NEWS
author nipkow
Sun, 06 Apr 2003 10:08:52 +0200
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child 13938 b033b53d0c1e
permissions -rw-r--r--
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Isabelle NEWS -- history user-relevant changes
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==============================================
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ed941505cab7 Isabelle NEWS -- history of user-visible changes;
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New in this Isabelle release
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----------------------------
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*** General ***
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* Provers/simplifier:
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  - Completely reimplemented method simp (ML: Asm_full_simp_tac):
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    Assumptions are now subject to complete mutual simplification,
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    not just from left to right. The simplifier now preserves
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    the order of assumptions.
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    Potential INCOMPATIBILITY:
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    -- simp sometimes diverges where the old version did
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       not, e.g. invoking simp on the goal
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        [| P (f x); y = x; f x = f y |] ==> Q
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       now gives rise to the infinite reduction sequence
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        P(f x) --(f x = f y)--> P(f y) --(y = x)--> P(f x) --(f x = f y)--> ...
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       Using "simp (asm_lr)" (ML: Asm_lr_simp_tac) instead often solves this
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       kind of problem.
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    -- Tactics combining classical reasoner and simplification (such as auto)
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       are also affected by this change, because many of them rely on
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       simp. They may sometimes diverge as well or yield a different numbers
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       of subgoals. Try to use e.g. force, fastsimp, or safe instead of auto
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       in case of problems. Sometimes subsequent calls to the classical
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       reasoner will fail because a preceeding call to the simplifier too
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       eagerly simplified the goal, e.g. deleted redundant premises.
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  - The simplifier trace now shows the names of the applied rewrite rules
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  - You can limit the number of recursive invocations of the simplifier
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    during conditional rewriting (where the simplifie tries to solve the
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    conditions before applying the rewrite rule):
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    ML "simp_depth_limit := n"
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    where n is an integer. Thus you can force termination where previously
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    the simplifier would diverge.
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  - Accepts free variables as head terms in congruence rules.  Useful in Isar.
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* Pure: The main goal of the proof state is no longer shown by default, only
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the subgoals. This behaviour is controlled by a new flag.
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   PG menu: Isabelle/Isar -> Settings -> Show Main Goal
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(ML: Proof.show_main_goal).
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* Pure: You can find all matching introduction rules for subgoal 1, i.e. all
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rules whose conclusion matches subgoal 1:
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      PG menu: Isabelle/Isar -> Show me -> matching rules
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The rules are ordered by how closely they match the subgoal.
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In particular, rules that solve a subgoal outright are displayed first
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(or rather last, the way they are printed).
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(ML: ProofGeneral.print_intros())
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* Pure: New flag trace_unify_fail causes unification to print
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diagnostic information (PG: in trace buffer) when it fails. This is
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useful for figuring out why single step proofs like rule, erule or
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assumption failed.
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* Pure: Locale specifications now produce predicate definitions
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according to the body of text (covering assumptions modulo local
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definitions); predicate "loc_axioms" covers newly introduced text,
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while "loc" is cumulative wrt. all included locale expressions; the
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latter view is presented only on export into the global theory
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context; potential INCOMPATIBILITY, use "(open)" option to fall back
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on the old view without predicates;
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* Pure: predefined locales "var" and "struct" are useful for sharing
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parameters (as in CASL, for example); just specify something like
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``var x + var y + struct M'' as import;
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* Pure: improved thms_containing: proper indexing of facts instead of
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raw theorems; check validity of results wrt. current name space;
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include local facts of proof configuration (also covers active
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locales), cover fixed variables in index; may use "_" in term
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specification; an optional limit for the number of printed facts may
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be given (the default is 40);
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* Pure: disallow duplicate fact bindings within new-style theory files
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(batch-mode only);
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* Provers: improved induct method: assumptions introduced by case
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"foo" are split into "foo.hyps" (from the rule) and "foo.prems" (from
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the goal statement); "foo" still refers to all facts collectively;
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* Provers: the function blast.overloaded has been removed: all constants
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are regarded as potentially overloaded, which improves robustness in exchange
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for slight decrease in efficiency;
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* Provers/linorder: New generic prover for transitivity reasoning over
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linear orders.  Note: this prover is not efficient!
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* Isar: preview of problems to finish 'show' now produce an error
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rather than just a warning (in interactive mode);
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*** HOL ***
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* arith(_tac)
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 - Produces a counter example if it cannot prove a goal.
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   Note that the counter example may be spurious if the goal is not a formula
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   of quantifier-free linear arithmetic.
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   In ProofGeneral the counter example appears in the trace buffer.
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 - Knows about div k and mod k where k is a numeral of type nat or int.
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 - Calls full Presburger arithmetic (by Amine Chaieb) if quantifier-free
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   linear arithmetic fails. This takes account of quantifiers and divisibility.
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   Presburger arithmetic can also be called explicitly via presburger(_tac). 
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* simp's arithmetic capabilities have been enhanced a bit: it now
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takes ~= in premises into account (by performing a case split);
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* simp reduces "m*(n div m) + n mod m" to n, even if the two summands
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are distributed over a sum of terms;
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* New tactic "trans_tac" and method "trans" instantiate
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Provers/linorder.ML for axclasses "order" and "linorder" (predicates
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"<=", "<" and "="). 
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* function INCOMPATIBILITIES: Pi-sets have been redefined and moved from main 
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HOL to Library/FuncSet; constant "Fun.op o" is now called "Fun.comp";
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* 'typedef' command has new option "open" to suppress the set
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definition;
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* functions Min and Max on finite sets have been introduced (theory
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Finite_Set);
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* attribute [symmetric] now works for relations as well; it turns
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(x,y) : R^-1 into (y,x) : R, and vice versa;
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* induct over a !!-quantified statement (say !!x1..xn):
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  each "case" automatically performs "fix x1 .. xn" with exactly those names.
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* Map: `empty' is no longer a constant but a syntactic abbreviation for
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%x. None. Warning: empty_def now refers to the previously hidden definition
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of the empty set.
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* Real/HahnBanach: updated and adapted to locales;
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* GroupTheory: converted to Isar theories, using locales with implicit
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structures.  Also a new, experimental summation operator for abelian groups;
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* NumberTheory: added Gauss's law of quadratic reciprocity (by Avigad, Gray and
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Kramer);
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* UNITY: added the Meier-Sanders theory of progress sets;
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*** ZF ***
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* ZF/Constructible: consistency proof for AC (Gödel's constructible
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universe, etc.);
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* Main ZF: virtually all theories converted to new-style format;
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*** ML ***
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* Pure: Tactic.prove provides sane interface for internal proofs;
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   170
omits the infamous "standard" operation, so this is more appropriate
9cfbcb9acfef * Pure: improved error reporting of simprocs;
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   171
than prove_goalw_cterm in many situations (e.g. in simprocs);
9cfbcb9acfef * Pure: improved error reporting of simprocs;
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   172
9cfbcb9acfef * Pure: improved error reporting of simprocs;
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   173
* Pure: improved error reporting of simprocs;
9cfbcb9acfef * Pure: improved error reporting of simprocs;
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   174
9cfbcb9acfef * Pure: improved error reporting of simprocs;
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   175
* Provers: Simplifier.simproc(_i) provides sane interface for setting
9cfbcb9acfef * Pure: improved error reporting of simprocs;
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   176
up simprocs;
9cfbcb9acfef * Pure: improved error reporting of simprocs;
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   177
9cfbcb9acfef * Pure: improved error reporting of simprocs;
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   178
13280
306ef3aef61b * improved thms_containing: proper indexing of facts instead of raw
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   179
12984
6071200efbf6 fixed date;
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   180
New in Isabelle2002 (March 2002)
6071200efbf6 fixed date;
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   181
--------------------------------
11474
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   182
11572
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   183
*** Document preparation ***
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11842
b903d3dabbe2 * greatly simplified document preparation setup, including more
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   185
* greatly simplified document preparation setup, including more
b903d3dabbe2 * greatly simplified document preparation setup, including more
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   186
graceful interpretation of isatool usedir -i/-d/-D options, and more
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
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   187
instructive isatool mkdir; users should basically be able to get
12899
7d5b690253ee "isatool usedir -D output HOL Test && isatool document Test/output";
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   188
started with "isatool mkdir HOL Test && isatool make"; alternatively,
7d5b690253ee "isatool usedir -D output HOL Test && isatool document Test/output";
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diff changeset
   189
users may run a separate document processing stage manually like this:
7d5b690253ee "isatool usedir -D output HOL Test && isatool document Test/output";
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   190
"isatool usedir -D output HOL Test && isatool document Test/output";
11842
b903d3dabbe2 * greatly simplified document preparation setup, including more
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   191
b903d3dabbe2 * greatly simplified document preparation setup, including more
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   192
* theory dependency graph may now be incorporated into documents;
b903d3dabbe2 * greatly simplified document preparation setup, including more
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   193
isatool usedir -g true will produce session_graph.eps/.pdf for use
b903d3dabbe2 * greatly simplified document preparation setup, including more
wenzelm
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   194
with \includegraphics of LaTeX;
b903d3dabbe2 * greatly simplified document preparation setup, including more
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   195
11864
371ce685b0ec * proper spacing of consecutive markup elements, especially text
wenzelm
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   196
* proper spacing of consecutive markup elements, especially text
371ce685b0ec * proper spacing of consecutive markup elements, especially text
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   197
blocks after section headings;
371ce685b0ec * proper spacing of consecutive markup elements, especially text
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   198
11572
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   199
* support bold style (for single symbols only), input syntax is like
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   200
this: "\<^bold>\<alpha>" or "\<^bold>A";
wenzelm
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   201
11814
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   202
* \<bullet> is now output as bold \cdot by default, which looks much
11572
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   203
better in printed text;
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   204
11712
deb8cac87063 * added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
wenzelm
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   205
* added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
deb8cac87063 * added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
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diff changeset
   206
note that these symbols are currently unavailable in Proof General /
12769
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diff changeset
   207
X-Symbol; new symbols \<zero>, \<one>, ..., \<nine>, and \<euro>;
12690
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
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   208
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
   209
* isatool latex no longer depends on changed TEXINPUTS, instead
ac3fa7c05e5a * added \<euro> symbol;
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   210
isatool document copies the Isabelle style files to the target
ac3fa7c05e5a * added \<euro> symbol;
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   211
location;
11712
deb8cac87063 * added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
wenzelm
parents: 11702
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   212
11572
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diff changeset
   213
11633
c8945e0dc00b *** empty log message ***
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   214
*** Isar ***
c8945e0dc00b *** empty log message ***
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   215
12312
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
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diff changeset
   216
* Pure/Provers: improved proof by cases and induction;
12280
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   217
  - 'case' command admits impromptu naming of parameters (such as
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diff changeset
   218
    "case (Suc n)");
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parents: 12253
diff changeset
   219
  - 'induct' method divinates rule instantiation from the inductive
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parents: 12253
diff changeset
   220
    claim; no longer requires excessive ?P bindings for proper
wenzelm
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diff changeset
   221
    instantiation of cases;
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parents: 12253
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   222
  - 'induct' method properly enumerates all possibilities of set/type
wenzelm
parents: 12253
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   223
    rules; as a consequence facts may be also passed through *type*
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parents: 12253
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   224
    rules without further ado;
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diff changeset
   225
  - 'induct' method now derives symbolic cases from the *rulified*
wenzelm
parents: 12253
diff changeset
   226
    rule (before it used to rulify cases stemming from the internal
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diff changeset
   227
    atomized version); this means that the context of a non-atomic
wenzelm
parents: 12253
diff changeset
   228
    statement becomes is included in the hypothesis, avoiding the
wenzelm
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diff changeset
   229
    slightly cumbersome show "PROP ?case" form;
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diff changeset
   230
  - 'induct' may now use elim-style induction rules without chaining
wenzelm
parents: 12253
diff changeset
   231
    facts, using ``missing'' premises from the goal state; this allows
wenzelm
parents: 12253
diff changeset
   232
    rules stemming from inductive sets to be applied in unstructured
wenzelm
parents: 12253
diff changeset
   233
    scripts, while still benefitting from proper handling of non-atomic
wenzelm
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diff changeset
   234
    statements; NB: major inductive premises need to be put first, all
wenzelm
parents: 12253
diff changeset
   235
    the rest of the goal is passed through the induction;
