NEWS
author avigad
Tue, 19 Jul 2005 17:24:09 +0200
changeset 16888 7cb4bcfa058e
parent 16869 bc98da5727be
child 16891 20bd6e8c9a4f
permissions -rw-r--r--
added list of theorem changes to NEWS added real_of_int_abs to RealDef.thy
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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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  uses <file1> ... <fileM>
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  begin
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where the 'uses' part is optional.  The previous syntax
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  theory <name> = <theory1> + ... + <theoryN>:
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will disappear in the next release.  Use isatool fixheaders to convert
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existing theory files.  Note that there is no change in ancient
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non-Isar theories.
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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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* Improved version of thms_containing searches for a list of criteria
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instead of a list of constants. Known criteria are: intro, elim, dest,
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name:string, simp:term, 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, and simp:term selects all
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simplification rules whose lhs match term.  Any other term is
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interpreted as pattern and selects all theorems matching the
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pattern. Available in ProofGeneral under 'ProofGeneral -> Find
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Theorems' or C-c C-f.  Example:
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  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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*** Document preparation ***
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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.  isatool display
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and isatool print are used as front ends (these are subject to the
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DVI/PDF_VIEWER and PRINT_COMMAND settings, respectively).
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* There is now a flag to control hiding of proofs and some other
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commands (such as 'ML' or 'parse/print_translation') in document
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output.  Hiding is enabled by default, and can be disabled by the
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option '-H false' of isatool usedir or by resetting the reference
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variable IsarOutput.hide_commands in ML.  Additional commands to be
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hidden may be declared using IsarOutput.add_hidden_commands.
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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 that the
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  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., 'concl' printing only the
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conclusion of a meta-logical statement theorem, and 'prem1' .. 'prem9'
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to print the specified premise.  TermStyle.add_style provides an ML
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interface for introducing further styles.  See also the "LaTeX Sugar"
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document practical applications.
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*** Pure ***
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* Considerably improved version of 'constdefs' command.  Now performs
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automatic type-inference of declared constants; additional support for
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local structure declarations (cf. locales and HOL records), see also
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isar-ref manual.  Potential INCOMPATIBILITY: need to observe strictly
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sequential dependencies of definitions within a single 'constdefs'
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section; moreover, the declared name needs to be an identifier.  If
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all fails, consider to fall back on 'consts' and 'defs' separately.
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* Improved indexed syntax and implicit structures.  First of all,
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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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* New command 'no_syntax' removes grammar declarations (and
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translations) resulting from the given syntax specification, which is
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interpreted in the same manner as for the 'syntax' command.
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* 'Advanced' translation functions (parse_translation etc.) may depend
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on the signature of the theory context being presently used for
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parsing/printing, see also isar-ref manual.
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* Improved 'oracle' command provides a type-safe interface to turn an
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ML expression of type theory -> T -> term into a primitive rule of
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type theory -> T -> thm (i.e. the functionality of Thm.invoke_oracle
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is already included here); see also FOL/ex/IffExample.thy;
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INCOMPATIBILITY.
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* Improved internal renaming of symbolic identifiers -- attach primes
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instead of base 26 numbers.
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* New flag show_question_marks controls printing of leading question
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marks in schematic variable names.
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* In schematic variable names, *any* symbol following \<^isub> or
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\<^isup> is now treated as part of the base name.  For example, the
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following works without printing of awkward ".0" indexes:
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  lemma "x\<^isub>1 = x\<^isub>2 ==> x\<^isub>2 = x\<^isub>1"
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    by simp
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* Inner syntax includes (*(*nested*) comments*).
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* Pretty pinter now supports unbreakable blocks, specified in mixfix
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annotations as "(00...)".
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* Clear separation of logical types and nonterminals, where the latter
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may only occur in 'syntax' specifications or type abbreviations.
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Before that distinction was only partially implemented via type class
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"logic" vs. "{}".  Potential INCOMPATIBILITY in rare cases of improper
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use of 'types'/'consts' instead of 'nonterminals'/'syntax'.  Some very
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exotic syntax specifications may require further adaption
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(e.g. Cube/Base.thy).
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* Removed obsolete type class "logic", use the top sort {} instead.
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Note that non-logical types should be declared as 'nonterminals'
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rather than 'types'.  INCOMPATIBILITY for new object-logic
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specifications.
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* Simplifier: can now control the depth to which conditional rewriting
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is traced via the PG menu Isabelle -> Settings -> Trace Simp Depth
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Limit.
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* 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 simprocs
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is gone -- use prems_of_ss on the simpset instead.  Moreover, the
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low-level mk_simproc no longer applies Logic.varify internally, to
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allow for use in a context of fixed variables.
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* thin_tac now works even if the assumption being deleted contains !!
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or ==>.  More generally, erule now works even if the major premise of
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the elimination rule contains !! or ==>.
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* Reorganized bootstrapping of the Pure theories; CPure is now derived
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from Pure, which contains all common declarations already.  Both
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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 space;
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use isatool fixcpure to adapt your theory and ML sources.
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* New syntax 'name(i-j, i-, i, ...)' for referring to specific
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selections of theorems in named facts via index ranges.
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* More efficient treatment of intermediate checkpoints in interactive
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theory development.
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*** Locales ***
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* New commands for the interpretation of locale expressions in
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theories ('interpretation') and proof contexts ('interpret').  These
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take an instantiation of the locale parameters and compute proof
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obligations from the instantiated specification.  After the
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obligations have been discharged, the instantiated theorems of the
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locale are added to the theory or proof context.  Interpretation is
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smart in that already active interpretations do not occur in proof
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obligations, neither are instantiated theorems stored in duplicate.
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Use print_interps to inspect active interpretations of a particular
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locale.  For details, see the Isar Reference manual.
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INCOMPATIBILITY: former 'instantiate' has been withdrawn, use
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'interpret' instead.
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* Proper static binding of attribute syntax -- i.e. types / terms /
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facts mentioned as arguments are always those of the locale definition
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context, independently of the context of later invocations.  Moreover,
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locale operations (renaming and type / term instantiation) are applied
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to attribute arguments as expected.
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INCOMPATIBILITY of the ML interface: always pass Attrib.src instead of
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actual attributes; rare situations may require Attrib.attribute to
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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 both
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   205
on the context and the facts involved -- may have to assign parsed
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values to argument tokens explicitly.
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* New context element "constrains" adds type constraints to parameters --
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there is no logical significance.
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* Context expressions: renaming parameters permits syntax
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redeclaration as well.
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* Locale definition: 'includes' now disallowed.
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* Changed parameter management in theorem generation for long goal
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   217
statements with 'includes'.  INCOMPATIBILITY: produces a different
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theorem statement in rare situations.
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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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727ef1b8b3ee *** empty log message ***
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* Antiquotations now provide the option 'locale=NAME' to specify an
16234
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   224
alternative context used for evaluating and printing the subsequent
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   225
argument, as in @{thm [locale=LC] fold_commute}, for example.
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*** Provers ***
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   229
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* Provers/hypsubst.ML: improved version of the subst method, for
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single-step rewriting: it now works in bound variable contexts. New is
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   232
'subst (asm)', for rewriting an assumption.  INCOMPATIBILITY: may
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diff changeset
   233
rewrite a different subterm than the original subst method, which is
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   234
still available as 'simplesubst'.
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diff changeset
   235
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* Provers/quasi.ML: new transitivity reasoners for transitivity only
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and quasi orders.
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   238
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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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diff changeset
   241
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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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   244
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* Provers/simplifier.ML has been moved to Pure, where Simplifier.setup
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   246
is peformed already.  Object-logics merely need to finish their
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initial simpset configuration as before.  INCOMPATIBILITY.
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15475
fdf9434b04ea - Proofs are now hidden by default when generating documents
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14700
2f885b7e5ba7 reimplementation of HOL records; only one type is created for
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*** HOL ***
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   251
16234
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* Symbolic syntax of Hilbert Choice Operator is now as follows:
14878
b884a7ba7238 HOL: symbolic syntax of Eps;
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b884a7ba7238 HOL: symbolic syntax of Eps;
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   254
  syntax (epsilon)
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   255
    "_Eps" :: "[pttrn, bool] => 'a"    ("(3\<some>_./ _)" [0, 10] 10)
b884a7ba7238 HOL: symbolic syntax of Eps;
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   256
16234
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The symbol \<some> is displayed as the alternative epsilon of LaTeX
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diff changeset
   258
and x-symbol; use option '-m epsilon' to get it actually printed.
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   259
Moreover, the mathematically important symbolic identifier \<epsilon>
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becomes available as variable, constant etc.  INCOMPATIBILITY,
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diff changeset
   261
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* "x > y" abbreviates "y < x" and "x >= y" abbreviates "y <= x".
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   263
Similarly for all quantifiers: "ALL x > y" etc.  The x-symbol for >=
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is \<ge>.
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* "{x:A. P}" abbreviates "{x. x:A & P}", and similarly for "\<in>"
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   267
instead of ":".
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* theory SetInterval: changed the syntax for open intervals:
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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 next
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   279
release.  For conversion use the following Emacs search and replace
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patterns (these are not perfect but work quite well):
15046
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d6a4c3992e9d *** empty log message ***
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  {)\([^\.]*\)\.\.  ->  {\1<\.\.}
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  \.\.\([^(}]*\)(}  ->  \.\.<\1}
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   284
16234
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* theory Finite_Set: changed the syntax for 'setsum', summation over
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   286
finite sets: "setsum (%x. e) A", which used to be "\<Sum>x:A. e", is
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   287
now either "SUM x:A. e" or "\<Sum>x \<in> A. e".
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   288
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   289
Some new syntax forms are available:
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diff changeset
   290
421c3522f160 major reorganization and cleanup;
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diff changeset
   291
  "\<Sum>x | P. e"      for     "setsum (%x. e) {x. P}"
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   292
  "\<Sum>x = a..b. e"   for     "setsum (%x. e) {a..b}"
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   293
  "\<Sum>x = a..<b. e"  for     "setsum (%x. e) {a..<b}"
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   294
  "\<Sum>x < k. e"      for     "setsum (%x. e) {..<k}"
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   295
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   296
The latter form "\<Sum>x < k. e" used to be based on a separate
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   297
function "Summation", which has been discontinued.
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diff changeset
   298
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   299
* theory Finite_Set: in structured induction proofs, the insert case
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   300
is now 'case (insert x F)' instead of the old counterintuitive 'case
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   301
(insert F x)'.
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   302
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   303
* The 'refute' command has been extended to support a much larger
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   304
fragment of HOL, including axiomatic type classes, constdefs and
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diff changeset
   305
typedefs, inductive datatypes and recursion.
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diff changeset
   306
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diff changeset
   307
* Datatype induction via method 'induct' now preserves the name of the
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diff changeset
   308
induction variable. For example, when proving P(xs::'a list) by
421c3522f160 major reorganization and cleanup;
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diff changeset
   309
induction on xs, the induction step is now P(xs) ==> P(a#xs) rather
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diff changeset
   310
than P(list) ==> P(a#list) as previously.  Potential INCOMPATIBILITY
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diff changeset
   311
in unstructured proof scripts.
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diff changeset
   312
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diff changeset
   313
* Reworked implementation of records.  Improved scalability for
421c3522f160 major reorganization and cleanup;
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diff changeset
   314
records with many fields, avoiding performance problems for type
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diff changeset
   315
inference. Records are no longer composed of nested field types, but
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diff changeset
   316
of nested extension types. Therefore the record type only grows linear
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diff changeset
   317
in the number of extensions and not in the number of fields.  The
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diff changeset
   318
top-level (users) view on records is preserved.  Potential
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diff changeset
   319
INCOMPATIBILITY only in strange cases, where the theory depends on the
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diff changeset
   320
old record representation. The type generated for a record is called
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diff changeset
   321
<record_name>_ext_type.
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diff changeset
   322
421c3522f160 major reorganization and cleanup;
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diff changeset
   323
Flag record_quick_and_dirty_sensitive can be enabled to skip the
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wenzelm
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diff changeset
   324
proofs triggered by a record definition or a simproc (if
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diff changeset
   325
quick_and_dirty is enabled).  Definitions of large records can take
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diff changeset
   326
quite long.
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diff changeset
   327
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diff changeset
   328
New simproc record_upd_simproc for simplification of multiple record
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diff changeset
   329
updates enabled by default.  Moreover, trivial updates are also
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diff changeset
   330
removed: r(|x := x r|) = r.  INCOMPATIBILITY: old proofs break
421c3522f160 major reorganization and cleanup;
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diff changeset
   331
occasionally, since simplification is more powerful by default.
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diff changeset
   332
421c3522f160 major reorganization and cleanup;
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diff changeset
   333
* Simplifier: automatically reasons about transitivity chains
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wenzelm
parents: 16181
diff changeset
   334
involving "trancl" (r^+) and "rtrancl" (r^*) by setting up tactics
421c3522f160 major reorganization and cleanup;
wenzelm
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diff changeset
   335
provided by Provers/trancl.ML as additional solvers.  INCOMPATIBILITY:
421c3522f160 major reorganization and cleanup;
wenzelm
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diff changeset
   336
old proofs break occasionally as simplification may now solve more
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wenzelm
parents: 16181
diff changeset
   337
goals than previously.
