type variable);
12280
wenzelm
parents: 12253
diff changeset
  1204
wenzelm
parents: 12253
diff changeset
  1205
* Pure/syntax: print modes "type_brackets" and "no_type_brackets"
wenzelm
parents: 12253
diff changeset
  1206
control output of nested => (types); the default behavior is
wenzelm
parents: 12253
diff changeset
  1207
"type_brackets";
wenzelm
parents: 12253
diff changeset
  1208
wenzelm
parents: 12253
diff changeset
  1209
* Pure/syntax: builtin parse translation for "_constify" turns valued
11817
wenzelm
parents: 11814
diff changeset
  1210
tokens into AST constants;
11474
wenzelm
parents: 11437
diff changeset
  1211
12280
wenzelm
parents: 12253
diff changeset
  1212
* Pure/syntax: prefer later declarations of translations and print
wenzelm
parents: 12253
diff changeset
  1213
translation functions; potential INCOMPATIBILITY: need to reverse
wenzelm
parents: 12253
diff changeset
  1214
multiple declarations for same syntax element constant;
wenzelm
parents: 12253
diff changeset
  1215
12832
c31b44286a8a * Pure/show_hyps reset by default (in accordance to existing Isar practice);
wenzelm
parents: 12777
diff changeset
  1216
* Pure/show_hyps reset by default (in accordance to existing Isar
c31b44286a8a * Pure/show_hyps reset by default (in accordance to existing Isar practice);
wenzelm
parents: 12777
diff changeset
  1217
practice);
c31b44286a8a * Pure/show_hyps reset by default (in accordance to existing Isar practice);
wenzelm
parents: 12777
diff changeset
  1218
12280
wenzelm
parents: 12253
diff changeset
  1219
* Provers/classical: renamed addaltern to addafter, addSaltern to
wenzelm
parents: 12253
diff changeset
  1220
addSafter;
wenzelm
parents: 12253
diff changeset
  1221
wenzelm
parents: 12253
diff changeset
  1222
* Provers/clasimp: ``iff'' declarations now handle conditional rules
wenzelm
parents: 12253
diff changeset
  1223
as well;
12253
1886dc96b7e9 * HOL/record: cases/induct for more parts;
wenzelm
parents: 12245
diff changeset
  1224
12538
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
  1225
* system: tested support for MacOS X; should be able to get Isabelle +
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
  1226
Proof General to work in a plain Terminal after installing Poly/ML
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
  1227
(e.g. from the Isabelle distribution area) and GNU bash alone
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
  1228
(e.g. from http://www.apple.com); full X11, XEmacs and X-Symbol
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
  1229
support requires further installations, e.g. from
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
  1230
http://fink.sourceforge.net/);
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
  1231
12280
wenzelm
parents: 12253
diff changeset
  1232
* system: support Poly/ML 4.1.1 (able to manage larger heaps);
11551
8b5064d1c5c9 * system: support Poly/ML 4.1.1 (large heaps);
wenzelm
parents: 11549
diff changeset
  1233
12753
3a62df7ae926 * system: reduced base memory usage by Poly/ML (approx. 20 MB instead
wenzelm
parents: 12736
diff changeset
  1234
* system: reduced base memory usage by Poly/ML (approx. 20 MB instead
3a62df7ae926 * system: reduced base memory usage by Poly/ML (approx. 20 MB instead
wenzelm
parents: 12736
diff changeset
  1235
of 40 MB), cf. ML_OPTIONS;
3a62df7ae926 * system: reduced base memory usage by Poly/ML (approx. 20 MB instead
wenzelm
parents: 12736
diff changeset
  1236
11633
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
  1237
* system: Proof General keywords specification is now part of the
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
  1238
Isabelle distribution (see etc/isar-keywords.el);
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
  1239
12728
wenzelm
parents: 12724
diff changeset
  1240
* system: support for persistent Proof General sessions (refrain from
wenzelm
parents: 12724
diff changeset
  1241
outdating all loaded theories on startup); user may create writable
wenzelm
parents: 12724
diff changeset
  1242
logic images like this: ``isabelle -q HOL Test'';
12597
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
  1243
11551
8b5064d1c5c9 * system: support Poly/ML 4.1.1 (large heaps);
wenzelm