wenzelm
parents: 12253
diff changeset
   236
  - 'induct' proper support for mutual induction involving non-atomic
wenzelm
parents: 12253
diff changeset
   237
    rule statements (uses the new concept of simultaneous goals, see
wenzelm
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diff changeset
   238
    below);
12853
de505273c971 Isar cases/induct: no backtracking;
wenzelm
parents: 12850
diff changeset
   239
  - append all possible rule selections, but only use the first
de505273c971 Isar cases/induct: no backtracking;
wenzelm
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diff changeset
   240
    success (no backtracking);
11995
4a622f5fb164 - 'induct' may now use elim-style induction rules without chaining
wenzelm
parents: 11986
diff changeset
   241
  - removed obsolete "(simplified)" and "(stripped)" options of methods;
12754
044a59921f3b Isar: undeclared rule case names default to numbers 1, 2, 3, ...;
wenzelm
parents: 12753
diff changeset
   242
  - undeclared rule case names default to numbers 1, 2, 3, ...;
044a59921f3b Isar: undeclared rule case names default to numbers 1, 2, 3, ...;
wenzelm
parents: 12753
diff changeset
   243
  - added 'print_induct_rules' (covered by help item in recent Proof
044a59921f3b Isar: undeclared rule case names default to numbers 1, 2, 3, ...;
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parents: 12753
diff changeset
   244
    General versions);
11995
4a622f5fb164 - 'induct' may now use elim-style induction rules without chaining
wenzelm
parents: 11986
diff changeset
   245
  - moved induct/cases attributes to Pure, methods to Provers;
4a622f5fb164 - 'induct' may now use elim-style induction rules without chaining
wenzelm
parents: 11986
diff changeset
   246
  - generic method setup instantiated for FOL and HOL;
11986
26b95a6f3f79 - 'induct' method now derives symbolic cases from the *rulified* rule
wenzelm
parents: 11965
diff changeset
   247
12163
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   248
* Pure: support multiple simultaneous goal statements, for example
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   249
"have a: A and b: B" (same for 'theorem' etc.); being a pure
04c98351f9af Isar: 'induct' proper support for mutual induction involving
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diff changeset
   250
meta-level mechanism, this acts as if several individual goals had
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   251
been stated separately; in particular common proof methods need to be
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   252
repeated in order to cover all claims; note that a single elimination
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   253
step is *not* sufficient to establish the two conjunctions, so this
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   254
fails:
04c98351f9af Isar: 'induct' proper support for mutual induction involving
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parents: 12159
diff changeset
   255
04c98351f9af Isar: 'induct' proper support for mutual induction involving
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diff changeset
   256
  assume "A & B" then have A and B ..   (*".." fails*)
04c98351f9af Isar: 'induct' proper support for mutual induction involving
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diff changeset
   257
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   258
better use "obtain" in situations as above; alternative refer to
04c98351f9af Isar: 'induct' proper support for mutual induction involving
wenzelm
parents: 12159
diff changeset
   259
multi-step methods like 'auto', 'simp_all', 'blast+' etc.;
04c98351f9af Isar: 'induct' proper support for mutual induction involving
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diff changeset
   260
12078
4eb8061286e5 * Isar/Pure: proper integration with ``locales''; unlike the original
wenzelm
parents: 12034
diff changeset
   261
* Pure: proper integration with ``locales''; unlike the original
12210
2f510d8d8291 * ZF: new-style theory commands '(co)inductive', '(co)datatype',
wenzelm
parents: 12177
diff changeset
   262
version by Florian Kammüller, Isar locales package high-level proof
12078
4eb8061286e5 * Isar/Pure: proper integration with ``locales''; unlike the original
wenzelm
parents: 12034
diff changeset
   263
contexts rather than raw logical ones (e.g. we admit to include
12280
wenzelm
parents: 12253
diff changeset
   264
attributes everywhere); operations on locales include merge and
12964
wenzelm
parents: 12924
diff changeset
   265
rename; support for implicit arguments (``structures''); simultaneous
wenzelm
parents: 12924
diff changeset
   266
type-inference over imports and text; see also HOL/ex/Locales.thy for
wenzelm
parents: 12924
diff changeset
   267
some examples;
12078
4eb8061286e5 * Isar/Pure: proper integration with ``locales''; unlike the original
wenzelm
parents: 12034
diff changeset
   268
12707
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   269
* Pure: the following commands have been ``localized'', supporting a
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   270
target locale specification "(in name)": 'lemma', 'theorem',
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   271
'corollary', 'lemmas', 'theorems', 'declare'; the results will be
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   272
stored both within the locale and at the theory level (exported and
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   273
qualified by the locale name);
4013be8572c5 * Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents: 12690
diff changeset
   274
12964
wenzelm
parents: 12924
diff changeset
   275
* Pure: theory goals may now be specified in ``long'' form, with
wenzelm
parents: 12924
diff changeset
   276
ad-hoc contexts consisting of arbitrary locale elements. for example
wenzelm
parents: 12924
diff changeset
   277
``lemma foo: fixes x assumes "A x" shows "B x"'' (local syntax and
wenzelm
parents: 12924
diff changeset
   278
definitions may be given, too); the result is a meta-level rule with
wenzelm
parents: 12924
diff changeset
   279
the context elements being discharged in the obvious way;
wenzelm
parents: 12924
diff changeset
   280
wenzelm
parents: 12924
diff changeset
   281
* Pure: new proof command 'using' allows to augment currently used
wenzelm
parents: 12924
diff changeset
   282
facts after a goal statement ('using' is syntactically analogous to
wenzelm
parents: 12924
diff changeset
   283
'apply', but acts on the goal's facts only); this allows chained facts
wenzelm
parents: 12924
diff changeset
   284
to be separated into parts given before and after a claim, as in
wenzelm
parents: 12924
diff changeset
   285
``from a and b have C using d and e <proof>'';
12078
4eb8061286e5 * Isar/Pure: proper integration with ``locales''; unlike the original
wenzelm
parents: 12034
diff changeset
   286
11722
78cf55fd57c6 * Isar/Pure: fixed 'token_translation' command;
wenzelm
parents: 11712
diff changeset
   287
* Pure: renamed "antecedent" case to "rule_context";
78cf55fd57c6 * Isar/Pure: fixed 'token_translation' command;
wenzelm
parents: 11712
diff changeset
   288
12964
wenzelm
parents: 12924
diff changeset
   289
* Pure: new 'judgment' command records explicit information about the
wenzelm
parents: 12924
diff changeset
   290
object-logic embedding (used by several tools internally); no longer
wenzelm
parents: 12924
diff changeset
   291
use hard-wired "Trueprop";
wenzelm
parents: 12924
diff changeset
   292
11738
7c7a902a5c65 * Pure: added 'corollary' command;
wenzelm
parents: 11722
diff changeset
   293
* Pure: added 'corollary' command;
7c7a902a5c65 * Pure: added 'corollary' command;
wenzelm
parents: 11722
diff changeset
   294
11722
78cf55fd57c6 * Isar/Pure: fixed 'token_translation' command;
wenzelm
parents: 11712
diff changeset
   295
* Pure: fixed 'token_translation' command;
78cf55fd57c6 * Isar/Pure: fixed 'token_translation' command;
wenzelm
parents: 11712
diff changeset
   296
11899
e543b0f01a58 * Pure: removed obsolete 'exported' attribute;
wenzelm
parents: 11864
diff changeset
   297
* Pure: removed obsolete 'exported' attribute;
e543b0f01a58 * Pure: removed obsolete 'exported' attribute;
wenzelm
parents: 11864
diff changeset
   298
11933
wenzelm
parents: 11930
diff changeset
   299
* Pure: dummy pattern "_" in is/let is now automatically lifted over
wenzelm
parents: 11930
diff changeset
   300
bound variables: "ALL x. P x --> Q x" (is "ALL x. _ --> ?C x")
11899
e543b0f01a58 * Pure: removed obsolete 'exported' attribute;
wenzelm
parents: 11864
diff changeset
   301
supersedes more cumbersome ... (is "ALL x. _ x --> ?C x");
e543b0f01a58 * Pure: removed obsolete 'exported' attribute;
wenzelm
parents: 11864
diff changeset
   302
11952
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
   303
* Pure: method 'atomize' presents local goal premises as object-level
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
   304
statements (atomic meta-level propositions); setup controlled via
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
   305
rewrite rules declarations of 'atomize' attribute; example
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
   306
application: 'induct' method with proper rule statements in improper
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
   307
proof *scripts*;
b10f1e8862f4 * Pure: method 'atomize' presents local goal premises as object-level
wenzelm
parents: 11937
diff changeset
   308
12106
4a8558dbb6a0 * Isar/Pure: emulation of instantiation tactics (rule_tac, cut_tac,
wenzelm
parents: 12078
diff changeset
   309
* Pure: emulation of instantiation tactics (rule_tac, cut_tac, etc.)
4a8558dbb6a0 * Isar/Pure: emulation of instantiation tactics (rule_tac, cut_tac,
wenzelm
parents: 12078
diff changeset
   310
now consider the syntactic context of assumptions, giving a better
4a8558dbb6a0 * Isar/Pure: emulation of instantiation tactics (rule_tac, cut_tac,
wenzelm
parents: 12078
diff changeset
   311
chance to get type-inference of the arguments right (this is
4a8558dbb6a0 * Isar/Pure: emulation of instantiation tactics (rule_tac, cut_tac,
wenzelm
parents: 12078
diff changeset
   312
especially important for locales);
4a8558dbb6a0 * Isar/Pure: emulation of instantiation tactics (rule_tac, cut_tac,
wenzelm
parents: 12078
diff changeset
   313
12312
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   314
* Pure: "sorry" no longer requires quick_and_dirty in interactive
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   315
mode;
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   316
12405
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   317
* Pure/obtain: the formal conclusion "thesis", being marked as
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   318
``internal'', may no longer be reference directly in the text;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   319
potential INCOMPATIBILITY, may need to use "?thesis" in rare
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   320
situations;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   321
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   322
* Pure: generic 'sym' attribute which declares a rule both as pure
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   323
'elim?' and for the 'symmetric' operation;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   324
12877
b9635eb8a448 * Isar/Pure: marginal comments ``--'' may now occur just anywhere in the text;
wenzelm
parents: 12853
diff changeset
   325
* Pure: marginal comments ``--'' may now occur just anywhere in the
b9635eb8a448 * Isar/Pure: marginal comments ``--'' may now occur just anywhere in the text;
wenzelm
parents: 12853
diff changeset
   326
text; the fixed correlation with particular command syntax has been
b9635eb8a448 * Isar/Pure: marginal comments ``--'' may now occur just anywhere in the text;
wenzelm
parents: 12853
diff changeset
   327
discontinued;
b9635eb8a448 * Isar/Pure: marginal comments ``--'' may now occur just anywhere in the text;
wenzelm
parents: 12853
diff changeset
   328
13023
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
   329
* Pure: new method 'rules' is particularly well-suited for proof
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
   330
search in intuitionistic logic; a bit slower than 'blast' or 'fast',
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
   331
but often produces more compact proof terms with less detours;
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
   332
12364
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   333
* Pure/Provers/classical: simplified integration with pure rule
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   334
attributes and methods; the classical "intro?/elim?/dest?"
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   335
declarations coincide with the pure ones; the "rule" method no longer
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   336
includes classically swapped intros; "intro" and "elim" methods no
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   337
longer pick rules from the context; also got rid of ML declarations
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   338
AddXIs/AddXEs/AddXDs; all of this has some potential for
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   339
INCOMPATIBILITY;
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   340
12405
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   341
* Provers/classical: attribute 'swapped' produces classical inversions
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   342
of introduction rules;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   343
12364
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   344
* Provers/simplifier: 'simplified' attribute may refer to explicit
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   345
rules instead of full simplifier context; 'iff' attribute handles
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   346
conditional rules;
11936
fef099613354 * Provers: 'simplified' attribute may refer to explicit rules instead
wenzelm
parents: 11933
diff changeset
   347
11745
06cd8c3b5487 * HOL: 'typedef' now allows alternative names for Rep/Abs morphisms;
wenzelm
parents: 11738
diff changeset
   348
* HOL: 'typedef' now allows alternative names for Rep/Abs morphisms;
06cd8c3b5487 * HOL: 'typedef' now allows alternative names for Rep/Abs morphisms;
wenzelm
parents: 11738
diff changeset
   349
11690
cb64368fb405 improved proof by cases and induction;
wenzelm
parents: 11663
diff changeset
   350
* HOL: 'recdef' now fails on unfinished automated proofs, use
11633
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   351
"(permissive)" option to recover old behavior;
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   352
11933
wenzelm
parents: 11930
diff changeset
   353
* HOL: 'inductive' no longer features separate (collective) attributes
wenzelm
parents: 11930
diff changeset
   354
for 'intros' (was found too confusing);
wenzelm
parents: 11930
diff changeset
   355
12405
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   356
* HOL: properly declared induction rules less_induct and
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   357
wf_induct_rule;
9b16f99fd7b9 * Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents: 12364
diff changeset
   358
11788
60054fee3c16 canonical 'cases'/'induct' rules for n-tuples (n=3..7)
kleing
parents: 11745
diff changeset
   359
11474
wenzelm
parents: 11437
diff changeset
   360
*** HOL ***
wenzelm
parents: 11437
diff changeset
   361
11702
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   362
* HOL: moved over to sane numeral syntax; the new policy is as
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   363
follows:
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   364
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   365
  - 0 and 1 are polymorphic constants, which are defined on any
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   366
  numeric type (nat, int, real etc.);
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   367
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   368
  - 2, 3, 4, ... and -1, -2, -3, ... are polymorphic numerals, based
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   369
  binary representation internally;
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   370
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   371
  - type nat has special constructor Suc, and generally prefers Suc 0
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   372
  over 1::nat and Suc (Suc 0) over 2::nat;
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   373
12364
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   374
This change may cause significant problems of INCOMPATIBILITY; here
108cdda23ab3 * Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents: 12335
diff changeset
   375
are some hints on converting existing sources:
11702
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   376
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   377
  - due to the new "num" token, "-0" and "-1" etc. are now atomic
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   378
  entities, so expressions involving "-" (unary or binary minus) need
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   379
  to be spaced properly;
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   380
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   381
  - existing occurrences of "1" may need to be constraint "1::nat" or
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   382
  even replaced by Suc 0; similar for old "2";
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   383
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   384
  - replace "#nnn" by "nnn", and "#-nnn" by "-nnn";
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   385
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   386
  - remove all special provisions on numerals in proofs;
ebfe5ba905b0 *** empty log message ***
wenzelm
parents: 11700
diff changeset
   387
13042
wenzelm
parents: 13025
diff changeset
   388
* HOL: simp rules nat_number expand numerals on nat to Suc/0
12837
74ce01905e57 * HOL: nat_number_of;
wenzelm
parents: 12832
diff changeset
   389
representation (depends on bin_arith_simps in the default context);
74ce01905e57 * HOL: nat_number_of;
wenzelm
parents: 12832
diff changeset
   390
12736
80f10551fb59 * HOL: symbolic syntax for x^2 (numeral 2);
wenzelm
parents: 12734
diff changeset
   391
* HOL: symbolic syntax for x^2 (numeral 2);
80f10551fb59 * HOL: symbolic syntax for x^2 (numeral 2);
wenzelm
parents: 12734
diff changeset
   392
12335
db4d5f498742 * HOL: the class of all HOL types is now called "type" rather than
wenzelm
parents: 12312
diff changeset
   393
* HOL: the class of all HOL types is now called "type" rather than
db4d5f498742 * HOL: the class of all HOL types is now called "type" rather than
wenzelm
parents: 12312
diff changeset
   394
"term"; INCOMPATIBILITY, need to adapt references to this type class
db4d5f498742 * HOL: the class of all HOL types is now called "type" rather than
wenzelm
parents: 12312
diff changeset
   395
in axclass/classes, instance/arities, and (usually rare) occurrences
db4d5f498742 * HOL: the class of all HOL types is now called "type" rather than
wenzelm
parents: 12312
diff changeset
   396
in typings (of consts etc.); internally the class is called
db4d5f498742 * HOL: the class of all HOL types is now called "type" rather than
wenzelm
parents: 12312
diff changeset
   397
"HOL.type", ML programs should refer to HOLogic.typeS;
db4d5f498742 * HOL: the class of all HOL types is now called "type" rather than
wenzelm
parents: 12312
diff changeset
   398
12280
wenzelm
parents: 12253
diff changeset
   399
* HOL/record package improvements:
wenzelm
parents: 12253
diff changeset
   400
  - new derived operations "fields" to build a partial record section,
wenzelm
parents: 12253
diff changeset
   401
    "extend" to promote a fixed record to a record scheme, and
wenzelm
parents: 12253
diff changeset
   402
    "truncate" for the reverse; cf. theorems "xxx.defs", which are *not*
wenzelm
parents: 12253
diff changeset
   403
    declared as simp by default;
12587
3f3d2ffb5df5 HOL/record: shared operations ("more", "fields", etc.) now need to be
wenzelm
parents: 12564
diff changeset
   404
  - shared operations ("more", "fields", etc.) now need to be always
3f3d2ffb5df5 HOL/record: shared operations ("more", "fields", etc.) now need to be
wenzelm
parents: 12564
diff changeset
   405
    qualified) --- potential INCOMPATIBILITY;
12280
wenzelm
parents: 12253
diff changeset
   406
  - removed "make_scheme" operations (use "make" with "extend") --
wenzelm
parents: 12253
diff changeset
   407
    INCOMPATIBILITY;
11937
2a2b1182a23b * HOL/record:
wenzelm
parents: 11936
diff changeset
   408
  - removed "more" class (simply use "term") -- INCOMPATIBILITY;
12253
1886dc96b7e9 * HOL/record: cases/induct for more parts;
wenzelm
parents: 12245
diff changeset
   409
  - provides cases/induct rules for use with corresponding Isar
1886dc96b7e9 * HOL/record: cases/induct for more parts;
wenzelm
parents: 12245
diff changeset
   410
    methods (for concrete records, record schemes, concrete more
12280
wenzelm
parents: 12253
diff changeset
   411
    parts, and schematic more parts -- in that order);
11930
1accec985349 * HOL/record:
wenzelm
parents: 11921
diff changeset
   412
  - internal definitions directly based on a light-weight abstract
1accec985349 * HOL/record:
wenzelm
parents: 11921
diff changeset
   413
    theory of product types over typedef rather than datatype;
1accec985349 * HOL/record:
wenzelm
parents: 11921
diff changeset
   414
13023
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
   415
* HOL: generic code generator for generating executable ML code from
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
   416
specifications; specific support for HOL constructs such as inductive
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
   417
datatypes and sets, as well as recursive functions; can be invoked
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
   418
via 'generate_code' theory section;
f869b6822006 Added two paragraphs on "rules" method and code generator.
