NEWS
author nipkow
Thu, 02 Dec 2004 11:44:55 +0100
changeset 15361 bb2dd95c8c5e
parent 15356 cfd08f5e0bdd
child 15406 75a2ca90693e
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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* Document preparation: new antiquotations @{lhs thm} and @{rhs thm}
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  printing the lhs/rhs of definitions, equations, inequations etc. 
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* isatool usedir: new option -f that allows specification of the ML
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  file to be used by Isabelle; default is ROOT.ML.
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* Theory headers: the new header syntax for Isar theories is
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  theory <name>
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  imports <theory1> ... <theoryn>
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  begin
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  optionally also with a "files" section. The syntax
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  theory <name> = <theory1> + ... + <theoryn>:
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  will still be supported for some time but will eventually disappear.
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  The syntax of old-style theories has not changed.
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* Provers/quasi.ML:  new transitivity reasoners for transitivity only
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  and quasi orders.
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* Provers/trancl.ML:  new transitivity reasoner for transitive and
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  reflexive-transitive closure of relations.
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* Provers/blast.ML:  new reference depth_limit to make blast's depth
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  limit (previously hard-coded with a value of 20) user-definable.
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* 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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*** Isar ***
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* Locales:
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  - "includes" disallowed in declaration of named locales (command "locale").
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  - Fixed parameter management in theorem generation for goals with "includes".
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    INCOMPATIBILITY: rarely, the generated theorem statement is different.
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*** HOL ***
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* Datatype induction via method `induct' now preserves the name of the
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  induction variable. For example, when proving P(xs::'a list) by induction
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  on xs, the induction step is now P(xs) ==> P(a#xs) rather than
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  P(list) ==> P(a#list) as previously.
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* HOL/record: reimplementation of records. Improved scalability for
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  records with many fields, avoiding performance problems for type
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  inference. Records are no longer composed of nested field types, but
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  of nested extension types. Therefore the record type only grows
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  linear in the number of extensions and not in the number of fields.
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  The top-level (users) view on records is preserved.  Potential
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  INCOMPATIBILITY only in strange cases, where the theory depends on
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  the old record representation. The type generated for a record is
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  called <record_name>_ext_type.
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* HOL/record: Reference record_quick_and_dirty_sensitive can be
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  enabled to skip the proofs triggered by a record definition or a
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  simproc (if quick_and_dirty is enabled). Definitions of large
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  records can take quite long.
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* HOL/record: "record_upd_simproc" for simplification of multiple
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  record updates enabled by default.  Moreover, trivial updates are
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  also removed: r(|x := x r|) = r.  INCOMPATIBILITY: old proofs break
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  occasionally, since simplification is more powerful by default.
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* HOL: symbolic syntax of Hilbert Choice Operator is now as follows:
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  syntax (epsilon)
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    "_Eps" :: "[pttrn, bool] => 'a"    ("(3\<some>_./ _)" [0, 10] 10)
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  The symbol \<some> is displayed as the alternative epsilon of LaTeX
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  and x-symbol; use option '-m epsilon' to get it actually printed.
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  Moreover, the mathematically important symbolic identifier
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  \<epsilon> becomes available as variable, constant etc.
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* HOL: "x > y" abbreviates "y < x" and "x >= y" abbreviates "y <= x".
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  Similarly for all quantifiers: "ALL x > y" etc.
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  The x-symbol for >= is \<ge>.
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* HOL/SetInterval: The syntax for open intervals has changed:
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  Old         New
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  {..n(}   -> {..<n}
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  {)n..}   -> {n<..}
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  {m..n(}  -> {m..<n}
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  {)m..n}  -> {m<..n}
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  {)m..n(} -> {m<..<n}
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  The old syntax is still supported but will disappear in the future.
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  For conversion use the following emacs search and replace patterns:
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  {)\([^\.]*\)\.\.  ->  {\1<\.\.}
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  \.\.\([^(}]*\)(}  ->  \.\.<\1}
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  They are not perfect but work quite well.
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* HOL: The syntax for 'setsum', summation over finite sets, has changed:
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  The syntax for 'setsum (%x. e) A' used to be '\<Sum>x:A. e'
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  and is now either 'SUM x:A. e' or '\<Sum>x\<in>A. e'.
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  There is new syntax for summation over finite sets:
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  '\<Sum>x | P. e'    is the same as  'setsum (%x. e) {x. P}'
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  '\<Sum>x=a..b. e'   is the same as  'setsum (%x. e) {a..b}'
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  '\<Sum>x=a..<b. e'  is the same as  'setsum (%x. e) {a..<b}'
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  '\<Sum>x<k. e'      is the same as  'setsum (%x. e) {..<k}'
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  Function 'Summation' over nat is gone, its syntax '\<Sum>i<k. e'
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  now translates into 'setsum' as above.
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* HOL: Finite set induction: In Isar proofs, the insert case is now
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  "case (insert x F)" instead of the old counterintuitive "case (insert F x)".
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* HOL/Simplifier:
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  - Is now set up to reason about transitivity chains involving "trancl"
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  (r^+) and "rtrancl" (r^*) by setting up tactics provided by
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  Provers/trancl.ML as additional solvers.  INCOMPATIBILITY: old proofs break
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  occasionally as simplification may now solve more goals than previously.
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  - Converts x <= y into x = y if assumption y <= x is present.  Works for
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  all partial orders (class "order"), in particular numbers and sets. For
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  linear orders (e.g. numbers) it treats ~ x < y just like y <= x.
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* HOL: new 'isatool dimacs2hol' to convert files in DIMACS CNF format
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  (containing Boolean satisfiability problems) into Isabelle/HOL theories.
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14682
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*** HOLCF ***
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a5072752114c HOLCF: discontinued special version of 'constdefs';
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* HOLCF: discontinued special version of 'constdefs' (which used to
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  support continuous functions) in favor of the general Pure one with
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  full type-inference.
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a5072752114c HOLCF: discontinued special version of 'constdefs';
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*** ZF ***
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* ZF/ex/{Group,Ring}: examples in abstract algebra, including the
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  First Isomorphism Theorem (on quotienting by the kernel of a
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  homomorphism).
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* ZF/Simplifier: install second copy of type solver that actually
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  makes use of TC rules declared to Isar proof contexts (or locales);
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  the old version is still required for ML proof scripts.
14885
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New in Isabelle2004 (April 2004)
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--------------------------------
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*** General ***
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* Provers/order.ML:  new efficient reasoner for partial and linear orders.
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  Replaces linorder.ML.
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* Pure: Greek letters (except small lambda, \<lambda>), as well as Gothic
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  (\<aa>...\<zz>\<AA>...\<ZZ>), calligraphic (\<A>...\<Z>), and Euler
14173
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  (\<a>...\<z>), are now considered normal letters, and can therefore
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  be used anywhere where an ASCII letter (a...zA...Z) has until
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  now. COMPATIBILITY: This obviously changes the parsing of some
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  terms, especially where a symbol has been used as a binder, say
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  '\<Pi>x. ...', which is now a type error since \<Pi>x will be parsed
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  as an identifier.  Fix it by inserting a space around former
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  symbols.  Call 'isatool fixgreek' to try to fix parsing errors in
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  existing theory and ML files.
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* Pure: Macintosh and Windows line-breaks are now allowed in theory files.
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* Pure: single letter sub/superscripts (\<^isub> and \<^isup>) are now
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  allowed in identifiers. Similar to Greek letters \<^isub> is now considered
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  a normal (but invisible) letter. For multiple letter subscripts repeat
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  \<^isub> like this: x\<^isub>1\<^isub>2.
14233
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14333
14f29eb097a3 \<^bsub> .. \<^esub>
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* Pure: There are now sub-/superscripts that can span more than one
14f29eb097a3 \<^bsub> .. \<^esub>
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  character. Text between \<^bsub> and \<^esub> is set in subscript in
14606
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  ProofGeneral and LaTeX, text between \<^bsup> and \<^esup> in
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  superscript. The new control characters are not identifier parts.
14333
14f29eb097a3 \<^bsub> .. \<^esub>
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14561
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* Pure: Control-symbols of the form \<^raw:...> will literally print the
14606
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  content of "..." to the latex file instead of \isacntrl... . The "..."
0be6c11e7128 Pure: 'instance' now handles general arities;
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  may consist of any printable characters excluding the end bracket >.
14361
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* Pure: Using new Isar command "finalconsts" (or the ML functions
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  Theory.add_finals or Theory.add_finals_i) it is now possible to
a486123e24a5 line-breaks; rewording
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  declare constants "final", which prevents their being given a definition
a486123e24a5 line-breaks; rewording
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  later.  It is useful for constants whose behaviour is fixed axiomatically
14224
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  rather than definitionally, such as the meta-logic connectives.
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* Pure: 'instance' now handles general arities with general sorts
0be6c11e7128 Pure: 'instance' now handles general arities;
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  (i.e. intersections of classes),
14503
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* Presentation: generated HTML now uses a CSS style sheet to make layout
14731
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  (somewhat) independent of content. It is copied from lib/html/isabelle.css.
14547
e0c0179100c9 isabelle.css
kleing
parents: 14536
diff changeset
   314
  It can be changed to alter the colors/layout of generated pages.
e0c0179100c9 isabelle.css
kleing
parents: 14536
diff changeset
   315
14556
c5078f6c99a9 * Calculation commands "moreover" and "also" no longer interfere with
wenzelm
parents: 14551
diff changeset
   316
14175
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   317
*** Isar ***
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   318
14508
859b11514537 Experimental command for instantiation of locales in proof contexts:
ballarin
parents: 14503
diff changeset
   319
* 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
   320
  cut_tac, subgoal_tac and thin_tac:
14175
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   321
  - Now understand static (Isar) contexts.  As a consequence, users of Isar
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   322
    locales are no longer forced to write Isar proof scripts.
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   323
    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
   324
    emulations.
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   325
  - 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
   326
    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
   327
    This is consistent with the instantiation attribute "where".
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   328
14257
a7ef3f7588c5 Type inference bug in Isar attributes "where" and "of" fixed.
ballarin
parents: 14255
diff changeset
   329
* Attributes "where" and "of":
14285
92ed032e83a1 Isar: where attribute supports instantiation of type vars.
ballarin
parents: 14283
diff changeset
   330
  - 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
   331
    the instantiation string.  This fixes a bug that caused instantiated
92ed032e83a1 Isar: where attribute supports instantiation of type vars.
ballarin
parents: 14283
diff changeset
   332
    theorems to have too special types in some circumstances.
92ed032e83a1 Isar: where attribute supports instantiation of type vars.
ballarin
parents: 14283
diff changeset
   333
  - "where" permits explicit instantiations of type variables.
14257
a7ef3f7588c5 Type inference bug in Isar attributes "where" and "of" fixed.
ballarin
parents: 14255
diff changeset
   334
14556
c5078f6c99a9 * Calculation commands "moreover" and "also" no longer interfere with
wenzelm
parents: 14551
diff changeset
   335
* Calculation commands "moreover" and "also" no longer interfere with
c5078f6c99a9 * Calculation commands "moreover" and "also" no longer interfere with
wenzelm
parents: 14551
diff changeset
   336
  current facts ("this"), admitting arbitrary combinations with "then"
c5078f6c99a9 * Calculation commands "moreover" and "also" no longer interfere with
wenzelm
parents: 14551
diff changeset
   337
  and derived forms.
14283
516358ca7b42 moreover and also do not reset facts any more
kleing
parents: 14257
diff changeset
   338
14211
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   339
* Locales:
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   340
  - Goal statements involving the context element "includes" no longer
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   341
    generate theorems with internal delta predicates (those ending on
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   342
    "_axioms") in the premise.
7286c187596d Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents: 14199
diff changeset
   343
    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
   344
  - 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
   345
    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
   346
  - 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
   347
    [intro?] and [elim?] (respectively) by default.
14508
859b11514537 Experimental command for instantiation of locales in proof contexts:
ballarin
parents: 14503
diff changeset
   348
  - Experimental command for instantiation of locales in proof contexts:
14551
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   349
        instantiate <label>[<attrs>]: <loc>
14508
859b11514537 Experimental command for instantiation of locales in proof contexts:
ballarin
parents: 14503
diff changeset
   350
    Instantiates locale <loc> and adds all its theorems to the current context
14551
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   351
    taking into account their attributes.  Label and attrs are optional
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   352
    modifiers, like in theorem declarations.  If present, names of
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   353
    instantiated theorems are qualified with <label>, and the attributes
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   354
    <attrs> are applied after any attributes these theorems might have already.
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   355
      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
   356
    "<loc> t1 ... tn" is expected from which instantiations of the parameters
14551
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   357
    are derived.  The command does not support old-style locales declared
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   358
    with "locale (open)".
2cb6ff394bfb Various changes to HOL-Algebra;
ballarin
parents: 14547
diff changeset
   359
      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
   360
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   361
* HOL: Tactic emulation methods induct_tac and case_tac understand static
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   362
  (Isar) contexts.
dbd16ebaf907 Method rule_tac understands Isar contexts: documentation.
ballarin
parents: 14173
diff changeset
   363
14556
c5078f6c99a9 * Calculation commands "moreover" and "also" no longer interfere with
wenzelm
parents: 14551
diff changeset
   364
14136
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   365
*** HOL ***
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   366
14624
9b3397a848c3 add HOL4
kleing
parents: 14610
diff changeset
   367
* Proof import: new image HOL4 contains the imported library from
9b3397a848c3 add HOL4
kleing
parents: 14610
diff changeset
   368
  the HOL4 system with about 2500 theorems. It is imported by
9b3397a848c3 add HOL4
kleing
parents: 14610
diff changeset
   369
  replaying proof terms produced by HOL4 in Isabelle. The HOL4 image
9b3397a848c3 add HOL4
kleing
parents: 14610
diff changeset
   370
  can be used like any other Isabelle image.  See
9b3397a848c3 add HOL4
kleing
parents: 14610
diff changeset
   371
  HOL/Import/HOL/README for more information.
9b3397a848c3 add HOL4
kleing
parents: 14610
diff changeset
   372
14398
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   373
* Simplifier:
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   374
  - Much improved handling of linear and partial orders.
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   375
    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
   376
    "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
   377
    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
   378
    to solve goals from the assumptions.
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   379
  - INCOMPATIBILITY: old proofs break occasionally.  Typically, applications
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   380
    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
   381
    is solved by simplification already.
c5c47703f763 Efficient, graph-based reasoner for linear and partial orders.
ballarin
parents: 14389
diff changeset
   382
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   383
* Numerics: new theory Ring_and_Field contains over 250 basic numerical laws,
14389
paulson
parents: 14380
diff changeset
   384
    all proved in axiomatic type classes for semirings, rings and fields.
paulson
parents: 14380
diff changeset
   385
paulson
parents: 14380
diff changeset
   386
* Numerics:
paulson
parents: 14380
diff changeset
   387
  - 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
   388
    now formalized using the Ring_and_Field theory mentioned above.
14389
paulson
parents: 14380
diff changeset
   389
  - INCOMPATIBILITY: simplification and arithmetic behaves somewhat differently
paulson
parents: 14380
diff changeset
   390
    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
   391
  - INCOMPATIBILITY: many type-specific arithmetic laws have gone.
14480
14b7923b3307 clarified
paulson
parents: 14464
diff changeset
   392
    Look for the general versions in Ring_and_Field (and Power if they concern
14b7923b3307 clarified
paulson
parents: 14464
diff changeset
   393
    exponentiation).
14389
paulson
parents: 14380
diff changeset
   394
14401
477380c74c1d removal of the legacy ML structure List
paulson
parents: 14399
diff changeset
   395
* Type "rat" of the rational numbers is now available in HOL-Complex.
14389
paulson
parents: 14380
diff changeset
   396
14255
e6e3e3f0deed Records:
schirmer
parents: 14254
diff changeset
   397
* Records:
e6e3e3f0deed Records:
schirmer
parents: 14254
diff changeset
   398
  - Record types are now by default printed with their type abbreviation
e6e3e3f0deed Records:
schirmer
parents: 14254
diff changeset
   399
    instead of the list of all field types. This can be configured via
e6e3e3f0deed Records:
schirmer
parents: 14254
diff changeset
   400
    the reference "print_record_type_abbr".
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   401
  - Simproc "record_upd_simproc" for simplification of multiple updates added
14255
e6e3e3f0deed Records:
schirmer
parents: 14254
diff changeset
   402
    (not enabled by default).
14427
cea7d2f76112 added record_ex_sel_eq_simproc
schirmer
parents: 14418
diff changeset
   403
  - 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
   404
    EX x. x = sel r to True (not enabled by default).
14255
e6e3e3f0deed Records:
schirmer
parents: 14254
diff changeset
   405
  - Tactic "record_split_simp_tac" to split and simplify records added.
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   406
14136
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   407
* 'specification' command added, allowing for definition by
14224
442c097c1437 Added info on the new 'finalconsts' command.
skalberg
parents: 14211
diff changeset
   408
  specification.  There is also an 'ax_specification' command that
442c097c1437 Added info on the new 'finalconsts' command.
skalberg
parents: 14211
diff changeset
   409
  introduces the new constants axiomatically.
14136
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   410
14375
a545da363b23 *** empty log message ***
nipkow
parents: 14361
diff changeset
   411
* arith(_tac) is now able to generate counterexamples for reals as well.
a545da363b23 *** empty log message ***
nipkow
parents: 14361
diff changeset
   412
14399
dc677b35e54f New lemmas about inversion of restricted functions.
ballarin
parents: 14398
diff changeset
   413
* HOL-Algebra: new locale "ring" for non-commutative rings.
dc677b35e54f New lemmas about inversion of restricted functions.
ballarin
parents: 14398
diff changeset
   414
14243
0e2ec694784d recursion
paulson
parents: 14237
diff changeset
   415
* HOL-ex: InductiveInvariant_examples illustrates advanced recursive function
14610
9c2e31e483b2 added HOL-Matrix, added HOL/Matrix/ROOT.ML
kleing
parents: 14606
diff changeset
   416
  definitions, thanks to Sava Krsti\'{c} and John Matthews.
9c2e31e483b2 added HOL-Matrix, added HOL/Matrix/ROOT.ML
kleing
parents: 14606
diff changeset
   417
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   418
* HOL-Matrix: a first theory for matrices in HOL with an application of
14610
9c2e31e483b2 added HOL-Matrix, added HOL/Matrix/ROOT.ML
kleing
parents: 14606
diff changeset
   419
  matrix theory to linear programming.
14136
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   420
14380
04b603a6f17d *** empty log message ***
nipkow
parents: 14375
diff changeset
   421
* Unions and Intersections:
15119
e5f167042c1d undid UN/INT xsymbol syntax with subscripts.
nipkow
parents: 15103
diff changeset
   422
  The latex output syntax of UN and INT has been changed
e5f167042c1d undid UN/INT xsymbol syntax with subscripts.
nipkow
parents: 15103
diff changeset
   423
  from "\Union x \in A. B" to "\Union_{x \in A} B"
e5f167042c1d undid UN/INT xsymbol syntax with subscripts.
nipkow
parents: 15103
diff changeset
   424
  i.e. the index formulae has become a subscript.
e5f167042c1d undid UN/INT xsymbol syntax with subscripts.
nipkow
parents: 15103
diff changeset
   425
  Similarly for "\Union x. B", and for \Inter instead of \Union.
14380
04b603a6f17d *** empty log message ***
nipkow
parents: 14375
diff changeset
   426
14418
b62323c85134 union/intersection over intervals
kleing
parents: 14401
diff changeset
   427
* Unions and Intersections over Intervals:
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   428
  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
   429
  also an x-symbol version with subscripts "\<Union>\<^bsub>i <= n\<^esub>. A"
14418
b62323c85134 union/intersection over intervals
kleing
parents: 14401
diff changeset
   430
  like in normal math, and corresponding versions for < and for intersection.
b62323c85134 union/intersection over intervals
kleing
parents: 14401
diff changeset
   431
14401
477380c74c1d removal of the legacy ML structure List
paulson
parents: 14399
diff changeset
   432
* 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
   433
  conflicted with ML Basis Library structures having the same names.
14380
04b603a6f17d *** empty log message ***
nipkow
parents: 14375
diff changeset
   434
14464
webertj
parents: 14427
diff changeset
   435
* 'refute' command added to search for (finite) countermodels.  Only works
webertj
parents: 14427
diff changeset
   436
  for a fragment of HOL.  The installation of an external SAT solver is
webertj
parents: 14427
diff changeset
   437
  highly recommended.  See "HOL/Refute.thy" for details.
webertj
parents: 14427
diff changeset
   438
14602
e06ded775eca Added entry for quickcheck command.
berghofe
parents: 14572
diff changeset
   439
* 'quickcheck' command: Allows to find counterexamples by evaluating
e06ded775eca Added entry for quickcheck command.
berghofe
parents: 14572
diff changeset
   440
  formulae under an assignment of free variables to random values.
e06ded775eca Added entry for quickcheck command.
berghofe
parents: 14572
diff changeset
   441
  In contrast to 'refute', it can deal with inductive datatypes,
e06ded775eca Added entry for quickcheck command.
berghofe
parents: 14572
diff changeset
   442
  but cannot handle quantifiers. See "HOL/ex/Quickcheck_Examples.thy"
e06ded775eca Added entry for quickcheck command.
berghofe
parents: 14572
diff changeset
   443
  for examples.
14464
webertj
parents: 14427
diff changeset
   444
14606
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   445
14536
43e436a4f293 added HOLCF/Streams.thy (with concatenation etc.)
oheimb
parents: 14508
diff changeset
   446
*** HOLCF ***
43e436a4f293 added HOLCF/Streams.thy (with concatenation etc.)
oheimb
parents: 14508
diff changeset
   447
43e436a4f293 added HOLCF/Streams.thy (with concatenation etc.)
oheimb
parents: 14508
diff changeset
   448
* 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
   449
14572
wenzelm
parents: 14561
diff changeset
   450
wenzelm
parents: 14561
diff changeset
   451
14136
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   452
New in Isabelle2003 (May 2003)
14606
0be6c11e7128 Pure: 'instance' now handles general arities;
wenzelm
parents: 14602
diff changeset
   453
------------------------------
14136
9b7a62788dac opened new section for next Isabelle release
kleing
parents: 14119
diff changeset
   454
13280
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents: 13190
diff changeset
   455
*** General ***
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents: 13190
diff changeset
   456
13618
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   457
* Provers/simplifier:
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   458
13781
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   459
  - Completely reimplemented method simp (ML: Asm_full_simp_tac):
13618
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   460
    Assumptions are now subject to complete mutual simplification,
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   461
    not just from left to right. The simplifier now preserves
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   462
    the order of assumptions.
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   463
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   464
    Potential INCOMPATIBILITY:
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   465
13781
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   466
    -- simp sometimes diverges where the old version did
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   467
       not, e.g. invoking simp on the goal
13618
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   468
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   469
        [| P (f x); y = x; f x = f y |] ==> Q
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   470
13781
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   471
       now gives rise to the infinite reduction sequence
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   472
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   473
        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
   474
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   475
       Using "simp (asm_lr)" (ML: Asm_lr_simp_tac) instead often solves this
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   476
       kind of problem.
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   477
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   478
    -- Tactics combining classical reasoner and simplification (such as auto)
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   479
       are also affected by this change, because many of them rely on
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   480
       simp. They may sometimes diverge as well or yield a different numbers
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   481
       of subgoals. Try to use e.g. force, fastsimp, or safe instead of auto
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   482
       in case of problems. Sometimes subsequent calls to the classical
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   483
       reasoner will fail because a preceeding call to the simplifier too
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   484
       eagerly simplified the goal, e.g. deleted redundant premises.
13618
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   485
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   486
  - The simplifier trace now shows the names of the applied rewrite rules
12290bdce807 Added some comments on new simplifier.
berghofe
parents: 13613
diff changeset
   487
13829
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   488
  - You can limit the number of recursive invocations of the simplifier
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   489
    during conditional rewriting (where the simplifie tries to solve the
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   490
    conditions before applying the rewrite rule):
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   491
    ML "simp_depth_limit := n"
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   492
    where n is an integer. Thus you can force termination where previously
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   493
    the simplifier would diverge.
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   494
13835
12b2ffbe543a Change to meta simplifier: congruence rules may now have frees as head of term.
ballarin
parents: 13829
diff changeset
   495
  - Accepts free variables as head terms in congruence rules.  Useful in Isar.
13829
af0218406395 *** empty log message ***
nipkow
parents: 13824
diff changeset
   496
13938
b033b53d0c1e Simplifier: congruence rule update.
ballarin
parents: 13899
diff changeset
   497
  - No longer aborts on failed congruence proof.  Instead, the
b033b53d0c1e Simplifier: congruence rule update.
ballarin
parents: 13899
diff changeset
   498
    congruence is ignored.
b033b53d0c1e Simplifier: congruence rule update.
ballarin
parents: 13899
diff changeset
   499
14008
f843528b9f3c Program extraction framework.
berghofe
parents: 13995
diff changeset
   500
* Pure: New generic framework for extracting programs from constructive
f843528b9f3c Program extraction framework.
berghofe
parents: 13995
diff changeset
   501
  proofs. See HOL/Extraction.thy for an example instantiation, as well
f843528b9f3c Program extraction framework.
berghofe
parents: 13995
diff changeset
   502
  as HOL/Extraction for some case studies.
f843528b9f3c Program extraction framework.
berghofe
parents: 13995
diff changeset
   503
13868
01b516b64233 *** empty log message ***
nipkow
parents: 13835
diff changeset
   504
* Pure: The main goal of the proof state is no longer shown by default, only
01b516b64233 *** empty log message ***
nipkow
parents: 13835
diff changeset
   505
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
   506
   PG menu: Isabelle/Isar -> Settings -> Show Main Goal
13815
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   507
(ML: Proof.show_main_goal).
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   508
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   509
* Pure: You can find all matching introduction rules for subgoal 1, i.e. all
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   510
rules whose conclusion matches subgoal 1:
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   511
      PG menu: Isabelle/Isar -> Show me -> matching rules
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   512
The rules are ordered by how closely they match the subgoal.
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   513
In particular, rules that solve a subgoal outright are displayed first
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   514
(or rather last, the way they are printed).
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   515
(ML: ProofGeneral.print_intros())
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   516
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   517
* Pure: New flag trace_unify_fail causes unification to print
13781
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   518
diagnostic information (PG: in trace buffer) when it fails. This is
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   519
useful for figuring out why single step proofs like rule, erule or
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   520
assumption failed.
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   521
13815
0832792725db *** empty log message ***
nipkow
parents: 13781
diff changeset
   522
* Pure: Locale specifications now produce predicate definitions
13410
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   523
according to the body of text (covering assumptions modulo local
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   524
definitions); predicate "loc_axioms" covers newly introduced text,
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   525
while "loc" is cumulative wrt. all included locale expressions; the
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   526
latter view is presented only on export into the global theory
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   527
context; potential INCOMPATIBILITY, use "(open)" option to fall back
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   528
on the old view without predicates;
f2cd09766864 * Pure: locale specifications now produce predicate definitions;
wenzelm
parents: 13344
diff changeset
   529
13459
83f41b047a39 * Pure: predefined locales "var" and "struct" are useful for sharing
wenzelm
parents: 13443
diff changeset
   530
* 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
   531
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
   532
``var x + var y + struct M'' as import;
83f41b047a39 * Pure: predefined locales "var" and "struct" are useful for sharing
wenzelm
parents: 13443
diff changeset
   533
13463
07747943c626 * Provers: Simplifier.simproc(_i) now provide sane interface for
wenzelm
parents: 13459
diff changeset
   534
* 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
   535
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
   536
include local facts of proof configuration (also covers active
13541
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   537
locales), cover fixed variables in index; may use "_" in term
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   538
specification; an optional limit for the number of printed facts may
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   539
be given (the default is 40);
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   540
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   541
* Pure: disallow duplicate fact bindings within new-style theory files
44efea0e21fa *** empty log message ***
wenzelm
parents: 13540
diff changeset
   542
(batch-mode only);
13540
aede0306e214 * Pure: disallow duplicate fact bindings within new-style theory files;
wenzelm
parents: 13522
diff changeset
   543
13463
07747943c626 * Provers: Simplifier.simproc(_i) now provide sane interface for
wenzelm
parents: 13459
diff changeset
   544
* Provers: improved induct method: assumptions introduced by case
07747943c626 * Provers: Simplifier.simproc(_i) now provide sane interface for
wenzelm
parents: 13459
diff changeset
   545
"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
   546
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
   547
13550
5a176b8dda84 removal of blast.overloaded
paulson
parents: 13549
diff changeset
   548
* Provers: the function blast.overloaded has been removed: all constants
5a176b8dda84 removal of blast.overloaded
paulson
parents: 13549
diff changeset
   549
are regarded as potentially overloaded, which improves robustness in exchange
5a176b8dda84 removal of blast.overloaded
paulson
parents: 13549
diff changeset
   550
for slight decrease in efficiency;
5a176b8dda84 removal of blast.overloaded
paulson
parents: 13549
diff changeset
   551
13781
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   552
* Provers/linorder: New generic prover for transitivity reasoning over
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   553
linear orders.  Note: this prover is not efficient!
ecb2df44253e *** empty log message ***
nipkow
parents: 13745
diff changeset
   554
13522
934fffeb6f38 * Isar: preview of problems to finish 'show' now produce an error
wenzelm
parents: 13518
diff changeset
   555
* 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
   556
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
   557
13280
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents: 13190
diff changeset
   558
13158
8e86582a90d1 *** empty log message ***
nipkow
parents: 13042
diff changeset
   559
*** HOL ***
8e86582a90d1 *** empty log message ***
nipkow
parents: 13042
diff changeset
   560
13899
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   561
* arith(_tac)
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   562
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   563
 - Produces a counter example if it cannot prove a goal.
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   564
   Note that the counter example may be spurious if the goal is not a formula
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   565
   of quantifier-free linear arithmetic.
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   566
   In ProofGeneral the counter example appears in the trace buffer.
