NEWS
author wenzelm
Sat, 29 May 2004 14:54:58 +0200
changeset 14816 b77cebcd7e6e
parent 14795 b702848de41f
child 14854 61bdf2ae4dc5
permissions -rw-r--r--
* ML: all output via channels of writeln etc. passed through Output.output;
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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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* Pure: considerably improved version of 'constdefs' command.  Now
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  performs automatic type-inference of declared constants; additional
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  support for local structure declarations (cf. locales and HOL
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  records), see also isar-ref manual.  Potential INCOMPATIBILITY: need
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  to observe strictly sequential dependencies of definitions within a
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  single 'constdefs' section; moreover, the declared name needs to be
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  an identifier.  If all fails, consider to fall back on 'consts' and
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  'defs' separately.
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* Pure: improved indexed syntax and implicit structures.  First of
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  all, indexed syntax provides a notational device for subscripted
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  application, using the new syntax \<^bsub>term\<^esub> for arbitrary
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  expressions.  Secondly, in a local context with structure
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  declarations, number indexes \<^sub>n or the empty index (default
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  number 1) refer to a certain fixed variable implicitly; option
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  show_structs controls printing of implicit structures.  Typical
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  applications of these concepts involve record types and locales.
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* Pure: clear separation of logical types and nonterminals, where the
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  latter may only occur in 'syntax' specifications or type
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  abbreviations.  Before that distinction was only partially
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  implemented via type class "logic" vs. "{}".  Potential
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  INCOMPATIBILITY in rare cases of improper use of 'types'/'consts'
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  instead of 'nonterminals'/'syntax'.  Some very exotic syntax
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  specifications may require further adaption (e.g. Cube/Base.thy).
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* Pure/Syntax: inner syntax includes (*(*nested*) comments*).
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* Pure/Syntax: pretty pinter now supports unbreakable blocks,
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  specified in mixfix annotations as "(00...)".
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* Pure/Syntax: 'advanced' translation functions (parse_translation
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  etc.) may depend on the signature of the theory context being
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  presently used for parsing/printing, see also isar-ref manual.
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* Pure: tuned internal renaming of symbolic identifiers -- attach
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  primes instead of base 26 numbers.
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* ML: all output via channels of writeln/warning/error etc. is now
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  passed through Output.output.  This gives interface builders a
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  chance to adapt text encodings in arbitrary manners (say as XML
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  entities); see the hook provided by Output.add_mode.  On the other
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  hand, results of Pretty.string_of/str_of (including string_of_term,
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  string_of_thm etc.) are still 'raw' (containing funny \<^raw...>
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  symbols), which requires separate application of Output.output
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  whenever strings are *not* passed on to writeln/warning/error etc.
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*** HOL ***
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* HOL/record: reimplementation of records. Improved scalability for
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  records with many fields, avoiding performance problems for type
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  inference. Records are no longer composed of nested field types, but
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  of nested extension types. Therefore the record type only grows
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  linear in the number of extensions and not in the number of fields.
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  The top-level (users) view on records is preserved.  Potential
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  INCOMPATIBILITY only in strange cases, where the theory depends on
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  the old record representation. The type generated for a record is
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  called <record_name>_ext_type.
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* Simplifier: "record_upd_simproc" for simplification of multiple
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  record updates enabled by default.  INCOMPATIBILITY: old proofs
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  break occasionally, since simplification is more powerful by
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  default.
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*** HOLCF ***
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* HOLCF: discontinued special version of 'constdefs' (which used to
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  support continuous functions) in favor of the general Pure one with
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  full type-inference.
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New in Isabelle2004 (April 2004)
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--------------------------------
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*** General ***
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* Provers/order.ML:  new efficient reasoner for partial and linear orders.
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  Replaces linorder.ML.
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* Pure: Greek letters (except small lambda, \<lambda>), as well as Gothic
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  (\<aa>...\<zz>\<AA>...\<ZZ>), calligraphic (\<A>...\<Z>), and Euler
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  (\<a>...\<z>), are now considered normal letters, and can therefore
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  be used anywhere where an ASCII letter (a...zA...Z) has until
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  now. COMPATIBILITY: This obviously changes the parsing of some
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  terms, especially where a symbol has been used as a binder, say
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  '\<Pi>x. ...', which is now a type error since \<Pi>x will be parsed
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  as an identifier.  Fix it by inserting a space around former
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  symbols.  Call 'isatool fixgreek' to try to fix parsing errors in
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  existing theory and ML files.
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* Pure: Macintosh and Windows line-breaks are now allowed in theory files.
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* Pure: single letter sub/superscripts (\<^isub> and \<^isup>) are now
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  allowed in identifiers. Similar to Greek letters \<^isub> is now considered
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  a normal (but invisible) letter. For multiple letter subscripts repeat
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  \<^isub> like this: x\<^isub>1\<^isub>2.
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* Pure: There are now sub-/superscripts that can span more than one
14f29eb097a3 \<^bsub> .. \<^esub>
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  character. Text between \<^bsub> and \<^esub> is set in subscript in
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  ProofGeneral and LaTeX, text between \<^bsup> and \<^esup> in
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  superscript. The new control characters are not identifier parts.
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* Pure: Control-symbols of the form \<^raw:...> will literally print the
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  content of "..." to the latex file instead of \isacntrl... . The "..."
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  may consist of any printable characters excluding the end bracket >.
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* Pure: Using new Isar command "finalconsts" (or the ML functions
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  Theory.add_finals or Theory.add_finals_i) it is now possible to
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  declare constants "final", which prevents their being given a definition
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  later.  It is useful for constants whose behaviour is fixed axiomatically
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  rather than definitionally, such as the meta-logic connectives.
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* Pure: 'instance' now handles general arities with general sorts
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  (i.e. intersections of classes),
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* Presentation: generated HTML now uses a CSS style sheet to make layout
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  (somewhat) independent of content. It is copied from lib/html/isabelle.css.
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  It can be changed to alter the colors/layout of generated pages.
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*** Isar ***
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* Tactic emulation methods rule_tac, erule_tac, drule_tac, frule_tac,
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  cut_tac, subgoal_tac and thin_tac:
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  - Now understand static (Isar) contexts.  As a consequence, users of Isar
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    locales are no longer forced to write Isar proof scripts.
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    For details see Isar Reference Manual, paragraph 4.3.2: Further tactic
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    emulations.
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  - INCOMPATIBILITY: names of variables to be instantiated may no
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    longer be enclosed in quotes.  Instead, precede variable name with `?'.
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    This is consistent with the instantiation attribute "where".
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* Attributes "where" and "of":
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  - Now take type variables of instantiated theorem into account when reading
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    the instantiation string.  This fixes a bug that caused instantiated
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    theorems to have too special types in some circumstances.
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  - "where" permits explicit instantiations of type variables.
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* Calculation commands "moreover" and "also" no longer interfere with
c5078f6c99a9 * Calculation commands "moreover" and "also" no longer interfere with
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  current facts ("this"), admitting arbitrary combinations with "then"
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  and derived forms.
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* Locales:
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  - Goal statements involving the context element "includes" no longer
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    generate theorems with internal delta predicates (those ending on
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    "_axioms") in the premise.
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    Resolve particular premise with <locale>.intro to obtain old form.
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  - Fixed bug in type inference ("unify_frozen") that prevented mix of target
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    specification and "includes" elements in goal statement.
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  - Rule sets <locale>.intro and <locale>.axioms no longer declared as
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    [intro?] and [elim?] (respectively) by default.
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  - Experimental command for instantiation of locales in proof contexts:
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        instantiate <label>[<attrs>]: <loc>
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    Instantiates locale <loc> and adds all its theorems to the current context
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    taking into account their attributes.  Label and attrs are optional
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    modifiers, like in theorem declarations.  If present, names of
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    instantiated theorems are qualified with <label>, and the attributes
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    <attrs> are applied after any attributes these theorems might have already.
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      If the locale has assumptions, a chained fact of the form
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    "<loc> t1 ... tn" is expected from which instantiations of the parameters
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    are derived.  The command does not support old-style locales declared
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    with "locale (open)".
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      A few (very simple) examples can be found in FOL/ex/LocaleInst.thy.
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dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
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* HOL: Tactic emulation methods induct_tac and case_tac understand static
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  (Isar) contexts.
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*** HOL ***
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* Proof import: new image HOL4 contains the imported library from
9b3397a848c3 add HOL4
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  the HOL4 system with about 2500 theorems. It is imported by
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  replaying proof terms produced by HOL4 in Isabelle. The HOL4 image
9b3397a848c3 add HOL4
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  can be used like any other Isabelle image.  See
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  HOL/Import/HOL/README for more information.
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14398
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* Simplifier:
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  - Much improved handling of linear and partial orders.
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    Reasoners for linear and partial orders are set up for type classes
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    "linorder" and "order" respectively, and are added to the default simpset
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    as solvers.  This means that the simplifier can build transitivity chains
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    to solve goals from the assumptions.
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  - INCOMPATIBILITY: old proofs break occasionally.  Typically, applications
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    of blast or auto after simplification become unnecessary because the goal
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    is solved by simplification already.
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* Numerics: new theory Ring_and_Field contains over 250 basic numerical laws,
14389
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    all proved in axiomatic type classes for semirings, rings and fields.
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* Numerics:
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  - Numeric types (nat, int, and in HOL-Complex rat, real, complex, etc.) are
14731
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    now formalized using the Ring_and_Field theory mentioned above.
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  - INCOMPATIBILITY: simplification and arithmetic behaves somewhat differently
paulson
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    than before, because now they are set up once in a generic manner.
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  - INCOMPATIBILITY: many type-specific arithmetic laws have gone.
14480
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    Look for the general versions in Ring_and_Field (and Power if they concern
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    exponentiation).
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* Type "rat" of the rational numbers is now available in HOL-Complex.
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14255
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* Records:
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  - Record types are now by default printed with their type abbreviation
e6e3e3f0deed Records:
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    instead of the list of all field types. This can be configured via
e6e3e3f0deed Records:
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    the reference "print_record_type_abbr".
14731
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  - Simproc "record_upd_simproc" for simplification of multiple updates added
14255
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    (not enabled by default).
14427
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  - Simproc "record_ex_sel_eq_simproc" to simplify EX x. sel r = x resp.
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    EX x. x = sel r to True (not enabled by default).
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  - Tactic "record_split_simp_tac" to split and simplify records added.
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* 'specification' command added, allowing for definition by
14224
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  specification.  There is also an 'ax_specification' command that
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  introduces the new constants axiomatically.
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* arith(_tac) is now able to generate counterexamples for reals as well.
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* HOL-Algebra: new locale "ring" for non-commutative rings.
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14243
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* HOL-ex: InductiveInvariant_examples illustrates advanced recursive function
14610
9c2e31e483b2 added HOL-Matrix, added HOL/Matrix/ROOT.ML
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  definitions, thanks to Sava Krsti\'{c} and John Matthews.
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* HOL-Matrix: a first theory for matrices in HOL with an application of
14610
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  matrix theory to linear programming.
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* Unions and Intersections:
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  The x-symbol output syntax of UN and INT has been changed
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  from "\<Union>x \<in> A. B" to "\<Union\<^bsub>x \<in> A\<^esub> B"
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  i.e. the index formulae has become a subscript, like in normal math.
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  Similarly for "\<Union>x. B", and for \<Inter> instead of \<Union>.
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  The subscript version is also accepted as input syntax.
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* Unions and Intersections over Intervals:
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  There is new short syntax "UN i<=n. A" for "UN i:{0..n}. A". There is
5670fc027a3b Pure: nested comments in inner syntax;
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  also an x-symbol version with subscripts "\<Union>\<^bsub>i <= n\<^esub>. A"
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  like in normal math, and corresponding versions for < and for intersection.
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* ML: the legacy theory structures Int and List have been removed. They had
477380c74c1d removal of the legacy ML structure List
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  conflicted with ML Basis Library structures having the same names.
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* 'refute' command added to search for (finite) countermodels.  Only works
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  for a fragment of HOL.  The installation of an external SAT solver is
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  highly recommended.  See "HOL/Refute.thy" for details.
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14602
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* 'quickcheck' command: Allows to find counterexamples by evaluating
e06ded775eca Added entry for quickcheck command.
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  formulae under an assignment of free variables to random values.
e06ded775eca Added entry for quickcheck command.
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  In contrast to 'refute', it can deal with inductive datatypes,
e06ded775eca Added entry for quickcheck command.
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  but cannot handle quantifiers. See "HOL/ex/Quickcheck_Examples.thy"
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  for examples.
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*** HOLCF ***
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* Streams now come with concatenation and are part of the HOLCF image
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14572
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New in Isabelle2003 (May 2003)
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------------------------------
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*** General ***
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* Provers/simplifier:
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  - Completely reimplemented method simp (ML: Asm_full_simp_tac):
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    Assumptions are now subject to complete mutual simplification,
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    not just from left to right. The simplifier now preserves
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    the order of assumptions.
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    Potential INCOMPATIBILITY:
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    -- simp sometimes diverges where the old version did
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       not, e.g. invoking simp on the goal
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        [| P (f x); y = x; f x = f y |] ==> Q
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       now gives rise to the infinite reduction sequence
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        P(f x) --(f x = f y)--> P(f y) --(y = x)--> P(f x) --(f x = f y)--> ...
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       Using "simp (asm_lr)" (ML: Asm_lr_simp_tac) instead often solves this
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       kind of problem.
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    -- Tactics combining classical reasoner and simplification (such as auto)
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       are also affected by this change, because many of them rely on
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       simp. They may sometimes diverge as well or yield a different numbers
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       of subgoals. Try to use e.g. force, fastsimp, or safe instead of auto
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       in case of problems. Sometimes subsequent calls to the classical
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       reasoner will fail because a preceeding call to the simplifier too
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       eagerly simplified the goal, e.g. deleted redundant premises.