berghofe
parents: 12984
diff changeset
   419
11933
wenzelm
parents: 11930
diff changeset
   420
* HOL: canonical cases/induct rules for n-tuples (n = 3..7);
wenzelm
parents: 11930
diff changeset
   421
13824
e4d8dea6dfc2 minor updates to pre-2002 release
paulson
parents: 13815
diff changeset
   422
* HOL: consolidated and renamed several theories.  In particular:
e4d8dea6dfc2 minor updates to pre-2002 release
paulson
parents: 13815
diff changeset
   423
	Ord.thy has been absorbed into HOL.thy
e4d8dea6dfc2 minor updates to pre-2002 release
paulson
parents: 13815
diff changeset
   424
	String.thy has been absorbed into List.thy
e4d8dea6dfc2 minor updates to pre-2002 release
paulson
parents: 13815
diff changeset
   425
 
11802
1d5f5d2427d2 * HOL: concrete setsum syntax "\<Sum>i:A. b" == "setsum (%i. b) A"
wenzelm
parents: 11797
diff changeset
   426
* HOL: concrete setsum syntax "\<Sum>i:A. b" == "setsum (%i. b) A"
1d5f5d2427d2 * HOL: concrete setsum syntax "\<Sum>i:A. b" == "setsum (%i. b) A"
wenzelm
parents: 11797
diff changeset
   427
(beware of argument permutation!);
1d5f5d2427d2 * HOL: concrete setsum syntax "\<Sum>i:A. b" == "setsum (%i. b) A"
wenzelm
parents: 11797
diff changeset
   428
11657
03c4a5c08a79 *** empty log message ***
wenzelm
parents: 11633
diff changeset
   429
* HOL: linorder_less_split superseded by linorder_cases;
03c4a5c08a79 *** empty log message ***
wenzelm
parents: 11633
diff changeset
   430
12917
0fd3caa5d8b2 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12899
diff changeset
   431
* HOL/List: "nodups" renamed to "distinct";
12889
1de4f0b824a8 *** empty log message ***
nipkow
parents: 12877
diff changeset
   432
11633
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   433
* HOL: added "The" definite description operator; move Hilbert's "Eps"
13824
e4d8dea6dfc2 minor updates to pre-2002 release
paulson
parents: 13815
diff changeset
   434
to peripheral theory "Hilbert_Choice"; some INCOMPATIBILITIES:
e4d8dea6dfc2 minor updates to pre-2002 release
paulson
parents: 13815
diff changeset
   435
  - Ex_def has changed, now need to use some_eq_ex
11437
2338bce575ae HOL: added "The";
wenzelm
parents: 11397
diff changeset
   436
11572
wenzelm
parents: 11551
diff changeset
   437
* HOL: made split_all_tac safe; EXISTING PROOFS MAY FAIL OR LOOP, so
wenzelm
parents: 11551
diff changeset
   438
in this (rare) case use:
wenzelm
parents: 11551
diff changeset
   439
wenzelm
parents: 11551
diff changeset
   440
  delSWrapper "split_all_tac"
wenzelm
parents: 11551
diff changeset
   441
  addSbefore ("unsafe_split_all_tac", unsafe_split_all_tac)
wenzelm
parents: 11551
diff changeset
   442
wenzelm
parents: 11551
diff changeset
   443
* HOL: added safe wrapper "split_conv_tac" to claset; EXISTING PROOFS
11474
wenzelm
parents: 11437
diff changeset
   444
MAY FAIL;
11361
879e53d92f51 *** empty log message ***
nipkow
parents: 11314
diff changeset
   445
11572
wenzelm
parents: 11551
diff changeset
   446
* HOL: introduced f^n = f o ... o f; warning: due to the limits of
wenzelm
parents: 11551
diff changeset
   447
Isabelle's type classes, ^ on functions and relations has too general
wenzelm
parents: 11551
diff changeset
   448
a domain, namely ('a * 'b) set and 'a => 'b; this means that it may be
wenzelm
parents: 11551
diff changeset
   449
necessary to attach explicit type constraints;
11307
891fbd3f4881 *** empty log message ***
nipkow
parents: 11241
diff changeset
   450
12917
0fd3caa5d8b2 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12899
diff changeset
   451
* HOL/Relation: the prefix name of the infix "O" has been changed from
0fd3caa5d8b2 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12899
diff changeset
   452
"comp" to "rel_comp"; INCOMPATIBILITY: a few theorems have been
0fd3caa5d8b2 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12899
diff changeset
   453
renamed accordingly (eg "compI" -> "rel_compI").
12489
c92e38c3cbaa *** empty log message ***
nipkow
parents: 12472
diff changeset
   454
11487
95071c9e85a3 * HOL: syntax translations now work properly with numerals and records
wenzelm
parents: 11475
diff changeset
   455
* HOL: syntax translations now work properly with numerals and records
95071c9e85a3 * HOL: syntax translations now work properly with numerals and records
wenzelm
parents: 11475
diff changeset
   456
expressions;
11474
wenzelm
parents: 11437
diff changeset
   457
12457
cbfc53e45476 * HOL: bounded abstraction now uses syntax "%" / "\<lambda>" instead
wenzelm
parents: 12405
diff changeset
   458
* HOL: bounded abstraction now uses syntax "%" / "\<lambda>" instead
cbfc53e45476 * HOL: bounded abstraction now uses syntax "%" / "\<lambda>" instead
wenzelm
parents: 12405
diff changeset
   459
of "lam" -- INCOMPATIBILITY;
11474
wenzelm
parents: 11437
diff changeset
   460
11933
wenzelm
parents: 11930
diff changeset
   461
* HOL: got rid of some global declarations (potential INCOMPATIBILITY
wenzelm
parents: 11930
diff changeset
   462
for ML tools): const "()" renamed "Product_Type.Unity", type "unit"
wenzelm
parents: 11930
diff changeset
   463
renamed "Product_Type.unit";
11611
b0c69f4db64c HOL: eliminated global items;
wenzelm
parents: 11572
diff changeset
   464
12564
226873bffa3a *** empty log message ***
nipkow
parents: 12563
diff changeset
   465
* HOL: renamed rtrancl_into_rtrancl2 to converse_rtrancl_into_rtrancl
226873bffa3a *** empty log message ***
nipkow
parents: 12563
diff changeset
   466
12924
02eb40cde931 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12917
diff changeset
   467
* HOL: removed obsolete theorem "optionE" (use "option.exhaust", or
02eb40cde931 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12917
diff changeset
   468
the "cases" method);
02eb40cde931 * HOL: removed obsolete theorem "optionE";
wenzelm
parents: 12917
diff changeset
   469
12597
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
   470
* HOL/GroupTheory: group theory examples including Sylow's theorem (by
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
   471
Florian Kammüller);
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
   472
12608
2df381faa787 * ZF/IMP: updated and converted to new-style theory format;
wenzelm
parents: 12597
diff changeset
   473
* HOL/IMP: updated and converted to new-style theory format; several
2df381faa787 * ZF/IMP: updated and converted to new-style theory format;
wenzelm
parents: 12597
diff changeset
   474
parts turned into readable document, with proper Isar proof texts and
2df381faa787 * ZF/IMP: updated and converted to new-style theory format;
wenzelm
parents: 12597
diff changeset
   475
some explanations (by Gerwin Klein);
12597
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
   476
12734
c5f6d8259ecd HOL-Real/Complex_Numbers;
wenzelm
parents: 12728
diff changeset
   477
* HOL-Real: added Complex_Numbers (by Gertrud Bauer);
c5f6d8259ecd HOL-Real/Complex_Numbers;
wenzelm
parents: 12728
diff changeset
   478
12690
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
   479
* HOL-Hyperreal is now a logic image;
ac3fa7c05e5a * added \<euro> symbol;
wenzelm
parents: 12622
diff changeset
   480
11611
b0c69f4db64c HOL: eliminated global items;
wenzelm
parents: 11572
diff changeset
   481
12022
9c3377b133c0 HOLCF: proper rep_datatype lift (see theory Lift); use plain induct_tac
wenzelm
parents: 11995
diff changeset
   482
*** HOLCF ***
9c3377b133c0 HOLCF: proper rep_datatype lift (see theory Lift); use plain induct_tac
wenzelm
parents: 11995
diff changeset
   483
12622
wenzelm
parents: 12608
diff changeset
   484
* Isar: consts/constdefs supports mixfix syntax for continuous
wenzelm
parents: 12608
diff changeset
   485
operations;
wenzelm
parents: 12608
diff changeset
   486
wenzelm
parents: 12608
diff changeset
   487
* Isar: domain package adapted to new-style theory format, e.g. see
wenzelm
parents: 12608
diff changeset
   488
HOLCF/ex/Dnat.thy;
wenzelm
parents: 12608
diff changeset
   489
wenzelm
parents: 12608
diff changeset
   490
* theory Lift: proper use of rep_datatype lift instead of ML hacks --
12280
wenzelm
parents: 12253
diff changeset
   491
potential INCOMPATIBILITY; now use plain induct_tac instead of former
wenzelm
parents: 12253
diff changeset
   492
lift.induct_tac, always use UU instead of Undef;
12022
9c3377b133c0 HOLCF: proper rep_datatype lift (see theory Lift); use plain induct_tac
wenzelm
parents: 11995
diff changeset
   493
12597
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
   494
* HOLCF/IMP: updated and converted to new-style theory;
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
   495
12022
9c3377b133c0 HOLCF: proper rep_datatype lift (see theory Lift); use plain induct_tac
wenzelm
parents: 11995
diff changeset
   496
11474
wenzelm
parents: 11437
diff changeset
   497
*** ZF ***
wenzelm
parents: 11437
diff changeset
   498
12622
wenzelm
parents: 12608
diff changeset
   499
* Isar: proper integration of logic-specific tools and packages,
wenzelm
parents: 12608
diff changeset
   500
including theory commands '(co)inductive', '(co)datatype',
wenzelm
parents: 12608
diff changeset
   501
'rep_datatype', 'inductive_cases', as well as methods 'ind_cases',
wenzelm
parents: 12608
diff changeset
   502
'induct_tac', 'case_tac', and 'typecheck' (with attribute 'TC');
wenzelm
parents: 12608
diff changeset
   503
wenzelm
parents: 12608
diff changeset
   504
* theory Main no longer includes AC; for the Axiom of Choice, base
wenzelm
parents: 12608
diff changeset
   505
your theory on Main_ZFC;
wenzelm
parents: 12608
diff changeset
   506
wenzelm
parents: 12608
diff changeset
   507
* the integer library now covers quotients and remainders, with many
wenzelm
parents: 12608
diff changeset
   508
laws relating division to addition, multiplication, etc.;
12563
3813bcab493d ZF/Main
paulson
parents: 12538
diff changeset
   509
12280
wenzelm
parents: 12253
diff changeset
   510
* ZF/UNITY: Chandy and Misra's UNITY is now available in ZF, giving a
wenzelm
parents: 12253
diff changeset
   511
typeless version of the formalism;
wenzelm
parents: 12253
diff changeset
   512
13025
wenzelm
parents: 13023
diff changeset
   513
* ZF/AC, Coind, IMP, Resid: updated and converted to new-style theory
wenzelm
parents: 13023
diff changeset
   514
format;
12608
2df381faa787 * ZF/IMP: updated and converted to new-style theory format;
wenzelm
parents: 12597
diff changeset
   515
12280
wenzelm
parents: 12253
diff changeset
   516
* ZF/Induct: new directory for examples of inductive definitions,
12608
2df381faa787 * ZF/IMP: updated and converted to new-style theory format;
wenzelm
parents: 12597
diff changeset
   517
including theory Multiset for multiset orderings; converted to
2df381faa787 * ZF/IMP: updated and converted to new-style theory format;
wenzelm
parents: 12597
diff changeset
   518
new-style theory format;
12177
b1c16d685a99 * ZF: new-style theory commands 'inductive', 'inductive_cases', and
wenzelm
parents: 12163
diff changeset
   519
13025
wenzelm
parents: 13023
diff changeset
   520
* ZF: many new theorems about lists, ordinals, etc.;
12850
paulson
parents: 12837
diff changeset
   521
11474
wenzelm
parents: 11437
diff changeset
   522
wenzelm
parents: 11437
diff changeset
   523
*** General ***
wenzelm
parents: 11437
diff changeset
   524
12280
wenzelm
parents: 12253
diff changeset
   525
* Pure/kernel: meta-level proof terms (by Stefan Berghofer); reference
wenzelm
parents: 12253
diff changeset
   526
variable proof controls level of detail: 0 = no proofs (only oracle
wenzelm
parents: 12253
diff changeset
   527
dependencies), 1 = lemma dependencies, 2 = compact proof terms; see
wenzelm
parents: 12253
diff changeset
   528
also ref manual for further ML interfaces;
wenzelm
parents: 12253
diff changeset
   529
wenzelm
parents: 12253
diff changeset
   530
* Pure/axclass: removed obsolete ML interface
wenzelm
parents: 12253
diff changeset
   531
goal_subclass/goal_arity;
wenzelm
parents: 12253
diff changeset
   532
wenzelm
parents: 12253
diff changeset
   533
* Pure/syntax: new token syntax "num" for plain numerals (without "#"
wenzelm
parents: 12253
diff changeset
   534
of "xnum"); potential INCOMPATIBILITY, since -0, -1 etc. are now
wenzelm
parents: 12253
diff changeset
   535
separate tokens, so expressions involving minus need to be spaced
wenzelm
parents: 12253
diff changeset
   536
properly;
wenzelm
parents: 12253
diff changeset
   537
12312
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   538
* Pure/syntax: support non-oriented infixes, using keyword "infix"
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   539
rather than "infixl" or "infixr";
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   540
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   541
* Pure/syntax: concrete syntax for dummy type variables admits genuine
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   542
sort constraint specifications in type inference; e.g. "x::_::foo"
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   543
ensures that the type of "x" is of sort "foo" (but not necessarily a
f0f06950820d * Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents: 12280
diff changeset
   544
type variable);
12280
wenzelm
parents: 12253
diff changeset
   545
wenzelm
parents: 12253
diff changeset
   546
* Pure/syntax: print modes "type_brackets" and "no_type_brackets"
wenzelm
parents: 12253
diff changeset
   547
control output of nested => (types); the default behavior is
wenzelm
parents: 12253
diff changeset
   548
"type_brackets";
wenzelm
parents: 12253
diff changeset
   549
wenzelm
parents: 12253
diff changeset
   550
* Pure/syntax: builtin parse translation for "_constify" turns valued
11817
wenzelm
parents: 11814
diff changeset
   551
tokens into AST constants;
11474
wenzelm
parents: 11437
diff changeset
   552
12280
wenzelm
parents: 12253
diff changeset
   553
* Pure/syntax: prefer later declarations of translations and print
wenzelm
parents: 12253
diff changeset
   554
translation functions; potential INCOMPATIBILITY: need to reverse
wenzelm
parents: 12253
diff changeset
   555
multiple declarations for same syntax element constant;
wenzelm
parents: 12253
diff changeset
   556
12832
c31b44286a8a * Pure/show_hyps reset by default (in accordance to existing Isar practice);
wenzelm
parents: 12777
diff changeset
   557
* Pure/show_hyps reset by default (in accordance to existing Isar
c31b44286a8a * Pure/show_hyps reset by default (in accordance to existing Isar practice);
wenzelm
parents: 12777
diff changeset
   558
practice);
c31b44286a8a * Pure/show_hyps reset by default (in accordance to existing Isar practice);
wenzelm
parents: 12777
diff changeset
   559
12280
wenzelm
parents: 12253
diff changeset
   560
* Provers/classical: renamed addaltern to addafter, addSaltern to
wenzelm
parents: 12253
diff changeset
   561
addSafter;
wenzelm
parents: 12253
diff changeset
   562
wenzelm
parents: 12253
diff changeset
   563
* Provers/clasimp: ``iff'' declarations now handle conditional rules
wenzelm
parents: 12253
diff changeset
   564
as well;
12253
1886dc96b7e9 * HOL/record: cases/induct for more parts;
wenzelm
parents: 12245
diff changeset
   565
12538
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
   566
* system: tested support for MacOS X; should be able to get Isabelle +
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
   567
Proof General to work in a plain Terminal after installing Poly/ML
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
   568
(e.g. from the Isabelle distribution area) and GNU bash alone
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
   569
(e.g. from http://www.apple.com); full X11, XEmacs and X-Symbol
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
   570
support requires further installations, e.g. from
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
   571
http://fink.sourceforge.net/);
150af0a4bb11 * system: tested support for MacOS X;
wenzelm
parents: 12489
diff changeset
   572
12280
wenzelm
parents: 12253
diff changeset
   573
* system: support Poly/ML 4.1.1 (able to manage larger heaps);
11551
8b5064d1c5c9 * system: support Poly/ML 4.1.1 (large heaps);
wenzelm
parents: 11549
diff changeset
   574
12753
3a62df7ae926 * system: reduced base memory usage by Poly/ML (approx. 20 MB instead