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   567
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   568
 - 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
   569
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   570
 - Calls full Presburger arithmetic (by Amine Chaieb) if quantifier-free
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   571
   linear arithmetic fails. This takes account of quantifiers and divisibility.
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   572
   Presburger arithmetic can also be called explicitly via presburger(_tac).
13899
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   573
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   574
* simp's arithmetic capabilities have been enhanced a bit: it now
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   575
takes ~= in premises into account (by performing a case split);
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   576
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   577
* 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
   578
are distributed over a sum of terms;
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   579
13735
7de9342aca7a HOL-Algebra partially ported to Isar.
ballarin
parents: 13648
diff changeset
   580
* New tactic "trans_tac" and method "trans" instantiate
7de9342aca7a HOL-Algebra partially ported to Isar.
ballarin
parents: 13648
diff changeset
   581
Provers/linorder.ML for axclasses "order" and "linorder" (predicates
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   582
"<=", "<" and "=").
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   583
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   584
* function INCOMPATIBILITIES: Pi-sets have been redefined and moved from main
13587
659813a3f879 GroupTheory and FuncSet
paulson
parents: 13570
diff changeset
   585
HOL to Library/FuncSet; constant "Fun.op o" is now called "Fun.comp";
659813a3f879 GroupTheory and FuncSet
paulson
parents: 13570
diff changeset
   586
13443
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   587
* 'typedef' command has new option "open" to suppress the set
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   588
definition;
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   589
13522
934fffeb6f38 * Isar: preview of problems to finish 'show' now produce an error
wenzelm
parents: 13518
diff changeset
   590
* 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
   591
Finite_Set);
13492
6aae8eb39a18 *** empty log message ***
nipkow
parents: 13478
diff changeset
   592
13443
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   593
* attribute [symmetric] now works for relations as well; it turns
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   594
(x,y) : R^-1 into (y,x) : R, and vice versa;
1c3327c348b3 typedef: "open" option;
wenzelm
parents: 13425
diff changeset
   595
13613
531f1f524848 *** empty log message ***
nipkow
parents: 13587
diff changeset
   596
* induct over a !!-quantified statement (say !!x1..xn):
531f1f524848 *** empty log message ***
nipkow
parents: 13587
diff changeset
   597
  each "case" automatically performs "fix x1 .. xn" with exactly those names.
531f1f524848 *** empty log message ***
nipkow
parents: 13587
diff changeset
   598
13899
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   599
* Map: `empty' is no longer a constant but a syntactic abbreviation for
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   600
%x. None. Warning: empty_def now refers to the previously hidden definition
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   601
of the empty set.
12c7029d278b *** empty log message ***
nipkow
parents: 13881
diff changeset
   602
14018
3ef6c509f29c Improved entry on Algebra.
ballarin
parents: 14011
diff changeset
   603
* Algebra: formalization of classical algebra.  Intended as base for
3ef6c509f29c Improved entry on Algebra.
ballarin
parents: 14011
diff changeset
   604
any algebraic development in Isabelle.  Currently covers group theory
3ef6c509f29c Improved entry on Algebra.
ballarin
parents: 14011
diff changeset
   605
(up to Sylow's theorem) and ring theory (Universal Property of
3ef6c509f29c Improved entry on Algebra.
ballarin
parents: 14011
diff changeset
   606
Univariate Polynomials).  Contributions welcome;
13960
70f9158b6695 Complex, etc
paulson
parents: 13954
diff changeset
   607
70f9158b6695 Complex, etc
paulson
parents: 13954
diff changeset
   608
* GroupTheory: deleted, since its material has been moved to Algebra;
70f9158b6695 Complex, etc
paulson
parents: 13954
diff changeset
   609
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   610
* Complex: new directory of the complex numbers with numeric constants,
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   611
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
   612
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
   613
2160abf7cfe7 removal of the image HOL-Real and merging of HOL-Real-ex with HOL-Complex-ex
paulson
parents: 13960
diff changeset
   614
* 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
   615
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   616
* 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
   617
Fleuriot);
13960
70f9158b6695 Complex, etc
paulson
parents: 13954
diff changeset
   618
13549
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   619
* Real/HahnBanach: updated and adapted to locales;
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   620
13995
ab988a7a8a3b NEWS updated for HOL-Algebra.
ballarin
parents: 13966
diff changeset
   621
* NumberTheory: added Gauss's law of quadratic reciprocity (by Avigad,
ab988a7a8a3b NEWS updated for HOL-Algebra.
ballarin
parents: 13966
diff changeset
   622
Gray and Kramer);
13872
601514e63534 Gauss, UNITY, ZF
paulson
parents: 13868
diff changeset
   623
601514e63534 Gauss, UNITY, ZF
paulson
parents: 13868
diff changeset
   624
* UNITY: added the Meier-Sanders theory of progress sets;
601514e63534 Gauss, UNITY, ZF
paulson
parents: 13868
diff changeset
   625
14011
5fa103f5618c MicroJava LBV
kleing
parents: 14010
diff changeset
   626
* MicroJava: bytecode verifier and lightweight bytecode verifier
5fa103f5618c MicroJava LBV
kleing
parents: 14010
diff changeset
   627
as abstract algorithms, instantiated to the JVM;
5fa103f5618c MicroJava LBV
kleing
parents: 14010
diff changeset
   628
14010
schirmer
parents: 14008
diff changeset
   629
* Bali: Java source language formalization. Type system, operational
schirmer
parents: 14008
diff changeset
   630
semantics, axiomatic semantics. Supported language features:
schirmer
parents: 14008
diff changeset
   631
classes, interfaces, objects,virtual methods, static methods,
schirmer
parents: 14008
diff changeset
   632
static/instance fields, arrays, access modifiers, definite
schirmer
parents: 14008
diff changeset
   633
assignment, exceptions.
13549
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   634
14011
5fa103f5618c MicroJava LBV
kleing
parents: 14010
diff changeset
   635
13549
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   636
*** ZF ***
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   637
15154
db582d6e89de new isatool dimacs2hol
webertj
parents: 15148
diff changeset
   638
* ZF/Constructible: consistency proof for AC (Gdel's constructible
13549
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   639
universe, etc.);
f1522b892a4c updated;
wenzelm
parents: 13541
diff changeset
   640
13872
601514e63534 Gauss, UNITY, ZF
paulson
parents: 13868
diff changeset
   641
* Main ZF: virtually all theories converted to new-style format;
13518
a0749ce05100 *** empty log message ***
nipkow
parents: 13500
diff changeset
   642
13280
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents: 13190
diff changeset
   643
13478
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   644
*** ML ***
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   645
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   646
* Pure: Tactic.prove provides sane interface for internal proofs;
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   647
omits the infamous "standard" operation, so this is more appropriate
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   648
than prove_goalw_cterm in many situations (e.g. in simprocs);
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   649
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   650
* Pure: improved error reporting of simprocs;
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   651
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   652
* Provers: Simplifier.simproc(_i) provides sane interface for setting
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   653
up simprocs;
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   654
9cfbcb9acfef * Pure: improved error reporting of simprocs;
wenzelm
parents: 13463
diff changeset
   655
13953
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   656
*** Document preparation ***
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   657
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   658
* uses \par instead of \\ for line breaks in theory text. This may
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   659
shift some page breaks in large documents. To get the old behaviour
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   660
use \renewcommand{\isanewline}{\mbox{}\\\mbox{}} in root.tex.
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   661
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   662
* minimized dependencies of isabelle.sty and isabellesym.sty on
13953
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   663
other packages
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   664
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   665
* \<euro> now needs package babel/greek instead of marvosym (which
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   666
broke \Rightarrow)
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   667
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   668
* normal size for \<zero>...\<nine> (uses \mathbf instead of
13954
2e989faba65a fixed \<0>..\<9> (-> \<zero>..\<nine>)
kleing
parents: 13953
diff changeset
   669
textcomp package)
13953
65b76920e108 document preparation tuning
kleing
parents: 13938
diff changeset
   670
13280
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents: 13190
diff changeset
   671
14572
wenzelm
parents: 14561
diff changeset
   672
12984
6071200efbf6 fixed date;
wenzelm
parents: 12964
diff changeset
   673
New in Isabelle2002 (March 2002)
6071200efbf6 fixed date;
wenzelm
parents: 12964
diff changeset
   674
--------------------------------
11474
wenzelm
parents: 11437
diff changeset
   675
11572
wenzelm
parents: 11551
diff changeset
   676
*** Document preparation ***
wenzelm
parents: 11551
diff changeset
   677
11842
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   678
* greatly simplified document preparation setup, including more
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   679
graceful interpretation of isatool usedir -i/-d/-D options, and more
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   680
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
   681
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
   682
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
   683
"isatool usedir -D output HOL Test && isatool document Test/output";
11842
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   684
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   685
* theory dependency graph may now be incorporated into documents;
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   686
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
   687
with \includegraphics of LaTeX;
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
parents: 11817
diff changeset
   688
11864
371ce685b0ec * proper spacing of consecutive markup elements, especially text
wenzelm
parents: 11842
diff changeset
   689
* proper spacing of consecutive markup elements, especially text
371ce685b0ec * proper spacing of consecutive markup elements, especially text
wenzelm
parents: 11842
diff changeset
   690
blocks after section headings;
371ce685b0ec * proper spacing of consecutive markup elements, especially text
wenzelm
parents: 11842
diff changeset
   691
11572
wenzelm
parents: 11551
diff changeset
   692
* support bold style (for single symbols only), input syntax is like
wenzelm
parents: 11551
diff changeset
   693
this: "\<^bold>\<alpha>" or "\<^bold>A";
wenzelm
parents: 11551
diff changeset
   694
11814
wenzelm
parents: 11802
diff changeset
   695
* \<bullet> is now output as bold \cdot by default, which looks much
11572
wenzelm
parents: 11551
diff changeset
   696
better in printed text;
wenzelm
parents: 11551
diff changeset
   697
11712
deb8cac87063 * added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
wenzelm
parents: 11702
diff changeset
   698
* added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
deb8cac87063 * added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
wenzelm
parents: 11702
diff changeset
   699
note that these symbols are currently unavailable in Proof General /
12769
wenzelm
parents: 12754
diff changeset
   700
X-Symbol; new symbols \<zero>, \<one>, ..., \<nine>, and \<euro>;
12690
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
   701
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
   702
* isatool latex no longer depends on changed TEXINPUTS, instead
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
   703
isatool document copies the Isabelle style files to the target
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
   704
location;
11712
deb8cac87063 * added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
wenzelm
parents: 11702
diff changeset
   705
11572
wenzelm
parents: 11551
diff changeset
   706
11633
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   707
*** Isar ***
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   708
12312
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   709
* Pure/Provers: improved proof by cases and induction;
12280
wenzelm
parents: 12253
diff changeset
   710
  - 'case' command admits impromptu naming of parameters (such as
wenzelm
parents: 12253
diff changeset
   711
    "case (Suc n)");
wenzelm
parents: 12253
diff changeset
   712
  - 'induct' method divinates rule instantiation from the inductive
wenzelm
parents: 12253
diff changeset
   713
    claim; no longer requires excessive ?P bindings for proper
wenzelm
parents: 12253
diff changeset
   714
    instantiation of cases;
wenzelm
parents: 12253
diff changeset
   715
  - 'induct' method properly enumerates all possibilities of set/type
wenzelm
parents: 12253
diff changeset
   716
    rules; as a consequence facts may be also passed through *type*
wenzelm
parents: 12253
diff changeset
   717
    rules without further ado;
wenzelm
parents: 12253
diff changeset
   718
  - 'induct' method now derives symbolic cases from the *rulified*
wenzelm
parents: 12253
diff changeset
   719
    rule (before it used to rulify cases stemming from the internal
wenzelm
parents: 12253
diff changeset
   720
    atomized version); this means that the context of a non-atomic
wenzelm
parents: 12253
diff changeset
   721
    statement becomes is included in the hypothesis, avoiding the
wenzelm
parents: 12253
diff changeset
   722
    slightly cumbersome show "PROP ?case" form;
wenzelm
parents: 12253
diff changeset
   723
  - 'induct' may now use elim-style induction rules without chaining
wenzelm
parents: 12253
diff changeset
   724
    facts, using ``missing'' premises from the goal state; this allows
wenzelm
parents: 12253
diff changeset
   725
    rules stemming from inductive sets to be applied in unstructured
wenzelm
parents: 12253
diff changeset
   726
    scripts, while still benefitting from proper handling of non-atomic
wenzelm
parents: 12253
diff changeset
   727
    statements; NB: major inductive premises need to be put first, all
wenzelm
parents: 12253
diff changeset
   728
    the rest of the goal is passed through the induction;
wenzelm
parents: 12253
diff changeset
   729
  - 'induct' proper support for mutual induction involving non-atomic
wenzelm
parents: 12253
diff changeset
   730
    rule statements (uses the new concept of simultaneous goals, see
wenzelm
parents: 12253
diff changeset
   731
    below);
12853
de505273c971 Isar cases/induct: no backtracking;
wenzelm
parents: 12850
diff changeset
   732
  - append all possible rule selections, but only use the first
de505273c971 Isar cases/induct: no backtracking;
wenzelm
parents: 12850
diff changeset
   733
    success (no backtracking);
11995
4a622f5fb164 - 'induct' may now use elim-style induction rules without chaining
wenzelm
parents: 11986
diff changeset
   734
  - 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
   735
  - 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
   736
  - 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
   737
    General versions);
11995
4a622f5fb164 - 'induct' may now use elim-style induction rules without chaining
wenzelm
parents: 11986
diff changeset
   738
  - 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
   739
  - 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
   740
12163
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   741
* Pure: support multiple simultaneous goal statements, for example
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   742
"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
   743
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
   744
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
   745
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
   746
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
   747
fails:
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   748
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   749
  assume "A & B" then have A and B ..   (*".." fails*)
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   750
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   751
better use "obtain" in situations as above; alternative refer to
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   752
multi-step methods like 'auto', 'simp_all', 'blast+' etc.;
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   753
12078
4eb8061286e5 * Isar/Pure: proper integration with ``locales''; unlike the original
wenzelm
parents: 12034
diff changeset
   754
* Pure: proper integration with ``locales''; unlike the original
15154
db582d6e89de new isatool dimacs2hol
webertj
parents: 15148
diff changeset
   755
version by Florian Kammller, Isar locales package high-level proof
12078
4eb8061286e5 * Isar/Pure: proper integration with ``locales''; unlike the original
wenzelm
parents: 12034
diff changeset
   756
contexts rather than raw logical ones (e.g. we admit to include
12280
wenzelm
parents: 12253
diff changeset
   757
attributes everywhere); operations on locales include merge and
12964
wenzelm
parents: 12924
diff changeset
   758
rename; support for implicit arguments (``structures''); simultaneous
wenzelm
parents: 12924
diff changeset
   759
type-inference over imports and text; see also HOL/ex/Locales.thy for
wenzelm
parents: 12924
diff changeset
   760
some examples;
12078
4eb8061286e5 * Isar/Pure: proper integration with ``locales''; unlike the original
wenzelm
parents: 12034
diff changeset
   761
12707
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   762
* Pure: the following commands have been ``localized'', supporting a
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   763
target locale specification "(in name)": 'lemma', 'theorem',
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   764
'corollary', 'lemmas', 'theorems', 'declare'; the results will be
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   765
stored both within the locale and at the theory level (exported and
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   766
qualified by the locale name);
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   767
12964
wenzelm
parents: 12924
diff changeset
   768
* Pure: theory goals may now be specified in ``long'' form, with
wenzelm
parents: 12924
diff changeset
   769
ad-hoc contexts consisting of arbitrary locale elements. for example
wenzelm
parents: 12924
diff changeset
   770
``lemma foo: fixes x assumes "A x" shows "B x"'' (local syntax and
wenzelm
parents: 12924
diff changeset
   771
definitions may be given, too); the result is a meta-level rule with
wenzelm
parents: 12924
diff changeset
   772
the context elements being discharged in the obvious way;
wenzelm
parents: 12924
diff changeset
   773
wenzelm
parents: 12924
diff changeset
   774
* Pure: new proof command 'using' allows to augment currently used
wenzelm
parents: 12924
diff changeset
   775
facts after a goal statement ('using' is syntactically analogous to
wenzelm
parents: 12924
diff changeset
   776
'apply', but acts on the goal's facts only); this allows chained facts
wenzelm
parents: 12924
diff changeset
   777
to be separated into parts given before and after a claim, as in
wenzelm
parents: 12924
diff changeset
   778
``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
   779
11722
78cf55fd57c6 * Isar/Pure: fixed 'token_translation' command;
wenzelm
parents: 11712
diff changeset
   780
* Pure: renamed "antecedent" case to "rule_context";
78cf55fd57c6 * Isar/Pure: fixed 'token_translation' command;
wenzelm
parents: 11712
diff changeset
   781
12964
wenzelm
parents: 12924
diff changeset
   782
* Pure: new 'judgment' command records explicit information about the
wenzelm
parents: 12924
diff changeset
   783
object-logic embedding (used by several tools internally); no longer
wenzelm
parents: 12924
diff changeset
   784
use hard-wired "Trueprop";
wenzelm
parents: 12924
diff changeset
   785
11738
7c7a902a5c65 * Pure: added 'corollary' command;
wenzelm
parents: 11722
diff changeset
   786
* Pure: added 'corollary' command;
7c7a902a5c65 * Pure: added 'corollary' command;
wenzelm
parents: 11722
diff changeset
   787
11722
78cf55fd57c6 * Isar/Pure: fixed 'token_translation' command;
wenzelm
parents: 11712
diff changeset
   788
* Pure: fixed 'token_translation' command;
78cf55fd57c6 * Isar/Pure: fixed 'token_translation' command;
wenzelm
parents: 11712
diff changeset
   789
11899
e543b0f01a58 * Pure: removed obsolete 'exported' attribute;
wenzelm
parents: 11864
diff changeset
   790
* Pure: removed obsolete 'exported' attribute;
e543b0f01a58 * Pure: removed obsolete 'exported' attribute;
wenzelm
parents: 11864
diff changeset
   791
11933
wenzelm
parents: 11930
diff changeset
   792
* Pure: dummy pattern "_" in is/let is now automatically lifted over
wenzelm
parents: 11930
diff changeset
   793
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
   794
supersedes more cumbersome ... (is "ALL x. _ x --> ?C x");
e543b0f01a58 * Pure: removed obsolete 'exported' attribute;
wenzelm
parents: 11864
diff changeset
   795
11952
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
   796
* 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
   797
statements (atomic meta-level propositions); setup controlled via
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
   798
rewrite rules declarations of 'atomize' attribute; example
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
   799
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
   800
proof *scripts*;
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
   801
12106
4a8558dbb6a0 * Isar/Pure: emulation of instantiation tactics (rule_tac, cut_tac,
wenzelm
parents: 12078
diff changeset
   802
* 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
   803
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
   804
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
   805
especially important for locales);
4a8558dbb6a0 * Isar/Pure: emulation of instantiation tactics (rule_tac, cut_tac,
wenzelm
parents: 12078
diff changeset
   806
12312
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   807
* 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
   808
mode;
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   809
12405
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   810
* Pure/obtain: the formal conclusion "thesis", being marked as
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   811
``internal'', may no longer be reference directly in the text;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   812
potential INCOMPATIBILITY, may need to use "?thesis" in rare
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   813
situations;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   814
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   815
* Pure: generic 'sym' attribute which declares a rule both as pure
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   816
'elim?' and for the 'symmetric' operation;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   817
12877
b9635eb8a448 * Isar/Pure: marginal comments ``--'' may now occur just anywhere in the text;
wenzelm
parents: 12853
diff changeset
   818
* 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
   819
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
   820
discontinued;
b9635eb8a448 * Isar/Pure: marginal comments ``--'' may now occur just anywhere in the text;
wenzelm
parents: 12853
diff changeset
   821
13023
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
   822
* 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
   823
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
   824
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
   825
12364
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   826
* Pure/Provers/classical: simplified integration with pure rule
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   827
attributes and methods; the classical "intro?/elim?/dest?"
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   828
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
   829
includes classically swapped intros; "intro" and "elim" methods no
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   830
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
   831
AddXIs/AddXEs/AddXDs; all of this has some potential for
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   832
INCOMPATIBILITY;
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   833
12405
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   834
* Provers/classical: attribute 'swapped' produces classical inversions
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   835
of introduction rules;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   836
12364
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   837
* Provers/simplifier: 'simplified' attribute may refer to explicit
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   838
rules instead of full simplifier context; 'iff' attribute handles
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   839
conditional rules;
11936
fef099613354 * Provers: 'simplified' attribute may refer to explicit rules instead
wenzelm
parents: 11933
diff changeset
   840
11745
06cd8c3b5487 * HOL: 'typedef' now allows alternative names for Rep/Abs morphisms;
wenzelm
parents: 11738
diff changeset
   841
* 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
   842
11690
cb64368fb405 improved proof by cases and induction;
wenzelm
parents: 11663
diff changeset
   843
* HOL: 'recdef' now fails on unfinished automated proofs, use
11633
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   844
"(permissive)" option to recover old behavior;
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   845
11933
wenzelm
parents: 11930
diff changeset
   846
* HOL: 'inductive' no longer features separate (collective) attributes
wenzelm
parents: 11930
diff changeset
   847
for 'intros' (was found too confusing);
wenzelm
parents: 11930
diff changeset
   848
12405
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   849
* HOL: properly declared induction rules less_induct and
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   850
wf_induct_rule;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   851
11788
60054fee3c16 canonical 'cases'/'induct' rules for n-tuples (n=3..7)
kleing
parents: 11745
diff changeset
   852
11474
wenzelm
parents: 11437
diff changeset
   853
*** HOL ***
wenzelm
parents: 11437
diff changeset
   854
11702
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   855
* HOL: moved over to sane numeral syntax; the new policy is as
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   856
follows:
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   857
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   858
  - 0 and 1 are polymorphic constants, which are defined on any
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   859
  numeric type (nat, int, real etc.);
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   860
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   861
  - 2, 3, 4, ... and -1, -2, -3, ... are polymorphic numerals, based
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   862
  binary representation internally;
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   863
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   864
  - type nat has special constructor Suc, and generally prefers Suc 0
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   865
  over 1::nat and Suc (Suc 0) over 2::nat;
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   866
12364
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   867
This change may cause significant problems of INCOMPATIBILITY; here
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   868
are some hints on converting existing sources:
11702
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   869
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   870
  - due to the new "num" token, "-0" and "-1" etc. are now atomic
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   871
  entities, so expressions involving "-" (unary or binary minus) need
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   872
  to be spaced properly;
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   873
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   874
  - existing occurrences of "1" may need to be constraint "1::nat" or
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   875
  even replaced by Suc 0; similar for old "2";
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   876
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   877
  - replace "#nnn" by "nnn", and "#-nnn" by "-nnn";
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   878
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   879
  - remove all special provisions on numerals in proofs;
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   880
13042
wenzelm
parents: 13025
diff changeset
   881
* HOL: simp rules nat_number expand numerals on nat to Suc/0
12837
74ce01905e57 * HOL: nat_number_of;
wenzelm
parents: 12832
diff changeset
   882
representation (depends on bin_arith_simps in the default context);
74ce01905e57 * HOL: nat_number_of;
wenzelm
parents: 12832
diff changeset
   883
12736
80f10551fb59 * HOL: symbolic syntax for x^2 (numeral 2);
wenzelm
parents: 12734
diff changeset
   884
* HOL: symbolic syntax for x^2 (numeral 2);
80f10551fb59 * HOL: symbolic syntax for x^2 (numeral 2);
wenzelm
parents: 12734
diff changeset
   885
12335
db4d5f498742 * HOL: the class of all HOL types is now called "type" rather than
wenzelm
parents: 12312
diff changeset
   886
* 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
   887
"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
   888
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
   889
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
   890
"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
   891
12280
wenzelm
parents: 12253
diff changeset
   892
* HOL/record package improvements:
wenzelm
parents: 12253
diff changeset
   893
  - new derived operations "fields" to build a partial record section,
wenzelm
parents: 12253
diff changeset
   894
    "extend" to promote a fixed record to a record scheme, and
wenzelm
parents: 12253
diff changeset
   895
    "truncate" for the reverse; cf. theorems "xxx.defs", which are *not*
wenzelm
parents: 12253
diff changeset
   896
    declared as simp by default;
12587
3f3d2ffb5df5 HOL/record: shared operations ("more", "fields", etc.) now need to be
wenzelm
parents: 12564
diff changeset
   897
  - 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
   898
    qualified) --- potential INCOMPATIBILITY;
12280
wenzelm
parents: 12253
diff changeset
   899
  - removed "make_scheme" operations (use "make" with "extend") --
wenzelm
parents: 12253
diff changeset
   900
    INCOMPATIBILITY;
11937
2a2b1182a23b * HOL/record:
wenzelm
parents: 11936
diff changeset
   901
  - removed "more" class (simply use "term") -- INCOMPATIBILITY;
12253
1886dc96b7e9 * HOL/record: cases/induct for more parts;
wenzelm
parents: 12245
diff changeset
   902
  - provides cases/induct rules for use with corresponding Isar
1886dc96b7e9 * HOL/record: cases/induct for more parts;
wenzelm
parents: 12245
diff changeset
   903
    methods (for concrete records, record schemes, concrete more
12280
wenzelm
parents: 12253
diff changeset
   904
    parts, and schematic more parts -- in that order);
11930
1accec985349 * HOL/record:
wenzelm
parents: 11921
diff changeset
   905
  - internal definitions directly based on a light-weight abstract
1accec985349 * HOL/record:
wenzelm
parents: 11921
diff changeset
   906
    theory of product types over typedef rather than datatype;
1accec985349 * HOL/record:
wenzelm
parents: 11921
diff changeset
   907
13023
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
   908
* 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
   909
specifications; specific support for HOL constructs such as inductive
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
   910
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
   911
via 'generate_code' theory section;
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
   912
11933
wenzelm
parents: 11930
diff changeset
   913
* HOL: canonical cases/induct rules for n-tuples (n = 3..7);
wenzelm
parents: 11930
diff changeset
   914
13824
e4d8dea6dfc2 minor updates to pre-2002 release
paulson
parents: 13815
diff changeset
   915
* HOL: consolidated and renamed several theories.  In particular:
14731
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   916
        Ord.thy has been absorbed into HOL.thy
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   917
        String.thy has been absorbed into List.thy
5670fc027a3b Pure: nested comments in inner syntax;
wenzelm
parents: 14709
diff changeset
   918
11802
1d5f5d2427d2 * HOL: concrete setsum syntax "\<Sum>i:A. b" == "setsum (%i. b) A"
wenzelm
parents: 11797
diff changeset
   919
* 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
   920
(beware of argument permutation!);
1d5f5d2427d2 * HOL: concrete setsum syntax "\<Sum>i:A. b" == "setsum (%i. b) A"
wenzelm
parents: 11797
diff changeset
   921
11657
03c4a5c08a79 *** empty log message ***
wenzelm
parents: 11633
diff changeset
   922
* HOL: linorder_less_split superseded by linorder_cases;
03c4a5c08a79 *** empty log message ***
wenzelm
parents: 11633
diff changeset
   923
12917
0fd3caa5d8b2 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12899
diff changeset
   924
* HOL/List: "nodups" renamed to "distinct";
12889
1de4f0b824a8 *** empty log message ***
nipkow
parents: 12877
diff changeset
   925
11633
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   926
* HOL: added "The" definite description operator; move Hilbert's "Eps"
13824
e4d8dea6dfc2 minor updates to pre-2002 release
paulson
parents: 13815
diff changeset
   927
to peripheral theory "Hilbert_Choice"; some INCOMPATIBILITIES:
e4d8dea6dfc2 minor updates to pre-2002 release
paulson
parents: 13815
diff changeset
   928
  - Ex_def has changed, now need to use some_eq_ex
11437
2338bce575ae HOL: added "The";
wenzelm
parents: 11397
diff changeset
   929
11572
wenzelm
parents: 11551
diff changeset
   930
* HOL: made split_all_tac safe; EXISTING PROOFS MAY FAIL OR LOOP, so
wenzelm
parents: 11551
diff changeset
   931
in this (rare) case use:
wenzelm
parents: 11551
diff changeset
   932
wenzelm
parents: 11551
diff changeset
   933
  delSWrapper "split_all_tac"
wenzelm
parents: 11551
diff changeset
   934
  addSbefore ("unsafe_split_all_tac", unsafe_split_all_tac)
wenzelm
parents: 11551
diff changeset
   935
wenzelm
parents: 11551
diff changeset
   936
* HOL: added safe wrapper "split_conv_tac" to claset; EXISTING PROOFS
11474
wenzelm
parents: 11437
diff changeset
   937
MAY FAIL;
11361
879e53d92f51 *** empty log message ***
nipkow
parents: 11314
diff changeset
   938
11572
wenzelm
parents: 11551
diff changeset
   939
* HOL: introduced f^n = f o ... o f; warning: due to the limits of
wenzelm
parents: 11551
diff changeset
   940
Isabelle's type classes, ^ on functions and relations has too general
wenzelm
parents: 11551
diff changeset
   941
a domain, namely ('a * 'b) set and 'a => 'b; this means that it may be
wenzelm
parents: 11551
diff changeset
   942
necessary to attach explicit type constraints;
11307
891fbd3f4881 *** empty log message ***
nipkow
parents: 11241
diff changeset
   943
12917
0fd3caa5d8b2 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12899
diff changeset
   944
* HOL/Relation: the prefix name of the infix "O" has been changed from
0fd3caa5d8b2 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12899
diff changeset
   945
"comp" to "rel_comp"; INCOMPATIBILITY: a few theorems have been
0fd3caa5d8b2 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12899
diff changeset
   946
renamed accordingly (eg "compI" -> "rel_compI").