parents: 11549
diff changeset
  1244
* system: smart selection of Isabelle process versus Isabelle
11572
wenzelm
parents: 11551
diff changeset
  1245
interface, accommodates case-insensitive file systems (e.g. HFS+); may
wenzelm
parents: 11551
diff changeset
  1246
run both "isabelle" and "Isabelle" even if file names are badly
wenzelm
parents: 11551
diff changeset
  1247
damaged (executable inspects the case of the first letter of its own
wenzelm
parents: 11551
diff changeset
  1248
name); added separate "isabelle-process" and "isabelle-interface";
11551
8b5064d1c5c9 * system: support Poly/ML 4.1.1 (large heaps);
wenzelm
parents: 11549
diff changeset
  1249
12472
wenzelm
parents: 12467
diff changeset
  1250
* system: refrain from any attempt at filtering input streams; no
wenzelm
parents: 12467
diff changeset
  1251
longer support ``8bit'' encoding of old isabelle font, instead proper
wenzelm
parents: 12467
diff changeset
  1252
iso-latin characters may now be used; the related isatools
wenzelm
parents: 12467
diff changeset
  1253
"symbolinput" and "nonascii" have disappeared as well;
wenzelm
parents: 12467
diff changeset
  1254
wenzelm
parents: 12467
diff changeset
  1255
* system: removed old "xterm" interface (the print modes "xterm" and
wenzelm
parents: 12467
diff changeset
  1256
"xterm_color" are still available for direct use in a suitable
wenzelm
parents: 12467
diff changeset
  1257
terminal);
wenzelm
parents: 12467
diff changeset
  1258
11314
f6eebbbed449 ZF: division
paulson
parents: 11307
diff changeset
  1259
11169
98c2f741e32b made split_all_tac safe introducing safe_full_simp_tac, EXISTING PROOFS MAY FAIL
oheimb
parents: 11130
diff changeset
  1260
11062
wenzelm
parents: 11050
diff changeset
  1261
New in Isabelle99-2 (February 2001)
wenzelm
parents: 11050
diff changeset
  1262
-----------------------------------
wenzelm
parents: 11050
diff changeset
  1263
10224
7263c856787e *** empty log message ***
nipkow
parents: 10164
diff changeset
  1264
*** Overview of INCOMPATIBILITIES ***
7263c856787e *** empty log message ***
nipkow
parents: 10164
diff changeset
  1265
11241
61b21aacf04a Isar hint
paulson
parents: 11181
diff changeset
  1266
* HOL: please note that theories in the Library and elsewhere often use the
61b21aacf04a Isar hint
paulson
parents: 11181
diff changeset
  1267
new-style (Isar) format; to refer to their theorems in an ML script you must
12622
wenzelm
parents: 12608
diff changeset
  1268
bind them to ML identifers by e.g.      val thm_name = thm "thm_name";
11241
61b21aacf04a Isar hint
paulson
parents: 11181
diff changeset
  1269
11043
2e3bbac8763b HOL: inductive package no longer splits induction rule aggressively,
wenzelm
parents: 11016
diff changeset
  1270
* HOL: inductive package no longer splits induction rule aggressively,
2e3bbac8763b HOL: inductive package no longer splits induction rule aggressively,
wenzelm
parents: 11016
diff changeset
  1271
but only as far as specified by the introductions given; the old
11130
d14fd58615b9 added missiong word
oheimb
parents: 11124
diff changeset
  1272
format may be recovered via ML function complete_split_rule or attribute
11043
2e3bbac8763b HOL: inductive package no longer splits induction rule aggressively,
wenzelm
parents: 11016
diff changeset
  1273
'split_rule (complete)';
2e3bbac8763b HOL: inductive package no longer splits induction rule aggressively,
wenzelm
parents: 11016
diff changeset
  1274
10998
wenzelm
parents: 10976
diff changeset
  1275
* HOL: induct renamed to lfp_induct, lfp_Tarski to lfp_unfold,
wenzelm
parents: 10976
diff changeset
  1276
gfp_Tarski to gfp_unfold;
10224
7263c856787e *** empty log message ***
nipkow
parents: 10164
diff changeset
  1277
10288
00abecbfa46a contrapos
paulson
parents: 10245
diff changeset
  1278
* HOL: contrapos, contrapos2 renamed to contrapos_nn, contrapos_pp;
00abecbfa46a contrapos
paulson
parents: 10245
diff changeset
  1279
10858
wenzelm
parents: 10856
diff changeset
  1280
* HOL: infix "dvd" now has priority 50 rather than 70 (because it is a
wenzelm
parents: 10856
diff changeset
  1281
relation); infix "^^" has been renamed "``"; infix "``" has been
wenzelm
parents: 10856
diff changeset
  1282
renamed "`"; "univalent" has been renamed "single_valued";