wenzelm
parents: 12736
diff changeset
   575
* system: reduced base memory usage by Poly/ML (approx. 20 MB instead
3a62df7ae926 * system: reduced base memory usage by Poly/ML (approx. 20 MB instead
wenzelm
parents: 12736
diff changeset
   576
of 40 MB), cf. ML_OPTIONS;
3a62df7ae926 * system: reduced base memory usage by Poly/ML (approx. 20 MB instead
wenzelm
parents: 12736
diff changeset
   577
11633
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   578
* system: Proof General keywords specification is now part of the
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   579
Isabelle distribution (see etc/isar-keywords.el);
c8945e0dc00b *** empty log message ***
wenzelm
parents: 11611
diff changeset
   580
12728
wenzelm
parents: 12724
diff changeset
   581
* system: support for persistent Proof General sessions (refrain from
wenzelm
parents: 12724
diff changeset
   582
outdating all loaded theories on startup); user may create writable
wenzelm
parents: 12724
diff changeset
   583
logic images like this: ``isabelle -q HOL Test'';
12597
14822e4436bf HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents: 12587
diff changeset
   584
11551
8b5064d1c5c9 * system: support Poly/ML 4.1.1 (large heaps);
wenzelm
parents: 11549
diff changeset
   585
* system: smart selection of Isabelle process versus Isabelle
11572
wenzelm
parents: 11551
diff changeset
   586
interface, accommodates case-insensitive file systems (e.g. HFS+); may
wenzelm
parents: 11551
diff changeset
   587
run both "isabelle" and "Isabelle" even if file names are badly
wenzelm
parents: 11551
diff changeset
   588
damaged (executable inspects the case of the first letter of its own
wenzelm
parents: 11551
diff changeset
   589
name); added separate "isabelle-process" and "isabelle-interface";
11551
8b5064d1c5c9 * system: support Poly/ML 4.1.1 (large heaps);
wenzelm
parents: 11549
diff changeset
   590
12472
wenzelm
parents: 12467
diff changeset
   591
* system: refrain from any attempt at filtering input streams; no
wenzelm
parents: 12467
diff changeset
   592
longer support ``8bit'' encoding of old isabelle font, instead proper
wenzelm
parents: 12467
diff changeset
   593
iso-latin characters may now be used; the related isatools
wenzelm
parents: 12467
diff changeset
   594
"symbolinput" and "nonascii" have disappeared as well;
wenzelm
parents: 12467
diff changeset
   595
wenzelm
parents: 12467
diff changeset
   596
* system: removed old "xterm" interface (the print modes "xterm" and
wenzelm
parents: 12467
diff changeset
   597
"xterm_color" are still available for direct use in a suitable
wenzelm
parents: 12467
diff changeset
   598
terminal);
wenzelm
parents: 12467
diff changeset
   599
11314
f6eebbbed449 ZF: division
paulson
parents: 11307
diff changeset
   600
11169
98c2f741e32b made split_all_tac safe introducing safe_full_simp_tac, EXISTING PROOFS MAY FAIL
oheimb
parents: 11130
diff changeset
   601
11062
wenzelm
parents: 11050
diff changeset
   602
New in Isabelle99-2 (February 2001)
wenzelm
parents: 11050
diff changeset
   603
-----------------------------------
wenzelm
parents: 11050
diff changeset
   604
10224
7263c856787e *** empty log message ***
nipkow
parents: 10164
diff changeset
   605
*** Overview of INCOMPATIBILITIES ***
7263c856787e *** empty log message ***
nipkow
parents: 10164
diff changeset
   606
11241
61b21aacf04a Isar hint
paulson
parents: 11181
diff changeset
   607
* HOL: please note that theories in the Library and elsewhere often use the
61b21aacf04a Isar hint
paulson
parents: 11181
diff changeset
   608
new-style (Isar) format; to refer to their theorems in an ML script you must
12622
wenzelm
parents: 12608
diff changeset
   609
bind them to ML identifers by e.g.      val thm_name = thm "thm_name";
11241
61b21aacf04a Isar hint
paulson
parents: 11181
diff changeset
   610
11043
2e3bbac8763b HOL: inductive package no longer splits induction rule aggressively,
wenzelm
parents: 11016
diff changeset
   611
* HOL: inductive package no longer splits induction rule aggressively,
2e3bbac8763b HOL: inductive package no longer splits induction rule aggressively,
wenzelm
parents: 11016
diff changeset
   612
but only as far as specified by the introductions given; the old
11130
d14fd58615b9 added missiong word
oheimb
parents: 11124
diff changeset
   613
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
   614
'split_rule (complete)';
2e3bbac8763b HOL: inductive package no longer splits induction rule aggressively,
wenzelm
parents: 11016
diff changeset
   615
10998
wenzelm
parents: 10976
diff changeset
   616
* HOL: induct renamed to lfp_induct, lfp_Tarski to lfp_unfold,
wenzelm
parents: 10976
diff changeset
   617
gfp_Tarski to gfp_unfold;
10224
7263c856787e *** empty log message ***
nipkow
parents: 10164
diff changeset
   618
10288
00abecbfa46a contrapos
paulson
parents: 10245
diff changeset
   619
* HOL: contrapos, contrapos2 renamed to contrapos_nn, contrapos_pp;
00abecbfa46a contrapos
paulson
parents: 10245
diff changeset
   620
10858
wenzelm
parents: 10856
diff changeset
   621
* HOL: infix "dvd" now has priority 50 rather than 70 (because it is a
wenzelm
parents: 10856
diff changeset
   622
relation); infix "^^" has been renamed "``"; infix "``" has been
wenzelm
parents: 10856
diff changeset
   623
renamed "`"; "univalent" has been renamed "single_valued";
10793
4d6cf7702e3c *** empty log message ***
nipkow
parents: 10770
diff changeset
   624
10998
wenzelm
parents: 10976
diff changeset
   625
* HOL/Real: "rinv" and "hrinv" replaced by overloaded "inverse"
wenzelm
parents: 10976
diff changeset
   626
operation;
wenzelm
parents: 10976
diff changeset
   627
10868
5af3906edec8 *** empty log message ***
nipkow
parents: 10862
diff changeset
   628
* HOLCF: infix "`" has been renamed "$"; the symbol syntax is \<cdot>;
10856
e8a5340418b6 *** empty log message ***
nipkow
parents: 10799
diff changeset
   629
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   630
* Isar: 'obtain' no longer declares "that" fact as simp/intro;
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   631
10401
58bb50f69497 * Isar/HOL: method 'induct' now handles non-atomic goals; as a
wenzelm
parents: 10391
diff changeset
   632
* 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
   633
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
   634
(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
   635
10976
0e7cf6f9fa29 * Document preparation: renamed standard symbols \<ll> to \<lless> and
wenzelm
parents: 10966
diff changeset
   636
* Document preparation: renamed standard symbols \<ll> to \<lless> and
0e7cf6f9fa29 * Document preparation: renamed standard symbols \<ll> to \<lless> and
wenzelm
parents: 10966
diff changeset
   637
\<gg> to \<ggreater>;
0e7cf6f9fa29 * Document preparation: renamed standard symbols \<ll> to \<lless> and
wenzelm
parents: 10966
diff changeset
   638
10224
7263c856787e *** empty log message ***
nipkow
parents: 10164
diff changeset
   639
10245
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
   640
*** Document preparation ***
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
   641
10858
wenzelm
parents: 10856
diff changeset
   642
* \isabellestyle{NAME} selects version of Isabelle output (currently
wenzelm
parents: 10856
diff changeset
   643
available: are "it" for near math-mode best-style output, "sl" for
wenzelm
parents: 10856
diff changeset
   644
slanted text style, and "tt" for plain type-writer; if no
wenzelm
parents: 10856
diff changeset
   645
\isabellestyle command is given, output is according to slanted
wenzelm
parents: 10856
diff changeset
   646
type-writer);
wenzelm
parents: 10856
diff changeset
   647
10322
df38c61bf541 * support sub/super scripts (for single symbols only), input syntax is
wenzelm
parents: 10306
diff changeset
   648
* 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
   649
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
   650
10858
wenzelm
parents: 10856
diff changeset
   651
* some more standard symbols; see Appendix A of the system manual for
11062
wenzelm
parents: 11050
diff changeset
   652
the complete list of symbols defined in isabellesym.sty;
10858
wenzelm
parents: 10856
diff changeset
   653
10998
wenzelm
parents: 10976
diff changeset
   654
* improved isabelle style files; more abstract symbol implementation
wenzelm
parents: 10976
diff changeset
   655
(should now use \isamath{...} and \isatext{...} in custom symbol
wenzelm
parents: 10976
diff changeset
   656
definitions);
wenzelm
parents: 10976
diff changeset
   657
10634
wenzelm
parents: 10609
diff changeset
   658
* antiquotation @{goals} and @{subgoals} for output of *dynamic* goals
wenzelm
parents: 10609
diff changeset
   659
state; Note that presentation of goal states does not conform to
wenzelm
parents: 10609
diff changeset
   660
actual human-readable proof documents.  Please do not include goal
wenzelm
parents: 10609
diff changeset
   661
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
   662
11062
wenzelm
parents: 11050
diff changeset
   663
* proper indentation of antiquoted output with proportional LaTeX
wenzelm
parents: 11050
diff changeset
   664
fonts;
10862
857688d775b0 isatool unsymbolize;
wenzelm
parents: 10858
diff changeset
   665
11050
ac5709ac50b9 * no_document ML operator temporarily disables LaTeX document
wenzelm
parents: 11043
diff changeset
   666
* no_document ML operator temporarily disables LaTeX document
ac5709ac50b9 * no_document ML operator temporarily disables LaTeX document
wenzelm
parents: 11043
diff changeset
   667
generation;
ac5709ac50b9 * no_document ML operator temporarily disables LaTeX document
wenzelm
parents: 11043
diff changeset
   668
11062
wenzelm
parents: 11050
diff changeset
   669
* isatool unsymbolize tunes sources for plain ASCII communication;
wenzelm
parents: 11050
diff changeset
   670
10322
df38c61bf541 * support sub/super scripts (for single symbols only), input syntax is
wenzelm
parents: 10306
diff changeset
   671
10306
b0ab988a27a9 * HOL: default proof step now includes 'intro_classes';
wenzelm
parents: 10288
diff changeset
   672
*** Isar ***
b0ab988a27a9 * HOL: default proof step now includes 'intro_classes';
wenzelm
parents: 10288
diff changeset
   673
10547
wenzelm
parents: 10514
diff changeset
   674
* Pure: Isar now suffers initial goal statements to contain unbound
wenzelm
parents: 10514
diff changeset
   675
schematic variables (this does not conform to actual readable proof
wenzelm
parents: 10514
diff changeset
   676
documents, due to unpredictable outcome and non-compositional proof
wenzelm
parents: 10514
diff changeset
   677
checking); users who know what they are doing may use schematic goals
wenzelm
parents: 10514
diff changeset
   678
for Prolog-style synthesis of proven results;
wenzelm
parents: 10514
diff changeset
   679
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   680
* Pure: assumption method (an implicit finishing) now handles actual
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   681
rules as well;
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   682
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   683
* Pure: improved 'obtain' --- moved to Pure, insert "that" into
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   684
initial goal, declare "that" only as Pure intro (only for single
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   685
steps); the "that" rule assumption may now be involved in implicit
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   686
finishing, thus ".." becomes a feasible for trivial obtains;
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   687
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   688
* Pure: default proof step now includes 'intro_classes'; thus trivial
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   689
instance proofs may be performed by "..";
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   690
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   691
* Pure: ?thesis / ?this / "..." now work for pure meta-level
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   692
statements as well;
10306
b0ab988a27a9 * HOL: default proof step now includes 'intro_classes';
wenzelm
parents: 10288
diff changeset
   693
11097
c1be9f2dff4c more robust selection of calculational rules;
wenzelm
parents: 11094
diff changeset
   694
* Pure: more robust selection of calculational rules;
c1be9f2dff4c more robust selection of calculational rules;
wenzelm
parents: 11094
diff changeset
   695
10858
wenzelm
parents: 10856
diff changeset
   696
* Pure: the builtin notion of 'finished' goal now includes the ==-refl
wenzelm
parents: 10856
diff changeset
   697
rule (as well as the assumption rule);
wenzelm
parents: 10856
diff changeset
   698
wenzelm
parents: 10856
diff changeset
   699
* Pure: 'thm_deps' command visualizes dependencies of theorems and
wenzelm
parents: 10856
diff changeset
   700
lemmas, using the graph browser tool;
wenzelm
parents: 10856
diff changeset
   701
10944
710ddb9e8b5e *** empty log message ***
wenzelm
parents: 10915
diff changeset
   702
* Pure: predict failure of "show" in interactive mode;
710ddb9e8b5e *** empty log message ***
wenzelm
parents: 10915
diff changeset
   703
11016
8f8ba41a5e7a * Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents: 10998
diff changeset
   704
* Pure: 'thms_containing' now takes actual terms as arguments;
8f8ba41a5e7a * Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents: 10998
diff changeset
   705
10401
58bb50f69497 * Isar/HOL: method 'induct' now handles non-atomic goals; as a
wenzelm
parents: 10391
diff changeset
   706
* 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
   707
(potential INCOMPATIBILITY); tuned error handling;
58bb50f69497 * Isar/HOL: method 'induct' now handles non-atomic goals; as a
wenzelm
parents: 10391
diff changeset
   708
10557
wenzelm
parents: 10547
diff changeset
   709
* HOL: cases and induct rules now provide explicit hints about the
10547
wenzelm
parents: 10514
diff changeset
   710
number of facts to be consumed (0 for "type" and 1 for "set" rules);
wenzelm
parents: 10514
diff changeset
   711
any remaining facts are inserted into the goal verbatim;
wenzelm
parents: 10514
diff changeset
   712
10858
wenzelm
parents: 10856
diff changeset
   713
* HOL: local contexts (aka cases) may now contain term bindings as
wenzelm
parents: 10856
diff changeset
   714
well; the 'cases' and 'induct' methods new provide a ?case binding for
wenzelm
parents: 10856
diff changeset
   715
the result to be shown in each case;
wenzelm
parents: 10856
diff changeset
   716
10770
4858ad0b8f38 * Isar/HOL: added 'recdef_tc' command;
wenzelm
parents: 10756
diff changeset
   717
* HOL: added 'recdef_tc' command;
4858ad0b8f38 * Isar/HOL: added 'recdef_tc' command;
wenzelm
parents: 10756
diff changeset
   718
11016
8f8ba41a5e7a * Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents: 10998
diff changeset
   719
* isatool convert assists in eliminating legacy ML scripts;
8f8ba41a5e7a * Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents: 10998
diff changeset
   720
10306
b0ab988a27a9 * HOL: default proof step now includes 'intro_classes';
wenzelm
parents: 10288
diff changeset
   721
10245
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
   722
*** HOL ***
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
   723
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
   724
* 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
   725
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
   726
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
   727
HOL/Induct/Multiset, HOL/Induct/Acc (as Accessible_Part), HOL/While
10337
fca9cd9fd115 added HOL/Library/List_Prefix;
wenzelm
parents: 10322
diff changeset
   728
(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
   729
10966
8f2c27041a8e added HOL-Unix example;
wenzelm
parents: 10944
diff changeset
   730
* HOL/Unix: "Some aspects of Unix file-system security", a typical
8f2c27041a8e added HOL-Unix example;
wenzelm
parents: 10944
diff changeset
   731
modelling and verification task performed in Isabelle/HOL +
8f2c27041a8e added HOL-Unix example;
wenzelm
parents: 10944
diff changeset