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wenzelm
parents: 16181
diff changeset
   338
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diff changeset
   339
* Simplifier: converts x <= y into x = y if assumption y <= x is
421c3522f160 major reorganization and cleanup;
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diff changeset
   340
present.  Works for all partial orders (class "order"), in particular
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wenzelm
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diff changeset
   341
numbers and sets.  For linear orders (e.g. numbers) it treats ~ x < y
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wenzelm
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diff changeset
   342
just like y <= x.
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diff changeset
   343
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diff changeset
   344
* Simplifier: new simproc for "let x = a in f x".  If a is a free or
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diff changeset
   345
bound variable or a constant then the let is unfolded.  Otherwise
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diff changeset
   346
first a is simplified to b, and then f b is simplified to g. If
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diff changeset
   347
possible we abstract b from g arriving at "let x = b in h x",
421c3522f160 major reorganization and cleanup;
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diff changeset
   348
otherwise we unfold the let and arrive at g.  The simproc can be
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diff changeset
   349
enabled/disabled by the reference use_let_simproc.  Potential
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wenzelm
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diff changeset
   350
INCOMPATIBILITY since simplification is more powerful by default.
15776
e2f45df0696f refute extended
webertj
parents: 15763
diff changeset
   351
16563
a92f96951355 meson method taking an argument list
paulson
parents: 16547
diff changeset
   352
* Classical reasoning: the meson method now accepts theorems as arguments.
a92f96951355 meson method taking an argument list
paulson
parents: 16547
diff changeset
   353
16888
7cb4bcfa058e added list of theorem changes to NEWS
avigad
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diff changeset
   354
* Introduced various additions and improvements in OrderedGroup.thy and 
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   355
Ring_and_Field.thy, to faciliate calculations involving equalities 
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   356
and inequalities.
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   357
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   358
* Added rules for simplifying exponents to Parity.thy
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   359
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   360
Below are some theorems that have been eliminated or modified in this release:
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   361
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   362
  abs_eq             now named abs_of_nonneg
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   363
  abs_of_ge_0        now named abs_of_nonneg 
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   364
  abs_minus_eq       now named abs_of_nonpos  
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   365
  imp_abs_id         now named abs_of_nonneg
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   366
  imp_abs_neg_id     now named abs_of_nonpos
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   367
  mult_pos           now named mult_pos_pos
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   368
  mult_pos_le        now named mult_nonneg_nonneg
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   369
  mult_pos_neg_le    now named mult_nonneg_nonpos
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   370
  mult_pos_neg2_le   now named mult_nonneg_nonpos2
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   371
  mult_neg           now named mult_neg_neg
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   372
  mult_neg_le        now named mult_nonpos_nonpos
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   373
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   374
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   375
*** HOL-Complex ***
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   376
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   377
* Introduced better support for embedding natural numbers and integers
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   378
in the reals, in RealDef.thy.
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   379
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   380
* Expanded support for floor and ceiling functions, in RComplete.thy.
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   381
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   382
Below are some theorems that have been eliminated or modified in this release:
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   383
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   384
  real_of_int_add    reversed direction of equality (use "THEN sym")
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   385
  real_of_int_minus  reversed direction of equality (use "THEN sym")
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   386
  real_of_int_diff   reversed direction of equality (use "THEN sym")
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   387
  real_of_int_mult   reversed direction of equality (use "THEN sym")
7cb4bcfa058e added list of theorem changes to NEWS
avigad
parents: 16869
diff changeset
   388
14655
8a95abf87dd3 Pure: considerably improved version of 'constdefs' command;
wenzelm
parents: 14624
diff changeset
   389
14682
a5072752114c HOLCF: discontinued special version of 'constdefs';
wenzelm
parents: 14655
diff changeset
   390
*** HOLCF ***
a5072752114c HOLCF: discontinued special version of 'constdefs';
wenzelm
parents: 14655
diff changeset
   391
a5072752114c HOLCF: discontinued special version of 'constdefs';
wenzelm
parents: 14655
diff changeset
   392
* HOLCF: discontinued special version of 'constdefs' (which used to
16234
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   393
support continuous functions) in favor of the general Pure one with
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   394
full type-inference.
14682
a5072752114c HOLCF: discontinued special version of 'constdefs';
wenzelm
parents: 14655
diff changeset
   395
a5072752114c HOLCF: discontinued special version of 'constdefs';
wenzelm
parents: 14655
diff changeset
   396
14885
0a840138dcd7 Groups, Rings and supporting lemmas in ZF
paulson
parents: 14878
diff changeset
   397
*** ZF ***
0a840138dcd7 Groups, Rings and supporting lemmas in ZF
paulson
parents: 14878
diff changeset
   398
16234
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   399
* ZF/ex: theories Group and Ring provide examples in abstract algebra,
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   400
including the First Isomorphism Theorem (on quotienting by the kernel
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   401
of a homomorphism).
15089
430264838064 ZF/Simplifier: second copy of context type solver;
wenzelm
parents: 15076
diff changeset
   402
430264838064 ZF/Simplifier: second copy of context type solver;
wenzelm
parents: 15076
diff changeset
   403
* ZF/Simplifier: install second copy of type solver that actually
16234
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   404
makes use of TC rules declared to Isar proof contexts (or locales);
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   405
the old version is still required for ML proof scripts.
15703
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   406
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   407
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   408
*** ML ***
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   409
15973
wenzelm
parents: 15931
diff changeset
   410
* Pure/library.ML no longer defines its own option datatype, but uses
16234
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   411
that of the SML basis, which has constructors NONE and SOME instead of
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   412
None and Some, as well as exception Option.Option instead of OPTION.
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   413
The functions the, if_none, is_some, is_none have been adapted
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   414
accordingly, while Option.map replaces apsome.
15973
wenzelm
parents: 15931
diff changeset
   415
16860
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   416
* Pure/library.ML: the exception LIST has been given up in favour of
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   417
the standard exceptions Empty and Subscript, as well as
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   418
Library.UnequalLengths.  Function like Library.hd and Library.tl are
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   419
superceded by the standard hd and tl functions etc.
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   420
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   421
A number of basic list functions are no longer exported to the ML
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   422
toplevel, as they are variants of predefined functions.  The following
16234
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   423
suggests how one can translate existing code:
15973
wenzelm
parents: 15931
diff changeset
   424
wenzelm
parents: 15931
diff changeset
   425
    rev_append xs ys = List.revAppend (xs, ys)
wenzelm
parents: 15931
diff changeset
   426
    nth_elem (i, xs) = List.nth (xs, i)
wenzelm
parents: 15931
diff changeset
   427
    last_elem xs = List.last xs
wenzelm
parents: 15931
diff changeset
   428
    flat xss = List.concat xss
16234
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   429
    seq fs = List.app fs
15973
wenzelm
parents: 15931
diff changeset
   430
    partition P xs = List.partition P xs
wenzelm
parents: 15931
diff changeset
   431
    mapfilter f xs = List.mapPartial f xs
wenzelm
parents: 15931
diff changeset
   432
16860
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   433
* Pure/library.ML: several combinators for linear functional
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   434
transformations, notably reverse application and composition:
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   435
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   436
  x |> f		f #> g
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   437
  (x, y) |-> f		f #-> g
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   438
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   439
* Pure/library.ML: canonical list combinators fold, fold_rev, and
16869
bc98da5727be reverted from fold_yield to fold_map
haftmann
parents: 16868
diff changeset
   440
fold_map support linear functional transformations and nesting.  For
16860
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   441
example:
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   442
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   443
  fold f [x1, ..., xN] y =
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   444
    y |> f x1 |> ... |> f xN
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   445
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   446
  (fold o fold) f [xs1, ..., xsN] y =
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   447
    y |> fold f xs1 |> ... |> fold f xsN
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   448
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   449
  fold f [x1, ..., xN] =
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   450
    f x1 #> ... #> f xN
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   451
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   452
  (fold o fold) f [xs1, ..., xsN] =
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   453
    fold f xs1 #> ... #> fold f xsN
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   454
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   455
* Pure/term.ML: combinators fold_atyps, fold_aterms, fold_term_types,
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   456
fold_types traverse types/terms from left to right, observing
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   457
canonical argument order.  Supercedes previous foldl_XXX versions,
16868
eaafda56b14c *** empty log message ***
wenzelm
parents: 16860
diff changeset
   458
add_frees, add_vars etc. have been adapted as well: INCOMPATIBILITY.
16860
43abdba4da5c * Pure/library.ML: several combinators for linear functional transformations;
wenzelm
parents: 16856
diff changeset
   459
15703
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   460
* Pure: output via the Isabelle channels of writeln/warning/error
16234
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   461
etc. is now passed through Output.output, with a hook for arbitrary
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   462
transformations depending on the print_mode (cf. Output.add_mode --
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   463
the first active mode that provides a output function wins).  Already
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   464
formatted output may be embedded into further text via Output.raw; the
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   465
result of Pretty.string_of/str_of and derived functions
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   466
(string_of_term/cterm/thm etc.) is already marked raw to accommodate
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   467
easy composition of diagnostic messages etc.  Programmers rarely need
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   468
to care about Output.output or Output.raw at all, with some notable
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   469
exceptions: Output.output is required when bypassing the standard
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   470
channels (writeln etc.), or in token translations to produce properly
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   471
formatted results; Output.raw is required when capturing already
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   472
output material that will eventually be presented to the user a second
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   473
time.  For the default print mode, both Output.output and Output.raw
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   474
have no effect.
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   475
16718
70c94b82c556 * Pure: Output.time_accumulator;
wenzelm
parents: 16717
diff changeset
   476
* Pure: Output.time_accumulator NAME creates an operator ('a -> 'b) ->
70c94b82c556 * Pure: Output.time_accumulator;
wenzelm
parents: 16717
diff changeset
   477
'a -> 'b to measure runtime and count invocations; the cumulative
70c94b82c556 * Pure: Output.time_accumulator;
wenzelm
parents: 16717
diff changeset
   478
results are displayed at the end of a batch session.
70c94b82c556 * Pure: Output.time_accumulator;
wenzelm
parents: 16717
diff changeset
   479
70c94b82c556 * Pure: Output.time_accumulator;
wenzelm
parents: 16717
diff changeset
   480
* Isar toplevel: improved diagnostics, mostly for Poly/ML only.
70c94b82c556 * Pure: Output.time_accumulator;
wenzelm
parents: 16717
diff changeset
   481
Reference Toplevel.debug (default false) controls detailed printing
70c94b82c556 * Pure: Output.time_accumulator;
wenzelm
parents: 16717
diff changeset
   482
and tracing of low-level exceptions; Toplevel.profiling (default 0)
70c94b82c556 * Pure: Output.time_accumulator;
wenzelm
parents: 16717
diff changeset
   483
controls execution profiling -- set to 1 for time and 2 for space
70c94b82c556 * Pure: Output.time_accumulator;
wenzelm
parents: 16717
diff changeset
   484
(both increase the runtime).
15703
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   485
16799
978dcf30c3dd * Isar session: The initial use of ROOT.ML is now always timed;
wenzelm
parents: 16718
diff changeset
   486
* Isar session: The initial use of ROOT.ML is now always timed,
978dcf30c3dd * Isar session: The initial use of ROOT.ML is now always timed;
wenzelm
parents: 16718
diff changeset
   487
i.e. the log will show the actual process times, in contrast to the
978dcf30c3dd * Isar session: The initial use of ROOT.ML is now always timed;
wenzelm
parents: 16718
diff changeset
   488
elapsed wall-clock time that the outer shell wrapper produces.
978dcf30c3dd * Isar session: The initial use of ROOT.ML is now always timed;
wenzelm
parents: 16718
diff changeset
   489
 
16689
05b986733a59 * Pure: structure OrdList (cf. Pure/General/ord_list.ML);
wenzelm
parents: 16662
diff changeset
   490
* Pure: structure OrdList (cf. Pure/General/ord_list.ML) provides a
16690
wenzelm
parents: 16689
diff changeset
   491
reasonably efficient light-weight implementation of sets as lists.
16689
05b986733a59 * Pure: structure OrdList (cf. Pure/General/ord_list.ML);
wenzelm
parents: 16662
diff changeset
   492
05b986733a59 * Pure: structure OrdList (cf. Pure/General/ord_list.ML);
wenzelm
parents: 16662
diff changeset
   493
* Pure: more efficient orders for basic syntactic entities: added
05b986733a59 * Pure: structure OrdList (cf. Pure/General/ord_list.ML);
wenzelm
parents: 16662
diff changeset
   494
fast_string_ord, fast_indexname_ord, fast_term_ord; changed sort_ord
05b986733a59 * Pure: structure OrdList (cf. Pure/General/ord_list.ML);
wenzelm
parents: 16662
diff changeset
   495
and typ_ord to use fast_string_ord and fast_indexname_ord (term_ord is
05b986733a59 * Pure: structure OrdList (cf. Pure/General/ord_list.ML);
wenzelm
parents: 16662
diff changeset
   496
NOT affected); structures Symtab, Vartab, Typtab, Termtab use the fast
05b986733a59 * Pure: structure OrdList (cf. Pure/General/ord_list.ML);
wenzelm
parents: 16662
diff changeset
   497
orders now -- potential INCOMPATIBILITY for code that depends on a
05b986733a59 * Pure: structure OrdList (cf. Pure/General/ord_list.ML);
wenzelm
parents: 16662
diff changeset
   498
particular order for Symtab.keys, Symtab.dest, etc. (consider using
05b986733a59 * Pure: structure OrdList (cf. Pure/General/ord_list.ML);
wenzelm
parents: 16662
diff changeset
   499
Library.sort_strings on result).
