NEWS
author nipkow
Thu, 15 Jul 2004 08:38:37 +0200
changeset 15044 f224d27bb1f8
parent 15033 255bc508a756
child 15046 d6a4c3992e9d
permissions -rw-r--r--
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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: removed obsolete type class "logic", use the top sort {}
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  instead.  Note that non-logical types should be declared as
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  'nonterminals' rather than 'types'.  INCOMPATIBILITY for new
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  object-logic specifications.
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* Pure: print_tac now outputs the goal through the trace channel.
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* Pure: reference Namespace.unique_names included.  If true the
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  (shortest) namespace-prefix is printed to disambiguate conflicts (as
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  yet). If false the first entry wins (as during parsing). Default
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  value is true.
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* Pure: tuned internal renaming of symbolic identifiers -- attach
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  primes instead of base 26 numbers.
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* Pure/Syntax: inner syntax includes (*(*nested*) comments*).
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* Pure/Syntax: pretty pinter now supports unbreakable blocks,
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  specified in mixfix annotations as "(00...)".
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* Pure/Syntax: 'advanced' translation functions (parse_translation
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  etc.) may depend on the signature of the theory context being
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  presently used for parsing/printing, see also isar-ref manual.
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* Pure/Simplifier: simplification procedures may now take the current
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  simpset into account (cf. Simplifier.simproc(_i) / mk_simproc
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  interface), which is very useful for calling the Simplifier
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  recursively.  Minor INCOMPATIBILITY: the 'prems' argument of
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  simprocs is gone -- use prems_of_ss on the simpset instead.
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  Moreover, the low-level mk_simproc no longer applies Logic.varify
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  internally, to allow for use in a context of fixed variables.
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* Provers: Simplifier and Classical Reasoner now support proof context
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  dependent plug-ins (simprocs, solvers, wrappers etc.).  These extra
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  components are stored in the theory and patched into the
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  simpset/claset when used in an Isar proof context.  Context
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  dependent components are maintained by the following theory
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  operations:
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    Simplifier.add_context_simprocs
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    Simplifier.del_context_simprocs
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    Simplifier.set_context_subgoaler
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    Simplifier.reset_context_subgoaler
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    Simplifier.add_context_looper
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    Simplifier.del_context_looper
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    Simplifier.add_context_unsafe_solver
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    Simplifier.add_context_safe_solver
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    Classical.add_context_safe_wrapper
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    Classical.del_context_safe_wrapper
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    Classical.add_context_unsafe_wrapper
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    Classical.del_context_unsafe_wrapper
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  IMPORTANT NOTE: proof tools (methods etc.) need to use
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  local_simpset_of and local_claset_of to instead of the primitive
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  Simplifier.get_local_simpset and Classical.get_local_claset,
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  respectively, in order to see the context dependent fields!
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* Document preparation: antiquotations now provide the option
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  'locale=NAME' to specify an alternative context used for evaluating
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  and printing the subsequent argument, as in @{thm [locale=LC]
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  fold_commute}, for example.
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* Document preparation: commands 'display_drafts' and 'print_drafts'
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  perform simple output of raw sources.  Only those symbols that do
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  not require additional LaTeX packages (depending on comments in
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  isabellesym.sty) are displayed properly, everything else is left
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  verbatim.  We use isatool display and isatool print as front ends;
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  these are subject to the DVI_VIEWER and PRINT_COMMAND settings,
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  respectively.
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* ML: output via the Isabelle channels of writeln/warning/error
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  etc. is now passed through Output.output, with a hook for arbitrary
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  transformations depending on the print_mode (cf. Output.add_mode --
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  the first active mode that provides a output function wins).
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  Already formatted output may be embedded into further text via
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  Output.raw; the result of Pretty.string_of/str_of and derived
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  functions (string_of_term/cterm/thm etc.) is already marked raw to
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  accommodate easy composition of diagnostic messages etc.
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  Programmers rarely need to care about Output.output or Output.raw at
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  all, with some notable exceptions: Output.output is required when
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  bypassing the standard channels (writeln etc.), or in token
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  translations to produce properly formatted results; Output.raw is
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  required when capturing already output material that will eventually
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  be presented to the user a second time.  For the default print mode,
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  both Output.output and Output.raw have no effect.
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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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* HOL/record: Reference record_quick_and_dirty_sensitive can be
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  enabled to skip the proofs triggered by a record definition or a
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  simproc (if quick_and_dirty is enabled). Definitions of large
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  records can take quite long.
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* HOL/record: "record_upd_simproc" for simplification of multiple
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  record updates enabled by default.  Moreover, trivial updates are
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  also removed: r(|x := x r|) = r.  INCOMPATIBILITY: old proofs break
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  occasionally, since simplification is more powerful by default.
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* HOL: symbolic syntax of Hilbert Choice Operator is now as follows:
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  syntax (epsilon)
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    "_Eps" :: "[pttrn, bool] => 'a"    ("(3\<some>_./ _)" [0, 10] 10)
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  The symbol \<some> is displayed as the alternative epsilon of LaTeX
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  and x-symbol; use option '-m epsilon' to get it actually printed.
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  Moreover, the mathematically important symbolic identifier
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  \<epsilon> becomes available as variable, constant etc.
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* HOL: Summation over nat with syntax '\<Sum>i<k. e' is now just a
f224d27bb1f8 *** empty log message ***
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   156
  translation into 'setsum'.
14655
8a95abf87dd3 Pure: considerably improved version of 'constdefs' command;
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   157
14682
a5072752114c HOLCF: discontinued special version of 'constdefs';
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   158
*** HOLCF ***
a5072752114c HOLCF: discontinued special version of 'constdefs';
wenzelm
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diff changeset
   159
a5072752114c HOLCF: discontinued special version of 'constdefs';
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   160
* HOLCF: discontinued special version of 'constdefs' (which used to
14731
5670fc027a3b Pure: nested comments in inner syntax;
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diff changeset
   161
  support continuous functions) in favor of the general Pure one with
5670fc027a3b Pure: nested comments in inner syntax;
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diff changeset
   162
  full type-inference.
14682
a5072752114c HOLCF: discontinued special version of 'constdefs';
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diff changeset
   163
a5072752114c HOLCF: discontinued special version of 'constdefs';
wenzelm
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diff changeset
   164
14885
0a840138dcd7 Groups, Rings and supporting lemmas in ZF
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   165
*** ZF ***
0a840138dcd7 Groups, Rings and supporting lemmas in ZF
paulson
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diff changeset
   166
0a840138dcd7 Groups, Rings and supporting lemmas in ZF
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diff changeset
   167
* ZF/ex/{Group,Ring}: examples in abstract algebra, including the First
0a840138dcd7 Groups, Rings and supporting lemmas in ZF
paulson
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diff changeset
   168
  Isomorphism Theorem (on quotienting by the kernel of a homomorphism).
0a840138dcd7 Groups, Rings and supporting lemmas in ZF
paulson
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diff changeset
   169
0a840138dcd7 Groups, Rings and supporting lemmas in ZF
paulson
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diff changeset
   170
14655
8a95abf87dd3 Pure: considerably improved version of 'constdefs' command;
wenzelm
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diff changeset
   171
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diff changeset
   172
New in Isabelle2004 (April 2004)
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   173
--------------------------------
13280
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
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diff changeset
   174
14171
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   175
*** General ***
0cab06e3bbd0 Extended the notion of letter and digit, such that now one may use greek,
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   176
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   177
* Provers/order.ML:  new efficient reasoner for partial and linear orders.
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
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   178
  Replaces linorder.ML.
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
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   179
14606
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   180
* Pure: Greek letters (except small lambda, \<lambda>), as well as Gothic
0be6c11e7128 Pure: 'instance' now handles general arities;
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   181
  (\<aa>...\<zz>\<AA>...\<ZZ>), calligraphic (\<A>...\<Z>), and Euler
14173
a3690aeb79d4 Removed the extended digits again.
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   182
  (\<a>...\<z>), are now considered normal letters, and can therefore
a3690aeb79d4 Removed the extended digits again.
skalberg
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diff changeset
   183
  be used anywhere where an ASCII letter (a...zA...Z) has until
a3690aeb79d4 Removed the extended digits again.
skalberg
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diff changeset
   184
  now. COMPATIBILITY: This obviously changes the parsing of some
a3690aeb79d4 Removed the extended digits again.
skalberg
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diff changeset
   185
  terms, especially where a symbol has been used as a binder, say
a3690aeb79d4 Removed the extended digits again.
skalberg
parents: 14172
diff changeset
   186
  '\<Pi>x. ...', which is now a type error since \<Pi>x will be parsed
a3690aeb79d4 Removed the extended digits again.
skalberg
parents: 14172
diff changeset
   187
  as an identifier.  Fix it by inserting a space around former
a3690aeb79d4 Removed the extended digits again.
skalberg
parents: 14172
diff changeset
   188
  symbols.  Call 'isatool fixgreek' to try to fix parsing errors in
a3690aeb79d4 Removed the extended digits again.
skalberg
parents: 14172
diff changeset
   189
  existing theory and ML files.
14171
0cab06e3bbd0 Extended the notion of letter and digit, such that now one may use greek,
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diff changeset
   190
14237
a486123e24a5 line-breaks; rewording
paulson
parents: 14234
diff changeset
   191
* Pure: Macintosh and Windows line-breaks are now allowed in theory files.
a486123e24a5 line-breaks; rewording
paulson
parents: 14234
diff changeset
   192
14731
5670fc027a3b Pure: nested comments in inner syntax;
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   193
* Pure: single letter sub/superscripts (\<^isub> and \<^isup>) are now
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
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diff changeset
   194
  allowed in identifiers. Similar to Greek letters \<^isub> is now considered
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
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diff changeset
   195
  a normal (but invisible) letter. For multiple letter subscripts repeat
5670fc027a3b Pure: nested comments in inner syntax;
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diff changeset
   196
  \<^isub> like this: x\<^isub>1\<^isub>2.
14233
f6b6b2c55141 allow \<^sub> in identifiers
kleing
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diff changeset
   197
14333
14f29eb097a3 \<^bsub> .. \<^esub>
kleing
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diff changeset
   198
* Pure: There are now sub-/superscripts that can span more than one
14f29eb097a3 \<^bsub> .. \<^esub>
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diff changeset
   199
  character. Text between \<^bsub> and \<^esub> is set in subscript in
14606
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   200
  ProofGeneral and LaTeX, text between \<^bsup> and \<^esup> in
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   201
  superscript. The new control characters are not identifier parts.
14333
14f29eb097a3 \<^bsub> .. \<^esub>
kleing
parents: 14285
diff changeset
   202
14561
c53396af770e * raw control symbols are of the form \<^raw:...> now.
schirmer
parents: 14556
diff changeset
   203
* Pure: Control-symbols of the form \<^raw:...> will literally print the
14606
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   204
  content of "..." to the latex file instead of \isacntrl... . The "..."
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   205
  may consist of any printable characters excluding the end bracket >.
14361
ad2f5da643b4 * Support for raw latex output in control symbols: \<^raw...>
schirmer
parents: 14333
diff changeset
   206
14237
a486123e24a5 line-breaks; rewording
paulson
parents: 14234
diff changeset
   207
* Pure: Using new Isar command "finalconsts" (or the ML functions
a486123e24a5 line-breaks; rewording
paulson
parents: 14234
diff changeset
   208
  Theory.add_finals or Theory.add_finals_i) it is now possible to
a486123e24a5 line-breaks; rewording
paulson
parents: 14234
diff changeset
   209
  declare constants "final", which prevents their being given a definition
a486123e24a5 line-breaks; rewording
paulson
parents: 14234
diff changeset
   210
  later.  It is useful for constants whose behaviour is fixed axiomatically
14224
442c097c1437 Added info on the new 'finalconsts' command.
skalberg
parents: 14211
diff changeset
   211
  rather than definitionally, such as the meta-logic connectives.
442c097c1437 Added info on the new 'finalconsts' command.
skalberg
parents: 14211
diff changeset
   212
14606
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   213
* Pure: 'instance' now handles general arities with general sorts
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   214
  (i.e. intersections of classes),
14503
255ad604e08e Added check that Theory.ML does not occur in the files section of the theory
skalberg
parents: 14480
diff changeset
   215
14547
e0c0179100c9 isabelle.css
kleing
parents: 14536
diff changeset
   216
* Presentation: generated HTML now uses a CSS style sheet to make layout
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   217
  (somewhat) independent of content. It is copied from lib/html/isabelle.css.
14547
e0c0179100c9 isabelle.css
kleing
parents: 14536
diff changeset
   218
  It can be changed to alter the colors/layout of generated pages.
e0c0179100c9 isabelle.css
kleing
parents: 14536
diff changeset
   219
14556
c5078f6c99a9 * Calculation commands "moreover" and "also" no longer interfere with
wenzelm
parents: 14551
diff changeset
   220
14175
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   221
*** Isar ***
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   222
14508
859b11514537 Experimental command for instantiation of locales in proof contexts:
ballarin
parents: 14503
diff changeset
   223
* Tactic emulation methods rule_tac, erule_tac, drule_tac, frule_tac,
859b11514537 Experimental command for instantiation of locales in proof contexts:
ballarin
parents: 14503
diff changeset
   224
  cut_tac, subgoal_tac and thin_tac:
14175
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   225
  - Now understand static (Isar) contexts.  As a consequence, users of Isar
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   226
    locales are no longer forced to write Isar proof scripts.
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   227
    For details see Isar Reference Manual, paragraph 4.3.2: Further tactic
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   228
    emulations.
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   229
  - INCOMPATIBILITY: names of variables to be instantiated may no
14211
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   230
    longer be enclosed in quotes.  Instead, precede variable name with `?'.
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   231
    This is consistent with the instantiation attribute "where".
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   232
14257
a7ef3f7588c5 Type inference bug in Isar attributes "where" and "of" fixed.
ballarin
parents: 14255
diff changeset
   233
* Attributes "where" and "of":
14285
92ed032e83a1 Isar: where attribute supports instantiation of type vars.
ballarin
parents: 14283
diff changeset
   234
  - Now take type variables of instantiated theorem into account when reading
92ed032e83a1 Isar: where attribute supports instantiation of type vars.
ballarin
parents: 14283
diff changeset
   235
    the instantiation string.  This fixes a bug that caused instantiated
92ed032e83a1 Isar: where attribute supports instantiation of type vars.
ballarin
parents: 14283
diff changeset
   236
    theorems to have too special types in some circumstances.
92ed032e83a1 Isar: where attribute supports instantiation of type vars.
ballarin
parents: 14283
diff changeset
   237
  - "where" permits explicit instantiations of type variables.
14257
a7ef3f7588c5 Type inference bug in Isar attributes "where" and "of" fixed.
ballarin
parents: 14255
diff changeset
   238
14556
c5078f6c99a9 * Calculation commands "moreover" and "also" no longer interfere with
wenzelm
parents: 14551
diff changeset
   239
* Calculation commands "moreover" and "also" no longer interfere with
c5078f6c99a9 * Calculation commands "moreover" and "also" no longer interfere with
wenzelm
parents: 14551
diff changeset
   240
  current facts ("this"), admitting arbitrary combinations with "then"
c5078f6c99a9 * Calculation commands "moreover" and "also" no longer interfere with
wenzelm
parents: 14551
diff changeset
   241
  and derived forms.
14283
516358ca7b42 moreover and also do not reset facts any more
kleing
parents: 14257
diff changeset
   242
14211
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   243
* Locales:
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   244
  - Goal statements involving the context element "includes" no longer
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   245
    generate theorems with internal delta predicates (those ending on
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   246
    "_axioms") in the premise.
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   247
    Resolve particular premise with <locale>.intro to obtain old form.
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   248
  - Fixed bug in type inference ("unify_frozen") that prevented mix of target
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   249
    specification and "includes" elements in goal statement.
14254
342634f38451 Isar/Locales: <loc>.intro and <loc>.axioms no longer intro? and elim? by
ballarin
parents: 14243
diff changeset
   250
  - Rule sets <locale>.intro and <locale>.axioms no longer declared as
342634f38451 Isar/Locales: <loc>.intro and <loc>.axioms no longer intro? and elim? by
ballarin
parents: 14243
diff changeset
   251
    [intro?] and [elim?] (respectively) by default.
14508
859b11514537 Experimental command for instantiation of locales in proof contexts:
ballarin
parents: 14503
diff changeset
   252
  - Experimental command for instantiation of locales in proof contexts:
14551
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   253
        instantiate <label>[<attrs>]: <loc>
14508
859b11514537 Experimental command for instantiation of locales in proof contexts:
ballarin
parents: 14503
diff changeset
   254
    Instantiates locale <loc> and adds all its theorems to the current context
14551
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   255
    taking into account their attributes.  Label and attrs are optional
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   256
    modifiers, like in theorem declarations.  If present, names of
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   257
    instantiated theorems are qualified with <label>, and the attributes
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   258
    <attrs> are applied after any attributes these theorems might have already.
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   259
      If the locale has assumptions, a chained fact of the form
14508
859b11514537 Experimental command for instantiation of locales in proof contexts:
ballarin
parents: 14503
diff changeset
   260
    "<loc> t1 ... tn" is expected from which instantiations of the parameters
14551
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   261
    are derived.  The command does not support old-style locales declared
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   262
    with "locale (open)".
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   263
      A few (very simple) examples can be found in FOL/ex/LocaleInst.thy.
14175
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   264
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   265
* HOL: Tactic emulation methods induct_tac and case_tac understand static
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   266
  (Isar) contexts.
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   267
14556
c5078f6c99a9 * Calculation commands "moreover" and "also" no longer interfere with
wenzelm
parents: 14551
diff changeset
   268
14136
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   269
*** HOL ***
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   270
14624
9b3397a848c3 add HOL4
kleing
parents: 14610
diff changeset
   271
* Proof import: new image HOL4 contains the imported library from
9b3397a848c3 add HOL4
kleing
parents: 14610
diff changeset
   272
  the HOL4 system with about 2500 theorems. It is imported by
9b3397a848c3 add HOL4
kleing
parents: 14610
diff changeset
   273
  replaying proof terms produced by HOL4 in Isabelle. The HOL4 image
9b3397a848c3 add HOL4
kleing
parents: 14610
diff changeset
   274
  can be used like any other Isabelle image.  See
9b3397a848c3 add HOL4
kleing
parents: 14610
diff changeset
   275
  HOL/Import/HOL/README for more information.
9b3397a848c3 add HOL4
kleing
parents: 14610
diff changeset
   276
14398
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   277
* Simplifier:
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   278
  - Much improved handling of linear and partial orders.
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   279
    Reasoners for linear and partial orders are set up for type classes
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   280
    "linorder" and "order" respectively, and are added to the default simpset
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   281
    as solvers.  This means that the simplifier can build transitivity chains
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   282
    to solve goals from the assumptions.
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   283
  - INCOMPATIBILITY: old proofs break occasionally.  Typically, applications
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   284
    of blast or auto after simplification become unnecessary because the goal
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   285
    is solved by simplification already.
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   286
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   287
* Numerics: new theory Ring_and_Field contains over 250 basic numerical laws,
14389
paulson
parents: 14380
diff changeset
   288
    all proved in axiomatic type classes for semirings, rings and fields.
paulson
parents: 14380
diff changeset
   289
paulson
parents: 14380
diff changeset
   290
* Numerics:
paulson
parents: 14380
diff changeset
   291
  - Numeric types (nat, int, and in HOL-Complex rat, real, complex, etc.) are
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   292
    now formalized using the Ring_and_Field theory mentioned above.
14389
paulson
parents: 14380
diff changeset
   293
  - INCOMPATIBILITY: simplification and arithmetic behaves somewhat differently
paulson
parents: 14380
diff changeset
   294
    than before, because now they are set up once in a generic manner.
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   295
  - INCOMPATIBILITY: many type-specific arithmetic laws have gone.
14480
14b7923b3307 clarified
paulson
parents: 14464
diff changeset
   296
    Look for the general versions in Ring_and_Field (and Power if they concern
14b7923b3307 clarified
paulson
parents: 14464
diff changeset
   297
    exponentiation).
14389
paulson
parents: 14380
diff changeset
   298
14401
477380c74c1d removal of the legacy ML structure List
paulson
parents: 14399
diff changeset
   299
* Type "rat" of the rational numbers is now available in HOL-Complex.
14389
paulson
parents: 14380
diff changeset
   300
14255
e6e3e3f0deed Records:
schirmer
parents: 14254
diff changeset
   301
* Records:
e6e3e3f0deed Records:
schirmer
parents: 14254
diff changeset
   302
  - Record types are now by default printed with their type abbreviation
e6e3e3f0deed Records:
schirmer
parents: 14254
diff changeset
   303
    instead of the list of all field types. This can be configured via
e6e3e3f0deed Records:
schirmer
parents: 14254
diff changeset
   304
    the reference "print_record_type_abbr".
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   305
  - Simproc "record_upd_simproc" for simplification of multiple updates added
14255
e6e3e3f0deed Records:
schirmer
parents: 14254
diff changeset
   306
    (not enabled by default).
14427
cea7d2f76112 added record_ex_sel_eq_simproc
schirmer
parents: 14418
diff changeset
   307
  - Simproc "record_ex_sel_eq_simproc" to simplify EX x. sel r = x resp.
cea7d2f76112 added record_ex_sel_eq_simproc
schirmer
parents: 14418
diff changeset
   308
    EX x. x = sel r to True (not enabled by default).
14255
e6e3e3f0deed Records:
schirmer
parents: 14254
diff changeset
   309
  - Tactic "record_split_simp_tac" to split and simplify records added.
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   310
14136
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   311
* 'specification' command added, allowing for definition by
14224
442c097c1437 Added info on the new 'finalconsts' command.
skalberg
parents: 14211
diff changeset
   312
  specification.  There is also an 'ax_specification' command that
442c097c1437 Added info on the new 'finalconsts' command.
skalberg
parents: 14211
diff changeset
   313
  introduces the new constants axiomatically.
14136
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   314
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parents: 14361
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   315
* arith(_tac) is now able to generate counterexamples for reals as well.
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parents: 14361
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   316
14399
dc677b35e54f New lemmas about inversion of restricted functions.
ballarin
parents: 14398
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   317
* HOL-Algebra: new locale "ring" for non-commutative rings.
dc677b35e54f New lemmas about inversion of restricted functions.
ballarin
parents: 14398
diff changeset
   318
14243
0e2ec694784d recursion
paulson
parents: 14237
diff changeset
   319
* HOL-ex: InductiveInvariant_examples illustrates advanced recursive function
14610
9c2e31e483b2 added HOL-Matrix, added HOL/Matrix/ROOT.ML
kleing
parents: 14606
diff changeset
   320
  definitions, thanks to Sava Krsti\'{c} and John Matthews.
9c2e31e483b2 added HOL-Matrix, added HOL/Matrix/ROOT.ML
kleing
parents: 14606
diff changeset
   321
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   322
* HOL-Matrix: a first theory for matrices in HOL with an application of
14610
9c2e31e483b2 added HOL-Matrix, added HOL/Matrix/ROOT.ML
kleing
parents: 14606
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   323
  matrix theory to linear programming.
14136
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   324
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   325
* Unions and Intersections:
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nipkow
parents: 14375
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   326
  The x-symbol output syntax of UN and INT has been changed
04b603a6f17d *** empty log message ***
nipkow
parents: 14375
diff changeset
   327
  from "\<Union>x \<in> A. B" to "\<Union\<^bsub>x \<in> A\<^esub> B"
04b603a6f17d *** empty log message ***
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parents: 14375
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   328
  i.e. the index formulae has become a subscript, like in normal math.
04b603a6f17d *** empty log message ***
nipkow
parents: 14375
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   329
  Similarly for "\<Union>x. B", and for \<Inter> instead of \<Union>.
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   330
  The subscript version is also accepted as input syntax.
04b603a6f17d *** empty log message ***
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parents: 14375
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   331
14418
b62323c85134 union/intersection over intervals
kleing
parents: 14401
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   332
* Unions and Intersections over Intervals:
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   333
  There is new short syntax "UN i<=n. A" for "UN i:{0..n}. A". There is
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   334
  also an x-symbol version with subscripts "\<Union>\<^bsub>i <= n\<^esub>. A"
14418
b62323c85134 union/intersection over intervals
kleing
parents: 14401
diff changeset
   335
  like in normal math, and corresponding versions for < and for intersection.
b62323c85134 union/intersection over intervals
kleing
parents: 14401
diff changeset
   336
14401
477380c74c1d removal of the legacy ML structure List
paulson
parents: 14399
diff changeset
   337
* ML: the legacy theory structures Int and List have been removed. They had
477380c74c1d removal of the legacy ML structure List
paulson
parents: 14399
diff changeset
   338
  conflicted with ML Basis Library structures having the same names.
14380
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parents: 14375
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   339
14464
webertj
parents: 14427
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   340
* 'refute' command added to search for (finite) countermodels.  Only works
webertj
parents: 14427
diff changeset
   341
  for a fragment of HOL.  The installation of an external SAT solver is
webertj
parents: 14427
diff changeset
   342
  highly recommended.  See "HOL/Refute.thy" for details.
webertj
parents: 14427
diff changeset
   343
14602
e06ded775eca Added entry for quickcheck command.
berghofe
parents: 14572
diff changeset
   344
* 'quickcheck' command: Allows to find counterexamples by evaluating
e06ded775eca Added entry for quickcheck command.
berghofe
parents: 14572
diff changeset
   345
  formulae under an assignment of free variables to random values.
e06ded775eca Added entry for quickcheck command.
berghofe
parents: 14572
diff changeset
   346
  In contrast to 'refute', it can deal with inductive datatypes,
e06ded775eca Added entry for quickcheck command.
berghofe
parents: 14572
diff changeset
   347
  but cannot handle quantifiers. See "HOL/ex/Quickcheck_Examples.thy"
e06ded775eca Added entry for quickcheck command.
berghofe
parents: 14572
diff changeset
   348
  for examples.
14464
webertj
parents: 14427
diff changeset
   349
14606
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   350
14536
43e436a4f293 added HOLCF/Streams.thy (with concatenation etc.)
oheimb
parents: 14508
diff changeset
   351
*** HOLCF ***
43e436a4f293 added HOLCF/Streams.thy (with concatenation etc.)
oheimb
parents: 14508
diff changeset
   352
43e436a4f293 added HOLCF/Streams.thy (with concatenation etc.)
oheimb
parents: 14508
diff changeset
   353
* Streams now come with concatenation and are part of the HOLCF image
43e436a4f293 added HOLCF/Streams.thy (with concatenation etc.)
oheimb
parents: 14508
diff changeset
   354
14572
wenzelm
parents: 14561
diff changeset
   355
wenzelm
parents: 14561
diff changeset
   356
14136
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   357
New in Isabelle2003 (May 2003)
14606
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   358
------------------------------
14136
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   359
13280
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents: 13190
diff changeset
   360
*** General ***
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents: 13190
diff changeset
   361
13618
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   362
* Provers/simplifier:
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   363
13781
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nipkow
parents: 13745
diff changeset
   364
  - Completely reimplemented method simp (ML: Asm_full_simp_tac):
13618
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   365
    Assumptions are now subject to complete mutual simplification,
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   366
    not just from left to right. The simplifier now preserves
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   367
    the order of assumptions.
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   368
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   369
    Potential INCOMPATIBILITY:
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   370
13781
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nipkow
parents: 13745
diff changeset
   371
    -- simp sometimes diverges where the old version did
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   372
       not, e.g. invoking simp on the goal
13618
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   373
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   374
        [| P (f x); y = x; f x = f y |] ==> Q
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   375
13781
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   376
       now gives rise to the infinite reduction sequence
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   377
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   378
        P(f x) --(f x = f y)--> P(f y) --(y = x)--> P(f x) --(f x = f y)--> ...
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   379
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   380
       Using "simp (asm_lr)" (ML: Asm_lr_simp_tac) instead often solves this
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   381
       kind of problem.
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   382
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   383
    -- Tactics combining classical reasoner and simplification (such as auto)
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   384
       are also affected by this change, because many of them rely on
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   385
       simp. They may sometimes diverge as well or yield a different numbers
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   386
       of subgoals. Try to use e.g. force, fastsimp, or safe instead of auto
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   387
       in case of problems. Sometimes subsequent calls to the classical
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   388
       reasoner will fail because a preceeding call to the simplifier too
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   389
       eagerly simplified the goal, e.g. deleted redundant premises.
13618
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   390
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   391
  - The simplifier trace now shows the names of the applied rewrite rules
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   392
13829
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   393
  - You can limit the number of recursive invocations of the simplifier
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   394
    during conditional rewriting (where the simplifie tries to solve the
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   395
    conditions before applying the rewrite rule):
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   396
    ML "simp_depth_limit := n"
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   397
    where n is an integer. Thus you can force termination where previously
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   398
    the simplifier would diverge.
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   399
13835
12b2ffbe543a Change to meta simplifier: congruence rules may now have frees as head of term.
ballarin
parents: 13829
diff changeset
   400
  - Accepts free variables as head terms in congruence rules.  Useful in Isar.
13829
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nipkow
parents: 13824
diff changeset
   401
13938
b033b53d0c1e Simplifier: congruence rule update.
ballarin
parents: 13899
diff changeset
   402
  - No longer aborts on failed congruence proof.  Instead, the
b033b53d0c1e Simplifier: congruence rule update.
ballarin
parents: 13899
diff changeset
   403
    congruence is ignored.
b033b53d0c1e Simplifier: congruence rule update.
ballarin
parents: 13899
diff changeset
   404
14008
f843528b9f3c Program extraction framework.
berghofe
parents: 13995
diff changeset
   405
* Pure: New generic framework for extracting programs from constructive
f843528b9f3c Program extraction framework.
berghofe
parents: 13995
diff changeset
   406
  proofs. See HOL/Extraction.thy for an example instantiation, as well
f843528b9f3c Program extraction framework.
berghofe
parents: 13995
diff changeset
   407
  as HOL/Extraction for some case studies.
f843528b9f3c Program extraction framework.
berghofe
parents: 13995
diff changeset
   408
13868
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nipkow
parents: 13835
diff changeset
   409
* Pure: The main goal of the proof state is no longer shown by default, only
01b516b64233 *** empty log message ***
nipkow
parents: 13835
diff changeset
   410
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
   411
   PG menu: Isabelle/Isar -> Settings -> Show Main Goal
13815
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   412
(ML: Proof.show_main_goal).
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   413
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   414
* Pure: You can find all matching introduction rules for subgoal 1, i.e. all
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   415
rules whose conclusion matches subgoal 1:
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   416
      PG menu: Isabelle/Isar -> Show me -> matching rules
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   417
The rules are ordered by how closely they match the subgoal.
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   418
In particular, rules that solve a subgoal outright are displayed first
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   419
(or rather last, the way they are printed).
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   420
(ML: ProofGeneral.print_intros())
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   421
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   422
* Pure: New flag trace_unify_fail causes unification to print
13781
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   423
diagnostic information (PG: in trace buffer) when it fails. This is
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   424
useful for figuring out why single step proofs like rule, erule or
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   425
assumption failed.
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   426
13815
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   427
* Pure: Locale specifications now produce predicate definitions
13410
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   428
according to the body of text (covering assumptions modulo local
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   429
definitions); predicate "loc_axioms" covers newly introduced text,
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   430
while "loc" is cumulative wrt. all included locale expressions; the
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   431
latter view is presented only on export into the global theory
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   432
context; potential INCOMPATIBILITY, use "(open)" option to fall back
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   433
on the old view without predicates;
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   434
13459
83f41b047a39 * Pure: predefined locales "var" and "struct" are useful for sharing
wenzelm
parents: 13443
diff changeset
   435
* 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
   436
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
   437
``var x + var y + struct M'' as import;
83f41b047a39 * Pure: predefined locales "var" and "struct" are useful for sharing
wenzelm
parents: 13443
diff changeset
   438
13463
07747943c626 * Provers: Simplifier.simproc(_i) now provide sane interface for
wenzelm
parents: 13459
diff changeset
   439
* 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
   440
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
   441
include local facts of proof configuration (also covers active
13541
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   442
locales), cover fixed variables in index; may use "_" in term
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   443
specification; an optional limit for the number of printed facts may
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   444
be given (the default is 40);
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   445
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   446
* Pure: disallow duplicate fact bindings within new-style theory files
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   447
(batch-mode only);
13540
aede0306e214 * Pure: disallow duplicate fact bindings within new-style theory files;
wenzelm
parents: 13522
diff changeset
   448
13463
07747943c626 * Provers: Simplifier.simproc(_i) now provide sane interface for
wenzelm
parents: 13459
diff changeset
   449
* Provers: improved induct method: assumptions introduced by case
07747943c626 * Provers: Simplifier.simproc(_i) now provide sane interface for
wenzelm
parents: 13459
diff changeset
   450
"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
   451
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
   452
13550
5a176b8dda84 removal of blast.overloaded
paulson
parents: 13549
diff changeset
   453
* Provers: the function blast.overloaded has been removed: all constants
5a176b8dda84 removal of blast.overloaded
paulson
parents: 13549
diff changeset
   454
are regarded as potentially overloaded, which improves robustness in exchange
5a176b8dda84 removal of blast.overloaded
paulson
parents: 13549
diff changeset
   455
for slight decrease in efficiency;
5a176b8dda84 removal of blast.overloaded
paulson
parents: 13549
diff changeset
   456
13781
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   457
* Provers/linorder: New generic prover for transitivity reasoning over
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   458
linear orders.  Note: this prover is not efficient!
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   459
13522
934fffeb6f38 * Isar: preview of problems to finish 'show' now produce an error
wenzelm
parents: 13518
diff changeset
   460
* 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
   461
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
   462
13280
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents: 13190
diff changeset
   463
13158
8e86582a90d1 *** empty log message ***
nipkow
parents: 13042
diff changeset
   464
*** HOL ***
8e86582a90d1 *** empty log message ***
nipkow
parents: 13042
diff changeset
   465
13899
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   466
* arith(_tac)
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   467
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   468
 - Produces a counter example if it cannot prove a goal.
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   469
   Note that the counter example may be spurious if the goal is not a formula
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   470
   of quantifier-free linear arithmetic.
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   471
   In ProofGeneral the counter example appears in the trace buffer.
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   472
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   473
 - 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
   474
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   475
 - Calls full Presburger arithmetic (by Amine Chaieb) if quantifier-free
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   476
   linear arithmetic fails. This takes account of quantifiers and divisibility.
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   477
   Presburger arithmetic can also be called explicitly via presburger(_tac).
13899
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   478
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   479
* simp's arithmetic capabilities have been enhanced a bit: it now
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   480
takes ~= in premises into account (by performing a case split);
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   481
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   482
* 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
   483
are distributed over a sum of terms;
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   484
13735
7de9342aca7a HOL-Algebra partially ported to Isar.
ballarin
parents: 13648
diff changeset
   485
* New tactic "trans_tac" and method "trans" instantiate
7de9342aca7a HOL-Algebra partially ported to Isar.
ballarin
parents: 13648
diff changeset
   486
Provers/linorder.ML for axclasses "order" and "linorder" (predicates
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   487
"<=", "<" and "=").
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   488
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   489
* function INCOMPATIBILITIES: Pi-sets have been redefined and moved from main
13587
659813a3f879 GroupTheory and FuncSet
paulson
parents: 13570
diff changeset
   490
HOL to Library/FuncSet; constant "Fun.op o" is now called "Fun.comp";
659813a3f879 GroupTheory and FuncSet
paulson
parents: 13570
diff changeset
   491
13443
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   492
* 'typedef' command has new option "open" to suppress the set
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   493
definition;
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   494
13522
934fffeb6f38 * Isar: preview of problems to finish 'show' now produce an error
wenzelm
parents: 13518
diff changeset
   495
* 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
   496
Finite_Set);
13492
6aae8eb39a18 *** empty log message ***
nipkow
parents: 13478
diff changeset
   497
13443
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   498
* attribute [symmetric] now works for relations as well; it turns
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   499
(x,y) : R^-1 into (y,x) : R, and vice versa;
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   500
13613
531f1f524848 *** empty log message ***
nipkow
parents: 13587
diff changeset
   501
* induct over a !!-quantified statement (say !!x1..xn):
531f1f524848 *** empty log message ***
nipkow
parents: 13587
diff changeset
   502
  each "case" automatically performs "fix x1 .. xn" with exactly those names.
531f1f524848 *** empty log message ***
nipkow
parents: 13587
diff changeset
   503
13899
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   504
* Map: `empty' is no longer a constant but a syntactic abbreviation for
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   505
%x. None. Warning: empty_def now refers to the previously hidden definition
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   506
of the empty set.
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   507
14018
3ef6c509f29c Improved entry on Algebra.
ballarin
parents: 14011
diff changeset
   508
* Algebra: formalization of classical algebra.  Intended as base for
3ef6c509f29c Improved entry on Algebra.
ballarin
parents: 14011
diff changeset
   509
any algebraic development in Isabelle.  Currently covers group theory
3ef6c509f29c Improved entry on Algebra.
ballarin
parents: 14011
diff changeset
   510
(up to Sylow's theorem) and ring theory (Universal Property of
3ef6c509f29c Improved entry on Algebra.
ballarin
parents: 14011
diff changeset
   511
Univariate Polynomials).  Contributions welcome;
13960
70f9158b6695 Complex, etc
paulson
parents: 13954
diff changeset
   512
70f9158b6695 Complex, etc
paulson
parents: 13954
diff changeset
   513
* GroupTheory: deleted, since its material has been moved to Algebra;
70f9158b6695 Complex, etc
paulson
parents: 13954
diff changeset
   514
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   515
* Complex: new directory of the complex numbers with numeric constants,
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   516
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
   517
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
   518
2160abf7cfe7 removal of the image HOL-Real and merging of HOL-Real-ex with HOL-Complex-ex
paulson
parents: 13960
diff changeset
   519
* 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
   520
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   521
* 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
   522
Fleuriot);
13960
70f9158b6695 Complex, etc
paulson
parents: 13954
diff changeset
   523
13549
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   524
* Real/HahnBanach: updated and adapted to locales;
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   525
13995
ab988a7a8a3b NEWS updated for HOL-Algebra.
ballarin
parents: 13966
diff changeset
   526
* NumberTheory: added Gauss's law of quadratic reciprocity (by Avigad,
ab988a7a8a3b NEWS updated for HOL-Algebra.
ballarin
parents: 13966
diff changeset
   527
Gray and Kramer);
13872
601514e63534 Gauss, UNITY, ZF
paulson
parents: 13868
diff changeset
   528
601514e63534 Gauss, UNITY, ZF
paulson
parents: 13868
diff changeset
   529
* UNITY: added the Meier-Sanders theory of progress sets;
601514e63534 Gauss, UNITY, ZF
paulson
parents: 13868
diff changeset
   530
14011
5fa103f5618c MicroJava LBV
kleing
parents: 14010
diff changeset
   531
* MicroJava: bytecode verifier and lightweight bytecode verifier
5fa103f5618c MicroJava LBV
kleing
parents: 14010
diff changeset
   532
as abstract algorithms, instantiated to the JVM;
5fa103f5618c MicroJava LBV
kleing
parents: 14010
diff changeset
   533
14010
schirmer
parents: 14008
diff changeset
   534
* Bali: Java source language formalization. Type system, operational
schirmer
parents: 14008
diff changeset
   535
semantics, axiomatic semantics. Supported language features:
schirmer
parents: 14008
diff changeset
   536
classes, interfaces, objects,virtual methods, static methods,
schirmer
parents: 14008
diff changeset
   537
static/instance fields, arrays, access modifiers, definite
schirmer
parents: 14008
diff changeset
   538
assignment, exceptions.
13549
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   539
14011
5fa103f5618c MicroJava LBV
kleing
parents: 14010
diff changeset
   540
13549
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   541
*** ZF ***
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   542
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   543
* ZF/Constructible: consistency proof for AC (Gödel's constructible
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   544
universe, etc.);
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   545
13872
601514e63534 Gauss, UNITY, ZF
paulson
parents: 13868
diff changeset
   546
* Main ZF: virtually all theories converted to new-style format;
13518
a0749ce05100 *** empty log message ***
nipkow
parents: 13500
diff changeset
   547
13280
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents: 13190
diff changeset
   548
13478
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   549
*** ML ***
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   550
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   551
* Pure: Tactic.prove provides sane interface for internal proofs;
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   552
omits the infamous "standard" operation, so this is more appropriate
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   553
than prove_goalw_cterm in many situations (e.g. in simprocs);
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   554
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   555
* Pure: improved error reporting of simprocs;
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   556
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   557
* Provers: Simplifier.simproc(_i) provides sane interface for setting
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   558
up simprocs;
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   559
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   560
13953
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   561
*** Document preparation ***
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   562
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   563
* uses \par instead of \\ for line breaks in theory text. This may
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   564
shift some page breaks in large documents. To get the old behaviour
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   565
use \renewcommand{\isanewline}{\mbox{}\\\mbox{}} in root.tex.
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   566
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   567
* minimized dependencies of isabelle.sty and isabellesym.sty on
13953
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   568
other packages
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   569
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   570
* \<euro> now needs package babel/greek instead of marvosym (which
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   571
broke \Rightarrow)
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   572
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   573
* normal size for \<zero>...\<nine> (uses \mathbf instead of
13954
2e989faba65a fixed \<0>..\<9> (-> \<zero>..\<nine>)
kleing
parents: 13953
diff changeset
   574
textcomp package)
13953
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   575
13280
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents: 13190
diff changeset
   576
14572
wenzelm
parents: 14561
diff changeset
   577
12984
6071200efbf6 fixed date;
wenzelm
parents: 12964
diff changeset
   578
New in Isabelle2002 (March 2002)
6071200efbf6 fixed date;
wenzelm
parents: 12964
diff changeset
   579
--------------------------------
11474
wenzelm
parents: 11437
diff changeset
   580
11572
wenzelm
parents: 11551
diff changeset
   581
*** Document preparation ***
wenzelm
parents: 11551
diff changeset
   582
11842
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   583
* greatly simplified document preparation setup, including more
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   584
graceful interpretation of isatool usedir -i/-d/-D options, and more
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   585
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
   586
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
   587
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
   588
"isatool usedir -D output HOL Test && isatool document Test/output";
11842
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   589
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   590
* theory dependency graph may now be incorporated into documents;
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   591
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
   592
with \includegraphics of LaTeX;
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   593
11864
371ce685b0ec * proper spacing of consecutive markup elements, especially text
wenzelm
parents: 11842
diff changeset
   594
* proper spacing of consecutive markup elements, especially text
371ce685b0ec * proper spacing of consecutive markup elements, especially text
wenzelm
parents: 11842
diff changeset
   595
blocks after section headings;
371ce685b0ec * proper spacing of consecutive markup elements, especially text
wenzelm
parents: 11842
diff changeset
   596
11572
wenzelm
parents: 11551
diff changeset
   597
* support bold style (for single symbols only), input syntax is like
wenzelm
parents: 11551
diff changeset
   598
this: "\<^bold>\<alpha>" or "\<^bold>A";
wenzelm
parents: 11551
diff changeset
   599
11814
wenzelm
parents: 11802
diff changeset
   600
* \<bullet> is now output as bold \cdot by default, which looks much
11572
wenzelm
parents: 11551
diff changeset
   601
better in printed text;
wenzelm
parents: 11551
diff changeset
   602
11712
deb8cac87063 * added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
wenzelm
parents: 11702
diff changeset
   603
* added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
deb8cac87063 * added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
wenzelm
parents: 11702
diff changeset
   604
note that these symbols are currently unavailable in Proof General /
12769
wenzelm
parents: 12754
diff changeset
   605
X-Symbol; new symbols \<zero>, \<one>, ..., \<nine>, and \<euro>;
12690
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
   606
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
   607
* isatool latex no longer depends on changed TEXINPUTS, instead
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
   608
isatool document copies the Isabelle style files to the target
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
   609
location;
11712
deb8cac87063 * added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
wenzelm
parents: 11702
diff changeset
   610
11572
wenzelm
parents: 11551
diff changeset
   611
11633
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   612
*** Isar ***
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   613
12312
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   614
* Pure/Provers: improved proof by cases and induction;
12280
wenzelm
parents: 12253
diff changeset
   615
  - 'case' command admits impromptu naming of parameters (such as
wenzelm
parents: 12253
diff changeset
   616
    "case (Suc n)");
wenzelm
parents: 12253
diff changeset
   617
  - 'induct' method divinates rule instantiation from the inductive
wenzelm
parents: 12253
diff changeset
   618
    claim; no longer requires excessive ?P bindings for proper
wenzelm
parents: 12253
diff changeset
   619
    instantiation of cases;
wenzelm
parents: 12253
diff changeset
   620
  - 'induct' method properly enumerates all possibilities of set/type
wenzelm
parents: 12253
diff changeset
   621
    rules; as a consequence facts may be also passed through *type*
wenzelm
parents: 12253
diff changeset
   622
    rules without further ado;
wenzelm
parents: 12253
diff changeset
   623
  - 'induct' method now derives symbolic cases from the *rulified*
wenzelm
parents: 12253
diff changeset
   624
    rule (before it used to rulify cases stemming from the internal
wenzelm
parents: 12253
diff changeset
   625
    atomized version); this means that the context of a non-atomic
wenzelm
parents: 12253
diff changeset
   626
    statement becomes is included in the hypothesis, avoiding the
wenzelm
parents: 12253
diff changeset
   627
    slightly cumbersome show "PROP ?case" form;
wenzelm
parents: 12253
diff changeset
   628
  - 'induct' may now use elim-style induction rules without chaining
wenzelm
parents: 12253
diff changeset
   629
    facts, using ``missing'' premises from the goal state; this allows
wenzelm
parents: 12253
diff changeset
   630
    rules stemming from inductive sets to be applied in unstructured
wenzelm
parents: 12253
diff changeset
   631
    scripts, while still benefitting from proper handling of non-atomic
wenzelm
parents: 12253
diff changeset
   632
    statements; NB: major inductive premises need to be put first, all
wenzelm
parents: 12253
diff changeset
   633
    the rest of the goal is passed through the induction;
wenzelm
parents: 12253
diff changeset
   634
  - 'induct' proper support for mutual induction involving non-atomic
wenzelm
parents: 12253
diff changeset
   635
    rule statements (uses the new concept of simultaneous goals, see
wenzelm
parents: 12253
diff changeset
   636
    below);
12853
de505273c971 Isar cases/induct: no backtracking;
wenzelm
parents: 12850
diff changeset
   637
  - append all possible rule selections, but only use the first
de505273c971 Isar cases/induct: no backtracking;
wenzelm
parents: 12850
diff changeset
   638
    success (no backtracking);
11995
4a622f5fb164 - 'induct' may now use elim-style induction rules without chaining
wenzelm
parents: 11986
diff changeset
   639
  - 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
   640
  - 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
   641
  - 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
   642
    General versions);
11995
4a622f5fb164 - 'induct' may now use elim-style induction rules without chaining
wenzelm
parents: 11986
diff changeset
   643
  - 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
   644
  - 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
   645
12163
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   646
* Pure: support multiple simultaneous goal statements, for example
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   647
"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
   648
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
   649
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
   650
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
   651
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
   652
fails:
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   653
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   654
  assume "A & B" then have A and B ..   (*".." fails*)
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   655
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   656
better use "obtain" in situations as above; alternative refer to
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   657
multi-step methods like 'auto', 'simp_all', 'blast+' etc.;
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   658
12078
4eb8061286e5 * Isar/Pure: proper integration with ``locales''; unlike the original
wenzelm
parents: 12034
diff changeset
   659
* Pure: proper integration with ``locales''; unlike the original
12210
2f510d8d8291 * ZF: new-style theory commands '(co)inductive', '(co)datatype',
wenzelm
parents: 12177
diff changeset
   660
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
   661
contexts rather than raw logical ones (e.g. we admit to include
12280
wenzelm
parents: 12253
diff changeset
   662
attributes everywhere); operations on locales include merge and
12964
wenzelm
parents: 12924
diff changeset
   663
rename; support for implicit arguments (``structures''); simultaneous
wenzelm
parents: 12924
diff changeset
   664
type-inference over imports and text; see also HOL/ex/Locales.thy for
wenzelm
parents: 12924
diff changeset
   665
some examples;
12078
4eb8061286e5 * Isar/Pure: proper integration with ``locales''; unlike the original
wenzelm
parents: 12034
diff changeset
   666
12707
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   667
* Pure: the following commands have been ``localized'', supporting a
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   668
target locale specification "(in name)": 'lemma', 'theorem',
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   669
'corollary', 'lemmas', 'theorems', 'declare'; the results will be
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   670
stored both within the locale and at the theory level (exported and
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   671
qualified by the locale name);
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   672
12964
wenzelm
parents: 12924
diff changeset
   673
* Pure: theory goals may now be specified in ``long'' form, with
wenzelm
parents: 12924
diff changeset
   674
ad-hoc contexts consisting of arbitrary locale elements. for example
wenzelm
parents: 12924
diff changeset
   675
``lemma foo: fixes x assumes "A x" shows "B x"'' (local syntax and
wenzelm
parents: 12924
diff changeset
   676
definitions may be given, too); the result is a meta-level rule with
wenzelm
parents: 12924
diff changeset
   677
the context elements being discharged in the obvious way;
wenzelm
parents: 12924
diff changeset
   678
wenzelm
parents: 12924
diff changeset
   679
* Pure: new proof command 'using' allows to augment currently used
wenzelm
parents: 12924
diff changeset
   680
facts after a goal statement ('using' is syntactically analogous to
wenzelm
parents: 12924
diff changeset
   681
'apply', but acts on the goal's facts only); this allows chained facts
wenzelm
parents: 12924
diff changeset
   682
to be separated into parts given before and after a claim, as in
wenzelm
parents: 12924
diff changeset
   683
``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
   684
11722
78cf55fd57c6 * Isar/Pure: fixed 'token_translation' command;
wenzelm
parents: 11712
diff changeset
   685
* Pure: renamed "antecedent" case to "rule_context";
78cf55fd57c6 * Isar/Pure: fixed 'token_translation' command;
wenzelm
parents: 11712
diff changeset
   686
12964
wenzelm
parents: 12924
diff changeset
   687
* Pure: new 'judgment' command records explicit information about the
wenzelm
parents: 12924
diff changeset
   688
object-logic embedding (used by several tools internally); no longer
wenzelm
parents: 12924
diff changeset
   689
use hard-wired "Trueprop";
wenzelm
parents: 12924
diff changeset
   690
11738
7c7a902a5c65 * Pure: added 'corollary' command;
wenzelm
parents: 11722
diff changeset
   691
* Pure: added 'corollary' command;
7c7a902a5c65 * Pure: added 'corollary' command;
wenzelm
parents: 11722
diff changeset
   692
11722
78cf55fd57c6 * Isar/Pure: fixed 'token_translation' command;
wenzelm
parents: 11712
diff changeset
   693
* Pure: fixed 'token_translation' command;
78cf55fd57c6 * Isar/Pure: fixed 'token_translation' command;
wenzelm
parents: 11712
diff changeset
   694
11899
e543b0f01a58 * Pure: removed obsolete 'exported' attribute;
wenzelm
parents: 11864
diff changeset
   695
* Pure: removed obsolete 'exported' attribute;
e543b0f01a58 * Pure: removed obsolete 'exported' attribute;
wenzelm
parents: 11864
diff changeset
   696
11933
wenzelm
parents: 11930
diff changeset
   697
* Pure: dummy pattern "_" in is/let is now automatically lifted over
wenzelm
parents: 11930
diff changeset
   698
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
   699
supersedes more cumbersome ... (is "ALL x. _ x --> ?C x");
e543b0f01a58 * Pure: removed obsolete 'exported' attribute;
wenzelm
parents: 11864
diff changeset
   700
11952
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
   701
* 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
   702
statements (atomic meta-level propositions); setup controlled via
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
   703
rewrite rules declarations of 'atomize' attribute; example
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
   704
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
   705
proof *scripts*;
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
   706
12106
4a8558dbb6a0 * Isar/Pure: emulation of instantiation tactics (rule_tac, cut_tac,
wenzelm
parents: 12078
diff changeset
   707
* 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
   708
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
   709
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
   710
especially important for locales);
4a8558dbb6a0 * Isar/Pure: emulation of instantiation tactics (rule_tac, cut_tac,
wenzelm
parents: 12078
diff changeset
   711
12312
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   712
* 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
   713
mode;
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   714
12405
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   715
* Pure/obtain: the formal conclusion "thesis", being marked as
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   716
``internal'', may no longer be reference directly in the text;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   717
potential INCOMPATIBILITY, may need to use "?thesis" in rare
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   718
situations;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   719
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   720
* Pure: generic 'sym' attribute which declares a rule both as pure
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   721
'elim?' and for the 'symmetric' operation;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   722
12877
b9635eb8a448 * Isar/Pure: marginal comments ``--'' may now occur just anywhere in the text;
wenzelm
parents: 12853
diff changeset
   723
* 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
   724
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
   725
discontinued;
b9635eb8a448 * Isar/Pure: marginal comments ``--'' may now occur just anywhere in the text;
wenzelm
parents: 12853
diff changeset
   726
13023
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
   727
* 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
   728
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
   729
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
   730
12364
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   731
* Pure/Provers/classical: simplified integration with pure rule
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   732
attributes and methods; the classical "intro?/elim?/dest?"
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   733
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
   734
includes classically swapped intros; "intro" and "elim" methods no
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   735
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
   736
AddXIs/AddXEs/AddXDs; all of this has some potential for
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   737
INCOMPATIBILITY;
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   738
12405
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   739
* Provers/classical: attribute 'swapped' produces classical inversions
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   740
of introduction rules;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   741
12364
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   742
* Provers/simplifier: 'simplified' attribute may refer to explicit
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   743
rules instead of full simplifier context; 'iff' attribute handles
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   744
conditional rules;
11936
fef099613354 * Provers: 'simplified' attribute may refer to explicit rules instead
wenzelm
parents: 11933
diff changeset
   745
11745
06cd8c3b5487 * HOL: 'typedef' now allows alternative names for Rep/Abs morphisms;
wenzelm
parents: 11738
diff changeset
   746
* 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
   747
11690
cb64368fb405 improved proof by cases and induction;
wenzelm
parents: 11663
diff changeset
   748
* HOL: 'recdef' now fails on unfinished automated proofs, use
11633
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   749
"(permissive)" option to recover old behavior;
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   750
11933
wenzelm
parents: 11930
diff changeset
   751
* HOL: 'inductive' no longer features separate (collective) attributes
wenzelm
parents: 11930
diff changeset
   752
for 'intros' (was found too confusing);
wenzelm
parents: 11930
diff changeset
   753
12405
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   754
* HOL: properly declared induction rules less_induct and
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   755
wf_induct_rule;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   756
11788
60054fee3c16 canonical 'cases'/'induct' rules for n-tuples (n=3..7)
kleing
parents: 11745
diff changeset
   757
11474
wenzelm
parents: 11437
diff changeset
   758
*** HOL ***
wenzelm
parents: 11437
diff changeset
   759
11702
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   760
* HOL: moved over to sane numeral syntax; the new policy is as
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   761
follows:
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   762
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   763
  - 0 and 1 are polymorphic constants, which are defined on any
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   764
  numeric type (nat, int, real etc.);
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   765
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   766
  - 2, 3, 4, ... and -1, -2, -3, ... are polymorphic numerals, based
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   767
  binary representation internally;
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   768
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   769
  - type nat has special constructor Suc, and generally prefers Suc 0
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   770
  over 1::nat and Suc (Suc 0) over 2::nat;
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   771
12364
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   772
This change may cause significant problems of INCOMPATIBILITY; here
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   773
are some hints on converting existing sources:
11702
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   774
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   775
  - due to the new "num" token, "-0" and "-1" etc. are now atomic
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   776
  entities, so expressions involving "-" (unary or binary minus) need
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   777
  to be spaced properly;
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   778
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   779
  - existing occurrences of "1" may need to be constraint "1::nat" or
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   780
  even replaced by Suc 0; similar for old "2";
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   781
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   782
  - replace "#nnn" by "nnn", and "#-nnn" by "-nnn";
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   783
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   784
  - remove all special provisions on numerals in proofs;
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   785
13042
wenzelm
parents: 13025
diff changeset
   786
* HOL: simp rules nat_number expand numerals on nat to Suc/0
12837
74ce01905e57 * HOL: nat_number_of;
wenzelm
parents: 12832
diff changeset
   787
representation (depends on bin_arith_simps in the default context);
74ce01905e57 * HOL: nat_number_of;
wenzelm
parents: 12832
diff changeset
   788
12736
80f10551fb59 * HOL: symbolic syntax for x^2 (numeral 2);
wenzelm
parents: 12734
diff changeset
   789
* HOL: symbolic syntax for x^2 (numeral 2);
80f10551fb59 * HOL: symbolic syntax for x^2 (numeral 2);
wenzelm
parents: 12734
diff changeset
   790
12335
db4d5f498742 * HOL: the class of all HOL types is now called "type" rather than
wenzelm
parents: 12312
diff changeset
   791
* 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
   792
"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
   793
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
   794
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
   795
"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
   796
12280
wenzelm
parents: 12253
diff changeset
   797
* HOL/record package improvements:
wenzelm
parents: 12253
diff changeset
   798
  - new derived operations "fields" to build a partial record section,
wenzelm
parents: 12253
diff changeset
   799
    "extend" to promote a fixed record to a record scheme, and
wenzelm
parents: 12253
diff changeset
   800
    "truncate" for the reverse; cf. theorems "xxx.defs", which are *not*
wenzelm
parents: 12253
diff changeset
   801
    declared as simp by default;
12587
3f3d2ffb5df5 HOL/record: shared operations ("more", "fields", etc.) now need to be
wenzelm
parents: 12564
diff changeset
   802
  - 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
   803
    qualified) --- potential INCOMPATIBILITY;
12280
wenzelm
parents: 12253
diff changeset
   804
  - removed "make_scheme" operations (use "make" with "extend") --
wenzelm
parents: 12253
diff changeset
   805
    INCOMPATIBILITY;
11937
2a2b1182a23b * HOL/record:
wenzelm
parents: 11936
diff changeset
   806
  - removed "more" class (simply use "term") -- INCOMPATIBILITY;
12253
1886dc96b7e9 * HOL/record: cases/induct for more parts;
wenzelm
parents: 12245
diff changeset
   807
  - provides cases/induct rules for use with corresponding Isar
1886dc96b7e9 * HOL/record: cases/induct for more parts;
wenzelm
parents: 12245
diff changeset
   808
    methods (for concrete records, record schemes, concrete more
12280
wenzelm
parents: 12253
diff changeset
   809
    parts, and schematic more parts -- in that order);
11930
1accec985349 * HOL/record:
wenzelm
parents: 11921
diff changeset
   810
  - internal definitions directly based on a light-weight abstract
1accec985349 * HOL/record:
wenzelm
parents: 11921
diff changeset
   811
    theory of product types over typedef rather than datatype;
1accec985349 * HOL/record:
wenzelm
parents: 11921
diff changeset
   812
13023
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
   813
* 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
   814
specifications; specific support for HOL constructs such as inductive
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
   815
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
   816
via 'generate_code' theory section;
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
   817
11933
wenzelm
parents: 11930
diff changeset
   818
* HOL: canonical cases/induct rules for n-tuples (n = 3..7);
wenzelm
parents: 11930
diff changeset
   819
13824
e4d8dea6dfc2 minor updates to pre-2002 release
paulson
parents: 13815
diff changeset
   820
* HOL: consolidated and renamed several theories.  In particular:
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   821
        Ord.thy has been absorbed into HOL.thy
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   822
        String.thy has been absorbed into List.thy
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   823
11802
1d5f5d2427d2 * HOL: concrete setsum syntax "\<Sum>i:A. b" == "setsum (%i. b) A"
wenzelm
parents: 11797
diff changeset
   824
* 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
   825
(beware of argument permutation!);
1d5f5d2427d2 * HOL: concrete setsum syntax "\<Sum>i:A. b" == "setsum (%i. b) A"
wenzelm
parents: 11797
diff changeset
   826
11657
03c4a5c08a79 *** empty log message ***
wenzelm
parents: 11633
diff changeset
   827
* HOL: linorder_less_split superseded by linorder_cases;
03c4a5c08a79 *** empty log message ***
wenzelm
parents: 11633
diff changeset
   828
12917
0fd3caa5d8b2 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12899
diff changeset
   829
* HOL/List: "nodups" renamed to "distinct";
12889
1de4f0b824a8 *** empty log message ***
nipkow
parents: 12877
diff changeset
   830
11633
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   831
* HOL: added "The" definite description operator; move Hilbert's "Eps"
13824
e4d8dea6dfc2 minor updates to pre-2002 release
paulson
parents: 13815
diff changeset
   832
to peripheral theory "Hilbert_Choice"; some INCOMPATIBILITIES:
e4d8dea6dfc2 minor updates to pre-2002 release
paulson
parents: 13815
diff changeset
   833
  - Ex_def has changed, now need to use some_eq_ex
11437
2338bce575ae HOL: added "The";
wenzelm
parents: 11397
diff changeset
   834
11572
wenzelm
parents: 11551
diff changeset
   835
* HOL: made split_all_tac safe; EXISTING PROOFS MAY FAIL OR LOOP, so
wenzelm
parents: 11551
diff changeset
   836
in this (rare) case use:
wenzelm
parents: 11551
diff changeset
   837
wenzelm
parents: 11551
diff changeset
   838
  delSWrapper "split_all_tac"
wenzelm
parents: 11551
diff changeset
   839
  addSbefore ("unsafe_split_all_tac", unsafe_split_all_tac)
wenzelm
parents: 11551
diff changeset
   840
wenzelm
parents: 11551
diff changeset
   841
* HOL: added safe wrapper "split_conv_tac" to claset; EXISTING PROOFS
11474
wenzelm
parents: 11437
diff changeset
   842
MAY FAIL;
11361
879e53d92f51 *** empty log message ***
nipkow
parents: 11314
diff changeset
   843
11572
wenzelm
parents: 11551
diff changeset
   844
* HOL: introduced f^n = f o ... o f; warning: due to the limits of
wenzelm
parents: 11551
diff changeset
   845
Isabelle's type classes, ^ on functions and relations has too general
wenzelm
parents: 11551
diff changeset
   846
a domain, namely ('a * 'b) set and 'a => 'b; this means that it may be
wenzelm
parents: 11551
diff changeset
   847
necessary to attach explicit type constraints;
11307
891fbd3f4881 *** empty log message ***
nipkow
parents: 11241
diff changeset
   848
12917
0fd3caa5d8b2 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12899
diff changeset
   849
* HOL/Relation: the prefix name of the infix "O" has been changed from
0fd3caa5d8b2 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12899
diff changeset
   850
"comp" to "rel_comp"; INCOMPATIBILITY: a few theorems have been
0fd3caa5d8b2 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12899
diff changeset
   851
renamed accordingly (eg "compI" -> "rel_compI").
12489
c92e38c3cbaa *** empty log message ***
nipkow
parents: 12472
diff changeset
   852
11487
95071c9e85a3 * HOL: syntax translations now work properly with numerals and records
wenzelm
parents: 11475
diff changeset
   853
* 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
   854
expressions;
11474
wenzelm
parents: 11437
diff changeset
   855
12457
cbfc53e45476 * HOL: bounded abstraction now uses syntax "%" / "\<lambda>" instead
wenzelm
parents: 12405
diff changeset
   856
* HOL: bounded abstraction now uses syntax "%" / "\<lambda>" instead
cbfc53e45476 * HOL: bounded abstraction now uses syntax "%" / "\<lambda>" instead
wenzelm
parents: 12405
diff changeset
   857
of "lam" -- INCOMPATIBILITY;
11474
wenzelm
parents: 11437
diff changeset
   858
11933
wenzelm
parents: 11930
diff changeset
   859
* HOL: got rid of some global declarations (potential INCOMPATIBILITY
wenzelm
parents: 11930
diff changeset
   860
for ML tools): const "()" renamed "Product_Type.Unity", type "unit"
wenzelm
parents: 11930
diff changeset
   861
renamed "Product_Type.unit";
11611
b0c69f4db64c HOL: eliminated global items;
wenzelm
parents: 11572
diff changeset
   862
12564
226873bffa3a *** empty log message ***
nipkow
parents: 12563
diff changeset
   863
* HOL: renamed rtrancl_into_rtrancl2 to converse_rtrancl_into_rtrancl
226873bffa3a *** empty log message ***
nipkow
parents: 12563
diff changeset
   864
12924
02eb40cde931 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12917
diff changeset
   865
* HOL: removed obsolete theorem "optionE" (use "option.exhaust", or
02eb40cde931 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12917
diff changeset
   866
the "cases" method);
02eb40cde931 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12917
diff changeset
   867
12597
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
   868
* 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
   869
Florian Kammüller);
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
   870
12608
2df381faa787 * ZF/IMP: updated and converted to new-style theory format;
wenzelm
parents: 12597
diff changeset
   871
* 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
   872
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
   873
some explanations (by Gerwin Klein);
12597
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
   874
12734
c5f6d8259ecd HOL-Real/Complex_Numbers;
wenzelm
parents: 12728
diff changeset
   875
* HOL-Real: added Complex_Numbers (by Gertrud Bauer);
c5f6d8259ecd HOL-Real/Complex_Numbers;
wenzelm
parents: 12728
diff changeset
   876
12690
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
   877
* HOL-Hyperreal is now a logic image;
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
   878
11611
b0c69f4db64c HOL: eliminated global items;
wenzelm
parents: 11572
diff changeset
   879
12022
9c3377b133c0 HOLCF: proper rep_datatype lift (see theory Lift); use plain induct_tac
wenzelm
parents: 11995
diff changeset
   880
*** HOLCF ***
9c3377b133c0 HOLCF: proper rep_datatype lift (see theory Lift); use plain induct_tac
wenzelm
parents: 11995
diff changeset
   881
12622
wenzelm
parents: 12608
diff changeset
   882
* Isar: consts/constdefs supports mixfix syntax for continuous
wenzelm
parents: 12608
diff changeset
   883
operations;
wenzelm
parents: 12608
diff changeset
   884
wenzelm
parents: 12608
diff changeset
   885
* Isar: domain package adapted to new-style theory format, e.g. see
wenzelm
parents: 12608
diff changeset
   886
HOLCF/ex/Dnat.thy;
wenzelm
parents: 12608
diff changeset
   887
wenzelm
parents: 12608
diff changeset
   888
* theory Lift: proper use of rep_datatype lift instead of ML hacks --
12280
wenzelm
parents: 12253
diff changeset
   889
potential INCOMPATIBILITY; now use plain induct_tac instead of former
wenzelm
parents: 12253
diff changeset
   890
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
   891
12597
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
   892
* 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
   893
12022
9c3377b133c0 HOLCF: proper rep_datatype lift (see theory Lift); use plain induct_tac
wenzelm
parents: 11995
diff changeset
   894
11474
wenzelm
parents: 11437
diff changeset
   895
*** ZF ***
wenzelm
parents: 11437
diff changeset
   896
12622
wenzelm
parents: 12608
diff changeset
   897
* Isar: proper integration of logic-specific tools and packages,
wenzelm
parents: 12608
diff changeset
   898
including theory commands '(co)inductive', '(co)datatype',
wenzelm
parents: 12608
diff changeset
   899
'rep_datatype', 'inductive_cases', as well as methods 'ind_cases',
wenzelm
parents: 12608
diff changeset
   900
'induct_tac', 'case_tac', and 'typecheck' (with attribute 'TC');
wenzelm
parents: 12608
diff changeset
   901
wenzelm
parents: 12608
diff changeset
   902
* theory Main no longer includes AC; for the Axiom of Choice, base
wenzelm
parents: 12608
diff changeset
   903
your theory on Main_ZFC;
wenzelm
parents: 12608
diff changeset
   904
wenzelm
parents: 12608
diff changeset
   905
* the integer library now covers quotients and remainders, with many
wenzelm
parents: 12608
diff changeset
   906
laws relating division to addition, multiplication, etc.;
12563
3813bcab493d ZF/Main
paulson
parents: 12538
diff changeset
   907
12280
wenzelm
parents: 12253
diff changeset
   908
* ZF/UNITY: Chandy and Misra's UNITY is now available in ZF, giving a
wenzelm
parents: 12253
diff changeset
   909
typeless version of the formalism;
wenzelm
parents: 12253
diff changeset
   910
13025
wenzelm
parents: 13023
diff changeset
   911
* ZF/AC, Coind, IMP, Resid: updated and converted to new-style theory
wenzelm
parents: 13023
diff changeset
   912
format;
12608
2df381faa787 * ZF/IMP: updated and converted to new-style theory format;
wenzelm
parents: 12597
diff changeset
   913
12280
wenzelm
parents: 12253
diff changeset
   914
* 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
   915
including theory Multiset for multiset orderings; converted to
2df381faa787 * ZF/IMP: updated and converted to new-style theory format;
wenzelm
parents: 12597
diff changeset
   916
new-style theory format;
12177
b1c16d685a99 * ZF: new-style theory commands 'inductive', 'inductive_cases', and
wenzelm
parents: 12163
diff changeset
   917
13025
wenzelm
parents: 13023
diff changeset
   918
* ZF: many new theorems about lists, ordinals, etc.;
12850
paulson
parents: 12837
diff changeset
   919
11474
wenzelm
parents: 11437
diff changeset
   920
wenzelm
parents: 11437
diff changeset
   921
*** General ***
wenzelm
parents: 11437
diff changeset
   922
12280
wenzelm
parents: 12253
diff changeset
   923
* Pure/kernel: meta-level proof terms (by Stefan Berghofer); reference
wenzelm
parents: 12253
diff changeset
   924
variable proof controls level of detail: 0 = no proofs (only oracle
wenzelm
parents: 12253
diff changeset
   925
dependencies), 1 = lemma dependencies, 2 = compact proof terms; see
wenzelm
parents: 12253
diff changeset
   926
also ref manual for further ML interfaces;
wenzelm
parents: 12253
diff changeset
   927
wenzelm
parents: 12253
diff changeset
   928
* Pure/axclass: removed obsolete ML interface
wenzelm
parents: 12253
diff changeset
   929
goal_subclass/goal_arity;
wenzelm
parents: 12253
diff changeset
   930
wenzelm
parents: 12253
diff changeset
   931
* Pure/syntax: new token syntax "num" for plain numerals (without "#"
wenzelm
parents: 12253
diff changeset
   932
of "xnum"); potential INCOMPATIBILITY, since -0, -1 etc. are now
wenzelm
parents: 12253
diff changeset
   933
separate tokens, so expressions involving minus need to be spaced
wenzelm
parents: 12253
diff changeset
   934
properly;
wenzelm
parents: 12253
diff changeset
   935
12312
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   936
* 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
   937
rather than "infixl" or "infixr";
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   938
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   939
* 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
   940
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
   941
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
   942
type variable);
12280
wenzelm
parents: 12253
diff changeset
   943
wenzelm
parents: 12253
diff changeset
   944
* Pure/syntax: print modes "type_brackets" and "no_type_brackets"
wenzelm
parents: 12253
diff changeset
   945
control output of nested => (types); the default behavior is
wenzelm
parents: 12253
diff changeset
   946
"type_brackets";
wenzelm
parents: 12253
diff changeset
   947
wenzelm
parents: 12253
diff changeset
   948
* Pure/syntax: builtin parse translation for "_constify" turns valued
11817
wenzelm
parents: 11814
diff changeset
   949
tokens into AST constants;
11474
wenzelm
parents: 11437
diff changeset
   950
12280
wenzelm
parents: 12253
diff changeset
   951
* Pure/syntax: prefer later declarations of translations and print
wenzelm
parents: 12253
diff changeset
   952
translation functions; potential INCOMPATIBILITY: need to reverse
wenzelm
parents: 12253
diff changeset
   953
multiple declarations for same syntax element constant;
wenzelm
parents: 12253
diff changeset
   954
12832
c31b44286a8a * Pure/show_hyps reset by default (in accordance to existing Isar practice);
wenzelm
parents: 12777
diff changeset
   955
* 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
   956
practice);
c31b44286a8a * Pure/show_hyps reset by default (in accordance to existing Isar practice);
wenzelm
parents: 12777
diff changeset
   957
12280
wenzelm
parents: 12253
diff changeset
   958
* Provers/classical: renamed addaltern to addafter, addSaltern to
wenzelm
parents: 12253
diff changeset
   959
addSafter;
wenzelm
parents: 12253
diff changeset
   960
wenzelm
parents: 12253
diff changeset
   961
* Provers/clasimp: ``iff'' declarations now handle conditional rules
wenzelm
parents: 12253
diff changeset
   962
as well;
12253
1886dc96b7e9 * HOL/record: cases/induct for more parts;
wenzelm
parents: 12245
diff changeset
   963
12538
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
   964
* system: tested support for MacOS X; should be able to get Isabelle +
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
   965
Proof General to work in a plain Terminal after installing Poly/ML
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
   966
(e.g. from the Isabelle distribution area) and GNU bash alone
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
   967
(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
   968
support requires further installations, e.g. from
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
   969
http://fink.sourceforge.net/);
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
   970
12280
wenzelm
parents: 12253
diff changeset
   971
* 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
   972
12753
3a62df7ae926 * system: reduced base memory usage by Poly/ML (approx. 20 MB instead
wenzelm
parents: 12736
diff changeset
   973
* 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
   974
of 40 MB), cf. ML_OPTIONS;
3a62df7ae926 * system: reduced base memory usage by Poly/ML (approx. 20 MB instead
wenzelm
parents: 12736
diff changeset
   975
11633
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   976
* system: Proof General keywords specification is now part of the
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   977
Isabelle distribution (see etc/isar-keywords.el);
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   978
12728
wenzelm
parents: 12724
diff changeset
   979
* system: support for persistent Proof General sessions (refrain from
wenzelm
parents: 12724
diff changeset
   980
outdating all loaded theories on startup); user may create writable
wenzelm
parents: 12724
diff changeset
   981
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
   982
11551
8b5064d1c5c9 * system: support Poly/ML 4.1.1 (large heaps);
wenzelm
parents: 11549
diff changeset
   983
* system: smart selection of Isabelle process versus Isabelle
11572
wenzelm
parents: 11551
diff changeset
   984
interface, accommodates case-insensitive file systems (e.g. HFS+); may
wenzelm
parents: 11551
diff changeset
   985
run both "isabelle" and "Isabelle" even if file names are badly
wenzelm
parents: 11551
diff changeset
   986
damaged (executable inspects the case of the first letter of its own
wenzelm
parents: 11551
diff changeset
   987
name); added separate "isabelle-process" and "isabelle-interface";
11551
8b5064d1c5c9 * system: support Poly/ML 4.1.1 (large heaps);
wenzelm
parents: 11549
diff changeset
   988
12472
wenzelm
parents: 12467
diff changeset
   989
* system: refrain from any attempt at filtering input streams; no
wenzelm
parents: 12467
diff changeset
   990
longer support ``8bit'' encoding of old isabelle font, instead proper
wenzelm
parents: 12467
diff changeset
   991
iso-latin characters may now be used; the related isatools
wenzelm
parents: 12467
diff changeset
   992
"symbolinput" and "nonascii" have disappeared as well;
wenzelm
parents: 12467
diff changeset
   993
wenzelm
parents: 12467
diff changeset
   994
* system: removed old "xterm" interface (the print modes "xterm" and
wenzelm
parents: 12467
diff changeset
   995
"xterm_color" are still available for direct use in a suitable
wenzelm
parents: 12467
diff changeset
   996
terminal);
wenzelm
parents: 12467
diff changeset
   997
11314
f6eebbbed449 ZF: division
paulson
parents: 11307
diff changeset
   998
11169
98c2f741e32b made split_all_tac safe introducing safe_full_simp_tac, EXISTING PROOFS MAY FAIL
oheimb
parents: 11130
diff changeset
   999
11062
wenzelm
parents: 11050
diff changeset
  1000
New in Isabelle99-2 (February 2001)
wenzelm
parents: 11050
diff changeset
  1001
-----------------------------------
wenzelm
parents: 11050
diff changeset
  1002
10224
7263c856787e *** empty log message ***
nipkow
parents: 10164
diff changeset
  1003
*** Overview of INCOMPATIBILITIES ***
7263c856787e *** empty log message ***
nipkow
parents: 10164
diff changeset
  1004
11241
61b21aacf04a Isar hint
paulson
parents: 11181
diff changeset
  1005
* HOL: please note that theories in the Library and elsewhere often use the
61b21aacf04a Isar hint
paulson
parents: 11181
diff changeset
  1006
new-style (Isar) format; to refer to their theorems in an ML script you must
12622
wenzelm
parents: 12608
diff changeset
  1007
bind them to ML identifers by e.g.      val thm_name = thm "thm_name";
11241
61b21aacf04a Isar hint
paulson
parents: 11181
diff changeset
  1008
11043
2e3bbac8763b HOL: inductive package no longer splits induction rule aggressively,
wenzelm
parents: 11016
diff changeset
  1009
* HOL: inductive package no longer splits induction rule aggressively,
2e3bbac8763b HOL: inductive package no longer splits induction rule aggressively,
wenzelm
parents: 11016
diff changeset
  1010
but only as far as specified by the introductions given; the old
11130
d14fd58615b9 added missiong word
oheimb
parents: 11124
diff changeset
  1011
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
  1012
'split_rule (complete)';
2e3bbac8763b HOL: inductive package no longer splits induction rule aggressively,
wenzelm
parents: 11016
diff changeset
  1013
10998
wenzelm
parents: 10976
diff changeset
  1014
* HOL: induct renamed to lfp_induct, lfp_Tarski to lfp_unfold,
wenzelm
parents: 10976
diff changeset
  1015
gfp_Tarski to gfp_unfold;
10224
7263c856787e *** empty log message ***
nipkow
parents: 10164
diff changeset
  1016
10288
00abecbfa46a contrapos
paulson
parents: 10245
diff changeset
  1017
* HOL: contrapos, contrapos2 renamed to contrapos_nn, contrapos_pp;
00abecbfa46a contrapos
paulson
parents: 10245
diff changeset
  1018
10858
wenzelm
parents: 10856
diff changeset
  1019
* HOL: infix "dvd" now has priority 50 rather than 70 (because it is a
wenzelm
parents: 10856
diff changeset
  1020
relation); infix "^^" has been renamed "``"; infix "``" has been
wenzelm
parents: 10856
diff changeset
  1021
renamed "`"; "univalent" has been renamed "single_valued";
10793
4d6cf7702e3c *** empty log message ***
nipkow
parents: 10770
diff changeset
  1022
10998
wenzelm
parents: 10976
diff changeset
  1023
* HOL/Real: "rinv" and "hrinv" replaced by overloaded "inverse"
wenzelm
parents: 10976
diff changeset
  1024
operation;
wenzelm
parents: 10976
diff changeset
  1025
10868
5af3906edec8 *** empty log message ***
nipkow
parents: 10862
diff changeset
  1026
* HOLCF: infix "`" has been renamed "$"; the symbol syntax is \<cdot>;
10856
e8a5340418b6 *** empty log message ***
nipkow
parents: 10799
diff changeset
  1027
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1028
* Isar: 'obtain' no longer declares "that" fact as simp/intro;
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1029
10401
58bb50f69497 * Isar/HOL: method 'induct' now handles non-atomic goals; as a
wenzelm
parents: 10391
diff changeset
  1030
* 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
  1031
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
  1032
(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
  1033
10976
0e7cf6f9fa29 * Document preparation: renamed standard symbols \<ll> to \<lless> and
wenzelm
parents: 10966
diff changeset
  1034
* Document preparation: renamed standard symbols \<ll> to \<lless> and
0e7cf6f9fa29 * Document preparation: renamed standard symbols \<ll> to \<lless> and
wenzelm
parents: 10966
diff changeset
  1035
\<gg> to \<ggreater>;
0e7cf6f9fa29 * Document preparation: renamed standard symbols \<ll> to \<lless> and
wenzelm
parents: 10966
diff changeset
  1036
10224
7263c856787e *** empty log message ***
nipkow
parents: 10164
diff changeset
  1037
10245
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1038
*** Document preparation ***
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1039
10858
wenzelm
parents: 10856
diff changeset
  1040
* \isabellestyle{NAME} selects version of Isabelle output (currently
wenzelm
parents: 10856
diff changeset
  1041
available: are "it" for near math-mode best-style output, "sl" for
wenzelm
parents: 10856
diff changeset
  1042
slanted text style, and "tt" for plain type-writer; if no
wenzelm
parents: 10856
diff changeset
  1043
\isabellestyle command is given, output is according to slanted
wenzelm
parents: 10856
diff changeset
  1044
type-writer);
wenzelm
parents: 10856
diff changeset
  1045
10322
df38c61bf541 * support sub/super scripts (for single symbols only), input syntax is
wenzelm
parents: 10306
diff changeset
  1046
* 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
  1047
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
  1048
10858
wenzelm
parents: 10856
diff changeset
  1049
* some more standard symbols; see Appendix A of the system manual for
11062
wenzelm
parents: 11050
diff changeset
  1050
the complete list of symbols defined in isabellesym.sty;
10858
wenzelm
parents: 10856
diff changeset
  1051
10998
wenzelm
parents: 10976
diff changeset
  1052
* improved isabelle style files; more abstract symbol implementation
wenzelm
parents: 10976
diff changeset
  1053
(should now use \isamath{...} and \isatext{...} in custom symbol
wenzelm
parents: 10976
diff changeset
  1054
definitions);
wenzelm
parents: 10976
diff changeset
  1055
10634
wenzelm
parents: 10609
diff changeset
  1056
* antiquotation @{goals} and @{subgoals} for output of *dynamic* goals
wenzelm
parents: 10609
diff changeset
  1057
state; Note that presentation of goal states does not conform to
wenzelm
parents: 10609
diff changeset
  1058
actual human-readable proof documents.  Please do not include goal
wenzelm
parents: 10609
diff changeset
  1059
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
  1060
11062
wenzelm
parents: 11050
diff changeset
  1061
* proper indentation of antiquoted output with proportional LaTeX
wenzelm
parents: 11050
diff changeset
  1062
fonts;
10862
857688d775b0 isatool unsymbolize;
wenzelm
parents: 10858
diff changeset
  1063
11050
ac5709ac50b9 * no_document ML operator temporarily disables LaTeX document
wenzelm
parents: 11043
diff changeset
  1064
* no_document ML operator temporarily disables LaTeX document
ac5709ac50b9 * no_document ML operator temporarily disables LaTeX document
wenzelm
parents: 11043
diff changeset
  1065
generation;
ac5709ac50b9 * no_document ML operator temporarily disables LaTeX document
wenzelm
parents: 11043
diff changeset
  1066
11062
wenzelm
parents: 11050
diff changeset
  1067
* isatool unsymbolize tunes sources for plain ASCII communication;
wenzelm
parents: 11050
diff changeset
  1068
10322
df38c61bf541 * support sub/super scripts (for single symbols only), input syntax is
wenzelm
parents: 10306
diff changeset
  1069
10306
b0ab988a27a9 * HOL: default proof step now includes 'intro_classes';
wenzelm
parents: 10288
diff changeset
  1070
*** Isar ***
b0ab988a27a9 * HOL: default proof step now includes 'intro_classes';
wenzelm
parents: 10288
diff changeset
  1071
10547
wenzelm
parents: 10514
diff changeset
  1072
* Pure: Isar now suffers initial goal statements to contain unbound
wenzelm
parents: 10514
diff changeset
  1073
schematic variables (this does not conform to actual readable proof
wenzelm
parents: 10514
diff changeset
  1074
documents, due to unpredictable outcome and non-compositional proof
wenzelm
parents: 10514
diff changeset
  1075
checking); users who know what they are doing may use schematic goals
wenzelm
parents: 10514
diff changeset
  1076
for Prolog-style synthesis of proven results;
wenzelm
parents: 10514
diff changeset
  1077
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1078
* Pure: assumption method (an implicit finishing) now handles actual
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1079
rules as well;
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1080
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1081
* Pure: improved 'obtain' --- moved to Pure, insert "that" into
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1082
initial goal, declare "that" only as Pure intro (only for single
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1083
steps); the "that" rule assumption may now be involved in implicit
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1084
finishing, thus ".." becomes a feasible for trivial obtains;
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1085
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1086
* Pure: default proof step now includes 'intro_classes'; thus trivial
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1087
instance proofs may be performed by "..";
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1088
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1089
* Pure: ?thesis / ?this / "..." now work for pure meta-level
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1090
statements as well;
10306
b0ab988a27a9 * HOL: default proof step now includes 'intro_classes';
wenzelm
parents: 10288
diff changeset
  1091
11097
c1be9f2dff4c more robust selection of calculational rules;
wenzelm
parents: 11094
diff changeset
  1092
* Pure: more robust selection of calculational rules;
c1be9f2dff4c more robust selection of calculational rules;
wenzelm
parents: 11094
diff changeset
  1093
10858
wenzelm
parents: 10856
diff changeset
  1094
* Pure: the builtin notion of 'finished' goal now includes the ==-refl
wenzelm
parents: 10856
diff changeset
  1095
rule (as well as the assumption rule);
wenzelm
parents: 10856
diff changeset
  1096
wenzelm
parents: 10856
diff changeset
  1097
* Pure: 'thm_deps' command visualizes dependencies of theorems and
wenzelm
parents: 10856
diff changeset
  1098
lemmas, using the graph browser tool;
wenzelm
parents: 10856
diff changeset
  1099
10944
710ddb9e8b5e *** empty log message ***
wenzelm
parents: 10915
diff changeset
  1100
* Pure: predict failure of "show" in interactive mode;
710ddb9e8b5e *** empty log message ***
wenzelm
parents: 10915
diff changeset
  1101
11016
8f8ba41a5e7a * Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents: 10998
diff changeset
  1102
* Pure: 'thms_containing' now takes actual terms as arguments;
8f8ba41a5e7a * Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents: 10998
diff changeset
  1103
10401
58bb50f69497 * Isar/HOL: method 'induct' now handles non-atomic goals; as a
wenzelm
parents: 10391
diff changeset
  1104
* 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
  1105
(potential INCOMPATIBILITY); tuned error handling;
58bb50f69497 * Isar/HOL: method 'induct' now handles non-atomic goals; as a
wenzelm
parents: 10391
diff changeset
  1106
10557
wenzelm
parents: 10547
diff changeset
  1107
* HOL: cases and induct rules now provide explicit hints about the
10547
wenzelm
parents: 10514
diff changeset
  1108
number of facts to be consumed (0 for "type" and 1 for "set" rules);
wenzelm
parents: 10514
diff changeset
  1109
any remaining facts are inserted into the goal verbatim;
wenzelm
parents: 10514
diff changeset
  1110
10858
wenzelm
parents: 10856
diff changeset
  1111
* HOL: local contexts (aka cases) may now contain term bindings as
wenzelm
parents: 10856
diff changeset
  1112
well; the 'cases' and 'induct' methods new provide a ?case binding for
wenzelm
parents: 10856
diff changeset
  1113
the result to be shown in each case;
wenzelm
parents: 10856
diff changeset
  1114
10770
4858ad0b8f38 * Isar/HOL: added 'recdef_tc' command;
wenzelm
parents: 10756
diff changeset
  1115
* HOL: added 'recdef_tc' command;
4858ad0b8f38 * Isar/HOL: added 'recdef_tc' command;
wenzelm
parents: 10756
diff changeset
  1116
11016
8f8ba41a5e7a * Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents: 10998
diff changeset
  1117
* isatool convert assists in eliminating legacy ML scripts;
8f8ba41a5e7a * Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents: 10998
diff changeset
  1118
10306
b0ab988a27a9 * HOL: default proof step now includes 'intro_classes';
wenzelm
parents: 10288
diff changeset
  1119
10245
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1120
*** HOL ***
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1121
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1122
* 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
  1123
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
  1124
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
  1125
HOL/Induct/Multiset, HOL/Induct/Acc (as Accessible_Part), HOL/While
10337
fca9cd9fd115 added HOL/Library/List_Prefix;
wenzelm
parents: 10322
diff changeset
  1126
(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
  1127
10966
8f2c27041a8e added HOL-Unix example;
wenzelm
parents: 10944
diff changeset
  1128
* HOL/Unix: "Some aspects of Unix file-system security", a typical
8f2c27041a8e added HOL-Unix example;
wenzelm
parents: 10944
diff changeset
  1129
modelling and verification task performed in Isabelle/HOL +
8f2c27041a8e added HOL-Unix example;
wenzelm
parents: 10944
diff changeset
  1130
Isabelle/Isar + Isabelle document preparation (by Markus Wenzel).
8f2c27041a8e added HOL-Unix example;
wenzelm
parents: 10944
diff changeset
  1131
11094
wenzelm
parents: 11091
diff changeset
  1132
* HOL/Algebra: special summation operator SUM no longer exists, it has
wenzelm
parents: 11091
diff changeset
  1133
been replaced by setsum; infix 'assoc' now has priority 50 (like
wenzelm
parents: 11091
diff changeset
  1134
'dvd'); axiom 'one_not_zero' has been moved from axclass 'ring' to
wenzelm
parents: 11091
diff changeset
  1135
'domain', this makes the theory consistent with mathematical
wenzelm
parents: 11091
diff changeset
  1136
literature;
wenzelm
parents: 11091
diff changeset
  1137
10514
3db037155f0e * HOL: syntax or "abs";
wenzelm
parents: 10474
diff changeset
  1138
* HOL basics: added overloaded operations "inverse" and "divide"
10726
wenzelm
parents: 10664
diff changeset
  1139
(infix "/"), syntax for generic "abs" operation, generic summation
11094
wenzelm
parents: 11091
diff changeset
  1140
operator \<Sum>;
10452
abeefb0a79ae * added overloaded operations "inverse" and "divide" (infix "/");
wenzelm
parents: 10428
diff changeset
  1141
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1142
* HOL/typedef: simplified package, provide more useful rules (see also
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1143
HOL/subset.thy);
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1144
10915
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1145
* HOL/datatype: induction rule for arbitrarily branching datatypes is
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1146
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
  1147
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
  1148
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1149
* 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
  1150
to "split_conv" (old name still available for compatibility);
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1151
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1152
* 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
  1153
rules with string literals);
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1154
12245
3dd9aae402bb Hyperreal
paulson
parents: 12210
diff changeset
  1155
* HOL-Real-Hyperreal: this extends HOL-Real with the hyperreals
3dd9aae402bb Hyperreal
paulson
parents: 12210
diff changeset
  1156
 and Fleuriot's mechanization of analysis, including the transcendental
3dd9aae402bb Hyperreal
paulson
parents: 12210
diff changeset
  1157
 functions for the reals;
10756
831c864cc56e Hyperreal
paulson
parents: 10726
diff changeset
  1158
11094
wenzelm
parents: 11091
diff changeset
  1159
* HOL/Real, HOL/Hyperreal: improved arithmetic simplification;
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1160
10858
wenzelm
parents: 10856
diff changeset
  1161
10474
paulson
parents: 10461
diff changeset
  1162
*** CTT ***
paulson
parents: 10461
diff changeset
  1163
10547
wenzelm
parents: 10514
diff changeset
  1164
* CTT: x-symbol support for Pi, Sigma, -->, : (membership); note that
wenzelm
parents: 10514
diff changeset
  1165
"lam" is displayed as TWO lambda-symbols
10474
paulson
parents: 10461
diff changeset
  1166
10547
wenzelm
parents: 10514
diff changeset
  1167
* CTT: theory Main now available, containing everything (that is, Bool
wenzelm
parents: 10514
diff changeset
  1168
and Arith);
wenzelm
parents: 10514
diff changeset
  1169
10474
paulson
parents: 10461
diff changeset
  1170
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1171
*** General ***
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1172
10547
wenzelm
parents: 10514
diff changeset
  1173
* Pure: the Simplifier has been implemented properly as a derived rule
wenzelm
parents: 10514
diff changeset
  1174
outside of the actual kernel (at last!); the overall performance
wenzelm
parents: 10514
diff changeset
  1175
penalty in practical applications is about 50%, while reliability of
wenzelm
parents: 10514
diff changeset
  1176
the Isabelle inference kernel has been greatly improved;
wenzelm
parents: 10514
diff changeset
  1177
11112
wenzelm
parents: 11097
diff changeset
  1178
* print modes "brackets" and "no_brackets" control output of nested =>
wenzelm
parents: 11097
diff changeset
  1179
(types) and ==> (props); the default behaviour is "brackets";
wenzelm
parents: 11097
diff changeset
  1180
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1181
* Provers: fast_tac (and friends) now handle actual object-logic rules
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1182
as assumptions as well;
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1183
11124
5b97a468b46d isatool install handles KDE version 1 or 2;
wenzelm
parents: 11112
diff changeset
  1184
* system: support Poly/ML 4.0;
5b97a468b46d isatool install handles KDE version 1 or 2;
wenzelm
parents: 11112
diff changeset
  1185
5b97a468b46d isatool install handles KDE version 1 or 2;
wenzelm
parents: 11112
diff changeset
  1186
* system: isatool install handles KDE version 1 or 2;
5b97a468b46d isatool install handles KDE version 1 or 2;
wenzelm
parents: 11112
diff changeset
  1187
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1188
10245
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1189
10103
4e446f8cef3e Isabelle99-1 (October 2000);
wenzelm
parents: 10080
diff changeset
  1190
New in Isabelle99-1 (October 2000)
4e446f8cef3e Isabelle99-1 (October 2000);
wenzelm
parents: 10080
diff changeset
  1191
----------------------------------
8015
wenzelm
parents: 8014
diff changeset
  1192
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1193
*** Overview of INCOMPATIBILITIES ***
8014
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
  1194
8848
wenzelm
parents: 8832
diff changeset
  1195
* HOL: simplification of natural numbers is much changed; to partly
wenzelm
parents: 8832
diff changeset
  1196
recover the old behaviour (e.g. to prevent n+n rewriting to #2*n)
wenzelm
parents: 8832
diff changeset
  1197
issue the following ML commands:
wenzelm
parents: 8832
diff changeset
  1198
wenzelm
parents: 8832
diff changeset
  1199
  Delsimprocs Nat_Numeral_Simprocs.cancel_numerals;
wenzelm
parents: 8832
diff changeset
  1200
  Delsimprocs [Nat_Numeral_Simprocs.combine_numerals];
8788
518a5450ab6d simprocs
paulson
parents: 8736
diff changeset
  1201
10129
a62b275ac0f7 improved t.weak_case_cong text;
wenzelm
parents: 10103
diff changeset
  1202
* HOL: simplification no longer dives into case-expressions; this is
a62b275ac0f7 improved t.weak_case_cong text;
wenzelm
parents: 10103
diff changeset
  1203
controlled by "t.weak_case_cong" for each datatype t;
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1204
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1205
* HOL: nat_less_induct renamed to less_induct;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1206
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1207
* HOL: systematic renaming of the SOME (Eps) rules, may use isatool
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1208
fixsome to patch .thy and .ML sources automatically;
8967
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
  1209
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1210
  select_equality  -> some_equality
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1211
  select_eq_Ex     -> some_eq_ex
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1212
  selectI2EX       -> someI2_ex
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1213
  selectI2         -> someI2
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1214
  selectI          -> someI
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1215
  select1_equality -> some1_equality
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1216
  Eps_sym_eq       -> some_sym_eq_trivial
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1217
  Eps_eq           -> some_eq_trivial
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1218
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1219
* HOL: exhaust_tac on datatypes superceded by new generic case_tac;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1220
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1221
* HOL: removed obsolete theorem binding expand_if (refer to split_if
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1222
instead);
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1223
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1224
* HOL: the recursion equations generated by 'recdef' are now called
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1225
f.simps instead of f.rules;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1226
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1227
* HOL: qed_spec_mp now also handles bounded ALL as well;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1228
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1229
* HOL: 0 is now overloaded, so the type constraint ":: nat" may
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1230
sometimes be needed;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1231
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1232
* HOL: the constant for "f``x" is now "image" rather than "op ``";
8014
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
  1233
10065
ddb3a014f721 renaming the inverse image operator in HOL
paulson
parents: 10003
diff changeset
  1234
* 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
  1235
9330
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
  1236
* 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
  1237
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
  1238
now "<*lex*>" instead of "**";
8705
a3da5538d924 *** empty log message ***
nipkow
parents: 8673
diff changeset
  1239
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1240
* 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
  1241
of main HOL, but was unused); better use HOL's datatype package;
9971
e0164f01d55a renamed the select rules
paulson
parents: 9941
diff changeset
  1242
10137
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
  1243
* HOL: removed "symbols" syntax for constant "override" of theory Map;
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
  1244
the old syntax may be recovered as follows:
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
  1245
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
  1246
  syntax (symbols)
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
  1247
    override  :: "('a ~=> 'b) => ('a ~=> 'b) => ('a ~=> 'b)"
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
  1248
      (infixl "\\<oplus>" 100)
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
  1249
8848
wenzelm
parents: 8832
diff changeset
  1250
* HOL/Real: "rabs" replaced by overloaded "abs" function;
wenzelm
parents: 8832
diff changeset
  1251
8887
c0c583ce0b0b * HOL/ML: even fewer consts are declared as global (see theories Ord,
wenzelm
parents: 8848
diff changeset
  1252
* 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
  1253
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
  1254
internally;
c0c583ce0b0b * HOL/ML: even fewer consts are declared as global (see theories Ord,
wenzelm
parents: 8848
diff changeset
  1255
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1256
* HOL and ZF: syntax for quotienting wrt an equivalence relation
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1257
changed from A/r to A//r;
9908
7c7ff65b6846 HOL: qed_spec_mp now also removes bounded ALL;
wenzelm
parents: 9871
diff changeset
  1258
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1259
* ZF: new treatment of arithmetic (nat & int) may break some old
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1260
proofs;
8921
7c04c98132c4 * Pure: changed syntax of local blocks from {{ }} to { };
wenzelm
parents: 8887
diff changeset
  1261
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1262
* Isar: renamed some attributes (RS -> THEN, simplify -> simplified,
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1263
rulify -> rule_format, elimify -> elim_format, ...);
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
  1264
9941
fe05af7ec816 renamed atts: rulify to rule_format, elimify to elim_format;
wenzelm
parents: 9937
diff changeset
  1265
* Isar/Provers: intro/elim/dest attributes changed; renamed
fe05af7ec816 renamed atts: rulify to rule_format, elimify to elim_format;
wenzelm
parents: 9937
diff changeset
  1266
intro/intro!/intro!! flags to intro!/intro/intro? (in most cases, one
9937
431c96ac997e replaced "delrule" by "rule del";
wenzelm
parents: 9908
diff changeset
  1267
should have to change intro!! to intro? only); replaced "delrule" by
431c96ac997e replaced "delrule" by "rule del";
wenzelm
parents: 9908
diff changeset
  1268
"rule del";
9437
93e91040c286 * Isar/Provers: intro/elim/dest attributes: changed
wenzelm
parents: 9402
diff changeset
  1269
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1270
* Isar/HOL: renamed "intrs" to "intros" in inductive definitions;
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1271
9437
93e91040c286 * Isar/Provers: intro/elim/dest attributes: changed
wenzelm
parents: 9402
diff changeset
  1272
* 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
  1273
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1274
* LaTeX document preparation: several changes of isabelle.sty (see
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1275
lib/texinputs);
8729
094dbd0fad0c * improved name spaces: ambiguous output is qualified; support for
wenzelm
parents: 8705
diff changeset
  1276
8014
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
  1277
8487
5f3b0e02ec15 Isar: splitter support; improved diagnostics;
wenzelm
parents: 8440
diff changeset
  1278
*** Document preparation ***
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1279
9198
0ab3c81e9425 * formal comments (text blocks etc.) in new-style theories may now
wenzelm
parents: 9185
diff changeset
  1280
* formal comments (text blocks etc.) in new-style theories may now
9753
wenzelm
parents: 9746
diff changeset
  1281
contain antiquotations of thm/prop/term/typ/text to be presented
wenzelm
parents: 9746
diff changeset
  1282
according to latex print mode; concrete syntax is like this:
wenzelm
parents: 9746
diff changeset
  1283
@{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
  1284
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1285
* isatool mkdir provides easy setup of Isabelle session directories,
8518
wenzelm
parents: 8487
diff changeset
  1286
including proper document sources;
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1287
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1288
* generated LaTeX sources are now deleted after successful run
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1289
(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
  1290
of isatool usedir;
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1291
8566
30261b1917b5 usedir -D: update styles;
wenzelm
parents: 8534
diff changeset
  1292
* 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
  1293
style files, achieving self-contained LaTeX sources and simplifying
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1294
LaTeX debugging;
8566
30261b1917b5 usedir -D: update styles;
wenzelm
parents: 8534
diff changeset
  1295
8518
wenzelm
parents: 8487
diff changeset
  1296
* 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
  1297
9057
af1ca1acf292 * browser info session directories are now self-contained (may be put
wenzelm
parents: 9052
diff changeset
  1298
* 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
  1299
on WWW server seperately); improved graphs of nested sessions; removed
93e91040c286 * Isar/Provers: intro/elim/dest attributes: changed
wenzelm
parents: 9402
diff changeset
  1300
graph for 'all sessions';
9057
af1ca1acf292 * browser info session directories are now self-contained (may be put
wenzelm
parents: 9052
diff changeset
  1301
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1302
* several improvements in isabelle style files; \isabellestyle{it}
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1303
produces fake math mode output; \isamarkupheader is now \section by
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1304
default; see lib/texinputs/isabelle.sty etc.;
9489
aa757b35b129 * blast(_tac) now handles actual object-logic rules as assumptions;
wenzelm
parents: 9457
diff changeset
  1305
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1306
8184
6b7ef9fc39da nat as names;
wenzelm
parents: 8015
diff changeset
  1307
*** Isar ***
6b7ef9fc39da nat as names;
wenzelm
parents: 8015
diff changeset
  1308
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1309
* Isar/Pure: local results and corresponding term bindings are now
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1310
subject to Hindley-Milner polymorphism (similar to ML); this
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1311
accommodates incremental type-inference very nicely;
8283
0a319c5746eb * Pure now provides its own version of intro/elim/dest attributes;
wenzelm
parents: 8271
diff changeset
  1312
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1313
* Isar/Pure: new derived language element 'obtain' supports
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1314
generalized existence reasoning;
8621
8ba0f90f6f35 * Isar/Pure: local results and corresponding term bindings are now
wenzelm
parents: 8603
diff changeset
  1315
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1316
* Isar/Pure: new calculational elements 'moreover' and 'ultimately'
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1317
support accumulation of results, without applying any rules yet;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1318
useful to collect intermediate results without explicit name
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1319
references, and for use with transitivity rules with more than 2
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1320
premises;
8184
6b7ef9fc39da nat as names;
wenzelm
parents: 8015
diff changeset
  1321
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1322
* Isar/Pure: scalable support for case-analysis type proofs: new
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1323
'case' language element refers to local contexts symbolically, as
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1324
produced by certain proof methods; internally, case names are attached
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1325
to theorems as "tags";
8440
d66f0f14b1ca * HOL: exhaust_tac on datatypes superceded by new case_tac;
wenzelm
parents: 8425
diff changeset
  1326
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1327
* Isar/Pure: theory command 'hide' removes declarations from
9330
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
  1328
class/type/const name spaces;
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
  1329
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1330
* 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
  1331
indicate potential overloading;
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
  1332
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1333
* 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
  1334
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1335
* 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
  1336
"{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
  1337
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1338
* Isar/Pure now provides its own version of intro/elim/dest
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1339
attributes; useful for building new logics, but beware of confusion
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1340
with the version in Provers/classical;
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1341
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1342
* 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
  1343
case name 'antecedent';
8440
d66f0f14b1ca * HOL: exhaust_tac on datatypes superceded by new case_tac;
wenzelm
parents: 8425
diff changeset
  1344
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1345
* Isar/Pure: removed obsolete 'transfer' attribute (transfer of thms
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1346
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
  1347
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1348
* Isar/Pure: theory command 'method_setup' provides a simple interface
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1349
for definining proof methods in ML;
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1350
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1351
* 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
  1352
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
  1353
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
  1354
replaced "delrule" by "rule del";
8283
0a319c5746eb * Pure now provides its own version of intro/elim/dest attributes;
wenzelm
parents: 8271
diff changeset
  1355
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1356
* Isar/Provers: new 'hypsubst' method, plain 'subst' method and
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1357
'symmetric' attribute (the latter supercedes [RS sym]);
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1358
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1359
* Isar/Provers: splitter support (via 'split' attribute and 'simp'
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1360
method modifier); 'simp' method: 'only:' modifier removes loopers as
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1361
well (including splits);
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1362
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1363
* Isar/Provers: Simplifier and Classical methods now support all kind
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1364
of modifiers used in the past, including 'cong', 'iff', etc.
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1365
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1366
* Isar/Provers: added 'fastsimp' and 'clarsimp' methods (combination
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1367
of Simplifier and Classical reasoner);
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1368
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1369
* Isar/HOL: new proof method 'cases' and improved version of 'induct'
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1370
now support named cases; major packages (inductive, datatype, primrec,
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1371
recdef) support case names and properly name parameters;
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1372
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1373
* Isar/HOL: new transitivity rules for substitution in inequalities --
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1374
monotonicity conditions are extracted to be proven at end of
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1375
calculations;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1376
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1377
* Isar/HOL: removed 'case_split' thm binding, should use 'cases' proof
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1378
method anyway;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1379
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1380
* Isar/HOL: removed old expand_if = split_if; theorems if_splits =
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1381
split_if split_if_asm; datatype package provides theorems foo.splits =
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1382
foo.split foo.split_asm for each datatype;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1383
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1384
* Isar/HOL: tuned inductive package, rename "intrs" to "intros"
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1385
(potential INCOMPATIBILITY), emulation of mk_cases feature for proof
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1386
scripts: new 'inductive_cases' command and 'ind_cases' method; (Note:
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1387
use "(cases (simplified))" method in proper proof texts);
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1388
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1389
* Isar/HOL: added global 'arith_split' attribute for 'arith' method;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1390
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1391
* Isar: names of theorems etc. may be natural numbers as well;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1392
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1393
* Isar: 'pr' command: optional arguments for goals_limit and
9724
2030c5d63741 * 'pr' command: optional argument for ProofContext.prems_limit;
wenzelm
parents: 9709
diff changeset
  1394
ProofContext.prems_limit; no longer prints theory contexts, but only
2030c5d63741 * 'pr' command: optional argument for ProofContext.prems_limit;
wenzelm
parents: 9709
diff changeset
  1395
proof states;
8487
5f3b0e02ec15 Isar: splitter support; improved diagnostics;
wenzelm
parents: 8440
diff changeset
  1396
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1397
* Isar: diagnostic commands 'pr', 'thm', 'prop', 'term', 'typ' admit
8518
wenzelm
parents: 8487
diff changeset
  1398
additional print modes to be specified; e.g. "pr(latex)" will print
wenzelm
parents: 8487
diff changeset
  1399
proof state according to the Isabelle LaTeX style;
8487
5f3b0e02ec15 Isar: splitter support; improved diagnostics;
wenzelm
parents: 8440
diff changeset
  1400
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1401
* Isar: improved support for emulating tactic scripts, including proof
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1402
methods 'rule_tac' etc., 'cut_tac', 'thin_tac', 'subgoal_tac',
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1403
'rename_tac', 'rotate_tac', 'tactic', and 'case_tac' / 'induct_tac'
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1404
(for HOL datatypes);
8534
fdbabfbc3829 improved support for emulating tactic scripts;
wenzelm
parents: 8518
diff changeset
  1405
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1406
* Isar: simplified (more robust) goal selection of proof methods: 1st
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1407
goal, all goals, or explicit goal specifier (tactic emu