12489
c92e38c3cbaa *** empty log message ***
nipkow
parents: 12472
diff changeset
   947
11487
95071c9e85a3 * HOL: syntax translations now work properly with numerals and records
wenzelm
parents: 11475
diff changeset
   948
* 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
   949
expressions;
11474
wenzelm
parents: 11437
diff changeset
   950
12457
cbfc53e45476 * HOL: bounded abstraction now uses syntax "%" / "\<lambda>" instead
wenzelm
parents: 12405
diff changeset
   951
* HOL: bounded abstraction now uses syntax "%" / "\<lambda>" instead
cbfc53e45476 * HOL: bounded abstraction now uses syntax "%" / "\<lambda>" instead
wenzelm
parents: 12405
diff changeset
   952
of "lam" -- INCOMPATIBILITY;
11474
wenzelm
parents: 11437
diff changeset
   953
11933
wenzelm
parents: 11930
diff changeset
   954
* HOL: got rid of some global declarations (potential INCOMPATIBILITY
wenzelm
parents: 11930
diff changeset
   955
for ML tools): const "()" renamed "Product_Type.Unity", type "unit"
wenzelm
parents: 11930
diff changeset
   956
renamed "Product_Type.unit";
11611
b0c69f4db64c HOL: eliminated global items;
wenzelm
parents: 11572
diff changeset
   957
12564
226873bffa3a *** empty log message ***
nipkow
parents: 12563
diff changeset
   958
* HOL: renamed rtrancl_into_rtrancl2 to converse_rtrancl_into_rtrancl
226873bffa3a *** empty log message ***
nipkow
parents: 12563
diff changeset
   959
12924
02eb40cde931 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12917
diff changeset
   960
* HOL: removed obsolete theorem "optionE" (use "option.exhaust", or
02eb40cde931 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12917
diff changeset
   961
the "cases" method);
02eb40cde931 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12917
diff changeset
   962
12597
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
   963
* HOL/GroupTheory: group theory examples including Sylow's theorem (by
15154
db582d6e89de new isatool dimacs2hol
webertj
parents: 15148
diff changeset
   964
Florian Kammller);
12597
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
   965
12608
2df381faa787 * ZF/IMP: updated and converted to new-style theory format;
wenzelm
parents: 12597
diff changeset
   966
* 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
   967
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
   968
some explanations (by Gerwin Klein);
12597
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
   969
12734
c5f6d8259ecd HOL-Real/Complex_Numbers;
wenzelm
parents: 12728
diff changeset
   970
* HOL-Real: added Complex_Numbers (by Gertrud Bauer);
c5f6d8259ecd HOL-Real/Complex_Numbers;
wenzelm
parents: 12728
diff changeset
   971
12690
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
   972
* HOL-Hyperreal is now a logic image;
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
   973
11611
b0c69f4db64c HOL: eliminated global items;
wenzelm
parents: 11572
diff changeset
   974
12022
9c3377b133c0 HOLCF: proper rep_datatype lift (see theory Lift); use plain induct_tac
wenzelm
parents: 11995
diff changeset
   975
*** HOLCF ***
9c3377b133c0 HOLCF: proper rep_datatype lift (see theory Lift); use plain induct_tac
wenzelm
parents: 11995
diff changeset
   976
12622
wenzelm
parents: 12608
diff changeset
   977
* Isar: consts/constdefs supports mixfix syntax for continuous
wenzelm
parents: 12608
diff changeset
   978
operations;
wenzelm
parents: 12608
diff changeset
   979
wenzelm
parents: 12608
diff changeset
   980
* Isar: domain package adapted to new-style theory format, e.g. see
wenzelm
parents: 12608
diff changeset
   981
HOLCF/ex/Dnat.thy;
wenzelm
parents: 12608
diff changeset
   982
wenzelm
parents: 12608
diff changeset
   983
* theory Lift: proper use of rep_datatype lift instead of ML hacks --
12280
wenzelm
parents: 12253
diff changeset
   984
potential INCOMPATIBILITY; now use plain induct_tac instead of former
wenzelm
parents: 12253
diff changeset
   985
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
   986
12597
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
   987
* 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
   988
12022
9c3377b133c0 HOLCF: proper rep_datatype lift (see theory Lift); use plain induct_tac
wenzelm
parents: 11995
diff changeset
   989
11474
wenzelm
parents: 11437
diff changeset
   990
*** ZF ***
wenzelm
parents: 11437
diff changeset
   991
12622
wenzelm
parents: 12608
diff changeset
   992
* Isar: proper integration of logic-specific tools and packages,
wenzelm
parents: 12608
diff changeset
   993
including theory commands '(co)inductive', '(co)datatype',
wenzelm
parents: 12608
diff changeset
   994
'rep_datatype', 'inductive_cases', as well as methods 'ind_cases',
wenzelm
parents: 12608
diff changeset
   995
'induct_tac', 'case_tac', and 'typecheck' (with attribute 'TC');
wenzelm
parents: 12608
diff changeset
   996
wenzelm
parents: 12608
diff changeset
   997
* theory Main no longer includes AC; for the Axiom of Choice, base
wenzelm
parents: 12608
diff changeset
   998
your theory on Main_ZFC;
wenzelm
parents: 12608
diff changeset
   999
wenzelm
parents: 12608
diff changeset
  1000
* the integer library now covers quotients and remainders, with many
wenzelm
parents: 12608
diff changeset
  1001
laws relating division to addition, multiplication, etc.;
12563
3813bcab493d ZF/Main
paulson
parents: 12538
diff changeset
  1002
12280
wenzelm
parents: 12253
diff changeset
  1003
* ZF/UNITY: Chandy and Misra's UNITY is now available in ZF, giving a
wenzelm
parents: 12253
diff changeset
  1004
typeless version of the formalism;
wenzelm
parents: 12253
diff changeset
  1005
13025
wenzelm
parents: 13023
diff changeset
  1006
* ZF/AC, Coind, IMP, Resid: updated and converted to new-style theory
wenzelm
parents: 13023
diff changeset
  1007
format;
12608
2df381faa787 * ZF/IMP: updated and converted to new-style theory format;
wenzelm
parents: 12597
diff changeset
  1008
12280
wenzelm
parents: 12253
diff changeset
  1009
* 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
  1010
including theory Multiset for multiset orderings; converted to
2df381faa787 * ZF/IMP: updated and converted to new-style theory format;
wenzelm
parents: 12597
diff changeset
  1011
new-style theory format;
12177
b1c16d685a99 * ZF: new-style theory commands 'inductive', 'inductive_cases', and
wenzelm
parents: 12163
diff changeset
  1012
13025
wenzelm
parents: 13023
diff changeset
  1013
* ZF: many new theorems about lists, ordinals, etc.;
12850
paulson
parents: 12837
diff changeset
  1014
11474
wenzelm
parents: 11437
diff changeset
  1015
wenzelm
parents: 11437
diff changeset
  1016
*** General ***
wenzelm
parents: 11437
diff changeset
  1017
12280
wenzelm
parents: 12253
diff changeset
  1018
* Pure/kernel: meta-level proof terms (by Stefan Berghofer); reference
wenzelm
parents: 12253
diff changeset
  1019
variable proof controls level of detail: 0 = no proofs (only oracle
wenzelm
parents: 12253
diff changeset
  1020
dependencies), 1 = lemma dependencies, 2 = compact proof terms; see
wenzelm
parents: 12253
diff changeset
  1021
also ref manual for further ML interfaces;
wenzelm
parents: 12253
diff changeset
  1022
wenzelm
parents: 12253
diff changeset
  1023
* Pure/axclass: removed obsolete ML interface
wenzelm
parents: 12253
diff changeset
  1024
goal_subclass/goal_arity;
wenzelm
parents: 12253
diff changeset
  1025
wenzelm
parents: 12253
diff changeset
  1026
* Pure/syntax: new token syntax "num" for plain numerals (without "#"
wenzelm
parents: 12253
diff changeset
  1027
of "xnum"); potential INCOMPATIBILITY, since -0, -1 etc. are now
wenzelm
parents: 12253
diff changeset
  1028
separate tokens, so expressions involving minus need to be spaced
wenzelm
parents: 12253
diff changeset
  1029
properly;
wenzelm
parents: 12253
diff changeset
  1030
12312
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
  1031
* 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
  1032
rather than "infixl" or "infixr";
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
  1033
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
  1034
* 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
  1035
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
  1036
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
  1037
type variable);
12280
wenzelm
parents: 12253
diff changeset
  1038
wenzelm
parents: 12253
diff changeset
  1039
* Pure/syntax: print modes "type_brackets" and "no_type_brackets"
wenzelm
parents: 12253
diff changeset
  1040
control output of nested => (types); the default behavior is
wenzelm
parents: 12253
diff changeset
  1041
"type_brackets";
wenzelm
parents: 12253
diff changeset
  1042
wenzelm
parents: 12253
diff changeset
  1043
* Pure/syntax: builtin parse translation for "_constify" turns valued
11817
wenzelm
parents: 11814
diff changeset
  1044
tokens into AST constants;
11474
wenzelm
parents: 11437
diff changeset
  1045
12280
wenzelm
parents: 12253
diff changeset
  1046
* Pure/syntax: prefer later declarations of translations and print
wenzelm
parents: 12253
diff changeset
  1047
translation functions; potential INCOMPATIBILITY: need to reverse
wenzelm
parents: 12253
diff changeset
  1048
multiple declarations for same syntax element constant;
wenzelm
parents: 12253
diff changeset
  1049
12832
c31b44286a8a * Pure/show_hyps reset by default (in accordance to existing Isar practice);
wenzelm
parents: 12777
diff changeset
  1050
* 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
  1051
practice);
c31b44286a8a * Pure/show_hyps reset by default (in accordance to existing Isar practice);
wenzelm
parents: 12777
diff changeset
  1052
12280
wenzelm
parents: 12253
diff changeset
  1053
* Provers/classical: renamed addaltern to addafter, addSaltern to
wenzelm
parents: 12253
diff changeset
  1054
addSafter;
wenzelm
parents: 12253
diff changeset
  1055
wenzelm
parents: 12253
diff changeset
  1056
* Provers/clasimp: ``iff'' declarations now handle conditional rules
wenzelm
parents: 12253
diff changeset
  1057
as well;
12253
1886dc96b7e9 * HOL/record: cases/induct for more parts;
wenzelm
parents: 12245
diff changeset
  1058
12538
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
  1059
* system: tested support for MacOS X; should be able to get Isabelle +
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
  1060
Proof General to work in a plain Terminal after installing Poly/ML
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
  1061
(e.g. from the Isabelle distribution area) and GNU bash alone
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
  1062
(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
  1063
support requires further installations, e.g. from
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
  1064
http://fink.sourceforge.net/);
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
  1065
12280
wenzelm
parents: 12253
diff changeset
  1066
* 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
  1067
12753
3a62df7ae926 * system: reduced base memory usage by Poly/ML (approx. 20 MB instead
wenzelm
parents: 12736
diff changeset
  1068
* 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
  1069
of 40 MB), cf. ML_OPTIONS;
3a62df7ae926 * system: reduced base memory usage by Poly/ML (approx. 20 MB instead
wenzelm
parents: 12736
diff changeset
  1070
11633
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
  1071
* system: Proof General keywords specification is now part of the
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
  1072
Isabelle distribution (see etc/isar-keywords.el);
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
  1073
12728
wenzelm
parents: 12724
diff changeset
  1074
* system: support for persistent Proof General sessions (refrain from
wenzelm
parents: 12724
diff changeset
  1075
outdating all loaded theories on startup); user may create writable
wenzelm
parents: 12724
diff changeset
  1076
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
  1077
11551
8b5064d1c5c9 * system: support Poly/ML 4.1.1 (large heaps);
wenzelm
parents: 11549
diff changeset
  1078
* system: smart selection of Isabelle process versus Isabelle
11572
wenzelm
parents: 11551
diff changeset
  1079
interface, accommodates case-insensitive file systems (e.g. HFS+); may
wenzelm
parents: 11551
diff changeset
  1080
run both "isabelle" and "Isabelle" even if file names are badly
wenzelm
parents: 11551
diff changeset
  1081
damaged (executable inspects the case of the first letter of its own
wenzelm
parents: 11551
diff changeset
  1082
name); added separate "isabelle-process" and "isabelle-interface";
11551
8b5064d1c5c9 * system: support Poly/ML 4.1.1 (large heaps);
wenzelm
parents: 11549
diff changeset
  1083
12472
wenzelm
parents: 12467
diff changeset
  1084
* system: refrain from any attempt at filtering input streams; no
wenzelm
parents: 12467
diff changeset
  1085
longer support ``8bit'' encoding of old isabelle font, instead proper
wenzelm
parents: 12467
diff changeset
  1086
iso-latin characters may now be used; the related isatools
wenzelm
parents: 12467
diff changeset
  1087
"symbolinput" and "nonascii" have disappeared as well;
wenzelm
parents: 12467
diff changeset
  1088
wenzelm
parents: 12467
diff changeset
  1089
* system: removed old "xterm" interface (the print modes "xterm" and
wenzelm
parents: 12467
diff changeset
  1090
"xterm_color" are still available for direct use in a suitable
wenzelm
parents: 12467
diff changeset
  1091
terminal);
wenzelm
parents: 12467
diff changeset
  1092
11314
f6eebbbed449 ZF: division
paulson
parents: 11307
diff changeset
  1093
11169
98c2f741e32b made split_all_tac safe introducing safe_full_simp_tac, EXISTING PROOFS MAY FAIL
oheimb
parents: 11130
diff changeset
  1094
11062
wenzelm
parents: 11050
diff changeset
  1095
New in Isabelle99-2 (February 2001)
wenzelm
parents: 11050
diff changeset
  1096
-----------------------------------
wenzelm
parents: 11050
diff changeset
  1097
10224
7263c856787e *** empty log message ***
nipkow
parents: 10164
diff changeset
  1098
*** Overview of INCOMPATIBILITIES ***
7263c856787e *** empty log message ***
nipkow
parents: 10164
diff changeset
  1099
11241
61b21aacf04a Isar hint
paulson
parents: 11181
diff changeset
  1100
* HOL: please note that theories in the Library and elsewhere often use the
61b21aacf04a Isar hint
paulson
parents: 11181
diff changeset
  1101
new-style (Isar) format; to refer to their theorems in an ML script you must
12622
wenzelm
parents: 12608
diff changeset
  1102
bind them to ML identifers by e.g.      val thm_name = thm "thm_name";
11241
61b21aacf04a Isar hint
paulson
parents: 11181
diff changeset
  1103
11043
2e3bbac8763b HOL: inductive package no longer splits induction rule aggressively,
wenzelm
parents: 11016
diff changeset
  1104
* HOL: inductive package no longer splits induction rule aggressively,
2e3bbac8763b HOL: inductive package no longer splits induction rule aggressively,
wenzelm
parents: 11016
diff changeset
  1105
but only as far as specified by the introductions given; the old
11130
d14fd58615b9 added missiong word
oheimb
parents: 11124
diff changeset
  1106
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
  1107
'split_rule (complete)';
2e3bbac8763b HOL: inductive package no longer splits induction rule aggressively,
wenzelm
parents: 11016
diff changeset
  1108
10998
wenzelm
parents: 10976
diff changeset
  1109
* HOL: induct renamed to lfp_induct, lfp_Tarski to lfp_unfold,
wenzelm
parents: 10976
diff changeset
  1110
gfp_Tarski to gfp_unfold;
10224
7263c856787e *** empty log message ***
nipkow
parents: 10164
diff changeset
  1111
10288
00abecbfa46a contrapos
paulson
parents: 10245
diff changeset
  1112
* HOL: contrapos, contrapos2 renamed to contrapos_nn, contrapos_pp;
00abecbfa46a contrapos
paulson
parents: 10245
diff changeset
  1113
10858
wenzelm
parents: 10856
diff changeset
  1114
* HOL: infix "dvd" now has priority 50 rather than 70 (because it is a
wenzelm
parents: 10856
diff changeset
  1115
relation); infix "^^" has been renamed "``"; infix "``" has been
wenzelm
parents: 10856
diff changeset
  1116
renamed "`"; "univalent" has been renamed "single_valued";
10793
4d6cf7702e3c *** empty log message ***
nipkow
parents: 10770
diff changeset
  1117
10998
wenzelm
parents: 10976
diff changeset
  1118
* HOL/Real: "rinv" and "hrinv" replaced by overloaded "inverse"
wenzelm
parents: 10976
diff changeset
  1119
operation;
wenzelm
parents: 10976
diff changeset
  1120
10868
5af3906edec8 *** empty log message ***
nipkow
parents: 10862
diff changeset
  1121
* HOLCF: infix "`" has been renamed "$"; the symbol syntax is \<cdot>;
10856
e8a5340418b6 *** empty log message ***
nipkow
parents: 10799
diff changeset
  1122
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1123
* Isar: 'obtain' no longer declares "that" fact as simp/intro;
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1124
10401
58bb50f69497 * Isar/HOL: method 'induct' now handles non-atomic goals; as a
wenzelm
parents: 10391
diff changeset
  1125
* 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
  1126
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
  1127
(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
  1128
10976
0e7cf6f9fa29 * Document preparation: renamed standard symbols \<ll> to \<lless> and
wenzelm
parents: 10966
diff changeset
  1129
* Document preparation: renamed standard symbols \<ll> to \<lless> and
0e7cf6f9fa29 * Document preparation: renamed standard symbols \<ll> to \<lless> and
wenzelm
parents: 10966
diff changeset
  1130
\<gg> to \<ggreater>;
0e7cf6f9fa29 * Document preparation: renamed standard symbols \<ll> to \<lless> and
wenzelm
parents: 10966
diff changeset
  1131
10224
7263c856787e *** empty log message ***
nipkow
parents: 10164
diff changeset
  1132
10245
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1133
*** Document preparation ***
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1134
10858
wenzelm
parents: 10856
diff changeset
  1135
* \isabellestyle{NAME} selects version of Isabelle output (currently
wenzelm
parents: 10856
diff changeset
  1136
available: are "it" for near math-mode best-style output, "sl" for
wenzelm
parents: 10856
diff changeset
  1137
slanted text style, and "tt" for plain type-writer; if no
wenzelm
parents: 10856
diff changeset
  1138
\isabellestyle command is given, output is according to slanted
wenzelm
parents: 10856
diff changeset
  1139
type-writer);
wenzelm
parents: 10856
diff changeset
  1140
10322
df38c61bf541 * support sub/super scripts (for single symbols only), input syntax is
wenzelm
parents: 10306
diff changeset
  1141
* 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
  1142
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
  1143
10858
wenzelm
parents: 10856
diff changeset
  1144
* some more standard symbols; see Appendix A of the system manual for
11062
wenzelm
parents: 11050
diff changeset
  1145
the complete list of symbols defined in isabellesym.sty;
10858
wenzelm
parents: 10856
diff changeset
  1146
10998
wenzelm
parents: 10976
diff changeset
  1147
* improved isabelle style files; more abstract symbol implementation
wenzelm
parents: 10976
diff changeset
  1148
(should now use \isamath{...} and \isatext{...} in custom symbol
wenzelm
parents: 10976
diff changeset
  1149
definitions);
wenzelm
parents: 10976
diff changeset
  1150
10634
wenzelm
parents: 10609
diff changeset
  1151
* antiquotation @{goals} and @{subgoals} for output of *dynamic* goals
wenzelm
parents: 10609
diff changeset
  1152
state; Note that presentation of goal states does not conform to
wenzelm
parents: 10609
diff changeset
  1153
actual human-readable proof documents.  Please do not include goal
wenzelm
parents: 10609
diff changeset
  1154
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
  1155
11062
wenzelm
parents: 11050
diff changeset
  1156
* proper indentation of antiquoted output with proportional LaTeX
wenzelm
parents: 11050
diff changeset
  1157
fonts;
10862
857688d775b0 isatool unsymbolize;
wenzelm
parents: 10858
diff changeset
  1158
11050
ac5709ac50b9 * no_document ML operator temporarily disables LaTeX document
wenzelm
parents: 11043
diff changeset
  1159
* no_document ML operator temporarily disables LaTeX document
ac5709ac50b9 * no_document ML operator temporarily disables LaTeX document
wenzelm
parents: 11043
diff changeset
  1160
generation;
ac5709ac50b9 * no_document ML operator temporarily disables LaTeX document
wenzelm
parents: 11043
diff changeset
  1161
11062
wenzelm
parents: 11050
diff changeset
  1162
* isatool unsymbolize tunes sources for plain ASCII communication;
wenzelm
parents: 11050
diff changeset
  1163
10322
df38c61bf541 * support sub/super scripts (for single symbols only), input syntax is
wenzelm
parents: 10306
diff changeset
  1164
10306
b0ab988a27a9 * HOL: default proof step now includes 'intro_classes';
wenzelm
parents: 10288
diff changeset
  1165
*** Isar ***
b0ab988a27a9 * HOL: default proof step now includes 'intro_classes';
wenzelm
parents: 10288
diff changeset
  1166
10547
wenzelm
parents: 10514
diff changeset
  1167
* Pure: Isar now suffers initial goal statements to contain unbound
wenzelm
parents: 10514
diff changeset
  1168
schematic variables (this does not conform to actual readable proof
wenzelm
parents: 10514
diff changeset
  1169
documents, due to unpredictable outcome and non-compositional proof
wenzelm
parents: 10514
diff changeset
  1170
checking); users who know what they are doing may use schematic goals
wenzelm
parents: 10514
diff changeset
  1171
for Prolog-style synthesis of proven results;
wenzelm
parents: 10514
diff changeset
  1172
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1173
* Pure: assumption method (an implicit finishing) now handles actual
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1174
rules as well;
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1175
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1176
* Pure: improved 'obtain' --- moved to Pure, insert "that" into
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1177
initial goal, declare "that" only as Pure intro (only for single
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1178
steps); the "that" rule assumption may now be involved in implicit
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1179
finishing, thus ".." becomes a feasible for trivial obtains;
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1180
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1181
* Pure: default proof step now includes 'intro_classes'; thus trivial
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1182
instance proofs may be performed by "..";
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1183
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1184
* Pure: ?thesis / ?this / "..." now work for pure meta-level
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1185
statements as well;
10306
b0ab988a27a9 * HOL: default proof step now includes 'intro_classes';
wenzelm
parents: 10288
diff changeset
  1186
11097
c1be9f2dff4c more robust selection of calculational rules;
wenzelm
parents: 11094
diff changeset
  1187
* Pure: more robust selection of calculational rules;
c1be9f2dff4c more robust selection of calculational rules;
wenzelm
parents: 11094
diff changeset
  1188
10858
wenzelm
parents: 10856
diff changeset
  1189
* Pure: the builtin notion of 'finished' goal now includes the ==-refl
wenzelm
parents: 10856
diff changeset
  1190
rule (as well as the assumption rule);
wenzelm
parents: 10856
diff changeset
  1191
wenzelm
parents: 10856
diff changeset
  1192
* Pure: 'thm_deps' command visualizes dependencies of theorems and
wenzelm
parents: 10856
diff changeset
  1193
lemmas, using the graph browser tool;
wenzelm
parents: 10856
diff changeset
  1194
10944
710ddb9e8b5e *** empty log message ***
wenzelm
parents: 10915
diff changeset
  1195
* Pure: predict failure of "show" in interactive mode;
710ddb9e8b5e *** empty log message ***
wenzelm
parents: 10915
diff changeset
  1196
11016
8f8ba41a5e7a * Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents: 10998
diff changeset
  1197
* Pure: 'thms_containing' now takes actual terms as arguments;
8f8ba41a5e7a * Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents: 10998
diff changeset
  1198
10401
58bb50f69497 * Isar/HOL: method 'induct' now handles non-atomic goals; as a
wenzelm
parents: 10391
diff changeset
  1199
* 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
  1200
(potential INCOMPATIBILITY); tuned error handling;
58bb50f69497 * Isar/HOL: method 'induct' now handles non-atomic goals; as a
wenzelm
parents: 10391
diff changeset
  1201
10557
wenzelm
parents: 10547
diff changeset
  1202
* HOL: cases and induct rules now provide explicit hints about the
10547
wenzelm
parents: 10514
diff changeset
  1203
number of facts to be consumed (0 for "type" and 1 for "set" rules);
wenzelm
parents: 10514
diff changeset
  1204
any remaining facts are inserted into the goal verbatim;
wenzelm
parents: 10514
diff changeset
  1205
10858
wenzelm
parents: 10856
diff changeset
  1206
* HOL: local contexts (aka cases) may now contain term bindings as
wenzelm
parents: 10856
diff changeset
  1207
well; the 'cases' and 'induct' methods new provide a ?case binding for
wenzelm
parents: 10856
diff changeset
  1208
the result to be shown in each case;
wenzelm
parents: 10856
diff changeset
  1209
10770
4858ad0b8f38 * Isar/HOL: added 'recdef_tc' command;
wenzelm
parents: 10756
diff changeset
  1210
* HOL: added 'recdef_tc' command;
4858ad0b8f38 * Isar/HOL: added 'recdef_tc' command;
wenzelm
parents: 10756
diff changeset
  1211
11016
8f8ba41a5e7a * Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents: 10998
diff changeset
  1212
* isatool convert assists in eliminating legacy ML scripts;
8f8ba41a5e7a * Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents: 10998
diff changeset
  1213
10306
b0ab988a27a9 * HOL: default proof step now includes 'intro_classes';
wenzelm
parents: 10288
diff changeset
  1214
10245
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1215
*** HOL ***
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1216
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1217
* 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
  1218
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
  1219
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
  1220
HOL/Induct/Multiset, HOL/Induct/Acc (as Accessible_Part), HOL/While
10337
fca9cd9fd115 added HOL/Library/List_Prefix;
wenzelm
parents: 10322
diff changeset
  1221
(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
  1222
10966
8f2c27041a8e added HOL-Unix example;
wenzelm
parents: 10944
diff changeset
  1223
* HOL/Unix: "Some aspects of Unix file-system security", a typical
8f2c27041a8e added HOL-Unix example;
wenzelm
parents: 10944
diff changeset
  1224
modelling and verification task performed in Isabelle/HOL +
8f2c27041a8e added HOL-Unix example;
wenzelm
parents: 10944
diff changeset
  1225
Isabelle/Isar + Isabelle document preparation (by Markus Wenzel).
8f2c27041a8e added HOL-Unix example;
wenzelm
parents: 10944
diff changeset
  1226
11094
wenzelm
parents: 11091
diff changeset
  1227
* HOL/Algebra: special summation operator SUM no longer exists, it has
wenzelm
parents: 11091
diff changeset
  1228
been replaced by setsum; infix 'assoc' now has priority 50 (like
wenzelm
parents: 11091
diff changeset
  1229
'dvd'); axiom 'one_not_zero' has been moved from axclass 'ring' to
wenzelm
parents: 11091
diff changeset
  1230
'domain', this makes the theory consistent with mathematical
wenzelm
parents: 11091
diff changeset
  1231
literature;
wenzelm
parents: 11091
diff changeset
  1232
10514
3db037155f0e * HOL: syntax or "abs";
wenzelm
parents: 10474
diff changeset
  1233
* HOL basics: added overloaded operations "inverse" and "divide"
10726
wenzelm
parents: 10664
diff changeset
  1234
(infix "/"), syntax for generic "abs" operation, generic summation
11094
wenzelm
parents: 11091
diff changeset
  1235
operator \<Sum>;
10452
abeefb0a79ae * added overloaded operations "inverse" and "divide" (infix "/");
wenzelm
parents: 10428
diff changeset
  1236
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1237
* HOL/typedef: simplified package, provide more useful rules (see also
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1238
HOL/subset.thy);
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1239
10915
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1240
* HOL/datatype: induction rule for arbitrarily branching datatypes is
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1241
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
  1242
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
  1243
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1244
* 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
  1245
to "split_conv" (old name still available for compatibility);
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1246
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1247
* 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
  1248
rules with string literals);
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
  1249
12245
3dd9aae402bb Hyperreal
paulson
parents: 12210
diff changeset
  1250
* HOL-Real-Hyperreal: this extends HOL-Real with the hyperreals
3dd9aae402bb Hyperreal
paulson
parents: 12210
diff changeset
  1251
 and Fleuriot's mechanization of analysis, including the transcendental
3dd9aae402bb Hyperreal
paulson
parents: 12210
diff changeset
  1252
 functions for the reals;
10756
831c864cc56e Hyperreal
paulson
parents: 10726
diff changeset
  1253
11094
wenzelm
parents: 11091
diff changeset
  1254
* HOL/Real, HOL/Hyperreal: improved arithmetic simplification;
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1255
10858
wenzelm
parents: 10856
diff changeset
  1256
10474
paulson
parents: 10461
diff changeset
  1257
*** CTT ***
paulson
parents: 10461
diff changeset
  1258
10547
wenzelm
parents: 10514
diff changeset
  1259
* CTT: x-symbol support for Pi, Sigma, -->, : (membership); note that
wenzelm
parents: 10514
diff changeset
  1260
"lam" is displayed as TWO lambda-symbols
10474
paulson
parents: 10461
diff changeset
  1261
10547
wenzelm
parents: 10514
diff changeset
  1262
* CTT: theory Main now available, containing everything (that is, Bool
wenzelm
parents: 10514
diff changeset
  1263
and Arith);
wenzelm
parents: 10514
diff changeset
  1264
10474
paulson
parents: 10461
diff changeset
  1265
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1266
*** General ***
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1267
10547
wenzelm
parents: 10514
diff changeset
  1268
* Pure: the Simplifier has been implemented properly as a derived rule
wenzelm
parents: 10514
diff changeset
  1269
outside of the actual kernel (at last!); the overall performance
wenzelm
parents: 10514
diff changeset
  1270
penalty in practical applications is about 50%, while reliability of
wenzelm
parents: 10514
diff changeset
  1271
the Isabelle inference kernel has been greatly improved;
wenzelm
parents: 10514
diff changeset
  1272
11112
wenzelm
parents: 11097
diff changeset
  1273
* print modes "brackets" and "no_brackets" control output of nested =>
wenzelm
parents: 11097
diff changeset
  1274
(types) and ==> (props); the default behaviour is "brackets";
wenzelm
parents: 11097
diff changeset
  1275
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1276
* Provers: fast_tac (and friends) now handle actual object-logic rules
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1277
as assumptions as well;
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1278
11124
5b97a468b46d isatool install handles KDE version 1 or 2;
wenzelm
parents: 11112
diff changeset
  1279
* system: support Poly/ML 4.0;
5b97a468b46d isatool install handles KDE version 1 or 2;
wenzelm
parents: 11112
diff changeset
  1280
5b97a468b46d isatool install handles KDE version 1 or 2;
wenzelm
parents: 11112
diff changeset
  1281
* system: isatool install handles KDE version 1 or 2;
5b97a468b46d isatool install handles KDE version 1 or 2;
wenzelm
parents: 11112
diff changeset
  1282
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
  1283
10245
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
  1284
10103
4e446f8cef3e Isabelle99-1 (October 2000);
wenzelm
parents: 10080
diff changeset
  1285
New in Isabelle99-1 (October 2000)
4e446f8cef3e Isabelle99-1 (October 2000);
wenzelm
parents: 10080
diff changeset
  1286
----------------------------------
8015
wenzelm
parents: 8014
diff changeset
  1287
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1288
*** Overview of INCOMPATIBILITIES ***
8014
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
  1289
8848
wenzelm
parents: 8832
diff changeset
  1290
* HOL: simplification of natural numbers is much changed; to partly
wenzelm
parents: 8832
diff changeset
  1291
recover the old behaviour (e.g. to prevent n+n rewriting to #2*n)
wenzelm
parents: 8832
diff changeset
  1292
issue the following ML commands:
wenzelm
parents: 8832
diff changeset
  1293
wenzelm
parents: 8832
diff changeset
  1294
  Delsimprocs Nat_Numeral_Simprocs.cancel_numerals;
wenzelm
parents: 8832
diff changeset
  1295
  Delsimprocs [Nat_Numeral_Simprocs.combine_numerals];
8788
518a5450ab6d simprocs
paulson
parents: 8736
diff changeset
  1296
10129
a62b275ac0f7 improved t.weak_case_cong text;
wenzelm
parents: 10103
diff changeset
  1297
* HOL: simplification no longer dives into case-expressions; this is
a62b275ac0f7 improved t.weak_case_cong text;
wenzelm
parents: 10103
diff changeset
  1298
controlled by "t.weak_case_cong" for each datatype t;
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1299
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1300
* HOL: nat_less_induct renamed to less_induct;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1301
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1302
* HOL: systematic renaming of the SOME (Eps) rules, may use isatool
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1303
fixsome to patch .thy and .ML sources automatically;
8967
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
  1304
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1305
  select_equality  -> some_equality
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1306
  select_eq_Ex     -> some_eq_ex
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1307
  selectI2EX       -> someI2_ex
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1308
  selectI2         -> someI2
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1309
  selectI          -> someI
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1310
  select1_equality -> some1_equality
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1311
  Eps_sym_eq       -> some_sym_eq_trivial
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1312
  Eps_eq           -> some_eq_trivial
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1313
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1314
* HOL: exhaust_tac on datatypes superceded by new generic case_tac;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1315
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1316
* HOL: removed obsolete theorem binding expand_if (refer to split_if
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1317
instead);
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1318
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1319
* HOL: the recursion equations generated by 'recdef' are now called
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1320
f.simps instead of f.rules;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1321
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1322
* HOL: qed_spec_mp now also handles bounded ALL as well;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1323
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1324
* HOL: 0 is now overloaded, so the type constraint ":: nat" may
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1325
sometimes be needed;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1326
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1327
* HOL: the constant for "f``x" is now "image" rather than "op ``";
8014
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
  1328
10065
ddb3a014f721 renaming the inverse image operator in HOL
paulson
parents: 10003
diff changeset
  1329
* 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
  1330
9330
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
  1331
* 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
  1332
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
  1333
now "<*lex*>" instead of "**";
8705
a3da5538d924 *** empty log message ***
nipkow
parents: 8673
diff changeset
  1334
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1335
* 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
  1336
of main HOL, but was unused); better use HOL's datatype package;
9971
e0164f01d55a renamed the select rules
paulson
parents: 9941
diff changeset
  1337
10137
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
  1338
* HOL: removed "symbols" syntax for constant "override" of theory Map;
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
  1339
the old syntax may be recovered as follows:
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
  1340
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
  1341
  syntax (symbols)
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
  1342
    override  :: "('a ~=> 'b) => ('a ~=> 'b) => ('a ~=> 'b)"
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
  1343
      (infixl "\\<oplus>" 100)
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
  1344
8848
wenzelm
parents: 8832
diff changeset
  1345
* HOL/Real: "rabs" replaced by overloaded "abs" function;
wenzelm
parents: 8832
diff changeset
  1346
8887
c0c583ce0b0b * HOL/ML: even fewer consts are declared as global (see theories Ord,
wenzelm
parents: 8848
diff changeset
  1347
* 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
  1348
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
  1349
internally;
c0c583ce0b0b * HOL/ML: even fewer consts are declared as global (see theories Ord,
wenzelm
parents: 8848
diff changeset
  1350
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1351
* HOL and ZF: syntax for quotienting wrt an equivalence relation
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1352
changed from A/r to A//r;
9908
7c7ff65b6846 HOL: qed_spec_mp now also removes bounded ALL;
wenzelm
parents: 9871
diff changeset
  1353
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1354
* ZF: new treatment of arithmetic (nat & int) may break some old
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1355
proofs;
8921
7c04c98132c4 * Pure: changed syntax of local blocks from {{ }} to { };
wenzelm
parents: 8887
diff changeset
  1356
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1357
* Isar: renamed some attributes (RS -> THEN, simplify -> simplified,
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1358
rulify -> rule_format, elimify -> elim_format, ...);
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
  1359
9941
fe05af7ec816 renamed atts: rulify to rule_format, elimify to elim_format;
wenzelm
parents: 9937
diff changeset
  1360
* Isar/Provers: intro/elim/dest attributes changed; renamed
fe05af7ec816 renamed atts: rulify to rule_format, elimify to elim_format;
wenzelm
parents: 9937
diff changeset
  1361
intro/intro!/intro!! flags to intro!/intro/intro? (in most cases, one
9937
431c96ac997e replaced "delrule" by "rule del";
wenzelm
parents: 9908
diff changeset
  1362
should have to change intro!! to intro? only); replaced "delrule" by
431c96ac997e replaced "delrule" by "rule del";
wenzelm
parents: 9908
diff changeset
  1363
"rule del";
9437
93e91040c286 * Isar/Provers: intro/elim/dest attributes: changed
wenzelm
parents: 9402
diff changeset
  1364
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1365
* Isar/HOL: renamed "intrs" to "intros" in inductive definitions;
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1366
9437
93e91040c286 * Isar/Provers: intro/elim/dest attributes: changed
wenzelm
parents: 9402
diff changeset
  1367
* 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
  1368
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1369
* LaTeX document preparation: several changes of isabelle.sty (see
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1370
lib/texinputs);
8729
094dbd0fad0c * improved name spaces: ambiguous output is qualified; support for
wenzelm
parents: 8705
diff changeset
  1371
8014
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
  1372
8487
5f3b0e02ec15 Isar: splitter support; improved diagnostics;
wenzelm
parents: 8440
diff changeset
  1373
*** Document preparation ***
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1374
9198
0ab3c81e9425 * formal comments (text blocks etc.) in new-style theories may now
wenzelm
parents: 9185
diff changeset
  1375
* formal comments (text blocks etc.) in new-style theories may now
9753
wenzelm
parents: 9746
diff changeset
  1376
contain antiquotations of thm/prop/term/typ/text to be presented
wenzelm
parents: 9746
diff changeset
  1377
according to latex print mode; concrete syntax is like this:
wenzelm
parents: 9746
diff changeset
  1378
@{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
  1379
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1380
* isatool mkdir provides easy setup of Isabelle session directories,
8518
wenzelm
parents: 8487
diff changeset
  1381
including proper document sources;
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1382
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1383
* generated LaTeX sources are now deleted after successful run
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1384
(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
  1385
of isatool usedir;
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1386
8566
30261b1917b5 usedir -D: update styles;
wenzelm
parents: 8534
diff changeset
  1387
* 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
  1388
style files, achieving self-contained LaTeX sources and simplifying
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1389
LaTeX debugging;
8566
30261b1917b5 usedir -D: update styles;
wenzelm
parents: 8534
diff changeset
  1390
8518
wenzelm
parents: 8487
diff changeset
  1391
* 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
  1392
9057
af1ca1acf292 * browser info session directories are now self-contained (may be put
wenzelm
parents: 9052
diff changeset
  1393
* 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
  1394
on WWW server seperately); improved graphs of nested sessions; removed
93e91040c286 * Isar/Provers: intro/elim/dest attributes: changed
wenzelm
parents: 9402
diff changeset
  1395
graph for 'all sessions';
9057
af1ca1acf292 * browser info session directories are now self-contained (may be put
wenzelm
parents: 9052
diff changeset
  1396
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1397
* several improvements in isabelle style files; \isabellestyle{it}
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1398
produces fake math mode output; \isamarkupheader is now \section by
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1399
default; see lib/texinputs/isabelle.sty etc.;
9489
aa757b35b129 * blast(_tac) now handles actual object-logic rules as assumptions;
wenzelm
parents: 9457
diff changeset
  1400
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1401
8184
6b7ef9fc39da nat as names;
wenzelm
parents: 8015
diff changeset
  1402
*** Isar ***
6b7ef9fc39da nat as names;
wenzelm
parents: 8015
diff changeset
  1403
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1404
* Isar/Pure: local results and corresponding term bindings are now
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1405
subject to Hindley-Milner polymorphism (similar to ML); this
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1406
accommodates incremental type-inference very nicely;
8283
0a319c5746eb * Pure now provides its own version of intro/elim/dest attributes;
wenzelm
parents: 8271
diff changeset
  1407
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1408
* Isar/Pure: new derived language element 'obtain' supports
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1409
generalized existence reasoning;
8621
8ba0f90f6f35 * Isar/Pure: local results and corresponding term bindings are now
wenzelm
parents: 8603
diff changeset
  1410
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1411
* Isar/Pure: new calculational elements 'moreover' and 'ultimately'
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1412
support accumulation of results, without applying any rules yet;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1413
useful to collect intermediate results without explicit name
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1414
references, and for use with transitivity rules with more than 2
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1415
premises;
8184
6b7ef9fc39da nat as names;
wenzelm
parents: 8015
diff changeset
  1416
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1417
* Isar/Pure: scalable support for case-analysis type proofs: new
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1418
'case' language element refers to local contexts symbolically, as
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1419
produced by certain proof methods; internally, case names are attached
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1420
to theorems as "tags";
8440
d66f0f14b1ca * HOL: exhaust_tac on datatypes superceded by new case_tac;
wenzelm
parents: 8425
diff changeset
  1421
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1422
* Isar/Pure: theory command 'hide' removes declarations from
9330
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
  1423
class/type/const name spaces;
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
  1424
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1425
* 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
  1426
indicate potential overloading;
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
  1427
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1428
* 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
  1429
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1430
* 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
  1431
"{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
  1432
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1433
* Isar/Pure now provides its own version of intro/elim/dest
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1434
attributes; useful for building new logics, but beware of confusion
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1435
with the version in Provers/classical;
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1436
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1437
* 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
  1438
case name 'antecedent';
8440
d66f0f14b1ca * HOL: exhaust_tac on datatypes superceded by new case_tac;
wenzelm
parents: 8425
diff changeset
  1439
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1440
* Isar/Pure: removed obsolete 'transfer' attribute (transfer of thms
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1441
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
  1442
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1443
* Isar/Pure: theory command 'method_setup' provides a simple interface
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1444
for definining proof methods in ML;
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1445
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1446
* 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
  1447
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
  1448
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
  1449
replaced "delrule" by "rule del";
8283
0a319c5746eb * Pure now provides its own version of intro/elim/dest attributes;
wenzelm
parents: 8271
diff changeset
  1450
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1451
* Isar/Provers: new 'hypsubst' method, plain 'subst' method and
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1452
'symmetric' attribute (the latter supercedes [RS sym]);
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1453
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1454
* Isar/Provers: splitter support (via 'split' attribute and 'simp'
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1455
method modifier); 'simp' method: 'only:' modifier removes loopers as
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1456
well (including splits);
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1457
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1458
* Isar/Provers: Simplifier and Classical methods now support all kind
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1459
of modifiers used in the past, including 'cong', 'iff', etc.
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1460
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1461
* Isar/Provers: added 'fastsimp' and 'clarsimp' methods (combination
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1462
of Simplifier and Classical reasoner);
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1463
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1464
* Isar/HOL: new proof method 'cases' and improved version of 'induct'
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1465
now support named cases; major packages (inductive, datatype, primrec,
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1466
recdef) support case names and properly name parameters;
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1467
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1468
* Isar/HOL: new transitivity rules for substitution in inequalities --
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1469
monotonicity conditions are extracted to be proven at end of
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1470
calculations;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1471
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1472
* Isar/HOL: removed 'case_split' thm binding, should use 'cases' proof
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1473
method anyway;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1474
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1475
* Isar/HOL: removed old expand_if = split_if; theorems if_splits =
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1476
split_if split_if_asm; datatype package provides theorems foo.splits =
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1477
foo.split foo.split_asm for each datatype;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1478
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1479
* Isar/HOL: tuned inductive package, rename "intrs" to "intros"
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1480
(potential INCOMPATIBILITY), emulation of mk_cases feature for proof
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1481
scripts: new 'inductive_cases' command and 'ind_cases' method; (Note:
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1482
use "(cases (simplified))" method in proper proof texts);
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1483
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1484
* Isar/HOL: added global 'arith_split' attribute for 'arith' method;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1485
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1486
* Isar: names of theorems etc. may be natural numbers as well;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1487
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1488
* Isar: 'pr' command: optional arguments for goals_limit and
9724
2030c5d63741 * 'pr' command: optional argument for ProofContext.prems_limit;
wenzelm
parents: 9709
diff changeset
  1489
ProofContext.prems_limit; no longer prints theory contexts, but only
2030c5d63741 * 'pr' command: optional argument for ProofContext.prems_limit;
wenzelm
parents: 9709
diff changeset
  1490
proof states;
8487
5f3b0e02ec15 Isar: splitter support; improved diagnostics;
wenzelm
parents: 8440
diff changeset
  1491
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1492
* Isar: diagnostic commands 'pr', 'thm', 'prop', 'term', 'typ' admit
8518
wenzelm
parents: 8487
diff changeset
  1493
additional print modes to be specified; e.g. "pr(latex)" will print
wenzelm
parents: 8487
diff changeset
  1494
proof state according to the Isabelle LaTeX style;
8487
5f3b0e02ec15 Isar: splitter support; improved diagnostics;
wenzelm
parents: 8440
diff changeset
  1495
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1496
* Isar: improved support for emulating tactic scripts, including proof
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1497
methods 'rule_tac' etc., 'cut_tac', 'thin_tac', 'subgoal_tac',
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1498
'rename_tac', 'rotate_tac', 'tactic', and 'case_tac' / 'induct_tac'
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1499
(for HOL datatypes);
8534
fdbabfbc3829 improved support for emulating tactic scripts;
wenzelm
parents: 8518
diff changeset
  1500
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1501
* Isar: simplified (more robust) goal selection of proof methods: 1st
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1502
goal, all goals, or explicit goal specifier (tactic emulation); thus
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1503
'proof method scripts' have to be in depth-first order;
8673
987ea1a559d0 Isar: simplified (more robust) goal selection of proof methods;
wenzelm
parents: 8655
diff changeset
  1504
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1505
* Isar: tuned 'let' syntax: replaced 'as' keyword by 'and';
8729
094dbd0fad0c * improved name spaces: ambiguous output is qualified; support for
wenzelm
parents: 8705
diff changeset
  1506
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1507
* Isar: removed 'help' command, which hasn't been too helpful anyway;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1508
should instead use individual commands for printing items
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1509
(print_commands, print_methods etc.);
9224
0da360494917 * Isar: removed 'help' command, which hasn't been too helpful anyway;
wenzelm
parents: 9198
diff changeset
  1510
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1511
* Isar: added 'nothing' --- the empty list of theorems;
9239
b31c2132176a * added 'nothing' --- the empty list of theorems;
wenzelm
parents: 9229
diff changeset
  1512
8184
6b7ef9fc39da nat as names;
wenzelm
parents: 8015
diff changeset
  1513
8014
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
  1514
*** HOL ***
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
  1515
10080
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
  1516
* HOL/MicroJava: formalization of a fragment of Java, together with a
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
  1517
corresponding virtual machine and a specification of its bytecode
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
  1518
verifier and a lightweight bytecode verifier, including proofs of
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
  1519
type-safety; by Gerwin Klein, Tobias Nipkow, David von Oheimb, and
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
  1520
Cornelia Pusch (see also the homepage of project Bali at
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
  1521
http://isabelle.in.tum.de/Bali/);
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
  1522
8518
wenzelm
parents: 8487
diff changeset
  1523
* HOL/Algebra: new theory of rings and univariate polynomials, by
wenzelm
parents: 8487
diff changeset
  1524
Clemens Ballarin;
8014
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
  1525
10157
6d3987f3aad9 * HOL/Lattice: fundamental concepts of lattice theory and order structures;
wenzelm
parents: 10137
diff changeset
  1526
* HOL/NumberTheory: fundamental Theorem of Arithmetic, Chinese
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1527
Remainder Theorem, Fermat/Euler Theorem, Wilson's Theorem, by Thomas M
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1528
Rasmussen;
8570
63d4f3ea2e70 HOL/ex/Multiquote;
wenzelm
parents: 8566
diff changeset
  1529
10157
6d3987f3aad9 * HOL/Lattice: fundamental concepts of lattice theory and order structures;
wenzelm
parents: 10137
diff changeset
  1530
* HOL/Lattice: fundamental concepts of lattice theory and order
6d3987f3aad9 * HOL/Lattice: fundamental concepts of lattice theory and order structures;
wenzelm
parents: 10137
diff changeset
  1531
structures, including duals, properties of bounds versus algebraic
6d3987f3aad9 * HOL/Lattice: fundamental concepts of lattice theory and order structures;
wenzelm
parents: 10137
diff changeset
  1532
laws, lattice operations versus set-theoretic ones, the Knaster-Tarski
6d3987f3aad9 * HOL/Lattice: fundamental concepts of lattice theory and order structures;
wenzelm
parents: 10137
diff changeset
  1533
Theorem for complete lattices etc.; may also serve as a demonstration
6d3987f3aad9 * HOL/Lattice: fundamental concepts of lattice theory and order structures;
wenzelm
parents: 10137
diff changeset
  1534
for abstract algebraic reasoning using axiomatic type classes, and
6d3987f3aad9 * HOL/Lattice: fundamental concepts of lattice theory and order structures;
wenzelm
parents: 10137
diff changeset
  1535
mathematics-style proof in Isabelle/Isar; by Markus Wenzel;
6d3987f3aad9 * HOL/Lattice: fundamental concepts of lattice theory and order structures;
wenzelm
parents: 10137
diff changeset
  1536
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1537
* HOL/Prolog: a (bare-bones) implementation of Lambda-Prolog, by David
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1538
von Oheimb;
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
  1539
10164
c240747082aa * HOL/IMPP: extension of IMP with local variables and mutually
wenzelm
parents: 10157
diff changeset
  1540
* HOL/IMPP: extension of IMP with local variables and mutually
c240747082aa * HOL/IMPP: extension of IMP with local variables and mutually
wenzelm
parents: 10157
diff changeset
  1541
recursive procedures, by David von Oheimb;
c240747082aa * HOL/IMPP: extension of IMP with local variables and mutually
wenzelm
parents: 10157
diff changeset
  1542
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1543
* HOL/Lambda: converted into new-style theory and document;
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
  1544
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1545
* HOL/ex/Multiquote: example of multiple nested quotations and
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1546
anti-quotations -- basically a generalized version of de-Bruijn
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1547
representation; very useful in avoiding lifting of operations;
8848
wenzelm
parents: 8832
diff changeset
  1548
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1549
* HOL/record: added general record equality rule to simpset; fixed
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1550
select-update simplification procedure to handle extended records as
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1551
well; admit "r" as field name;
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
  1552
8967
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
  1553
* HOL: 0 is now overloaded over the new sort "zero", allowing its use with
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
  1554
other numeric types and also as the identity of groups, rings, etc.;
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
  1555
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
  1556
* HOL: new axclass plus_ac0 for addition with the AC-laws and 0 as identity.
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
  1557
Types nat and int belong to this axclass;
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
  1558
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1559
* HOL: greatly improved simplification involving numerals of type nat, int, real:
8788
518a5450ab6d simprocs
paulson
parents: 8736
diff changeset
  1560
   (i + #8 + j) = Suc k simplifies to  #7 + (i + j) = k
8832
bcceda950cd0 more details
paulson
parents: 8788
diff changeset
  1561
   i*j + k + j*#3*i     simplifies to  #4*(i*j) + k
bcceda950cd0 more details
paulson
parents: 8788
diff changeset
  1562
  two terms #m*u and #n*u are replaced by #(m+n)*u
bcceda950cd0 more details
paulson
parents: 8788
diff changeset
  1563
    (where #m, #n and u can implicitly be 1; this is simproc combine_numerals)
bcceda950cd0 more details
paulson
parents: 8788
diff changeset
  1564
  and the term/formula #m*u+x ~~ #n*u+y simplifies simplifies to #(m-n)+x ~~ y
bcceda950cd0 more details
paulson
parents: 8788
diff changeset
  1565
    or x ~~ #(n-m)+y, where ~~ is one of = < <= or - (simproc cancel_numerals);
8736
0bfd6678a5fa new simprocs for numerals of type "nat"
paulson
parents: 8729
diff changeset
  1566
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1567
* HOL: meson_tac is available (previously in ex/meson.ML); it is a
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1568
powerful prover for predicate logic but knows nothing of clasets; see
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1569
ex/mesontest.ML and ex/mesontest2.ML for example applications;
9835
543d23cd1259 meson_tac
paulson
parents: 9814
diff changeset
  1570
8848
wenzelm
parents: 8832
diff changeset
  1571
* HOL: new version of "case_tac" subsumes both boolean case split and
8440
d66f0f14b1ca * HOL: exhaust_tac on datatypes superceded by new case_tac;
wenzelm
parents: 8425
diff changeset
  1572
"exhaust_tac" on datatypes; INCOMPATIBILITY: exhaust_tac no longer
8518
wenzelm
parents: 8487
diff changeset
  1573
exists, may define val exhaust_tac = case_tac for ad-hoc portability;
8440
d66f0f14b1ca * HOL: exhaust_tac on datatypes superceded by new case_tac;
wenzelm
parents: 8425
diff changeset
  1574
8848
wenzelm
parents: 8832
diff changeset
  1575
* HOL: simplification no longer dives into case-expressions: only the
10129
a62b275ac0f7 improved t.weak_case_cong text;
wenzelm
parents: 10103
diff changeset
  1576
selector expression is simplified, but not the remaining arms; to
a62b275ac0f7 improved t.weak_case_cong text;
wenzelm
parents: 10103
diff changeset
  1577
enable full simplification of case-expressions for datatype t, you may
a62b275ac0f7 improved t.weak_case_cong text;
wenzelm
parents: 10103
diff changeset
  1578
remove t.weak_case_cong from the simpset, either globally (Delcongs
a62b275ac0f7 improved t.weak_case_cong text;
wenzelm
parents: 10103
diff changeset
  1579
[thm"t.weak_case_cong"];) or locally (delcongs [...]).
8603
805910de7be0 *** empty log message ***
nipkow
parents: 8570
diff changeset
  1580
8848
wenzelm
parents: 8832
diff changeset
  1581
* HOL/recdef: the recursion equations generated by 'recdef' for
wenzelm
parents: 8832
diff changeset
  1582
function 'f' are now called f.simps instead of f.rules; if all
wenzelm
parents: 8832
diff changeset
  1583
termination conditions are proved automatically, these simplification
wenzelm
parents: 8832
diff changeset
  1584
rules are added to the simpset, as in primrec; rules may be named
wenzelm
parents: 8832
diff changeset
  1585
individually as well, resulting in a separate list of theorems for
wenzelm
parents: 8832
diff changeset
  1586
each equation;
wenzelm
parents: 8832
diff changeset
  1587
9489
aa757b35b129 * blast(_tac) now handles actual object-logic rules as assumptions;
wenzelm
parents: 9457
diff changeset
  1588
* HOL/While is a new theory that provides a while-combinator. It
aa757b35b129 * blast(_tac) now handles actual object-logic rules as assumptions;
wenzelm
parents: 9457
diff changeset
  1589
permits the definition of tail-recursive functions without the
aa757b35b129 * blast(_tac) now handles actual object-logic rules as assumptions;
wenzelm
parents: 9457
diff changeset
  1590
provision of a termination measure. The latter is necessary once the
aa757b35b129 * blast(_tac) now handles actual object-logic rules as assumptions;
wenzelm
parents: 9457
diff changeset
  1591
invariant proof rule for while is applied.
9457
966974a7a5b3 * HOL/While
nipkow
parents: 9437
diff changeset
  1592
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1593
* HOL: new (overloaded) notation for the set of elements below/above
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1594
some element: {..u}, {..u(}, {l..}, {)l..}. See theory SetInterval.
8925
f4599af94b83 SetInterval
nipkow
parents: 8921
diff changeset
  1595
8848
wenzelm
parents: 8832
diff changeset
  1596
* HOL: theorems impI, allI, ballI bound as "strip";
wenzelm
parents: 8832
diff changeset
  1597
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1598
* HOL: new tactic induct_thm_tac: thm -> string -> int -> tactic
9746
64b803edef39 *** empty log message ***
nipkow
parents: 9741
diff changeset
  1599
induct_tac th "x1 ... xn" expects th to have a conclusion of the form
64b803edef39 *** empty log message ***
nipkow
parents: 9741
diff changeset
  1600
P v1 ... vn and abbreviates res_inst_tac [("v1","x1"),...,("vn","xn")] th;
64b803edef39 *** empty log message ***
nipkow
parents: 9741
diff changeset
  1601
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1602
* HOL/Real: "rabs" replaced by overloaded "abs" function;
9737
7aae235675dc *** empty log message ***
nipkow
parents: 9724
diff changeset
  1603
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1604
* HOL: theory Sexp now in HOL/Induct examples (it used to be part of
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1605
main HOL, but was unused);
8626
nipkow
parents: 8621
diff changeset
  1606
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1607
* HOL: fewer consts declared as global (e.g. have to refer to
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1608
"Lfp.lfp" instead of "lfp" internally; affects ML packages only);
8887
c0c583ce0b0b * HOL/ML: even fewer consts are declared as global (see theories Ord,
wenzelm
parents: 8848
diff changeset
  1609
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1610
* HOL: tuned AST representation of nested pairs, avoiding bogus output
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1611
in case of overlap with user translations (e.g. judgements over
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1612
tuples); (note that the underlying logical represenation is still
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1613
bogus);
9349
d43669fb423d * tuned AST representation of nested pairs, avoiding bogus output in
wenzelm
parents: 9335
diff changeset
  1614
8412
65f9089f6f71 cases_tac
nipkow
parents: 8392
diff changeset
  1615
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
  1616
*** ZF ***
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
  1617
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1618
* ZF: simplification automatically cancels common terms in arithmetic
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1619
expressions over nat and int;
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
  1620
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1621
* ZF: new treatment of nat to minimize type-checking: all operators
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1622
coerce their operands to a natural number using the function natify,
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1623
making the algebraic laws unconditional;
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
  1624
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1625
* ZF: as above, for int: operators coerce their operands to an integer
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1626
using the function intify;
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
  1627
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1628
* ZF: the integer library now contains many of the usual laws for the
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1629
orderings, including $<=, and monotonicity laws for $+ and $*;
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
  1630
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1631
* ZF: new example ZF/ex/NatSum to demonstrate integer arithmetic
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1632
simplification;
9388
0b039a3575eb // change; also moved entry for AddIffs
paulson
parents: 9383
diff changeset
  1633
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1634
* FOL and ZF: AddIffs now available, giving theorems of the form P<->Q
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1635
to the simplifier and classical reasoner simultaneously;
9388
0b039a3575eb // change; also moved entry for AddIffs
paulson
parents: 9383
diff changeset
  1636
0b039a3575eb // change; also moved entry for AddIffs
paulson
parents: 9383
diff changeset
  1637
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1638
*** General ***
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1639
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1640
* Provers: blast_tac now handles actual object-logic rules as
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1641
assumptions; note that auto_tac uses blast_tac internally as well;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1642
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1643
* Provers: new functions rulify/rulify_no_asm: thm -> thm for turning
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1644
outer -->/All/Ball into ==>/!!; qed_spec_mp now uses rulify_no_asm;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1645
9941
fe05af7ec816 renamed atts: rulify to rule_format, elimify to elim_format;
wenzelm
parents: 9937
diff changeset
  1646
* Provers: delrules now handles destruct rules as well (no longer need
fe05af7ec816 renamed atts: rulify to rule_format, elimify to elim_format;
wenzelm
parents: 9937
diff changeset
  1647
explicit make_elim);
fe05af7ec816 renamed atts: rulify to rule_format, elimify to elim_format;
wenzelm
parents: 9937
diff changeset
  1648
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1649
* Provers: Blast_tac now warns of and ignores "weak elimination rules" e.g.
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1650
  [| inj ?f;          ?f ?x = ?f ?y; ?x = ?y ==> ?W |] ==> ?W
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1651
use instead the strong form,
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1652
  [| inj ?f; ~ ?W ==> ?f ?x = ?f ?y; ?x = ?y ==> ?W |] ==> ?W
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1653
in HOL, FOL and ZF the function cla_make_elim will create such rules
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1654
from destruct-rules;
9489
aa757b35b129 * blast(_tac) now handles actual object-logic rules as assumptions;
wenzelm
parents: 9457
diff changeset
  1655
9709
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
  1656
* Provers: Simplifier.easy_setup provides a fast path to basic
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
  1657
Simplifier setup for new object-logics;
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
  1658
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
  1659
* Pure: AST translation rules no longer require constant head on LHS;
9349
d43669fb423d * tuned AST representation of nested pairs, avoiding bogus output in
wenzelm
parents: 9335
diff changeset
  1660
9709
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
  1661
* Pure: improved name spaces: ambiguous output is qualified; support
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
  1662
for hiding of names;
8729
094dbd0fad0c * improved name spaces: ambiguous output is qualified; support for
wenzelm
parents: 8705
diff changeset
  1663
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1664
* system: smart setup of canonical ML_HOME, ISABELLE_INTERFACE, and
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1665
XSYMBOL_HOME; no longer need to do manual configuration in most
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1666
situations;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1667
9709
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
  1668
* system: compression of ML heaps images may now be controlled via -c
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
  1669
option of isabelle and isatool usedir (currently only observed by
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
  1670
Poly/ML);
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1671
9981
01a0c4772c18 system: isatool installfonts may handle X-Symbol fonts as well;
wenzelm
parents: 9971
diff changeset
  1672
* system: isatool installfonts may handle X-Symbol fonts as well (very
01a0c4772c18 system: isatool installfonts may handle X-Symbol fonts as well;
wenzelm
parents: 9971
diff changeset
  1673
useful for remote X11);
01a0c4772c18 system: isatool installfonts may handle X-Symbol fonts as well;
wenzelm
parents: 9971
diff changeset
  1674
9709
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
  1675
* system: provide TAGS file for Isabelle sources;
9052
7db48fe85b05 provide TAGS file for Isabelle sources;
wenzelm
parents: 9028
diff changeset
  1676
9288
06a55195741b infix 'OF' is a version of 'MRS' with more appropriate argument order;
wenzelm
parents: 9239
diff changeset
  1677
* ML: infix 'OF' is a version of 'MRS' with more appropriate argument
06a55195741b infix 'OF' is a version of 'MRS' with more appropriate argument order;
wenzelm
parents: 9239
diff changeset
  1678
order;
06a55195741b infix 'OF' is a version of 'MRS' with more appropriate argument order;
wenzelm
parents: 9239
diff changeset
  1679
8994
803533fbb3ec * ML: renamed flags Syntax.trace_norm_ast to Syntax.trace_ast; global
wenzelm
parents: 8991
diff changeset
  1680
* ML: renamed flags Syntax.trace_norm_ast to Syntax.trace_ast; global
803533fbb3ec * ML: renamed flags Syntax.trace_norm_ast to Syntax.trace_ast; global
wenzelm
parents: 8991
diff changeset
  1681
timing flag supersedes proof_timing and Toplevel.trace;
803533fbb3ec * ML: renamed flags Syntax.trace_norm_ast to Syntax.trace_ast; global
wenzelm
parents: 8991
diff changeset
  1682
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1683
* ML: new combinators |>> and |>>> for incremental transformations
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1684
with secondary results (e.g. certain theory extensions):
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1685
9330
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
  1686
* ML: PureThy.add_defs gets additional argument to indicate potential
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
  1687
overloading (usually false);
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
  1688
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1689
* ML: PureThy.add_thms/add_axioms/add_defs now return theorems as
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1690
results;
8440
d66f0f14b1ca * HOL: exhaust_tac on datatypes superceded by new case_tac;
wenzelm
parents: 8425
diff changeset
  1691
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1692
8015
wenzelm
parents: 8014
diff changeset
  1693
7986
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1694
New in Isabelle99 (October 1999)
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1695
--------------------------------
4649
89ad3eb863a1 changed wrapper mechanism of classical reasoner
oheimb
parents: 4575
diff changeset
  1696
5931
325300576da7 Finally removing "Compl" from HOL
paulson
parents: 5781
diff changeset
  1697
*** Overview of INCOMPATIBILITIES (see below for more details) ***
325300576da7 Finally removing "Compl" from HOL
paulson
parents: 5781
diff changeset
  1698
6922
f5c5b81b3f14 integer division
paulson
parents: 6795
diff changeset
  1699
* HOL: The THEN and ELSE parts of conditional expressions (if P then x else y)
f5c5b81b3f14 integer division
paulson
parents: 6795
diff changeset
  1700
are no longer simplified.  (This allows the simplifier to unfold recursive
f5c5b81b3f14 integer division
paulson
parents: 6795
diff changeset
  1701
functional programs.)  To restore the old behaviour, declare
7215
wenzelm
parents: 7204
diff changeset
  1702
wenzelm
parents: 7204
diff changeset
  1703
    Delcongs [if_weak_cong];
6922
f5c5b81b3f14 integer division
paulson
parents: 6795
diff changeset
  1704
6269
wenzelm
parents: 6259
diff changeset
  1705
* HOL: Removed the obsolete syntax "Compl A"; use -A for set
wenzelm
parents: 6259
diff changeset
  1706
complement;
5931
325300576da7 Finally removing "Compl" from HOL
paulson
parents: 5781
diff changeset
  1707
6269
wenzelm
parents: 6259
diff changeset
  1708
* HOL: the predicate "inj" is now defined by translation to "inj_on";
6174
paulson
parents: 6157
diff changeset
  1709
7847
5a3fa0c4b215 Eliminated mutual_induct_tac.
berghofe
parents: 7805
diff changeset
  1710
* HOL/datatype: mutual_induct_tac no longer exists --
5a3fa0c4b215 Eliminated mutual_induct_tac.
berghofe
parents: 7805
diff changeset
  1711
  use induct_tac "x_1 ... x_n" instead of mutual_induct_tac ["x_1", ..., "x_n"]
5a3fa0c4b215 Eliminated mutual_induct_tac.
berghofe
parents: 7805
diff changeset
  1712
6386
e9e8af97f48f HOL/typedef: fixed type inference for representing set;
wenzelm
parents: 6343
diff changeset
  1713
* HOL/typedef: fixed type inference for representing set; type
e9e8af97f48f HOL/typedef: fixed type inference for representing set;
wenzelm
parents: 6343
diff changeset
  1714
arguments now have to occur explicitly on the rhs as type constraints;
e9e8af97f48f HOL/typedef: fixed type inference for representing set;
wenzelm
parents: 6343
diff changeset
  1715
6269
wenzelm
parents: 6259
diff changeset
  1716
* ZF: The con_defs part of an inductive definition may no longer refer
wenzelm
parents: 6259
diff changeset
  1717
to constants declared in the same theory;
6057
395ea7617554 *** empty log message ***
nipkow
parents: 6028
diff changeset
  1718
6269
wenzelm
parents: 6259
diff changeset
  1719
* HOL, ZF: the function mk_cases, generated by the inductive
wenzelm
parents: 6259
diff changeset
  1720
definition package, has lost an argument.  To simplify its result, it
wenzelm
parents: 6259
diff changeset
  1721
uses the default simpset instead of a supplied list of theorems.
6141
a6922171b396 removal of the (thm list) argument of mk_cases
paulson
parents: 6131
diff changeset
  1722
7215
wenzelm
parents: 7204
diff changeset
  1723
* HOL/List: the constructors of type list are now Nil and Cons;
wenzelm
parents: 7204
diff changeset
  1724
7619
d78b8b103fd9 incompatibility solver
nipkow
parents: 7595
diff changeset
  1725
* Simplifier: the type of the infix ML functions
8729
094dbd0fad0c * improved name spaces: ambiguous output is qualified; support for
wenzelm
parents: 8705
diff changeset
  1726
        setSSolver addSSolver setSolver addSolver
7619
d78b8b103fd9 incompatibility solver
nipkow
parents: 7595
diff changeset
  1727
is now  simpset * solver -> simpset  where `solver' is a new abstract type
d78b8b103fd9 incompatibility solver
nipkow
parents: 7595
diff changeset
  1728
for packaging solvers. A solver is created via
8729
094dbd0fad0c * improved name spaces: ambiguous output is qualified; support for
wenzelm
parents: 8705
diff changeset
  1729
        mk_solver: string -> (thm list -> int -> tactic) -> solver
7619
d78b8b103fd9 incompatibility solver
nipkow
parents: 7595
diff changeset
  1730
where the string argument is only a comment.
6057
395ea7617554 *** empty log message ***
nipkow
parents: 6028
diff changeset
  1731
7647
2ceddd91cd0a proper handling of dangling sort hypotheses (at last!);
wenzelm
parents: 7619
diff changeset
  1732
6069
a99879bd9f13 if-then-else syntax for ZF
paulson
parents: 6064
diff changeset
  1733
*** Proof tools ***
a99879bd9f13 if-then-else syntax for ZF
paulson
parents: 6064
diff changeset
  1734
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1735
* Provers/Arith/fast_lin_arith.ML contains a functor for creating a
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1736
decision procedure for linear arithmetic. Currently it is used for
7593
wenzelm
parents: 7492
diff changeset
  1737
types `nat', `int', and `real' in HOL (see below); it can, should and
wenzelm
parents: 7492
diff changeset
  1738
will be instantiated for other types and logics as well.
6069
a99879bd9f13 if-then-else syntax for ZF
paulson
parents: 6064
diff changeset
  1739
7324
6cb0d0202298 simplifier flex heads.
nipkow
parents: 7320
diff changeset
  1740
* The simplifier now accepts rewrite rules with flexible heads, eg
6cb0d0202298 simplifier flex heads.
nipkow
parents: 7320
diff changeset
  1741
     hom ?f ==> ?f(?x+?y) = ?f ?x + ?f ?y
6cb0d0202298 simplifier flex heads.
nipkow
parents: 7320
diff changeset
  1742
  They are applied like any rule with a non-pattern lhs, i.e. by first-order
6cb0d0202298 simplifier flex heads.
nipkow
parents: 7320
diff changeset
  1743
  matching.
6069
a99879bd9f13 if-then-else syntax for ZF
paulson
parents: 6064
diff changeset
  1744
7593
wenzelm
parents: 7492
diff changeset
  1745
6014
bfd4923b0957 locales
paulson
parents: 5973
diff changeset
  1746
*** General ***
bfd4923b0957 locales
paulson
parents: 5973
diff changeset
  1747
7986
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1748
* New Isabelle/Isar subsystem provides an alternative to traditional
7215
wenzelm
parents: 7204
diff changeset
  1749
tactical theorem proving; together with the ProofGeneral/isar user
wenzelm
parents: 7204
diff changeset
  1750
interface it offers an interactive environment for developing human
wenzelm
parents: 7204
diff changeset
  1751
readable proof documents (Isar == Intelligible semi-automated
7886
8fa551e22e52 the settings environment is now statically scoped;
wenzelm
parents: 7863
diff changeset
  1752
reasoning); for further information see isatool doc isar-ref,
7986
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1753
src/HOL/Isar_examples and http://isabelle.in.tum.de/Isar/
7886
8fa551e22e52 the settings environment is now statically scoped;
wenzelm
parents: 7863
diff changeset
  1754
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1755
* improved and simplified presentation of theories: better HTML markup
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1756
(including colors), graph views in several sizes; isatool usedir now
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1757
provides a proper interface for user theories (via -P option); actual
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1758
document preparation based on (PDF)LaTeX is available as well (for
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1759
new-style theories only); see isatool doc system for more information;
7215
wenzelm
parents: 7204
diff changeset
  1760
7252
d3ed595dd772 replaced 'ProofGeneral' by 'Proof General';
wenzelm
parents: 7238
diff changeset
  1761
* native support for Proof General, both for classic Isabelle and
7986
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1762
Isabelle/Isar;
7215
wenzelm
parents: 7204
diff changeset
  1763
7791
wenzelm
parents: 7780
diff changeset
  1764
* ML function thm_deps visualizes dependencies of theorems and lemmas,
wenzelm
parents: 7780
diff changeset
  1765
using the graph browser tool;
wenzelm
parents: 7780
diff changeset
  1766
6751
0e346c73828c Isabelle manuals now also available as PDF;
wenzelm
parents: 6671
diff changeset
  1767
* Isabelle manuals now also available as PDF;
0e346c73828c Isabelle manuals now also available as PDF;
wenzelm
parents: 6671
diff changeset
  1768
6449
d031cb5ea2fc loadpath replaced;
wenzelm
parents: 6420
diff changeset
  1769
* theory loader rewritten from scratch (may not be fully
d031cb5ea2fc loadpath replaced;
wenzelm
parents: 6420
diff changeset
  1770
bug-compatible); old loadpath variable has been replaced by show_path,
6671
wenzelm
parents: 6563
diff changeset
  1771
add_path, del_path, reset_path functions; new operations such as
7593
wenzelm
parents: 7492
diff changeset
  1772
update_thy, touch_thy, remove_thy, use/update_thy_only (see also
wenzelm
parents: 7492
diff changeset
  1773
isatool doc ref);
6449
d031cb5ea2fc loadpath replaced;
wenzelm
parents: 6420
diff changeset
  1774
7215
wenzelm
parents: 7204
diff changeset
  1775
* improved isatool install: option -k creates KDE application icon,
wenzelm
parents: 7204
diff changeset
  1776
option -p DIR installs standalone binaries;
wenzelm
parents: 7204
diff changeset
  1777
wenzelm
parents: 7204
diff changeset
  1778
* added ML_PLATFORM setting (useful for cross-platform installations);
wenzelm
parents: 7204
diff changeset
  1779
more robust handling of platform specific ML images for SML/NJ;
wenzelm
parents: 7204
diff changeset
  1780
7886
8fa551e22e52 the settings environment is now statically scoped;
wenzelm
parents: 7863
diff changeset
  1781
* the settings environment is now statically scoped, i.e. it is never
7986
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1782
created again in sub-processes invoked from isabelle, isatool, or
7886
8fa551e22e52 the settings environment is now statically scoped;
wenzelm
parents: 7863
diff changeset
  1783
Isabelle;
8fa551e22e52 the settings environment is now statically scoped;
wenzelm
parents: 7863
diff changeset
  1784
7215
wenzelm
parents: 7204
diff changeset
  1785
* path element specification '~~' refers to '$ISABELLE_HOME';
wenzelm
parents: 7204
diff changeset
  1786
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1787
* in locales, the "assumes" and "defines" parts may be omitted if
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1788
empty;
5973
040f6d2af50d removed prs / prs_fn;
wenzelm
parents: 5931
diff changeset
  1789
6269
wenzelm
parents: 6259
diff changeset
  1790
* new print_mode "xsymbols" for extended symbol support (e.g. genuine
wenzelm
parents: 6259
diff changeset
  1791
long arrows);
6259
488bdc1bd11a path element specification '~~' refers to '$ISABELLE_HOME';
wenzelm
parents: 6174
diff changeset
  1792
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1793
* new print_mode "HTML";
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1794
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1795
* new flag show_tags controls display of tags of theorems (which are
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1796
basically just comments that may be attached by some tools);
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1797
6461
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1798
* Isamode 2.6 requires patch to accomodate change of Isabelle font
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1799
mode and goal output format:
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1800
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1801
diff -r Isamode-2.6/elisp/isa-load.el Isamode/elisp/isa-load.el
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1802
244c244
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1803
<       (list (isa-getenv "ISABELLE") "-msymbols" logic-name)
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1804
---
6533
wenzelm
parents: 6482
diff changeset
  1805
>       (list (isa-getenv "ISABELLE") "-misabelle_font" "-msymbols" logic-name)
6461
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1806
diff -r Isabelle-2.6/elisp/isa-proofstate.el Isamode/elisp/isa-proofstate.el
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1807
181c181
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1808
< (defconst proofstate-proofstart-regexp "^Level [0-9]+$"
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1809
---
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1810
> (defconst proofstate-proofstart-regexp "^Level [0-9]+"
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1811
7450
e329ca03fd00 added bind_thms;
wenzelm
parents: 7444
diff changeset
  1812
* function bind_thms stores lists of theorems (cf. bind_thm);
e329ca03fd00 added bind_thms;
wenzelm
parents: 7444
diff changeset
  1813
7593
wenzelm
parents: 7492
diff changeset
  1814
* new shorthand tactics ftac, eatac, datac, fatac;
wenzelm
parents: 7492
diff changeset
  1815
wenzelm
parents: 7492
diff changeset
  1816
* qed (and friends) now accept "" as result name; in that case the
7986
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1817
theorem is not stored, but proper checks and presentation of the
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1818
result still apply;
7593
wenzelm
parents: 7492
diff changeset
  1819
7805
0ae9ddc36fe0 theorem database now also indexes constants "Trueprop", "all",
wenzelm
parents: 7791
diff changeset
  1820
* theorem database now also indexes constants "Trueprop", "all",
0ae9ddc36fe0 theorem database now also indexes constants "Trueprop", "all",
wenzelm
parents: 7791
diff changeset
  1821
"==>", "=="; thus thms_containing, findI etc. may retrieve more rules;
0ae9ddc36fe0 theorem database now also indexes constants "Trueprop", "all",
wenzelm
parents: 7791
diff changeset
  1822
6028
1bfd52528bde *** empty log message ***
oheimb
parents: 6014
diff changeset
  1823
6057
395ea7617554 *** empty log message ***
nipkow
parents: 6028
diff changeset
  1824
*** HOL ***
395ea7617554 *** empty log message ***
nipkow
parents: 6028
diff changeset
  1825
7215
wenzelm
parents: 7204
diff changeset
  1826
** HOL arithmetic **
wenzelm
parents: 7204
diff changeset
  1827
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1828
* There are now decision procedures for linear arithmetic over nat and
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1829
int:
6131
2d9e609abcdb More Arith.
nipkow
parents: 6070
diff changeset
  1830
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1831
1. arith_tac copes with arbitrary formulae involving `=', `<', `<=',
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1832
`+', `-', `Suc', `min', `max' and numerical constants; other subterms
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1833
are treated as atomic; subformulae not involving type `nat' or `int'
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1834
are ignored; quantified subformulae are ignored unless they are
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1835
positive universal or negative existential. The tactic has to be
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1836
invoked by hand and can be a little bit slow. In particular, the
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1837
running time is exponential in the number of occurrences of `min' and
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1838
`max', and `-' on `nat'.
6131
2d9e609abcdb More Arith.
nipkow
parents: 6070
diff changeset
  1839
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1840
2. fast_arith_tac is a cut-down version of arith_tac: it only takes
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1841
(negated) (in)equalities among the premises and the conclusion into
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1842
account (i.e. no compound formulae) and does not know about `min' and
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1843
`max', and `-' on `nat'. It is fast and is used automatically by the
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1844
simplifier.
6131
2d9e609abcdb More Arith.
nipkow
parents: 6070
diff changeset
  1845
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1846
NB: At the moment, these decision procedures do not cope with mixed
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1847
nat/int formulae where the two parts interact, such as `m < n ==>
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1848
int(m) < int(n)'.
6028
1bfd52528bde *** empty log message ***
oheimb
parents: 6014
diff changeset
  1849
7215
wenzelm
parents: 7204
diff changeset
  1850
* HOL/Numeral provides a generic theory of numerals (encoded
7313
300487ddfba9 real numerals;
wenzelm
parents: 7300
diff changeset
  1851
efficiently as bit strings); setup for types nat/int/real is in place;
7215
wenzelm
parents: 7204
diff changeset
  1852
INCOMPATIBILITY: since numeral syntax is now polymorphic, rather than
wenzelm
parents: 7204
diff changeset
  1853
int, existing theories and proof scripts may require a few additional
wenzelm
parents: 7204
diff changeset
  1854
type constraints;
wenzelm
parents: 7204
diff changeset
  1855
wenzelm
parents: 7204
diff changeset
  1856
* integer division and remainder can now be performed on constant
wenzelm
parents: 7204
diff changeset
  1857
arguments;
7157
paulson
parents: 7125
diff changeset
  1858
7215
wenzelm
parents: 7204
diff changeset
  1859
* many properties of integer multiplication, division and remainder
wenzelm
parents: 7204
diff changeset
  1860
are now available;
6922
f5c5b81b3f14 integer division
paulson
parents: 6795
diff changeset
  1861
7287
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1862
* An interface to the Stanford Validity Checker (SVC) is available through the
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1863
tactic svc_tac.  Propositional tautologies and theorems of linear arithmetic
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1864
are proved automatically.  SVC must be installed separately, and its results
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1865
must be TAKEN ON TRUST (Isabelle does not check the proofs, but tags any
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1866
invocation of the underlying oracle).  For SVC see
7444
ee17ad649c26 new SVC url
paulson
parents: 7420
diff changeset
  1867
  http://verify.stanford.edu/SVC
6922
f5c5b81b3f14 integer division
paulson
parents: 6795
diff changeset
  1868
7125
df7cf6e85501 HOL-Real target now builds an actual image;
wenzelm
parents: 7113
diff changeset
  1869
* IsaMakefile: the HOL-Real target now builds an actual image;
df7cf6e85501 HOL-Real target now builds an actual image;
wenzelm
parents: 7113
diff changeset
  1870
7215
wenzelm
parents: 7204
diff changeset
  1871
wenzelm
parents: 7204
diff changeset
  1872
** HOL misc **
wenzelm
parents: 7204
diff changeset
  1873
7595
5f5d575ddac3 * HOL/Real/HahnBanach: the Hahn-Banach theorem for real vector spaces
wenzelm
parents: 7593
diff changeset
  1874
* HOL/Real/HahnBanach: the Hahn-Banach theorem for real vector spaces
5f5d575ddac3 * HOL/Real/HahnBanach: the Hahn-Banach theorem for real vector spaces
wenzelm
parents: 7593
diff changeset
  1875
(in Isabelle/Isar) -- by Gertrud Bauer;
5f5d575ddac3 * HOL/Real/HahnBanach: the Hahn-Banach theorem for real vector spaces
wenzelm
parents: 7593
diff changeset
  1876
7691
b7e8277fa088 added BVC;
wenzelm
parents: 7647
diff changeset
  1877
* HOL/BCV: generic model of bytecode verification, i.e. data-flow
b7e8277fa088 added BVC;
wenzelm
parents: 7647
diff changeset
  1878
analysis for assembly languages with subtypes;
b7e8277fa088 added BVC;
wenzelm
parents: 7647
diff changeset
  1879
6278
37b76155a49e Symbol.output subject to print mode;
wenzelm
parents: 6269
diff changeset
  1880
* HOL/TLA (Lamport's Temporal Logic of Actions): major reorganization
37b76155a49e Symbol.output subject to print mode;
wenzelm
parents: 6269
diff changeset
  1881
-- avoids syntactic ambiguities and treats state, transition, and
37b76155a49e Symbol.output subject to print mode;
wenzelm
parents: 6269
diff changeset
  1882
temporal levels more uniformly; introduces INCOMPATIBILITIES due to
37b76155a49e Symbol.output subject to print mode;
wenzelm
parents: 6269
diff changeset
  1883
changed syntax and (many) tactics;
37b76155a49e Symbol.output subject to print mode;
wenzelm
parents: 6269
diff changeset
  1884
7791
wenzelm
parents: 7780
diff changeset
  1885
* HOL/inductive: Now also handles more general introduction rules such
wenzelm
parents: 7780
diff changeset
  1886
  as "ALL y. (y, x) : r --> y : acc r ==> x : acc r"; monotonicity
wenzelm
parents: 7780
diff changeset
  1887
  theorems are now maintained within the theory (maintained via the
wenzelm
parents: 7780
diff changeset
  1888
  "mono" attribute);
7780
099742c562aa Documented changes to HOL/inductive and function thm_deps.
berghofe
parents: 7691
diff changeset
  1889
7238
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1890
* HOL/datatype: Now also handles arbitrarily branching datatypes
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1891
  (using function types) such as
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1892
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1893
  datatype 'a tree = Atom 'a | Branch "nat => 'a tree"
7047
d103b875ef1d Datatype package now handles arbitrarily branching datatypes.
berghofe
parents: 6925
diff changeset
  1894
7326
a1555491a966 record_simproc;
wenzelm
parents: 7324
diff changeset
  1895
* HOL/record: record_simproc (part of the default simpset) takes care
a1555491a966 record_simproc;
wenzelm
parents: 7324
diff changeset
  1896
of selectors applied to updated records; record_split_tac is no longer
7327
wenzelm
parents: 7326
diff changeset
  1897
part of the default claset; update_defs may now be removed from the
wenzelm
parents: 7326
diff changeset
  1898
simpset in many cases; COMPATIBILITY: old behavior achieved by
7326
a1555491a966 record_simproc;
wenzelm
parents: 7324
diff changeset
  1899
a1555491a966 record_simproc;
wenzelm
parents: 7324
diff changeset
  1900
  claset_ref () := claset() addSWrapper record_split_wrapper;
a1555491a966 record_simproc;
wenzelm
parents: 7324
diff changeset
  1901
  Delsimprocs [record_simproc]
a1555491a966 record_simproc;
wenzelm
parents: 7324
diff changeset
  1902
6386
e9e8af97f48f HOL/typedef: fixed type inference for representing set;
wenzelm
parents: 6343
diff changeset
  1903
* HOL/typedef: fixed type inference for representing set; type
e9e8af97f48f HOL/typedef: fixed type inference for representing set;
wenzelm
parents: 6343
diff changeset
  1904
arguments now have to occur explicitly on the rhs as type constraints;
e9e8af97f48f HOL/typedef: fixed type inference for representing set;
wenzelm
parents: 6343
diff changeset
  1905
7287
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1906
* HOL/recdef (TFL): 'congs' syntax now expects comma separated list of theorem
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1907
names rather than an ML expression;
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1908
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1909
* HOL/defer_recdef (TFL): like recdef but the well-founded relation can be
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1910
supplied later.  Program schemes can be defined, such as
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1911
    "While B C s = (if B s then While B C (C s) else s)"
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1912
where the well-founded relation can be chosen after B and C have been given.
6563
wenzelm
parents: 6533
diff changeset
  1913
7215
wenzelm
parents: 7204
diff changeset
  1914
* HOL/List: the constructors of type list are now Nil and Cons;
wenzelm
parents: 7204
diff changeset
  1915
INCOMPATIBILITY: while [] and infix # syntax is still there, of
wenzelm
parents: 7204
diff changeset
  1916
course, ML tools referring to List.list.op # etc. have to be adapted;
wenzelm
parents: 7204
diff changeset
  1917
7238
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1918
* HOL_quantifiers flag superseded by "HOL" print mode, which is
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1919
disabled by default; run isabelle with option -m HOL to get back to
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1920
the original Gordon/HOL-style output;
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1921
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1922
* HOL/Ord.thy: new bounded quantifier syntax (input only): ALL x<y. P,
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1923
ALL x<=y. P, EX x<y. P, EX x<=y. P;
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1924
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1925
* HOL basic syntax simplified (more orthogonal): all variants of
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1926
All/Ex now support plain / symbolic / HOL notation; plain syntax for
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1927
Eps operator is provided as well: "SOME x. P[x]";
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1928
7320
e89fd7d0a624 Moved sum_case to theory HOL/Datatype.
berghofe
parents: 7313
diff changeset
  1929
* HOL/Sum.thy: sum_case has been moved to HOL/Datatype;
7261
a141985d660b sum_case renamed to basic_sum_case;
wenzelm
parents: 7252
diff changeset
  1930
7280
wenzelm
parents: 7261
diff changeset
  1931
* HOL/Univ.thy: infix syntax <*>, <+>, <**>, <+> eliminated and made
wenzelm
parents: 7261
diff changeset
  1932
thus available for user theories;
wenzelm
parents: 7261
diff changeset
  1933
7300
8439bf404c28 * HOLCF/IOA/Sequents: renamed 'Cons' to 'Consq' to avoid clash with HOL/List;
wenzelm
parents: 7287
diff changeset
  1934
* HOLCF/IOA/Sequents: renamed 'Cons' to 'Consq' to avoid clash with
8439bf404c28 * HOLCF/IOA/Sequents: renamed 'Cons' to 'Consq' to avoid clash with HOL/List;
wenzelm
parents: 7287
diff changeset
  1935
HOL/List; hardly an INCOMPATIBILITY since '>>' syntax is used all the
8439bf404c28 * HOLCF/IOA/Sequents: renamed 'Cons' to 'Consq' to avoid clash with HOL/List;
wenzelm
parents: 7287
diff changeset
  1936
time;
8439bf404c28 * HOLCF/IOA/Sequents: renamed 'Cons' to 'Consq' to avoid clash with HOL/List;
wenzelm
parents: 7287
diff changeset
  1937
7986
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1938
* HOL: new tactic smp_tac: int -> int -> tactic, which applies spec
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1939
several times and then mp;
7492
44b333fb5b80 *** empty log message ***
oheimb
parents: 7450
diff changeset
  1940
7215
wenzelm
parents: 7204
diff changeset
  1941
7113
paulson
parents: 7047
diff changeset
  1942
*** LK ***
paulson
parents: 7047
diff changeset
  1943
7215
wenzelm
parents: 7204
diff changeset
  1944
* the notation <<...>> is now available as a notation for sequences of
wenzelm
parents: 7204
diff changeset
  1945
formulas;
7113
paulson
parents: 7047
diff changeset
  1946
paulson
parents: 7047
diff changeset
  1947
* the simplifier is now installed
paulson
parents: 7047
diff changeset
  1948
8729
094dbd0fad0c * improved name spaces: ambiguous output is qualified; support for
wenzelm
parents: 8705
diff changeset
  1949
* the axiom system has been generalized (thanks to Soren Heilmann)
7113
paulson
parents: 7047
diff changeset
  1950
paulson
parents: 7047
diff changeset
  1951
* the classical reasoner now has a default rule database
paulson
parents: 7047
diff changeset
  1952
paulson
parents: 7047
diff changeset
  1953
6064
0786b5afd8ee primrec, induct_tac
paulson
parents: 6063
diff changeset
  1954
*** ZF ***
0786b5afd8ee primrec, induct_tac
paulson
parents: 6063
diff changeset
  1955
0786b5afd8ee primrec, induct_tac
paulson
parents: 6063
diff changeset
  1956
* new primrec section allows primitive recursive functions to be given
6269
wenzelm
parents: 6259
diff changeset
  1957
directly (as in HOL) over datatypes and the natural numbers;
6064
0786b5afd8ee primrec, induct_tac
paulson
parents: 6063
diff changeset
  1958
6269
wenzelm
parents: 6259
diff changeset
  1959
* new tactics induct_tac and exhaust_tac for induction (or case
wenzelm
parents: 6259
diff changeset
  1960
analysis) over datatypes and the natural numbers;
6064
0786b5afd8ee primrec, induct_tac
paulson
parents: 6063
diff changeset
  1961
0786b5afd8ee primrec, induct_tac
paulson
parents: 6063
diff changeset
  1962
* the datatype declaration of type T now defines the recursor T_rec;
0786b5afd8ee primrec, induct_tac
paulson
parents: 6063
diff changeset
  1963
6141
a6922171b396 removal of the (thm list) argument of mk_cases
paulson
parents: 6131
diff changeset
  1964
* simplification automatically does freeness reasoning for datatype
6269
wenzelm
parents: 6259
diff changeset
  1965
constructors;
6141
a6922171b396 removal of the (thm list) argument of mk_cases
paulson
parents: 6131
diff changeset
  1966
6269
wenzelm
parents: 6259
diff changeset
  1967
* automatic type-inference, with AddTCs command to insert new
wenzelm
parents: 6259
diff changeset
  1968
type-checking rules;
6155
e387d188d0ca ZF typechecking
paulson
parents: 6141
diff changeset
  1969
6269
wenzelm
parents: 6259
diff changeset
  1970
* datatype introduction rules are now added as Safe Introduction rules
wenzelm
parents: 6259
diff changeset
  1971
to the claset;
6155
e387d188d0ca ZF typechecking
paulson
parents: 6141
diff changeset
  1972
6269
wenzelm
parents: 6259
diff changeset
  1973
* the syntax "if P then x else y" is now available in addition to
wenzelm
parents: 6259
diff changeset
  1974
if(P,x,y);
wenzelm
parents: 6259
diff changeset
  1975
6069
a99879bd9f13 if-then-else syntax for ZF
paulson
parents: 6064
diff changeset
  1976
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1977
*** Internal programming interfaces ***
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1978
7919
35c18affc1d8 tuned simplifier trace output; new flag debug_simp
wenzelm
parents: 7886
diff changeset
  1979
* tuned simplifier trace output; new flag debug_simp;
35c18affc1d8 tuned simplifier trace output; new flag debug_simp
wenzelm
parents: 7886
diff changeset
  1980
7420
cba45c114f3b structures Vartab / Termtab (instances of TableFun);
wenzelm
parents: 7327
diff changeset
  1981
* structures Vartab / Termtab (instances of TableFun) offer efficient
cba45c114f3b structures Vartab / Termtab (instances of TableFun);
wenzelm
parents: 7327
diff changeset
  1982
tables indexed by indexname_ord / term_ord (compatible with aconv);
cba45c114f3b structures Vartab / Termtab (instances of TableFun);
wenzelm
parents: 7327
diff changeset
  1983
6386
e9e8af97f48f HOL/typedef: fixed type inference for representing set;
wenzelm
parents: 6343
diff changeset
  1984
* AxClass.axclass_tac lost the theory argument;
e9e8af97f48f HOL/typedef: fixed type inference for representing set;
wenzelm
parents: 6343
diff changeset
  1985
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1986
* tuned current_goals_markers semantics: begin / end goal avoids
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1987
printing empty lines;
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1988
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1989
* removed prs and prs_fn hook, which was broken because it did not
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1990
include \n in its semantics, forcing writeln to add one
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1991
uncoditionally; replaced prs_fn by writeln_fn; consider std_output:
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1992
string -> unit if you really want to output text without newline;
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1993
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1994
* Symbol.output subject to print mode; INCOMPATIBILITY: defaults to
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1995
plain output, interface builders may have to enable 'isabelle_font'
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1996
mode to get Isabelle font glyphs as before;
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1997
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1998
* refined token_translation interface; INCOMPATIBILITY: output length
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1999
now of type real instead of int;
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  2000
7196
c8d1002060e8 theory loader actions;
wenzelm
parents: 7157
diff changeset
  2001
* theory loader actions may be traced via new ThyInfo.add_hook
c8d1002060e8 theory loader actions;
wenzelm
parents: 7157
diff changeset
  2002
interface (see src/Pure/Thy/thy_info.ML); example application: keep
c8d1002060e8 theory loader actions;
wenzelm
parents: 7157
diff changeset
  2003
your own database of information attached to *whole* theories -- as
c8d1002060e8 theory loader actions;
wenzelm
parents: 7157
diff changeset
  2004
opposed to intra-theory data slots offered via TheoryDataFun;
c8d1002060e8 theory loader actions;
wenzelm
parents: 7157
diff changeset
  2005
7647
2ceddd91cd0a proper handling of dangling sort hypotheses (at last!);
wenzelm
parents: 7619
diff changeset
  2006
* proper handling of dangling sort hypotheses (at last!);
2ceddd91cd0a proper handling of dangling sort hypotheses (at last!);
wenzelm
parents: 7619
diff changeset
  2007
Thm.strip_shyps and Drule.strip_shyps_warning take care of removing
2ceddd91cd0a proper handling of dangling sort hypotheses (at last!);
wenzelm
parents: 7619
diff changeset
  2008
extra sort hypotheses that can be witnessed from the type signature;
7986
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  2009
the force_strip_shyps flag is gone, any remaining shyps are simply
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  2010
left in the theorem (with a warning issued by strip_shyps_warning);
7647
2ceddd91cd0a proper handling of dangling sort hypotheses (at last!);
wenzelm
parents: 7619
diff changeset
  2011
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  2012
6064
0786b5afd8ee primrec, induct_tac
paulson
parents: 6063
diff changeset
  2013
5781
d37380544c39 tuned current_goals_markers;
wenzelm
parents: 5731
diff changeset
  2014
New in Isabelle98-1 (October 1998)
d37380544c39 tuned current_goals_markers;
wenzelm
parents: 5731
diff changeset
  2015
----------------------------------
d37380544c39 tuned current_goals_markers;
wenzelm
parents: 5731
diff changeset
  2016
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2017
*** Overview of INCOMPATIBILITIES (see below for more details) ***
4842
0afcae75b34a *** empty log message ***
wenzelm
parents: 4838
diff changeset
  2018
5726
wenzelm
parents: 5722
diff changeset
  2019
* several changes of automated proof tools;
5373
wenzelm
parents: 5363
diff changeset
  2020
5726
wenzelm
parents: 5722
diff changeset
  2021
* HOL: major changes to the inductive and datatype packages, including
wenzelm
parents: 5722
diff changeset
  2022
some minor incompatibilities of theory syntax;
5214
75c6392d1274 Adapted to new datatype package.
berghofe
parents: 5207
diff changeset
  2023
5726
wenzelm
parents: 5722
diff changeset
  2024
* HOL: renamed r^-1 to 'converse' from 'inverse'; 'inj_onto' is now
5217
wenzelm
parents: 5214
diff changeset
  2025
called `inj_on';
5160
1ff6679144b9 ZF: Main, Update
paulson
parents: 5145
diff changeset
  2026
5275
de5d5e5eb692 *** empty log message ***
nipkow
parents: 5267
diff changeset
  2027
* HOL: removed duplicate thms in Arith:
de5d5e5eb692 *** empty log message ***
nipkow
parents: 5267
diff changeset
  2028
  less_imp_add_less  should be replaced by  trans_less_add1
de5d5e5eb692 *** empty log message ***
nipkow
parents: 5267
diff changeset
  2029
  le_imp_add_le      should be replaced by  trans_le_add1
5160
1ff6679144b9 ZF: Main, Update
paulson
parents: 5145
diff changeset
  2030
5726
wenzelm
parents: 5722
diff changeset
  2031
* HOL: unary minus is now overloaded (new type constraints may be
wenzelm
parents: 5722
diff changeset
  2032
required);
5490
85855f65d0c6 From Compl(A) to -A
paulson
parents: 5475
diff changeset
  2033
5726
wenzelm
parents: 5722
diff changeset
  2034
* HOL and ZF: unary minus for integers is now #- instead of #~.  In
wenzelm
parents: 5722
diff changeset
  2035
ZF, expressions such as n#-1 must be changed to n#- 1, since #-1 is
wenzelm
parents: 5722
diff changeset
  2036
now taken as an integer constant.
5541
f8fb27db4bcd unary minus
paulson
parents: 5526
diff changeset
  2037
5726
wenzelm
parents: 5722
diff changeset
  2038
* Pure: ML function 'theory_of' renamed to 'theory';
5397
034ed25535b9 * Pure: ML function 'theory_of' replaced by 'theory';
wenzelm
parents: 5373
diff changeset
  2039
5363
0cf15843b82f isatool install;
wenzelm
parents: 5332
diff changeset
  2040
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2041
*** Proof tools ***
4880
312115d20c45 *** empty log message ***
nipkow
parents: 4879
diff changeset
  2042
5657
1a6c9c6a3f8e 2. The simplifier now knows a little bit about nat-arithmetic.
nipkow
parents: 5651
diff changeset
  2043
* Simplifier:
1a6c9c6a3f8e 2. The simplifier now knows a little bit about nat-arithmetic.
nipkow
parents: 5651
diff changeset
  2044
  1. Asm_full_simp_tac is now more aggressive.
1a6c9c6a3f8e 2. The simplifier now knows a little bit about nat-arithmetic.
nipkow
parents: 5651
diff changeset
  2045
     1. It will sometimes reorient premises if that increases their power to
1a6c9c6a3f8e 2. The simplifier now knows a little bit about nat-arithmetic.
nipkow
parents: 5651
diff changeset
  2046
        simplify.
1a6c9c6a3f8e 2. The simplifier now knows a little bit about nat-arithmetic.
nipkow
parents: 5651
diff changeset
  2047
     2. It does no longer proceed strictly from left to right but may also
1a6c9c6a3f8e 2. The simplifier now knows a little bit about nat-arithmetic.
nipkow
parents: 5651
diff changeset
  2048
        rotate premises to achieve further simplification.
1a6c9c6a3f8e 2. The simplifier now knows a little bit about nat-arithmetic.
nipkow
parents: 5651
diff changeset
  2049
     For compatibility reasons there is now Asm_lr_simp_tac which is like the
1a6c9c6a3f8e 2. The simplifier now knows a little bit about nat-arithmetic.
nipkow
parents: 5651
diff changeset
  2050
     old Asm_full_simp_tac in that it does not rotate premises.
1a6c9c6a3f8e 2. The simplifier now knows a little bit about nat-arithmetic.
nipkow
parents: 5651
diff changeset
  2051
  2. The simplifier now knows a little bit about nat-arithmetic.
4880
312115d20c45 *** empty log message ***
nipkow
parents: 4879
diff changeset
  2052
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2053
* Classical reasoner: wrapper mechanism for the classical reasoner now
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2054
allows for selected deletion of wrappers, by introduction of names for
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2055
wrapper functionals.  This implies that addbefore, addSbefore,
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2056
addaltern, and addSaltern now take a pair (name, tactic) as argument,
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2057
and that adding two tactics with the same name overwrites the first
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2058
one (emitting a warning).
4824
df8fc4626a9e *** empty log message ***
oheimb
parents: 4806
diff changeset
  2059
  type wrapper = (int -> tactic) -> (int -> tactic)
4649
89ad3eb863a1 changed wrapper mechanism of classical reasoner
oheimb
parents: 4575
diff changeset
  2060
  setWrapper, setSWrapper, compWrapper and compSWrapper are replaced by
4824
df8fc4626a9e *** empty log message ***
oheimb
parents: 4806
diff changeset
  2061
  addWrapper, addSWrapper: claset * (string * wrapper) -> claset
df8fc4626a9e *** empty log message ***
oheimb
parents: 4806
diff changeset
  2062
  delWrapper, delSWrapper: claset *  string            -> claset
4649
89ad3eb863a1 changed wrapper mechanism of classical reasoner
oheimb
parents: 4575
diff changeset
  2063
  getWrapper is renamed to appWrappers, getSWrapper to appSWrappers;
89ad3eb863a1 changed wrapper mechanism of classical reasoner
oheimb
parents: 4575
diff changeset
  2064
5705
56f2030c46c6 tuned (all proofs are INSTABLE by David's definition of instability);
wenzelm
parents: 5671
diff changeset
  2065
* Classical reasoner: addbefore/addSbefore now have APPEND/ORELSE
5726
wenzelm
parents: 5722
diff changeset
  2066
semantics; addbefore now affects only the unsafe part of step_tac
wenzelm
parents: 5722
diff changeset
  2067
etc.; this affects addss/auto_tac/force_tac, so EXISTING PROOFS MAY
wenzelm
parents: 5722
diff changeset
  2068
FAIL, but proofs should be fixable easily, e.g. by replacing Auto_tac
wenzelm
parents: 5722
diff changeset
  2069
by Force_tac;
5524
38f2a518a811 *** empty log message ***
oheimb
parents: 5490
diff changeset
  2070
5726
wenzelm
parents: 5722
diff changeset
  2071
* Classical reasoner: setwrapper to setWrapper and compwrapper to
wenzelm
parents: 5722
diff changeset
  2072
compWrapper; added safe wrapper (and access functions for it);
5524
38f2a518a811 *** empty log message ***
oheimb
parents: 5490
diff changeset
  2073
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2074
* HOL/split_all_tac is now much faster and fails if there is nothing
5726
wenzelm
parents: 5722
diff changeset
  2075
to split.  Some EXISTING PROOFS MAY REQUIRE ADAPTION because the order
wenzelm
parents: 5722
diff changeset
  2076
and the names of the automatically generated variables have changed.
wenzelm
parents: 5722
diff changeset
  2077
split_all_tac has moved within claset() from unsafe wrappers to safe
wenzelm
parents: 5722
diff changeset
  2078
wrappers, which means that !!-bound variables are split much more
wenzelm
parents: 5722
diff changeset
  2079
aggressively, and safe_tac and clarify_tac now split such variables.
wenzelm
parents: 5722
diff changeset
  2080
If this splitting is not appropriate, use delSWrapper "split_all_tac".
wenzelm
parents: 5722
diff changeset
  2081
Note: the same holds for record_split_tac, which does the job of
wenzelm
parents: 5722
diff changeset
  2082
split_all_tac for record fields.
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2083
5726
wenzelm
parents: 5722
diff changeset
  2084
* HOL/Simplifier: Rewrite rules for case distinctions can now be added
wenzelm
parents: 5722
diff changeset
  2085
permanently to the default simpset using Addsplits just like
wenzelm
parents: 5722
diff changeset
  2086
Addsimps. They can be removed via Delsplits just like
wenzelm
parents: 5722
diff changeset
  2087
Delsimps. Lower-case versions are also available.
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2088
5726
wenzelm
parents: 5722
diff changeset
  2089
* HOL/Simplifier: The rule split_if is now part of the default
wenzelm
parents: 5722
diff changeset
  2090
simpset. This means that the simplifier will eliminate all occurrences
wenzelm
parents: 5722
diff changeset
  2091
of if-then-else in the conclusion of a goal. To prevent this, you can
wenzelm
parents: 5722
diff changeset
  2092
either remove split_if completely from the default simpset by
wenzelm
parents: 5722
diff changeset
  2093
`Delsplits [split_if]' or remove it in a specific call of the
wenzelm
parents: 5722
diff changeset
  2094
simplifier using `... delsplits [split_if]'.  You can also add/delete
wenzelm
parents: 5722
diff changeset
  2095
other case splitting rules to/from the default simpset: every datatype
wenzelm
parents: 5722
diff changeset
  2096
generates suitable rules `split_t_case' and `split_t_case_asm' (where
wenzelm
parents: 5722
diff changeset
  2097
t is the name of the datatype).
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2098
5726
wenzelm
parents: 5722
diff changeset
  2099
* Classical reasoner / Simplifier combination: new force_tac (and
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2100
derivatives Force_tac, force) combines rewriting and classical
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2101
reasoning (and whatever other tools) similarly to auto_tac, but is
5726
wenzelm
parents: 5722
diff changeset
  2102
aimed to solve the given subgoal completely.
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2103
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2104
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2105
*** General ***
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2106
5217
wenzelm
parents: 5214
diff changeset
  2107
* new top-level commands `Goal' and `Goalw' that improve upon `goal'
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2108
and `goalw': the theory is no longer needed as an explicit argument -
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2109
the current theory context is used; assumptions are no longer returned
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2110
at the ML-level unless one of them starts with ==> or !!; it is
5217
wenzelm
parents: 5214
diff changeset
  2111
recommended to convert to these new commands using isatool fixgoal
wenzelm
parents: 5214
diff changeset
  2112
(backup your sources first!);
4842
0afcae75b34a *** empty log message ***
wenzelm
parents: 4838
diff changeset
  2113
5217
wenzelm
parents: 5214
diff changeset
  2114
* new top-level commands 'thm' and 'thms' for retrieving theorems from
5207
wenzelm
parents: 5160
diff changeset
  2115
the current theory context, and 'theory' to lookup stored theories;
4806
79cc986bc4d7 bug fixes
paulson
parents: 4801
diff changeset
  2116
5722
c669e2161b08 locales
paulson
parents: 5710
diff changeset
  2117
* new theory section 'locale' for declaring constants, assumptions and
c669e2161b08 locales
paulson
parents: 5710
diff changeset
  2118
definitions that have local scope;
c669e2161b08 locales
paulson
parents: 5710
diff changeset
  2119
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2120
* new theory section 'nonterminals' for purely syntactic types;
4858
4b15e9e1b3a5 new theory section 'nonterminals';
wenzelm
parents: 4842
diff changeset
  2121
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2122
* new theory section 'setup' for generic ML setup functions
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2123
(e.g. package initialization);
4869
f3d30c02c1db new theory section 'setup';
wenzelm
parents: 4858
diff changeset
  2124
5131
dd4ac220b8b4 the distribution now includes Isabelle icons: see
wenzelm
parents: 5128
diff changeset
  2125
* the distribution now includes Isabelle icons: see
dd4ac220b8b4 the distribution now includes Isabelle icons: see
wenzelm
parents: 5128
diff changeset
  2126
lib/logo/isabelle-{small,tiny}.xpm;
dd4ac220b8b4 the distribution now includes Isabelle icons: see
wenzelm
parents: 5128
diff changeset
  2127
5363
0cf15843b82f isatool install;
wenzelm
parents: 5332
diff changeset
  2128
* isatool install - install binaries with absolute references to
0cf15843b82f isatool install;
wenzelm
parents: 5332
diff changeset
  2129
ISABELLE_HOME/bin;
0cf15843b82f isatool install;
wenzelm
parents: 5332
diff changeset
  2130
5572
53c6ea1e6d94 isatool logo;
wenzelm
parents: 5541
diff changeset
  2131
* isatool logo -- create instances of the Isabelle logo (as EPS);
53c6ea1e6d94 isatool logo;
wenzelm
parents: 5541
diff changeset
  2132
5407
b450fea6d70c * print mode 'emacs' reserved for Isamode;
wenzelm
parents: 5397
diff changeset
  2133
* print mode 'emacs' reserved for Isamode;
b450fea6d70c * print mode 'emacs' reserved for Isamode;
wenzelm
parents: 5397
diff changeset
  2134
5726
wenzelm
parents: 5722
diff changeset
  2135
* support multiple print (ast) translations per constant name;
wenzelm
parents: 5722
diff changeset
  2136
6925
8d4d45ec6a3d theorems involving oracles are now printed with a suffixed [!];
wenzelm
parents: 6922
diff changeset
  2137
* theorems involving oracles are now printed with a suffixed [!];
8d4d45ec6a3d theorems involving oracles are now printed with a suffixed [!];
wenzelm
parents: 6922
diff changeset
  2138
4711
75a9ef36b1fe removed pred;
wenzelm
parents: 4683
diff changeset
  2139
4661
paulson
parents: 4655
diff changeset
  2140
*** HOL ***
paulson
parents: 4655
diff changeset
  2141
5710
wenzelm
parents: 5709
diff changeset
  2142
* there is now a tutorial on Isabelle/HOL (do 'isatool doc tutorial');
5709
35b07f8e67b6 Tutorial
nipkow
parents: 5705
diff changeset
  2143
5217
wenzelm
parents: 5214
diff changeset
  2144
* HOL/inductive package reorganized and improved: now supports mutual
5267
41a01176b9de disjointness
paulson
parents: 5251
diff changeset
  2145
definitions such as
5217
wenzelm
parents: 5214
diff changeset
  2146
wenzelm
parents: 5214
diff changeset
  2147
  inductive EVEN ODD
wenzelm
parents: 5214
diff changeset
  2148
    intrs
wenzelm
parents: 5214
diff changeset
  2149
      null "0 : EVEN"
wenzelm
parents: 5214
diff changeset
  2150
      oddI "n : EVEN ==> Suc n : ODD"
wenzelm
parents: 5214
diff changeset
  2151
      evenI "n : ODD ==> Suc n : EVEN"
wenzelm
parents: 5214
diff changeset
  2152
wenzelm
parents: 5214
diff changeset
  2153
new theorem list "elims" contains an elimination rule for each of the
wenzelm
parents: 5214
diff changeset
  2154
recursive sets; inductive definitions now handle disjunctive premises
wenzelm
parents: 5214
diff changeset
  2155
correctly (also ZF);
5214
75c6392d1274 Adapted to new datatype package.
berghofe
parents: 5207
diff changeset
  2156
5217
wenzelm
parents: 5214
diff changeset
  2157
INCOMPATIBILITIES: requires Inductive as an ancestor; component
wenzelm
parents: 5214
diff changeset
  2158
"mutual_induct" no longer exists - the induction rule is always
wenzelm
parents: 5214
diff changeset
  2159
contained in "induct";
wenzelm
parents: 5214
diff changeset
  2160
wenzelm
parents: 5214
diff changeset
  2161
wenzelm
parents: 5214
diff changeset
  2162
* HOL/datatype package re-implemented and greatly improved: now
5267
41a01176b9de disjointness
paulson
parents: 5251
diff changeset
  2163
supports mutually recursive datatypes such as
5217
wenzelm
parents: 5214
diff changeset
  2164
wenzelm
parents: 5214
diff changeset
  2165
  datatype
wenzelm
parents: 5214
diff changeset
  2166
    'a aexp = IF_THEN_ELSE ('a bexp) ('a aexp) ('a aexp)
wenzelm
parents: 5214
diff changeset
  2167
            | SUM ('a aexp) ('a aexp)
wenzelm
parents: 5214
diff changeset
  2168
            | DIFF ('a aexp) ('a aexp)
wenzelm
parents: 5214
diff changeset
  2169
            | NUM 'a
wenzelm
parents: 5214
diff changeset
  2170
  and
wenzelm
parents: 5214
diff changeset
  2171
    'a bexp = LESS ('a aexp) ('a aexp)
wenzelm
parents: 5214
diff changeset
  2172
            | AND ('a bexp) ('a bexp)
wenzelm
parents: 5214
diff changeset
  2173
            | OR ('a bexp) ('a bexp)
wenzelm
parents: 5214
diff changeset
  2174
5267
41a01176b9de disjointness
paulson
parents: 5251
diff changeset
  2175
as well as indirectly recursive datatypes such as
5214
75c6392d1274 Adapted to new datatype package.
berghofe
parents: 5207
diff changeset
  2176
5217
wenzelm
parents: 5214
diff changeset
  2177
  datatype
wenzelm
parents: 5214
diff changeset
  2178
    ('a, 'b) term = Var 'a
wenzelm
parents: 5214
diff changeset
  2179
                  | App 'b ((('a, 'b) term) list)
5214
75c6392d1274 Adapted to new datatype package.
berghofe
parents: 5207
diff changeset
  2180
5217
wenzelm
parents: 5214
diff changeset
  2181
The new tactic  mutual_induct_tac [<var_1>, ..., <var_n>] i  performs
wenzelm
parents: 5214
diff changeset
  2182
induction on mutually / indirectly recursive datatypes.
wenzelm
parents: 5214
diff changeset
  2183
wenzelm
parents: 5214
diff changeset
  2184
Primrec equations are now stored in theory and can be accessed via
wenzelm
parents: 5214
diff changeset
  2185
<function_name>.simps.
wenzelm
parents: 5214
diff changeset
  2186
wenzelm
parents: 5214
diff changeset
  2187
INCOMPATIBILITIES:
5214
75c6392d1274 Adapted to new datatype package.
berghofe
parents: 5207
diff changeset
  2188
5217
wenzelm
parents: 5214
diff changeset
  2189
  - Theories using datatypes must now have theory Datatype as an
wenzelm
parents: 5214
diff changeset
  2190
    ancestor.
wenzelm
parents: 5214
diff changeset
  2191
  - The specific <typename>.induct_tac no longer exists - use the
wenzelm
parents: 5214
diff changeset
  2192
    generic induct_tac instead.
5226
89934cd022a9 Replaced nat.exhaustion by nat.exhaust
berghofe
parents: 5217
diff changeset
  2193
  - natE has been renamed to nat.exhaust - use exhaust_tac
5217
wenzelm
parents: 5214
diff changeset
  2194
    instead of res_inst_tac ... natE. Note that the variable
5226
89934cd022a9 Replaced nat.exhaustion by nat.exhaust
berghofe
parents: 5217
diff changeset
  2195
    names in nat.exhaust differ from the names in natE, this
5217
wenzelm
parents: 5214
diff changeset
  2196
    may cause some "fragile" proofs to fail.
wenzelm
parents: 5214
diff changeset
  2197
  - The theorems split_<typename>_case and split_<typename>_case_asm
wenzelm
parents: 5214
diff changeset
  2198
    have been renamed to <typename>.split and <typename>.split_asm.
wenzelm
parents: 5214
diff changeset
  2199
  - Since default sorts of type variables are now handled correctly,
wenzelm
parents: 5214
diff changeset
  2200
    some datatype definitions may have to be annotated with explicit
wenzelm
parents: 5214
diff changeset
  2201
    sort constraints.
wenzelm
parents: 5214
diff changeset
  2202
  - Primrec definitions no longer require function name and type
wenzelm
parents: 5214
diff changeset
  2203
    of recursive argument.
5214
75c6392d1274 Adapted to new datatype package.
berghofe
parents: 5207
diff changeset
  2204
5217
wenzelm
parents: 5214
diff changeset
  2205
Consider using isatool fixdatatype to adapt your theories and proof
wenzelm
parents: 5214
diff changeset
  2206
scripts to the new package (backup your sources first!).
wenzelm
parents: 5214
diff changeset
  2207
wenzelm
parents: 5214
diff changeset
  2208
5726
wenzelm
parents: 5722
diff changeset
  2209
* HOL/record package: considerably improved implementation; now
wenzelm
parents: 5722
diff changeset
  2210
includes concrete syntax for record types, terms, updates; theorems
wenzelm
parents: 5722
diff changeset
  2211
for surjective pairing and splitting !!-bound record variables; proof
wenzelm
parents: 5722
diff changeset
  2212
support is as follows:
wenzelm
parents: 5722
diff changeset
  2213
wenzelm
parents: 5722
diff changeset
  2214
  1) standard conversions (selectors or updates applied to record
wenzelm
parents: 5722
diff changeset
  2215
constructor terms) are part of the standard simpset;
wenzelm
parents: 5722
diff changeset
  2216
wenzelm
parents: 5722
diff changeset
  2217
  2) inject equations of the form ((x, y) = (x', y')) == x=x' & y=y' are
wenzelm
parents: 5722
diff changeset
  2218
made part of standard simpset and claset via addIffs;
wenzelm
parents: 5722
diff changeset
  2219
wenzelm
parents: 5722
diff changeset
  2220
  3) a tactic for record field splitting (record_split_tac) is part of
wenzelm
parents: 5722
diff changeset
  2221
the standard claset (addSWrapper);
wenzelm
parents: 5722
diff changeset
  2222
wenzelm
parents: 5722
diff changeset
  2223
To get a better idea about these rules you may retrieve them via
wenzelm
parents: 5722
diff changeset
  2224
something like 'thms "foo.simps"' or 'thms "foo.iffs"', where "foo" is
wenzelm
parents: 5722
diff changeset
  2225
the name of your record type.
wenzelm
parents: 5722
diff changeset
  2226
wenzelm
parents: 5722
diff changeset
  2227
The split tactic 3) conceptually simplifies by the following rule:
wenzelm
parents: 5722
diff changeset
  2228
wenzelm
parents: 5722
diff changeset
  2229
  "(!!x. PROP ?P x) == (!!a b. PROP ?P (a, b))"
wenzelm
parents: 5722
diff changeset
  2230
wenzelm
parents: 5722
diff changeset
  2231
Thus any record variable that is bound by meta-all will automatically
wenzelm
parents: 5722
diff changeset
  2232
blow up into some record constructor term, consequently the
wenzelm
parents: 5722
diff changeset
  2233
simplifications of 1), 2) apply.  Thus force_tac, auto_tac etc. shall
wenzelm
parents: 5722
diff changeset
  2234
solve record problems automatically.
wenzelm
parents: 5722
diff changeset
  2235
5214
75c6392d1274 Adapted to new datatype package.
berghofe
parents: 5207
diff changeset
  2236
5125
463a0e9df5b5 reorganized the main HOL image;
wenzelm
parents: 5109
diff changeset
  2237
* reorganized the main HOL image: HOL/Integ and String loaded by
463a0e9df5b5 reorganized the main HOL image;
wenzelm
parents: 5109
diff changeset
  2238
default; theory Main includes everything;
463a0e9df5b5 reorganized the main HOL image;
wenzelm
parents: 5109
diff changeset
  2239
5650
38bda28c68a2 integer simprocs
paulson
parents: 5572
diff changeset
  2240
* automatic simplification of integer sums and comparisons, using cancellation;
38bda28c68a2 integer simprocs
paulson
parents: 5572
diff changeset
  2241
5526
e7617b57a3e6 *** empty log message ***
oheimb
parents: 5524
diff changeset
  2242
* added option_map_eq_Some and not_Some_eq to the default simpset and claset;
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2243
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2244
* added disj_not1 = "(~P | Q) = (P --> Q)" to the default simpset;
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2245
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2246
* many new identities for unions, intersections, set difference, etc.;
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2247
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2248
* expand_if, expand_split, expand_sum_case and expand_nat_case are now
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2249
called split_if, split_split, split_sum_case and split_nat_case (to go
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2250
with add/delsplits);
5125
463a0e9df5b5 reorganized the main HOL image;
wenzelm
parents: 5109
diff changeset
  2251
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2252
* HOL/Prod introduces simplification procedure unit_eq_proc rewriting
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2253
(?x::unit) = (); this is made part of the default simpset, which COULD
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2254
MAKE EXISTING PROOFS FAIL under rare circumstances (consider
5207
wenzelm
parents: 5160
diff changeset
  2255
'Delsimprocs [unit_eq_proc];' as last resort); also note that
wenzelm
parents: 5160
diff changeset
  2256
unit_abs_eta_conv is added in order to counter the effect of
wenzelm
parents: 5160
diff changeset
  2257
unit_eq_proc on (%u::unit. f u), replacing it by f rather than by
wenzelm
parents: 5160
diff changeset
  2258
%u.f();
5125
463a0e9df5b5 reorganized the main HOL image;
wenzelm
parents: 5109
diff changeset
  2259
5217
wenzelm
parents: 5214
diff changeset
  2260
* HOL/Fun INCOMPATIBILITY: `inj_onto' is now called `inj_on' (which
wenzelm
parents: 5214
diff changeset
  2261
makes more sense);
5109
b3d18eb3ac20 Adapted to new inductive definition package.
berghofe
parents: 5106
diff changeset
  2262
5475
410172655d64 equals0D
paulson
parents: 5428
diff changeset
  2263
* HOL/Set INCOMPATIBILITY: rule `equals0D' is now a well-formed destruct rule;
410172655d64 equals0D
paulson
parents: 5428
diff changeset
  2264
  It and 'sym RS equals0D' are now in the default  claset, giving automatic
410172655d64 equals0D
paulson
parents: 5428
diff changeset
  2265
  disjointness reasoning but breaking a few old proofs.
5267
41a01176b9de disjointness
paulson
parents: 5251
diff changeset
  2266
5217
wenzelm
parents: 5214
diff changeset
  2267
* HOL/Relation INCOMPATIBILITY: renamed the relational operator r^-1
wenzelm
parents: 5214
diff changeset
  2268
to 'converse' from 'inverse' (for compatibility with ZF and some
wenzelm
parents: 5214
diff changeset
  2269
literature);
5085
8e5a7942fdea simplification procedure unit_eq_proc rewrites (?x::unit) = ();
wenzelm
parents: 5077
diff changeset
  2270
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2271
* HOL/recdef can now declare non-recursive functions, with {} supplied as
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2272
the well-founded relation;
4838
196100237656 cleanup for split_all_tac as wrapper in claset()
oheimb
parents: 4835
diff changeset
  2273
5490
85855f65d0c6 From Compl(A) to -A
paulson
parents: 5475
diff changeset
  2274
* HOL/Set INCOMPATIBILITY: the complement of set A is now written -A instead of
85855f65d0c6 From Compl(A) to -A
paulson
parents: 5475
diff changeset
  2275
    Compl A.  The "Compl" syntax remains available as input syntax for this
85855f65d0c6 From Compl(A) to -A
paulson
parents: 5475
diff changeset
  2276
    release ONLY.
85855f65d0c6 From Compl(A) to -A
paulson
parents: 5475
diff changeset
  2277
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2278
* HOL/Update: new theory of function updates:
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2279
    f(a:=b) == %x. if x=a then b else f x
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2280
may also be iterated as in f(a:=b,c:=d,...);
5077
71043526295f * HOL/List: new function list_update written xs[i:=v] that updates the i-th
nipkow
parents: 5075
diff changeset
  2281
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2282
* HOL/Vimage: new theory for inverse image of a function, syntax f-``B;
4899
447d6b2956ba HOL/Update
paulson
parents: 4880
diff changeset
  2283
5282
80c75c862a8f *** empty log message ***
nipkow
parents: 5275
diff changeset
  2284
* HOL/List:
80c75c862a8f *** empty log message ***
nipkow
parents: 5275
diff changeset
  2285
  - new function list_update written xs[i:=v] that updates the i-th
80c75c862a8f *** empty log message ***
nipkow
parents: 5275
diff changeset
  2286
    list position. May also be iterated as in xs[i:=a,j:=b,...].
5428
5a6c4f666a25 Function 'upt'
nipkow
parents: 5407
diff changeset
  2287
  - new function `upt' written [i..j(] which generates the list
5a6c4f666a25 Function 'upt'
nipkow
parents: 5407
diff changeset
  2288
    [i,i+1,...,j-1], i.e. the upper bound is excluded. To include the upper
5a6c4f666a25 Function 'upt'
nipkow
parents: 5407
diff changeset
  2289
    bound write [i..j], which is a shorthand for [i..j+1(].
5282
80c75c862a8f *** empty log message ***
nipkow
parents: 5275
diff changeset
  2290
  - new lexicographic orderings and corresponding wellfoundedness theorems.
4779
paulson
parents: 4766
diff changeset
  2291
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2292
* HOL/Arith:
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2293
  - removed 'pred' (predecessor) function;
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2294
  - generalized some theorems about n-1;
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2295
  - many new laws about "div" and "mod";
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2296
  - new laws about greatest common divisors (see theory ex/Primes);
4766
9658aab68363 *** empty log message ***
oheimb
parents: 4747
diff changeset
  2297
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2298
* HOL/Relation: renamed the relational operator r^-1 "converse"
4842
0afcae75b34a *** empty log message ***
wenzelm
parents: 4838
diff changeset
  2299
instead of "inverse";
4711
75a9ef36b1fe removed pred;
wenzelm
parents: 4683
diff changeset
  2300
5651
ca45d6126c8a *** empty log message ***
nipkow
parents: 5650
diff changeset
  2301
* HOL/Induct/Multiset: a theory of multisets, including the wellfoundedness
ca45d6126c8a *** empty log message ***
nipkow
parents: 5650
diff changeset
  2302
  of the multiset ordering;
ca45d6126c8a *** empty log message ***
nipkow
parents: 5650
diff changeset
  2303
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2304
* directory HOL/Real: a construction of the reals using Dedekind cuts
5651
ca45d6126c8a *** empty log message ***
nipkow
parents: 5650
diff changeset
  2305
  (not included by default);
4835
f90a427d903f *** empty log message ***
nipkow
parents: 4828
diff changeset
  2306
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2307
* directory HOL/UNITY: Chandy and Misra's UNITY formalism;
4711
75a9ef36b1fe removed pred;
wenzelm
parents: 4683
diff changeset
  2308
5651
ca45d6126c8a *** empty log message ***
nipkow
parents: 5650
diff changeset
  2309
* directory HOL/Hoare: a new version of Hoare logic which permits many-sorted
ca45d6126c8a *** empty log message ***
nipkow
parents: 5650
diff changeset
  2310
  programs, i.e. different program variables may have different types.
ca45d6126c8a *** empty log message ***
nipkow
parents: 5650
diff changeset
  2311
5142
c56aa8b59dc0 new stac
paulson
parents: 5140
diff changeset
  2312
* calling (stac rew i) now fails if "rew" has no effect on the goal
c56aa8b59dc0 new stac
paulson
parents: 5140
diff changeset
  2313
  [previously, this check worked only if the rewrite rule was unconditional]
5308
paulson
parents: 5282
diff changeset
  2314
  Now rew can involve either definitions or equalities (either == or =).
5002
7b4c2a153738 * improved the theory data mechanism to support real encapsulation;
wenzelm
parents: 4981
diff changeset
  2315
5363
0cf15843b82f isatool install;
wenzelm
parents: 5332
diff changeset
  2316
4879
58656c6a3551 "let" is no longer restricted to FOL terms and allows any logical terms
paulson
parents: 4869
diff changeset
  2317
*** ZF ***
58656c6a3551 "let" is no longer restricted to FOL terms and allows any logical terms
paulson
parents: 4869
diff changeset
  2318
5332
paulson
parents: 5308
diff changeset
  2319
* theory Main includes everything; INCOMPATIBILITY: theory ZF.thy contains
paulson
parents: 5308
diff changeset
  2320
  only the theorems proved on ZF.ML;
5160
1ff6679144b9 ZF: Main, Update
paulson
parents: 5145
diff changeset
  2321
5475
410172655d64 equals0D
paulson
parents: 5428
diff changeset
  2322
* ZF INCOMPATIBILITY: rule `equals0D' is now a well-formed destruct rule;
410172655d64 equals0D
paulson
parents: 5428
diff changeset
  2323
  It and 'sym RS equals0D' are now in the default  claset, giving automatic
410172655d64 equals0D
paulson
parents: 5428
diff changeset
  2324
  disjointness reasoning but breaking a few old proofs.
5267
41a01176b9de disjointness
paulson
parents: 5251
diff changeset
  2325
5160
1ff6679144b9 ZF: Main, Update
paulson
parents: 5145
diff changeset
  2326
* ZF/Update: new theory of function updates
1ff6679144b9 ZF: Main, Update
paulson
parents: 5145
diff changeset
  2327
    with default rewrite rule  f(x:=y) ` z = if(z=x, y, f`z)
1ff6679144b9 ZF: Main, Update
paulson
parents: 5145
diff changeset
  2328
  may also be iterated as in f(a:=b,c:=d,...);
1ff6679144b9 ZF: Main, Update
paulson
parents: 5145
diff changeset
  2329
4879
58656c6a3551 "let" is no longer restricted to FOL terms and allows any logical terms
paulson
parents: 4869
diff changeset
  2330
* in  let x=t in u(x), neither t nor u(x) has to be an FOL term.
4649
89ad3eb863a1 changed wrapper mechanism of classical reasoner
oheimb
parents: 4575
diff changeset
  2331
5142
c56aa8b59dc0 new stac
paulson
parents: 5140
diff changeset
  2332
* calling (stac rew i) now fails if "rew" has no effect on the goal
c56aa8b59dc0 new stac
paulson
parents: 5140
diff changeset
  2333
  [previously, this check worked only if the rewrite rule was unconditional]
5308
paulson
parents: 5282
diff changeset
  2334
  Now rew can involve either definitions or equalities (either == or =).
5142
c56aa8b59dc0 new stac
paulson
parents: 5140
diff changeset
  2335
5160
1ff6679144b9 ZF: Main, Update
paulson
parents: 5145
diff changeset
  2336
* case_tac provided for compatibility with HOL
1ff6679144b9 ZF: Main, Update
paulson
parents: 5145
diff changeset
  2337
    (like the old excluded_middle_tac, but with subgoals swapped)
1ff6679144b9 ZF: Main, Update
paulson
parents: 5145
diff changeset
  2338
4842
0afcae75b34a *** empty log message ***
wenzelm
parents: 4838
diff changeset
  2339
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2340
*** Internal programming interfaces ***
5002
7b4c2a153738 * improved the theory data mechanism to support real encapsulation;
wenzelm
parents: 4981
diff changeset
  2341
5251
wenzelm
parents: 5226
diff changeset
  2342
* Pure: several new basic modules made available for general use, see
wenzelm
parents: 5226
diff changeset
  2343
also src/Pure/README;
5207
wenzelm
parents: 5160
diff changeset
  2344
5008
6f56d9650ee9 new type-safe user interface for theory data;
wenzelm
parents: 5002
diff changeset
  2345
* improved the theory data mechanism to support encapsulation (data
6f56d9650ee9 new type-safe user interface for theory data;
wenzelm
parents: 5002
diff changeset
  2346
kind name replaced by private Object.kind, acting as authorization
5373
wenzelm
parents: 5363
diff changeset
  2347
key); new type-safe user interface via functor TheoryDataFun; generic
wenzelm
parents: 5363
diff changeset
  2348
print_data function becomes basically useless;
5002
7b4c2a153738 * improved the theory data mechanism to support real encapsulation;
wenzelm
parents: 4981
diff changeset
  2349
5251
wenzelm
parents: 5226
diff changeset
  2350
* removed global_names compatibility flag -- all theory declarations
wenzelm
parents: 5226
diff changeset
  2351
are qualified by default;
wenzelm
parents: 5226
diff changeset
  2352
5085
8e5a7942fdea simplification procedure unit_eq_proc rewrites (?x::unit) = ();
wenzelm
parents: 5077
diff changeset
  2353
* module Pure/Syntax now offers quote / antiquote translation
8e5a7942fdea simplification procedure unit_eq_proc rewrites (?x::unit) = ();
wenzelm
parents: 5077
diff changeset
  2354
functions (useful for Hoare logic etc. with implicit dependencies);
5373
wenzelm
parents: 5363
diff changeset
  2355
see HOL/ex/Antiquote for an example use;
5085
8e5a7942fdea simplification procedure unit_eq_proc rewrites (?x::unit) = ();
wenzelm
parents: 5077
diff changeset
  2356
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2357
* Simplifier now offers conversions (asm_)(full_)rewrite: simpset ->
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2358
cterm -> thm;
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  2359
5207
wenzelm
parents: 5160
diff changeset
  2360
* new tactical CHANGED_GOAL for checking that a tactic modifies a
wenzelm
parents: 5160
diff changeset
  2361
subgoal;
5142
c56aa8b59dc0 new stac
paulson
parents: 5140
diff changeset
  2362
5251
wenzelm
parents: 5226
diff changeset
  2363
* Display.print_goals function moved to Locale.print_goals;
wenzelm
parents: 5226
diff changeset
  2364
5731
f84dc3b811e9 current_goals_markers;
wenzelm
parents: 5726
diff changeset
  2365
* standard print function for goals supports current_goals_markers
f84dc3b811e9 current_goals_markers;
wenzelm
parents: 5726
diff changeset
  2366
variable for marking begin of proof, end of proof, start of goal; the
f84dc3b811e9 current_goals_markers;
wenzelm
parents: 5726
diff changeset
  2367
default is ("", "", ""); setting current_goals_markers := ("<proof>",
f84dc3b811e9 current_goals_markers;
wenzelm
parents: 5726
diff changeset
  2368
"</proof>", "<goal>") causes SGML like tagged proof state printing,
f84dc3b811e9 current_goals_markers;
wenzelm
parents: 5726
diff changeset
  2369
for example;
f84dc3b811e9 current_goals_markers;
wenzelm
parents: 5726
diff changeset
  2370
5002
7b4c2a153738 * improved the theory data mechanism to support real encapsulation;
wenzelm
parents: 4981
diff changeset
  2371
7b4c2a153738 * improved the theory data mechanism to support real encapsulation;
wenzelm
parents: 4981
diff changeset
  2372
4410
wenzelm
parents: 4388
diff changeset
  2373
New in Isabelle98 (January 1998)
wenzelm
parents: 4388
diff changeset
  2374
--------------------------------
wenzelm
parents: 4388
diff changeset
  2375
wenzelm
parents: 4388
diff changeset
  2376
*** Overview of INCOMPATIBILITIES (see below for more details) ***
wenzelm
parents: 4388
diff changeset
  2377
wenzelm
parents: 4388
diff changeset
  2378
* changed lexical syntax of terms / types: dots made part of long
wenzelm
parents: 4388
diff changeset
  2379
identifiers, e.g. "%x.x" no longer possible, should be "%x. x";
wenzelm
parents: 4388
diff changeset
  2380
wenzelm
parents: 4388
diff changeset
  2381
* simpset (and claset) reference variable replaced by functions
wenzelm
parents: 4388
diff changeset
  2382
simpset / simpset_ref;
wenzelm
parents: 4388
diff changeset
  2383
wenzelm
parents: 4388
diff changeset
  2384
* no longer supports theory aliases (via merge) and non-trivial
wenzelm
parents: 4388
diff changeset
  2385
implicit merge of thms' signatures;
wenzelm
parents: 4388
diff changeset
  2386
wenzelm
parents: 4388
diff changeset
  2387
* most internal names of constants changed due to qualified names;
wenzelm
parents: 4388
diff changeset
  2388
wenzelm
parents: 4388
diff changeset
  2389
* changed Pure/Sequence interface (see Pure/seq.ML);
wenzelm
parents: 4388
diff changeset
  2390
3454
40b1287347d7 removed;
wenzelm
parents: 3338
diff changeset
  2391
3715
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2392
*** General Changes ***
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2393
4174
wenzelm
parents: 4154
diff changeset
  2394
* hierachically structured name spaces (for consts, types, axms, thms
3943
b6e0c90f3bf4 tuned qualified names;
wenzelm
parents: 3930
diff changeset
  2395
etc.); new lexical class 'longid' (e.g. Foo.bar.x) may render much of
4108
1610602a2964 isatool fixclasimp;
wenzelm
parents: 4070
diff changeset
  2396
old input syntactically incorrect (e.g. "%x.x"); COMPATIBILITY:
1610602a2964 isatool fixclasimp;
wenzelm
parents: 4070
diff changeset
  2397
isatool fixdots ensures space after dots (e.g. "%x. x"); set
4174
wenzelm
parents: 4154
diff changeset
  2398
long_names for fully qualified output names; NOTE: ML programs
wenzelm
parents: 4154
diff changeset
  2399
(special tactics, packages etc.) referring to internal names may have
wenzelm
parents: 4154
diff changeset
  2400
to be adapted to cope with fully qualified names; in case of severe
wenzelm
parents: 4154
diff changeset
  2401
backward campatibility problems try setting 'global_names' at compile
wenzelm
parents: 4154
diff changeset
  2402
time to have enrything declared within a flat name space; one may also
wenzelm
parents: 4154
diff changeset
  2403
fine tune name declarations in theories via the 'global' and 'local'
wenzelm
parents: 4154
diff changeset
  2404
section;
4108
1610602a2964 isatool fixclasimp;
wenzelm
parents: 4070
diff changeset
  2405
1610602a2964 isatool fixclasimp;
wenzelm
parents: 4070
diff changeset
  2406
* reimplemented the implicit simpset and claset using the new anytype
1610602a2964 isatool fixclasimp;
wenzelm
parents: 4070
diff changeset
  2407
data filed in signatures; references simpset:simpset ref etc. are
1610602a2964 isatool fixclasimp;
wenzelm
parents: 4070
diff changeset
  2408
replaced by functions simpset:unit->simpset and
1610602a2964 isatool fixclasimp;
wenzelm
parents: 4070
diff changeset
  2409
simpset_ref:unit->simpset ref; COMPATIBILITY: use isatool fixclasimp
1610602a2964 isatool fixclasimp;
wenzelm
parents: 4070
diff changeset
  2410
to patch your ML files accordingly;
3856
177c64693954 rearranged and added TLA
paulson
parents: 3851
diff changeset
  2411
3857
16198fde5af5 browser info;
wenzelm
parents: 3856
diff changeset
  2412
* HTML output now includes theory graph data for display with Java
16198fde5af5 browser info;
wenzelm
parents: 3856
diff changeset
  2413
applet or isatool browser; data generated automatically via isatool
3901
wenzelm
parents: 3871
diff changeset
  2414
usedir (see -i option, ISABELLE_USEDIR_OPTIONS);
3857
16198fde5af5 browser info;
wenzelm
parents: 3856
diff changeset
  2415
3856
177c64693954 rearranged and added TLA
paulson
parents: 3851
diff changeset
  2416
* defs may now be conditional; improved rewrite_goals_tac to handle
177c64693954 rearranged and added TLA
paulson
parents: 3851
diff changeset
  2417
conditional equations;
177c64693954 rearranged and added TLA
paulson
parents: 3851
diff changeset
  2418
4174
wenzelm
parents: 4154
diff changeset
  2419
* defs now admits additional type arguments, using TYPE('a) syntax;
wenzelm
parents: 4154
diff changeset
  2420
3901
wenzelm
parents: 3871
diff changeset
  2421
* theory aliases via merge (e.g. M=A+B+C) no longer supported, always
wenzelm
parents: 3871
diff changeset
  2422
creates a new theory node; implicit merge of thms' signatures is
4112
wenzelm
parents: 4108
diff changeset
  2423
restricted to 'trivial' ones; COMPATIBILITY: one may have to use
3901
wenzelm
parents: 3871
diff changeset
  2424
transfer:theory->thm->thm in (rare) cases;
wenzelm
parents: 3871
diff changeset
  2425
3968
ec138de716d9 improved handling of draft signatures / theories; draft thms (and
wenzelm
parents: 3964
diff changeset
  2426
* improved handling of draft signatures / theories; draft thms (and
ec138de716d9 improved handling of draft signatures / theories; draft thms (and
wenzelm
parents: 3964
diff changeset
  2427
ctyps, cterms) are automatically promoted to real ones;
ec138de716d9 improved handling of draft signatures / theories; draft thms (and
wenzelm
parents: 3964
diff changeset
  2428
3901
wenzelm
parents: 3871
diff changeset
  2429
* slightly changed interfaces for oracles: admit many per theory, named
wenzelm
parents: 3871
diff changeset
  2430
(e.g. oracle foo = mlfun), additional name argument for invoke_oracle;
wenzelm
parents: 3871
diff changeset
  2431
wenzelm
parents: 3871
diff changeset
  2432
* print_goals: optional output of const types (set show_consts and
wenzelm
parents: 3871
diff changeset
  2433
show_types);
3851
fe9932a7cd46 print_goals: optional output of const types (set show_consts);
wenzelm
parents: 3846
diff changeset
  2434
4388
wenzelm
parents: 4381
diff changeset
  2435
* improved output of warnings (###) and errors (***);
3697
c5833dfcc2cc Pure: fixed idt/idts vs. pttrn/pttrns syntactic categories;
wenzelm
parents: 3671
diff changeset
  2436
4178
e64ff1c1bc70 subgoal_tac displays a warning if the new subgoal has type variables
paulson
parents: 4174
diff changeset
  2437
* subgoal_tac displays a warning if the new subgoal has type variables;
e64ff1c1bc70 subgoal_tac displays a warning if the new subgoal has type variables
paulson
parents: 4174
diff changeset
  2438
3715
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2439
* removed old README and Makefiles;
3697
c5833dfcc2cc Pure: fixed idt/idts vs. pttrn/pttrns syntactic categories;
wenzelm
parents: 3671
diff changeset
  2440
3856
177c64693954 rearranged and added TLA
paulson
parents: 3851
diff changeset
  2441
* replaced print_goals_ref hook by print_current_goals_fn and result_error_fn;
3670
9fea3562f8c7 replaced print_goals_ref hook by print_current_goals_fn and
wenzelm
parents: 3658
diff changeset
  2442
3715
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2443
* removed obsolete init_pps and init_database;
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2444
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2445
* deleted the obsolete tactical STATE, which was declared by
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2446
    fun STATE tacfun st = tacfun st st;
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2447
4388
wenzelm
parents: 4381
diff changeset
  2448
* cd and use now support path variables, e.g. $ISABELLE_HOME, or ~
wenzelm
parents: 4381
diff changeset
  2449
(which abbreviates $HOME);
4269
a045600f0c98 cd, use etc. now support path variables;
wenzelm
parents: 4207
diff changeset
  2450
a045600f0c98 cd, use etc. now support path variables;
wenzelm
parents: 4207
diff changeset
  2451
* changed Pure/Sequence interface (see Pure/seq.ML); COMPATIBILITY:
a045600f0c98 cd, use etc. now support path variables;
wenzelm
parents: 4207
diff changeset
  2452
use isatool fixseq to adapt your ML programs (this works for fully
a045600f0c98 cd, use etc. now support path variables;
wenzelm
parents: 4207
diff changeset
  2453
qualified references to the Sequence structure only!);
a045600f0c98 cd, use etc. now support path variables;
wenzelm
parents: 4207
diff changeset
  2454
4381
wenzelm
parents: 4373
diff changeset
  2455
* use_thy no longer requires writable current directory; it always
wenzelm
parents: 4373
diff changeset
  2456
reloads .ML *and* .thy file, if either one is out of date;
4269
a045600f0c98 cd, use etc. now support path variables;
wenzelm
parents: 4207
diff changeset
  2457
3715
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2458
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2459
*** Classical Reasoner ***
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2460
3744
wenzelm
parents: 3719
diff changeset
  2461
* Clarify_tac, clarify_tac, clarify_step_tac, Clarify_step_tac: new
wenzelm
parents: 3719
diff changeset
  2462
tactics that use classical reasoning to simplify a subgoal without
wenzelm
parents: 3719
diff changeset
  2463
splitting it into several subgoals;
3715
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2464
3719
6a142dab2a08 Safe_tac; qed_spec_mp in FOL
paulson
parents: 3715
diff changeset
  2465
* Safe_tac: like safe_tac but uses the default claset;
6a142dab2a08 Safe_tac; qed_spec_mp in FOL
paulson
parents: 3715
diff changeset
  2466
3715
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2467
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2468
*** Simplifier ***
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2469
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2470
* added simplification meta rules:
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2471
    (asm_)(full_)simplify: simpset -> thm -> thm;
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2472
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2473
* simplifier.ML no longer part of Pure -- has to be loaded by object
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2474
logics (again);
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2475
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2476
* added prems argument to simplification procedures;
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2477
4325
e72cba5af6c5 addsplits now in FOL, ZF too
paulson
parents: 4269
diff changeset
  2478
* HOL, FOL, ZF: added infix function `addsplits':
e72cba5af6c5 addsplits now in FOL, ZF too
paulson
parents: 4269
diff changeset
  2479
  instead of `<simpset> setloop (split_tac <thms>)'
e72cba5af6c5 addsplits now in FOL, ZF too
paulson
parents: 4269
diff changeset
  2480
  you can simply write `<simpset> addsplits <thms>'
e72cba5af6c5 addsplits now in FOL, ZF too
paulson
parents: 4269
diff changeset
  2481
3715
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2482
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2483
*** Syntax ***
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2484
4174
wenzelm
parents: 4154
diff changeset
  2485
* TYPE('a) syntax for type reflection terms;
wenzelm
parents: 4154
diff changeset
  2486
3985
wenzelm
parents: 3982
diff changeset
  2487
* no longer handles consts with name "" -- declare as 'syntax' instead;
3856
177c64693954 rearranged and added TLA
paulson
parents: 3851
diff changeset
  2488
177c64693954 rearranged and added TLA
paulson
parents: 3851
diff changeset
  2489
* pretty printer: changed order of mixfix annotation preference (again!);
3846
6061fa463784 hierachically structured name spaces;
wenzelm
parents: 3822
diff changeset
  2490
3715
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2491
* Pure: fixed idt/idts vs. pttrn/pttrns syntactic categories;
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2492
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2493
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2494
*** HOL ***
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2495
5726
wenzelm
parents: 5722
diff changeset
  2496
* HOL: there is a new splitter `split_asm_tac' that can be used e.g.
4189
b8c7a6bc6c16 added split_prem_tac
oheimb
parents: 4178
diff changeset
  2497
  with `addloop' of the simplifier to faciliate case splitting in premises.
b8c7a6bc6c16 added split_prem_tac
oheimb
parents: 4178
diff changeset
  2498
4035
6ffbc7b11abd *** empty log message ***
nipkow
parents: 3985
diff changeset
  2499
* HOL/TLA: Stephan Merz's formalization of Lamport's Temporal Logic of Actions;
3985
wenzelm
parents: 3982
diff changeset
  2500
wenzelm
parents: 3982
diff changeset
  2501
* HOL/Auth: new protocol proofs including some for the Internet
4035
6ffbc7b11abd *** empty log message ***
nipkow
parents: 3985
diff changeset
  2502
  protocol TLS;
3985
wenzelm
parents: 3982
diff changeset
  2503
4125
wenzelm
parents: 4123
diff changeset
  2504
* HOL/Map: new theory of `maps' a la VDM;
3982
2a903ba8d39e HOL/Map
nipkow
parents: 3968
diff changeset
  2505
4335
b0acd74da01d nat_cancel simprocs;
wenzelm
parents: 4325
diff changeset
  2506
* HOL/simplifier: simplification procedures nat_cancel_sums for
b0acd74da01d nat_cancel simprocs;
wenzelm
parents: 4325
diff changeset
  2507
cancelling out common nat summands from =, <, <= (in)equalities, or
b0acd74da01d nat_cancel simprocs;
wenzelm
parents: 4325
diff changeset
  2508
differences; simplification procedures nat_cancel_factor for
b0acd74da01d nat_cancel simprocs;
wenzelm
parents: 4325
diff changeset
  2509
cancelling common factor from =, <, <= (in)equalities over natural
4373
2f831a45d571 nat_cancel enabled by default;
wenzelm
parents: 4370
diff changeset
  2510
sums; nat_cancel contains both kinds of procedures, it is installed by
2f831a45d571 nat_cancel enabled by default;
wenzelm
parents: 4370
diff changeset
  2511
default in Arith.thy -- this COULD MAKE EXISTING PROOFS FAIL;
4335
b0acd74da01d nat_cancel simprocs;
wenzelm
parents: 4325
diff changeset
  2512
3580
04c6ae944b5e new simproc
nipkow
parents: 3579
diff changeset
  2513
* HOL/simplifier: terms of the form
4325
e72cba5af6c5 addsplits now in FOL, ZF too
paulson
parents: 4269
diff changeset
  2514
  `? x. P1(x) & ... & Pn(x) & x=t & Q1(x) & ... Qn(x)'  (or t=x)
3580
04c6ae944b5e new simproc
nipkow
parents: 3579
diff changeset
  2515
  are rewritten to
4035
6ffbc7b11abd *** empty log message ***
nipkow
parents: 3985
diff changeset
  2516
  `P1(t) & ... & Pn(t) & Q1(t) & ... Qn(t)',
6ffbc7b11abd *** empty log message ***
nipkow
parents: 3985
diff changeset
  2517
  and those of the form
4325
e72cba5af6c5 addsplits now in FOL, ZF too
paulson
parents: 4269
diff changeset
  2518
  `! x. P1(x) & ... & Pn(x) & x=t & Q1(x) & ... Qn(x) --> R(x)'  (or t=x)
4035
6ffbc7b11abd *** empty log message ***
nipkow
parents: 3985
diff changeset
  2519
  are rewritten to
6ffbc7b11abd *** empty log message ***
nipkow
parents: 3985
diff changeset
  2520
  `P1(t) & ... & Pn(t) & Q1(t) & ... Qn(t) --> R(t)',
6ffbc7b11abd *** empty log message ***
nipkow
parents: 3985
diff changeset
  2521
6ffbc7b11abd *** empty log message ***
nipkow
parents: 3985
diff changeset
  2522
* HOL/datatype
6ffbc7b11abd *** empty log message ***
nipkow
parents: 3985
diff changeset
  2523
  Each datatype `t' now comes with a theorem `split_t_case' of the form
3580
04c6ae944b5e new simproc
nipkow
parents: 3579
diff changeset
  2524
4035
6ffbc7b11abd *** empty log message ***
nipkow
parents: 3985
diff changeset
  2525
  P(t_case f1 ... fn x) =
6ffbc7b11abd *** empty log message ***
nipkow
parents: 3985
diff changeset
  2526
     ( (!y1 ... ym1. x = C1 y1 ... ym1 --> P(f1 y1 ... ym1)) &
6ffbc7b11abd *** empty log message ***
nipkow
parents: 3985
diff changeset
  2527
        ...
4189
b8c7a6bc6c16 added split_prem_tac
oheimb
parents: 4178
diff changeset
  2528
       (!y1 ... ymn. x = Cn y1 ... ymn --> P(f1 y1 ... ymn))
4035
6ffbc7b11abd *** empty log message ***
nipkow
parents: 3985
diff changeset
  2529
     )
6ffbc7b11abd *** empty log message ***
nipkow
parents: 3985
diff changeset
  2530
4930
89271bc4e7ed extended addsplits and delsplits to handle also split rules for assumptions
oheimb
parents: 4915
diff changeset
  2531
  and a theorem `split_t_case_asm' of the form
4189
b8c7a6bc6c16 added split_prem_tac
oheimb
parents: 4178
diff changeset
  2532
b8c7a6bc6c16 added split_prem_tac
oheimb
parents: 4178
diff changeset
  2533
  P(t_case f1 ... fn x) =
b8c7a6bc6c16 added split_prem_tac
oheimb
parents: 4178
diff changeset
  2534
    ~( (? y1 ... ym1. x = C1 y1 ... ym1 & ~P(f1 y1 ... ym1)) |
b8c7a6bc6c16 added split_prem_tac
oheimb
parents: 4178
diff changeset
  2535
        ...
b8c7a6bc6c16 added split_prem_tac
oheimb
parents: 4178
diff changeset
  2536
       (? y1 ... ymn. x = Cn y1 ... ymn & ~P(f1 y1 ... ymn))
b8c7a6bc6c16 added split_prem_tac
oheimb
parents: 4178
diff changeset
  2537
     )
4930
89271bc4e7ed extended addsplits and delsplits to handle also split rules for assumptions
oheimb
parents: 4915
diff changeset
  2538
  which can be added to a simpset via `addsplits'. The existing theorems
89271bc4e7ed extended addsplits and delsplits to handle also split rules for assumptions
oheimb
parents: 4915
diff changeset
  2539
  expand_list_case and expand_option_case have been renamed to
89271bc4e7ed extended addsplits and delsplits to handle also split rules for assumptions
oheimb
parents: 4915
diff changeset
  2540
  split_list_case and split_option_case.
4189
b8c7a6bc6c16 added split_prem_tac
oheimb
parents: 4178
diff changeset
  2541
4361
c77a484e4f95 pred -> -1
nipkow
parents: 4357
diff changeset
  2542
* HOL/Arithmetic:
c77a484e4f95 pred -> -1
nipkow
parents: 4357
diff changeset
  2543
  - `pred n' is automatically converted to `n-1'.
c77a484e4f95 pred -> -1
nipkow
parents: 4357
diff changeset
  2544
    Users are strongly encouraged not to use `pred' any longer,
c77a484e4f95 pred -> -1
nipkow
parents: 4357
diff changeset
  2545
    because it will disappear altogether at some point.
c77a484e4f95 pred -> -1
nipkow
parents: 4357
diff changeset
  2546
  - Users are strongly encouraged to write "0 < n" rather than
c77a484e4f95 pred -> -1
nipkow
parents: 4357
diff changeset
  2547
    "n ~= 0". Theorems and proof tools have been modified towards this
c77a484e4f95 pred -> -1
nipkow
parents: 4357
diff changeset
  2548
    `standard'.
4357
b852e2d2a39a n ~= 0 should become 0 < n
nipkow
parents: 4335
diff changeset
  2549
4502
337c073de95e nth -> !
nipkow
parents: 4410
diff changeset
  2550
* HOL/Lists:
337c073de95e nth -> !
nipkow
parents: 4410
diff changeset
  2551
  the function "set_of_list" has been renamed "set" (and its theorems too);
337c073de95e nth -> !
nipkow
parents: 4410
diff changeset
  2552
  the function "nth" now takes its arguments in the reverse order and
337c073de95e nth -> !
nipkow
parents: 4410
diff changeset
  2553
  has acquired the infix notation "!" as in "xs!n".
3570
d3662f90c453 set_of_list -> set
paulson
parents: 3567
diff changeset
  2554
4154
17a3a2c5a35f UNIV & UNION1
paulson
parents: 4125
diff changeset
  2555
* HOL/Set: UNIV is now a constant and is no longer translated to Compl{};
17a3a2c5a35f UNIV & UNION1
paulson
parents: 4125
diff changeset
  2556
17a3a2c5a35f UNIV & UNION1
paulson
parents: 4125
diff changeset
  2557
* HOL/Set: The operator (UN x.B x) now abbreviates (UN x:UNIV. B x) and its
17a3a2c5a35f UNIV & UNION1
paulson
parents: 4125
diff changeset
  2558
  specialist theorems (like UN1_I) are gone.  Similarly for (INT x.B x);
17a3a2c5a35f UNIV & UNION1
paulson
parents: 4125
diff changeset
  2559
4575
e59cf7d816fe HOL/record;
wenzelm
parents: 4502
diff changeset
  2560
* HOL/record: extensible records with schematic structural subtyping
e59cf7d816fe HOL/record;
wenzelm
parents: 4502
diff changeset
  2561
(single inheritance); EXPERIMENTAL version demonstrating the encoding,
e59cf7d816fe HOL/record;
wenzelm
parents: 4502
diff changeset
  2562
still lacks various theorems and concrete record syntax;
e59cf7d816fe HOL/record;
wenzelm
parents: 4502
diff changeset
  2563
4125
wenzelm
parents: 4123
diff changeset
  2564
3715
6e074b41c735 Clarify_tac; general reorganization
paulson
parents: 3697
diff changeset
  2565
*** HOLCF ***
3535
19bd6c8274c4 defs may now be conditional;
wenzelm
parents: 3511
diff changeset
  2566
4125
wenzelm
parents: 4123
diff changeset
  2567
* removed "axioms" and "generated by" sections;
wenzelm
parents: 4123
diff changeset
  2568
4123
9600dd68d35b *** empty log message ***
oheimb
parents: 4112
diff changeset
  2569
* replaced "ops" section by extended "consts" section, which is capable of
4125
wenzelm
parents: 4123
diff changeset
  2570
  handling the continuous function space "->" directly;
wenzelm
parents: 4123
diff changeset
  2571
wenzelm
parents: 4123
diff changeset
  2572
* domain package:
wenzelm
parents: 4123
diff changeset
  2573
  . proves theorems immediately and stores them in the theory,
wenzelm
parents: 4123
diff changeset
  2574
  . creates hierachical name space,
wenzelm
parents: 4123
diff changeset
  2575
  . now uses normal mixfix annotations (instead of cinfix...),
wenzelm
parents: 4123
diff changeset
  2576
  . minor changes to some names and values (for consistency),
wenzelm
parents: 4123
diff changeset
  2577
  . e.g. cases -> casedist, dists_eq -> dist_eqs, [take_lemma] -> take_lemmas,
wenzelm
parents: 4123
diff changeset
  2578
  . separator between mutual domain defs: changed "," to "and",
wenzelm
parents: 4123
diff changeset
  2579
  . improved handling of sort constraints;  now they have to
wenzelm
parents: 4123
diff changeset
  2580
    appear on the left-hand side of the equations only;
4123
9600dd68d35b *** empty log message ***
oheimb
parents: 4112
diff changeset
  2581
9600dd68d35b *** empty log message ***
oheimb
parents: 4112
diff changeset
  2582
* fixed LAM <x,y,zs>.b syntax;
3567
e2539e1980b4 added simplification meta rules;
wenzelm
parents: 3561
diff changeset
  2583
3744
wenzelm
parents: 3719
diff changeset
  2584
* added extended adm_tac to simplifier in HOLCF -- can now discharge
wenzelm
parents: 3719
diff changeset
  2585
adm (%x. P (t x)), where P is chainfinite and t continuous;
3579
8bd9b4b3b61d *** empty log message ***
wenzelm
parents: 3570
diff changeset
  2586
8bd9b4b3b61d *** empty log message ***
wenzelm
parents: 3570
diff changeset
  2587
3719
6a142dab2a08 Safe_tac; qed_spec_mp in FOL
paulson
parents: 3715
diff changeset
  2588
*** FOL and ZF ***
6a142dab2a08 Safe_tac; qed_spec_mp in FOL
paulson
parents: 3715
diff changeset
  2589
5726
wenzelm
parents: 5722
diff changeset
  2590
* FOL: there is a new splitter `split_asm_tac' that can be used e.g.
4189
b8c7a6bc6c16 added split_prem_tac
oheimb
parents: 4178
diff changeset
  2591
  with `addloop' of the simplifier to faciliate case splitting in premises.
b8c7a6bc6c16 added split_prem_tac
oheimb
parents: 4178
diff changeset
  2592
3744
wenzelm
parents: 3719
diff changeset
  2593
* qed_spec_mp, qed_goal_spec_mp, qed_goalw_spec_mp are available, as
wenzelm
parents: 3719
diff changeset
  2594
in HOL, they strip ALL and --> from proved theorems;
wenzelm
parents: 3719
diff changeset
  2595
3719
6a142dab2a08 Safe_tac; qed_spec_mp in FOL
paulson
parents: 3715
diff changeset
  2596
3579
8bd9b4b3b61d *** empty log message ***
wenzelm
parents: 3570
diff changeset
  2597
3006
wenzelm
parents: 3002
diff changeset
  2598
New in Isabelle94-8 (May 1997)
wenzelm
parents: 3002
diff changeset
  2599
------------------------------
2654
6efa602921d1 *** empty log message ***
wenzelm
parents: 2653
diff changeset
  2600
3002
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2601
*** General Changes ***
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2602
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2603
* new utilities to build / run / maintain Isabelle etc. (in parts
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2604
still somewhat experimental); old Makefiles etc. still functional;
2971
c1e1e8406fb2 *** empty log message ***
wenzelm
parents: 2927
diff changeset
  2605
3205
816a1f9fd620 *** empty log message ***
wenzelm
parents: 3116
diff changeset
  2606
* new 'Isabelle System Manual';
816a1f9fd620 *** empty log message ***
wenzelm
parents: 3116
diff changeset
  2607
2825
a94dba60d5f2 *** empty log message ***
wenzelm
parents: 2773
diff changeset
  2608
* INSTALL text, together with ./configure and ./build scripts;
2773
36fdd908a26c *** empty log message ***
wenzelm
parents: 2756
diff changeset
  2609
3006
wenzelm
parents: 3002
diff changeset
  2610
* reimplemented type inference for greater efficiency, better error
wenzelm
parents: 3002
diff changeset
  2611
messages and clean internal interface;
3002
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2612
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2613
* prlim command for dealing with lots of subgoals (an easier way of
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2614
setting goals_limit);
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2615
3006
wenzelm
parents: 3002
diff changeset
  2616
wenzelm
parents: 3002
diff changeset
  2617
*** Syntax ***
3002
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2618
3116
b890bae4273e *** empty log message ***
wenzelm
parents: 3107
diff changeset
  2619
* supports alternative (named) syntax tables (parser and pretty
b890bae4273e *** empty log message ***
wenzelm
parents: 3107
diff changeset
  2620
printer); internal interface is provided by add_modesyntax(_i);
b890bae4273e *** empty log message ***
wenzelm
parents: 3107
diff changeset
  2621
3002
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2622
* Pure, FOL, ZF, HOL, HOLCF now support symbolic input and output; to
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2623
be used in conjunction with the Isabelle symbol font; uses the
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2624
"symbols" syntax table;
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2625
2705
d6e83a02061d *** empty log message ***
wenzelm
parents: 2654
diff changeset
  2626
* added token_translation interface (may translate name tokens in
2756
643cba384a61 *** empty log message ***
wenzelm
parents: 2747
diff changeset
  2627
arbitrary ways, dependent on their type (free, bound, tfree, ...) and
3116
b890bae4273e *** empty log message ***
wenzelm
parents: 3107
diff changeset
  2628
the current print_mode); IMPORTANT: user print translation functions
b890bae4273e *** empty log message ***
wenzelm
parents: 3107
diff changeset
  2629
are responsible for marking newly introduced bounds
b890bae4273e *** empty log message ***
wenzelm
parents: 3107
diff changeset
  2630
(Syntax.mark_boundT);
2705
d6e83a02061d *** empty log message ***
wenzelm
parents: 2654
diff changeset
  2631
2730
865995b744f5 *** empty log message ***
wenzelm
parents: 2726
diff changeset
  2632
* token translations for modes "xterm" and "xterm_color" that display
3006
wenzelm
parents: 3002
diff changeset
  2633
names in bold, underline etc. or colors (which requires a color
wenzelm
parents: 3002
diff changeset
  2634
version of xterm);
2730
865995b744f5 *** empty log message ***
wenzelm
parents: 2726
diff changeset
  2635
3002
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2636
* infixes may now be declared with names independent of their syntax;
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2637
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2638
* added typed_print_translation (like print_translation, but may
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2639
access type of constant);
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2640
3006
wenzelm
parents: 3002
diff changeset
  2641
3002
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2642
*** Classical Reasoner ***
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2643
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2644
Blast_tac: a new tactic!  It is often more powerful than fast_tac, but has
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2645
some limitations.  Blast_tac...
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2646
  + ignores addss, addbefore, addafter; this restriction is intrinsic
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2647
  + ignores elimination rules that don't have the correct format
5726
wenzelm
parents: 5722
diff changeset
  2648
        (the conclusion MUST be a formula variable)
3002
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2649
  + ignores types, which can make HOL proofs fail
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2650
  + rules must not require higher-order unification, e.g. apply_type in ZF
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2651
    [message "Function Var's argument not a bound variable" relates to this]
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2652
  + its proof strategy is more general but can actually be slower
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2653
3107
wenzelm
parents: 3042
diff changeset
  2654
* substitution with equality assumptions no longer permutes other
wenzelm
parents: 3042
diff changeset
  2655
assumptions;
3002
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2656
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2657
* minor changes in semantics of addafter (now called addaltern); renamed
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2658
setwrapper to setWrapper and compwrapper to compWrapper; added safe wrapper
3107
wenzelm
parents: 3042
diff changeset
  2659
(and access functions for it);
3002
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2660
5726
wenzelm
parents: 5722
diff changeset
  2661
* improved combination of classical reasoner and simplifier:
3317
2cfb98c49c42 adapted entry for addss, addSss
oheimb
parents: 3316
diff changeset
  2662
  + functions for handling clasimpsets
2cfb98c49c42 adapted entry for addss, addSss
oheimb
parents: 3316
diff changeset
  2663
  + improvement of addss: now the simplifier is called _after_ the
2cfb98c49c42 adapted entry for addss, addSss
oheimb
parents: 3316
diff changeset
  2664
    safe steps.
2cfb98c49c42 adapted entry for addss, addSss
oheimb
parents: 3316
diff changeset
  2665
  + safe variant of addss called addSss: uses safe simplifications
5726
wenzelm
parents: 5722
diff changeset
  2666
    _during_ the safe steps. It is more complete as it allows multiple
3317
2cfb98c49c42 adapted entry for addss, addSss
oheimb
parents: 3316
diff changeset
  2667
    instantiations of unknowns (e.g. with slow_tac).
3006
wenzelm
parents: 3002
diff changeset
  2668
3002
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2669
*** Simplifier ***
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2670
3006
wenzelm
parents: 3002
diff changeset
  2671
* added interface for simplification procedures (functions that
wenzelm
parents: 3002
diff changeset
  2672
produce *proven* rewrite rules on the fly, depending on current
wenzelm
parents: 3002
diff changeset
  2673
redex);
wenzelm
parents: 3002
diff changeset
  2674
wenzelm
parents: 3002
diff changeset
  2675
* ordering on terms as parameter (used for ordered rewriting);
wenzelm
parents: 3002
diff changeset
  2676
3107
wenzelm
parents: 3042
diff changeset
  2677
* new functions delcongs, deleqcongs, and Delcongs. richer rep_ss;
3002
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2678
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2679
* the solver is now split into a safe and an unsafe part.
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2680
This should be invisible for the normal user, except that the
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2681
functions setsolver and addsolver have been renamed to setSolver and
3107
wenzelm
parents: 3042
diff changeset
  2682
addSolver; added safe_asm_full_simp_tac;
3002
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2683
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2684
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2685
*** HOL ***
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2686
3042
21cd332b65d3 induct_tac
nipkow
parents: 3006
diff changeset
  2687
* a generic induction tactic `induct_tac' which works for all datatypes and
3107
wenzelm
parents: 3042
diff changeset
  2688
also for type `nat';
3042
21cd332b65d3 induct_tac
nipkow
parents: 3006
diff changeset
  2689
3316
nipkow
parents: 3227
diff changeset
  2690
* a generic case distinction tactic `exhaust_tac' which works for all
nipkow
parents: 3227
diff changeset
  2691
datatypes and also for type `nat';
nipkow
parents: 3227
diff changeset
  2692
nipkow
parents: 3227
diff changeset
  2693
* each datatype comes with a function `size';
nipkow
parents: 3227
diff changeset
  2694
3002
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2695
* patterns in case expressions allow tuple patterns as arguments to
3107
wenzelm
parents: 3042
diff changeset
  2696
constructors, for example `case x of [] => ... | (x,y,z)#ps => ...';
3002
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2697
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2698
* primrec now also works with type nat;
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2699
3338
b99d750f6a37 Added recdef
paulson
parents: 3321
diff changeset
  2700
* recdef: a new declaration form, allows general recursive functions to be
b99d750f6a37 Added recdef
paulson
parents: 3321
diff changeset
  2701
defined in theory files.  See HOL/ex/Fib, HOL/ex/Primes, HOL/Subst/Unify.
b99d750f6a37 Added recdef
paulson
parents: 3321
diff changeset
  2702
3002
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2703
* the constant for negation has been renamed from "not" to "Not" to
3107
wenzelm
parents: 3042
diff changeset
  2704
harmonize with FOL, ZF, LK, etc.;
3002
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2705
3107
wenzelm
parents: 3042
diff changeset
  2706
* HOL/ex/LFilter theory of a corecursive "filter" functional for
wenzelm
parents: 3042
diff changeset
  2707
infinite lists;
3002
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2708
3227
9190438471ea *** empty log message ***
wenzelm
parents: 3205
diff changeset
  2709
* HOL/Modelcheck demonstrates invocation of model checker oracle;
9190438471ea *** empty log message ***
wenzelm
parents: 3205
diff changeset
  2710
3002
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2711
* HOL/ex/Ring.thy declares cring_simp, which solves equational
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2712
problems in commutative rings, using axiomatic type classes for + and *;
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2713
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2714
* more examples in HOL/MiniML and HOL/Auth;
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2715
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2716
* more default rewrite rules for quantifiers, union/intersection;
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2717
3321
c609a0119fd8 arbitrary
nipkow
parents: 3317
diff changeset
  2718
* a new constant `arbitrary == @x.False';
c609a0119fd8 arbitrary
nipkow
parents: 3317
diff changeset
  2719
3107
wenzelm
parents: 3042
diff changeset
  2720
* HOLCF/IOA replaces old HOL/IOA;
wenzelm
parents: 3042
diff changeset
  2721
5726
wenzelm
parents: 5722
diff changeset
  2722
* HOLCF changes: derived all rules and arities
wenzelm
parents: 5722
diff changeset
  2723
  + axiomatic type classes instead of classes
2653
f1a6997cdc06 described changes for HOLCF-Version without rules and arities
slotosch
parents: 2649
diff changeset
  2724
  + typedef instead of faking type definitions
2747
9fdc1461085f Tidied and updated
paulson
parents: 2732
diff changeset
  2725
  + eliminated the internal constants less_fun, less_cfun, UU_fun, UU_cfun etc.
2730
865995b744f5 *** empty log message ***
wenzelm
parents: 2726
diff changeset
  2726
  + new axclasses cpo, chfin, flat with flat < chfin < pcpo < cpo < po
2653
f1a6997cdc06 described changes for HOLCF-Version without rules and arities
slotosch
parents: 2649
diff changeset
  2727
  + eliminated the types void, one, tr
f1a6997cdc06 described changes for HOLCF-Version without rules and arities
slotosch
parents: 2649
diff changeset
  2728
  + use unit lift and bool lift (with translations) instead of one and tr
f1a6997cdc06 described changes for HOLCF-Version without rules and arities
slotosch
parents: 2649
diff changeset
  2729
  + eliminated blift from Lift3.thy (use Def instead of blift)
3107
wenzelm
parents: 3042
diff changeset
  2730
  all eliminated rules are derived as theorems --> no visible changes ;
2649
2edc5b01e5a7 improved description of recent changes
oheimb
parents: 2639
diff changeset
  2731
3006
wenzelm
parents: 3002
diff changeset
  2732
3002
223e5d65faaa Reorganized under headings. Also documented Blast_tac and LFilter
paulson
parents: 2993
diff changeset
  2733
*** ZF ***
2553
ed941505cab7 Isabelle NEWS -- history of user-visible changes;
wenzelm
parents:
diff changeset
  2734
2865
77daca16b2f4 ZF.thy is again usable
paulson
parents: 2825
diff changeset
  2735
* ZF now has Fast_tac, Simp_tac and Auto_tac.  Union_iff is a now a default
77daca16b2f4 ZF.thy is again usable
paulson
parents: 2825
diff changeset
  2736
rewrite rule; this may affect some proofs.  eq_cs is gone but can be put back
77daca16b2f4 ZF.thy is again usable
paulson
parents: 2825
diff changeset
  2737
as ZF_cs addSIs [equalityI];
2553
ed941505cab7 Isabelle NEWS -- history of user-visible changes;
wenzelm
parents:
diff changeset
  2738
2554
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2739
2732
84fc9c3b6bf0 *** empty log message ***
wenzelm
parents: 2731
diff changeset
  2740
2553
ed941505cab7 Isabelle NEWS -- history of user-visible changes;
wenzelm
parents:
diff changeset
  2741
New in Isabelle94-7 (November 96)
ed941505cab7 Isabelle NEWS -- history of user-visible changes;
wenzelm
parents:
diff changeset
  2742
---------------------------------
ed941505cab7 Isabelle NEWS -- history of user-visible changes;
wenzelm
parents:
diff changeset
  2743
ed941505cab7 Isabelle NEWS -- history of user-visible changes;
wenzelm
parents:
diff changeset
  2744
* allowing negative levels (as offsets) in prlev and choplev;
ed941505cab7 Isabelle NEWS -- history of user-visible changes;
wenzelm
parents:
diff changeset
  2745
2554
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2746
* super-linear speedup for large simplifications;
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2747
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2748
* FOL, ZF and HOL now use miniscoping: rewriting pushes
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2749
quantifications in as far as possible (COULD MAKE EXISTING PROOFS
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2750
FAIL); can suppress it using the command Delsimps (ex_simps @
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2751
all_simps); De Morgan laws are also now included, by default;
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2752
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2753
* improved printing of ==>  :  ~:
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2754
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2755
* new object-logic "Sequents" adds linear logic, while replacing LK
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2756
and Modal (thanks to Sara Kalvala);
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2757
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2758
* HOL/Auth: correctness proofs for authentication protocols;
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2759
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2760
* HOL: new auto_tac combines rewriting and classical reasoning (many
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2761
examples on HOL/Auth);
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2762
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2763
* HOL: new command AddIffs for declaring theorems of the form P=Q to
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2764
the rewriter and classical reasoner simultaneously;
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2765
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2766
* function uresult no longer returns theorems in "standard" format;
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2767
regain previous version by: val uresult = standard o uresult;
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2768
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2769
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2770
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2771
New in Isabelle94-6
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2772
-------------------
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2773
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2774
* oracles -- these establish an interface between Isabelle and trusted
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2775
external reasoners, which may deliver results as theorems;
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2776
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2777
* proof objects (in particular record all uses of oracles);
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2778
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2779
* Simp_tac, Fast_tac, etc. that refer to implicit simpset / claset;
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2780
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2781
* "constdefs" section in theory files;
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2782
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2783
* "primrec" section (HOL) no longer requires names;
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2784
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2785
* internal type "tactic" now simply "thm -> thm Sequence.seq";
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2786
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2787
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2788
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2789
New in Isabelle94-5
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2790
-------------------
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2791
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2792
* reduced space requirements;
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2793
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2794
* automatic HTML generation from theories;
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2795
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2796
* theory files no longer require "..." (quotes) around most types;
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2797
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2798
* new examples, including two proofs of the Church-Rosser theorem;
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2799
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2800
* non-curried (1994) version of HOL is no longer distributed;
1b160cd50130 *** empty log message ***
wenzelm
parents: 2553
diff changeset
  2801
2553
ed941505cab7 Isabelle NEWS -- history of user-visible changes;
wenzelm
parents:
diff changeset
  2802
2557
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2803
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2804
New in Isabelle94-4
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2805
-------------------
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2806
2747
9fdc1461085f Tidied and updated
paulson
parents: 2732
diff changeset
  2807
* greatly reduced space requirements;
2557
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2808
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2809
* theory files (.thy) no longer require \...\ escapes at line breaks;
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2810
5726
wenzelm
parents: 5722
diff changeset
  2811
* searchable theorem database (see the section "Retrieving theorems" on
2557
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2812
page 8 of the Reference Manual);
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2813
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2814
* new examples, including Grabczewski's monumental case study of the
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2815
Axiom of Choice;
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2816
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2817
* The previous version of HOL renamed to Old_HOL;
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2818
5726
wenzelm
parents: 5722
diff changeset
  2819
* The new version of HOL (previously called CHOL) uses a curried syntax
2557
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2820
for functions.  Application looks like f a b instead of f(a,b);
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2821
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2822
* Mutually recursive inductive definitions finally work in HOL;
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2823
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2824
* In ZF, pattern-matching on tuples is now available in all abstractions and
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2825
translates to the operator "split";
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2826
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2827
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2828
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2829
New in Isabelle94-3
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2830
-------------------
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2831
5726
wenzelm
parents: 5722
diff changeset
  2832
* new infix operator, addss, allowing the classical reasoner to
2557
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2833
perform simplification at each step of its search.  Example:
5726
wenzelm
parents: 5722
diff changeset
  2834
        fast_tac (cs addss ss)
2557
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2835
5726
wenzelm
parents: 5722
diff changeset
  2836
* a new logic, CHOL, the same as HOL, but with a curried syntax
wenzelm
parents: 5722
diff changeset
  2837
for functions.  Application looks like f a b instead of f(a,b).  Also pairs
2557
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2838
look like (a,b) instead of <a,b>;
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2839
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2840
* PLEASE NOTE: CHOL will eventually replace HOL!
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2841
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2842
* In CHOL, pattern-matching on tuples is now available in all abstractions.
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2843
It translates to the operator "split".  A new theory of integers is available;
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2844
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2845
* In ZF, integer numerals now denote two's-complement binary integers.
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2846
Arithmetic operations can be performed by rewriting.  See ZF/ex/Bin.ML;
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2847
5726
wenzelm
parents: 5722
diff changeset
  2848
* Many new examples: I/O automata, Church-Rosser theorem, equivalents
2557
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2849
of the Axiom of Choice;
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2850
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2851
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2852
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2853
New in Isabelle94-2
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2854
-------------------
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2855
5726
wenzelm
parents: 5722
diff changeset
  2856
* Significantly faster resolution;
2557
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2857
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2858
* the different sections in a .thy file can now be mixed and repeated
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2859
freely;
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2860
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2861
* Database of theorems for FOL, HOL and ZF.  New
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2862
commands including qed, qed_goal and bind_thm store theorems in the database.
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2863
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2864
* Simple database queries: return a named theorem (get_thm) or all theorems of
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2865
a given theory (thms_of), or find out what theory a theorem was proved in
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2866
(theory_of_thm);
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2867
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2868
* Bugs fixed in the inductive definition and datatype packages;
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2869
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2870
* The classical reasoner provides deepen_tac and depth_tac, making FOL_dup_cs
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2871
and HOL_dup_cs obsolete;
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2872
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2873
* Syntactic ambiguities caused by the new treatment of syntax in Isabelle94-1
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2874
have been removed;
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2875
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2876
* Simpler definition of function space in ZF;
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2877
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2878
* new results about cardinal and ordinal arithmetic in ZF;
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2879
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2880
* 'subtype' facility in HOL for introducing new types as subsets of existing
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2881
types;
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2882
dffebc6ab0a1 More news items, dating back to 1995
paulson
parents: 2556
diff changeset
  2883
2553
ed941505cab7 Isabelle NEWS -- history of user-visible changes;
wenzelm
parents:
diff changeset
  2884
$Id$