   732
Isabelle/Isar + Isabelle document preparation (by Markus Wenzel).
8f2c27041a8e added HOL-Unix example;
wenzelm
parents: 10944
diff changeset
   733
11094
wenzelm
parents: 11091
diff changeset
   734
* HOL/Algebra: special summation operator SUM no longer exists, it has
wenzelm
parents: 11091
diff changeset
   735
been replaced by setsum; infix 'assoc' now has priority 50 (like
wenzelm
parents: 11091
diff changeset
   736
'dvd'); axiom 'one_not_zero' has been moved from axclass 'ring' to
wenzelm
parents: 11091
diff changeset
   737
'domain', this makes the theory consistent with mathematical
wenzelm
parents: 11091
diff changeset
   738
literature;
wenzelm
parents: 11091
diff changeset
   739
10514
3db037155f0e * HOL: syntax or "abs";
wenzelm
parents: 10474
diff changeset
   740
* HOL basics: added overloaded operations "inverse" and "divide"
10726
wenzelm
parents: 10664
diff changeset
   741
(infix "/"), syntax for generic "abs" operation, generic summation
11094
wenzelm
parents: 11091
diff changeset
   742
operator \<Sum>;
10452
abeefb0a79ae * added overloaded operations "inverse" and "divide" (infix "/");
wenzelm
parents: 10428
diff changeset
   743
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   744
* HOL/typedef: simplified package, provide more useful rules (see also
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   745
HOL/subset.thy);
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   746
10915
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
   747
* HOL/datatype: induction rule for arbitrarily branching datatypes is
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
   748
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
   749
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
   750
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
   751
* 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
   752
to "split_conv" (old name still available for compatibility);
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
   753
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
   754
* 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
   755
rules with string literals);
6b66a8a530ce * HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents: 10868
diff changeset
   756
12245
3dd9aae402bb Hyperreal
paulson
parents: 12210
diff changeset
   757
* HOL-Real-Hyperreal: this extends HOL-Real with the hyperreals
3dd9aae402bb Hyperreal
paulson
parents: 12210
diff changeset
   758
 and Fleuriot's mechanization of analysis, including the transcendental
3dd9aae402bb Hyperreal
paulson
parents: 12210
diff changeset
   759
 functions for the reals;
10756
831c864cc56e Hyperreal
paulson
parents: 10726
diff changeset
   760
11094
wenzelm
parents: 11091
diff changeset
   761
* HOL/Real, HOL/Hyperreal: improved arithmetic simplification;
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   762
10858
wenzelm
parents: 10856
diff changeset
   763
10474
paulson
parents: 10461
diff changeset
   764
*** CTT ***
paulson
parents: 10461
diff changeset
   765
10547
wenzelm
parents: 10514
diff changeset
   766
* CTT: x-symbol support for Pi, Sigma, -->, : (membership); note that
wenzelm
parents: 10514
diff changeset
   767
"lam" is displayed as TWO lambda-symbols
10474
paulson
parents: 10461
diff changeset
   768
10547
wenzelm
parents: 10514
diff changeset
   769
* CTT: theory Main now available, containing everything (that is, Bool
wenzelm
parents: 10514
diff changeset
   770
and Arith);
wenzelm
parents: 10514
diff changeset
   771
10474
paulson
parents: 10461
diff changeset
   772
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   773
*** General ***
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   774
10547
wenzelm
parents: 10514
diff changeset
   775
* Pure: the Simplifier has been implemented properly as a derived rule
wenzelm
parents: 10514
diff changeset
   776
outside of the actual kernel (at last!); the overall performance
wenzelm
parents: 10514
diff changeset
   777
penalty in practical applications is about 50%, while reliability of
wenzelm
parents: 10514
diff changeset
   778
the Isabelle inference kernel has been greatly improved;
wenzelm
parents: 10514
diff changeset
   779
11112
wenzelm
parents: 11097
diff changeset
   780
* print modes "brackets" and "no_brackets" control output of nested =>
wenzelm
parents: 11097
diff changeset
   781
(types) and ==> (props); the default behaviour is "brackets";
wenzelm
parents: 11097
diff changeset
   782
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   783
* Provers: fast_tac (and friends) now handle actual object-logic rules
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   784
as assumptions as well;
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   785
11124
5b97a468b46d isatool install handles KDE version 1 or 2;
wenzelm
parents: 11112
diff changeset
   786
* system: support Poly/ML 4.0;
5b97a468b46d isatool install handles KDE version 1 or 2;
wenzelm
parents: 11112
diff changeset
   787
5b97a468b46d isatool install handles KDE version 1 or 2;
wenzelm
parents: 11112
diff changeset
   788
* system: isatool install handles KDE version 1 or 2;
5b97a468b46d isatool install handles KDE version 1 or 2;
wenzelm
parents: 11112
diff changeset
   789
10391
0025fd11882c misc stuff;
wenzelm
parents: 10337
diff changeset
   790
10245
87771e2f49fe * HOL/Library: a collection of generic theories to be used together
wenzelm
parents: 10224
diff changeset
   791
10103
4e446f8cef3e Isabelle99-1 (October 2000);
wenzelm
parents: 10080
diff changeset
   792
New in Isabelle99-1 (October 2000)
4e446f8cef3e Isabelle99-1 (October 2000);
wenzelm
parents: 10080
diff changeset
   793
----------------------------------
8015
wenzelm
parents: 8014
diff changeset
   794
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   795
*** Overview of INCOMPATIBILITIES ***
8014
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
   796
8848
wenzelm
parents: 8832
diff changeset
   797
* HOL: simplification of natural numbers is much changed; to partly
wenzelm
parents: 8832
diff changeset
   798
recover the old behaviour (e.g. to prevent n+n rewriting to #2*n)
wenzelm
parents: 8832
diff changeset
   799
issue the following ML commands:
wenzelm
parents: 8832
diff changeset
   800
wenzelm
parents: 8832
diff changeset
   801
  Delsimprocs Nat_Numeral_Simprocs.cancel_numerals;
wenzelm
parents: 8832
diff changeset
   802
  Delsimprocs [Nat_Numeral_Simprocs.combine_numerals];
8788
518a5450ab6d simprocs
paulson
parents: 8736
diff changeset
   803
10129
a62b275ac0f7 improved t.weak_case_cong text;
wenzelm
parents: 10103
diff changeset
   804
* HOL: simplification no longer dives into case-expressions; this is
a62b275ac0f7 improved t.weak_case_cong text;
wenzelm
parents: 10103
diff changeset
   805
controlled by "t.weak_case_cong" for each datatype t;
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   806
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   807
* HOL: nat_less_induct renamed to less_induct;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   808
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   809
* HOL: systematic renaming of the SOME (Eps) rules, may use isatool
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   810
fixsome to patch .thy and .ML sources automatically;
8967
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
   811
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   812
  select_equality  -> some_equality
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   813
  select_eq_Ex     -> some_eq_ex
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   814
  selectI2EX       -> someI2_ex
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   815
  selectI2         -> someI2
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   816
  selectI          -> someI
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   817
  select1_equality -> some1_equality
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   818
  Eps_sym_eq       -> some_sym_eq_trivial
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   819
  Eps_eq           -> some_eq_trivial
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   820
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   821
* HOL: exhaust_tac on datatypes superceded by new generic case_tac;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   822
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   823
* HOL: removed obsolete theorem binding expand_if (refer to split_if
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   824
instead);
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   825
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   826
* HOL: the recursion equations generated by 'recdef' are now called
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   827
f.simps instead of f.rules;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   828
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   829
* HOL: qed_spec_mp now also handles bounded ALL as well;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   830
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   831
* HOL: 0 is now overloaded, so the type constraint ":: nat" may
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   832
sometimes be needed;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   833
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   834
* HOL: the constant for "f``x" is now "image" rather than "op ``";
8014
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
   835
10065
ddb3a014f721 renaming the inverse image operator in HOL
paulson
parents: 10003
diff changeset
   836
* 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
   837
9330
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
   838
* 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
   839
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
   840
now "<*lex*>" instead of "**";
8705
a3da5538d924 *** empty log message ***
nipkow
parents: 8673
diff changeset
   841
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   842
* 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
   843
of main HOL, but was unused); better use HOL's datatype package;
9971
e0164f01d55a renamed the select rules
paulson
parents: 9941
diff changeset
   844
10137
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
   845
* HOL: removed "symbols" syntax for constant "override" of theory Map;
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
   846
the old syntax may be recovered as follows:
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
   847
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
   848
  syntax (symbols)
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
   849
    override  :: "('a ~=> 'b) => ('a ~=> 'b) => ('a ~=> 'b)"
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
   850
      (infixl "\\<oplus>" 100)
d1c2bef01e2f removed "symbols" syntax for constant "override";
wenzelm
parents: 10129
diff changeset
   851
8848
wenzelm
parents: 8832
diff changeset
   852
* HOL/Real: "rabs" replaced by overloaded "abs" function;
wenzelm
parents: 8832
diff changeset
   853
8887
c0c583ce0b0b * HOL/ML: even fewer consts are declared as global (see theories Ord,
wenzelm
parents: 8848
diff changeset
   854
* 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
   855
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
   856
internally;
c0c583ce0b0b * HOL/ML: even fewer consts are declared as global (see theories Ord,
wenzelm
parents: 8848
diff changeset
   857
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   858
* HOL and ZF: syntax for quotienting wrt an equivalence relation
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   859
changed from A/r to A//r;
9908
7c7ff65b6846 HOL: qed_spec_mp now also removes bounded ALL;
wenzelm
parents: 9871
diff changeset
   860
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   861
* ZF: new treatment of arithmetic (nat & int) may break some old
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   862
proofs;
8921
7c04c98132c4 * Pure: changed syntax of local blocks from {{ }} to { };
wenzelm
parents: 8887
diff changeset
   863
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   864
* Isar: renamed some attributes (RS -> THEN, simplify -> simplified,
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   865
rulify -> rule_format, elimify -> elim_format, ...);
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
   866
9941
fe05af7ec816 renamed atts: rulify to rule_format, elimify to elim_format;
wenzelm
parents: 9937
diff changeset
   867
* Isar/Provers: intro/elim/dest attributes changed; renamed
fe05af7ec816 renamed atts: rulify to rule_format, elimify to elim_format;
wenzelm
parents: 9937
diff changeset
   868
intro/intro!/intro!! flags to intro!/intro/intro? (in most cases, one
9937
431c96ac997e replaced "delrule" by "rule del";
wenzelm
parents: 9908
diff changeset
   869
should have to change intro!! to intro? only); replaced "delrule" by
431c96ac997e replaced "delrule" by "rule del";
wenzelm
parents: 9908
diff changeset
   870
"rule del";
9437
93e91040c286 * Isar/Provers: intro/elim/dest attributes: changed
wenzelm
parents: 9402
diff changeset
   871
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
   872
* Isar/HOL: renamed "intrs" to "intros" in inductive definitions;
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
   873
9437
93e91040c286 * Isar/Provers: intro/elim/dest attributes: changed
wenzelm
parents: 9402
diff changeset
   874
* 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
   875
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   876
* LaTeX document preparation: several changes of isabelle.sty (see
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   877
lib/texinputs);
8729
094dbd0fad0c * improved name spaces: ambiguous output is qualified; support for
wenzelm
parents: 8705
diff changeset
   878
8014
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
   879
8487
5f3b0e02ec15 Isar: splitter support; improved diagnostics;
wenzelm
parents: 8440
diff changeset
   880
*** Document preparation ***
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
   881
9198
0ab3c81e9425 * formal comments (text blocks etc.) in new-style theories may now
wenzelm
parents: 9185
diff changeset
   882
* formal comments (text blocks etc.) in new-style theories may now
9753
wenzelm
parents: 9746
diff changeset
   883
contain antiquotations of thm/prop/term/typ/text to be presented
wenzelm
parents: 9746
diff changeset
   884
according to latex print mode; concrete syntax is like this:
wenzelm
parents: 9746
diff changeset
   885
@{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
   886
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
   887
* isatool mkdir provides easy setup of Isabelle session directories,
8518
wenzelm
parents: 8487
diff changeset
   888
including proper document sources;
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
   889
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
   890
* generated LaTeX sources are now deleted after successful run
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
   891
(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
   892
of isatool usedir;
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
   893
8566
30261b1917b5 usedir -D: update styles;
wenzelm
parents: 8534
diff changeset
   894
* 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
   895
style files, achieving self-contained LaTeX sources and simplifying
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   896
LaTeX debugging;
8566
30261b1917b5 usedir -D: update styles;
wenzelm
parents: 8534
diff changeset
   897
8518
wenzelm
parents: 8487
diff changeset
   898
* 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
   899
9057
af1ca1acf292 * browser info session directories are now self-contained (may be put
wenzelm
parents: 9052
diff changeset
   900
* 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
   901
on WWW server seperately); improved graphs of nested sessions; removed
93e91040c286 * Isar/Provers: intro/elim/dest attributes: changed
wenzelm
parents: 9402
diff changeset
   902
graph for 'all sessions';
9057