10793
4d6cf7702e3c *** empty log message ***
nipkow
parents: 10770
diff changeset
  1283
10998
wenzelm
parents: 10976
diff changeset
  1284
* HOL/Real: "rinv" and "hrinv" replaced by overloaded "inverse"
wenzelm
parents: 10976
diff changeset
  1285
operation;
wenzelm
parents: 10976
diff changeset
  1286
10868
5af3906edec8 *** empty log message ***
nipkow
parents: 10862
diff changeset
  1287
* HOLCF: infix "`" has been renamed "$"; the symbol syntax is \<cdot>;
10856
e8a5340418b6 *** empty log message ***
nipkow
parents: 10799
diff changeset
  1288
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1289
* Isar: 'obtain' no longer declares "that" fact as simp/intro;
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1290
10401
58bb50f69497 * Isar/HOL: method 'induct' now handles non-atomic goals; as a
wenzelm
parents: 10391
diff changeset
  1291
* Isar/HOL: method 'induct' now handles non-atomic goals; as a
58bb50f69497 * Isar/HOL: method 'induct' now handles non-atomic goals; as a
wenzelm
parents: 10391
diff changeset
  1292
consequence, it is no longer monotonic wrt. the local goal context
58bb50f69497 * Isar/HOL: method 'induct' now handles non-atomic goals; as a
wenzelm
parents: 10391
diff changeset
  1293
(which is now passed through the inductive cases);
58bb50f69497 * Isar/HOL: method 'induct' now handles non-atomic goals; as a
wenzelm
parents: 10391
diff changeset
  1294
10976
0e7cf6f9fa29 * Document preparation: renamed standard symbols \<ll> to \<lless> and
wenzelm
parents: 10966
diff changeset
  1295
* Document preparation: renamed standard symbols \<ll> to \<lless> and
0e7cf6f9fa29 * Document preparation: renamed standard symbols \<ll> to \<lless> and
wenzelm
parents: 10966
diff changeset
  1296
\<gg> to \<ggreater>;
0e7cf6f9fa29 * Document preparation: renamed standard symbols \<ll> to \<lless> and
wenzelm
parents: 10966
diff changeset
  1297
10224
7263c856787e *** empty log message ***
nipkow
parents: 10164
diff changeset
  1298
10245
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1299
*** Document preparation ***
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1300
10858
wenzelm
parents: 10856
diff changeset
  1301
* \isabellestyle{NAME} selects version of Isabelle output (currently
wenzelm
parents: 10856
diff changeset
  1302
available: are "it" for near math-mode best-style output, "sl" for
wenzelm
parents: 10856
diff changeset
  1303
slanted text style, and "tt" for plain type-writer; if no
wenzelm
parents: 10856
diff changeset
  1304
\isabellestyle command is given, output is according to slanted
wenzelm
parents: 10856
diff changeset
  1305
type-writer);
wenzelm
parents: 10856
diff changeset
  1306
10322
df38c61bf541 * support sub/super scripts (for single symbols only), input syntax is
wenzelm
parents: 10306
diff changeset
  1307
* support sub/super scripts (for single symbols only), input syntax is
df38c61bf541 * support sub/super scripts (for single symbols only), input syntax is
wenzelm
parents: 10306
diff changeset
  1308
like this: "A\<^sup>*" or "A\<^sup>\<star>";
df38c61bf541 * support sub/super scripts (for single symbols only), input syntax is
wenzelm
parents: 10306
diff changeset
  1309
10858
wenzelm
parents: 10856
diff changeset
  1310
* some more standard symbols; see Appendix A of the system manual for
11062
wenzelm
parents: 11050
diff changeset
  1311
the complete list of symbols defined in isabellesym.sty;
10858
wenzelm
parents: 10856
diff changeset
  1312
10998
wenzelm
parents: 10976
diff changeset
  1313
* improved isabelle style files; more abstract symbol implementation
wenzelm
parents: 10976
diff changeset
  1314
(should now use \isamath{...} and \isatext{...} in custom symbol
wenzelm
parents: 10976
diff changeset
  1315
definitions);
wenzelm
parents: 10976
diff changeset
  1316
10634
wenzelm
parents: 10609
diff changeset
  1317
* antiquotation @{goals} and @{subgoals} for output of *dynamic* goals
wenzelm
parents: 10609
diff changeset
  1318
state; Note that presentation of goal states does not conform to
wenzelm
parents: 10609
diff changeset
  1319
actual human-readable proof documents.  Please do not include goal
wenzelm
parents: 10609
diff changeset
  1320
states into document output unless you really know what you are doing!