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  - The simplifier trace now shows the names of the applied rewrite rules
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  - You can limit the number of recursive invocations of the simplifier
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    during conditional rewriting (where the simplifie tries to solve the
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    conditions before applying the rewrite rule):
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    ML "simp_depth_limit := n"
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    where n is an integer. Thus you can force termination where previously
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    the simplifier would diverge.
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  - Accepts free variables as head terms in congruence rules.  Useful in Isar.
13829
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nipkow
parents: 13824
diff changeset
   312
13938
b033b53d0c1e Simplifier: congruence rule update.
ballarin
parents: 13899
diff changeset
   313
  - No longer aborts on failed congruence proof.  Instead, the
b033b53d0c1e Simplifier: congruence rule update.
ballarin
parents: 13899
diff changeset
   314
    congruence is ignored.
b033b53d0c1e Simplifier: congruence rule update.
ballarin
parents: 13899
diff changeset
   315
14008
f843528b9f3c Program extraction framework.
berghofe
parents: 13995
diff changeset
   316
* Pure: New generic framework for extracting programs from constructive
f843528b9f3c Program extraction framework.
berghofe
parents: 13995
diff changeset
   317
  proofs. See HOL/Extraction.thy for an example instantiation, as well
f843528b9f3c Program extraction framework.
berghofe
parents: 13995
diff changeset
   318
  as HOL/Extraction for some case studies.
f843528b9f3c Program extraction framework.
berghofe
parents: 13995
diff changeset
   319
13868
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   320
* Pure: The main goal of the proof state is no longer shown by default, only
01b516b64233 *** empty log message ***
nipkow
parents: 13835
diff changeset
   321
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
   322
   PG menu: Isabelle/Isar -> Settings -> Show Main Goal
13815
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   323
(ML: Proof.show_main_goal).
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   324
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   325
* Pure: You can find all matching introduction rules for subgoal 1, i.e. all
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   326
rules whose conclusion matches subgoal 1:
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   327
      PG menu: Isabelle/Isar -> Show me -> matching rules
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   328
The rules are ordered by how closely they match the subgoal.
0832792725db *** empty log message ***
nipkow
parents: 13781
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   329
In particular, rules that solve a subgoal outright are displayed first
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   330
(or rather last, the way they are printed).
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   331
(ML: ProofGeneral.print_intros())
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   332
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   333
* Pure: New flag trace_unify_fail causes unification to print
13781
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   334
diagnostic information (PG: in trace buffer) when it fails. This is
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   335
useful for figuring out why single step proofs like rule, erule or
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   336
assumption failed.
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   337
13815
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nipkow
parents: 13781
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   338
* Pure: Locale specifications now produce predicate definitions
13410
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   339
according to the body of text (covering assumptions modulo local
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   340
definitions); predicate "loc_axioms" covers newly introduced text,
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   341
while "loc" is cumulative wrt. all included locale expressions; the
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   342
latter view is presented only on export into the global theory
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   343
context; potential INCOMPATIBILITY, use "(open)" option to fall back
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   344
on the old view without predicates;
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   345
13459
83f41b047a39 * Pure: predefined locales "var" and "struct" are useful for sharing
wenzelm
parents: 13443
diff changeset
   346
* 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
   347
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
   348
``var x + var y + struct M'' as import;
83f41b047a39 * Pure: predefined locales "var" and "struct" are useful for sharing
wenzelm
parents: 13443
diff changeset
   349
13463
07747943c626 * Provers: Simplifier.simproc(_i) now provide sane interface for
wenzelm
parents: 13459
diff changeset
   350
* 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
   351
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
   352
include local facts of proof configuration (also covers active
13541
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   353
locales), cover fixed variables in index; may use "_" in term
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   354
specification; an optional limit for the number of printed facts may
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   355
be given (the default is 40);
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   356
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   357
* Pure: disallow duplicate fact bindings within new-style theory files
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   358
(batch-mode only);
13540
aede0306e214 * Pure: disallow duplicate fact bindings within new-style theory files;
wenzelm
parents: 13522
diff changeset
   359
13463
07747943c626 * Provers: Simplifier.simproc(_i) now provide sane interface for
wenzelm
parents: 13459
diff changeset
   360
* Provers: improved induct method: assumptions introduced by case
07747943c626 * Provers: Simplifier.simproc(_i) now provide sane interface for
wenzelm
parents: 13459
diff changeset
   361
"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
   362
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
   363
13550
5a176b8dda84 removal of blast.overloaded
paulson
parents: 13549
diff changeset
   364
* Provers: the function blast.overloaded has been removed: all constants
5a176b8dda84 removal of blast.overloaded
paulson
parents: 13549
diff changeset
   365
are regarded as potentially overloaded, which improves robustness in exchange
5a176b8dda84 removal of blast.overloaded
paulson
parents: 13549
diff changeset
   366
for slight decrease in efficiency;
5a176b8dda84 removal of blast.overloaded
paulson
parents: 13549
diff changeset
   367
13781
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nipkow
parents: 13745
diff changeset
   368
* Provers/linorder: New generic prover for transitivity reasoning over
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   369
linear orders.  Note: this prover is not efficient!
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   370
13522
934fffeb6f38 * Isar: preview of problems to finish 'show' now produce an error
wenzelm
parents: 13518
diff changeset
   371
* 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
   372
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
   373
13280
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents: 13190
diff changeset
   374
13158
8e86582a90d1 *** empty log message ***
nipkow
parents: 13042
diff changeset
   375
*** HOL ***
8e86582a90d1 *** empty log message ***
nipkow
parents: 13042
diff changeset
   376
13899
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   377
* arith(_tac)
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   378
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   379
 - Produces a counter example if it cannot prove a goal.
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   380
   Note that the counter example may be spurious if the goal is not a formula
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   381
   of quantifier-free linear arithmetic.
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   382
   In ProofGeneral the counter example appears in the trace buffer.
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   383
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   384
 - 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
   385
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   386
 - Calls full Presburger arithmetic (by Amine Chaieb) if quantifier-free
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   387
   linear arithmetic fails. This takes account of quantifiers and divisibility.
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   388
   Presburger arithmetic can also be called explicitly via presburger(_tac).
13899
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   389
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   390
* simp's arithmetic capabilities have been enhanced a bit: it now
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   391
takes ~= in premises into account (by performing a case split);
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   392
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   393
* 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
   394
are distributed over a sum of terms;
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   395
13735
7de9342aca7a HOL-Algebra partially ported to Isar.
ballarin
parents: 13648
diff changeset
   396
* New tactic "trans_tac" and method "trans" instantiate
7de9342aca7a HOL-Algebra partially ported to Isar.
ballarin
parents: 13648
diff changeset
   397
Provers/linorder.ML for axclasses "order" and "linorder" (predicates
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   398
"<=", "<" and "=").
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   399
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   400
* function INCOMPATIBILITIES: Pi-sets have been redefined and moved from main
13587
659813a3f879 GroupTheory and FuncSet
paulson
parents: 13570
diff changeset
   401
HOL to Library/FuncSet; constant "Fun.op o" is now called "Fun.comp";
659813a3f879 GroupTheory and FuncSet
paulson
parents: 13570
diff changeset
   402
13443
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   403
* 'typedef' command has new option "open" to suppress the set
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   404
definition;
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   405
13522
934fffeb6f38 * Isar: preview of problems to finish 'show' now produce an error
wenzelm
parents: 13518
diff changeset
   406
* 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
   407
Finite_Set);
13492
6aae8eb39a18 *** empty log message ***
nipkow
parents: 13478
diff changeset
   408
13443
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   409
* attribute [symmetric] now works for relations as well; it turns
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   410
(x,y) : R^-1 into (y,x) : R, and vice versa;
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   411
13613
531f1f524848 *** empty log message ***
nipkow
parents: 13587
diff changeset
   412
* induct over a !!-quantified statement (say !!x1..xn):
531f1f524848 *** empty log message ***
nipkow
parents: 13587
diff changeset
   413
  each "case" automatically performs "fix x1 .. xn" with exactly those names.
531f1f524848 *** empty log message ***
nipkow
parents: 13587
diff changeset
   414
13899
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   415
* Map: `empty' is no longer a constant but a syntactic abbreviation for
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   416
%x. None. Warning: empty_def now refers to the previously hidden definition
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   417
of the empty set.
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   418
14018
3ef6c509f29c Improved entry on Algebra.
ballarin
parents: 14011
diff changeset
   419
* Algebra: formalization of classical algebra.  Intended as base for
3ef6c509f29c Improved entry on Algebra.
ballarin
parents: 14011
diff changeset
   420
any algebraic development in Isabelle.  Currently covers group theory
3ef6c509f29c Improved entry on Algebra.
ballarin
parents: 14011
diff changeset
   421
(up to Sylow's theorem) and ring theory (Universal Property of
3ef6c509f29c Improved entry on Algebra.
ballarin
parents: 14011
diff changeset
   422
Univariate Polynomials).  Contributions welcome;
13960
70f9158b6695 Complex, etc
paulson
parents: 13954
diff changeset
   423
70f9158b6695 Complex, etc
paulson
parents: 13954
diff changeset
   424
* GroupTheory: deleted, since its material has been moved to Algebra;
70f9158b6695 Complex, etc
paulson
parents: 13954
diff changeset
   425
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   426
* Complex: new directory of the complex numbers with numeric constants,
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   427
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
   428
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
   429
2160abf7cfe7 removal of the image HOL-Real and merging of HOL-Real-ex with HOL-Complex-ex
paulson
parents: 13960
diff changeset
   430
* 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
   431
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   432
* 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
   433
Fleuriot);
13960
70f9158b6695 Complex, etc
paulson
parents: 13954
diff changeset
   434
13549
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   435
* Real/HahnBanach: updated and adapted to locales;
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   436
13995
ab988a7a8a3b NEWS updated for HOL-Algebra.
ballarin
parents: 13966
diff changeset
   437
* NumberTheory: added Gauss's law of quadratic reciprocity (by Avigad,
ab988a7a8a3b NEWS updated for HOL-Algebra.
ballarin
parents: 13966
diff changeset
   438
Gray and Kramer);
13872
601514e63534 Gauss, UNITY, ZF
paulson
parents: 13868
diff changeset
   439
601514e63534 Gauss, UNITY, ZF
paulson
parents: 13868
diff changeset
   440
* UNITY: added the Meier-Sanders theory of progress sets;
601514e63534 Gauss, UNITY, ZF
paulson
parents: 13868
diff changeset
   441
14011
5fa103f5618c MicroJava LBV
kleing
parents: 14010
diff changeset
   442
* MicroJava: bytecode verifier and lightweight bytecode verifier
5fa103f5618c MicroJava LBV
kleing
parents: 14010
diff changeset
   443
as abstract algorithms, instantiated to the JVM;
5fa103f5618c MicroJava LBV
kleing
parents: 14010
diff changeset
   444
14010
schirmer
parents: 14008
diff changeset
   445
* Bali: Java source language formalization. Type system, operational
schirmer
parents: 14008
diff changeset
   446
semantics, axiomatic semantics. Supported language features:
schirmer
parents: 14008
diff changeset
   447
classes, interfaces, objects,virtual methods, static methods,
schirmer
parents: 14008
diff changeset
   448
static/instance fields, arrays, access modifiers, definite
schirmer
parents: 14008
diff changeset
   449
assignment, exceptions.
13549
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   450
14011
5fa103f5618c MicroJava LBV
kleing
parents: 14010
diff changeset
   451
13549
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   452
*** ZF ***
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   453
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   454
* ZF/Constructible: consistency proof for AC (Gödel's constructible
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   455
universe, etc.);
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   456
13872
601514e63534 Gauss, UNITY, ZF
paulson
parents: 13868
diff changeset
   457
* Main ZF: virtually all theories converted to new-style format;
13518
a0749ce05100 *** empty log message ***
nipkow
parents: 13500
diff changeset
   458
13280
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents: 13190
diff changeset
   459
13478
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   460
*** ML ***
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   461
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   462
* Pure: Tactic.prove provides sane interface for internal proofs;
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   463
omits the infamous "standard" operation, so this is more appropriate
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   464
than prove_goalw_cterm in many situations (e.g. in simprocs);
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   465
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   466
* Pure: improved error reporting of simprocs;
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   467
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   468
* Provers: Simplifier.simproc(_i) provides sane interface for setting
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   469
up simprocs;
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   470
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   471
13953
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   472
*** Document preparation ***
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   473
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   474
* uses \par instead of \\ for line breaks in theory text. This may
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   475
shift some page breaks in large documents. To get the old behaviour
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   476
use \renewcommand{\isanewline}{\mbox{}\\\mbox{}} in root.tex.