af1ca1acf292 * browser info session directories are now self-contained (may be put
wenzelm
parents: 9052
diff changeset
   903
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   904
* several improvements in isabelle style files; \isabellestyle{it}
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   905
produces fake math mode output; \isamarkupheader is now \section by
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   906
default; see lib/texinputs/isabelle.sty etc.;
9489
aa757b35b129 * blast(_tac) now handles actual object-logic rules as assumptions;
wenzelm
parents: 9457
diff changeset
   907
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
   908
8184
6b7ef9fc39da nat as names;
wenzelm
parents: 8015
diff changeset
   909
*** Isar ***
6b7ef9fc39da nat as names;
wenzelm
parents: 8015
diff changeset
   910
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   911
* Isar/Pure: local results and corresponding term bindings are now
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   912
subject to Hindley-Milner polymorphism (similar to ML); this
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   913
accommodates incremental type-inference very nicely;
8283
0a319c5746eb * Pure now provides its own version of intro/elim/dest attributes;
wenzelm
parents: 8271
diff changeset
   914
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   915
* Isar/Pure: new derived language element 'obtain' supports
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   916
generalized existence reasoning;
8621
8ba0f90f6f35 * Isar/Pure: local results and corresponding term bindings are now
wenzelm
parents: 8603
diff changeset
   917
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   918
* Isar/Pure: new calculational elements 'moreover' and 'ultimately'
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   919
support accumulation of results, without applying any rules yet;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   920
useful to collect intermediate results without explicit name
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   921
references, and for use with transitivity rules with more than 2
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   922
premises;
8184
6b7ef9fc39da nat as names;
wenzelm
parents: 8015
diff changeset
   923
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   924
* Isar/Pure: scalable support for case-analysis type proofs: new
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   925
'case' language element refers to local contexts symbolically, as
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   926
produced by certain proof methods; internally, case names are attached
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   927
to theorems as "tags";
8440
d66f0f14b1ca * HOL: exhaust_tac on datatypes superceded by new case_tac;
wenzelm
parents: 8425
diff changeset
   928
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   929
* Isar/Pure: theory command 'hide' removes declarations from
9330
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
   930
class/type/const name spaces;
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
   931
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   932
* 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
   933
indicate potential overloading;
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
   934
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   935
* 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
   936
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   937
* 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
   938
"{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
   939
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   940
* Isar/Pure now provides its own version of intro/elim/dest
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   941
attributes; useful for building new logics, but beware of confusion
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   942
with the version in Provers/classical;
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
   943
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   944
* 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
   945
case name 'antecedent';
8440
d66f0f14b1ca * HOL: exhaust_tac on datatypes superceded by new case_tac;
wenzelm
parents: 8425
diff changeset
   946
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   947
* Isar/Pure: removed obsolete 'transfer' attribute (transfer of thms
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   948
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
   949
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   950
* Isar/Pure: theory command 'method_setup' provides a simple interface
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   951
for definining proof methods in ML;
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
   952
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   953
* 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
   954
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
   955
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
   956
replaced "delrule" by "rule del";
8283
0a319c5746eb * Pure now provides its own version of intro/elim/dest attributes;
wenzelm
parents: 8271
diff changeset
   957
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   958
* Isar/Provers: new 'hypsubst' method, plain 'subst' method and
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   959
'symmetric' attribute (the latter supercedes [RS sym]);
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   960
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   961
* Isar/Provers: splitter support (via 'split' attribute and 'simp'
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   962
method modifier); 'simp' method: 'only:' modifier removes loopers as
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   963
well (including splits);
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   964
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   965
* Isar/Provers: Simplifier and Classical methods now support all kind
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   966
of modifiers used in the past, including 'cong', 'iff', etc.
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   967
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   968
* Isar/Provers: added 'fastsimp' and 'clarsimp' methods (combination
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   969
of Simplifier and Classical reasoner);
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   970
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   971
* Isar/HOL: new proof method 'cases' and improved version of 'induct'
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   972
now support named cases; major packages (inductive, datatype, primrec,
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   973
recdef) support case names and properly name parameters;
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
   974
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   975
* Isar/HOL: new transitivity rules for substitution in inequalities --
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   976
monotonicity conditions are extracted to be proven at end of
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   977
calculations;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   978
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   979
* Isar/HOL: removed 'case_split' thm binding, should use 'cases' proof
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   980
method anyway;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   981
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   982
* Isar/HOL: removed old expand_if = split_if; theorems if_splits =
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   983
split_if split_if_asm; datatype package provides theorems foo.splits =
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   984
foo.split foo.split_asm for each datatype;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   985
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   986
* Isar/HOL: tuned inductive package, rename "intrs" to "intros"
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   987
(potential INCOMPATIBILITY), emulation of mk_cases feature for proof
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   988
scripts: new 'inductive_cases' command and 'ind_cases' method; (Note:
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   989
use "(cases (simplified))" method in proper proof texts);
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   990
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   991
* Isar/HOL: added global 'arith_split' attribute for 'arith' method;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   992
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   993
* Isar: names of theorems etc. may be natural numbers as well;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   994
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   995
* Isar: 'pr' command: optional arguments for goals_limit and
9724
2030c5d63741 * 'pr' command: optional argument for ProofContext.prems_limit;
wenzelm
parents: 9709
diff changeset
   996
ProofContext.prems_limit; no longer prints theory contexts, but only
2030c5d63741 * 'pr' command: optional argument for ProofContext.prems_limit;
wenzelm
parents: 9709
diff changeset
   997
proof states;
8487
5f3b0e02ec15 Isar: splitter support; improved diagnostics;
wenzelm
parents: 8440
diff changeset
   998
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
   999
* Isar: diagnostic commands 'pr', 'thm', 'prop', 'term', 'typ' admit
8518
wenzelm
parents: 8487
diff changeset
  1000
additional print modes to be specified; e.g. "pr(latex)" will print
wenzelm
parents: 8487
diff changeset
  1001
proof state according to the Isabelle LaTeX style;
8487
5f3b0e02ec15 Isar: splitter support; improved diagnostics;
wenzelm
parents: 8440
diff changeset
  1002
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1003
* Isar: improved support for emulating tactic scripts, including proof
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1004
methods 'rule_tac' etc., 'cut_tac', 'thin_tac', 'subgoal_tac',
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1005
'rename_tac', 'rotate_tac', 'tactic', and 'case_tac' / 'induct_tac'
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1006
(for HOL datatypes);
8534
fdbabfbc3829 improved support for emulating tactic scripts;
wenzelm
parents: 8518
diff changeset
  1007
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1008
* Isar: simplified (more robust) goal selection of proof methods: 1st
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1009
goal, all goals, or explicit goal specifier (tactic emulation); thus
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1010
'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
  1011
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1012
* 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
  1013
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1014
* Isar: removed 'help' command, which hasn't been too helpful anyway;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1015
should instead use individual commands for printing items
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1016
(print_commands, print_methods etc.);
9224
0da360494917 * Isar: removed 'help' command, which hasn't been too helpful anyway;
wenzelm
parents: 9198
diff changeset
  1017
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1018
* Isar: added 'nothing' --- the empty list of theorems;
9239
b31c2132176a * added 'nothing' --- the empty list of theorems;
wenzelm
parents: 9229
diff changeset
  1019
8184
6b7ef9fc39da nat as names;
wenzelm
parents: 8015
diff changeset
  1020
8014
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
  1021
*** HOL ***
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
  1022
10080
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
  1023
* HOL/MicroJava: formalization of a fragment of Java, together with a
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
  1024
corresponding virtual machine and a specification of its bytecode
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
  1025
verifier and a lightweight bytecode verifier, including proofs of
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
  1026
type-safety; by Gerwin Klein, Tobias Nipkow, David von Oheimb, and
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
  1027
Cornelia Pusch (see also the homepage of project Bali at
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
  1028
http://isabelle.in.tum.de/Bali/);
8fb8c17d1cb5 HOL/MicroJava;
wenzelm
parents: 10065
diff changeset
  1029
8518
wenzelm
parents: 8487
diff changeset
  1030
* HOL/Algebra: new theory of rings and univariate polynomials, by
wenzelm
parents: 8487
diff changeset
  1031
Clemens Ballarin;
8014
fdf1281a3d0c HOL changes
paulson
parents: 8007
diff changeset
  1032
10157
6d3987f3aad9 * HOL/Lattice: fundamental concepts of lattice theory and order structures;
wenzelm
parents: 10137
diff changeset
  1033
* HOL/NumberTheory: fundamental Theorem of Arithmetic, Chinese
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1034
Remainder Theorem, Fermat/Euler Theorem, Wilson's Theorem, by Thomas M
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1035
Rasmussen;
8570
63d4f3ea2e70 HOL/ex/Multiquote;
wenzelm
parents: 8566
diff changeset
  1036
10157
6d3987f3aad9 * HOL/Lattice: fundamental concepts of lattice theory and order structures;
wenzelm
parents: 10137
diff changeset
  1037
* 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
  1038
structures, including duals, properties of bounds versus algebraic
6d3987f3aad9 * HOL/Lattice: fundamental concepts of lattice theory and order structures;
wenzelm
parents: 10137
diff changeset
  1039
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
  1040
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
  1041
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
  1042
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
  1043
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1044
* HOL/Prolog: a (bare-bones) implementation of Lambda-Prolog, by David
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1045
von Oheimb;
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
  1046
10164
c240747082aa * HOL/IMPP: extension of IMP with local variables and mutually
wenzelm
parents: 10157
diff changeset
  1047
* 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
  1048
recursive procedures, by David von Oheimb;
c240747082aa * HOL/IMPP: extension of IMP with local variables and mutually
wenzelm
parents: 10157
diff changeset
  1049
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1050
* HOL/Lambda: converted into new-style theory and document;
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
  1051
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1052
* HOL/ex/Multiquote: example of multiple nested quotations and
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1053
anti-quotations -- basically a generalized version of de-Bruijn
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1054
representation; very useful in avoiding lifting of operations;
8848
wenzelm
parents: 8832
diff changeset
  1055
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1056
* HOL/record: added general record equality rule to simpset; fixed
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1057
select-update simplification procedure to handle extended records as
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1058
well; admit "r" as field name;
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
  1059
8967
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
  1060
* HOL: 0 is now overloaded over the new sort "zero", allowing its use with
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
  1061
other numeric types and also as the identity of groups, rings, etc.;
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
  1062
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
  1063
* HOL: new axclass plus_ac0 for addition with the AC-laws and 0 as identity.