05b986733a59 * Pure: structure OrdList (cf. Pure/General/ord_list.ML);
wenzelm
parents: 16662
diff changeset
   500
16151
cf7f146086bc ML Pure: name spaces have been refined;
wenzelm
parents: 16112
diff changeset
   501
* Pure: name spaces have been refined, with significant changes of the
16234
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   502
internal interfaces -- INCOMPATIBILITY.  Renamed cond_extern(_table)
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   503
to extern(_table).  The plain name entry path is superceded by a
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   504
general 'naming' context, which also includes the 'policy' to produce
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   505
a fully qualified name and external accesses of a fully qualified
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   506
name; NameSpace.extend is superceded by context dependent
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   507
Sign.declare_name.  Several theory and proof context operations modify
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   508
the naming context.  Especially note Theory.restore_naming and
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   509
ProofContext.restore_naming to get back to a sane state; note that
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   510
Theory.add_path is no longer sufficient to recover from
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   511
Theory.absolute_path in particular.
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   512
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   513
* Pure: new flags short_names (default false) and unique_names
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   514
(default true) for controlling output of qualified names.  If
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   515
short_names is set, names are printed unqualified.  If unique_names is
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   516
reset, the name prefix is reduced to the minimum required to achieve
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   517
the original result when interning again, even if there is an overlap
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   518
with earlier declarations.
16151
cf7f146086bc ML Pure: name spaces have been refined;
wenzelm
parents: 16112
diff changeset
   519
16456
451f1c46d4ca * Pure/TheoryDataFun: change of the argument structure;
wenzelm
parents: 16373
diff changeset
   520
* Pure/TheoryDataFun: change of the argument structure; 'prep_ext' is
451f1c46d4ca * Pure/TheoryDataFun: change of the argument structure;
wenzelm
parents: 16373
diff changeset
   521
now 'extend', and 'merge' gets an additional Pretty.pp argument
451f1c46d4ca * Pure/TheoryDataFun: change of the argument structure;
wenzelm
parents: 16373
diff changeset
   522
(useful for printing error messages).  INCOMPATIBILITY.
451f1c46d4ca * Pure/TheoryDataFun: change of the argument structure;
wenzelm
parents: 16373
diff changeset
   523
451f1c46d4ca * Pure/TheoryDataFun: change of the argument structure;
wenzelm
parents: 16373
diff changeset
   524
* Pure: major reorganization of the theory context.  Type Sign.sg and
451f1c46d4ca * Pure/TheoryDataFun: change of the argument structure;
wenzelm
parents: 16373
diff changeset
   525
Theory.theory are now identified, referring to the universal
451f1c46d4ca * Pure/TheoryDataFun: change of the argument structure;
wenzelm
parents: 16373
diff changeset
   526
Context.theory (see Pure/context.ML).  Actual signature and theory
451f1c46d4ca * Pure/TheoryDataFun: change of the argument structure;
wenzelm
parents: 16373
diff changeset
   527
content is managed as theory data.  The old code and interfaces were
451f1c46d4ca * Pure/TheoryDataFun: change of the argument structure;
wenzelm
parents: 16373
diff changeset
   528
spread over many files and structures; the new arrangement introduces
451f1c46d4ca * Pure/TheoryDataFun: change of the argument structure;
wenzelm
parents: 16373
diff changeset
   529
considerable INCOMPATIBILITY to gain more clarity:
451f1c46d4ca * Pure/TheoryDataFun: change of the argument structure;
wenzelm
parents: 16373
diff changeset
   530
451f1c46d4ca * Pure/TheoryDataFun: change of the argument structure;
wenzelm
parents: 16373
diff changeset
   531
  Context -- theory management operations (name, identity, inclusion,
451f1c46d4ca * Pure/TheoryDataFun: change of the argument structure;
wenzelm
parents: 16373
diff changeset
   532
    parents, ancestors, merge, etc.), plus generic theory data;
451f1c46d4ca * Pure/TheoryDataFun: change of the argument structure;
wenzelm
parents: 16373
diff changeset
   533
451f1c46d4ca * Pure/TheoryDataFun: change of the argument structure;
wenzelm
parents: 16373
diff changeset
   534
  Sign -- logical signature and syntax operations (declaring consts,
451f1c46d4ca * Pure/TheoryDataFun: change of the argument structure;
wenzelm
parents: 16373
diff changeset
   535
    types, etc.), plus certify/read for common entities;
451f1c46d4ca * Pure/TheoryDataFun: change of the argument structure;
wenzelm
parents: 16373
diff changeset
   536
451f1c46d4ca * Pure/TheoryDataFun: change of the argument structure;
wenzelm
parents: 16373
diff changeset
   537
  Theory -- logical theory operations (stating axioms, definitions,
451f1c46d4ca * Pure/TheoryDataFun: change of the argument structure;
wenzelm
parents: 16373
diff changeset
   538
    oracles), plus a copy of logical signature operations (consts,
451f1c46d4ca * Pure/TheoryDataFun: change of the argument structure;
wenzelm
parents: 16373
diff changeset
   539
    types, etc.); also a few basic management operations (Theory.copy,
451f1c46d4ca * Pure/TheoryDataFun: change of the argument structure;
wenzelm
parents: 16373
diff changeset
   540
    Theory.merge, etc.)
451f1c46d4ca * Pure/TheoryDataFun: change of the argument structure;
wenzelm
parents: 16373
diff changeset
   541
451f1c46d4ca * Pure/TheoryDataFun: change of the argument structure;
wenzelm
parents: 16373
diff changeset
   542
The most basic sign_of operations (Theory.sign_of, Thm.sign_of_thm
451f1c46d4ca * Pure/TheoryDataFun: change of the argument structure;
wenzelm
parents: 16373
diff changeset
   543
etc.) as well as the sign field in Thm.rep_thm etc. have been retained
451f1c46d4ca * Pure/TheoryDataFun: change of the argument structure;
wenzelm
parents: 16373
diff changeset
   544
for convenience -- they merely return the theory.
451f1c46d4ca * Pure/TheoryDataFun: change of the argument structure;
wenzelm
parents: 16373
diff changeset
   545
16547
09f7a953d2d6 * Pure: the Isar proof context type is already defined early in Pure
wenzelm
parents: 16506
diff changeset
   546
* Pure: the Isar proof context type is already defined early in Pure
09f7a953d2d6 * Pure: the Isar proof context type is already defined early in Pure
wenzelm
parents: 16506
diff changeset
   547
as Context.proof (note that ProofContext.context and Proof.context are
09f7a953d2d6 * Pure: the Isar proof context type is already defined early in Pure
wenzelm
parents: 16506
diff changeset
   548
aliases, where the latter is the preferred name).  This enables other
09f7a953d2d6 * Pure: the Isar proof context type is already defined early in Pure
wenzelm
parents: 16506
diff changeset
   549
Isabelle components to refer to that type even before Isar is present.
09f7a953d2d6 * Pure: the Isar proof context type is already defined early in Pure
wenzelm
parents: 16506
diff changeset
   550
16373
9d020423093b * Pure/sign/theory: discontinued named name spaces;
wenzelm
parents: 16251
diff changeset
   551
* Pure/sign/theory: discontinued named name spaces (i.e. classK,
9d020423093b * Pure/sign/theory: discontinued named name spaces;
wenzelm
parents: 16251
diff changeset
   552
typeK, constK, axiomK, oracleK), but provide explicit operations for
9d020423093b * Pure/sign/theory: discontinued named name spaces;
wenzelm
parents: 16251
diff changeset
   553
any of these kinds.  For example, Sign.intern typeK is now
9d020423093b * Pure/sign/theory: discontinued named name spaces;
wenzelm
parents: 16251
diff changeset
   554
Sign.intern_type, Theory.hide_space Sign.typeK is now
9d020423093b * Pure/sign/theory: discontinued named name spaces;
wenzelm
parents: 16251
diff changeset
   555
Theory.hide_types.  Also note that former
9d020423093b * Pure/sign/theory: discontinued named name spaces;
wenzelm
parents: 16251
diff changeset
   556
Theory.hide_classes/types/consts are now
9d020423093b * Pure/sign/theory: discontinued named name spaces;
wenzelm
parents: 16251
diff changeset
   557
Theory.hide_classes_i/types_i/consts_i, while the non '_i' versions
9d020423093b * Pure/sign/theory: discontinued named name spaces;
wenzelm
parents: 16251
diff changeset
   558
internalize their arguments!  INCOMPATIBILITY.
9d020423093b * Pure/sign/theory: discontinued named name spaces;
wenzelm
parents: 16251
diff changeset
   559
16506
b2687ce38433 * Pure: get_thm interface expects datatype thmref;
wenzelm
parents: 16456
diff changeset
   560
* Pure: get_thm interface (of PureThy and ProofContext) expects
b2687ce38433 * Pure: get_thm interface expects datatype thmref;
wenzelm
parents: 16456
diff changeset
   561
datatype thmref (with constructors Name and NameSelection) instead of
b2687ce38433 * Pure: get_thm interface expects datatype thmref;
wenzelm
parents: 16456
diff changeset
   562
plain string -- INCOMPATIBILITY;
b2687ce38433 * Pure: get_thm interface expects datatype thmref;
wenzelm
parents: 16456
diff changeset
   563
16151
cf7f146086bc ML Pure: name spaces have been refined;
wenzelm
parents: 16112
diff changeset
   564
* Pure: cases produced by proof methods specify options, where NONE
16234
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   565
means to remove case bindings -- INCOMPATIBILITY in
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   566
(RAW_)METHOD_CASES.
16151
cf7f146086bc ML Pure: name spaces have been refined;
wenzelm
parents: 16112
diff changeset
   567
16373
9d020423093b * Pure/sign/theory: discontinued named name spaces;
wenzelm
parents: 16251
diff changeset
   568
* Pure: the following operations retrieve axioms or theorems from a
9d020423093b * Pure/sign/theory: discontinued named name spaces;
wenzelm
parents: 16251
diff changeset
   569
theory node or theory hierarchy, respectively:
9d020423093b * Pure/sign/theory: discontinued named name spaces;
wenzelm
parents: 16251
diff changeset
   570
9d020423093b * Pure/sign/theory: discontinued named name spaces;
wenzelm
parents: 16251
diff changeset
   571
  Theory.axioms_of: theory -> (string * term) list
9d020423093b * Pure/sign/theory: discontinued named name spaces;
wenzelm
parents: 16251
diff changeset
   572
  Theory.all_axioms_of: theory -> (string * term) list
9d020423093b * Pure/sign/theory: discontinued named name spaces;
wenzelm
parents: 16251
diff changeset
   573
  PureThy.thms_of: theory -> (string * thm) list
9d020423093b * Pure/sign/theory: discontinued named name spaces;
wenzelm
parents: 16251
diff changeset
   574
  PureThy.all_thms_of: theory -> (string * thm) list
9d020423093b * Pure/sign/theory: discontinued named name spaces;
wenzelm
parents: 16251
diff changeset
   575
16718
70c94b82c556 * Pure: Output.time_accumulator;
wenzelm
parents: 16717
diff changeset
   576
* Pure: print_tac now outputs the goal through the trace channel.
70c94b82c556 * Pure: Output.time_accumulator;
wenzelm
parents: 16717
diff changeset
   577
15703
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   578
* Provers: Simplifier and Classical Reasoner now support proof context
16234
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   579
dependent plug-ins (simprocs, solvers, wrappers etc.).  These extra
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   580
components are stored in the theory and patched into the
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   581
simpset/claset when used in an Isar proof context.  Context dependent
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   582
components are maintained by the following theory operations:
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   583
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   584
  Simplifier.add_context_simprocs
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   585
  Simplifier.del_context_simprocs
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   586
  Simplifier.set_context_subgoaler
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   587
  Simplifier.reset_context_subgoaler
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   588
  Simplifier.add_context_looper
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   589
  Simplifier.del_context_looper
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   590
  Simplifier.add_context_unsafe_solver
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   591
  Simplifier.add_context_safe_solver
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   592
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   593
  Classical.add_context_safe_wrapper
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   594
  Classical.del_context_safe_wrapper
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   595
  Classical.add_context_unsafe_wrapper
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   596
  Classical.del_context_unsafe_wrapper
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   597
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   598
IMPORTANT NOTE: proof tools (methods etc.) need to use
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   599
local_simpset_of and local_claset_of to instead of the primitive
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   600
Simplifier.get_local_simpset and Classical.get_local_claset,
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   601
respectively, in order to see the context dependent fields!
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   602
16251
121dc80d120a * ML: replaced File.sysify_path/quote_sysify_path by File.platform_path/shell_path;
wenzelm
parents: 16234
diff changeset
   603
* File.sysify_path and File.quote_sysify path have been replaced by
121dc80d120a * ML: replaced File.sysify_path/quote_sysify_path by File.platform_path/shell_path;
wenzelm
parents: 16234
diff changeset
   604
File.platform_path and File.shell_path (with appropriate hooks).  This
121dc80d120a * ML: replaced File.sysify_path/quote_sysify_path by File.platform_path/shell_path;
wenzelm
parents: 16234
diff changeset
   605
provides a clean interface for unusual systems where the internal and
121dc80d120a * ML: replaced File.sysify_path/quote_sysify_path by File.platform_path/shell_path;
wenzelm
parents: 16234
diff changeset
   606
external process view of file names are different.