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   477
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   478
* minimized dependencies of isabelle.sty and isabellesym.sty on
13953
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   479
other packages
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   480
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   481
* \<euro> now needs package babel/greek instead of marvosym (which
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   482
broke \Rightarrow)
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   483
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   484
* normal size for \<zero>...\<nine> (uses \mathbf instead of
13954
2e989faba65a fixed \<0>..\<9> (-> \<zero>..\<nine>)
kleing
parents: 13953
diff changeset
   485
textcomp package)
13953
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   486
13280
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents: 13190
diff changeset
   487
14572
wenzelm
parents: 14561
diff changeset
   488
12984
6071200efbf6 fixed date;
wenzelm
parents: 12964
diff changeset
   489
New in Isabelle2002 (March 2002)
6071200efbf6 fixed date;
wenzelm
parents: 12964
diff changeset
   490
--------------------------------
11474
wenzelm
parents: 11437
diff changeset
   491
11572
wenzelm
parents: 11551
diff changeset
   492
*** Document preparation ***
wenzelm
parents: 11551
diff changeset
   493
11842
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   494
* greatly simplified document preparation setup, including more
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   495
graceful interpretation of isatool usedir -i/-d/-D options, and more
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   496
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
   497
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
   498
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
   499
"isatool usedir -D output HOL Test && isatool document Test/output";
11842
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   500
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   501
* theory dependency graph may now be incorporated into documents;
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   502
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
   503
with \includegraphics of LaTeX;
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   504
11864
371ce685b0ec * proper spacing of consecutive markup elements, especially text
wenzelm
parents: 11842
diff changeset
   505
* proper spacing of consecutive markup elements, especially text
371ce685b0ec * proper spacing of consecutive markup elements, especially text
wenzelm
parents: 11842
diff changeset
   506
blocks after section headings;
371ce685b0ec * proper spacing of consecutive markup elements, especially text
wenzelm
parents: 11842
diff changeset
   507
11572
wenzelm
parents: 11551
diff changeset
   508
* support bold style (for single symbols only), input syntax is like
wenzelm
parents: 11551
diff changeset
   509
this: "\<^bold>\<alpha>" or "\<^bold>A";
wenzelm
parents: 11551
diff changeset
   510
11814
wenzelm
parents: 11802
diff changeset
   511
* \<bullet> is now output as bold \cdot by default, which looks much
11572
wenzelm
parents: 11551
diff changeset
   512
better in printed text;
wenzelm
parents: 11551
diff changeset
   513
11712
deb8cac87063 * added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
wenzelm
parents: 11702
diff changeset
   514
* added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
deb8cac87063 * added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
wenzelm
parents: 11702
diff changeset
   515
note that these symbols are currently unavailable in Proof General /
12769
wenzelm
parents: 12754
diff changeset
   516
X-Symbol; new symbols \<zero>, \<one>, ..., \<nine>, and \<euro>;
12690
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
   517
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
   518
* isatool latex no longer depends on changed TEXINPUTS, instead
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
   519
isatool document copies the Isabelle style files to the target
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
   520
location;
11712
deb8cac87063 * added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
wenzelm
parents: 11702
diff changeset
   521
11572
wenzelm
parents: 11551
diff changeset
   522
11633
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   523
*** Isar ***
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   524
12312
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   525
* Pure/Provers: improved proof by cases and induction;
12280
wenzelm
parents: 12253
diff changeset
   526
  - 'case' command admits impromptu naming of parameters (such as
wenzelm
parents: 12253
diff changeset
   527
    "case (Suc n)");
wenzelm
parents: 12253
diff changeset
   528
  - 'induct' method divinates rule instantiation from the inductive
wenzelm
parents: 12253
diff changeset
   529
    claim; no longer requires excessive ?P bindings for proper
wenzelm
parents: 12253
diff changeset
   530
    instantiation of cases;
wenzelm
parents: 12253
diff changeset
   531
  - 'induct' method properly enumerates all possibilities of set/type
wenzelm
parents: 12253
diff changeset
   532
    rules; as a consequence facts may be also passed through *type*
wenzelm
parents: 12253
diff changeset
   533
    rules without further ado;
wenzelm
parents: 12253
diff changeset
   534
  - 'induct' method now derives symbolic cases from the *rulified*
wenzelm
parents: 12253
diff changeset
   535
    rule (before it used to rulify cases stemming from the internal
wenzelm
parents: 12253
diff changeset
   536
    atomized version); this means that the context of a non-atomic
wenzelm
parents: 12253
diff changeset
   537
    statement becomes is included in the hypothesis, avoiding the
wenzelm
parents: 12253
diff changeset
   538
    slightly cumbersome show "PROP ?case" form;
wenzelm
parents: 12253
diff changeset
   539
  - 'induct' may now use elim-style induction rules without chaining
wenzelm
parents: 12253
diff changeset
   540
    facts, using ``missing'' premises from the goal state; this allows
wenzelm
parents: 12253
diff changeset
   541
    rules stemming from inductive sets to be applied in unstructured
wenzelm
parents: 12253
diff changeset
   542
    scripts, while still benefitting from proper handling of non-atomic
wenzelm
parents: 12253
diff changeset
   543
    statements; NB: major inductive premises need to be put first, all
wenzelm
parents: 12253
diff changeset
   544
    the rest of the goal is passed through the induction;
wenzelm
parents: 12253
diff changeset
   545
  - 'induct' proper support for mutual induction involving non-atomic
wenzelm
parents: 12253
diff changeset
   546
    rule statements (uses the new concept of simultaneous goals, see
wenzelm
parents: 12253
diff changeset
   547
    below);
12853
de505273c971 Isar cases/induct: no backtracking;
wenzelm
parents: 12850
diff changeset
   548
  - append all possible rule selections, but only use the first
de505273c971 Isar cases/induct: no backtracking;
wenzelm
parents: 12850
diff changeset
   549
    success (no backtracking);
11995
4a622f5fb164 - 'induct' may now use elim-style induction rules without chaining
wenzelm
parents: 11986
diff changeset
   550
  - 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
   551
  - 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
   552
  - 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
   553
    General versions);
11995
4a622f5fb164 - 'induct' may now use elim-style induction rules without chaining
wenzelm
parents: 11986
diff changeset
   554
  - 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
   555
  - 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
   556
12163
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   557
* Pure: support multiple simultaneous goal statements, for example
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   558
"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
   559
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
   560
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
   561
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
   562
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
   563
fails:
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   564
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   565
  assume "A & B" then have A and B ..   (*".." fails*)
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   566
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   567
better use "obtain" in situations as above; alternative refer to
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   568
multi-step methods like 'auto', 'simp_all', 'blast+' etc.;
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   569
12078
4eb8061286e5 * Isar/Pure: proper integration with ``locales''; unlike the original
wenzelm
parents: 12034
diff changeset
   570
* Pure: proper integration with ``locales''; unlike the original
12210
2f510d8d8291 * ZF: new-style theory commands '(co)inductive', '(co)datatype',
wenzelm
parents: 12177
diff changeset
   571
version by Florian Kammüller, Isar locales package high-level proof
12078
4eb8061286e5 * Isar/Pure: proper integration with ``locales''; unlike the original
wenzelm
parents: 12034
diff changeset
   572
contexts rather than raw logical ones (e.g. we admit to include
12280
wenzelm
parents: 12253
diff changeset
   573
attributes everywhere); operations on locales include merge and
12964
wenzelm
parents: 12924
diff changeset
   574
rename; support for implicit arguments (``structures''); simultaneous
wenzelm
parents: 12924
diff changeset
   575
type-inference over imports and text; see also HOL/ex/Locales.thy for
wenzelm
parents: 12924
diff changeset
   576
some examples;
12078
4eb8061286e5 * Isar/Pure: proper integration with ``locales''; unlike the original
wenzelm
parents: 12034
diff changeset
   577
12707
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   578
* Pure: the following commands have been ``localized'', supporting a
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   579
target locale specification "(in name)": 'lemma', 'theorem',
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   580
'corollary', 'lemmas', 'theorems', 'declare'; the results will be
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   581
stored both within the locale and at the theory level (exported and
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   582
qualified by the locale name);
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   583
12964
wenzelm
parents: 12924
diff changeset
   584
* Pure: theory goals may now be specified in ``long'' form, with
wenzelm
parents: 12924
diff changeset
   585
ad-hoc contexts consisting of arbitrary locale elements. for example
wenzelm
parents: 12924
diff changeset
   586
``lemma foo: fixes x assumes "A x" shows "B x"'' (local syntax and
wenzelm
parents: 12924
diff changeset
   587
definitions may be given, too); the result is a meta-level rule with
wenzelm
parents: 12924
diff changeset
   588
the context elements being discharged in the obvious way;
wenzelm
parents: 12924
diff changeset
   589
wenzelm
parents: 12924
diff changeset
   590
* Pure: new proof command 'using' allows to augment currently used
wenzelm
parents: 12924
diff changeset
   591
facts after a goal statement ('using' is syntactically analogous to
wenzelm
parents: 12924
diff changeset
   592
'apply', but acts on the goal's facts only); this allows chained facts
wenzelm
parents: 12924
diff changeset
   593
to be separated into parts given before and after a claim, as in
wenzelm
parents: 12924
diff changeset
   594
``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
   595
11722
78cf55fd57c6 * Isar/Pure: fixed 'token_translation' command;
wenzelm
parents: 11712
diff changeset
   596
* Pure: renamed "antecedent" case to "rule_context";
78cf55fd57c6 * Isar/Pure: fixed 'token_translation' command;
wenzelm
parents: 11712
diff changeset
   597
12964
wenzelm
parents: 12924
diff changeset
   598
* Pure: new 'judgment' command records explicit information about the
wenzelm
parents: 12924
diff changeset
   599
object-logic embedding (used by several tools internally); no longer
wenzelm
parents: 12924
diff changeset
   600
use hard-wired "Trueprop";
wenzelm
parents: 12924
diff changeset
   601
11738
7c7a902a5c65 * Pure: added 'corollary' command;
wenzelm
parents: 11722
diff changeset
   602
* Pure: added 'corollary' command;
7c7a902a5c65 * Pure: added 'corollary' command;
wenzelm
parents: 11722
diff changeset
   603
11722
78cf55fd57c6 * Isar/Pure: fixed 'token_translation' command;
wenzelm
parents: 11712
diff changeset
   604
* Pure: fixed 'token_translation' command;
78cf55fd57c6 * Isar/Pure: fixed 'token_translation' command;
wenzelm
parents: 11712
diff changeset
   605
11899
e543b0f01a58 * Pure: removed obsolete 'exported' attribute;
wenzelm
parents: 11864
diff changeset
   606
* Pure: removed obsolete 'exported' attribute;
e543b0f01a58 * Pure: removed obsolete 'exported' attribute;
wenzelm
parents: 11864
diff changeset
   607
11933
wenzelm
parents: 11930
diff changeset
   608
* Pure: dummy pattern "_" in is/let is now automatically lifted over
wenzelm
parents: 11930
diff changeset
   609
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
   610
supersedes more cumbersome ... (is "ALL x. _ x --> ?C x");
e543b0f01a58 * Pure: removed obsolete 'exported' attribute;
wenzelm
parents: 11864
diff changeset
   611
11952
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
   612
* 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
   613
statements (atomic meta-level propositions); setup controlled via
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
   614
rewrite rules declarations of 'atomize' attribute; example
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
   615
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
   616
proof *scripts*;
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
   617
12106
4a8558dbb6a0 * Isar/Pure: emulation of instantiation tactics (rule_tac, cut_tac,
wenzelm
parents: 12078
diff changeset
   618
* 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
   619
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
   620
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
   621
especially important for locales);
4a8558dbb6a0 * Isar/Pure: emulation of instantiation tactics (rule_tac, cut_tac,
wenzelm
parents: 12078
diff changeset
   622
12312
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   623
* 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
   624
mode;
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   625
12405
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   626
* Pure/obtain: the formal conclusion "thesis", being marked as
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   627
``internal'', may no longer be reference directly in the text;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   628
potential INCOMPATIBILITY, may need to use "?thesis" in rare
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   629
situations;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   630
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   631
* Pure: generic 'sym' attribute which declares a rule both as pure
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   632
'elim?' and for the 'symmetric' operation;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   633
12877
b9635eb8a448 * Isar/Pure: marginal comments ``--'' may now occur just anywhere in the text;
wenzelm
parents: 12853
diff changeset
   634
* 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
   635
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
   636
discontinued;
b9635eb8a448 * Isar/Pure: marginal comments ``--'' may now occur just anywhere in the text;
wenzelm
parents: 12853
diff changeset
   637
13023
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
   638
* 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
   639
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
   640
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
   641
12364
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   642
* Pure/Provers/classical: simplified integration with pure rule
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   643
attributes and methods; the classical "intro?/elim?/dest?"