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
  1064
Types nat and int belong to this axclass;
00f18476ac15 overloading of 0
paulson
parents: 8925
diff changeset
  1065
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1066
* HOL: greatly improved simplification involving numerals of type nat, int, real:
8788
518a5450ab6d simprocs
paulson
parents: 8736
diff changeset
  1067
   (i + #8 + j) = Suc k simplifies to  #7 + (i + j) = k
8832
bcceda950cd0 more details
paulson
parents: 8788
diff changeset
  1068
   i*j + k + j*#3*i     simplifies to  #4*(i*j) + k
bcceda950cd0 more details
paulson
parents: 8788
diff changeset
  1069
  two terms #m*u and #n*u are replaced by #(m+n)*u
bcceda950cd0 more details
paulson
parents: 8788
diff changeset
  1070
    (where #m, #n and u can implicitly be 1; this is simproc combine_numerals)
bcceda950cd0 more details
paulson
parents: 8788
diff changeset
  1071
  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
  1072
    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
  1073
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1074
* 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
  1075
powerful prover for predicate logic but knows nothing of clasets; see
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1076
ex/mesontest.ML and ex/mesontest2.ML for example applications;
9835
543d23cd1259 meson_tac
paulson
parents: 9814
diff changeset
  1077
8848
wenzelm
parents: 8832
diff changeset
  1078
* 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
  1079
"exhaust_tac" on datatypes; INCOMPATIBILITY: exhaust_tac no longer
8518
wenzelm
parents: 8487
diff changeset
  1080
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
  1081
8848
wenzelm
parents: 8832
diff changeset
  1082
* HOL: simplification no longer dives into case-expressions: only the
10129
a62b275ac0f7 improved t.weak_case_cong text;
wenzelm
parents: 10103
diff changeset
  1083
selector expression is simplified, but not the remaining arms; to
a62b275ac0f7 improved t.weak_case_cong text;
wenzelm
parents: 10103
diff changeset
  1084
enable full simplification of case-expressions for datatype t, you may
a62b275ac0f7 improved t.weak_case_cong text;
wenzelm
parents: 10103
diff changeset
  1085
remove t.weak_case_cong from the simpset, either globally (Delcongs
a62b275ac0f7 improved t.weak_case_cong text;
wenzelm
parents: 10103
diff changeset
  1086
[thm"t.weak_case_cong"];) or locally (delcongs [...]).
8603
805910de7be0 *** empty log message ***
nipkow
parents: 8570
diff changeset
  1087
8848
wenzelm
parents: 8832
diff changeset
  1088
* HOL/recdef: the recursion equations generated by 'recdef' for
wenzelm
parents: 8832
diff changeset
  1089
function 'f' are now called f.simps instead of f.rules; if all
wenzelm
parents: 8832
diff changeset
  1090
termination conditions are proved automatically, these simplification
wenzelm
parents: 8832
diff changeset
  1091
rules are added to the simpset, as in primrec; rules may be named
wenzelm
parents: 8832
diff changeset
  1092
individually as well, resulting in a separate list of theorems for
wenzelm
parents: 8832
diff changeset
  1093
each equation;
wenzelm
parents: 8832
diff changeset
  1094
9489
aa757b35b129 * blast(_tac) now handles actual object-logic rules as assumptions;
wenzelm
parents: 9457
diff changeset
  1095
* 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
  1096
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
  1097
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
  1098
invariant proof rule for while is applied.
9457
966974a7a5b3 * HOL/While
nipkow
parents: 9437
diff changeset
  1099
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1100
* HOL: new (overloaded) notation for the set of elements below/above
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1101
some element: {..u}, {..u(}, {l..}, {)l..}. See theory SetInterval.
8925
f4599af94b83 SetInterval
nipkow
parents: 8921
diff changeset
  1102
8848
wenzelm
parents: 8832
diff changeset
  1103
* HOL: theorems impI, allI, ballI bound as "strip";
wenzelm
parents: 8832
diff changeset
  1104
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1105
* HOL: new tactic induct_thm_tac: thm -> string -> int -> tactic
9746
64b803edef39 *** empty log message ***
nipkow
parents: 9741
diff changeset
  1106
induct_tac th "x1 ... xn" expects th to have a conclusion of the form
64b803edef39 *** empty log message ***
nipkow
parents: 9741
diff changeset
  1107
P v1 ... vn and abbreviates res_inst_tac [("v1","x1"),...,("vn","xn")] th;
64b803edef39 *** empty log message ***
nipkow
parents: 9741
diff changeset
  1108
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1109
* HOL/Real: "rabs" replaced by overloaded "abs" function;
9737
7aae235675dc *** empty log message ***
nipkow
parents: 9724
diff changeset
  1110
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1111
* 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
  1112
main HOL, but was unused);
8626
nipkow
parents: 8621
diff changeset
  1113
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1114
* 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
  1115
"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
  1116
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1117
* HOL: tuned AST representation of nested pairs, avoiding bogus output
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1118
in case of overlap with user translations (e.g. judgements over
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1119
tuples); (note that the underlying logical represenation is still
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1120
bogus);
9349
d43669fb423d * tuned AST representation of nested pairs, avoiding bogus output in
wenzelm
parents: 9335
diff changeset
  1121
8412
65f9089f6f71 cases_tac
nipkow
parents: 8392
diff changeset
  1122
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
  1123
*** ZF ***
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
  1124
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1125
* ZF: simplification automatically cancels common terms in arithmetic
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1126
expressions over nat and int;
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
  1127
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1128
* ZF: new treatment of nat to minimize type-checking: all operators
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1129
coerce their operands to a natural number using the function natify,
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1130
making the algebraic laws unconditional;
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
  1131
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1132
* 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
  1133
using the function intify;
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
  1134
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1135
* 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
  1136
orderings, including $<=, and monotonicity laws for $+ and $*;
9542
fa19ffdbe1de ZF arith
paulson
parents: 9489
diff changeset
  1137
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1138
* ZF: new example ZF/ex/NatSum to demonstrate integer arithmetic
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1139
simplification;
9388
0b039a3575eb // change; also moved entry for AddIffs
paulson
parents: 9383
diff changeset
  1140
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1141
* 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
  1142
to the simplifier and classical reasoner simultaneously;
9388
0b039a3575eb // change; also moved entry for AddIffs
paulson
parents: 9383
diff changeset
  1143
0b039a3575eb // change; also moved entry for AddIffs
paulson
parents: 9383
diff changeset
  1144
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1145
*** General ***
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1146
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1147
* Provers: blast_tac now handles actual object-logic rules as
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1148
assumptions; note that auto_tac uses blast_tac internally as well;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1149
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1150
* Provers: new functions rulify/rulify_no_asm: thm -> thm for turning
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1151
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
  1152
9941
fe05af7ec816 renamed atts: rulify to rule_format, elimify to elim_format;
wenzelm
parents: 9937
diff changeset
  1153
* 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
  1154
explicit make_elim);
fe05af7ec816 renamed atts: rulify to rule_format, elimify to elim_format;
wenzelm
parents: 9937
diff changeset
  1155
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1156
* 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
  1157
  [| inj ?f;          ?f ?x = ?f ?y; ?x = ?y ==> ?W |] ==> ?W
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1158
use instead the strong form,
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1159
  [| inj ?f; ~ ?W ==> ?f ?x = ?f ?y; ?x = ?y ==> ?W |] ==> ?W
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1160
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
  1161
from destruct-rules;
9489
aa757b35b129 * blast(_tac) now handles actual object-logic rules as assumptions;
wenzelm
parents: 9457
diff changeset
  1162
9709
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
  1163
* Provers: Simplifier.easy_setup provides a fast path to basic
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
  1164
Simplifier setup for new object-logics;
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
  1165
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
  1166
* 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
  1167
9709
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
  1168
* Pure: improved name spaces: ambiguous output is qualified; support
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
  1169
for hiding of names;
8729
094dbd0fad0c * improved name spaces: ambiguous output is qualified; support for
wenzelm
parents: 8705
diff changeset
  1170
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1171
* system: smart setup of canonical ML_HOME, ISABELLE_INTERFACE, and
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1172
XSYMBOL_HOME; no longer need to do manual configuration in most
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1173
situations;
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1174
9709
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
  1175
* 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
  1176
option of isabelle and isatool usedir (currently only observed by
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
  1177
Poly/ML);
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1178
9981
01a0c4772c18 system: isatool installfonts may handle X-Symbol fonts as well;
wenzelm
parents: 9971
diff changeset
  1179
* 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
  1180
useful for remote X11);
01a0c4772c18 system: isatool installfonts may handle X-Symbol fonts as well;
wenzelm
parents: 9971
diff changeset
  1181
9709
2d0ee9612ef1 * Isar/Provers: 'simp' method now supports 'cong' modifiers;
wenzelm
parents: 9701
diff changeset
  1182
* system: provide TAGS file for Isabelle sources;
9052
7db48fe85b05 provide TAGS file for Isabelle sources;
wenzelm
parents: 9028
diff changeset
  1183
9288
06a55195741b infix 'OF' is a version of 'MRS' with more appropriate argument order;
wenzelm
parents: 9239
diff changeset
  1184
* 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
  1185
order;
06a55195741b infix 'OF' is a version of 'MRS' with more appropriate argument order;
wenzelm
parents: 9239
diff changeset
  1186
8994
803533fbb3ec * ML: renamed flags Syntax.trace_norm_ast to Syntax.trace_ast; global
wenzelm
parents: 8991
diff changeset
  1187
* 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
  1188
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
  1189
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1190
* ML: new combinators |>> and |>>> for incremental transformations
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1191
with secondary results (e.g. certain theory extensions):
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1192
9330
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
  1193
* 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
  1194
overloading (usually false);
6861e3b00155 HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents: 9288
diff changeset
  1195
10003
bd2ef19a0275 cleaned up and prepared for Isabelle99-1;
wenzelm
parents: 9981
diff changeset
  1196
* 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
  1197
results;
8440
d66f0f14b1ca * HOL: exhaust_tac on datatypes superceded by new case_tac;
wenzelm
parents: 8425
diff changeset
  1198
8358
a57d72b5d272 * isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents: 8283
diff changeset
  1199
8015
wenzelm
parents: 8014
diff changeset
  1200
7986
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1201
New in Isabelle99 (October 1999)
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1202
--------------------------------
4649
89ad3eb863a1 changed wrapper mechanism of classical reasoner
oheimb
parents: 4575
diff changeset
  1203
5931
325300576da7 Finally removing "Compl" from HOL
paulson
parents: 5781
diff changeset
  1204
*** Overview of INCOMPATIBILITIES (see below for more details) ***
325300576da7 Finally removing "Compl" from HOL
paulson
parents: 5781
diff changeset
  1205
6922
f5c5b81b3f14 integer division
paulson
parents: 6795
diff changeset
  1206
* HOL: The THEN and ELSE parts of conditional expressions (if P then x else y)
f5c5b81b3f14 integer division
paulson
parents: 6795
diff changeset
  1207
are no longer simplified.  (This allows the simplifier to unfold recursive
f5c5b81b3f14 integer division
paulson
parents: 6795
diff changeset
  1208
functional programs.)  To restore the old behaviour, declare
7215
wenzelm
parents: 7204
diff changeset
  1209
wenzelm
parents: 7204
diff changeset
  1210
    Delcongs [if_weak_cong];
6922
f5c5b81b3f14 integer division
paulson
parents: 6795
diff changeset
  1211
6269
wenzelm
parents: 6259
diff changeset
  1212
* HOL: Removed the obsolete syntax "Compl A"; use -A for set
wenzelm
parents: 6259
diff changeset
  1213
complement;
5931
325300576da7 Finally removing "Compl" from HOL
paulson
parents: 5781
diff changeset
  1214
6269
wenzelm
parents: 6259
diff changeset
  1215
* HOL: the predicate "inj" is now defined by translation to "inj_on";
6174
paulson
parents: 6157
diff changeset
  1216
7847
5a3fa0c4b215 Eliminated mutual_induct_tac.
berghofe
parents: 7805
diff changeset
  1217
* HOL/datatype: mutual_induct_tac no longer exists --
5a3fa0c4b215 Eliminated mutual_induct_tac.
berghofe
parents: 7805
diff changeset
  1218
  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
  1219
6386
e9e8af97f48f HOL/typedef: fixed type inference for representing set;
wenzelm
parents: 6343
diff changeset
  1220
* HOL/typedef: fixed type inference for representing set; type
e9e8af97f48f HOL/typedef: fixed type inference for representing set;
wenzelm
parents: 6343
diff changeset
  1221
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
  1222
6269
wenzelm
parents: 6259
diff changeset
  1223
* ZF: The con_defs part of an inductive definition may no longer refer
wenzelm
parents: 6259
diff changeset
  1224
to constants declared in the same theory;
6057
395ea7617554 *** empty log message ***
nipkow
parents: 6028
diff changeset
  1225
6269
wenzelm
parents: 6259
diff changeset
  1226
* HOL, ZF: the function mk_cases, generated by the inductive
wenzelm
parents: 6259
diff changeset
  1227
definition package, has lost an argument.  To simplify its result, it
wenzelm
parents: 6259
diff changeset
  1228
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
  1229
7215
wenzelm
parents: 7204
diff changeset
  1230
* HOL/List: the constructors of type list are now Nil and Cons;
wenzelm
parents: 7204
diff changeset
  1231
7619
d78b8b103fd9 incompatibility solver
nipkow
parents: 7595
diff changeset
  1232
* Simplifier: the type of the infix ML functions
8729
094dbd0fad0c * improved name spaces: ambiguous output is qualified; support for
wenzelm
parents: 8705
diff changeset
  1233
        setSSolver addSSolver setSolver addSolver
7619
d78b8b103fd9 incompatibility solver
nipkow
parents: 7595
diff changeset
  1234
is now  simpset * solver -> simpset  where `solver' is a new abstract type
d78b8b103fd9 incompatibility solver
nipkow
parents: 7595
diff changeset
  1235
for packaging solvers. A solver is created via
8729
094dbd0fad0c * improved name spaces: ambiguous output is qualified; support for
wenzelm
parents: 8705
diff changeset
  1236
        mk_solver: string -> (thm list -> int -> tactic) -> solver
7619
d78b8b103fd9 incompatibility solver
nipkow
parents: 7595
diff changeset
  1237
where the string argument is only a comment.