10322
df38c61bf541 * support sub/super scripts (for single symbols only), input syntax is
wenzelm
parents: 10306
diff changeset
  1321
11062
wenzelm
parents: 11050
diff changeset
  1322
* proper indentation of antiquoted output with proportional LaTeX
wenzelm
parents: 11050
diff changeset
  1323
fonts;
10862
857688d775b0 isatool unsymbolize;
wenzelm
parents: 10858
diff changeset
  1324
11050
ac5709ac50b9 * no_document ML operator temporarily disables LaTeX document
wenzelm
parents: 11043
diff changeset
  1325
* no_document ML operator temporarily disables LaTeX document
ac5709ac50b9 * no_document ML operator temporarily disables LaTeX document
wenzelm
parents: 11043
diff changeset
  1326
generation;
ac5709ac50b9 * no_document ML operator temporarily disables LaTeX document
wenzelm
parents: 11043
diff changeset
  1327
11062
wenzelm
parents: 11050
diff changeset
  1328
* isatool unsymbolize tunes sources for plain ASCII communication;
wenzelm
parents: 11050
diff changeset
  1329
10322
df38c61bf541 * support sub/super scripts (for single symbols only), input syntax is
wenzelm
parents: 10306
diff changeset
  1330
10306
b0ab988a27a9 * HOL: default proof step now includes 'intro_classes';
wenzelm
parents: 10288
diff changeset
  1331
*** Isar ***
b0ab988a27a9 * HOL: default proof step now includes 'intro_classes';
wenzelm
parents: 10288
diff changeset
  1332
10547
wenzelm
parents: 10514
diff changeset
  1333
* Pure: Isar now suffers initial goal statements to contain unbound
wenzelm
parents: 10514
diff changeset
  1334
schematic variables (this does not conform to actual readable proof
wenzelm
parents: 10514
diff changeset
  1335
documents, due to unpredictable outcome and non-compositional proof
wenzelm
parents: 10514
diff changeset
  1336
checking); users who know what they are doing may use schematic goals
wenzelm
parents: 10514
diff changeset
  1337
for Prolog-style synthesis of proven results;
wenzelm
parents: 10514
diff changeset
  1338
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1339
* Pure: assumption method (an implicit finishing) now handles actual
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1340
rules as well;
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1341
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1342
* Pure: improved 'obtain' --- moved to Pure, insert "that" into
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1343
initial goal, declare "that" only as Pure intro (only for single
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1344
steps); the "that" rule assumption may now be involved in implicit
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1345
finishing, thus ".." becomes a feasible for trivial obtains;
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1346
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1347
* Pure: default proof step now includes 'intro_classes'; thus trivial
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1348
instance proofs may be performed by "..";
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1349
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1350
* Pure: ?thesis / ?this / "..." now work for pure meta-level
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1351
statements as well;
10306
b0ab988a27a9 * HOL: default proof step now includes 'intro_classes';
wenzelm
parents: 10288
diff changeset
  1352
11097
c1be9f2dff4c more robust selection of calculational rules;
wenzelm
parents: 11094
diff changeset
  1353
* Pure: more robust selection of calculational rules;
c1be9f2dff4c more robust selection of calculational rules;
wenzelm
parents: 11094
diff changeset
  1354
10858
wenzelm
parents: 10856
diff changeset
  1355
* Pure: the builtin notion of 'finished' goal now includes the ==-refl
wenzelm
parents: 10856
diff changeset
  1356
rule (as well as the assumption rule);
wenzelm
parents: 10856
diff changeset
  1357
wenzelm
parents: 10856
diff changeset
  1358
* Pure: 'thm_deps' command visualizes dependencies of theorems and
wenzelm
parents: 10856
diff changeset
  1359
lemmas, using the graph browser tool;
wenzelm
parents: 10856
diff changeset
  1360
10944
710ddb9e8b5e *** empty log message ***
wenzelm
parents: 10915
diff changeset
  1361
* Pure: predict failure of "show" in interactive mode;
710ddb9e8b5e *** empty log message ***
wenzelm
parents: 10915
diff changeset
  1362
11016
8f8ba41a5e7a * Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents: 10998
diff changeset
  1363
* Pure: 'thms_containing' now takes actual terms as arguments;
8f8ba41a5e7a * Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents: 10998
diff changeset
  1364
10401
58bb50f69497 * Isar/HOL: method 'induct' now handles non-atomic goals; as a
wenzelm
parents: 10391
diff changeset
  1365
* HOL: improved method 'induct' --- now handles non-atomic goals
58bb50f69497 * Isar/HOL: method 'induct' now handles non-atomic goals; as a
wenzelm
parents: 10391
diff changeset
  1366
(potential INCOMPATIBILITY); tuned error handling;