121dc80d120a * ML: replaced File.sysify_path/quote_sysify_path by File.platform_path/shell_path;
wenzelm
parents: 16234
diff changeset
   607
16234
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   608
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   609
*** System ***
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   610
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   611
* Allow symlinks to all proper Isabelle executables (Isabelle,
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   612
isabelle, isatool etc.).
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   613
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   614
* ISABELLE_DOC_FORMAT setting specifies preferred document format (for
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   615
isatool doc, isatool mkdir, display_drafts etc.).
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   616
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   617
* isatool usedir: option -f allows specification of the ML file to be
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   618
used by Isabelle; default is ROOT.ML.
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   619
16251
121dc80d120a * ML: replaced File.sysify_path/quote_sysify_path by File.platform_path/shell_path;
wenzelm
parents: 16234
diff changeset
   620
* New isatool version outputs the version identifier of the Isabelle
121dc80d120a * ML: replaced File.sysify_path/quote_sysify_path by File.platform_path/shell_path;
wenzelm
parents: 16234
diff changeset
   621
distribution being used.
121dc80d120a * ML: replaced File.sysify_path/quote_sysify_path by File.platform_path/shell_path;
wenzelm
parents: 16234
diff changeset
   622
121dc80d120a * ML: replaced File.sysify_path/quote_sysify_path by File.platform_path/shell_path;
wenzelm
parents: 16234
diff changeset
   623
* HOL: new isatool dimacs2hol converts files in DIMACS CNF format
16234
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   624
(containing Boolean satisfiability problems) into Isabelle/HOL
421c3522f160 major reorganization and cleanup;
wenzelm
parents: 16181
diff changeset
   625
theories.
15703
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   626
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15696
diff changeset
   627
14655
8a95abf87dd3 Pure: considerably improved version of 'constdefs' command;
wenzelm
parents: 14624
diff changeset
   628
14606
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   629
New in Isabelle2004 (April 2004)
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   630
--------------------------------
13280
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents: 13190
diff changeset
   631
14171
0cab06e3bbd0 Extended the notion of letter and digit, such that now one may use greek,
skalberg
parents: 14136
diff changeset
   632
*** General ***
0cab06e3bbd0 Extended the notion of letter and digit, such that now one may use greek,
skalberg
parents: 14136
diff changeset
   633
14398
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   634
* 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
   635
  Replaces linorder.ML.
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   636
14606
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   637
* Pure: Greek letters (except small lambda, \<lambda>), as well as Gothic
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   638
  (\<aa>...\<zz>\<AA>...\<ZZ>), calligraphic (\<A>...\<Z>), and Euler
14173
a3690aeb79d4 Removed the extended digits again.
skalberg
parents: 14172
diff changeset
   639
  (\<a>...\<z>), are now considered normal letters, and can therefore
a3690aeb79d4 Removed the extended digits again.
skalberg
parents: 14172
diff changeset
   640
  be used anywhere where an ASCII letter (a...zA...Z) has until
a3690aeb79d4 Removed the extended digits again.
skalberg
parents: 14172
diff changeset
   641
  now. COMPATIBILITY: This obviously changes the parsing of some
a3690aeb79d4 Removed the extended digits again.
skalberg
parents: 14172
diff changeset
   642
  terms, especially where a symbol has been used as a binder, say
a3690aeb79d4 Removed the extended digits again.
skalberg
parents: 14172
diff changeset
   643
  '\<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
   644
  as an identifier.  Fix it by inserting a space around former
a3690aeb79d4 Removed the extended digits again.
skalberg
parents: 14172
diff changeset
   645
  symbols.  Call 'isatool fixgreek' to try to fix parsing errors in
a3690aeb79d4 Removed the extended digits again.
skalberg
parents: 14172
diff changeset
   646
  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
   647
14237
a486123e24a5 line-breaks; rewording
paulson
parents: 14234
diff changeset
   648
* Pure: Macintosh and Windows line-breaks are now allowed in theory files.
a486123e24a5 line-breaks; rewording
paulson
parents: 14234
diff changeset
   649
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   650
* Pure: single letter sub/superscripts (\<^isub> and \<^isup>) are now
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   651
  allowed in identifiers. Similar to Greek letters \<^isub> is now considered
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   652
  a normal (but invisible) letter. For multiple letter subscripts repeat
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   653
  \<^isub> like this: x\<^isub>1\<^isub>2.
14233
f6b6b2c55141 allow \<^sub> in identifiers
kleing
parents: 14224
diff changeset
   654
14333
14f29eb097a3 \<^bsub> .. \<^esub>
kleing
parents: 14285
diff changeset
   655
* Pure: There are now sub-/superscripts that can span more than one
14f29eb097a3 \<^bsub> .. \<^esub>
kleing
parents: 14285
diff changeset
   656
  character. Text between \<^bsub> and \<^esub> is set in subscript in
14606
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   657
  ProofGeneral and LaTeX, text between \<^bsup> and \<^esup> in
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   658
  superscript. The new control characters are not identifier parts.
14333
14f29eb097a3 \<^bsub> .. \<^esub>
kleing
parents: 14285
diff changeset
   659
14561
c53396af770e * raw control symbols are of the form \<^raw:...> now.
schirmer
parents: 14556
diff changeset
   660
* Pure: Control-symbols of the form \<^raw:...> will literally print the
14606
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   661
  content of "..." to the latex file instead of \isacntrl... . The "..."
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   662
  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
   663
14237
a486123e24a5 line-breaks; rewording
paulson
parents: 14234
diff changeset
   664
* Pure: Using new Isar command "finalconsts" (or the ML functions
a486123e24a5 line-breaks; rewording
paulson
parents: 14234
diff changeset
   665
  Theory.add_finals or Theory.add_finals_i) it is now possible to
a486123e24a5 line-breaks; rewording
paulson
parents: 14234
diff changeset
   666
  declare constants "final", which prevents their being given a definition
a486123e24a5 line-breaks; rewording
paulson
parents: 14234
diff changeset
   667
  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
   668
  rather than definitionally, such as the meta-logic connectives.
442c097c1437 Added info on the new 'finalconsts' command.
skalberg
parents: 14211
diff changeset
   669
14606
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   670
* Pure: 'instance' now handles general arities with general sorts
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   671
  (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
   672
14547
e0c0179100c9 isabelle.css
kleing
parents: 14536
diff changeset
   673
* 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
   674
  (somewhat) independent of content. It is copied from lib/html/isabelle.css.
14547
e0c0179100c9 isabelle.css
kleing
parents: 14536
diff changeset
   675
  It can be changed to alter the colors/layout of generated pages.
e0c0179100c9 isabelle.css
kleing
parents: 14536
diff changeset
   676
14556
c5078f6c99a9 * Calculation commands "moreover" and "also" no longer interfere with
wenzelm
parents: 14551
diff changeset
   677
14175
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   678
*** Isar ***
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   679
14508
859b11514537 Experimental command for instantiation of locales in proof contexts:
ballarin
parents: 14503
diff changeset
   680
* 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
   681
  cut_tac, subgoal_tac and thin_tac:
14175
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   682
  - Now understand static (Isar) contexts.  As a consequence, users of Isar
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   683
    locales are no longer forced to write Isar proof scripts.
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   684
    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
   685
    emulations.
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   686
  - 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
   687
    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
   688
    This is consistent with the instantiation attribute "where".
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   689
14257
a7ef3f7588c5 Type inference bug in Isar attributes "where" and "of" fixed.
ballarin
parents: 14255
diff changeset
   690
* Attributes "where" and "of":
14285
92ed032e83a1 Isar: where attribute supports instantiation of type vars.
ballarin
parents: 14283
diff changeset
   691
  - 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
   692
    the instantiation string.  This fixes a bug that caused instantiated
92ed032e83a1 Isar: where attribute supports instantiation of type vars.
ballarin
parents: 14283
diff changeset
   693
    theorems to have too special types in some circumstances.
92ed032e83a1 Isar: where attribute supports instantiation of type vars.
ballarin
parents: 14283
diff changeset
   694
  - "where" permits explicit instantiations of type variables.
14257
a7ef3f7588c5 Type inference bug in Isar attributes "where" and "of" fixed.
ballarin
parents: 14255
diff changeset
   695
14556
c5078f6c99a9 * Calculation commands "moreover" and "also" no longer interfere with
wenzelm
parents: 14551
diff changeset
   696
* Calculation commands "moreover" and "also" no longer interfere with
c5078f6c99a9 * Calculation commands "moreover" and "also" no longer interfere with
wenzelm
parents: 14551
diff changeset
   697
  current facts ("this"), admitting arbitrary combinations with "then"
c5078f6c99a9 * Calculation commands "moreover" and "also" no longer interfere with
wenzelm
parents: 14551
diff changeset
   698
  and derived forms.
14283
516358ca7b42 moreover and also do not reset facts any more
kleing
parents: 14257
diff changeset
   699
14211
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   700
* Locales:
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   701
  - Goal statements involving the context element "includes" no longer
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   702
    generate theorems with internal delta predicates (those ending on
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   703
    "_axioms") in the premise.
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   704
    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
   705
  - 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
   706
    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
   707
  - 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
   708
    [intro?] and [elim?] (respectively) by default.
14508
859b11514537 Experimental command for instantiation of locales in proof contexts:
ballarin
parents: 14503
diff changeset
   709
  - Experimental command for instantiation of locales in proof contexts:
14551
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   710
        instantiate <label>[<attrs>]: <loc>
14508
859b11514537 Experimental command for instantiation of locales in proof contexts:
ballarin
parents: 14503
diff changeset
   711
    Instantiates locale <loc> and adds all its theorems to the current context
14551
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   712
    taking into account their attributes.  Label and attrs are optional
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   713
    modifiers, like in theorem declarations.  If present, names of
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   714
    instantiated theorems are qualified with <label>, and the attributes
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   715
    <attrs> are applied after any attributes these theorems might have already.
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   716
      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
   717
    "<loc> t1 ... tn" is expected from which instantiations of the parameters
14551
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   718
    are derived.  The command does not support old-style locales declared
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   719
    with "locale (open)".
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   720
      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
   721
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   722
* HOL: Tactic emulation methods induct_tac and case_tac understand static
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   723
  (Isar) contexts.
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   724
14556
c5078f6c99a9 * Calculation commands "moreover" and "also" no longer interfere with
wenzelm
parents: 14551
diff changeset
   725
14136
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   726
*** HOL ***
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   727
14624
9b3397a848c3 add HOL4
kleing
parents: 14610
diff changeset
   728
* Proof import: new image HOL4 contains the imported library from
9b3397a848c3 add HOL4
kleing
parents: 14610
diff changeset
   729
  the HOL4 system with about 2500 theorems. It is imported by
9b3397a848c3 add HOL4
kleing
parents: 14610
diff changeset
   730
  replaying proof terms produced by HOL4 in Isabelle. The HOL4 image
9b3397a848c3 add HOL4
kleing
parents: 14610
diff changeset
   731
  can be used like any other Isabelle image.  See
9b3397a848c3 add HOL4
kleing
parents: 14610
diff changeset
   732
  HOL/Import/HOL/README for more information.
9b3397a848c3 add HOL4
kleing
parents: 14610
diff changeset
   733
14398
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   734
* Simplifier:
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   735
  - Much improved handling of linear and partial orders.
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   736
    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
   737
    "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
   738
    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
   739
    to solve goals from the assumptions.
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   740
  - INCOMPATIBILITY: old proofs break occasionally.  Typically, applications
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   741
    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
   742
    is solved by simplification already.
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   743
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   744
* Numerics: new theory Ring_and_Field contains over 250 basic numerical laws,
14389
paulson
parents: 14380
diff changeset
   745
    all proved in axiomatic type classes for semirings, rings and fields.
paulson
parents: 14380
diff changeset
   746
paulson
parents: 14380
diff changeset
   747
* Numerics:
paulson
parents: 14380
diff changeset
   748
  - 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
   749
    now formalized using the Ring_and_Field theory mentioned above.
14389
paulson
parents: 14380
diff changeset
   750
  - INCOMPATIBILITY: simplification and arithmetic behaves somewhat differently
paulson
parents: 14380
diff changeset
   751
    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
   752
  - INCOMPATIBILITY: many type-specific arithmetic laws have gone.
14480
14b7923b3307 clarified
paulson
parents: 14464
diff changeset
   753
    Look for the general versions in Ring_and_Field (and Power if they concern
14b7923b3307 clarified
paulson
parents: 14464
diff changeset
   754
    exponentiation).
14389
paulson
parents: 14380
diff changeset
   755
14401
477380c74c1d removal of the legacy ML structure List
paulson
parents: 14399
diff changeset
   756
* Type "rat" of the rational numbers is now available in HOL-Complex.
14389
paulson
parents: 14380
diff changeset
   757
14255
e6e3e3f0deed Records:
schirmer
parents: 14254
diff changeset
   758
* Records:
e6e3e3f0deed Records:
schirmer
parents: 14254
diff changeset
   759
  - Record types are now by default printed with their type abbreviation
e6e3e3f0deed Records:
schirmer
parents: 14254
diff changeset
   760
    instead of the list of all field types. This can be configured via
e6e3e3f0deed Records:
schirmer
parents: 14254
diff changeset
   761
    the reference "print_record_type_abbr".
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   762
  - Simproc "record_upd_simproc" for simplification of multiple updates added
14255
e6e3e3f0deed Records:
schirmer
parents: 14254
diff changeset
   763
    (not enabled by default).
14427
cea7d2f76112 added record_ex_sel_eq_simproc
schirmer
parents: 14418
diff changeset
   764
  - 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
   765
    EX x. x = sel r to True (not enabled by default).
14255
e6e3e3f0deed Records:
schirmer
parents: 14254
diff changeset
   766
  - Tactic "record_split_simp_tac" to split and simplify records added.
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   767
14136
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   768
* 'specification' command added, allowing for definition by
14224
442c097c1437 Added info on the new 'finalconsts' command.
skalberg
parents: 14211
diff changeset
   769
  specification.  There is also an 'ax_specification' command that
442c097c1437 Added info on the new 'finalconsts' command.
skalberg
parents: 14211
diff changeset
   770
  introduces the new constants axiomatically.
14136
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   771
14375
a545da363b23 *** empty log message ***
nipkow
parents: 14361
diff changeset
   772
* arith(_tac) is now able to generate counterexamples for reals as well.
a545da363b23 *** empty log message ***
nipkow
parents: 14361
diff changeset
   773
14399
dc677b35e54f New lemmas about inversion of restricted functions.
ballarin
parents: 14398
diff changeset
   774
* HOL-Algebra: new locale "ring" for non-commutative rings.
dc677b35e54f New lemmas about inversion of restricted functions.
ballarin
parents: 14398
diff changeset
   775
14243
0e2ec694784d recursion
paulson
parents: 14237
diff changeset
   776
* HOL-ex: InductiveInvariant_examples illustrates advanced recursive function
14610
9c2e31e483b2 added HOL-Matrix, added HOL/Matrix/ROOT.ML
kleing
parents: 14606
diff changeset
   777
  definitions, thanks to Sava Krsti\'{c} and John Matthews.
9c2e31e483b2 added HOL-Matrix, added HOL/Matrix/ROOT.ML
kleing
parents: 14606
diff changeset
   778
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   779
* 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
   780
  matrix theory to linear programming.
14136
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   781
14380
04b603a6f17d *** empty log message ***
nipkow
parents: 14375
diff changeset
   782
* Unions and Intersections:
15119
e5f167042c1d undid UN/INT xsymbol syntax with subscripts.
nipkow
parents: 15103
diff changeset
   783
  The latex output syntax of UN and INT has been changed
e5f167042c1d undid UN/INT xsymbol syntax with subscripts.
nipkow
parents: 15103
diff changeset
   784
  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
   785
  i.e. the index formulae has become a subscript.
e5f167042c1d undid UN/INT xsymbol syntax with subscripts.
nipkow
parents: 15103
diff changeset
   786
  Similarly for "\Union x. B", and for \Inter instead of \Union.
14380
04b603a6f17d *** empty log message ***
nipkow
parents: 14375
diff changeset
   787
14418
b62323c85134 union/intersection over intervals
kleing
parents: 14401
diff changeset
   788
* Unions and Intersections over Intervals:
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   789
  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
   790
  also an x-symbol version with subscripts "\<Union>\<^bsub>i <= n\<^esub>. A"
14418
b62323c85134 union/intersection over intervals
kleing
parents: 14401
diff changeset
   791
  like in normal math, and corresponding versions for < and for intersection.
b62323c85134 union/intersection over intervals
kleing
parents: 14401
diff changeset
   792
15677
8770edbf8f28 *** empty log message ***
nipkow
parents: 15570
diff changeset
   793
* HOL/List: Ordering "lexico" is renamed "lenlex" and the standard
8770edbf8f28 *** empty log message ***
nipkow
parents: 15570
diff changeset
   794
  lexicographic dictonary ordering has been added as "lexord".
8770edbf8f28 *** empty log message ***
nipkow
parents: 15570
diff changeset
   795
14401
477380c74c1d removal of the legacy ML structure List
paulson
parents: 14399
diff changeset
   796
* 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
   797
  conflicted with ML Basis Library structures having the same names.
14380
04b603a6f17d *** empty log message ***
nipkow
parents: 14375
diff changeset
   798
14464
webertj
parents: 14427
diff changeset
   799
* 'refute' command added to search for (finite) countermodels.  Only works
webertj
parents: 14427
diff changeset
   800
  for a fragment of HOL.  The installation of an external SAT solver is
webertj
parents: 14427
diff changeset
   801
  highly recommended.  See "HOL/Refute.thy" for details.
webertj
parents: 14427
diff changeset
   802
14602
e06ded775eca Added entry for quickcheck command.
berghofe
parents: 14572
diff changeset
   803
* 'quickcheck' command: Allows to find counterexamples by evaluating
e06ded775eca Added entry for quickcheck command.
berghofe
parents: 14572
diff changeset
   804
  formulae under an assignment of free variables to random values.
e06ded775eca Added entry for quickcheck command.
berghofe
parents: 14572
diff changeset
   805
  In contrast to 'refute', it can deal with inductive datatypes,
e06ded775eca Added entry for quickcheck command.
berghofe
parents: 14572
diff changeset
   806
  but cannot handle quantifiers. See "HOL/ex/Quickcheck_Examples.thy"
e06ded775eca Added entry for quickcheck command.
berghofe
parents: 14572
diff changeset
   807
  for examples.
14464
webertj
parents: 14427
diff changeset
   808
14606
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   809
14536
43e436a4f293 added HOLCF/Streams.thy (with concatenation etc.)
oheimb
parents: 14508
diff changeset
   810
*** HOLCF ***
43e436a4f293 added HOLCF/Streams.thy (with concatenation etc.)
oheimb
parents: 14508
diff changeset
   811
43e436a4f293 added HOLCF/Streams.thy (with concatenation etc.)
oheimb
parents: 14508
diff changeset
   812
* 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
   813
14572
wenzelm
parents: 14561
diff changeset
   814
wenzelm
parents: 14561
diff changeset
   815
14136
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   816
New in Isabelle2003 (May 2003)
14606
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   817
------------------------------
14136
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   818
13280
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents: 13190
diff changeset
   819
*** General ***
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents: 13190
diff changeset
   820
13618
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   821
* Provers/simplifier:
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   822
13781
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   823
  - Completely reimplemented method simp (ML: Asm_full_simp_tac):
13618
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   824
    Assumptions are now subject to complete mutual simplification,
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   825
    not just from left to right. The simplifier now preserves
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   826
    the order of assumptions.
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   827
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   828
    Potential INCOMPATIBILITY:
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   829
13781
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   830
    -- simp sometimes diverges where the old version did
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   831
       not, e.g. invoking simp on the goal
13618
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   832
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   833
        [| P (f x); y = x; f x = f y |] ==> Q
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   834
13781
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   835
       now gives rise to the infinite reduction sequence
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   836
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   837
        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
   838
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   839
       Using "simp (asm_lr)" (ML: Asm_lr_simp_tac) instead often solves this
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   840
       kind of problem.
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   841
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   842
    -- Tactics combining classical reasoner and simplification (such as auto)
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   843
       are also affected by this change, because many of them rely on
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   844
       simp. They may sometimes diverge as well or yield a different numbers
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   845
       of subgoals. Try to use e.g. force, fastsimp, or safe instead of auto
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   846
       in case of problems. Sometimes subsequent calls to the classical
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   847
       reasoner will fail because a preceeding call to the simplifier too
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   848
       eagerly simplified the goal, e.g. deleted redundant premises.
13618
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   849
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   850
  - The simplifier trace now shows the names of the applied rewrite rules
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   851
13829
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   852
  - You can limit the number of recursive invocations of the simplifier
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   853
    during conditional rewriting (where the simplifie tries to solve the
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   854
    conditions before applying the rewrite rule):
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   855
    ML "simp_depth_limit := n"
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   856
    where n is an integer. Thus you can force termination where previously
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   857
    the simplifier would diverge.
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   858
13835
12b2ffbe543a Change to meta simplifier: congruence rules may now have frees as head of term.
ballarin
parents: 13829
diff changeset
   859
  - Accepts free variables as head terms in congruence rules.  Useful in Isar.
13829
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   860
13938
b033b53d0c1e Simplifier: congruence rule update.
ballarin
parents: 13899
diff changeset
   861
  - No longer aborts on failed congruence proof.  Instead, the
b033b53d0c1e Simplifier: congruence rule update.
ballarin
parents: 13899
diff changeset
   862
    congruence is ignored.
b033b53d0c1e Simplifier: congruence rule update.
ballarin
parents: 13899
diff changeset
   863
14008
f843528b9f3c Program extraction framework.
berghofe
parents: 13995
diff changeset
   864
* Pure: New generic framework for extracting programs from constructive
f843528b9f3c Program extraction framework.
berghofe
parents: 13995
diff changeset
   865
  proofs. See HOL/Extraction.thy for an example instantiation, as well
f843528b9f3c Program extraction framework.
berghofe
parents: 13995
diff changeset
   866
  as HOL/Extraction for some case studies.
f843528b9f3c Program extraction framework.
berghofe
parents: 13995
diff changeset
   867
13868
01b516b64233 *** empty log message ***
nipkow
parents: 13835
diff changeset
   868
* Pure: The main goal of the proof state is no longer shown by default, only
01b516b64233 *** empty log message ***
nipkow
parents: 13835
diff changeset
   869
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
   870
   PG menu: Isabelle/Isar -> Settings -> Show Main Goal
13815
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   871
(ML: Proof.show_main_goal).
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   872
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   873
* Pure: You can find all matching introduction rules for subgoal 1, i.e. all
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   874
rules whose conclusion matches subgoal 1:
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   875
      PG menu: Isabelle/Isar -> Show me -> matching rules
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   876
The rules are ordered by how closely they match the subgoal.
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   877
In particular, rules that solve a subgoal outright are displayed first
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   878
(or rather last, the way they are printed).
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   879
(ML: ProofGeneral.print_intros())
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   880
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   881
* Pure: New flag trace_unify_fail causes unification to print
13781
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   882
diagnostic information (PG: in trace buffer) when it fails. This is
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   883
useful for figuring out why single step proofs like rule, erule or
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   884
assumption failed.
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   885
13815
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   886
* Pure: Locale specifications now produce predicate definitions
13410
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   887
according to the body of text (covering assumptions modulo local
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   888
definitions); predicate "loc_axioms" covers newly introduced text,
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   889
while "loc" is cumulative wrt. all included locale expressions; the
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   890
latter view is presented only on export into the global theory
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   891
context; potential INCOMPATIBILITY, use "(open)" option to fall back
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   892
on the old view without predicates;
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   893
13459
83f41b047a39 * Pure: predefined locales "var" and "struct" are useful for sharing
wenzelm
parents: 13443
diff changeset
   894
* 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
   895
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
   896
``var x + var y + struct M'' as import;
83f41b047a39 * Pure: predefined locales "var" and "struct" are useful for sharing
wenzelm
parents: 13443
diff changeset
   897
13463
07747943c626 * Provers: Simplifier.simproc(_i) now provide sane interface for
wenzelm
parents: 13459
diff changeset
   898
* 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
   899
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
   900
include local facts of proof configuration (also covers active
13541
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   901
locales), cover fixed variables in index; may use "_" in term
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   902
specification; an optional limit for the number of printed facts may
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   903
be given (the default is 40);
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   904
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   905
* Pure: disallow duplicate fact bindings within new-style theory files
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   906
(batch-mode only);
13540
aede0306e214 * Pure: disallow duplicate fact bindings within new-style theory files;
wenzelm
parents: 13522
diff changeset
   907
13463
07747943c626 * Provers: Simplifier.simproc(_i) now provide sane interface for
wenzelm
parents: 13459
diff changeset
   908
* Provers: improved induct method: assumptions introduced by case
07747943c626 * Provers: Simplifier.simproc(_i) now provide sane interface for
wenzelm
parents: 13459
diff changeset
   909
"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
   910
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
   911
13550
5a176b8dda84 removal of blast.overloaded
paulson
parents: 13549
diff changeset
   912
* Provers: the function blast.overloaded has been removed: all constants
5a176b8dda84 removal of blast.overloaded
paulson
parents: 13549
diff changeset
   913
are regarded as potentially overloaded, which improves robustness in exchange
5a176b8dda84 removal of blast.overloaded
paulson
parents: 13549
diff changeset
   914
for slight decrease in efficiency;
5a176b8dda84 removal of blast.overloaded
paulson
parents: 13549
diff changeset
   915
13781
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   916
* Provers/linorder: New generic prover for transitivity reasoning over
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   917
linear orders.  Note: this prover is not efficient!
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   918
13522
934fffeb6f38 * Isar: preview of problems to finish 'show' now produce an error
wenzelm
parents: 13518
diff changeset
   919
* 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
   920
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
   921
13280
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents: 13190
diff changeset
   922
13158
8e86582a90d1 *** empty log message ***
nipkow
parents: 13042
diff changeset
   923
*** HOL ***
8e86582a90d1 *** empty log message ***
nipkow
parents: 13042
diff changeset
   924
13899
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   925
* arith(_tac)
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   926
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   927
 - Produces a counter example if it cannot prove a goal.
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   928
   Note that the counter example may be spurious if the goal is not a formula
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   929
   of quantifier-free linear arithmetic.
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   930
   In ProofGeneral the counter example appears in the trace buffer.
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   931
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   932
 - 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
   933
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   934
 - Calls full Presburger arithmetic (by Amine Chaieb) if quantifier-free
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   935
   linear arithmetic fails. This takes account of quantifiers and divisibility.
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   936
   Presburger arithmetic can also be called explicitly via presburger(_tac).
13899
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   937
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   938
* simp's arithmetic capabilities have been enhanced a bit: it now
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   939
takes ~= in premises into account (by performing a case split);
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   940
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   941
* 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
   942
are distributed over a sum of terms;
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   943
13735
7de9342aca7a HOL-Algebra partially ported to Isar.
ballarin
parents: 13648
diff changeset
   944
* New tactic "trans_tac" and method "trans" instantiate
7de9342aca7a HOL-Algebra partially ported to Isar.
ballarin
parents: 13648
diff changeset
   945
Provers/linorder.ML for axclasses "order" and "linorder" (predicates
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   946
"<=", "<" and "=").
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   947
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   948
* function INCOMPATIBILITIES: Pi-sets have been redefined and moved from main
13587
659813a3f879 GroupTheory and FuncSet
paulson
parents: 13570
diff changeset
   949
HOL to Library/FuncSet; constant "Fun.op o" is now called "Fun.comp";
659813a3f879 GroupTheory and FuncSet
paulson
parents: 13570
diff changeset
   950
13443
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   951
* 'typedef' command has new option "open" to suppress the set
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   952
definition;
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   953
13522
934fffeb6f38 * Isar: preview of problems to finish 'show' now produce an error
wenzelm
parents: 13518
diff changeset
   954
* 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
   955
Finite_Set);
13492
6aae8eb39a18 *** empty log message ***
nipkow
parents: 13478
diff changeset
   956
13443
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   957
* attribute [symmetric] now works for relations as well; it turns
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   958
(x,y) : R^-1 into (y,x) : R, and vice versa;
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   959
13613
531f1f524848 *** empty log message ***
nipkow
parents: 13587
diff changeset
   960
* induct over a !!-quantified statement (say !!x1..xn):
531f1f524848 *** empty log message ***
nipkow
parents: 13587
diff changeset
   961
  each "case" automatically performs "fix x1 .. xn" with exactly those names.
531f1f524848 *** empty log message ***
nipkow
parents: 13587
diff changeset
   962
13899
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   963
* Map: `empty' is no longer a constant but a syntactic abbreviation for
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   964
%x. None. Warning: empty_def now refers to the previously hidden definition
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   965
of the empty set.
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   966
14018
3ef6c509f29c Improved entry on Algebra.
ballarin
parents: 14011
diff changeset
   967
* Algebra: formalization of classical algebra.  Intended as base for
3ef6c509f29c Improved entry on Algebra.
ballarin
parents: 14011
diff changeset
   968
any algebraic development in Isabelle.  Currently covers group theory
3ef6c509f29c Improved entry on Algebra.
ballarin
parents: 14011
diff changeset
   969
(up to Sylow's theorem) and ring theory (Universal Property of
3ef6c509f29c Improved entry on Algebra.
ballarin
parents: 14011
diff changeset
   970
Univariate Polynomials).  Contributions welcome;
13960
70f9158b6695 Complex, etc
paulson
parents: 13954
diff changeset
   971
70f9158b6695 Complex, etc
paulson
parents: 13954
diff changeset
   972
* GroupTheory: deleted, since its material has been moved to Algebra;
70f9158b6695 Complex, etc
paulson
parents: 13954
diff changeset
   973
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   974
* Complex: new directory of the complex numbers with numeric constants,
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   975
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
   976
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
   977
2160abf7cfe7 removal of the image HOL-Real and merging of HOL-Real-ex with HOL-Complex-ex
paulson
parents: 13960
diff changeset
   978
* 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
   979
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   980
* 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
   981
Fleuriot);
13960
70f9158b6695 Complex, etc
paulson
parents: 13954
diff changeset
   982
13549
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   983
* Real/HahnBanach: updated and adapted to locales;
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   984
13995
ab988a7a8a3b NEWS updated for HOL-Algebra.
ballarin
parents: 13966
diff changeset
   985
* NumberTheory: added Gauss's law of quadratic reciprocity (by Avigad,
ab988a7a8a3b NEWS updated for HOL-Algebra.
ballarin
parents: 13966
diff changeset
   986
Gray and Kramer);
13872
601514e63534 Gauss, UNITY, ZF
paulson
parents: 13868
diff changeset
   987
601514e63534 Gauss, UNITY, ZF
paulson
parents: 13868
diff changeset
   988
* UNITY: added the Meier-Sanders theory of progress sets;
601514e63534 Gauss, UNITY, ZF
paulson
parents: 13868
diff changeset
   989
14011
5fa103f5618c MicroJava LBV
kleing
parents: 14010
diff changeset
   990
* MicroJava: bytecode verifier and lightweight bytecode verifier
5fa103f5618c MicroJava LBV
kleing
parents: 14010
diff changeset
   991
as abstract algorithms, instantiated to the JVM;
5fa103f5618c MicroJava LBV
kleing
parents: 14010
diff changeset
   992
14010
schirmer
parents: 14008
diff changeset
   993
* Bali: Java source language formalization. Type system, operational
schirmer
parents: 14008
diff changeset
   994
semantics, axiomatic semantics. Supported language features:
schirmer
parents: 14008
diff changeset
   995
classes, interfaces, objects,virtual methods, static methods,
schirmer
parents: 14008
diff changeset
   996
static/instance fields, arrays, access modifiers, definite
schirmer
parents: 14008
diff changeset
   997
assignment, exceptions.
13549
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   998
14011
5fa103f5618c MicroJava LBV
kleing
parents: 14010
diff changeset
   999
13549
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
  1000
*** ZF ***
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
  1001
15154
db582d6e89de new isatool dimacs2hol
webertj
parents: 15148
diff changeset
  1002
* ZF/Constructible: consistency proof for AC (Gdel's constructible
13549
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
  1003
universe, etc.);
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
  1004
13872
601514e63534 Gauss, UNITY, ZF
paulson
parents: 13868
diff changeset
  1005
* Main ZF: virtually all theories converted to new-style format;
13518
a0749ce05100 *** empty log message ***
nipkow
parents: 13500
diff changeset
  1006
13280
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents: 13190
diff changeset
  1007
13478
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
  1008
*** ML ***
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
  1009
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
  1010
* Pure: Tactic.prove provides sane interface for internal proofs;
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
  1011
omits the infamous "standard" operation, so this is more appropriate
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
  1012
than prove_goalw_cterm in many situations (e.g. in simprocs);
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
  1013
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
  1014
* Pure: improved error reporting of simprocs;
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
  1015
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
  1016
* Provers: Simplifier.simproc(_i) provides sane interface for setting
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
  1017
up simprocs;
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
  1018
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
  1019
13953
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
  1020
*** Document preparation ***
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
  1021
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
  1022
* uses \par instead of \\ for line breaks in theory text. This may
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
  1023
shift some page breaks in large documents. To get the old behaviour
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
  1024
use \renewcommand{\isanewline}{\mbox{}\\\mbox{}} in root.tex.
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
  1025
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
  1026
* minimized dependencies of isabelle.sty and isabellesym.sty on
13953
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
  1027
other packages
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
  1028
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
  1029
* \<euro> now needs package babel/greek instead of marvosym (which
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
  1030
broke \Rightarrow)
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
  1031
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
  1032
* normal size for \<zero>...\<nine> (uses \mathbf instead of
13954
2e989faba65a fixed \<0>..\<9> (-> \<zero>..\<nine>)
kleing
parents: 13953
diff changeset
  1033
textcomp package)
13953
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
  1034
13280
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents: 13190
diff changeset
  1035
14572
wenzelm
parents: 14561
diff changeset
  1036
12984
6071200efbf6 fixed date;
wenzelm
parents: 12964
diff changeset
  1037
New in Isabelle2002 (March 2002)
6071200efbf6 fixed date;
wenzelm
parents: 12964
diff changeset
  1038
--------------------------------
11474
wenzelm
parents: 11437
diff changeset
  1039
11572
wenzelm
parents: 11551
diff changeset
  1040
*** Document preparation ***
wenzelm
parents: 11551
diff changeset
  1041
11842
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
  1042
* greatly simplified document preparation setup, including more
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
  1043
graceful interpretation of isatool usedir -i/-d/-D options, and more
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
  1044
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
  1045
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
  1046
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
  1047
"isatool usedir -D output HOL Test && isatool document Test/output";
11842
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
  1048
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
  1049
* theory dependency graph may now be incorporated into documents;
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
  1050
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
  1051
with \includegraphics of LaTeX;
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
  1052
11864
371ce685b0ec * proper spacing of consecutive markup elements, especially text
wenzelm
parents: 11842
diff changeset
  1053
* proper spacing of consecutive markup elements, especially text
371ce685b0ec * proper spacing of consecutive markup elements, especially text
wenzelm
parents: 11842
diff changeset
  1054
blocks after section headings;
371ce685b0ec * proper spacing of consecutive markup elements, especially text
wenzelm
parents: 11842
diff changeset
  1055
11572
wenzelm
parents: 11551
diff changeset
  1056
* support bold style (for single symbols only), input syntax is like
wenzelm
parents: 11551
diff changeset
  1057
this: "\<^bold>\<alpha>" or "\<^bold>A";
wenzelm
parents: 11551
diff changeset
  1058
11814
wenzelm
parents: 11802
diff changeset
  1059
* \<bullet> is now output as bold \cdot by default, which looks much
11572
wenzelm
parents: 11551
diff changeset
  1060
better in printed text;
wenzelm
parents: 11551
diff changeset
  1061
11712
deb8cac87063 * added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
wenzelm
parents: 11702
diff changeset
  1062
* added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
deb8cac87063 * added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
wenzelm
parents: 11702
diff changeset
  1063
note that these symbols are currently unavailable in Proof General /
12769
wenzelm
parents: 12754
diff changeset
  1064
X-Symbol; new symbols \<zero>, \<one>, ..., \<nine>, and \<euro>;
12690
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
  1065
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
  1066
* isatool latex no longer depends on changed TEXINPUTS, instead
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
  1067
isatool document copies the Isabelle style files to the target
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
  1068
location;
11712
deb8cac87063 * added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
wenzelm
parents: 11702
diff changeset
  1069
11572
wenzelm
parents: 11551
diff changeset
  1070
11633
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
  1071
*** Isar ***
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
  1072
12312
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
  1073
* Pure/Provers: improved proof by cases and induction;
12280
wenzelm
parents: 12253
diff changeset
  1074
  - 'case' command admits impromptu naming of parameters (such as
wenzelm
parents: 12253
diff changeset
  1075
    "case (Suc n)");
wenzelm
parents: 12253
diff changeset
  1076
  - 'induct' method divinates rule instantiation from the inductive
wenzelm
parents: 12253
diff changeset
  1077
    claim; no longer requires excessive ?P bindings for proper
wenzelm
parents: 12253
diff changeset
  1078
    instantiation of cases;
wenzelm
parents: 12253
diff changeset
  1079
  - 'induct' method properly enumerates all possibilities of set/type
wenzelm
parents: 12253
diff changeset
  1080
    rules; as a consequence facts may be also passed through *type*
wenzelm
parents: 12253
diff changeset
  1081
    rules without further ado;
wenzelm
parents: 12253
diff changeset
  1082
  - 'induct' method now derives symbolic cases from the *rulified*
wenzelm
parents: 12253
diff changeset
  1083
    rule (before it used to rulify cases stemming from the internal
wenzelm
parents: 12253
diff changeset
  1084
    atomized version); this means that the context of a non-atomic
wenzelm
parents: 12253
diff changeset
  1085
    statement becomes is included in the hypothesis, avoiding the
wenzelm
parents: 12253
diff changeset
  1086
    slightly cumbersome show "PROP ?case" form;
wenzelm
parents: 12253
diff changeset
  1087
  - 'induct' may now use elim-style induction rules without chaining
wenzelm
parents: 12253
diff changeset
  1088
    facts, using ``missing'' premises from the goal state; this allows
wenzelm
parents: 12253
diff changeset
  1089
    rules stemming from inductive sets to be applied in unstructured
wenzelm
parents: 12253
diff changeset
  1090
    scripts, while still benefitting from proper handling of non-atomic
wenzelm
parents: 12253
diff changeset
  1091
    statements; NB: major inductive premises need to be put first, all
wenzelm
parents: 12253
diff changeset
  1092
    the rest of the goal is passed through the induction;
wenzelm
parents: 12253
diff changeset
  1093
  - 'induct' proper support for mutual induction involving non-atomic
wenzelm
parents: 12253
diff changeset
  1094
    rule statements (uses the new concept of simultaneous goals, see
wenzelm
parents: 12253
diff changeset
  1095
    below);
12853
de505273c971 Isar cases/induct: no backtracking;
wenzelm
parents: 12850
diff changeset
  1096
  - append all possible rule selections, but only use the first
de505273c971 Isar cases/induct: no backtracking;
wenzelm
parents: 12850
diff changeset
  1097
    success (no backtracking);
11995
4a622f5fb164 - 'induct' may now use elim-style induction rules without chaining
wenzelm
parents: 11986
diff changeset
  1098
  - 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
  1099
  - 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
  1100
  - 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
  1101
    General versions);
11995
4a622f5fb164 - 'induct' may now use elim-style induction rules without chaining
wenzelm
parents: 11986
diff changeset
  1102
  - 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
  1103
  - 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
  1104
12163
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
  1105
* Pure: support multiple simultaneous goal statements, for example
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
  1106
"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
  1107
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
  1108
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
  1109
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
  1110
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
  1111
fails:
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
  1112
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
  1113
  assume "A & B" then have A and B ..   (*".." fails*)
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
  1114
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
  1115
better use "obtain" in situations as above; alternative refer to
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
  1116
multi-step methods like 'auto', 'simp_all', 'blast+' etc.;
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
  1117
12078
4eb8061286e5 * Isar/Pure: proper integration with ``locales''; unlike the original
wenzelm
parents: 12034
diff changeset
  1118
* Pure: proper integration with ``locales''; unlike the original
15154
db582d6e89de new isatool dimacs2hol
webertj
parents: 15148
diff changeset
  1119
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
  1120
contexts rather than raw logical ones (e.g. we admit to include
12280
wenzelm
parents: 12253
diff changeset
  1121
attributes everywhere); operations on locales include merge and
12964
wenzelm
parents: 12924
diff changeset
  1122
rename; support for implicit arguments (``structures''); simultaneous
wenzelm
parents: 12924
diff changeset
  1123
type-inference over imports and text; see also HOL/ex/Locales.thy for
wenzelm
parents: 12924
diff changeset
  1124
some examples;
12078
4eb8061286e5 * Isar/Pure: proper integration with ``locales''; unlike the original
wenzelm
parents: 12034
diff changeset
  1125
12707
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
  1126
* Pure: the following commands have been ``localized'', supporting a
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
  1127
target locale specification "(in name)": 'lemma', 'theorem',
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
  1128
'corollary', 'lemmas', 'theorems', 'declare'; the results will be
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
  1129
stored both within the locale and at the theory level (exported and
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
  1130
qualified by the locale name);
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
  1131
12964
wenzelm
parents: 12924
diff changeset
  1132
* Pure: theory goals may now be specified in ``long'' form, with
wenzelm
parents: 12924
diff changeset
  1133
ad-hoc contexts consisting of arbitrary locale elements. for example
wenzelm
parents: 12924
diff changeset
  1134
``lemma foo: fixes x assumes "A x" shows "B x"'' (local syntax and
wenzelm
parents: 12924
diff changeset
  1135
definitions may be given, too); the result is a meta-level rule with
wenzelm
parents: 12924
diff changeset
  1136
the context elements being discharged in the obvious way;
wenzelm
parents: 12924
diff changeset
  1137
wenzelm
parents: 12924
diff changeset
  1138
* Pure: new proof command 'using' allows to augment currently used
wenzelm
parents: 12924
diff changeset
  1139
facts after a goal statement ('using' is syntactically analogous to
wenzelm
parents: 12924
diff changeset
  1140
'apply', but acts on the goal's facts only); this allows chained facts
wenzelm
parents: 12924
diff changeset
  1141
to be separated into parts given before and after a claim, as in
wenzelm
parents: 12924
diff changeset
  1142
``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
  1143
11722
78cf55fd57c6 * Isar/Pure: fixed 'token_translation' command;
wenzelm
parents: 11712
diff changeset
  1144
* Pure: renamed "antecedent" case to "rule_context";
78cf55fd57c6 * Isar/Pure: fixed 'token_translation' command;
wenzelm
parents: 11712
diff changeset
  1145
12964
wenzelm
parents: 12924
diff changeset
  1146
* Pure: new 'judgment' command records explicit information about the
wenzelm
parents: 12924
diff changeset
  1147
object-logic embedding (used by several tools internally); no longer
wenzelm
parents: 12924
diff changeset
  1148
use hard-wired "Trueprop";
wenzelm
parents: 12924
diff changeset
  1149
11738
7c7a902a5c65 * Pure: added 'corollary' command;
wenzelm
parents: 11722
diff changeset
  1150
* Pure: added 'corollary' command;
7c7a902a5c65 * Pure: added 'corollary' command;
wenzelm
parents: 11722
diff changeset
  1151
11722
78cf55fd57c6 * Isar/Pure: fixed 'token_translation' command;
wenzelm
parents: 11712
diff changeset
  1152
* Pure: fixed 'token_translation' command;
78cf55fd57c6 * Isar/Pure: fixed 'token_translation' command;
wenzelm
parents: 11712
diff changeset
  1153
11899
e543b0f01a58 * Pure: removed obsolete 'exported' attribute;
wenzelm
parents: 11864
diff changeset
  1154
* Pure: removed obsolete 'exported' attribute;
e543b0f01a58 * Pure: removed obsolete 'exported' attribute;
wenzelm
parents: 11864
diff changeset
  1155
11933
wenzelm
parents: 11930
diff changeset
  1156
* Pure: dummy pattern "_" in is/let is now automatically lifted over
wenzelm
parents: 11930
diff changeset
  1157
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
  1158
supersedes more cumbersome ... (is "ALL x. _ x --> ?C x");
e543b0f01a58 * Pure: removed obsolete 'exported' attribute;
wenzelm
parents: 11864
diff changeset
  1159
11952
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
  1160
* 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
  1161
statements (atomic meta-level propositions); setup controlled via
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
  1162
rewrite rules declarations of 'atomize' attribute; example
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
  1163
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
  1164
proof *scripts*;
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
  1165
12106
4a8558dbb6a0 * Isar/Pure: emulation of instantiation tactics (rule_tac, cut_tac,
wenzelm
parents: 12078
diff changeset
  1166
* 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
  1167
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
  1168
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
  1169
especially important for locales);
4a8558dbb6a0 * Isar/Pure: emulation of instantiation tactics (rule_tac, cut_tac,
wenzelm
parents: 12078
diff changeset
  1170
12312
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
  1171
* 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
  1172
mode;
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
  1173
12405
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
  1174
* Pure/obtain: the formal conclusion "thesis", being marked as
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
  1175
``internal'', may no longer be reference directly in the text;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
  1176
potential INCOMPATIBILITY, may need to use "?thesis" in rare
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
  1177
situations;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
  1178
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
  1179
* Pure: generic 'sym' attribute which declares a rule both as pure
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
  1180
'elim?' and for the 'symmetric' operation;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
  1181
12877
b9635eb8a448 * Isar/Pure: marginal comments ``--'' may now occur just anywhere in the text;
wenzelm
parents: 12853
diff changeset
  1182
* 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
  1183
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
  1184
discontinued;
b9635eb8a448 * Isar/Pure: marginal comments ``--'' may now occur just anywhere in the text;
wenzelm
parents: 12853
diff changeset
  1185
13023
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
  1186
* 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
  1187
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
  1188
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
  1189
12364
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
  1190
* Pure/Provers/classical: simplified integration with pure rule
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
  1191
attributes and methods; the classical "intro?/elim?/dest?"
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
  1192
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
  1193
includes classically swapped intros; "intro" and "elim" methods no
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
  1194
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
  1195
AddXIs/AddXEs/AddXDs; all of this has some potential for
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
  1196
INCOMPATIBILITY;
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
  1197
12405
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
  1198
* Provers/classical: attribute 'swapped' produces classical inversions
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
  1199
of introduction rules;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
  1200
12364
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
  1201
* Provers/simplifier: 'simplified' attribute may refer to explicit
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
  1202
rules instead of full simplifier context; 'iff' attribute handles
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
  1203
conditional rules;
11936
fef099613354 * Provers: 'simplified' attribute may refer to explicit rules instead
wenzelm
parents: 11933
diff changeset
  1204
11745
06cd8c3b5487 * HOL: 'typedef' now allows alternative names for Rep/Abs morphisms;
wenzelm
parents: 11738
diff changeset
  1205
* 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
  1206
11690
cb64368fb405 improved proof by cases and induction;
wenzelm
parents: 11663
diff changeset
  1207
* HOL: 'recdef' now fails on unfinished automated proofs, use
11633
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
  1208
"(permissive)" option to recover old behavior;
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
  1209
11933
wenzelm
parents: 11930
diff changeset
  1210
* HOL: 'inductive' no longer features separate (collective) attributes
wenzelm
parents: 11930
diff changeset
  1211
for 'intros' (was found too confusing);
wenzelm
parents: 11930
diff changeset
  1212
12405
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
  1213
* HOL: properly declared induction rules less_induct and
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
  1214
wf_induct_rule;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
  1215
11788
60054fee3c16 canonical 'cases'/'induct' rules for n-tuples (n=3..7)
kleing
parents: 11745
diff changeset
  1216
11474
wenzelm
parents: 11437
diff changeset
  1217
*** HOL ***
wenzelm
parents: 11437
diff changeset
  1218
11702
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1219
* HOL: moved over to sane numeral syntax; the new policy is as
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1220
follows:
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1221
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1222
  - 0 and 1 are polymorphic constants, which are defined on any
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1223
  numeric type (nat, int, real etc.);
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1224
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1225
  - 2, 3, 4, ... and -1, -2, -3, ... are polymorphic numerals, based
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1226
  binary representation internally;
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1227
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1228
  - type nat has special constructor Suc, and generally prefers Suc 0
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1229
  over 1::nat and Suc (Suc 0) over 2::nat;
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1230
12364
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
  1231
This change may cause significant problems of INCOMPATIBILITY; here
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
  1232
are some hints on converting existing sources:
11702
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1233
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1234
  - due to the new "num" token, "-0" and "-1" etc. are now atomic
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1235
  entities, so expressions involving "-" (unary or binary minus) need
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1236
  to be spaced properly;
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1237
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1238
  - existing occurrences of "1" may need to be constraint "1::nat" or
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1239
  even replaced by Suc 0; similar for old "2";
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1240
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1241
  - replace "#nnn" by "nnn", and "#-nnn" by "-nnn";
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1242
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1243
  - remove all special provisions on numerals in proofs;
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
  1244
13042
wenzelm
parents: 13025
diff changeset
  1245
* HOL: simp rules nat_number expand numerals on nat to Suc/0
12837
74ce01905e57 * HOL: nat_number_of;
wenzelm
parents: 12832
diff changeset
  1246
representation (depends on bin_arith_simps in the default context);
74ce01905e57 * HOL: nat_number_of;
wenzelm
parents: 12832
diff changeset
  1247
12736
80f10551fb59 * HOL: symbolic syntax for x^2 (numeral 2);
wenzelm
parents: 12734
diff changeset
  1248
* HOL: symbolic syntax for x^2 (numeral 2);
80f10551fb59 * HOL: symbolic syntax for x^2 (numeral 2);
wenzelm
parents: 12734
diff changeset
  1249
12335
db4d5f498742 * HOL: the class of all HOL types is now called "type" rather than
wenzelm
parents: 12312
diff changeset
  1250
* 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
  1251
"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
  1252
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
  1253
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
  1254
"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
  1255
12280
wenzelm
parents: 12253
diff changeset
  1256
* HOL/record package improvements:
wenzelm
parents: 12253
diff changeset
  1257
  - new derived operations "fields" to build a partial record section,
wenzelm
parents: 12253
diff changeset
  1258
    "extend" to promote a fixed record to a record scheme, and
wenzelm
parents: 12253
diff changeset
  1259
    "truncate" for the reverse; cf. theorems "xxx.defs", which are *not*
wenzelm
parents: 12253
diff changeset
  1260
    declared as simp by default;
12587
3f3d2ffb5df5 HOL/record: shared operations ("more", "fields", etc.) now need to be
wenzelm
parents: 12564
diff changeset
  1261
  - 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
  1262
    qualified) --- potential INCOMPATIBILITY;
12280
wenzelm
parents: 12253
diff changeset
  1263
  - removed "make_scheme" operations (use "make" with "extend") --
wenzelm
parents: 12253
diff changeset
  1264
    INCOMPATIBILITY;
11937
2a2b1182a23b * HOL/record:
wenzelm
parents: 11936
diff changeset
  1265
  - removed "more" class (simply use "term") -- INCOMPATIBILITY;
12253
1886dc96b7e9 * HOL/record: cases/induct for more parts;
wenzelm
parents: 12245
diff changeset
  1266
  - provides cases/induct rules for use with corresponding Isar
1886dc96b7e9 * HOL/record: cases/induct for more parts;
wenzelm
parents: 12245
diff changeset
  1267
    methods (for concrete records, record schemes, concrete more
12280
wenzelm
parents: 12253
diff changeset
  1268
    parts, and schematic more parts -- in that order);
11930
1accec985349 * HOL/record:
wenzelm
parents: 11921
diff changeset
  1269
  - internal definitions directly based on a light-weight abstract
1accec985349 * HOL/record:
wenzelm
parents: 11921
diff changeset
  1270
    theory of product types over typedef rather than datatype;
1accec985349 * HOL/record:
wenzelm
parents: 11921
diff changeset
  1271
13023
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
  1272
* 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
  1273
specifications; specific support for HOL constructs such as inductive
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
  1274
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
  1275
via 'generate_code' theory section;
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
  1276
11933
wenzelm
parents: 11930
diff changeset
  1277
* HOL: canonical cases/induct rules for n-tuples (n = 3..7);
wenzelm
parents: 11930
diff changeset
  1278
13824
e4d8dea6dfc2 minor updates to pre-2002 release
paulson
parents: 13815
diff changeset
  1279
* HOL: consolidated and renamed several theories.  In particular:
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
  1280
        Ord.thy has been absorbed into HOL.thy
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
  1281
        String.thy has been absorbed into List.thy
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
  1282
11802
1d5f5d2427d2 * HOL: concrete setsum syntax "\<Sum>i:A. b" == "setsum (%i. b) A"
wenzelm
parents: 11797
diff changeset
  1283
* 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
  1284
(beware of argument permutation!);
1d5f5d2427d2 * HOL: concrete setsum syntax "\<Sum>i:A. b" == "setsum (%i. b) A"
wenzelm
parents: 11797
diff changeset
  1285
11657
03c4a5c08a79 *** empty log message ***
wenzelm
parents: 11633
diff changeset
  1286
* HOL: linorder_less_split superseded by linorder_cases;
03c4a5c08a79 *** empty log message ***
wenzelm
parents: 11633
diff changeset
  1287
12917
0fd3caa5d8b2 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12899
diff changeset
  1288
* HOL/List: "nodups" renamed to "distinct";
12889
1de4f0b824a8 *** empty log message ***
nipkow
parents: 12877
diff changeset
  1289
11633
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
  1290
* HOL: added "The" definite description operator; move Hilbert's "Eps"
13824
e4d8dea6dfc2 minor updates to pre-2002 release
paulson
parents: 13815
diff changeset
  1291
to peripheral theory "Hilbert_Choice"; some INCOMPATIBILITIES:
e4d8dea6dfc2 minor updates to pre-2002 release
paulson
parents: 13815
diff changeset
  1292
  - Ex_def has changed, now need to use some_eq_ex
11437
2338bce575ae HOL: added "The";
wenzelm
parents: 11397
diff changeset
  1293
11572
wenzelm
parents: 11551
diff changeset
  1294
* HOL: made split_all_tac safe; EXISTING PROOFS MAY FAIL OR LOOP, so
wenzelm
parents: 11551
diff changeset
  1295
in this (rare) case use:
wenzelm
parents: 11551
diff changeset
  1296
wenzelm
parents: 11551
diff changeset
  1297
  delSWrapper "split_all_tac"
wenzelm
parents: 11551
diff changeset
  1298
  addSbefore ("unsafe_split_all_tac", unsafe_split_all_tac)
wenzelm
parents: 11551
diff changeset
  1299
wenzelm
parents: 11551
diff changeset
  1300
* HOL: added safe wrapper "split_conv_tac" to claset; EXISTING PROOFS
11474
wenzelm
parents: 11437
diff changeset
  1301
MAY FAIL;
11361
879e53d92f51 *** empty log message ***
nipkow
parents: 11314
diff changeset
  1302
11572
wenzelm
parents: 11551
diff changeset
  1303
* HOL: introduced f^n = f o ... o f; warning: due to the limits of
wenzelm
parents: 11551
diff changeset
  1304
Isabelle's type classes, ^ on functions and relations has too general
wenzelm
parents: 11551
diff changeset
  1305
a domain, namely ('a * 'b) set and 'a => 'b; this means that it may be
wenzelm
parents: 11551
diff changeset
  1306
necessary to attach explicit type constraints;
11307
891fbd3f4881 *** empty log message ***
nipkow
parents: 11241
diff changeset
  1307
12917
0fd3caa5d8b2 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12899
diff changeset
  1308
* HOL/Relation: the prefix name of the infix "O" has been changed from
0fd3caa5d8b2 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12899
diff changeset
  1309
"comp" to "rel_comp"; INCOMPATIBILITY: a few theorems have been
0fd3caa5d8b2 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12899
diff changeset
  1310
renamed accordingly (eg "compI" -> "rel_compI").
12489
c92e38c3cbaa *** empty log message ***
nipkow
parents: 12472
diff changeset
  1311
11487
95071c9e85a3 * HOL: syntax translations now work properly with numerals and records
wenzelm
parents: 11475
diff changeset
  1312
* 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
  1313
expressions;
11474
wenzelm
parents: 11437
diff changeset
  1314
12457
cbfc53e45476 * HOL: bounded abstraction now uses syntax "%" / "\<lambda>" instead
wenzelm
parents: 12405
diff changeset
  1315
* HOL: bounded abstraction now uses syntax "%" / "\<lambda>" instead
cbfc53e45476 * HOL: bounded abstraction now uses syntax "%" / "\<lambda>" instead
wenzelm
parents: 12405
diff changeset
  1316
of "lam" -- INCOMPATIBILITY;
11474
wenzelm
parents: 11437
diff changeset
  1317
11933
wenzelm
parents: 11930
diff changeset
  1318
* HOL: got rid of some global declarations (potential INCOMPATIBILITY
wenzelm
parents: 11930
diff changeset
  1319
for ML tools): const "()" renamed "Product_Type.Unity", type "unit"
wenzelm
parents: 11930
diff changeset
  1320
renamed "Product_Type.unit";
11611
b0c69f4db64c HOL: eliminated global items;
wenzelm
parents: 11572
diff changeset
  1321
12564
226873bffa3a *** empty log message ***
nipkow
parents: 12563
diff changeset
  1322
* HOL: renamed rtrancl_into_rtrancl2 to converse_rtrancl_into_rtrancl
226873bffa3a *** empty log message ***
nipkow
parents: 12563
diff changeset
  1323
12924
02eb40cde931 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12917
diff changeset
  1324
* HOL: removed obsolete theorem "optionE" (use "option.exhaust", or
02eb40cde931 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12917
diff changeset
  1325
the "cases" method);
02eb40cde931 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12917
diff changeset
  1326
12597
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
  1327
* HOL/GroupTheory: group theory examples including Sylow's theorem (by
15154
db582d6e89de new isatool dimacs2hol
webertj
parents: 15148
diff changeset
  1328
Florian Kammller);
12597
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
  1329
12608
2df381faa787 * ZF/IMP: updated and converted to new-style theory format;
wenzelm
parents: 12597
diff changeset
  1330
* 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
  1331
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
  1332
some explanations (by Gerwin Klein);
12597
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
  1333
12734
c5f6d8259ecd HOL-Real/Complex_Numbers;
wenzelm
parents: 12728
diff changeset
  1334
* HOL-Real: added Complex_Numbers (by Gertrud Bauer);
c5f6d8259ecd HOL-Real/Complex_Numbers;
wenzelm
parents: 12728
diff changeset
  1335
12690
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
  1336
* HOL-Hyperreal is now a logic image;
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
  1337
11611
b0c69f4db64c HOL: eliminated global items;
wenzelm
parents: 11572
diff changeset
  1338
12022
9c3377b133c0 HOLCF: proper rep_datatype lift (see theory Lift); use plain induct_tac
wenzelm
parents: 11995
diff changeset
  1339
*** HOLCF ***
9c3377b133c0 HOLCF: proper rep_datatype lift (see theory Lift); use plain induct_tac
wenzelm
parents: 11995
diff changeset
  1340
12622
wenzelm
parents: 12608
diff changeset
  1341
* Isar: consts/constdefs supports mixfix syntax for continuous
wenzelm
parents: 12608
diff changeset
  1342
operations;
wenzelm
parents: 12608
diff changeset
  1343
wenzelm
parents: 12608
diff changeset
  1344
* Isar: domain package adapted to new-style theory format, e.g. see
wenzelm
parents: 12608
diff changeset
  1345
HOLCF/ex/Dnat.thy;
wenzelm
parents: 12608
diff changeset
  1346
wenzelm
parents: 12608
diff changeset
  1347
* theory Lift: proper use of rep_datatype lift instead of ML hacks --
12280
wenzelm
parents: 12253
diff changeset
  1348
potential INCOMPATIBILITY; now use plain induct_tac instead of former
wenzelm
parents: 12253
diff changeset
  1349
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
  1350
12597
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
  1351
* 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
  1352
12022
9c3377b133c0 HOLCF: proper rep_datatype lift (see theory Lift); use plain induct_tac
wenzelm
parents: 11995
diff changeset
  1353
11474
wenzelm
parents: 11437
diff changeset
  1354
*** ZF ***
wenzelm
parents: 11437
diff changeset
  1355
12622
wenzelm
parents: 12608
diff changeset
  1356
* Isar: proper integration of logic-specific tools and packages,
wenzelm
parents: 12608
diff changeset
  1357
including theory commands '(co)inductive', '(co)datatype',
wenzelm
parents: 12608
diff changeset
  1358
'rep_datatype', 'inductive_cases', as well as methods 'ind_cases',
wenzelm
parents: 12608
diff changeset
  1359
'induct_tac', 'case_tac', and 'typecheck' (with attribute 'TC');
wenzelm
parents: 12608
diff changeset
  1360
wenzelm
parents: 12608
diff changeset
  1361
* theory Main no longer includes AC; for the Axiom of Choice, base
wenzelm
parents: 12608
diff changeset
  1362
your theory on Main_ZFC;
wenzelm
parents: 12608
diff changeset
  1363
wenzelm
parents: 12608
diff changeset
  1364
* the integer library now covers quotients and remainders, with many
wenzelm
parents: 12608
diff changeset
  1365
laws relating division to addition, multiplication, etc.;
12563
3813bcab493d ZF/Main
paulson
parents: 12538
diff changeset
  1366
12280
wenzelm
parents: 12253
diff changeset
  1367
* ZF/UNITY: Chandy and Misra's UNITY is now available in ZF, giving a
wenzelm
parents: 12253
diff changeset
  1368
typeless version of the formalism;
wenzelm
parents: 12253
diff changeset
  1369
13025
wenzelm
parents: 13023
diff changeset
  1370
* ZF/AC, Coind, IMP, Resid: updated and converted to new-style theory
wenzelm
parents: 13023
diff changeset
  1371
format;
12608
2df381faa787 * ZF/IMP: updated and converted to new-style theory format;
wenzelm
parents: 12597
diff changeset
  1372
12280
wenzelm
parents: 12253
diff changeset
  1373
* 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
  1374
including theory Multiset for multiset orderings; converted to
2df381faa787 * ZF/IMP: updated and converted to new-style theory format;
wenzelm
parents: 12597
diff changeset
  1375
new-style theory format;
12177
b1c16d685a99 * ZF: new-style theory commands 'inductive', 'inductive_cases', and
wenzelm
parents: 12163
diff changeset
  1376
13025
wenzelm
parents: 13023
diff changeset
  1377
* ZF: many new theorems about lists, ordinals, etc.;
12850
paulson
parents: 12837
diff changeset
  1378
11474
wenzelm
parents: 11437
diff changeset
  1379
wenzelm
parents: 11437
diff changeset
  1380
*** General ***
wenzelm
parents: 11437
diff changeset
  1381
12280
wenzelm
parents: 12253
diff changeset
  1382
* Pure/kernel: meta-level proof terms (by Stefan Berghofer); reference
wenzelm
parents: 12253
diff changeset
  1383
variable proof controls level of detail: 0 = no proofs (only oracle
wenzelm
parents: 12253
diff changeset
  1384
dependencies), 1 = lemma dependencies, 2 = compact proof terms; see
wenzelm
parents: 12253
diff changeset
  1385
also ref manual for further ML interfaces;
wenzelm
parents: 12253
diff changeset
  1386
wenzelm
parents: 12253
diff changeset
  1387
* Pure/axclass: removed obsolete ML interface
wenzelm
parents: 12253
diff changeset
  1388
goal_subclass/goal_arity;
wenzelm
parents: 12253
diff changeset
  1389
wenzelm
parents: 12253
diff changeset
  1390
* Pure/syntax: new token syntax "num" for plain numerals (without "#"
wenzelm
parents: 12253
diff changeset
  1391
of "xnum"); potential INCOMPATIBILITY, since -0, -1 etc. are now
wenzelm
parents: 12253
diff changeset
  1392
separate tokens, so expressions involving minus need to be spaced
wenzelm
parents: 12253
diff changeset
  1393
properly;
wenzelm
parents: 12253
diff changeset
  1394
12312
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
  1395
* 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
  1396
rather than "infixl" or "infixr";
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
  1397
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
  1398
* 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
  1399
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
  1400
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
  1401
type variable);
12280
wenzelm
parents: 12253
diff changeset
  1402
wenzelm
parents: 12253
diff changeset
  1403
* Pure/syntax: print modes "type_brackets" and "no_type_brackets"
wenzelm
parents: 12253
diff changeset
  1404
control output of nested => (types); the default behavior is
wenzelm
parents: 12253
diff changeset
  1405
"type_brackets";
wenzelm
parents: 12253
diff changeset
  1406
wenzelm
parents: 12253
diff changeset
  1407
* Pure/syntax: builtin parse translation for "_constify" turns valued
11817
wenzelm
parents: 11814
diff changeset
  1408
tokens into AST constants;
11474
wenzelm
parents: 11437
diff changeset
  1409
12280
wenzelm
parents: 12253
diff changeset
  1410
* Pure/syntax: prefer later declarations of translations and print
wenzelm
parents: 12253
diff changeset
  1411
translation functions; potential INCOMPATIBILITY: need to reverse
wenzelm
parents: 12253
diff changeset
  1412
multiple declarations for same syntax element constant;
wenzelm
parents: 12253
diff changeset
  1413
12832
c31b44286a8a * Pure/show_hyps reset by default (in accordance to existing Isar practice);
wenzelm
parents: 12777
diff changeset
  1414
* 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
  1415
practice);
c31b44286a8a * Pure/show_hyps reset by default (in accordance to existing Isar practice);
wenzelm
parents: 12777
diff changeset