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   644
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
   645
includes classically swapped intros; "intro" and "elim" methods no
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   646
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
   647
AddXIs/AddXEs/AddXDs; all of this has some potential for
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   648
INCOMPATIBILITY;
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   649
12405
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   650
* Provers/classical: attribute 'swapped' produces classical inversions
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   651
of introduction rules;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   652
12364
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   653
* Provers/simplifier: 'simplified' attribute may refer to explicit
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   654
rules instead of full simplifier context; 'iff' attribute handles
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   655
conditional rules;
11936
fef099613354 * Provers: 'simplified' attribute may refer to explicit rules instead
wenzelm
parents: 11933
diff changeset
   656
11745
06cd8c3b5487 * HOL: 'typedef' now allows alternative names for Rep/Abs morphisms;
wenzelm
parents: 11738
diff changeset
   657
* 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
   658
11690
cb64368fb405 improved proof by cases and induction;
wenzelm
parents: 11663
diff changeset
   659
* HOL: 'recdef' now fails on unfinished automated proofs, use
11633
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   660
"(permissive)" option to recover old behavior;
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   661
11933
wenzelm
parents: 11930
diff changeset
   662
* HOL: 'inductive' no longer features separate (collective) attributes
wenzelm
parents: 11930
diff changeset
   663
for 'intros' (was found too confusing);
wenzelm
parents: 11930
diff changeset
   664
12405
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   665
* HOL: properly declared induction rules less_induct and
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   666
wf_induct_rule;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   667
11788
60054fee3c16 canonical 'cases'/'induct' rules for n-tuples (n=3..7)
kleing
parents: 11745
diff changeset
   668
11474
wenzelm
parents: 11437
diff changeset
   669
*** HOL ***
wenzelm
parents: 11437
diff changeset
   670
11702
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   671
* HOL: moved over to sane numeral syntax; the new policy is as
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   672
follows:
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   673
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   674
  - 0 and 1 are polymorphic constants, which are defined on any
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   675
  numeric type (nat, int, real etc.);
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   676
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   677
  - 2, 3, 4, ... and -1, -2, -3, ... are polymorphic numerals, based
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   678
  binary representation internally;
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   679
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   680
  - type nat has special constructor Suc, and generally prefers Suc 0
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   681
  over 1::nat and Suc (Suc 0) over 2::nat;
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   682
12364
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   683
This change may cause significant problems of INCOMPATIBILITY; here
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   684
are some hints on converting existing sources:
11702
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   685
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   686
  - due to the new "num" token, "-0" and "-1" etc. are now atomic
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   687
  entities, so expressions involving "-" (unary or binary minus) need
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   688
  to be spaced properly;
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   689
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   690
  - existing occurrences of "1" may need to be constraint "1::nat" or
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   691
  even replaced by Suc 0; similar for old "2";
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   692
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   693
  - replace "#nnn" by "nnn", and "#-nnn" by "-nnn";
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   694
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   695
  - remove all special provisions on numerals in proofs;
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   696
13042
wenzelm
parents: 13025
diff changeset
   697
* HOL: simp rules nat_number expand numerals on nat to Suc/0
12837
74ce01905e57 * HOL: nat_number_of;
wenzelm
parents: 12832
diff changeset
   698
representation (depends on bin_arith_simps in the default context);
74ce01905e57 * HOL: nat_number_of;
wenzelm
parents: 12832
diff changeset
   699
12736
80f10551fb59 * HOL: symbolic syntax for x^2 (numeral 2);
wenzelm
parents: 12734
diff changeset
   700
* HOL: symbolic syntax for x^2 (numeral 2);
80f10551fb59 * HOL: symbolic syntax for x^2 (numeral 2);
wenzelm
parents: 12734
diff changeset
   701
12335
db4d5f498742 * HOL: the class of all HOL types is now called "type" rather than
wenzelm
parents: 12312
diff changeset
   702
* 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
   703
"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
   704
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
   705
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
   706
"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
   707
12280
wenzelm
parents: 12253
diff changeset
   708
* HOL/record package improvements:
wenzelm
parents: 12253
diff changeset
   709
  - new derived operations "fields" to build a partial record section,
wenzelm
parents: 12253
diff changeset
   710
    "extend" to promote a fixed record to a record scheme, and
wenzelm
parents: 12253
diff changeset
   711
    "truncate" for the reverse; cf. theorems "xxx.defs", which are *not*
wenzelm
parents: 12253
diff changeset
   712
    declared as simp by default;
12587
3f3d2ffb5df5 HOL/record: shared operations ("more", "fields", etc.) now need to be
wenzelm
parents: 12564
diff changeset
   713
  - 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
   714
    qualified) --- potential INCOMPATIBILITY;
12280
wenzelm
parents: 12253
diff changeset
   715
  - removed "make_scheme" operations (use "make" with "extend") --
wenzelm
parents: 12253
diff changeset
   716
    INCOMPATIBILITY;
11937
2a2b1182a23b * HOL/record:
wenzelm
parents: 11936
diff changeset
   717
  - removed "more" class (simply use "term") -- INCOMPATIBILITY;
12253
1886dc96b7e9 * HOL/record: cases/induct for more parts;
wenzelm
parents: 12245
diff changeset
   718
  - provides cases/induct rules for use with corresponding Isar
1886dc96b7e9 * HOL/record: cases/induct for more parts;
wenzelm
parents: 12245
diff changeset
   719
    methods (for concrete records, record schemes, concrete more
12280
wenzelm
parents: 12253
diff changeset
   720
    parts, and schematic more parts -- in that order);
11930
1accec985349 * HOL/record:
wenzelm
parents: 11921
diff changeset
   721
  - internal definitions directly based on a light-weight abstract
1accec985349 * HOL/record:
wenzelm
parents: 11921
diff changeset
   722
    theory of product types over typedef rather than datatype;
1accec985349 * HOL/record:
wenzelm
parents: 11921
diff changeset
   723
13023
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
   724
* 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
   725
specifications; specific support for HOL constructs such as inductive
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
   726
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
   727
via 'generate_code' theory section;
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
   728
11933
wenzelm
parents: 11930
diff changeset
   729
* HOL: canonical cases/induct rules for n-tuples (n = 3..7);
wenzelm
parents: 11930
diff changeset
   730
13824
e4d8dea6dfc2 minor updates to pre-2002 release
paulson
parents: 13815
diff changeset
   731
* HOL: consolidated and renamed several theories.  In particular:
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   732
        Ord.thy has been absorbed into HOL.thy
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   733
        String.thy has been absorbed into List.thy
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   734
11802
1d5f5d2427d2 * HOL: concrete setsum syntax "\<Sum>i:A. b" == "setsum (%i. b) A"
wenzelm
parents: 11797
diff changeset
   735
* 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
   736
(beware of argument permutation!);
1d5f5d2427d2 * HOL: concrete setsum syntax "\<Sum>i:A. b" == "setsum (%i. b) A"
wenzelm
parents: 11797
diff changeset
   737
11657
03c4a5c08a79 *** empty log message ***
wenzelm
parents: 11633
diff changeset
   738
* HOL: linorder_less_split superseded by linorder_cases;
03c4a5c08a79 *** empty log message ***
wenzelm
parents: 11633
diff changeset
   739
12917
0fd3caa5d8b2 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12899
diff changeset
   740
* HOL/List: "nodups" renamed to "distinct";
12889
1de4f0b824a8 *** empty log message ***
nipkow
parents: 12877
diff changeset
   741
11633
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   742
* HOL: added "The" definite description operator; move Hilbert's "Eps"
13824
e4d8dea6dfc2 minor updates to pre-2002 release
paulson
parents: 13815
diff changeset
   743
to peripheral theory "Hilbert_Choice"; some INCOMPATIBILITIES:
e4d8dea6dfc2 minor updates to pre-2002 release
paulson
parents: 13815
diff changeset
   744
  - Ex_def has changed, now need to use some_eq_ex
11437
2338bce575ae HOL: added "The";
wenzelm
parents: 11397
diff changeset
   745
11572
wenzelm
parents: 11551
diff changeset
   746
* HOL: made split_all_tac safe; EXISTING PROOFS MAY FAIL OR LOOP, so
wenzelm
parents: 11551
diff changeset
   747
in this (rare) case use:
wenzelm
parents: 11551
diff changeset
   748
wenzelm
parents: 11551
diff changeset
   749
  delSWrapper "split_all_tac"
wenzelm
parents: 11551
diff changeset
   750
  addSbefore ("unsafe_split_all_tac", unsafe_split_all_tac)
wenzelm
parents: 11551
diff changeset
   751
wenzelm
parents: 11551
diff changeset
   752
* HOL: added safe wrapper "split_conv_tac" to claset; EXISTING PROOFS
11474
wenzelm
parents: 11437
diff changeset
   753
MAY FAIL;
11361
879e53d92f51 *** empty log message ***
nipkow
parents: 11314
diff changeset
   754
11572
wenzelm
parents: 11551
diff changeset
   755
* HOL: introduced f^n = f o ... o f; warning: due to the limits of
wenzelm
parents: 11551
diff changeset
   756
Isabelle's type classes, ^ on functions and relations has too general
wenzelm
parents: 11551
diff changeset
   757
a domain, namely ('a * 'b) set and 'a => 'b; this means that it may be
wenzelm
parents: 11551
diff changeset
   758
necessary to attach explicit type constraints;
11307
891fbd3f4881 *** empty log message ***
nipkow
parents: 11241
diff changeset
   759
12917
0fd3caa5d8b2 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12899
diff changeset
   760
* HOL/Relation: the prefix name of the infix "O" has been changed from
0fd3caa5d8b2 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12899
diff changeset
   761
"comp" to "rel_comp"; INCOMPATIBILITY: a few theorems have been
0fd3caa5d8b2 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12899
diff changeset
   762
renamed accordingly (eg "compI" -> "rel_compI").
12489
c92e38c3cbaa *** empty log message ***
nipkow
parents: 12472
diff changeset
   763
11487
95071c9e85a3 * HOL: syntax translations now work properly with numerals and records
wenzelm
parents: 11475
diff changeset
   764
* 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
   765
expressions;
11474
wenzelm
parents: 11437
diff changeset
   766
12457
cbfc53e45476 * HOL: bounded abstraction now uses syntax "%" / "\<lambda>" instead
wenzelm
parents: 12405
diff changeset
   767
* HOL: bounded abstraction now uses syntax "%" / "\<lambda>" instead
cbfc53e45476 * HOL: bounded abstraction now uses syntax "%" / "\<lambda>" instead
wenzelm
parents: 12405
diff changeset
   768
of "lam" -- INCOMPATIBILITY;
11474
wenzelm
parents: 11437
diff changeset
   769
11933
wenzelm
parents: 11930
diff changeset
   770
* HOL: got rid of some global declarations (potential INCOMPATIBILITY
wenzelm
parents: 11930
diff changeset
   771
for ML tools): const "()" renamed "Product_Type.Unity", type "unit"
wenzelm
parents: 11930
diff changeset
   772
renamed "Product_Type.unit";
11611
b0c69f4db64c HOL: eliminated global items;
wenzelm
parents: 11572
diff changeset
   773
12564
226873bffa3a *** empty log message ***
nipkow
parents: 12563
diff changeset
   774
* HOL: renamed rtrancl_into_rtrancl2 to converse_rtrancl_into_rtrancl
226873bffa3a *** empty log message ***
nipkow
parents: 12563
diff changeset
   775
12924
02eb40cde931 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12917
diff changeset
   776
* HOL: removed obsolete theorem "optionE" (use "option.exhaust", or
02eb40cde931 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12917
diff changeset
   777
the "cases" method);
02eb40cde931 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12917
diff changeset
   778
12597
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
   779
* HOL/GroupTheory: group theory examples including Sylow's theorem (by
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
   780
Florian Kammüller);
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
   781
12608
2df381faa787 * ZF/IMP: updated and converted to new-style theory format;
wenzelm
parents: 12597
diff changeset
   782
* 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
   783
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
   784
some explanations (by Gerwin Klein);
12597
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
   785
12734
c5f6d8259ecd HOL-Real/Complex_Numbers;
wenzelm
parents: 12728
diff changeset
   786
* HOL-Real: added Complex_Numbers (by Gertrud Bauer);
c5f6d8259ecd HOL-Real/Complex_Numbers;
wenzelm
parents: 12728
diff changeset
   787
12690
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
   788
* HOL-Hyperreal is now a logic image;
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
   789
11611
b0c69f4db64c HOL: eliminated global items;
wenzelm
parents: 11572
diff changeset
   790
12022
9c3377b133c0 HOLCF: proper rep_datatype lift (see theory Lift); use plain induct_tac
wenzelm
parents: 11995
diff changeset
   791
*** HOLCF ***
9c3377b133c0 HOLCF: proper rep_datatype lift (see theory Lift); use plain induct_tac
wenzelm
parents: 11995
diff changeset
   792
12622
wenzelm
parents: 12608
diff changeset
   793
* Isar: consts/constdefs supports mixfix syntax for continuous
wenzelm
parents: 12608
diff changeset
   794
operations;
wenzelm
parents: 12608
diff changeset
   795
wenzelm
parents: 12608
diff changeset
   796
* Isar: domain package adapted to new-style theory format, e.g. see
wenzelm
parents: 12608
diff changeset
   797
HOLCF/ex/Dnat.thy;
wenzelm
parents: 12608
diff changeset
   798
wenzelm
parents: 12608
diff changeset
   799
* theory Lift: proper use of rep_datatype lift instead of ML hacks --
12280
wenzelm
parents: 12253
diff changeset
   800
potential INCOMPATIBILITY; now use plain induct_tac instead of former
wenzelm
parents: 12253
diff changeset
   801
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
   802
12597
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
   803
* 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
   804
12022
9c3377b133c0 HOLCF: proper rep_datatype lift (see theory Lift); use plain induct_tac
wenzelm
parents: 11995
diff changeset
   805
11474
wenzelm
parents: 11437
diff changeset
   806
*** ZF ***
wenzelm
parents: 11437
diff changeset
   807
12622
wenzelm
parents: 12608
diff changeset
   808
* Isar: proper integration of logic-specific tools and packages,