58bb50f69497 * Isar/HOL: method 'induct' now handles non-atomic goals; as a
wenzelm
parents: 10391
diff changeset
  1367
10557
wenzelm
parents: 10547
diff changeset
  1368
* HOL: cases and induct rules now provide explicit hints about the
10547
wenzelm
parents: 10514
diff changeset
  1369
number of facts to be consumed (0 for "type" and 1 for "set" rules);
wenzelm
parents: 10514
diff changeset
  1370
any remaining facts are inserted into the goal verbatim;
wenzelm
parents: 10514
diff changeset
  1371
10858
wenzelm
parents: 10856
diff changeset
  1372
* HOL: local contexts (aka cases) may now contain term bindings as
wenzelm
parents: 10856
diff changeset
  1373
well; the 'cases' and 'induct' methods new provide a ?case binding for
wenzelm
parents: 10856
diff changeset
  1374
the result to be shown in each case;
wenzelm
parents: 10856
diff changeset
  1375
10770
4858ad0b8f38 * Isar/HOL: added 'recdef_tc' command;
wenzelm
parents: 10756
diff changeset
  1376
* HOL: added 'recdef_tc' command;
4858ad0b8f38 * Isar/HOL: added 'recdef_tc' command;
wenzelm
parents: 10756
diff changeset
  1377
11016
8f8ba41a5e7a * Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents: 10998
diff changeset
  1378
* isatool convert assists in eliminating legacy ML scripts;
8f8ba41a5e7a * Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents: 10998
diff changeset
  1379
10306
b0ab988a27a9 * HOL: default proof step now includes 'intro_classes';
wenzelm
parents: 10288
diff changeset
  1380
10245
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1381
*** HOL ***
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1382
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1383
* HOL/Library: a collection of generic theories to be used together
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1384
with main HOL; the theory loader path already includes this directory
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1385
by default; the following existing theories have been moved here:
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1386
HOL/Induct/Multiset, HOL/Induct/Acc (as Accessible_Part), HOL/While
10337
fca9cd9fd115 added HOL/Library/List_Prefix;
wenzelm
parents: 10322
diff changeset
  1387
(as While_Combinator), HOL/Lex/Prefix (as List_Prefix);
10245
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1388
10966
8f2c27041a8e added HOL-Unix example;
wenzelm
parents: 10944
diff changeset
  1389
* HOL/Unix: "Some aspects of Unix file-system security", a typical
8f2c27041a8e added HOL-Unix example;
wenzelm
parents: 10944
diff changeset
  1390
modelling and verification task performed in Isabelle/HOL +
8f2c27041a8e added HOL-Unix example;
wenzelm
parents: 10944
diff changeset
  1391
Isabelle/Isar + Isabelle document preparation (by Markus Wenzel).
8f2c27041a8e added HOL-Unix example;
wenzelm
parents: 10944
diff changeset
  1392
11094
wenzelm
parents: 11091
diff changeset
  1393
* HOL/Algebra: special summation operator SUM no longer exists, it has
wenzelm
parents: 11091
diff changeset
  1394
been replaced by setsum; infix 'assoc' now has priority 50 (like
wenzelm
parents: 11091
diff changeset
  1395
'dvd'); axiom 'one_not_zero' has been moved from axclass 'ring' to
wenzelm
parents: 11091
diff changeset
  1396
'domain', this makes the theory consistent with mathematical
wenzelm
parents: 11091
diff changeset
  1397
literature;
wenzelm
parents: 11091
diff changeset
  1398
10514
3db037155f0e * HOL: syntax or "abs";
wenzelm
parents: 10474
diff changeset
  1399
* HOL basics: added overloaded operations "inverse" and "divide"
10726
wenzelm
parents: 10664
diff changeset
  1400
(infix "/"), syntax for generic "abs" operation, generic summation
11094
wenzelm
parents: 11091
diff changeset
  1401
operator \<Sum>;
10452
abeefb0a79ae * added overloaded operations "inverse" and "divide" (infix "/");
wenzelm
parents: 10428
diff changeset
  1402
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1403
* HOL/typedef: simplified package, provide more useful rules (see also
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1404
HOL/subset.thy);
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1405
10915
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1406
* HOL/datatype: induction rule for arbitrarily branching datatypes is
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1407
now expressed as a proper nested rule (old-style tactic scripts may
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1408
require atomize_strip_tac to cope with non-atomic premises);
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1409
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1410
* HOL: renamed theory "Prod" to "Product_Type", renamed "split" rule
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1411
to "split_conv" (old name still available for compatibility);
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1412
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1413
* HOL: improved concrete syntax for strings (e.g. allows translation
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff