NEWS
author wenzelm
Thu, 03 Jan 2002 17:50:53 +0100
changeset 12622 7592926925d4
parent 12608 2df381faa787
child 12690 ac3fa7c05e5a
permissions -rw-r--r--
tuned;
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
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0cf15843b82f isatool install;
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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 Isabelle2001 (December 2001)
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-----------------------------------
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*** Document preparation ***
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* greatly simplified document preparation setup, including more
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graceful interpretation of isatool usedir -i/-d/-D options, and more
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instructive isatool mkdir; users should basically be able to get
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started with "isatool mkdir Test && isatool make";
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* theory dependency graph may now be incorporated into documents;
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isatool usedir -g true will produce session_graph.eps/.pdf for use
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with \includegraphics of LaTeX;
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* proper spacing of consecutive markup elements, especially text
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blocks after section headings;
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* support bold style (for single symbols only), input syntax is like
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this: "\<^bold>\<alpha>" or "\<^bold>A";
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* \<bullet> is now output as bold \cdot by default, which looks much
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better in printed text;
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* added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
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note that these symbols are currently unavailable in Proof General /
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X-Symbol;
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*** Isar ***
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* Pure/Provers: improved proof by cases and induction;
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  - 'case' command admits impromptu naming of parameters (such as
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    "case (Suc n)");
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  - 'induct' method divinates rule instantiation from the inductive
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    claim; no longer requires excessive ?P bindings for proper
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    instantiation of cases;
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  - 'induct' method properly enumerates all possibilities of set/type
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    rules; as a consequence facts may be also passed through *type*
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    rules without further ado;
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  - 'induct' method now derives symbolic cases from the *rulified*
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    rule (before it used to rulify cases stemming from the internal
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    atomized version); this means that the context of a non-atomic
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    statement becomes is included in the hypothesis, avoiding the
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    slightly cumbersome show "PROP ?case" form;
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  - 'induct' may now use elim-style induction rules without chaining
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    facts, using ``missing'' premises from the goal state; this allows
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    rules stemming from inductive sets to be applied in unstructured
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    scripts, while still benefitting from proper handling of non-atomic
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    statements; NB: major inductive premises need to be put first, all
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    the rest of the goal is passed through the induction;
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  - 'induct' proper support for mutual induction involving non-atomic
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    rule statements (uses the new concept of simultaneous goals, see
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    below);
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  - removed obsolete "(simplified)" and "(stripped)" options of methods;
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  - added 'print_induct_rules' (covered by help item in Proof General > 3.3);
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  - moved induct/cases attributes to Pure, methods to Provers;
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  - generic method setup instantiated for FOL and HOL;
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* Pure: support multiple simultaneous goal statements, for example
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"have a: A and b: B" (same for 'theorem' etc.); being a pure
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meta-level mechanism, this acts as if several individual goals had
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been stated separately; in particular common proof methods need to be
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repeated in order to cover all claims; note that a single elimination
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step is *not* sufficient to establish the two conjunctions, so this
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fails:
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  assume "A & B" then have A and B ..   (*".." fails*)
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better use "obtain" in situations as above; alternative refer to
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multi-step methods like 'auto', 'simp_all', 'blast+' etc.;
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* Pure: proper integration with ``locales''; unlike the original
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version by Florian Kammüller, Isar locales package high-level proof
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contexts rather than raw logical ones (e.g. we admit to include
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attributes everywhere); operations on locales include merge and
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rename; e.g. see HOL/ex/Locales.thy;
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* Pure: theory goals now support ad-hoc contexts, which are discharged
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in the result, as in ``lemma (assumes A and B) K: A .''; syntax
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coincides with that of a locale body;
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* Pure: renamed "antecedent" case to "rule_context";
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* Pure: added 'corollary' command;
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* Pure: fixed 'token_translation' command;
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* Pure: removed obsolete 'exported' attribute;
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* Pure: dummy pattern "_" in is/let is now automatically lifted over
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bound variables: "ALL x. P x --> Q x" (is "ALL x. _ --> ?C x")
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supersedes more cumbersome ... (is "ALL x. _ x --> ?C x");
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* Pure: method 'atomize' presents local goal premises as object-level
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statements (atomic meta-level propositions); setup controlled via
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rewrite rules declarations of 'atomize' attribute; example
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application: 'induct' method with proper rule statements in improper
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proof *scripts*;
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* Pure: emulation of instantiation tactics (rule_tac, cut_tac, etc.)
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now consider the syntactic context of assumptions, giving a better
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chance to get type-inference of the arguments right (this is
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especially important for locales);
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* Pure: "sorry" no longer requires quick_and_dirty in interactive
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mode;
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* Pure/obtain: the formal conclusion "thesis", being marked as
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``internal'', may no longer be reference directly in the text;
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potential INCOMPATIBILITY, may need to use "?thesis" in rare
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situations;
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* Pure: generic 'sym' attribute which declares a rule both as pure
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'elim?' and for the 'symmetric' operation;
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* Pure/Provers/classical: simplified integration with pure rule
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attributes and methods; the classical "intro?/elim?/dest?"
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declarations coincide with the pure ones; the "rule" method no longer
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includes classically swapped intros; "intro" and "elim" methods no
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longer pick rules from the context; also got rid of ML declarations
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AddXIs/AddXEs/AddXDs; all of this has some potential for
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INCOMPATIBILITY;
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* Provers/classical: attribute 'swapped' produces classical inversions
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of introduction rules;
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* Provers/simplifier: 'simplified' attribute may refer to explicit
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rules instead of full simplifier context; 'iff' attribute handles
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conditional rules;
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* HOL: 'typedef' now allows alternative names for Rep/Abs morphisms;
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* HOL: 'recdef' now fails on unfinished automated proofs, use
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"(permissive)" option to recover old behavior;
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* HOL: 'inductive' no longer features separate (collective) attributes
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for 'intros' (was found too confusing);
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* HOL: properly declared induction rules less_induct and
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wf_induct_rule;
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*** HOL ***
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* HOL: moved over to sane numeral syntax; the new policy is as
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follows:
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  - 0 and 1 are polymorphic constants, which are defined on any
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  numeric type (nat, int, real etc.);
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  - 2, 3, 4, ... and -1, -2, -3, ... are polymorphic numerals, based
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  binary representation internally;
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  - type nat has special constructor Suc, and generally prefers Suc 0
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  over 1::nat and Suc (Suc 0) over 2::nat;
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This change may cause significant problems of INCOMPATIBILITY; here
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are some hints on converting existing sources:
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  - due to the new "num" token, "-0" and "-1" etc. are now atomic
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  entities, so expressions involving "-" (unary or binary minus) need
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  to be spaced properly;
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  - existing occurrences of "1" may need to be constraint "1::nat" or
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  even replaced by Suc 0; similar for old "2";
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  - replace "#nnn" by "nnn", and "#-nnn" by "-nnn";
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  - remove all special provisions on numerals in proofs;
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* HOL: the class of all HOL types is now called "type" rather than
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"term"; INCOMPATIBILITY, need to adapt references to this type class
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in axclass/classes, instance/arities, and (usually rare) occurrences
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in typings (of consts etc.); internally the class is called
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"HOL.type", ML programs should refer to HOLogic.typeS;
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* HOL/record package improvements:
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  - new derived operations "fields" to build a partial record section,
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    "extend" to promote a fixed record to a record scheme, and
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    "truncate" for the reverse; cf. theorems "xxx.defs", which are *not*
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    declared as simp by default;
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  - shared operations ("more", "fields", etc.) now need to be always
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    qualified) --- potential INCOMPATIBILITY;
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  - removed "make_scheme" operations (use "make" with "extend") --
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    INCOMPATIBILITY;
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  - removed "more" class (simply use "term") -- INCOMPATIBILITY;
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  - provides cases/induct rules for use with corresponding Isar
1886dc96b7e9 * HOL/record: cases/induct for more parts;
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    methods (for concrete records, record schemes, concrete more
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    parts, and schematic more parts -- in that order);
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  - internal definitions directly based on a light-weight abstract
1accec985349 * HOL/record:
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    theory of product types over typedef rather than datatype;
1accec985349 * HOL/record:
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11933
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* HOL: canonical cases/induct rules for n-tuples (n = 3..7);
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* HOL: concrete setsum syntax "\<Sum>i:A. b" == "setsum (%i. b) A"
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(beware of argument permutation!);
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* HOL: linorder_less_split superseded by linorder_cases;
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* HOL: added "The" definite description operator; move Hilbert's "Eps"
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to peripheral theory "Hilbert_Choice";
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* HOL: made split_all_tac safe; EXISTING PROOFS MAY FAIL OR LOOP, so
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in this (rare) case use:
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  delSWrapper "split_all_tac"
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  addSbefore ("unsafe_split_all_tac", unsafe_split_all_tac)
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* HOL: added safe wrapper "split_conv_tac" to claset; EXISTING PROOFS
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MAY FAIL;
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* HOL: introduced f^n = f o ... o f; warning: due to the limits of
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Isabelle's type classes, ^ on functions and relations has too general
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a domain, namely ('a * 'b) set and 'a => 'b; this means that it may be
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necessary to attach explicit type constraints;
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* HOL/Relation: the prefix name of the infix "O" has been changed from "comp"
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to "rel_comp"; INCOMPATIBILITY: a few theorems have been renamed accordingly
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(eg "compI" -> "rel_compI").
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* HOL: syntax translations now work properly with numerals and records
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expressions;
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* HOL: bounded abstraction now uses syntax "%" / "\<lambda>" instead
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of "lam" -- INCOMPATIBILITY;
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* HOL: got rid of some global declarations (potential INCOMPATIBILITY
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for ML tools): const "()" renamed "Product_Type.Unity", type "unit"
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renamed "Product_Type.unit";
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* HOL: renamed rtrancl_into_rtrancl2 to converse_rtrancl_into_rtrancl
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* HOL/GroupTheory: group theory examples including Sylow's theorem (by
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Florian Kammüller);
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* HOL/IMP: updated and converted to new-style theory format; several
2df381faa787 * ZF/IMP: updated and converted to new-style theory format;
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parts turned into readable document, with proper Isar proof texts and
2df381faa787 * ZF/IMP: updated and converted to new-style theory format;
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some explanations (by Gerwin Klein);
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*** HOLCF ***
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* Isar: consts/constdefs supports mixfix syntax for continuous
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operations;
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* Isar: domain package adapted to new-style theory format, e.g. see
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HOLCF/ex/Dnat.thy;
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* theory Lift: proper use of rep_datatype lift instead of ML hacks --
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potential INCOMPATIBILITY; now use plain induct_tac instead of former
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lift.induct_tac, always use UU instead of Undef;
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* HOLCF/IMP: updated and converted to new-style theory;
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*** ZF ***
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* Isar: proper integration of logic-specific tools and packages,
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including theory commands '(co)inductive', '(co)datatype',
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'rep_datatype', 'inductive_cases', as well as methods 'ind_cases',
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'induct_tac', 'case_tac', and 'typecheck' (with attribute 'TC');
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* theory Main no longer includes AC; for the Axiom of Choice, base
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your theory on Main_ZFC;
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* the integer library now covers quotients and remainders, with many
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laws relating division to addition, multiplication, etc.;
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3813bcab493d ZF/Main
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* ZF/UNITY: Chandy and Misra's UNITY is now available in ZF, giving a
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typeless version of the formalism;
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* ZF/IMP: updated and converted to new-style theory format;
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* ZF/Induct: new directory for examples of inductive definitions,
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including theory Multiset for multiset orderings; converted to
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new-style theory format;
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*** General ***
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* Pure/kernel: meta-level proof terms (by Stefan Berghofer); reference
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variable proof controls level of detail: 0 = no proofs (only oracle
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dependencies), 1 = lemma dependencies, 2 = compact proof terms; see
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also ref manual for further ML interfaces;
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* Pure/axclass: removed obsolete ML interface
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goal_subclass/goal_arity;
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* Pure/syntax: new token syntax "num" for plain numerals (without "#"
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of "xnum"); potential INCOMPATIBILITY, since -0, -1 etc. are now
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separate tokens, so expressions involving minus need to be spaced
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properly;
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* Pure/syntax: support non-oriented infixes, using keyword "infix"
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rather than "infixl" or "infixr";
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
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f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
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* Pure/syntax: concrete syntax for dummy type variables admits genuine
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
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sort constraint specifications in type inference; e.g. "x::_::foo"
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ensures that the type of "x" is of sort "foo" (but not necessarily a
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type variable);
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* Pure/syntax: print modes "type_brackets" and "no_type_brackets"
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control output of nested => (types); the default behavior is
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"type_brackets";
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* Pure/syntax: builtin parse translation for "_constify" turns valued
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tokens into AST constants;
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* Pure/syntax: prefer later declarations of translations and print
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translation functions; potential INCOMPATIBILITY: need to reverse
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multiple declarations for same syntax element constant;
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* Provers/classical: renamed addaltern to addafter, addSaltern to
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addSafter;
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* Provers/clasimp: ``iff'' declarations now handle conditional rules
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as well;
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* system: tested support for MacOS X; should be able to get Isabelle +
150af0a4bb11 * system: tested support for MacOS X;
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Proof General to work in a plain Terminal after installing Poly/ML
150af0a4bb11 * system: tested support for MacOS X;
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(e.g. from the Isabelle distribution area) and GNU bash alone
150af0a4bb11 * system: tested support for MacOS X;
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(e.g. from http://www.apple.com); full X11, XEmacs and X-Symbol
150af0a4bb11 * system: tested support for MacOS X;
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support requires further installations, e.g. from
150af0a4bb11 * system: tested support for MacOS X;
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http://fink.sourceforge.net/);
150af0a4bb11 * system: tested support for MacOS X;
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* system: support Poly/ML 4.1.1 (able to manage larger heaps);
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* system: Proof General keywords specification is now part of the
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Isabelle distribution (see etc/isar-keywords.el);
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* system: some support for persistent Proof General sessions (refrain
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
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from outdating all loaded theories on startup);
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
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* system: smart selection of Isabelle process versus Isabelle
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interface, accommodates case-insensitive file systems (e.g. HFS+); may
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run both "isabelle" and "Isabelle" even if file names are badly
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damaged (executable inspects the case of the first letter of its own
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name); added separate "isabelle-process" and "isabelle-interface";
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* system: refrain from any attempt at filtering input streams; no
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longer support ``8bit'' encoding of old isabelle font, instead proper
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iso-latin characters may now be used; the related isatools
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"symbolinput" and "nonascii" have disappeared as well;
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* system: removed old "xterm" interface (the print modes "xterm" and
wenzelm
parents: 12467
diff changeset
   350
"xterm_color" are still available for direct use in a suitable
wenzelm
parents: 12467
diff changeset
   351
terminal);
wenzelm
parents: 12467
diff changeset
   352
11314
f6eebbbed449 ZF: division
paulson
parents: 11307
diff changeset
   353
11169
98c2f741e32b made split_all_tac safe introducing safe_full_simp_tac, EXISTING PROOFS MAY FAIL
oheimb
parents: 11130
diff changeset
   354
11062
wenzelm
parents: 11050
diff changeset
   355
New in Isabelle99-2 (February 2001)
wenzelm
parents: 11050
diff changeset
   356
-----------------------------------
wenzelm
parents: 11050
diff changeset
   357
10224
7263c856787e *** empty log message ***
nipkow
parents: 10164
diff changeset
   358
*** Overview of INCOMPATIBILITIES ***
7263c856787e *** empty log message ***
nipkow
parents: 10164
diff changeset
   359
11241
61b21aacf04a Isar hint
paulson
parents: 11181
diff changeset
   360
* HOL: please note that theories in the Library and elsewhere often use the
61b21aacf04a Isar hint
paulson
parents: 11181
diff changeset
   361
new-style (Isar) format; to refer to their theorems in an ML script you must
12622
wenzelm
parents: 12608
diff changeset
   362
bind them to ML identifers by e.g.      val thm_name = thm "thm_name";
11241
61b21aacf04a Isar hint
paulson
parents: 11181
diff changeset
   363
11043
2e3bbac8763b HOL: inductive package no longer splits induction rule aggressively,
wenzelm
parents: 11016
diff changeset
   364
* HOL: inductive package no longer splits induction rule aggressively,
2e3bbac8763b HOL: inductive package no longer splits induction rule aggressively,
wenzelm
parents: 11016
diff changeset
   365
but only as far as specified by the introductions given; the old
11130
d14fd58615b9 added missiong word
oheimb
parents: 11124
diff changeset
   366
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
   367
'split_rule (complete)';
2e3bbac8763b HOL: inductive package no longer splits induction rule aggressively,
wenzelm
parents: 11016
diff changeset
   368
10998
wenzelm
parents: 10976
diff changeset
   369
* HOL: induct renamed to lfp_induct, lfp_Tarski to lfp_unfold,
wenzelm
parents: 10976
diff changeset
   370
gfp_Tarski to gfp_unfold;
10224
7263c856787e *** empty log message ***
nipkow
parents: 10164
diff changeset
   371
10288
00abecbfa46a contrapos
paulson
parents: 10245
diff changeset
   372
* HOL: contrapos, contrapos2 renamed to contrapos_nn, contrapos_pp;
00abecbfa46a contrapos
paulson
parents: 10245
diff changeset
   373
10858
wenzelm
parents: 10856
diff changeset
   374
* HOL: infix "dvd" now has priority 50 rather than 70 (because it is a
wenzelm
parents: 10856
diff changeset
   375
relation); infix "^^" has been renamed "``"; infix "``" has been
wenzelm
parents: 10856
diff changeset
   376
renamed "`"; "univalent" has been renamed "single_valued";
10793
4d6cf7702e3c *** empty log message ***
nipkow
parents: 10770
diff changeset
   377
10998
wenzelm
parents: 10976
diff changeset
   378
* HOL/Real: "rinv" and "hrinv" replaced by overloaded "inverse"
wenzelm
parents: 10976
diff changeset
   379
operation;
wenzelm
parents: 10976
diff changeset
   380
10868
5af3906edec8 *** empty log message ***
nipkow
parents: 10862
diff changeset
   381
* HOLCF: infix "`" has been renamed "$"; the symbol syntax is \<cdot>;
10856
e8a5340418b6 *** empty log message ***
nipkow
parents: 10799
diff changeset
   382
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   383
* Isar: 'obtain' no longer declares "that" fact as simp/intro;
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   384
10401
58bb50f69497 * Isar/HOL: method 'induct' now handles non-atomic goals; as a
wenzelm
parents: 10391
diff changeset
   385
* 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
   386
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
   387
(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
   388
10976
0e7cf6f9fa29 * Document preparation: renamed standard symbols \<ll> to \<lless> and
wenzelm
parents: 10966
diff changeset
   389
* Document preparation: renamed standard symbols \<ll> to \<lless> and
0e7cf6f9fa29 * Document preparation: renamed standard symbols \<ll> to \<lless> and
wenzelm
parents: 10966
diff changeset
   390
\<gg> to \<ggreater>;
0e7cf6f9fa29 * Document preparation: renamed standard symbols \<ll> to \<lless> and
wenzelm
parents: 10966
diff changeset
   391
10224
7263c856787e *** empty log message ***
nipkow
parents: 10164
diff changeset
   392
10245
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
   393
*** Document preparation ***
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
   394
10858
wenzelm
parents: 10856
diff changeset
   395
* \isabellestyle{NAME} selects version of Isabelle output (currently
wenzelm
parents: 10856
diff changeset
   396
available: are "it" for near math-mode best-style output, "sl" for
wenzelm
parents: 10856
diff changeset
   397
slanted text style, and "tt" for plain type-writer; if no
wenzelm
parents: 10856
diff changeset
   398
\isabellestyle command is given, output is according to slanted
wenzelm
parents: 10856
diff changeset
   399
type-writer);
wenzelm
parents: 10856
diff changeset
   400
10322
df38c61bf541 * support sub/super scripts (for single symbols only), input syntax is
wenzelm
parents: 10306
diff changeset
   401
* 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
   402
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
   403
10858
wenzelm
parents: 10856
diff changeset
   404
* some more standard symbols; see Appendix A of the system manual for
11062
wenzelm
parents: 11050
diff changeset
   405
the complete list of symbols defined in isabellesym.sty;
10858
wenzelm
parents: 10856
diff changeset
   406
10998
wenzelm
parents: 10976
diff changeset
   407
* improved isabelle style files; more abstract symbol implementation
wenzelm
parents: 10976
diff changeset
   408
(should now use \isamath{...} and \isatext{...} in custom symbol
wenzelm
parents: 10976
diff changeset
   409
definitions);
wenzelm
parents: 10976
diff changeset
   410
10634
wenzelm
parents: 10609
diff changeset
   411
* antiquotation @{goals} and @{subgoals} for output of *dynamic* goals
wenzelm
parents: 10609
diff changeset
   412
state; Note that presentation of goal states does not conform to
wenzelm
parents: 10609
diff changeset
   413
actual human-readable proof documents.  Please do not include goal
wenzelm
parents: 10609
diff changeset
   414
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
   415
11062
wenzelm
parents: 11050
diff changeset
   416
* proper indentation of antiquoted output with proportional LaTeX
wenzelm
parents: 11050
diff changeset
   417
fonts;
10862
857688d775b0 isatool unsymbolize;
wenzelm
parents: 10858
diff changeset
   418
11050
ac5709ac50b9 * no_document ML operator temporarily disables LaTeX document
wenzelm
parents: 11043
diff changeset
   419
* no_document ML operator temporarily disables LaTeX document
ac5709ac50b9 * no_document ML operator temporarily disables LaTeX document
wenzelm
parents: 11043
diff changeset
   420
generation;
ac5709ac50b9 * no_document ML operator temporarily disables LaTeX document
wenzelm
parents: 11043
diff changeset
   421
11062
wenzelm
parents: 11050
diff changeset
   422
* isatool unsymbolize tunes sources for plain ASCII communication;
wenzelm
parents: 11050
diff changeset
   423
10322
df38c61bf541 * support sub/super scripts (for single symbols only), input syntax is
wenzelm
parents: 10306
diff changeset
   424
10306
b0ab988a27a9 * HOL: default proof step now includes 'intro_classes';
wenzelm
parents: 10288
diff changeset
   425
*** Isar ***
b0ab988a27a9 * HOL: default proof step now includes 'intro_classes';
wenzelm
parents: 10288
diff changeset
   426
10547
wenzelm
parents: 10514
diff changeset
   427
* Pure: Isar now suffers initial goal statements to contain unbound
wenzelm
parents: 10514
diff changeset
   428
schematic variables (this does not conform to actual readable proof
wenzelm
parents: 10514
diff changeset
   429
documents, due to unpredictable outcome and non-compositional proof
wenzelm
parents: 10514
diff changeset
   430
checking); users who know what they are doing may use schematic goals
wenzelm
parents: 10514
diff changeset
   431
for Prolog-style synthesis of proven results;
wenzelm
parents: 10514
diff changeset
   432
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   433
* Pure: assumption method (an implicit finishing) now handles actual
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   434
rules as well;
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   435
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   436
* Pure: improved 'obtain' --- moved to Pure, insert "that" into
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   437
initial goal, declare "that" only as Pure intro (only for single
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   438
steps); the "that" rule assumption may now be involved in implicit
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   439
finishing, thus ".." becomes a feasible for trivial obtains;
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   440
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   441
* Pure: default proof step now includes 'intro_classes'; thus trivial
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   442
instance proofs may be performed by "..";
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   443
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   444
* Pure: ?thesis / ?this / "..." now work for pure meta-level
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   445
statements as well;
10306
b0ab988a27a9 * HOL: default proof step now includes 'intro_classes';
wenzelm
parents: 10288
diff changeset
   446
11097
c1be9f2dff4c more robust selection of calculational rules;
wenzelm
parents: 11094
diff changeset
   447
* Pure: more robust selection of calculational rules;
c1be9f2dff4c more robust selection of calculational rules;
wenzelm
parents: 11094
diff changeset
   448
10858
wenzelm
parents: 10856
diff changeset
   449
* Pure: the builtin notion of 'finished' goal now includes the ==-refl
wenzelm
parents: 10856
diff changeset
   450
rule (as well as the assumption rule);
wenzelm
parents: 10856
diff changeset
   451
wenzelm
parents: 10856
diff changeset
   452
* Pure: 'thm_deps' command visualizes dependencies of theorems and
wenzelm
parents: 10856
diff changeset
   453
lemmas, using the graph browser tool;
wenzelm
parents: 10856
diff changeset
   454
10944
710ddb9e8b5e *** empty log message ***
wenzelm
parents: 10915
diff changeset
   455
* Pure: predict failure of "show" in interactive mode;
710ddb9e8b5e *** empty log message ***
wenzelm
parents: 10915
diff changeset
   456
11016
8f8ba41a5e7a * Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents: 10998
diff changeset
   457
* Pure: 'thms_containing' now takes actual terms as arguments;
8f8ba41a5e7a * Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents: 10998
diff changeset
   458
10401
58bb50f69497 * Isar/HOL: method 'induct' now handles non-atomic goals; as a
wenzelm
parents: 10391
diff changeset
   459
* 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
   460
(potential INCOMPATIBILITY); tuned error handling;
58bb50f69497 * Isar/HOL: method 'induct' now handles non-atomic goals; as a
wenzelm
parents: 10391
diff changeset
   461
10557
wenzelm
parents: 10547
diff changeset
   462
* HOL: cases and induct rules now provide explicit hints about the
10547
wenzelm
parents: 10514
diff changeset
   463
number of facts to be consumed (0 for "type" and 1 for "set" rules);
wenzelm
parents: 10514
diff changeset
   464
any remaining facts are inserted into the goal verbatim;
wenzelm
parents: 10514
diff changeset
   465
10858
wenzelm
parents: 10856
diff changeset
   466
* HOL: local contexts (aka cases) may now contain term bindings as
wenzelm
parents: 10856
diff changeset
   467
well; the 'cases' and 'induct' methods new provide a ?case binding for
wenzelm
parents: 10856
diff changeset
   468
the result to be shown in each case;
wenzelm
parents: 10856
diff changeset
   469
10770
4858ad0b8f38 * Isar/HOL: added 'recdef_tc' command;
wenzelm
parents: 10756
diff changeset
   470
* HOL: added 'recdef_tc' command;
4858ad0b8f38 * Isar/HOL: added 'recdef_tc' command;
wenzelm
parents: 10756
diff changeset
   471
11016
8f8ba41a5e7a * Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents: 10998
diff changeset
   472
* isatool convert assists in eliminating legacy ML scripts;
8f8ba41a5e7a * Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents: 10998
diff changeset
   473
10306
b0ab988a27a9 * HOL: default proof step now includes 'intro_classes';
wenzelm
parents: 10288
diff changeset
   474
10245
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
   475
*** HOL ***
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
   476
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
   477
* 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
   478
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
   479
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
   480
HOL/Induct/Multiset, HOL/Induct/Acc (as Accessible_Part), HOL/While
10337
fca9cd9fd115 added HOL/Library/List_Prefix;
wenzelm
parents: 10322
diff changeset
   481
(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
   482
10966
8f2c27041a8e added HOL-Unix example;
wenzelm
parents: 10944
diff changeset
   483
* HOL/Unix: "Some aspects of Unix file-system security", a typical
8f2c27041a8e added HOL-Unix example;
wenzelm
parents: 10944
diff changeset
   484
modelling and verification task performed in Isabelle/HOL +
8f2c27041a8e added HOL-Unix example;
wenzelm
parents: 10944
diff changeset
   485
Isabelle/Isar + Isabelle document preparation (by Markus Wenzel).
8f2c27041a8e added HOL-Unix example;
wenzelm
parents: 10944
diff changeset
   486
11094
wenzelm
parents: 11091
diff changeset
   487
* HOL/Algebra: special summation operator SUM no longer exists, it has
wenzelm
parents: 11091
diff changeset
   488
been replaced by setsum; infix 'assoc' now has priority 50 (like
wenzelm
parents: 11091
diff changeset
   489
'dvd'); axiom 'one_not_zero' has been moved from axclass 'ring' to
wenzelm
parents: 11091
diff changeset
   490
'domain', this makes the theory consistent with mathematical
wenzelm
parents: 11091
diff changeset
   491
literature;
wenzelm
parents: 11091
diff changeset
   492
10514
3db037155f0e * HOL: syntax or "abs";
wenzelm
parents: 10474
diff changeset
   493
* HOL basics: added overloaded operations "inverse" and "divide"
10726
wenzelm
parents: 10664
diff changeset
   494
(infix "/"), syntax for generic "abs" operation, generic summation
11094
wenzelm
parents: 11091
diff changeset
   495
operator \<Sum>;
10452
abeefb0a79ae * added overloaded operations "inverse" and "divide" (infix "/");
wenzelm
parents: 10428
diff changeset
   496
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   497
* HOL/typedef: simplified package, provide more useful rules (see also
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   498
HOL/subset.thy);
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   499
10915
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
   500
* HOL/datatype: induction rule for arbitrarily branching datatypes is
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
   501
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
   502
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
   503
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
   504
* 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
   505
to "split_conv" (old name still available for compatibility);
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
   506
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
   507
* 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
   508
rules with string literals);
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
   509
12245
3dd9aae402bb Hyperreal
paulson
parents: 12210
diff changeset
   510
* HOL-Real-Hyperreal: this extends HOL-Real with the hyperreals
3dd9aae402bb Hyperreal
paulson
parents: 12210
diff changeset
   511
 and Fleuriot's mechanization of analysis, including the transcendental
3dd9aae402bb Hyperreal
paulson
parents: 12210
diff changeset
   512
 functions for the reals;
10756
831c864cc56e Hyperreal
paulson
parents: 10726
diff changeset
   513
11094
wenzelm
parents: 11091
diff changeset
   514
* HOL/Real, HOL/Hyperreal: improved arithmetic simplification;
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   515
10858
wenzelm
parents: 10856
diff changeset
   516
10474
paulson
parents: 10461
diff changeset
   517
*** CTT ***
paulson
parents: 10461
diff changeset
   518
10547
wenzelm
parents: 10514
diff changeset
   519
* CTT: x-symbol support for Pi, Sigma, -->, : (membership); note that
wenzelm
parents: 10514
diff changeset
   520
"lam" is displayed as TWO lambda-symbols
10474
paulson
parents: 10461
diff changeset
   521
10547
wenzelm
parents: 10514
diff changeset
   522
* CTT: theory Main now available, containing everything (that is, Bool
wenzelm
parents: 10514
diff changeset
   523
and Arith);
wenzelm
parents: 10514
diff changeset
   524
10474
paulson
parents: 10461
diff changeset
   525
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   526
*** General ***
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   527
10547
wenzelm
parents: 10514
diff changeset
   528
* Pure: the Simplifier has been implemented properly as a derived rule
wenzelm
parents: 10514
diff changeset
   529
outside of the actual kernel (at last!); the overall performance
wenzelm
parents: 10514
diff changeset
   530
penalty in practical applications is about 50%, while reliability of
wenzelm
parents: 10514
diff changeset
   531
the Isabelle inference kernel has been greatly improved;
wenzelm
parents: 10514
diff changeset
   532
11112
wenzelm
parents: 11097
diff changeset
   533
* print modes "brackets" and "no_brackets" control output of nested =>
wenzelm
parents: 11097
diff changeset
   534
(types) and ==> (props); the default behaviour is "brackets";
wenzelm
parents: 11097
diff changeset
   535
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   536
* Provers: fast_tac (and friends) now handle actual object-logic rules
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   537
as assumptions as well;
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   538
11124
5b97a468b46d isatool install handles KDE version 1 or 2;
wenzelm
parents: 11112
diff changeset
   539
* system: support Poly/ML 4.0;
5b97a468b46d isatool install handles KDE version 1 or 2;
wenzelm
parents: 11112
diff changeset
   540
5b97a468b46d isatool install handles KDE version 1 or 2;
wenzelm
parents: 11112
diff changeset
   541
* system: isatool install handles KDE version 1 or 2;
5b97a468b46d isatool install handles KDE version 1 or 2;
wenzelm
parents: 11112
diff changeset
   542
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   543
10245
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
   544
10103
4e446f8cef3e Isabelle99-1 (October 2000);
wenzelm
parents: 10080
diff changeset
   545
New in Isabelle99-1 (October 2000)
4e446f8cef3e Isabelle99-1 (October 2000);
wenzelm
parents: 10080
diff changeset
   546
----------------------------------
8015
wenzelm
parents: 8014
diff changeset
   547
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   548
*** Overview of INCOMPATIBILITIES ***
8014
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
   549
8848
wenzelm
parents: 8832
diff changeset
   550
* HOL: simplification of natural numbers is much changed; to partly
wenzelm
parents: 8832
diff changeset
   551
recover the old behaviour (e.g. to prevent n+n rewriting to #2*n)
wenzelm
parents: 8832
diff changeset
   552
issue the following ML commands:
wenzelm
parents: 8832
diff changeset
   553
wenzelm
parents: 8832
diff changeset
   554
  Delsimprocs Nat_Numeral_Simprocs.cancel_numerals;
wenzelm
parents: 8832
diff changeset
   555
  Delsimprocs [Nat_Numeral_Simprocs.combine_numerals];
8788
518a5450ab6d simprocs
paulson
parents: 8736
diff changeset
   556
10129
a62b275ac0f7 improved t.weak_case_cong text;
wenzelm
parents: 10103
diff changeset
   557
* HOL: simplification no longer dives into case-expressions; this is
a62b275ac0f7 improved t.weak_case_cong text;
wenzelm
parents: 10103
diff changeset
   558
controlled by "t.weak_case_cong" for each datatype t;
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   559
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   560
* HOL: nat_less_induct renamed to less_induct;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   561
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   562
* HOL: systematic renaming of the SOME (Eps) rules, may use isatool
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   563
fixsome to patch .thy and .ML sources automatically;
8967
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
   564
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   565
  select_equality  -> some_equality
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   566
  select_eq_Ex     -> some_eq_ex
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   567
  selectI2EX       -> someI2_ex
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   568
  selectI2         -> someI2
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   569
  selectI          -> someI
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   570
  select1_equality -> some1_equality
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   571
  Eps_sym_eq       -> some_sym_eq_trivial
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   572
  Eps_eq           -> some_eq_trivial
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   573
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   574
* HOL: exhaust_tac on datatypes superceded by new generic case_tac;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   575
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   576
* HOL: removed obsolete theorem binding expand_if (refer to split_if
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   577
instead);
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   578
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   579
* HOL: the recursion equations generated by 'recdef' are now called
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   580
f.simps instead of f.rules;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   581
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   582
* HOL: qed_spec_mp now also handles bounded ALL as well;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   583
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   584
* HOL: 0 is now overloaded, so the type constraint ":: nat" may
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   585
sometimes be needed;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   586
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   587
* HOL: the constant for "f``x" is now "image" rather than "op ``";
8014
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
   588
10065
ddb3a014f721 renaming the inverse image operator in HOL
paulson
parents: 10003
diff changeset
   589
* 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
   590
9330
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
   591
* 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
   592
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
   593
now "<*lex*>" instead of "**";
8705
a3da5538d924 *** empty log message ***
nipkow
parents: 8673
diff changeset
   594
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   595
* 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
   596
of main HOL, but was unused); better use HOL's datatype package;
9971
e0164f01d55a renamed the select rules
paulson
parents: 9941
diff changeset
   597
10137
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
   598
* HOL: removed "symbols" syntax for constant "override" of theory Map;
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
   599
the old syntax may be recovered as follows:
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
   600
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
   601
  syntax (symbols)
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
   602
    override  :: "('a ~=> 'b) => ('a ~=> 'b) => ('a ~=> 'b)"
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
   603
      (infixl "\\<oplus>" 100)
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
   604
8848
wenzelm
parents: 8832
diff changeset
   605
* HOL/Real: "rabs" replaced by overloaded "abs" function;
wenzelm
parents: 8832
diff changeset
   606
8887
c0c583ce0b0b * HOL/ML: even fewer consts are declared as global (see theories Ord,
wenzelm
parents: 8848
diff changeset
   607
* 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
   608
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
   609
internally;
c0c583ce0b0b * HOL/ML: even fewer consts are declared as global (see theories Ord,
wenzelm
parents: 8848
diff changeset
   610
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   611
* HOL and ZF: syntax for quotienting wrt an equivalence relation
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   612
changed from A/r to A//r;
9908
7c7ff65b6846 HOL: qed_spec_mp now also removes bounded ALL;
wenzelm
parents: 9871
diff changeset
   613
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   614
* ZF: new treatment of arithmetic (nat & int) may break some old
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   615
proofs;
8921
7c04c98132c4 * Pure: changed syntax of local blocks from {{ }} to { };
wenzelm
parents: 8887
diff changeset
   616
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   617
* Isar: renamed some attributes (RS -> THEN, simplify -> simplified,
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   618
rulify -> rule_format, elimify -> elim_format, ...);
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
   619
9941
fe05af7ec816 renamed atts: rulify to rule_format, elimify to elim_format;
wenzelm
parents: 9937
diff changeset
   620
* Isar/Provers: intro/elim/dest attributes changed; renamed
fe05af7ec816 renamed atts: rulify to rule_format, elimify to elim_format;
wenzelm
parents: 9937
diff changeset
   621
intro/intro!/intro!! flags to intro!/intro/intro? (in most cases, one
9937
431c96ac997e replaced "delrule" by "rule del";
wenzelm
parents: 9908
diff changeset
   622
should have to change intro!! to intro? only); replaced "delrule" by
431c96ac997e replaced "delrule" by "rule del";
wenzelm
parents: 9908
diff changeset
   623
"rule del";
9437
93e91040c286 * Isar/Provers: intro/elim/dest attributes: changed
wenzelm
parents: 9402
diff changeset
   624
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
   625
* Isar/HOL: renamed "intrs" to "intros" in inductive definitions;
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
   626
9437
93e91040c286 * Isar/Provers: intro/elim/dest attributes: changed
wenzelm
parents: 9402
diff changeset
   627
* 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
   628
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   629
* LaTeX document preparation: several changes of isabelle.sty (see
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   630
lib/texinputs);
8729
094dbd0fad0c * improved name spaces: ambiguous output is qualified; support for
wenzelm
parents: 8705
diff changeset
   631
8014
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
   632
8487
5f3b0e02ec15 Isar: splitter support; improved diagnostics;
wenzelm
parents: 8440
diff changeset
   633
*** Document preparation ***
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
   634
9198
0ab3c81e9425 * formal comments (text blocks etc.) in new-style theories may now
wenzelm
parents: 9185
diff changeset
   635
* formal comments (text blocks etc.) in new-style theories may now
9753
wenzelm
parents: 9746
diff changeset
   636
contain antiquotations of thm/prop/term/typ/text to be presented
wenzelm
parents: 9746
diff changeset
   637
according to latex print mode; concrete syntax is like this:
wenzelm
parents: 9746
diff changeset
   638
@{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
   639
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
   640
* isatool mkdir provides easy setup of Isabelle session directories,
8518
wenzelm
parents: 8487
diff changeset
   641
including proper document sources;
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
   642
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
   643
* generated LaTeX sources are now deleted after successful run
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
   644
(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
   645
of isatool usedir;
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
   646
8566
30261b1917b5 usedir -D: update styles;
wenzelm
parents: 8534
diff changeset
   647
* 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
   648
style files, achieving self-contained LaTeX sources and simplifying
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   649
LaTeX debugging;
8566
30261b1917b5 usedir -D: update styles;
wenzelm
parents: 8534
diff changeset
   650
8518
wenzelm
parents: 8487
diff changeset
   651
* 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
   652
9057
af1ca1acf292 * browser info session directories are now self-contained (may be put
wenzelm
parents: 9052
diff changeset
   653
* 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
   654
on WWW server seperately); improved graphs of nested sessions; removed
93e91040c286 * Isar/Provers: intro/elim/dest attributes: changed
wenzelm
parents: 9402
diff changeset
   655
graph for 'all sessions';
9057
af1ca1acf292 * browser info session directories are now self-contained (may be put
wenzelm
parents: 9052
diff changeset
   656
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   657
* several improvements in isabelle style files; \isabellestyle{it}
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   658
produces fake math mode output; \isamarkupheader is now \section by
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   659
default; see lib/texinputs/isabelle.sty etc.;
9489
aa757b35b129 * blast(_tac) now handles actual object-logic rules as assumptions;
wenzelm
parents: 9457
diff changeset
   660
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
   661
8184
6b7ef9fc39da nat as names;
wenzelm
parents: 8015
diff changeset
   662
*** Isar ***
6b7ef9fc39da nat as names;
wenzelm
parents: 8015
diff changeset
   663
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   664
* Isar/Pure: local results and corresponding term bindings are now
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   665
subject to Hindley-Milner polymorphism (similar to ML); this
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   666
accommodates incremental type-inference very nicely;
8283
0a319c5746eb * Pure now provides its own version of intro/elim/dest attributes;
wenzelm
parents: 8271
diff changeset
   667
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   668
* Isar/Pure: new derived language element 'obtain' supports
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   669
generalized existence reasoning;
8621
8ba0f90f6f35 * Isar/Pure: local results and corresponding term bindings are now
wenzelm
parents: 8603
diff changeset
   670
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   671
* Isar/Pure: new calculational elements 'moreover' and 'ultimately'
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   672
support accumulation of results, without applying any rules yet;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   673
useful to collect intermediate results without explicit name
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   674
references, and for use with transitivity rules with more than 2
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   675
premises;
8184
6b7ef9fc39da nat as names;
wenzelm
parents: 8015
diff changeset
   676
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   677
* Isar/Pure: scalable support for case-analysis type proofs: new
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   678
'case' language element refers to local contexts symbolically, as
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   679
produced by certain proof methods; internally, case names are attached
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   680
to theorems as "tags";
8440
d66f0f14b1ca * HOL: exhaust_tac on datatypes superceded by new case_tac;
wenzelm
parents: 8425
diff changeset
   681
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   682
* Isar/Pure: theory command 'hide' removes declarations from
9330
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
   683
class/type/const name spaces;
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
   684
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   685
* 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
   686
indicate potential overloading;
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
   687
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   688
* 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
   689
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   690
* 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
   691
"{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
   692
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   693
* Isar/Pure now provides its own version of intro/elim/dest
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   694
attributes; useful for building new logics, but beware of confusion
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   695
with the version in Provers/classical;
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
   696
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   697
* 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
   698
case name 'antecedent';
8440
d66f0f14b1ca * HOL: exhaust_tac on datatypes superceded by new case_tac;
wenzelm
parents: 8425
diff changeset
   699
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   700
* Isar/Pure: removed obsolete 'transfer' attribute (transfer of thms
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   701
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
   702
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   703
* Isar/Pure: theory command 'method_setup' provides a simple interface
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   704
for definining proof methods in ML;
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
   705
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   706
* 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
   707
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
   708
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
   709
replaced "delrule" by "rule del";
8283
0a319c5746eb * Pure now provides its own version of intro/elim/dest attributes;
wenzelm
parents: 8271
diff changeset
   710
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   711
* Isar/Provers: new 'hypsubst' method, plain 'subst' method and
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   712
'symmetric' attribute (the latter supercedes [RS sym]);
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   713
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   714
* Isar/Provers: splitter support (via 'split' attribute and 'simp'
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   715
method modifier); 'simp' method: 'only:' modifier removes loopers as
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   716
well (including splits);
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   717
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   718
* Isar/Provers: Simplifier and Classical methods now support all kind
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   719
of modifiers used in the past, including 'cong', 'iff', etc.
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   720
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   721
* Isar/Provers: added 'fastsimp' and 'clarsimp' methods (combination
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   722
of Simplifier and Classical reasoner);
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   723
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   724
* Isar/HOL: new proof method 'cases' and improved version of 'induct'
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   725
now support named cases; major packages (inductive, datatype, primrec,
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   726
recdef) support case names and properly name parameters;
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
   727
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   728
* Isar/HOL: new transitivity rules for substitution in inequalities --
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   729
monotonicity conditions are extracted to be proven at end of
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   730
calculations;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   731
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   732
* Isar/HOL: removed 'case_split' thm binding, should use 'cases' proof
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   733
method anyway;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   734
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   735
* Isar/HOL: removed old expand_if = split_if; theorems if_splits =
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   736
split_if split_if_asm; datatype package provides theorems foo.splits =
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   737
foo.split foo.split_asm for each datatype;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   738
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   739
* Isar/HOL: tuned inductive package, rename "intrs" to "intros"
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   740
(potential INCOMPATIBILITY), emulation of mk_cases feature for proof
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   741
scripts: new 'inductive_cases' command and 'ind_cases' method; (Note:
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   742
use "(cases (simplified))" method in proper proof texts);
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   743
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   744
* Isar/HOL: added global 'arith_split' attribute for 'arith' method;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   745
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   746
* Isar: names of theorems etc. may be natural numbers as well;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   747
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   748
* Isar: 'pr' command: optional arguments for goals_limit and
9724
2030c5d63741 * 'pr' command: optional argument for ProofContext.prems_limit;
wenzelm
parents: 9709
diff changeset
   749
ProofContext.prems_limit; no longer prints theory contexts, but only
2030c5d63741 * 'pr' command: optional argument for ProofContext.prems_limit;
wenzelm
parents: 9709
diff changeset
   750
proof states;
8487
5f3b0e02ec15 Isar: splitter support; improved diagnostics;
wenzelm
parents: 8440
diff changeset
   751
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   752
* Isar: diagnostic commands 'pr', 'thm', 'prop', 'term', 'typ' admit
8518
wenzelm
parents: 8487
diff changeset
   753
additional print modes to be specified; e.g. "pr(latex)" will print
wenzelm
parents: 8487
diff changeset
   754
proof state according to the Isabelle LaTeX style;
8487
5f3b0e02ec15 Isar: splitter support; improved diagnostics;
wenzelm
parents: 8440
diff changeset
   755
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   756
* Isar: improved support for emulating tactic scripts, including proof
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
   757
methods 'rule_tac' etc., 'cut_tac', 'thin_tac', 'subgoal_tac',
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
   758
'rename_tac', 'rotate_tac', 'tactic', and 'case_tac' / 'induct_tac'
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
   759
(for HOL datatypes);
8534
fdbabfbc3829 improved support for emulating tactic scripts;
wenzelm
parents: 8518
diff changeset
   760
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   761
* Isar: simplified (more robust) goal selection of proof methods: 1st
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   762
goal, all goals, or explicit goal specifier (tactic emulation); thus
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   763
'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
   764
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   765
* 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
   766
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   767
* Isar: removed 'help' command, which hasn't been too helpful anyway;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   768
should instead use individual commands for printing items
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   769
(print_commands, print_methods etc.);
9224
0da360494917 * Isar: removed 'help' command, which hasn't been too helpful anyway;
wenzelm
parents: 9198
diff changeset
   770
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   771
* Isar: added 'nothing' --- the empty list of theorems;
9239
b31c2132176a * added 'nothing' --- the empty list of theorems;
wenzelm
parents: 9229
diff changeset
   772
8184
6b7ef9fc39da nat as names;
wenzelm
parents: 8015
diff changeset
   773
8014
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
   774
*** HOL ***
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
   775
10080
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
   776
* HOL/MicroJava: formalization of a fragment of Java, together with a
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
   777
corresponding virtual machine and a specification of its bytecode
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
   778
verifier and a lightweight bytecode verifier, including proofs of
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
   779
type-safety; by Gerwin Klein, Tobias Nipkow, David von Oheimb, and
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
   780
Cornelia Pusch (see also the homepage of project Bali at
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
   781
http://isabelle.in.tum.de/Bali/);
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
   782
8518
wenzelm
parents: 8487
diff changeset
   783
* HOL/Algebra: new theory of rings and univariate polynomials, by
wenzelm
parents: 8487
diff changeset
   784
Clemens Ballarin;
8014
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
   785
10157
6d3987f3aad9 * HOL/Lattice: fundamental concepts of lattice theory and order structures;
wenzelm
parents: 10137
diff changeset
   786
* HOL/NumberTheory: fundamental Theorem of Arithmetic, Chinese
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   787
Remainder Theorem, Fermat/Euler Theorem, Wilson's Theorem, by Thomas M
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   788
Rasmussen;
8570
63d4f3ea2e70 HOL/ex/Multiquote;
wenzelm
parents: 8566
diff changeset
   789
10157
6d3987f3aad9 * HOL/Lattice: fundamental concepts of lattice theory and order structures;
wenzelm
parents: 10137
diff changeset
   790
* 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
   791
structures, including duals, properties of bounds versus algebraic
6d3987f3aad9 * HOL/Lattice: fundamental concepts of lattice theory and order structures;
wenzelm
parents: 10137
diff changeset
   792
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
   793
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
   794
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
   795
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
   796
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   797
* HOL/Prolog: a (bare-bones) implementation of Lambda-Prolog, by David
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   798
von Oheimb;
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
   799
10164
c240747082aa * HOL/IMPP: extension of IMP with local variables and mutually
wenzelm
parents: 10157
diff changeset
   800
* 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
   801
recursive procedures, by David von Oheimb;
c240747082aa * HOL/IMPP: extension of IMP with local variables and mutually
wenzelm
parents: 10157
diff changeset
   802
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   803
* HOL/Lambda: converted into new-style theory and document;
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
   804
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   805
* HOL/ex/Multiquote: example of multiple nested quotations and
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   806
anti-quotations -- basically a generalized version of de-Bruijn
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   807
representation; very useful in avoiding lifting of operations;
8848
wenzelm
parents: 8832
diff changeset
   808
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
   809
* HOL/record: added general record equality rule to simpset; fixed
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
   810
select-update simplification procedure to handle extended records as
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
   811
well; admit "r" as field name;
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
   812
8967
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
   813
* HOL: 0 is now overloaded over the new sort "zero", allowing its use with
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
   814
other numeric types and also as the identity of groups, rings, etc.;
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
   815
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
   816
* HOL: new axclass plus_ac0 for addition with the AC-laws and 0 as identity.
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
   817
Types nat and int belong to this axclass;
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
   818
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   819
* HOL: greatly improved simplification involving numerals of type nat, int, real:
8788
518a5450ab6d simprocs
paulson
parents: 8736
diff changeset
   820
   (i + #8 + j) = Suc k simplifies to  #7 + (i + j) = k
8832
bcceda950cd0 more details
paulson
parents: 8788
diff changeset
   821
   i*j + k + j*#3*i     simplifies to  #4*(i*j) + k
bcceda950cd0 more details
paulson
parents: 8788
diff changeset
   822
  two terms #m*u and #n*u are replaced by #(m+n)*u
bcceda950cd0 more details
paulson
parents: 8788
diff changeset
   823
    (where #m, #n and u can implicitly be 1; this is simproc combine_numerals)
bcceda950cd0 more details
paulson
parents: 8788
diff changeset
   824
  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
   825
    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
   826
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   827
* 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
   828
powerful prover for predicate logic but knows nothing of clasets; see
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   829
ex/mesontest.ML and ex/mesontest2.ML for example applications;
9835
543d23cd1259 meson_tac
paulson
parents: 9814
diff changeset
   830
8848
wenzelm
parents: 8832
diff changeset
   831
* 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
   832
"exhaust_tac" on datatypes; INCOMPATIBILITY: exhaust_tac no longer
8518
wenzelm
parents: 8487
diff changeset
   833
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
   834
8848
wenzelm
parents: 8832
diff changeset
   835
* HOL: simplification no longer dives into case-expressions: only the
10129
a62b275ac0f7 improved t.weak_case_cong text;
wenzelm
parents: 10103
diff changeset
   836
selector expression is simplified, but not the remaining arms; to
a62b275ac0f7 improved t.weak_case_cong text;
wenzelm
parents: 10103
diff changeset
   837
enable full simplification of case-expressions for datatype t, you may
a62b275ac0f7 improved t.weak_case_cong text;
wenzelm
parents: 10103
diff changeset
   838
remove t.weak_case_cong from the simpset, either globally (Delcongs
a62b275ac0f7 improved t.weak_case_cong text;
wenzelm
parents: 10103
diff changeset
   839
[thm"t.weak_case_cong"];) or locally (delcongs [...]).
8603
805910de7be0 *** empty log message ***
nipkow
parents: 8570
diff changeset
   840
8848
wenzelm
parents: 8832
diff changeset
   841
* HOL/recdef: the recursion equations generated by 'recdef' for
wenzelm
parents: 8832
diff changeset
   842
function 'f' are now called f.simps instead of f.rules; if all
wenzelm
parents: 8832
diff changeset
   843
termination conditions are proved automatically, these simplification
wenzelm
parents: 8832
diff changeset
   844
rules are added to the simpset, as in primrec; rules may be named
wenzelm
parents: 8832
diff changeset
   845
individually as well, resulting in a separate list of theorems for
wenzelm
parents: 8832
diff changeset
   846
each equation;
wenzelm
parents: 8832
diff changeset
   847
9489
aa757b35b129 * blast(_tac) now handles actual object-logic rules as assumptions;
wenzelm
parents: 9457
diff changeset
   848
* 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
   849
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
   850
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
   851
invariant proof rule for while is applied.
9457
966974a7a5b3 * HOL/While
nipkow
parents: 9437
diff changeset
   852
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   853
* HOL: new (overloaded) notation for the set of elements below/above
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   854
some element: {..u}, {..u(}, {l..}, {)l..}. See theory SetInterval.
8925
f4599af94b83 SetInterval
nipkow
parents: 8921
diff changeset
   855
8848
wenzelm
parents: 8832
diff changeset
   856
* HOL: theorems impI, allI, ballI bound as "strip";
wenzelm
parents: 8832
diff changeset
   857
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   858
* HOL: new tactic induct_thm_tac: thm -> string -> int -> tactic
9746
64b803edef39 *** empty log message ***
nipkow
parents: 9741
diff changeset
   859
induct_tac th "x1 ... xn" expects th to have a conclusion of the form
64b803edef39 *** empty log message ***
nipkow
parents: 9741
diff changeset
   860
P v1 ... vn and abbreviates res_inst_tac [("v1","x1"),...,("vn","xn")] th;
64b803edef39 *** empty log message ***
nipkow
parents: 9741
diff changeset
   861
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   862
* HOL/Real: "rabs" replaced by overloaded "abs" function;
9737
7aae235675dc *** empty log message ***
nipkow
parents: 9724
diff changeset
   863
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   864
* 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
   865
main HOL, but was unused);
8626
nipkow
parents: 8621
diff changeset
   866
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   867
* 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
   868
"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
   869
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   870
* HOL: tuned AST representation of nested pairs, avoiding bogus output
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   871
in case of overlap with user translations (e.g. judgements over
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   872
tuples); (note that the underlying logical represenation is still
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   873
bogus);
9349
d43669fb423d * tuned AST representation of nested pairs, avoiding bogus output in
wenzelm
parents: 9335
diff changeset
   874
8412
65f9089f6f71 cases_tac
nipkow
parents: 8392
diff changeset
   875
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
   876
*** ZF ***
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
   877
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   878
* ZF: simplification automatically cancels common terms in arithmetic
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   879
expressions over nat and int;
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
   880
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   881
* ZF: new treatment of nat to minimize type-checking: all operators
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   882
coerce their operands to a natural number using the function natify,
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   883
making the algebraic laws unconditional;
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
   884
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   885
* 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
   886
using the function intify;
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
   887
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   888
* 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
   889
orderings, including $<=, and monotonicity laws for $+ and $*;
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
   890
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   891
* ZF: new example ZF/ex/NatSum to demonstrate integer arithmetic
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   892
simplification;
9388
0b039a3575eb // change; also moved entry for AddIffs
paulson
parents: 9383
diff changeset
   893
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   894
* 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
   895
to the simplifier and classical reasoner simultaneously;
9388
0b039a3575eb // change; also moved entry for AddIffs
paulson
parents: 9383
diff changeset
   896
0b039a3575eb // change; also moved entry for AddIffs
paulson
parents: 9383
diff changeset
   897
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
   898
*** General ***
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
   899
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   900
* Provers: blast_tac now handles actual object-logic rules as
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   901
assumptions; note that auto_tac uses blast_tac internally as well;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   902
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   903
* Provers: new functions rulify/rulify_no_asm: thm -> thm for turning
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   904
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
   905
9941
fe05af7ec816 renamed atts: rulify to rule_format, elimify to elim_format;
wenzelm
parents: 9937
diff changeset
   906
* 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
   907
explicit make_elim);
fe05af7ec816 renamed atts: rulify to rule_format, elimify to elim_format;
wenzelm
parents: 9937
diff changeset
   908
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   909
* 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
   910
  [| inj ?f;          ?f ?x = ?f ?y; ?x = ?y ==> ?W |] ==> ?W
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   911
use instead the strong form,
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   912
  [| inj ?f; ~ ?W ==> ?f ?x = ?f ?y; ?x = ?y ==> ?W |] ==> ?W
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   913
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
   914
from destruct-rules;
9489
aa757b35b129 * blast(_tac) now handles actual object-logic rules as assumptions;
wenzelm
parents: 9457
diff changeset
   915
9709
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
   916
* Provers: Simplifier.easy_setup provides a fast path to basic
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
   917
Simplifier setup for new object-logics;
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
   918
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
   919
* 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
   920
9709
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
   921
* Pure: improved name spaces: ambiguous output is qualified; support
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
   922
for hiding of names;
8729
094dbd0fad0c * improved name spaces: ambiguous output is qualified; support for
wenzelm
parents: 8705
diff changeset
   923
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   924
* system: smart setup of canonical ML_HOME, ISABELLE_INTERFACE, and
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   925
XSYMBOL_HOME; no longer need to do manual configuration in most
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   926
situations;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   927
9709
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
   928
* 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
   929
option of isabelle and isatool usedir (currently only observed by
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
   930
Poly/ML);
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
   931
9981
01a0c4772c18 system: isatool installfonts may handle X-Symbol fonts as well;
wenzelm
parents: 9971
diff changeset
   932
* 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
   933
useful for remote X11);
01a0c4772c18 system: isatool installfonts may handle X-Symbol fonts as well;
wenzelm
parents: 9971
diff changeset
   934
9709
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
   935
* system: provide TAGS file for Isabelle sources;
9052
7db48fe85b05 provide TAGS file for Isabelle sources;
wenzelm
parents: 9028
diff changeset
   936
9288
06a55195741b infix 'OF' is a version of 'MRS' with more appropriate argument order;
wenzelm
parents: 9239
diff changeset
   937
* 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
   938
order;
06a55195741b infix 'OF' is a version of 'MRS' with more appropriate argument order;
wenzelm
parents: 9239
diff changeset
   939
8994
803533fbb3ec * ML: renamed flags Syntax.trace_norm_ast to Syntax.trace_ast; global
wenzelm
parents: 8991
diff changeset
   940
* 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
   941
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
   942
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   943
* ML: new combinators |>> and |>>> for incremental transformations
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   944
with secondary results (e.g. certain theory extensions):
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   945
9330
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
   946
* 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
   947
overloading (usually false);
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
   948
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   949
* 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
   950
results;
8440
d66f0f14b1ca * HOL: exhaust_tac on datatypes superceded by new case_tac;
wenzelm
parents: 8425
diff changeset
   951
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
   952
8015
wenzelm
parents: 8014
diff changeset
   953
7986
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
   954
New in Isabelle99 (October 1999)
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
   955
--------------------------------
4649
89ad3eb863a1 changed wrapper mechanism of classical reasoner
oheimb
parents: 4575
diff changeset
   956
5931
325300576da7 Finally removing "Compl" from HOL
paulson
parents: 5781
diff changeset
   957
*** Overview of INCOMPATIBILITIES (see below for more details) ***
325300576da7 Finally removing "Compl" from HOL
paulson
parents: 5781
diff changeset
   958
6922
f5c5b81b3f14 integer division
paulson
parents: 6795
diff changeset
   959
* HOL: The THEN and ELSE parts of conditional expressions (if P then x else y)
f5c5b81b3f14 integer division
paulson
parents: 6795
diff changeset
   960
are no longer simplified.  (This allows the simplifier to unfold recursive
f5c5b81b3f14 integer division
paulson
parents: 6795
diff changeset
   961
functional programs.)  To restore the old behaviour, declare
7215
wenzelm
parents: 7204
diff changeset
   962
wenzelm
parents: 7204
diff changeset
   963
    Delcongs [if_weak_cong];
6922
f5c5b81b3f14 integer division
paulson
parents: 6795
diff changeset
   964
6269
wenzelm
parents: 6259
diff changeset
   965
* HOL: Removed the obsolete syntax "Compl A"; use -A for set
wenzelm
parents: 6259
diff changeset
   966
complement;
5931
325300576da7 Finally removing "Compl" from HOL
paulson
parents: 5781
diff changeset
   967
6269
wenzelm
parents: 6259
diff changeset
   968
* HOL: the predicate "inj" is now defined by translation to "inj_on";
6174
paulson
parents: 6157
diff changeset
   969
7847
5a3fa0c4b215 Eliminated mutual_induct_tac.
berghofe
parents: 7805
diff changeset
   970
* HOL/datatype: mutual_induct_tac no longer exists --
5a3fa0c4b215 Eliminated mutual_induct_tac.
berghofe
parents: 7805
diff changeset
   971
  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
   972
6386
e9e8af97f48f HOL/typedef: fixed type inference for representing set;
wenzelm
parents: 6343
diff changeset
   973
* HOL/typedef: fixed type inference for representing set; type
e9e8af97f48f HOL/typedef: fixed type inference for representing set;
wenzelm
parents: 6343
diff changeset
   974
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
   975
6269
wenzelm
parents: 6259
diff changeset
   976
* ZF: The con_defs part of an inductive definition may no longer refer
wenzelm
parents: 6259
diff changeset
   977
to constants declared in the same theory;
6057
395ea7617554 *** empty log message ***
nipkow
parents: 6028
diff changeset
   978
6269
wenzelm
parents: 6259
diff changeset
   979
* HOL, ZF: the function mk_cases, generated by the inductive
wenzelm
parents: 6259
diff changeset
   980
definition package, has lost an argument.  To simplify its result, it
wenzelm
parents: 6259
diff changeset
   981
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
   982
7215
wenzelm
parents: 7204
diff changeset
   983
* HOL/List: the constructors of type list are now Nil and Cons;
wenzelm
parents: 7204
diff changeset
   984
7619
d78b8b103fd9 incompatibility solver
nipkow
parents: 7595
diff changeset
   985
* Simplifier: the type of the infix ML functions
8729
094dbd0fad0c * improved name spaces: ambiguous output is qualified; support for
wenzelm
parents: 8705
diff changeset
   986
        setSSolver addSSolver setSolver addSolver
7619
d78b8b103fd9 incompatibility solver
nipkow
parents: 7595
diff changeset
   987
is now  simpset * solver -> simpset  where `solver' is a new abstract type
d78b8b103fd9 incompatibility solver
nipkow
parents: 7595
diff changeset
   988
for packaging solvers. A solver is created via
8729
094dbd0fad0c * improved name spaces: ambiguous output is qualified; support for
wenzelm
parents: 8705
diff changeset
   989
        mk_solver: string -> (thm list -> int -> tactic) -> solver
7619
d78b8b103fd9 incompatibility solver
nipkow
parents: 7595
diff changeset
   990
where the string argument is only a comment.
6057
395ea7617554 *** empty log message ***
nipkow
parents: 6028
diff changeset
   991
7647
2ceddd91cd0a proper handling of dangling sort hypotheses (at last!);
wenzelm
parents: 7619
diff changeset
   992
6069
a99879bd9f13 if-then-else syntax for ZF
paulson
parents: 6064
diff changeset
   993
*** Proof tools ***
a99879bd9f13 if-then-else syntax for ZF
paulson
parents: 6064
diff changeset
   994
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
   995
* Provers/Arith/fast_lin_arith.ML contains a functor for creating a
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
   996
decision procedure for linear arithmetic. Currently it is used for
7593
wenzelm
parents: 7492
diff changeset
   997
types `nat', `int', and `real' in HOL (see below); it can, should and
wenzelm
parents: 7492
diff changeset
   998
will be instantiated for other types and logics as well.
6069
a99879bd9f13 if-then-else syntax for ZF
paulson
parents: 6064
diff changeset
   999
7324
6cb0d0202298 simplifier flex heads.
nipkow
parents: 7320
diff changeset
  1000
* The simplifier now accepts rewrite rules with flexible heads, eg
6cb0d0202298 simplifier flex heads.
nipkow
parents: 7320
diff changeset
  1001
     hom ?f ==> ?f(?x+?y) = ?f ?x + ?f ?y
6cb0d0202298 simplifier flex heads.
nipkow
parents: 7320
diff changeset
  1002
  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
  1003
  matching.
6069
a99879bd9f13 if-then-else syntax for ZF
paulson
parents: 6064
diff changeset
  1004
7593
wenzelm
parents: 7492
diff changeset
  1005
6014
bfd4923b0957 locales
paulson
parents: 5973
diff changeset
  1006
*** General ***
bfd4923b0957 locales
paulson
parents: 5973
diff changeset
  1007
7986
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1008
* New Isabelle/Isar subsystem provides an alternative to traditional
7215
wenzelm
parents: 7204
diff changeset
  1009
tactical theorem proving; together with the ProofGeneral/isar user
wenzelm
parents: 7204
diff changeset
  1010
interface it offers an interactive environment for developing human
wenzelm
parents: 7204
diff changeset
  1011
readable proof documents (Isar == Intelligible semi-automated
7886
8fa551e22e52 the settings environment is now statically scoped;
wenzelm
parents: 7863
diff changeset
  1012
reasoning); for further information see isatool doc isar-ref,
7986
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1013
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
  1014
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1015
* improved and simplified presentation of theories: better HTML markup
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1016
(including colors), graph views in several sizes; isatool usedir now
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1017
provides a proper interface for user theories (via -P option); actual
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1018
document preparation based on (PDF)LaTeX is available as well (for
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1019
new-style theories only); see isatool doc system for more information;
7215
wenzelm
parents: 7204
diff changeset
  1020
7252
d3ed595dd772 replaced 'ProofGeneral' by 'Proof General';
wenzelm
parents: 7238
diff changeset
  1021
* native support for Proof General, both for classic Isabelle and
7986
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1022
Isabelle/Isar;
7215
wenzelm
parents: 7204
diff changeset
  1023
7791
wenzelm
parents: 7780
diff changeset
  1024
* ML function thm_deps visualizes dependencies of theorems and lemmas,
wenzelm
parents: 7780
diff changeset
  1025
using the graph browser tool;
wenzelm
parents: 7780
diff changeset
  1026
6751
0e346c73828c Isabelle manuals now also available as PDF;
wenzelm
parents: 6671
diff changeset
  1027
* Isabelle manuals now also available as PDF;
0e346c73828c Isabelle manuals now also available as PDF;
wenzelm
parents: 6671
diff changeset
  1028
6449
d031cb5ea2fc loadpath replaced;
wenzelm
parents: 6420
diff changeset
  1029
* theory loader rewritten from scratch (may not be fully
d031cb5ea2fc loadpath replaced;
wenzelm
parents: 6420
diff changeset
  1030
bug-compatible); old loadpath variable has been replaced by show_path,
6671
wenzelm
parents: 6563
diff changeset
  1031
add_path, del_path, reset_path functions; new operations such as
7593
wenzelm
parents: 7492
diff changeset
  1032
update_thy, touch_thy, remove_thy, use/update_thy_only (see also
wenzelm
parents: 7492
diff changeset
  1033
isatool doc ref);
6449
d031cb5ea2fc loadpath replaced;
wenzelm
parents: 6420
diff changeset
  1034
7215
wenzelm
parents: 7204
diff changeset
  1035
* improved isatool install: option -k creates KDE application icon,
wenzelm
parents: 7204
diff changeset
  1036
option -p DIR installs standalone binaries;
wenzelm
parents: 7204
diff changeset
  1037
wenzelm
parents: 7204
diff changeset
  1038
* added ML_PLATFORM setting (useful for cross-platform installations);
wenzelm
parents: 7204
diff changeset
  1039
more robust handling of platform specific ML images for SML/NJ;
wenzelm
parents: 7204
diff changeset
  1040
7886
8fa551e22e52 the settings environment is now statically scoped;
wenzelm
parents: 7863
diff changeset
  1041
* the settings environment is now statically scoped, i.e. it is never
7986
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1042
created again in sub-processes invoked from isabelle, isatool, or
7886
8fa551e22e52 the settings environment is now statically scoped;
wenzelm
parents: 7863
diff changeset
  1043
Isabelle;
8fa551e22e52 the settings environment is now statically scoped;
wenzelm
parents: 7863
diff changeset
  1044
7215
wenzelm
parents: 7204
diff changeset
  1045
* path element specification '~~' refers to '$ISABELLE_HOME';
wenzelm
parents: 7204
diff changeset
  1046
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1047
* in locales, the "assumes" and "defines" parts may be omitted if
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1048
empty;
5973
040f6d2af50d removed prs / prs_fn;
wenzelm
parents: 5931
diff changeset
  1049
6269
wenzelm
parents: 6259
diff changeset
  1050
* new print_mode "xsymbols" for extended symbol support (e.g. genuine
wenzelm
parents: 6259
diff changeset
  1051
long arrows);
6259
488bdc1bd11a path element specification '~~' refers to '$ISABELLE_HOME';
wenzelm
parents: 6174
diff changeset
  1052
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1053
* new print_mode "HTML";
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1054
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1055
* new flag show_tags controls display of tags of theorems (which are
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1056
basically just comments that may be attached by some tools);
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1057
6461
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1058
* Isamode 2.6 requires patch to accomodate change of Isabelle font
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1059
mode and goal output format:
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1060
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1061
diff -r Isamode-2.6/elisp/isa-load.el Isamode/elisp/isa-load.el
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1062
244c244
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1063
<       (list (isa-getenv "ISABELLE") "-msymbols" logic-name)
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1064
---
6533
wenzelm
parents: 6482
diff changeset
  1065
>       (list (isa-getenv "ISABELLE") "-misabelle_font" "-msymbols" logic-name)
6461
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1066
diff -r Isabelle-2.6/elisp/isa-proofstate.el Isamode/elisp/isa-proofstate.el
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1067
181c181
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1068
< (defconst proofstate-proofstart-regexp "^Level [0-9]+$"
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1069
---
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1070
> (defconst proofstate-proofstart-regexp "^Level [0-9]+"
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1071
7450
e329ca03fd00 added bind_thms;
wenzelm
parents: 7444
diff changeset
  1072
* function bind_thms stores lists of theorems (cf. bind_thm);
e329ca03fd00 added bind_thms;
wenzelm
parents: 7444
diff changeset
  1073
7593
wenzelm
parents: 7492
diff changeset
  1074
* new shorthand tactics ftac, eatac, datac, fatac;
wenzelm
parents: 7492
diff changeset
  1075
wenzelm
parents: 7492
diff changeset
  1076
* qed (and friends) now accept "" as result name; in that case the
7986
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1077
theorem is not stored, but proper checks and presentation of the
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1078
result still apply;
7593
wenzelm
parents: 7492
diff changeset
  1079
7805
0ae9ddc36fe0 theorem database now also indexes constants "Trueprop", "all",
wenzelm
parents: 7791
diff changeset
  1080
* theorem database now also indexes constants "Trueprop", "all",
0ae9ddc36fe0 theorem database now also indexes constants "Trueprop", "all",
wenzelm
parents: 7791
diff changeset
  1081
"==>", "=="; thus thms_containing, findI etc. may retrieve more rules;
0ae9ddc36fe0 theorem database now also indexes constants "Trueprop", "all",
wenzelm
parents: 7791
diff changeset
  1082
6028
1bfd52528bde *** empty log message ***
oheimb
parents: 6014
diff changeset
  1083
6057
395ea7617554 *** empty log message ***
nipkow
parents: 6028
diff changeset
  1084
*** HOL ***
395ea7617554 *** empty log message ***
nipkow
parents: 6028
diff changeset
  1085
7215
wenzelm
parents: 7204
diff changeset
  1086
** HOL arithmetic **
wenzelm
parents: 7204
diff changeset
  1087
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1088
* There are now decision procedures for linear arithmetic over nat and
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1089
int:
6131
2d9e609abcdb More Arith.
nipkow
parents: 6070
diff changeset
  1090
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1091
1. arith_tac copes with arbitrary formulae involving `=', `<', `<=',
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1092
`+', `-', `Suc', `min', `max' and numerical constants; other subterms
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1093
are treated as atomic; subformulae not involving type `nat' or `int'
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1094
are ignored; quantified subformulae are ignored unless they are
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1095
positive universal or negative existential. The tactic has to be
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1096
invoked by hand and can be a little bit slow. In particular, the
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1097
running time is exponential in the number of occurrences of `min' and
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1098
`max', and `-' on `nat'.
6131
2d9e609abcdb More Arith.
nipkow
parents: 6070
diff changeset
  1099
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1100
2. fast_arith_tac is a cut-down version of arith_tac: it only takes
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1101
(negated) (in)equalities among the premises and the conclusion into
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1102
account (i.e. no compound formulae) and does not know about `min' and
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1103
`max', and `-' on `nat'. It is fast and is used automatically by the
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1104
simplifier.
6131
2d9e609abcdb More Arith.
nipkow
parents: 6070
diff changeset
  1105
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1106
NB: At the moment, these decision procedures do not cope with mixed
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1107
nat/int formulae where the two parts interact, such as `m < n ==>
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1108
int(m) < int(n)'.
6028
1bfd52528bde *** empty log message ***
oheimb
parents: 6014
diff changeset
  1109
7215
wenzelm
parents: 7204
diff changeset
  1110
* HOL/Numeral provides a generic theory of numerals (encoded
7313
300487ddfba9 real numerals;
wenzelm
parents: 7300
diff changeset
  1111
efficiently as bit strings); setup for types nat/int/real is in place;
7215
wenzelm
parents: 7204
diff changeset
  1112
INCOMPATIBILITY: since numeral syntax is now polymorphic, rather than
wenzelm
parents: 7204
diff changeset
  1113
int, existing theories and proof scripts may require a few additional
wenzelm
parents: 7204
diff changeset
  1114
type constraints;
wenzelm
parents: 7204
diff changeset
  1115
wenzelm
parents: 7204
diff changeset
  1116
* integer division and remainder can now be performed on constant
wenzelm
parents: 7204
diff changeset
  1117
arguments;
7157
paulson
parents: 7125
diff changeset
  1118
7215
wenzelm
parents: 7204
diff changeset
  1119
* many properties of integer multiplication, division and remainder
wenzelm
parents: 7204
diff changeset
  1120
are now available;
6922
f5c5b81b3f14 integer division
paulson
parents: 6795
diff changeset
  1121
7287
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1122
* An interface to the Stanford Validity Checker (SVC) is available through the
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1123
tactic svc_tac.  Propositional tautologies and theorems of linear arithmetic
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1124
are proved automatically.  SVC must be installed separately, and its results
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1125
must be TAKEN ON TRUST (Isabelle does not check the proofs, but tags any
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1126
invocation of the underlying oracle).  For SVC see
7444
ee17ad649c26 new SVC url
paulson
parents: 7420
diff changeset
  1127
  http://verify.stanford.edu/SVC
6922
f5c5b81b3f14 integer division
paulson
parents: 6795
diff changeset
  1128
7125
df7cf6e85501 HOL-Real target now builds an actual image;
wenzelm
parents: 7113
diff changeset
  1129
* IsaMakefile: the HOL-Real target now builds an actual image;
df7cf6e85501 HOL-Real target now builds an actual image;
wenzelm
parents: 7113
diff changeset
  1130
7215
wenzelm
parents: 7204
diff changeset
  1131
wenzelm
parents: 7204
diff changeset
  1132
** HOL misc **
wenzelm
parents: 7204
diff changeset
  1133
7595
5f5d575ddac3 * HOL/Real/HahnBanach: the Hahn-Banach theorem for real vector spaces
wenzelm
parents: 7593
diff changeset
  1134
* 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
  1135
(in Isabelle/Isar) -- by Gertrud Bauer;
5f5d575ddac3 * HOL/Real/HahnBanach: the Hahn-Banach theorem for real vector spaces
wenzelm
parents: 7593
diff changeset
  1136
7691
b7e8277fa088 added BVC;
wenzelm
parents: 7647
diff changeset
  1137
* HOL/BCV: generic model of bytecode verification, i.e. data-flow
b7e8277fa088 added BVC;
wenzelm
parents: 7647
diff changeset
  1138
analysis for assembly languages with subtypes;
b7e8277fa088 added BVC;
wenzelm
parents: 7647
diff changeset
  1139
6278
37b76155a49e Symbol.output subject to print mode;
wenzelm
parents: 6269
diff changeset
  1140
* HOL/TLA (Lamport's Temporal Logic of Actions): major reorganization
37b76155a49e Symbol.output subject to print mode;
wenzelm
parents: 6269
diff changeset
  1141
-- avoids syntactic ambiguities and treats state, transition, and
37b76155a49e Symbol.output subject to print mode;
wenzelm
parents: 6269
diff changeset
  1142
temporal levels more uniformly; introduces INCOMPATIBILITIES due to
37b76155a49e Symbol.output subject to print mode;
wenzelm
parents: 6269
diff changeset
  1143
changed syntax and (many) tactics;
37b76155a49e Symbol.output subject to print mode;
wenzelm
parents: 6269
diff changeset
  1144
7791
wenzelm
parents: 7780
diff changeset
  1145
* HOL/inductive: Now also handles more general introduction rules such
wenzelm
parents: 7780
diff changeset
  1146
  as "ALL y. (y, x) : r --> y : acc r ==> x : acc r"; monotonicity
wenzelm
parents: 7780
diff changeset
  1147
  theorems are now maintained within the theory (maintained via the
wenzelm
parents: 7780
diff changeset
  1148
  "mono" attribute);
7780
099742c562aa Documented changes to HOL/inductive and function thm_deps.
berghofe
parents: 7691
diff changeset
  1149
7238
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1150
* HOL/datatype: Now also handles arbitrarily branching datatypes
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1151
  (using function types) such as
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1152
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1153
  datatype 'a tree = Atom 'a | Branch "nat => 'a tree"
7047
d103b875ef1d Datatype package now handles arbitrarily branching datatypes.
berghofe
parents: 6925
diff changeset
  1154
7326
a1555491a966 record_simproc;
wenzelm
parents: 7324
diff changeset
  1155
* HOL/record: record_simproc (part of the default simpset) takes care
a1555491a966 record_simproc;
wenzelm
parents: 7324
diff changeset
  1156
of selectors applied to updated records; record_split_tac is no longer
7327
wenzelm
parents: 7326
diff changeset
  1157
part of the default claset; update_defs may now be removed from the
wenzelm
parents: 7326
diff changeset
  1158
simpset in many cases; COMPATIBILITY: old behavior achieved by
7326
a1555491a966 record_simproc;
wenzelm
parents: 7324
diff changeset
  1159
a1555491a966 record_simproc;
wenzelm
parents: 7324
diff changeset
  1160
  claset_ref () := claset() addSWrapper record_split_wrapper;
a1555491a966 record_simproc;
wenzelm
parents: 7324
diff changeset
  1161
  Delsimprocs [record_simproc]
a1555491a966 record_simproc;
wenzelm
parents: 7324
diff changeset
  1162
6386
e9e8af97f48f HOL/typedef: fixed type inference for representing set;
wenzelm
parents: 6343
diff changeset
  1163
* HOL/typedef: fixed type inference for representing set; type
e9e8af97f48f HOL/typedef: fixed type inference for representing set;
wenzelm
parents: 6343
diff changeset
  1164
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
  1165
7287
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1166
* HOL/recdef (TFL): 'congs' syntax now expects comma separated list of theorem
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1167
names rather than an ML expression;
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1168
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1169
* HOL/defer_recdef (TFL): like recdef but the well-founded relation can be
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1170
supplied later.  Program schemes can be defined, such as
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1171
    "While B C s = (if B s then While B C (C s) else s)"
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1172
where the well-founded relation can be chosen after B and C have been given.
6563
wenzelm
parents: 6533
diff changeset
  1173
7215
wenzelm
parents: 7204
diff changeset
  1174
* HOL/List: the constructors of type list are now Nil and Cons;
wenzelm
parents: 7204
diff changeset
  1175
INCOMPATIBILITY: while [] and infix # syntax is still there, of
wenzelm
parents: 7204
diff changeset
  1176
course, ML tools referring to List.list.op # etc. have to be adapted;
wenzelm
parents: 7204
diff changeset
  1177
7238
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1178
* HOL_quantifiers flag superseded by "HOL" print mode, which is
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1179
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
  1180
the original Gordon/HOL-style output;
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1181
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1182
* 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
  1183
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
  1184
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1185
* HOL basic syntax simplified (more orthogonal): all variants of
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1186
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
  1187
Eps operator is provided as well: "SOME x. P[x]";
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1188
7320
e89fd7d0a624 Moved sum_case to theory HOL/Datatype.
berghofe
parents: 7313
diff changeset
  1189
* 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
  1190
7280
wenzelm
parents: 7261
diff changeset
  1191
* HOL/Univ.thy: infix syntax <*>, <+>, <**>, <+> eliminated and made
wenzelm
parents: 7261
diff changeset
  1192
thus available for user theories;
wenzelm
parents: 7261
diff changeset
  1193
7300
8439bf404c28 * HOLCF/IOA/Sequents: renamed 'Cons' to 'Consq' to avoid clash with HOL/List;
wenzelm
parents: 7287
diff changeset
  1194
* 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
  1195
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
  1196
time;
8439bf404c28 * HOLCF/IOA/Sequents: renamed 'Cons' to 'Consq' to avoid clash with HOL/List;
wenzelm
parents: 7287
diff changeset
  1197
7986
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1198
* HOL: new tactic smp_tac: int -> int -> tactic, which applies spec
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1199
several times and then mp;
7492
44b333fb5b80 *** empty log message ***
oheimb
parents: 7450
diff changeset
  1200
7215
wenzelm
parents: 7204
diff changeset
  1201
7113
paulson
parents: 7047
diff changeset
  1202
*** LK ***
paulson
parents: 7047
diff changeset
  1203
7215
wenzelm
parents: 7204
diff changeset
  1204
* the notation <<...>> is now available as a notation for sequences of
wenzelm
parents: 7204
diff changeset
  1205
formulas;
7113
paulson
parents: 7047
diff changeset
  1206
paulson
parents: 7047
diff changeset
  1207
* the simplifier is now installed
paulson
parents: 7047
diff changeset
  1208
8729
094dbd0fad0c * improved name spaces: ambiguous output is qualified; support for
wenzelm
parents: 8705
diff changeset
  1209
* the axiom system has been generalized (thanks to Soren Heilmann)
7113
paulson
parents: 7047
diff changeset
  1210
paulson
parents: 7047
diff changeset
  1211
* the classical reasoner now has a default rule database
paulson
parents: 7047
diff changeset
  1212
paulson
parents: 7047
diff changeset
  1213
6064
0786b5afd8ee primrec, induct_tac
paulson
parents: 6063
diff changeset
  1214
*** ZF ***
0786b5afd8ee primrec, induct_tac
paulson
parents: 6063
diff changeset
  1215
0786b5afd8ee primrec, induct_tac
paulson
parents: 6063
diff changeset
  1216
* new primrec section allows primitive recursive functions to be given
6269
wenzelm
parents: 6259
diff changeset
  1217
directly (as in HOL) over datatypes and the natural numbers;
6064
0786b5afd8ee primrec, induct_tac
paulson
parents: 6063
diff changeset
  1218
6269
wenzelm
parents: 6259
diff changeset
  1219
* new tactics induct_tac and exhaust_tac for induction (or case
wenzelm
parents: 6259
diff changeset
  1220
analysis) over datatypes and the natural numbers;
6064
0786b5afd8ee primrec, induct_tac
paulson
parents: 6063
diff changeset
  1221
0786b5afd8ee primrec, induct_tac
paulson
parents: 6063
diff changeset
  1222
* the datatype declaration of type T now defines the recursor T_rec;
0786b5afd8ee primrec, induct_tac
paulson
parents: 6063
diff changeset
  1223
6141
a6922171b396 removal of the (thm list) argument of mk_cases
paulson
parents: 6131
diff changeset
  1224
* simplification automatically does freeness reasoning for datatype
6269
wenzelm
parents: 6259
diff changeset
  1225
constructors;
6141
a6922171b396 removal of the (thm list) argument of mk_cases
paulson
parents: 6131
diff changeset
  1226
6269
wenzelm
parents: 6259
diff changeset
  1227
* automatic type-inference, with AddTCs command to insert new
wenzelm
parents: 6259
diff changeset
  1228
type-checking rules;
6155
e387d188d0ca ZF typechecking
paulson
parents: 6141
diff changeset
  1229
6269
wenzelm
parents: 6259
diff changeset
  1230
* datatype introduction rules are now added as Safe Introduction rules
wenzelm
parents: 6259
diff changeset
  1231
to the claset;
6155
e387d188d0ca ZF typechecking
paulson
parents: 6141
diff changeset
  1232
6269
wenzelm
parents: 6259
diff changeset
  1233
* the syntax "if P then x else y" is now available in addition to
wenzelm
parents: 6259
diff changeset
  1234
if(P,x,y);
wenzelm
parents: 6259
diff changeset
  1235
6069
a99879bd9f13 if-then-else syntax for ZF
paulson
parents: 6064
diff changeset
  1236
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1237
*** Internal programming interfaces ***
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1238
7919
35c18affc1d8 tuned simplifier trace output; new flag debug_simp
wenzelm
parents: 7886
diff changeset
  1239
* tuned simplifier trace output; new flag debug_simp;
35c18affc1d8 tuned simplifier trace output; new flag debug_simp
wenzelm
parents: 7886
diff changeset
  1240
7420
cba45c114f3b structures Vartab / Termtab (instances of TableFun);
wenzelm
parents: 7327
diff changeset
  1241
* structures Vartab / Termtab (instances of TableFun) offer efficient
cba45c114f3b structures Vartab / Termtab (instances of TableFun);
wenzelm
parents: 7327
diff changeset
  1242
tables indexed by indexname_ord / term_ord (compatible with aconv);
cba45c114f3b structures Vartab / Termtab (instances of TableFun);
wenzelm
parents: 7327
diff changeset
  1243
6386
e9e8af97f48f HOL/typedef: fixed type inference for representing set;
wenzelm
parents: 6343
diff changeset
  1244
* AxClass.axclass_tac lost the theory argument;
e9e8af97f48f HOL/typedef: fixed type inference for representing set;
wenzelm
parents: 6343
diff changeset
  1245
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1246
* tuned current_goals_markers semantics: begin / end goal avoids
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1247
printing empty lines;
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1248
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1249
* removed prs and prs_fn hook, which was broken because it did not
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1250
include \n in its semantics, forcing writeln to add one
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1251
uncoditionally; replaced prs_fn by writeln_fn; consider std_output:
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1252
string -> unit if you really want to output text without newline;
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1253
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1254
* Symbol.output subject to print mode; INCOMPATIBILITY: defaults to
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1255
plain output, interface builders may have to enable 'isabelle_font'
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1256
mode to get Isabelle font glyphs as before;
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1257
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1258
* refined token_translation interface; INCOMPATIBILITY: output length
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1259
now of type real instead of int;
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1260
7196
c8d1002060e8 theory loader actions;
wenzelm
parents: 7157
diff changeset
  1261
* theory loader actions may be traced via new ThyInfo.add_hook
c8d1002060e8 theory loader actions;
wenzelm
parents: 7157
diff changeset
  1262
interface (see src/Pure/Thy/thy_info.ML); example application: keep
c8d1002060e8 theory loader actions;
wenzelm
parents: 7157
diff changeset
  1263
your own database of information attached to *whole* theories -- as
c8d1002060e8 theory loader actions;
wenzelm
parents: 7157
diff changeset
  1264
opposed to intra-theory data slots offered via TheoryDataFun;
c8d1002060e8 theory loader actions;
wenzelm
parents: 7157
diff changeset
  1265
7647
2ceddd91cd0a proper handling of dangling sort hypotheses (at last!);
wenzelm
parents: 7619
diff changeset
  1266
* proper handling of dangling sort hypotheses (at last!);
2ceddd91cd0a proper handling of dangling sort hypotheses (at last!);
wenzelm
parents: 7619
diff changeset
  1267
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
  1268
extra sort hypotheses that can be witnessed from the type signature;
7986
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1269
the force_strip_shyps flag is gone, any remaining shyps are simply
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1270
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
  1271
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1272
6064
0786b5afd8ee primrec, induct_tac
paulson
parents: 6063
diff changeset
  1273
5781
d37380544c39 tuned current_goals_markers;
wenzelm
parents: 5731
diff changeset
  1274
New in Isabelle98-1 (October 1998)
d37380544c39 tuned current_goals_markers;
wenzelm
parents: 5731
diff changeset
  1275
----------------------------------
d37380544c39 tuned current_goals_markers;
wenzelm
parents: 5731
diff changeset
  1276
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  1277
*** Overview of INCOMPATIBILITIES (see below for more details) ***
4842
0afcae75b34a *** empty log message ***
wenzelm
parents: 4838
diff changeset
  1278
5726
wenzelm
parents: 5722
diff changeset
  1279
* several changes of automated proof tools;
5373
wenzelm
parents: 5363
diff changeset
  1280
5726
wenzelm
parents: 5722
diff changeset
  1281
* HOL: major changes to the inductive and datatype packages, including
wenzelm
parents: 5722
diff changeset
  1282
some minor incompatibilities of theory syntax;
5214
75c6392d1274 Adapted to new datatype package.
berghofe
parents: 5207
diff changeset
  1283
5726
wenzelm
parents: 5722
diff changeset
  1284
* HOL: renamed r^-1 to 'converse' from 'inverse'; 'inj_onto' is now
5217
wenzelm
parents: 5214
diff changeset
  1285
called `inj_on';
5160
1ff6679144b9 ZF: Main, Update
paulson
parents: 5145
diff changeset
  1286
5275
de5d5e5eb692 *** empty log message ***
nipkow
parents: 5267
diff changeset
  1287
* HOL: removed duplicate thms in Arith:
de5d5e5eb692 *** empty log message ***
nipkow
parents: 5267
diff changeset
  1288
  less_imp_add_less  should be replaced by  trans_less_add1
de5d5e5eb692 *** empty log message ***
nipkow
parents: 5267
diff changeset
  1289
  le_imp_add_le      should be replaced by  trans_le_add1
5160
1ff6679144b9 ZF: Main, Update
paulson
parents: 5145
diff changeset
  1290
5726
wenzelm
parents: 5722
diff changeset
  1291
* HOL: unary minus is now overloaded (new type constraints may be
wenzelm
parents: 5722
diff changeset
  1292
required);
5490
85855f65d0c6 From Compl(A) to -A
paulson
parents: 5475
diff changeset
  1293
5726
wenzelm
parents: 5722
diff changeset
  1294
* HOL and ZF: unary minus for integers is now #- instead of #~.  In
wenzelm
parents: 5722
diff changeset
  1295
ZF, expressions such as n#-1 must be changed to n#- 1, since #-1 is
wenzelm
parents: 5722
diff changeset
  1296
now taken as an integer constant.
5541
f8fb27db4bcd unary minus
paulson
parents: 5526
diff changeset
  1297
5726
wenzelm
parents: 5722
diff changeset
  1298
* Pure: ML function 'theory_of' renamed to 'theory';
5397
034ed25535b9 * Pure: ML function 'theory_of' replaced by 'theory';
wenzelm
parents: 5373
diff changeset
  1299
5363
0cf15843b82f isatool install;
wenzelm
parents: 5332
diff changeset
  1300
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  1301
*** Proof tools ***
4880
312115d20c45 *** empty log message ***
nipkow
parents: 4879
diff changeset
  1302
5657
1a6c9c6a3f8e 2. The simplifier now knows a little bit about nat-arithmetic.
nipkow
parents: 5651
diff changeset
  1303
* Simplifier:
1a6c9c6a3f8e 2. The simplifier now knows a little bit about nat-arithmetic.
nipkow
parents: 5651
diff changeset
  1304
  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
  1305
     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
  1306
        simplify.
1a6c9c6a3f8e 2. The simplifier now knows a little bit about nat-arithmetic.
nipkow
parents: 5651
diff changeset
  1307
     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
  1308
        rotate premises to achieve further simplification.
1a6c9c6a3f8e 2. The simplifier now knows a little bit about nat-arithmetic.
nipkow
parents: 5651
diff changeset
  1309
     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
  1310
     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
  1311
  2. The simplifier now knows a little bit about nat-arithmetic.
4880
312115d20c45 *** empty log message ***
nipkow
parents: 4879
diff changeset
  1312
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  1313
* Classical reasoner: wrapper mechanism for the classical reasoner now
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  1314
allows for selected deletion of wrappers, by introduction of names for
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  1315
wrapper functionals.  This implies that addbefore, addSbefore,
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  1316
addaltern, and addSaltern now take a pair (name, tactic) as argument,
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  1317
and that adding two tactics with the same name overwrites the first
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  1318
one (emitting a warning).
4824
df8fc4626a9e *** empty log message ***
oheimb
parents: 4806
diff changeset
  1319
  type wrapper = (int -> tactic) -> (int -> tactic)
4649
89ad3eb863a1 changed wrapper mechanism of classical reasoner
oheimb
parents: 4575
diff changeset
  1320
  setWrapper, setSWrapper, compWrapper and compSWrapper are replaced by
4824
df8fc4626a9e *** empty log message ***
oheimb
parents: 4806
diff changeset
  1321
  addWrapper, addSWrapper: claset * (string * wrapper) -> claset
df8fc4626a9e *** empty log message ***
oheimb
parents: 4806
diff changeset
  1322
  delWrapper, delSWrapper: claset *  string            -> claset
4649
89ad3eb863a1 changed wrapper mechanism of classical reasoner
oheimb
parents: 4575
diff changeset
  1323
  getWrapper is renamed to appWrappers, getSWrapper to appSWrappers;
89ad3eb863a1 changed wrapper mechanism of classical reasoner
oheimb
parents: 4575
diff changeset
  1324
5705
56f2030c46c6 tuned (all proofs are INSTABLE by David's definition of instability);
wenzelm
parents: 5671
diff changeset
  1325
* Classical reasoner: addbefore/addSbefore now have APPEND/ORELSE
5726
wenzelm
parents: 5722
diff changeset
  1326
semantics; addbefore now affects only the unsafe part of step_tac
wenzelm
parents: 5722
diff changeset
  1327
etc.; this affects addss/auto_tac/force_tac, so EXISTING PROOFS MAY
wenzelm
parents: 5722
diff changeset
  1328
FAIL, but proofs should be fixable easily, e.g. by replacing Auto_tac
wenzelm
parents: 5722
diff changeset
  1329
by Force_tac;
5524
38f2a518a811 *** empty log message ***
oheimb
parents: 5490
diff changeset
  1330
5726
wenzelm
parents: 5722
diff changeset
  1331
* Classical reasoner: setwrapper to setWrapper and compwrapper to
wenzelm
parents: 5722
diff changeset
  1332
compWrapper; added safe wrapper (and access functions for it);
5524
38f2a518a811 *** empty log message ***
oheimb
parents: 5490
diff changeset
  1333
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  1334
* HOL/split_all_tac is now much faster and fails if there is nothing
5726
wenzelm
parents: 5722
diff changeset
  1335
to split.  Some EXISTING PROOFS MAY REQUIRE ADAPTION because the order
wenzelm
parents: 5722
diff changeset
  1336
and the names of the automatically generated variables have changed.
wenzelm
parents: 5722
diff changeset
  1337
split_all_tac has moved within claset() from unsafe wrappers to safe
wenzelm
parents: 5722
diff changeset
  1338
wrappers, which means that !!-bound variables are split much more
wenzelm
parents: 5722
diff changeset
  1339
aggressively, and safe_tac and clarify_tac now split such variables.
wenzelm
parents: 5722
diff changeset
  1340
If this splitting is not appropriate, use delSWrapper "split_all_tac".
wenzelm
parents: 5722
diff changeset
  1341
Note: the same holds for record_split_tac, which does the job of
wenzelm
parents: 5722
diff changeset
  1342
split_all_tac for record fields.
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  1343
5726
wenzelm
parents: 5722
diff changeset
  1344
* HOL/Simplifier: Rewrite rules for case distinctions can now be added
wenzelm
parents: 5722
diff changeset
  1345
permanently to the default simpset using Addsplits just like
wenzelm
parents: 5722
diff changeset
  1346
Addsimps. They can be removed via Delsplits just like
wenzelm
parents: 5722
diff changeset
  1347
Delsimps. Lower-case versions are also available.
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  1348
5726
wenzelm
parents: 5722
diff changeset
  1349
* HOL/Simplifier: The rule split_if is now part of the default
wenzelm
parents: 5722
diff changeset
  1350
simpset. This means that the simplifier will eliminate all occurrences
wenzelm
parents: 5722
diff changeset
  1351
of if-then-else in the conclusion of a goal. To prevent this, you can
wenzelm
parents: 5722
diff changeset
  1352
either remove split_if completely from the default simpset by
wenzelm
parents: 5722
diff changeset
  1353
`Delsplits [split_if]' or remove it in a specific call of the
wenzelm
parents: 5722
diff changeset
  1354
simplifier using `... delsplits [split_if]'.  You can also add/delete
wenzelm
parents: 5722
diff changeset
  1355
other case splitting rules to/from the default simpset: every datatype
wenzelm
parents: 5722
diff changeset
  1356
generates suitable rules `split_t_case' and `split_t_case_asm' (where
wenzelm
parents: 5722
diff changeset
  1357
t is the name of the datatype).
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  1358
5726
wenzelm
parents: 5722
diff changeset
  1359
* Classical reasoner / Simplifier combination: new force_tac (and
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  1360
derivatives Force_tac, force) combines rewriting and classical
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  1361
reasoning (and whatever other tools) similarly to auto_tac, but is
5726
wenzelm
parents: 5722
diff changeset
  1362
aimed to solve the given subgoal completely.
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  1363
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  1364
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  1365
*** General ***
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  1366
5217
wenzelm
parents: 5214
diff changeset
  1367
* new top-level commands `Goal' and `Goalw' that improve upon `goal'
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  1368
and `goalw': the theory is no longer needed as an explicit argument -
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  1369
the current theory context is used; assumptions are no longer returned
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  1370
at the ML-level unless one of them starts with ==> or !!; it is
5217
wenzelm
parents: 5214
diff changeset
  1371
recommended to convert to these new commands using isatool fixgoal
wenzelm
parents: 5214
diff changeset
  1372
(backup your sources first!);
4842
0afcae75b34a *** empty log message ***
wenzelm
parents: 4838
diff changeset
  1373
5217
wenzelm
parents: 5214
diff changeset
  1374
* new top-level commands 'thm' and 'thms' for retrieving theorems from
5207
wenzelm
parents: 5160
diff changeset
  1375
the current theory context, and 'theory' to lookup stored theories;
4806
79cc986bc4d7 bug fixes
paulson
parents: 4801
diff changeset
  1376
5722
c669e2161b08 locales
paulson
parents: 5710
diff changeset
  1377
* new theory section 'locale' for declaring constants, assumptions and
c669e2161b08 locales
paulson
parents: 5710
diff changeset
  1378
definitions that have local scope;
c669e2161b08 locales
paulson
parents: 5710
diff changeset
  1379
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  1380
* new theory section 'nonterminals' for purely syntactic types;
4858
4b15e9e1b3a5 new theory section 'nonterminals';
wenzelm
parents: 4842
diff changeset
  1381
5127
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  1382
* new theory section 'setup' for generic ML setup functions
ef467e05da61 cleaned up;
wenzelm
parents: 5125
diff changeset
  1383
(e.g. package initialization);
4869
f3d30c02c1db new theory section 'setup';
wenzelm
parents: 4858
diff changeset
  1384
5131
dd4ac220b8b4 the distribution now includes Isabelle icons: see
wenzelm
parents: 5128
diff changeset
  1385
* the distribution now includes Isabelle icons: see
dd4ac220b8b4 the distribution now includes Isabelle icons: see
wenzelm
parents: 5128
diff changeset
  1386
lib/logo/isabelle-{small,tiny}.xpm;
dd4ac220b8b4 the distribution now includes Isabelle icons: see
wenzelm
parents: 5128
diff changeset
  1387
5363
0cf15843b82f isatool install;
wenzelm
parents: 5332
diff changeset
  1388
* isatool install - install binaries with absolute references to
0cf15843b82f isatool install;
wenzelm
parents: 5332
diff changeset
  1389
ISABELLE_HOME/bin;
0cf15843b82f isatool install;
wenzelm
parents: 5332
diff changeset
  1390
5572
53c6ea1e6d94 isatool logo;
wenzelm
parents: 5541
diff changeset
  1391
* isatool logo -- create instances of the Isabelle logo (as EPS);
53c6ea1e6d94 isatool logo;
wenzelm
parents: 5541
diff changeset
  1392
5407
b450fea6d70c * print mode 'emacs' reserved for Isamode;
wenzelm
parents: 5397
diff changeset
  1393
* print mode 'emacs' reserved for Isamode;
b450fea6d70c * print mode 'emacs' reserved for Isamode;
wenzelm
parents: 5397
diff changeset
  1394
5726
wenzelm
parents: 5722
diff changeset
  1395
* support multiple print (ast) translations per constant name;
wenzelm
parents: 5722
diff changeset
  1396
6925
8d4d45ec6a3d theorems involving oracles are now printed with a suffixed [!];
wenzelm
parents: 6922
diff changeset
  1397
* theorems involving oracles are now printed with a suffixed [!];
8d4d45ec6a3d theorems involving oracles are now printed with a suffixed [!];
wenzelm
parents: 6922
diff changeset
  1398
4711
75a9ef36b1fe removed pred;
wenzelm
parents: 4683
diff changeset
  1399
4661
paulson
parents: 4655
diff changeset
  1400
*** HOL ***
paulson
parents: 4655
diff changeset
  1401
5710
wenzelm
parents: 5709
diff changeset
  1402
* there is now a tutorial on Isabelle/HOL (do 'isatool doc tutorial');
5709
35b07f8e67b6 Tutorial
nipkow
parents: 5705
diff changeset
  1403
5217
wenzelm
parents: 5214
diff changeset
  1404
* HOL/inductive package reorganized and improved: now supports mutual
5267
41a01176b9de disjointness
paulson
parents: 5251
diff changeset
  1405
definitions such as
5217
wenzelm
parents: 5214
diff changeset
  1406
wenzelm
parents: 5214
diff changeset
  1407
  inductive EVEN ODD
wenzelm
parents: 5214
diff changeset
  1408
    intrs
wenzelm
parents: 5214
diff changeset
  1409
      null "0 : EVEN"
wenzelm
parents: 5214
diff changeset
  1410
      oddI "n : EVEN ==> Suc n : ODD"
wenzelm
parents: 5214
diff changeset
  1411
      evenI "n : ODD ==> Suc n : EVEN"
wenzelm
parents: 5214
diff changeset
  1412
wenzelm
parents: 5214
diff changeset
  1413
new theorem list "elims" contains an elimination rule for each of the
wenzelm
parents: 5214
diff changeset
  1414
recursive sets; inductive definitions now handle disjunctive premises
wenzelm
parents: 5214
diff changeset
  1415
correctly (also ZF);
5214
75c6392d1274 Adapted to new datatype package.
berghofe
parents: 5207
diff changeset
  1416
5217
wenzelm
parents: 5214
diff changeset
  1417
INCOMPATIBILITIES: requires Inductive as an ancestor; component
w