wenzelm
parents: 12608
diff changeset
   809
including theory commands '(co)inductive', '(co)datatype',
wenzelm
parents: 12608
diff changeset
   810
'rep_datatype', 'inductive_cases', as well as methods 'ind_cases',
wenzelm
parents: 12608
diff changeset
   811
'induct_tac', 'case_tac', and 'typecheck' (with attribute 'TC');
wenzelm
parents: 12608
diff changeset
   812
wenzelm
parents: 12608
diff changeset
   813
* theory Main no longer includes AC; for the Axiom of Choice, base
wenzelm
parents: 12608
diff changeset
   814
your theory on Main_ZFC;
wenzelm
parents: 12608
diff changeset
   815
wenzelm
parents: 12608
diff changeset
   816
* the integer library now covers quotients and remainders, with many
wenzelm
parents: 12608
diff changeset
   817
laws relating division to addition, multiplication, etc.;
12563
3813bcab493d ZF/Main
paulson
parents: 12538
diff changeset
   818
12280
wenzelm
parents: 12253
diff changeset
   819
* ZF/UNITY: Chandy and Misra's UNITY is now available in ZF, giving a
wenzelm
parents: 12253
diff changeset
   820
typeless version of the formalism;
wenzelm
parents: 12253
diff changeset
   821
13025
wenzelm
parents: 13023
diff changeset
   822
* ZF/AC, Coind, IMP, Resid: updated and converted to new-style theory
wenzelm
parents: 13023
diff changeset
   823
format;
12608
2df381faa787 * ZF/IMP: updated and converted to new-style theory format;
wenzelm
parents: 12597
diff changeset
   824
12280
wenzelm
parents: 12253
diff changeset
   825
* 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
   826
including theory Multiset for multiset orderings; converted to
2df381faa787 * ZF/IMP: updated and converted to new-style theory format;
wenzelm
parents: 12597
diff changeset
   827
new-style theory format;
12177
b1c16d685a99 * ZF: new-style theory commands 'inductive', 'inductive_cases', and
wenzelm
parents: 12163
diff changeset
   828
13025
wenzelm
parents: 13023
diff changeset
   829
* ZF: many new theorems about lists, ordinals, etc.;
12850
paulson
parents: 12837
diff changeset
   830
11474
wenzelm
parents: 11437
diff changeset
   831
wenzelm
parents: 11437
diff changeset
   832
*** General ***
wenzelm
parents: 11437
diff changeset
   833
12280
wenzelm
parents: 12253
diff changeset
   834
* Pure/kernel: meta-level proof terms (by Stefan Berghofer); reference
wenzelm
parents: 12253
diff changeset
   835
variable proof controls level of detail: 0 = no proofs (only oracle
wenzelm
parents: 12253
diff changeset
   836
dependencies), 1 = lemma dependencies, 2 = compact proof terms; see
wenzelm
parents: 12253
diff changeset
   837
also ref manual for further ML interfaces;
wenzelm
parents: 12253
diff changeset
   838
wenzelm
parents: 12253
diff changeset
   839
* Pure/axclass: removed obsolete ML interface
wenzelm
parents: 12253
diff changeset
   840
goal_subclass/goal_arity;
wenzelm
parents: 12253
diff changeset
   841
wenzelm
parents: 12253
diff changeset
   842
* Pure/syntax: new token syntax "num" for plain numerals (without "#"
wenzelm
parents: 12253
diff changeset
   843
of "xnum"); potential INCOMPATIBILITY, since -0, -1 etc. are now
wenzelm
parents: 12253
diff changeset
   844
separate tokens, so expressions involving minus need to be spaced
wenzelm
parents: 12253
diff changeset
   845
properly;
wenzelm
parents: 12253
diff changeset
   846
12312
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   847
* 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
   848
rather than "infixl" or "infixr";
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   849
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   850
* 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
   851
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
   852
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
   853
type variable);
12280
wenzelm
parents: 12253
diff changeset
   854
wenzelm
parents: 12253
diff changeset
   855
* Pure/syntax: print modes "type_brackets" and "no_type_brackets"
wenzelm
parents: 12253
diff changeset
   856
control output of nested => (types); the default behavior is
wenzelm
parents: 12253
diff changeset
   857
"type_brackets";
wenzelm
parents: 12253
diff changeset
   858
wenzelm
parents: 12253
diff changeset
   859
* Pure/syntax: builtin parse translation for "_constify" turns valued
11817
wenzelm
parents: 11814
diff changeset
   860
tokens into AST constants;
11474
wenzelm
parents: 11437
diff changeset
   861
12280
wenzelm
parents: 12253
diff changeset
   862
* Pure/syntax: prefer later declarations of translations and print
wenzelm
parents: 12253
diff changeset
   863
translation functions; potential INCOMPATIBILITY: need to reverse
wenzelm
parents: 12253
diff changeset
   864
multiple declarations for same syntax element constant;
wenzelm
parents: 12253
diff changeset
   865
12832
c31b44286a8a * Pure/show_hyps reset by default (in accordance to existing Isar practice);
wenzelm
parents: 12777
diff changeset
   866
* 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
   867
practice);
c31b44286a8a * Pure/show_hyps reset by default (in accordance to existing Isar practice);
wenzelm
parents: 12777
diff changeset
   868
12280
wenzelm
parents: 12253
diff changeset
   869
* Provers/classical: renamed addaltern to addafter, addSaltern to
wenzelm
parents: 12253
diff changeset
   870
addSafter;
wenzelm
parents: 12253
diff changeset
   871
wenzelm
parents: 12253
diff changeset
   872
* Provers/clasimp: ``iff'' declarations now handle conditional rules
wenzelm
parents: 12253
diff changeset
   873
as well;
12253
1886dc96b7e9 * HOL/record: cases/induct for more parts;
wenzelm
parents: 12245
diff changeset
   874
12538
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
   875
* system: tested support for MacOS X; should be able to get Isabelle +
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
   876
Proof General to work in a plain Terminal after installing Poly/ML
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
   877
(e.g. from the Isabelle distribution area) and GNU bash alone
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
   878
(e.g. from http://www.apple.com); full X11, XEmacs and X-Symbol
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
   879
support requires further installations, e.g. from
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
   880
http://fink.sourceforge.net/);
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
   881
12280
wenzelm
parents: 12253
diff changeset
   882
* system: support Poly/ML 4.1.1 (able to manage larger heaps);
11551
8b5064d1c5c9 * system: support Poly/ML 4.1.1 (large heaps);
wenzelm
parents: 11549
diff changeset
   883
12753
3a62df7ae926 * system: reduced base memory usage by Poly/ML (approx. 20 MB instead
wenzelm
parents: 12736
diff changeset
   884
* system: reduced base memory usage by Poly/ML (approx. 20 MB instead
3a62df7ae926 * system: reduced base memory usage by Poly/ML (approx. 20 MB instead
wenzelm
parents: 12736
diff changeset
   885
of 40 MB), cf. ML_OPTIONS;
3a62df7ae926 * system: reduced base memory usage by Poly/ML (approx. 20 MB instead
wenzelm
parents: 12736
diff changeset
   886
11633
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   887
* system: Proof General keywords specification is now part of the
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   888
Isabelle distribution (see etc/isar-keywords.el);
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   889
12728
wenzelm
parents: 12724
diff changeset
   890
* system: support for persistent Proof General sessions (refrain from
wenzelm
parents: 12724
diff changeset
   891
outdating all loaded theories on startup); user may create writable
wenzelm
parents: 12724
diff changeset
   892
logic images like this: ``isabelle -q HOL Test'';
12597
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
   893
11551
8b5064d1c5c9 * system: support Poly/ML 4.1.1 (large heaps);
wenzelm
parents: 11549
diff changeset
   894
* system: smart selection of Isabelle process versus Isabelle
11572
wenzelm
parents: 11551
diff changeset
   895
interface, accommodates case-insensitive file systems (e.g. HFS+); may
wenzelm
parents: 11551
diff changeset
   896
run both "isabelle" and "Isabelle" even if file names are badly
wenzelm
parents: 11551
diff changeset
   897
damaged (executable inspects the case of the first letter of its own
wenzelm
parents: 11551
diff changeset
   898
name); added separate "isabelle-process" and "isabelle-interface";
11551
8b5064d1c5c9 * system: support Poly/ML 4.1.1 (large heaps);
wenzelm
parents: 11549
diff changeset
   899
12472
wenzelm
parents: 12467
diff changeset
   900
* system: refrain from any attempt at filtering input streams; no
wenzelm
parents: 12467
diff changeset
   901
longer support ``8bit'' encoding of old isabelle font, instead proper
wenzelm
parents: 12467
diff changeset
   902
iso-latin characters may now be used; the related isatools
wenzelm
parents: 12467
diff changeset
   903
"symbolinput" and "nonascii" have disappeared as well;
wenzelm
parents: 12467
diff changeset
   904
wenzelm
parents: 12467
diff changeset
   905
* system: removed old "xterm" interface (the print modes "xterm" and
wenzelm
parents: 12467
diff changeset
   906
"xterm_color" are still available for direct use in a suitable
wenzelm
parents: 12467
diff changeset
   907
terminal);
wenzelm
parents: 12467
diff changeset
   908
11314
f6eebbbed449 ZF: division
paulson
parents: 11307
diff changeset
   909
11169
98c2f741e32b made split_all_tac safe introducing safe_full_simp_tac, EXISTING PROOFS MAY FAIL
oheimb
parents: 11130
diff changeset
   910
11062
wenzelm
parents: 11050
diff changeset
   911
New in Isabelle99-2 (February 2001)
wenzelm
parents: 11050
diff changeset
   912
-----------------------------------
wenzelm
parents: 11050
diff changeset
   913
10224
7263c856787e *** empty log message ***
nipkow
parents: 10164
diff changeset
   914
*** Overview of INCOMPATIBILITIES ***
7263c856787e *** empty log message ***
nipkow
parents: 10164
diff changeset
   915
11241
61b21aacf04a Isar hint
paulson
parents: 11181
diff changeset
   916
* HOL: please note that theories in the Library and elsewhere often use the
61b21aacf04a Isar hint
paulson
parents: 11181
diff changeset
   917
new-style (Isar) format; to refer to their theorems in an ML script you must
12622
wenzelm
parents: 12608
diff changeset
   918
bind them to ML identifers by e.g.      val thm_name = thm "thm_name";
11241
61b21aacf04a Isar hint
paulson
parents: 11181
diff changeset
   919
11043
2e3bbac8763b HOL: inductive package no longer splits induction rule aggressively,
wenzelm
parents: 11016
diff changeset
   920
* HOL: inductive package no longer splits induction rule aggressively,
2e3bbac8763b HOL: inductive package no longer splits induction rule aggressively,
wenzelm
parents: 11016
diff changeset
   921
but only as far as specified by the introductions given; the old
11130
d14fd58615b9 added missiong word
oheimb
parents: 11124
diff changeset
   922
format may be recovered via ML function complete_split_rule or attribute
11043
2e3bbac8763b HOL: inductive package no longer splits induction rule aggressively,
wenzelm
parents: 11016
diff changeset
   923
'split_rule (complete)';
2e3bbac8763b HOL: inductive package no longer splits induction rule aggressively,
wenzelm
parents: 11016
diff changeset
   924
10998
wenzelm
parents: 10976
diff changeset
   925
* HOL: induct renamed to lfp_induct, lfp_Tarski to lfp_unfold,
wenzelm
parents: 10976
diff changeset
   926
gfp_Tarski to gfp_unfold;
10224
7263c856787e *** empty log message ***
nipkow
parents: 10164
diff changeset
   927
10288
00abecbfa46a contrapos
paulson
parents: 10245
diff changeset
   928
* HOL: contrapos, contrapos2 renamed to contrapos_nn, contrapos_pp;
00abecbfa46a contrapos
paulson
parents: 10245
diff changeset
   929
10858
wenzelm
parents: 10856
diff changeset
   930
* HOL: infix "dvd" now has priority 50 rather than 70 (because it is a
wenzelm
parents: 10856
diff changeset
   931
relation); infix "^^" has been renamed "``"; infix "``" has been
wenzelm
parents: 10856
diff changeset
   932
renamed "`"; "univalent" has been renamed "single_valued";
10793
4d6cf7702e3c *** empty log message ***
nipkow
parents: 10770
diff changeset
   933
10998
wenzelm
parents: 10976
diff changeset
   934
* HOL/Real: "rinv" and "hrinv" replaced by overloaded "inverse"
wenzelm
parents: 10976
diff changeset
   935
operation;
wenzelm
parents: 10976
diff changeset
   936
10868
5af3906edec8 *** empty log message ***
nipkow
parents: 10862
diff changeset
   937
* HOLCF: infix "`" has been renamed "$"; the symbol syntax is \<cdot>;
10856
e8a5340418b6 *** empty log message ***
nipkow
parents: 10799
diff changeset
   938
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   939
* Isar: 'obtain' no longer declares "that" fact as simp/intro;
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   940
10401
58bb50f69497 * Isar/HOL: method 'induct' now handles non-atomic goals; as a
wenzelm
parents: 10391
diff changeset
   941
* Isar/HOL: method 'induct' now handles non-atomic goals; as a
58bb50f69497 * Isar/HOL: method 'induct' now handles non-atomic goals; as a
wenzelm
parents: 10391
diff changeset
   942
consequence, it is no longer monotonic wrt. the local goal context
58bb50f69497 * Isar/HOL: method 'induct' now handles non-atomic goals; as a
wenzelm
parents: 10391
diff changeset
   943
(which is now passed through the inductive cases);
58bb50f69497 * Isar/HOL: method 'induct' now handles non-atomic goals; as a
wenzelm
parents: 10391
diff changeset
   944
10976
0e7cf6f9fa29 * Document preparation: renamed standard symbols \<ll> to \<lless> and
wenzelm
parents: 10966
diff changeset
   945
* Document preparation: renamed standard symbols \<ll> to \<lless> and
0e7cf6f9fa29 * Document preparation: renamed standard symbols \<ll> to \<lless> and
wenzelm
parents: 10966
diff changeset
   946
\<gg> to \<ggreater>;
0e7cf6f9fa29 * Document preparation: renamed standard symbols \<ll> to \<lless> and
wenzelm
parents: 10966
diff changeset
   947
10224
7263c856787e *** empty log message ***
nipkow
parents: 10164
diff changeset
   948
10245
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
   949
*** Document preparation ***
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
   950
10858
wenzelm
parents: 10856
diff changeset
   951
* \isabellestyle{NAME} selects version of Isabelle output (currently
wenzelm
parents: 10856
diff changeset
   952
available: are "it" for near math-mode best-style output, "sl" for
wenzelm
parents: 10856
diff changeset
   953
slanted text style, and "tt" for plain type-writer; if no
wenzelm
parents: 10856
diff changeset
   954
\isabellestyle command is given, output is according to slanted
wenzelm
parents: 10856
diff changeset
   955
type-writer);
wenzelm
parents: 10856
diff changeset
   956
10322
df38c61bf541 * support sub/super scripts (for single symbols only), input syntax is
wenzelm
parents: 10306
diff changeset
   957
* support sub/super scripts (for single symbols only), input syntax is
df38c61bf541 * support sub/super scripts (for single symbols only), input syntax is
wenzelm
parents: 10306
diff changeset
   958
like this: "A\<^sup>*" or "A\<^sup>\<star>";
df38c61bf541 * support sub/super scripts (for single symbols only), input syntax is
wenzelm
parents: 10306
diff changeset
   959
10858
wenzelm
parents: 10856
diff changeset
   960
* some more standard symbols; see Appendix A of the system manual for
11062
wenzelm
parents: 11050
diff changeset
   961
the complete list of symbols defined in isabellesym.sty;
10858
wenzelm
parents: 10856
diff changeset
   962
10998
wenzelm
parents: 10976
diff changeset
   963
* improved isabelle style files; more abstract symbol implementation
wenzelm
parents: 10976
diff changeset
   964
(should now use \isamath{...} and \isatext{...} in custom symbol
wenzelm
parents: 10976
diff changeset
   965
definitions);
wenzelm
parents: 10976
diff changeset
   966
10634
wenzelm
parents: 10609
diff changeset
   967
* antiquotation @{goals} and @{subgoals} for output of *dynamic* goals
wenzelm
parents: 10609
diff changeset
   968
state; Note that presentation of goal states does not conform to
wenzelm
parents: 10609
diff changeset
   969
actual human-readable proof documents.  Please do not include goal
wenzelm
parents: 10609
diff changeset
   970
states into document output unless you really know what you are doing!
10322
df38c61bf541 * support sub/super scripts (for single symbols only), input syntax is
wenzelm
parents: 10306
diff changeset
   971
11062
wenzelm
parents: 11050
diff changeset
   972
* proper indentation of antiquoted output with proportional LaTeX
wenzelm
parents: 11050
diff changeset
   973
fonts;
10862
857688d775b0 isatool unsymbolize;
wenzelm
parents: 10858
diff changeset
   974
11050
ac5709ac50b9 * no_document ML operator temporarily disables LaTeX document
wenzelm
parents: 11043
diff changeset
   975
* no_document ML operator temporarily disables LaTeX document
ac5709ac50b9 * no_document ML operator temporarily disables LaTeX document
wenzelm
parents: 11043
diff changeset
   976
generation;
ac5709ac50b9 * no_document ML operator temporarily disables LaTeX document
wenzelm
parents: 11043
diff changeset
   977
11062
wenzelm
parents: 11050
diff changeset
   978
* isatool unsymbolize tunes sources for plain ASCII communication;
wenzelm
parents: 11050
diff changeset
   979
10322
df38c61bf541 * support sub/super scripts (for single symbols only), input syntax is
wenzelm
parents: 10306
diff changeset
   980
10306
b0ab988a27a9 * HOL: default proof step now includes 'intro_classes';
wenzelm
parents: 10288
diff changeset
   981
*** Isar ***
b0ab988a27a9 * HOL: default proof step now includes 'intro_classes';
wenzelm
parents: 10288
diff changeset
   982
10547
wenzelm
parents: 10514
diff changeset
   983
* Pure: Isar now suffers initial goal statements to contain unbound
wenzelm
parents: 10514
diff changeset
   984
schematic variables (this does not conform to actual readable proof
wenzelm
parents: 10514
diff changeset
   985
documents, due to unpredictable outcome and non-compositional proof
wenzelm
parents: 10514
diff changeset
   986
checking); users who know what they are doing may use schematic goals
wenzelm
parents: 10514
diff changeset
   987
for Prolog-style synthesis of proven results;
wenzelm
parents: 10514
diff changeset
   988
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   989
* Pure: assumption method (an implicit finishing) now handles actual
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   990
rules as well;
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   991
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   992
* Pure: improved 'obtain' --- moved to Pure, insert "that" into
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   993
initial goal, declare "that" only as Pure intro (only for single
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   994
steps); the "that" rule assumption may now be involved in implicit
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   995
finishing, thus ".." becomes a feasible for trivial obtains;
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   996
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   997
* Pure: default proof step now includes 'intro_classes'; thus trivial
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   998
instance proofs may be performed by "..";
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   999
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1000
* Pure: ?thesis / ?this / "..." now work for pure meta-level
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1001
statements as well;
10306
b0ab988a27a9 * HOL: default proof step now includes 'intro_classes';
wenzelm
parents: 10288
diff changeset
  1002
11097
c1be9f2dff4c more robust selection of calculational rules;
wenzelm
parents: 11094
diff changeset
  1003
* Pure: more robust selection of calculational rules;
c1be9f2dff4c more robust selection of calculational rules;
wenzelm
parents: 11094
diff changeset
  1004
10858
wenzelm
parents: 10856
diff changeset
  1005
* Pure: the builtin notion of 'finished' goal now includes the ==-refl
wenzelm
parents: 10856
diff changeset
  1006
rule (as well as the assumption rule);
wenzelm
parents: 10856
diff changeset
  1007
wenzelm
parents: 10856
diff changeset
  1008
* Pure: 'thm_deps' command visualizes dependencies of theorems and
wenzelm
parents: 10856
diff changeset
  1009
lemmas, using the graph browser tool;
wenzelm
parents: 10856
diff changeset
  1010
10944
710ddb9e8b5e *** empty log message ***
wenzelm
parents: 10915
diff changeset
  1011
* Pure: predict failure of "show" in interactive mode;
710ddb9e8b5e *** empty log message ***
wenzelm
parents: 10915
diff changeset
  1012
11016
8f8ba41a5e7a * Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents: 10998
diff changeset
  1013
* Pure: 'thms_containing' now takes actual terms as arguments;
8f8ba41a5e7a * Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents: 10998
diff changeset
  1014
10401
58bb50f69497 * Isar/HOL: method 'induct' now handles non-atomic goals; as a
wenzelm
parents: 10391
diff changeset
  1015
* HOL: improved method 'induct' --- now handles non-atomic goals
58bb50f69497 * Isar/HOL: method 'induct' now handles non-atomic goals; as a
wenzelm
parents: 10391
diff changeset
  1016
(potential INCOMPATIBILITY); tuned error handling;
58bb50f69497 * Isar/HOL: method 'induct' now handles non-atomic goals; as a
wenzelm
parents: 10391
diff changeset
  1017
10557
wenzelm
parents: 10547
diff changeset
  1018
* HOL: cases and induct rules now provide explicit hints about the
10547
wenzelm
parents: 10514
diff changeset
  1019
number of facts to be consumed (0 for "type" and 1 for "set" rules);
wenzelm
parents: 10514
diff changeset
  1020
any remaining facts are inserted into the goal verbatim;
wenzelm
parents: 10514
diff changeset
  1021
10858
wenzelm
parents: 10856
diff changeset
  1022
* HOL: local contexts (aka cases) may now contain term bindings as
wenzelm
parents: 10856
diff changeset
  1023
well; the 'cases' and 'induct' methods new provide a ?case binding for
wenzelm
parents: 10856
diff changeset
  1024
the result to be shown in each case;
wenzelm
parents: 10856
diff changeset
  1025
10770
4858ad0b8f38 * Isar/HOL: added 'recdef_tc' command;
wenzelm
parents: 10756
diff changeset
  1026
* HOL: added 'recdef_tc' command;
4858ad0b8f38 * Isar/HOL: added 'recdef_tc' command;
wenzelm
parents: 10756
diff changeset
  1027
11016
8f8ba41a5e7a * Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents: 10998
diff changeset
  1028
* isatool convert assists in eliminating legacy ML scripts;
8f8ba41a5e7a * Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents: 10998
diff changeset
  1029
10306
b0ab988a27a9 * HOL: default proof step now includes 'intro_classes';
wenzelm
parents: 10288
diff changeset
  1030
10245
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1031
*** HOL ***
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1032
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1033
* HOL/Library: a collection of generic theories to be used together
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1034
with main HOL; the theory loader path already includes this directory
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1035
by default; the following existing theories have been moved here:
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1036
HOL/Induct/Multiset, HOL/Induct/Acc (as Accessible_Part), HOL/While
10337
fca9cd9fd115 added HOL/Library/List_Prefix;
wenzelm
parents: 10322
diff changeset
  1037
(as While_Combinator), HOL/Lex/Prefix (as List_Prefix);
10245
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1038
10966
8f2c27041a8e added HOL-Unix example;
wenzelm
parents: 10944
diff changeset
  1039
* HOL/Unix: "Some aspects of Unix file-system security", a typical
8f2c27041a8e added HOL-Unix example;
wenzelm
parents: 10944
diff changeset
  1040
modelling and verification task performed in Isabelle/HOL +
8f2c27041a8e added HOL-Unix example;
wenzelm
parents: 10944
diff changeset
  1041
Isabelle/Isar + Isabelle document preparation (by Markus Wenzel).
8f2c27041a8e added HOL-Unix example;
wenzelm
parents: 10944
diff changeset
  1042
11094
wenzelm
parents: 11091
diff changeset
  1043
* HOL/Algebra: special summation operator SUM no longer exists, it has
wenzelm
parents: 11091
diff changeset
  1044
been replaced by setsum; infix 'assoc' now has priority 50 (like
wenzelm
parents: 11091
diff changeset
  1045
'dvd'); axiom 'one_not_zero' has been moved from axclass 'ring' to
wenzelm
parents: 11091
diff changeset
  1046
'domain', this makes the theory consistent with mathematical
wenzelm
parents: 11091
diff changeset
  1047
literature;
wenzelm
parents: 11091
diff changeset
  1048
10514
3db037155f0e * HOL: syntax or "abs";
wenzelm
parents: 10474
diff changeset
  1049
* HOL basics: added overloaded operations "inverse" and "divide"
10726
wenzelm
parents: 10664
diff changeset
  1050
(infix "/"), syntax for generic "abs" operation, generic summation
11094
wenzelm
parents: 11091
diff changeset
  1051
operator \<Sum>;
10452
abeefb0a79ae * added overloaded operations "inverse" and "divide" (infix "/");
wenzelm
parents: 10428
diff changeset
  1052
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1053
* HOL/typedef: simplified package, provide more useful rules (see also
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1054
HOL/subset.thy);
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1055
10915
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1056
* HOL/datatype: induction rule for arbitrarily branching datatypes is
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1057
now expressed as a proper nested rule (old-style tactic scripts may
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1058
require atomize_strip_tac to cope with non-atomic premises);
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1059
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1060
* HOL: renamed theory "Prod" to "Product_Type", renamed "split" rule
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1061
to "split_conv" (old name still available for compatibility);
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1062
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1063
* HOL: improved concrete syntax for strings (e.g. allows translation
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1064
rules with string literals);
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1065
12245
3dd9aae402bb Hyperreal
paulson
parents: 12210
diff changeset
  1066
* HOL-Real-Hyperreal: this extends HOL-Real with the hyperreals
3dd9aae402bb Hyperreal
paulson
parents: 12210
diff changeset
  1067
 and Fleuriot's mechanization of analysis, including the transcendental
3dd9aae402bb Hyperreal
paulson
parents: 12210
diff changeset
  1068
 functions for the reals;
10756
831c864cc56e Hyperreal
paulson
parents: 10726
diff changeset
  1069
11094
wenzelm
parents: 11091
diff changeset
  1070
* HOL/Real, HOL/Hyperreal: improved arithmetic simplification;
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1071
10858
wenzelm
parents: 10856
diff changeset
  1072
10474
paulson
parents: 10461
diff changeset
  1073
*** CTT ***
paulson
parents: 10461
diff changeset
  1074
10547
wenzelm
parents: 10514
diff changeset
  1075
* CTT: x-symbol support for Pi, Sigma, -->, : (membership); note that
wenzelm
parents: 10514
diff changeset
  1076
"lam" is displayed as TWO lambda-symbols
10474
paulson
parents: 10461
diff changeset
  1077
10547
wenzelm
parents: 10514
diff changeset
  1078
* CTT: theory Main now available, containing everything (that is, Bool
wenzelm
parents: 10514
diff changeset
  1079
and Arith);
wenzelm
parents: 10514
diff changeset
  1080
10474
paulson
parents: 10461
diff changeset
  1081
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1082
*** General ***
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1083
10547
wenzelm
parents: 10514
diff changeset
  1084
* Pure: the Simplifier has been implemented properly as a derived rule
wenzelm
parents: 10514
diff changeset
  1085
outside of the actual kernel (at last!); the overall performance
wenzelm
parents: 10514
diff changeset
  1086
penalty in practical applications is about 50%, while reliability of
wenzelm
parents: 10514
diff changeset
  1087
the Isabelle inference kernel has been greatly improved;
wenzelm
parents: 10514
diff changeset
  1088
11112
wenzelm
parents: 11097
diff changeset
  1089
* print modes "brackets" and "no_brackets" control output of nested =>
wenzelm
parents: 11097
diff changeset
  1090
(types) and ==> (props); the default behaviour is "brackets";
wenzelm
parents: 11097
diff changeset
  1091
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1092
* Provers: fast_tac (and friends) now handle actual object-logic rules
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1093
as assumptions as well;
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1094
11124
5b97a468b46d isatool install handles KDE version 1 or 2;
wenzelm
parents: 11112
diff changeset
  1095
* system: support Poly/ML 4.0;
5b97a468b46d isatool install handles KDE version 1 or 2;
wenzelm
parents: 11112
diff changeset
  1096
5b97a468b46d isatool install handles KDE version 1 or 2;
wenzelm
parents: 11112
diff changeset
  1097
* system: isatool install handles KDE version 1 or 2;
5b97a468b46d isatool install handles KDE version 1 or 2;
wenzelm
parents: 11112
diff changeset
  1098
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1099
10245
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1100
10103
4e446f8cef3e Isabelle99-1 (October 2000);
wenzelm
parents: 10080
diff changeset
  1101
New in Isabelle99-1 (October 2000)
4e446f8cef3e Isabelle99-1 (October 2000);
wenzelm
parents: 10080
diff changeset
  1102
----------------------------------
8015
wenzelm
parents: 8014
diff changeset
  1103
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1104
*** Overview of INCOMPATIBILITIES ***
8014
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
  1105
8848
wenzelm
parents: 8832
diff changeset
  1106
* HOL: simplification of natural numbers is much changed; to partly
wenzelm
parents: 8832
diff changeset
  1107
recover the old behaviour (e.g. to prevent n+n rewriting to #2*n)
wenzelm
parents: 8832
diff changeset
  1108
issue the following ML commands:
wenzelm
parents: 8832
diff changeset
  1109
wenzelm
parents: 8832
diff changeset
  1110
  Delsimprocs Nat_Numeral_Simprocs.cancel_numerals;
wenzelm
parents: 8832
diff changeset
  1111
  Delsimprocs [Nat_Numeral_Simprocs.combine_numerals];
8788
518a5450ab6d simprocs
paulson
parents: 8736
diff changeset
  1112
10129
a62b275ac0f7 improved t.weak_case_cong text;
wenzelm
parents: 10103
diff changeset
  1113
* HOL: simplification no longer dives into case-expressions; this is
a62b275ac0f7 improved t.weak_case_cong text;
wenzelm
parents: 10103
diff changeset
  1114
controlled by "t.weak_case_cong" for each datatype t;
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1115
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1116
* HOL: nat_less_induct renamed to less_induct;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1117
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1118
* HOL: systematic renaming of the SOME (Eps) rules, may use isatool
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1119
fixsome to patch .thy and .ML sources automatically;
8967
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
  1120
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1121
  select_equality  -> some_equality
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1122
  select_eq_Ex     -> some_eq_ex
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1123
  selectI2EX       -> someI2_ex
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1124
  selectI2         -> someI2
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1125
  selectI          -> someI
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1126
  select1_equality -> some1_equality
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1127
  Eps_sym_eq       -> some_sym_eq_trivial
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1128
  Eps_eq           -> some_eq_trivial
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1129
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1130
* HOL: exhaust_tac on datatypes superceded by new generic case_tac;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1131
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1132
* HOL: removed obsolete theorem binding expand_if (refer to split_if
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1133
instead);
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1134
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1135
* HOL: the recursion equations generated by 'recdef' are now called
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1136
f.simps instead of f.rules;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1137
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1138
* HOL: qed_spec_mp now also handles bounded ALL as well;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1139
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1140
* HOL: 0 is now overloaded, so the type constraint ":: nat" may
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1141
sometimes be needed;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1142
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1143
* HOL: the constant for "f``x" is now "image" rather than "op ``";
8014
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
  1144
10065
ddb3a014f721 renaming the inverse image operator in HOL
paulson
parents: 10003
diff changeset
  1145
* HOL: the constant for "f-``x" is now "vimage" rather than "op -``";
ddb3a014f721 renaming the inverse image operator in HOL
paulson
parents: 10003
diff changeset
  1146
9330
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
  1147
* HOL: the disjoint sum is now "<+>" instead of "Plus"; the cartesian
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
  1148
product is now "<*>" instead of "Times"; the lexicographic product is
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
  1149
now "<*lex*>" instead of "**";
8705
a3da5538d924 *** empty log message ***
nipkow
parents: 8673
diff changeset
  1150
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1151
* HOL: theory Sexp is now in HOL/Induct examples (it used to be part
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1152
of main HOL, but was unused); better use HOL's datatype package;
9971
e0164f01d55a renamed the select rules
paulson
parents: 9941
diff changeset
  1153
10137
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
  1154
* HOL: removed "symbols" syntax for constant "override" of theory Map;
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
  1155
the old syntax may be recovered as follows:
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
  1156
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
  1157
  syntax (symbols)
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
  1158
    override  :: "('a ~=> 'b) => ('a ~=> 'b) => ('a ~=> 'b)"
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
  1159
      (infixl "\\<oplus>" 100)
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
  1160
8848
wenzelm
parents: 8832
diff changeset
  1161
* HOL/Real: "rabs" replaced by overloaded "abs" function;
wenzelm
parents: 8832
diff changeset
  1162
8887
c0c583ce0b0b * HOL/ML: even fewer consts are declared as global (see theories Ord,
wenzelm
parents: 8848
diff changeset
  1163
* HOL/ML: even fewer consts are declared as global (see theories Ord,
c0c583ce0b0b * HOL/ML: even fewer consts are declared as global (see theories Ord,
wenzelm
parents: 8848
diff changeset
  1164
Lfp, Gfp, WF); this only affects ML packages that refer to const names
c0c583ce0b0b * HOL/ML: even fewer consts are declared as global (see theories Ord,
wenzelm
parents: 8848
diff changeset
  1165
internally;
c0c583ce0b0b * HOL/ML: even fewer consts are declared as global (see theories Ord,
wenzelm
parents: 8848
diff changeset
  1166
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1167
* HOL and ZF: syntax for quotienting wrt an equivalence relation
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1168
changed from A/r to A//r;
9908
7c7ff65b6846 HOL: qed_spec_mp now also removes bounded ALL;
wenzelm
parents: 9871
diff changeset
  1169
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1170
* ZF: new treatment of arithmetic (nat & int) may break some old
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1171
proofs;
8921
7c04c98132c4 * Pure: changed syntax of local blocks from {{ }} to { };
wenzelm
parents: 8887
diff changeset
  1172
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1173
* Isar: renamed some attributes (RS -> THEN, simplify -> simplified,
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1174
rulify -> rule_format, elimify -> elim_format, ...);
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
  1175
9941
fe05af7ec816 renamed atts: rulify to rule_format, elimify to elim_format;
wenzelm
parents: 9937
diff changeset
  1176
* Isar/Provers: intro/elim/dest attributes changed; renamed
fe05af7ec816 renamed atts: rulify to rule_format, elimify to elim_format;
wenzelm
parents: 9937
diff changeset
  1177
intro/intro!/intro!! flags to intro!/intro/intro? (in most cases, one
9937
431c96ac997e replaced "delrule" by "rule del";
wenzelm
parents: 9908
diff changeset
  1178
should have to change intro!! to intro? only); replaced "delrule" by
431c96ac997e replaced "delrule" by "rule del";
wenzelm
parents: 9908
diff changeset
  1179
"rule del";
9437
93e91040c286 * Isar/Provers: intro/elim/dest attributes: changed
wenzelm
parents: 9402
diff changeset
  1180
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1181
* Isar/HOL: renamed "intrs" to "intros" in inductive definitions;
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1182
9437
93e91040c286 * Isar/Provers: intro/elim/dest attributes: changed
wenzelm
parents: 9402
diff changeset
  1183
* Provers: strengthened force_tac by using new first_best_tac;
9402
480a1b40fdd6 strengthened force_tac by using new first_best_tac
oheimb
parents: 9388
diff changeset
  1184
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1185
* LaTeX document preparation: several changes of isabelle.sty (see
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1186
lib/texinputs);
8729
094dbd0fad0c * improved name spaces: ambiguous output is qualified; support for
wenzelm
parents: 8705
diff changeset
  1187
8014
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
  1188
8487
5f3b0e02ec15 Isar: splitter support; improved diagnostics;
wenzelm
parents: 8440
diff changeset
  1189
*** Document preparation ***
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1190
9198
0ab3c81e9425 * formal comments (text blocks etc.) in new-style theories may now
wenzelm
parents: 9185
diff changeset
  1191
* formal comments (text blocks etc.) in new-style theories may now
9753
wenzelm
parents: 9746
diff changeset
  1192
contain antiquotations of thm/prop/term/typ/text to be presented
wenzelm
parents: 9746
diff changeset
  1193
according to latex print mode; concrete syntax is like this:
wenzelm
parents: 9746
diff changeset
  1194
@{term[show_types] "f(x) = a + x"};
9198
0ab3c81e9425 * formal comments (text blocks etc.) in new-style theories may now
wenzelm
parents: 9185
diff changeset
  1195
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1196
* isatool mkdir provides easy setup of Isabelle session directories,
8518
wenzelm
parents: 8487
diff changeset
  1197
including proper document sources;
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1198
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1199
* generated LaTeX sources are now deleted after successful run
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1200
(isatool document -c); may retain a copy somewhere else via -D option
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1201
of isatool usedir;
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1202
8566
30261b1917b5 usedir -D: update styles;
wenzelm
parents: 8534
diff changeset
  1203
* isatool usedir -D now lets isatool latex -o sty update the Isabelle
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1204
style files, achieving self-contained LaTeX sources and simplifying
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1205
LaTeX debugging;
8566
30261b1917b5 usedir -D: update styles;
wenzelm
parents: 8534
diff changeset
  1206
8518
wenzelm
parents: 8487
diff changeset
  1207
* old-style theories now produce (crude) LaTeX output as well;
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1208
9057
af1ca1acf292 * browser info session directories are now self-contained (may be put
wenzelm
parents: 9052
diff changeset
  1209
* browser info session directories are now self-contained (may be put
9437
93e91040c286 * Isar/Provers: intro/elim/dest attributes: changed
wenzelm
parents: 9402
diff changeset
  1210
on WWW server seperately); improved graphs of nested sessions; removed
93e91040c286 * Isar/Provers: intro/elim/dest attributes: changed
wenzelm
parents: 9402
diff changeset
  1211
graph for 'all sessions';
9057
af1ca1acf292 * browser info session directories are now self-contained (may be put
wenzelm
parents: 9052
diff changeset
  1212
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1213
* several improvements in isabelle style files; \isabellestyle{it}
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1214
produces fake math mode output; \isamarkupheader is now \section by
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1215
default; see lib/texinputs/isabelle.sty etc.;
9489
aa757b35b129 * blast(_tac) now handles actual object-logic rules as assumptions;
wenzelm
parents: 9457
diff changeset
  1216
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1217
8184
6b7ef9fc39da nat as names;
wenzelm
parents: 8015
diff changeset
  1218
*** Isar ***
6b7ef9fc39da nat as names;
wenzelm
parents: 8015
diff changeset
  1219
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1220
* Isar/Pure: local results and corresponding term bindings are now
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1221
subject to Hindley-Milner polymorphism (similar to ML); this
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1222
accommodates incremental type-inference very nicely;
8283
0a319c5746eb * Pure now provides its own version of intro/elim/dest attributes;
wenzelm
parents: 8271
diff changeset
  1223
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1224
* Isar/Pure: new derived language element 'obtain' supports
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1225
generalized existence reasoning;
8621
8ba0f90f6f35 * Isar/Pure: local results and corresponding term bindings are now
wenzelm
parents: 8603
diff changeset
  1226
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1227
* Isar/Pure: new calculational elements 'moreover' and 'ultimately'
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1228
support accumulation of results, without applying any rules yet;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1229
useful to collect intermediate results without explicit name
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1230
references, and for use with transitivity rules with more than 2
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1231
premises;
8184
6b7ef9fc39da nat as names;
wenzelm
parents: 8015
diff changeset
  1232
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1233
* Isar/Pure: scalable support for case-analysis type proofs: new
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1234
'case' language element refers to local contexts symbolically, as
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1235
produced by certain proof methods; internally, case names are attached
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1236
to theorems as "tags";
8440
d66f0f14b1ca * HOL: exhaust_tac on datatypes superceded by new case_tac;
wenzelm
parents: 8425
diff changeset
  1237
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1238
* Isar/Pure: theory command 'hide' removes declarations from
9330
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
  1239
class/type/const name spaces;
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
  1240
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1241
* Isar/Pure: theory command 'defs' supports option "(overloaded)" to
9330
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
  1242
indicate potential overloading;
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
  1243
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1244
* Isar/Pure: changed syntax of local blocks from {{ }} to { };
8621
8ba0f90f6f35 * Isar/Pure: local results and corresponding term bindings are now
wenzelm
parents: 8603
diff changeset
  1245
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1246
* Isar/Pure: syntax of sorts made 'inner', i.e. have to write
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1247
"{a,b,c}" instead of {a,b,c};
9011
0cfc347f8d19 Isar/Pure: removed obsolete 'transfer' attribute (transfer of thms to
wenzelm
parents: 8994
diff changeset
  1248
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1249
* Isar/Pure now provides its own version of intro/elim/dest
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1250
attributes; useful for building new logics, but beware of confusion
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1251
with the version in Provers/classical;
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1252
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1253
* Isar/Pure: the local context of (non-atomic) goals is provided via
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1254
case name 'antecedent';
8440
d66f0f14b1ca * HOL: exhaust_tac on datatypes superceded by new case_tac;
wenzelm
parents: 8425
diff changeset
  1255
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1256
* Isar/Pure: removed obsolete 'transfer' attribute (transfer of thms
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1257
to the current context is now done automatically);
9383
c21fa1c48de0 * HOL: removed obsolete expand_if = split_if; theorems if_splits =
wenzelm
parents: 9349
diff changeset
  1258
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1259
* Isar/Pure: theory command 'method_setup' provides a simple interface
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1260
for definining proof methods in ML;
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1261
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1262
* Isar/Provers: intro/elim/dest attributes changed; renamed
9941
fe05af7ec816 renamed atts: rulify to rule_format, elimify to elim_format;
wenzelm
parents: 9937
diff changeset
  1263
intro/intro!/intro!! flags to intro!/intro/intro? (INCOMPATIBILITY, in
fe05af7ec816 renamed atts: rulify to rule_format, elimify to elim_format;
wenzelm
parents: 9937
diff changeset
  1264
most cases, one should have to change intro!! to intro? only);
fe05af7ec816 renamed atts: rulify to rule_format, elimify to elim_format;
wenzelm
parents: 9937
diff changeset
  1265
replaced "delrule" by "rule del";
8283
0a319c5746eb * Pure now provides its own version of intro/elim/dest attributes;
wenzelm
parents: 8271
diff changeset
  1266
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1267
* Isar/Provers: new 'hypsubst' method, plain 'subst' method and
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1268
'symmetric' attribute (the latter supercedes [RS sym]);
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1269
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1270
* Isar/Provers: splitter support (via 'split' attribute and 'simp'
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1271
method modifier); 'simp' method: 'only:' modifier removes loopers as
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1272
well (including splits);
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1273
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1274
* Isar/Provers: Simplifier and Classical methods now support all kind
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1275
of modifiers used in the past, including 'cong', 'iff', etc.
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1276
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1277
* Isar/Provers: added 'fastsimp' and 'clarsimp' methods (combination
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1278
of Simplifier and Classical reasoner);
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1279
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1280
* Isar/HOL: new proof method 'cases' and improved version of 'induct'
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1281
now support named cases; major packages (inductive, datatype, primrec,
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1282
recdef) support case names and properly name parameters;
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1283
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1284
* Isar/HOL: new transitivity rules for substitution in inequalities --
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1285
monotonicity conditions are extracted to be proven at end of
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1286
calculations;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1287
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1288
* Isar/HOL: removed 'case_split' thm binding, should use 'cases' proof
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1289
method anyway;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1290
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1291
* Isar/HOL: removed old expand_if = split_if; theorems if_splits =
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1292
split_if split_if_asm; datatype package provides theorems foo.splits =
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1293
foo.split foo.split_asm for each datatype;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1294
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1295
* Isar/HOL: tuned inductive package, rename "intrs" to "intros"
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1296
(potential INCOMPATIBILITY), emulation of mk_cases feature for proof
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1297
scripts: new 'inductive_cases' command and 'ind_cases' method; (Note:
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1298
use "(cases (simplified))" method in proper proof texts);
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1299
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1300
* Isar/HOL: added global 'arith_split' attribute for 'arith' method;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1301
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1302
* Isar: names of theorems etc. may be natural numbers as well;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1303
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1304
* Isar: 'pr' command: optional arguments for goals_limit and
9724
2030c5d63741 * 'pr' command: optional argument for ProofContext.prems_limit;
wenzelm
parents: 9709
diff changeset
  1305
ProofContext.prems_limit; no longer prints theory contexts, but only
2030c5d63741 * 'pr' command: optional argument for ProofContext.prems_limit;
wenzelm
parents: 9709
diff changeset
  1306
proof states;
8487
5f3b0e02ec15 Isar: splitter support; improved diagnostics;
wenzelm
parents: 8440
diff changeset
  1307
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1308
* Isar: diagnostic commands 'pr', 'thm', 'prop', 'term', 'typ' admit
8518
wenzelm
parents: 8487
diff changeset
  1309
additional print modes to be specified; e.g. "pr(latex)" will print
wenzelm
parents: 8487
diff changeset
  1310
proof state according to the Isabelle LaTeX style;
8487
5f3b0e02ec15 Isar: splitter support; improved diagnostics;
wenzelm
parents: 8440
diff changeset
  1311
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1312
* Isar: improved support for emulating tactic scripts, including proof
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1313
methods 'rule_tac' etc., 'cut_tac', 'thin_tac', 'subgoal_tac',
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1314
'rename_tac', 'rotate_tac', 'tactic', and 'case_tac' / 'induct_tac'
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1315
(for HOL datatypes);
8534
fdbabfbc3829 improved support for emulating tactic scripts;
wenzelm
parents: 8518
diff changeset
  1316
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1317
* Isar: simplified (more robust) goal selection of proof methods: 1st
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1318
goal, all goals, or explicit goal specifier (tactic emulation); thus
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1319
'proof method scripts' have to be in depth-first order;
8673
987ea1a559d0 Isar: simplified (more robust) goal selection of proof methods;
wenzelm
parents: 8655
diff changeset
  1320
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1321
* Isar: tuned 'let' syntax: replaced 'as' keyword by 'and';
8729
094dbd0fad0c * improved name spaces: ambiguous output is qualified; support for
wenzelm
parents: 8705
diff changeset
  1322
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1323
* Isar: removed 'help' command, which hasn't been too helpful anyway;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1324
should instead use individual commands for printing items
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1325
(print_commands, print_methods etc.);
9224
0da360494917 * Isar: removed 'help' command, which hasn't been too helpful anyway;
wenzelm
parents: 9198
diff changeset
  1326
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1327
* Isar: added 'nothing' --- the empty list of theorems;
9239
b31c2132176a * added 'nothing' --- the empty list of theorems;
wenzelm
parents: 9229
diff changeset
  1328
8184
6b7ef9fc39da nat as names;
wenzelm
parents: 8015
diff changeset
  1329
8014
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
  1330
*** HOL ***
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
  1331
10080
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
  1332
* HOL/MicroJava: formalization of a fragment of Java, together with a
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
  1333
corresponding virtual machine and a specification of its bytecode
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
  1334
verifier and a lightweight bytecode verifier, including proofs of
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
  1335
type-safety; by Gerwin Klein, Tobias Nipkow, David von Oheimb, and
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
  1336
Cornelia Pusch (see also the homepage of project Bali at
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
  1337
http://isabelle.in.tum.de/Bali/);
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
  1338
8518
wenzelm
parents: 8487
diff changeset
  1339
* HOL/Algebra: new theory of rings and univariate polynomials, by
wenzelm
parents: 8487
diff changeset
  1340
Clemens Ballarin;
8014
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
  1341
10157
6d3987f3aad9 * HOL/Lattice: fundamental concepts of lattice theory and order structures;
wenzelm
parents: 10137
diff changeset
  1342
* HOL/NumberTheory: fundamental Theorem of Arithmetic, Chinese
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1343
Remainder Theorem, Fermat/Euler Theorem, Wilson's Theorem, by Thomas M
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1344
Rasmussen;
8570
63d4f3ea2e70 HOL/ex/Multiquote;
wenzelm
parents: 8566
diff changeset
  1345
10157
6d3987f3aad9 * HOL/Lattice: fundamental concepts of lattice theory and order structures;
wenzelm
parents: 10137
diff changeset
  1346
* HOL/Lattice: fundamental concepts of lattice theory and order
6d3987f3aad9 * HOL/Lattice: fundamental concepts of lattice theory and order structures;
wenzelm
parents: 10137
diff changeset
  1347
structures, including duals, properties of bounds versus algebraic
6d3987f3aad9 * HOL/Lattice: fundamental concepts of lattice theory and order structures;
wenzelm
parents: 10137
diff changeset
  1348
laws, lattice operations versus set-theoretic ones, the Knaster-Tarski
6d3987f3aad9 * HOL/Lattice: fundamental concepts of lattice theory and order structures;
wenzelm
parents: 10137
diff changeset
  1349
Theorem for complete lattices etc.; may also serve as a demonstration
6d3987f3aad9 * HOL/Lattice: fundamental concepts of lattice theory and order structures;
wenzelm
parents: 10137
diff changeset
  1350
for abstract algebraic reasoning using axiomatic type classes, and
6d3987f3aad9 * HOL/Lattice: fundamental concepts of lattice theory and order structures;
wenzelm
parents: 10137
diff changeset
  1351
mathematics-style proof in Isabelle/Isar; by Markus Wenzel;
6d3987f3aad9 * HOL/Lattice: fundamental concepts of lattice theory and order structures;
wenzelm
parents: 10137
diff changeset
  1352
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1353
* HOL/Prolog: a (bare-bones) implementation of Lambda-Prolog, by David
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1354
von Oheimb;
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
  1355
10164
c240747082aa * HOL/IMPP: extension of IMP with local variables and mutually
wenzelm
parents: 10157
diff changeset
  1356
* HOL/IMPP: extension of IMP with local variables and mutually
c240747082aa * HOL/IMPP: extension of IMP with local variables and mutually
wenzelm
parents: 10157
diff changeset
  1357
recursive procedures, by David von Oheimb;
c240747082aa * HOL/IMPP: extension of IMP with local variables and mutually
wenzelm
parents: 10157
diff changeset
  1358
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1359
* HOL/Lambda: converted into new-style theory and document;
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
  1360
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1361
* HOL/ex/Multiquote: example of multiple nested quotations and
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1362
anti-quotations -- basically a generalized version of de-Bruijn
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1363
representation; very useful in avoiding lifting of operations;
8848
wenzelm
parents: 8832
diff changeset
  1364
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1365
* HOL/record: added general record equality rule to simpset; fixed
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1366
select-update simplification procedure to handle extended records as
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1367
well; admit "r" as field name;
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
  1368
8967
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
  1369
* HOL: 0 is now overloaded over the new sort "zero", allowing its use with
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
  1370
other numeric types and also as the identity of groups, rings, etc.;
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
  1371
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
  1372
* HOL: new axclass plus_ac0 for addition with the AC-laws and 0 as identity.
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
  1373
Types nat and int belong to this axclass;
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
  1374
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1375
* HOL: greatly improved simplification involving numerals of type nat, int, real:
8788
518a5450ab6d simprocs
paulson
parents: 8736
diff changeset
  1376
   (i + #8 + j) = Suc k simplifies to  #7 + (i + j) = k
8832
bcceda950cd0 more details
paulson
parents: 8788
diff changeset
  1377
   i*j + k + j*#3*i     simplifies to  #4*(i*j) + k
bcceda950cd0 more details
paulson
parents: 8788
diff changeset
  1378
  two terms #m*u and #n*u are replaced by #(m+n)*u
bcceda950cd0 more details
paulson
parents: 8788
diff changeset
  1379
    (where #m, #n and u can implicitly be 1; this is simproc combine_numerals)
bcceda950cd0 more details
paulson
parents: 8788
diff changeset
  1380
  and the term/formula #m*u+x ~~ #n*u+y simplifies simplifies to #(m-n)+x ~~ y
bcceda950cd0 more details
paulson
parents: 8788
diff changeset
  1381
    or x ~~ #(n-m)+y, where ~~ is one of = < <= or - (simproc cancel_numerals);
8736
0bfd6678a5fa new simprocs for numerals of type "nat"
paulson
parents: 8729
diff changeset
  1382
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1383
* HOL: meson_tac is available (previously in ex/meson.ML); it is a
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1384
powerful prover for predicate logic but knows nothing of clasets; see
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1385
ex/mesontest.ML and ex/mesontest2.ML for example applications;
9835
543d23cd1259 meson_tac
paulson
parents: 9814
diff changeset
  1386
8848
wenzelm
parents: 8832
diff changeset
  1387
* HOL: new version of "case_tac" subsumes both boolean case split and
8440
d66f0f14b1ca * HOL: exhaust_tac on datatypes superceded by new case_tac;
wenzelm
parents: 8425
diff changeset
  1388
"exhaust_tac" on datatypes; INCOMPATIBILITY: exhaust_tac no longer
8518
wenzelm
parents: 8487
diff changeset
  1389
exists, may define val exhaust_tac = case_tac for ad-hoc portability;
8440
d66f0f14b1ca * HOL: exhaust_tac on datatypes superceded by new case_tac;
wenzelm
parents: 8425
diff changeset
  1390
8848
wenzelm
parents: 8832
diff changeset
  1391
* HOL: simplification no longer dives into case-expressions: only the
10129
a62b275ac0f7 improved t.weak_case_cong text;
wenzelm
parents: 10103
diff changeset
  1392
selector expression is simplified, but not the remaining arms; to
a62b275ac0f7 improved t.weak_case_cong text;
wenzelm
parents: 10103
diff changeset
  1393
enable full simplification of case-expressions for datatype t, you may
a62b275ac0f7 improved t.weak_case_cong text;
wenzelm
parents: 10103
diff changeset
  1394
remove t.weak_case_cong from the simpset, either globally (Delcongs
a62b275ac0f7 improved t.weak_case_cong text;
wenzelm
parents: 10103
diff changeset
  1395
[thm"t.weak_case_cong"];) or locally (delcongs [...]).
8603
805910de7be0 *** empty log message ***
nipkow
parents: 8570
diff changeset
  1396
8848
wenzelm
parents: 8832
diff changeset
  1397
* HOL/recdef: the recursion equations generated by 'recdef' for
wenzelm
parents: 8832
diff changeset
  1398
function 'f' are now called f.simps instead of f.rules; if all
wenzelm
parents: 8832
diff changeset
  1399
termination conditions are proved automatically, these simplification
wenzelm
parents: 8832
diff changeset
  1400
rules are added to the simpset, as in primrec; rules may be named
wenzelm
parents: 8832
diff changeset
  1401
individually as well, resulting in a separate list of theorems for
wenzelm
parents: 8832
diff changeset
  1402
each equation;
wenzelm
parents: 8832
diff changeset
  1403
9489
aa757b35b129 * blast(_tac) now handles actual object-logic rules as assumptions;
wenzelm
parents: 9457
diff changeset
  1404
* HOL/While is a new theory that provides a while-combinator. It
aa757b35b129 * blast(_tac) now handles actual object-logic rules as assumptions;
wenzelm
parents: 9457
diff changeset
  1405
permits the definition of tail-recursive functions without the
aa757b35b129 * blast(_tac) now handles actual object-logic rules as assumptions;
wenzelm
parents: 9457
diff changes