6057
395ea7617554 *** empty log message ***
nipkow
parents: 6028
diff changeset
  1238
7647
2ceddd91cd0a proper handling of dangling sort hypotheses (at last!);
wenzelm
parents: 7619
diff changeset
  1239
6069
a99879bd9f13 if-then-else syntax for ZF
paulson
parents: 6064
diff changeset
  1240
*** Proof tools ***
a99879bd9f13 if-then-else syntax for ZF
paulson
parents: 6064
diff changeset
  1241
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1242
* Provers/Arith/fast_lin_arith.ML contains a functor for creating a
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1243
decision procedure for linear arithmetic. Currently it is used for
7593
wenzelm
parents: 7492
diff changeset
  1244
types `nat', `int', and `real' in HOL (see below); it can, should and
wenzelm
parents: 7492
diff changeset
  1245
will be instantiated for other types and logics as well.
6069
a99879bd9f13 if-then-else syntax for ZF
paulson
parents: 6064
diff changeset
  1246
7324
6cb0d0202298 simplifier flex heads.
nipkow
parents: 7320
diff changeset
  1247
* The simplifier now accepts rewrite rules with flexible heads, eg
6cb0d0202298 simplifier flex heads.
nipkow
parents: 7320
diff changeset
  1248
     hom ?f ==> ?f(?x+?y) = ?f ?x + ?f ?y
6cb0d0202298 simplifier flex heads.
nipkow
parents: 7320
diff changeset
  1249
  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
  1250
  matching.
6069
a99879bd9f13 if-then-else syntax for ZF
paulson
parents: 6064
diff changeset
  1251
7593
wenzelm
parents: 7492
diff changeset
  1252
6014
bfd4923b0957 locales
paulson
parents: 5973
diff changeset
  1253
*** General ***
bfd4923b0957 locales
paulson
parents: 5973
diff changeset
  1254
7986
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1255
* New Isabelle/Isar subsystem provides an alternative to traditional
7215
wenzelm
parents: 7204
diff changeset
  1256
tactical theorem proving; together with the ProofGeneral/isar user
wenzelm
parents: 7204
diff changeset
  1257
interface it offers an interactive environment for developing human
wenzelm
parents: 7204
diff changeset
  1258
readable proof documents (Isar == Intelligible semi-automated
7886
8fa551e22e52 the settings environment is now statically scoped;
wenzelm
parents: 7863
diff changeset
  1259
reasoning); for further information see isatool doc isar-ref,
7986
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1260
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
  1261
9612
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1262
* improved and simplified presentation of theories: better HTML markup
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1263
(including colors), graph views in several sizes; isatool usedir now
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1264
provides a proper interface for user theories (via -P option); actual
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1265
document preparation based on (PDF)LaTeX is available as well (for
e6ba17cd012e Isar/Pure: renamed 'RS' attribute to 'THEN';
wenzelm
parents: 9577
diff changeset
  1266
new-style theories only); see isatool doc system for more information;
7215
wenzelm
parents: 7204
diff changeset
  1267
7252
d3ed595dd772 replaced 'ProofGeneral' by 'Proof General';
wenzelm
parents: 7238
diff changeset
  1268
* native support for Proof General, both for classic Isabelle and
7986
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1269
Isabelle/Isar;
7215
wenzelm
parents: 7204
diff changeset
  1270
7791
wenzelm
parents: 7780
diff changeset
  1271
* ML function thm_deps visualizes dependencies of theorems and lemmas,
wenzelm
parents: 7780
diff changeset
  1272
using the graph browser tool;
wenzelm
parents: 7780
diff changeset
  1273
6751
0e346c73828c Isabelle manuals now also available as PDF;
wenzelm
parents: 6671
diff changeset
  1274
* Isabelle manuals now also available as PDF;
0e346c73828c Isabelle manuals now also available as PDF;
wenzelm
parents: 6671
diff changeset
  1275
6449
d031cb5ea2fc loadpath replaced;
wenzelm
parents: 6420
diff changeset
  1276
* theory loader rewritten from scratch (may not be fully
d031cb5ea2fc loadpath replaced;
wenzelm
parents: 6420
diff changeset
  1277
bug-compatible); old loadpath variable has been replaced by show_path,
6671
wenzelm
parents: 6563
diff changeset
  1278
add_path, del_path, reset_path functions; new operations such as
7593
wenzelm
parents: 7492
diff changeset
  1279
update_thy, touch_thy, remove_thy, use/update_thy_only (see also
wenzelm
parents: 7492
diff changeset
  1280
isatool doc ref);
6449
d031cb5ea2fc loadpath replaced;
wenzelm
parents: 6420
diff changeset
  1281
7215
wenzelm
parents: 7204
diff changeset
  1282
* improved isatool install: option -k creates KDE application icon,
wenzelm
parents: 7204
diff changeset
  1283
option -p DIR installs standalone binaries;
wenzelm
parents: 7204
diff changeset
  1284
wenzelm
parents: 7204
diff changeset
  1285
* added ML_PLATFORM setting (useful for cross-platform installations);
wenzelm
parents: 7204
diff changeset
  1286
more robust handling of platform specific ML images for SML/NJ;
wenzelm
parents: 7204
diff changeset
  1287
7886
8fa551e22e52 the settings environment is now statically scoped;
wenzelm
parents: 7863
diff changeset
  1288
* the settings environment is now statically scoped, i.e. it is never
7986
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1289
created again in sub-processes invoked from isabelle, isatool, or
7886
8fa551e22e52 the settings environment is now statically scoped;
wenzelm
parents: 7863
diff changeset
  1290
Isabelle;
8fa551e22e52 the settings environment is now statically scoped;
wenzelm
parents: 7863
diff changeset
  1291
7215
wenzelm
parents: 7204
diff changeset
  1292
* path element specification '~~' refers to '$ISABELLE_HOME';
wenzelm
parents: 7204
diff changeset
  1293
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1294
* in locales, the "assumes" and "defines" parts may be omitted if
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1295
empty;
5973
040f6d2af50d removed prs / prs_fn;
wenzelm
parents: 5931
diff changeset
  1296
6269
wenzelm
parents: 6259
diff changeset
  1297
* new print_mode "xsymbols" for extended symbol support (e.g. genuine
wenzelm
parents: 6259
diff changeset
  1298
long arrows);
6259
488bdc1bd11a path element specification '~~' refers to '$ISABELLE_HOME';
wenzelm
parents: 6174
diff changeset
  1299
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1300
* new print_mode "HTML";
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1301
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1302
* new flag show_tags controls display of tags of theorems (which are
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1303
basically just comments that may be attached by some tools);
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1304
6461
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1305
* Isamode 2.6 requires patch to accomodate change of Isabelle font
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1306
mode and goal output format:
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1307
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1308
diff -r Isamode-2.6/elisp/isa-load.el Isamode/elisp/isa-load.el
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1309
244c244
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1310
<       (list (isa-getenv "ISABELLE") "-msymbols" logic-name)
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1311
---
6533
wenzelm
parents: 6482
diff changeset
  1312
>       (list (isa-getenv "ISABELLE") "-misabelle_font" "-msymbols" logic-name)
6461
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1313
diff -r Isabelle-2.6/elisp/isa-proofstate.el Isamode/elisp/isa-proofstate.el
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1314
181c181
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1315
< (defconst proofstate-proofstart-regexp "^Level [0-9]+$"
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1316
---
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1317
> (defconst proofstate-proofstart-regexp "^Level [0-9]+"
99c34e50a2c6 Isamode 2.6 requires patch;
wenzelm
parents: 6449
diff changeset
  1318
7450
e329ca03fd00 added bind_thms;
wenzelm
parents: 7444
diff changeset
  1319
* function bind_thms stores lists of theorems (cf. bind_thm);
e329ca03fd00 added bind_thms;
wenzelm
parents: 7444
diff changeset
  1320
7593
wenzelm
parents: 7492
diff changeset
  1321
* new shorthand tactics ftac, eatac, datac, fatac;
wenzelm
parents: 7492
diff changeset
  1322
wenzelm
parents: 7492
diff changeset
  1323
* qed (and friends) now accept "" as result name; in that case the
7986
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1324
theorem is not stored, but proper checks and presentation of the
9d319a76dbeb Isabelle99;
wenzelm
parents: 7919
diff changeset
  1325
result still apply;
7593
wenzelm
parents: 7492
diff changeset
  1326
7805
0ae9ddc36fe0 theorem database now also indexes constants "Trueprop", "all",
wenzelm
parents: 7791
diff changeset
  1327
* theorem database now also indexes constants "Trueprop", "all",
0ae9ddc36fe0 theorem database now also indexes constants "Trueprop", "all",
wenzelm
parents: 7791
diff changeset
  1328
"==>", "=="; thus thms_containing, findI etc. may retrieve more rules;
0ae9ddc36fe0 theorem database now also indexes constants "Trueprop", "all",
wenzelm
parents: 7791
diff changeset
  1329
6028
1bfd52528bde *** empty log message ***
oheimb
parents: 6014
diff changeset
  1330
6057
395ea7617554 *** empty log message ***
nipkow
parents: 6028
diff changeset
  1331
*** HOL ***
395ea7617554 *** empty log message ***
nipkow
parents: 6028
diff changeset
  1332
7215
wenzelm
parents: 7204
diff changeset
  1333
** HOL arithmetic **
wenzelm
parents: 7204
diff changeset
  1334
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1335
* There are now decision procedures for linear arithmetic over nat and
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1336
int:
6131
2d9e609abcdb More Arith.
nipkow
parents: 6070
diff changeset
  1337
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1338
1. arith_tac copes with arbitrary formulae involving `=', `<', `<=',
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1339
`+', `-', `Suc', `min', `max' and numerical constants; other subterms
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1340
are treated as atomic; subformulae not involving type `nat' or `int'
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1341
are ignored; quantified subformulae are ignored unless they are
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1342
positive universal or negative existential. The tactic has to be
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1343
invoked by hand and can be a little bit slow. In particular, the
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1344
running time is exponential in the number of occurrences of `min' and
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1345
`max', and `-' on `nat'.
6131
2d9e609abcdb More Arith.
nipkow
parents: 6070
diff changeset
  1346
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1347
2. fast_arith_tac is a cut-down version of arith_tac: it only takes
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1348
(negated) (in)equalities among the premises and the conclusion into
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1349
account (i.e. no compound formulae) and does not know about `min' and
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1350
`max', and `-' on `nat'. It is fast and is used automatically by the
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1351
simplifier.
6131
2d9e609abcdb More Arith.
nipkow
parents: 6070
diff changeset
  1352
6343
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1353
NB: At the moment, these decision procedures do not cope with mixed
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1354
nat/int formulae where the two parts interact, such as `m < n ==>
97c697a32b73 updated;
wenzelm
parents: 6278
diff changeset
  1355
int(m) < int(n)'.
6028
1bfd52528bde *** empty log message ***
oheimb
parents: 6014
diff changeset
  1356
7215
wenzelm
parents: 7204
diff changeset
  1357
* HOL/Numeral provides a generic theory of numerals (encoded
7313
300487ddfba9 real numerals;
wenzelm
parents: 7300
diff changeset
  1358
efficiently as bit strings); setup for types nat/int/real is in place;
7215
wenzelm
parents: 7204
diff changeset
  1359
INCOMPATIBILITY: since numeral syntax is now polymorphic, rather than
wenzelm
parents: 7204
diff changeset
  1360
int, existing theories and proof scripts may require a few additional
wenzelm
parents: 7204
diff changeset
  1361
type constraints;
wenzelm
parents: 7204
diff changeset
  1362
wenzelm
parents: 7204
diff changeset
  1363
* integer division and remainder can now be performed on constant
wenzelm
parents: 7204
diff changeset
  1364
arguments;
7157
paulson
parents: 7125
diff changeset
  1365
7215
wenzelm
parents: 7204
diff changeset
  1366
* many properties of integer multiplication, division and remainder
wenzelm
parents: 7204
diff changeset
  1367
are now available;
6922
f5c5b81b3f14 integer division
paulson
parents: 6795
diff changeset
  1368
7287
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1369
* An interface to the Stanford Validity Checker (SVC) is available through the
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1370
tactic svc_tac.  Propositional tautologies and theorems of linear arithmetic
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1371
are proved automatically.  SVC must be installed separately, and its results
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1372
must be TAKEN ON TRUST (Isabelle does not check the proofs, but tags any
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1373
invocation of the underlying oracle).  For SVC see
7444
ee17ad649c26 new SVC url
paulson
parents: 7420
diff changeset
  1374
  http://verify.stanford.edu/SVC
6922
f5c5b81b3f14 integer division
paulson
parents: 6795
diff changeset
  1375
7125
df7cf6e85501 HOL-Real target now builds an actual image;
wenzelm
parents: 7113
diff changeset
  1376
* IsaMakefile: the HOL-Real target now builds an actual image;
df7cf6e85501 HOL-Real target now builds an actual image;
wenzelm
parents: 7113
diff changeset
  1377
7215
wenzelm
parents: 7204
diff changeset
  1378
wenzelm
parents: 7204
diff changeset
  1379
** HOL misc **
wenzelm
parents: 7204
diff changeset
  1380
7595
5f5d575ddac3 * HOL/Real/HahnBanach: the Hahn-Banach theorem for real vector spaces
wenzelm
parents: 7593
diff changeset
  1381
* 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
  1382
(in Isabelle/Isar) -- by Gertrud Bauer;
5f5d575ddac3 * HOL/Real/HahnBanach: the Hahn-Banach theorem for real vector spaces
wenzelm
parents: 7593
diff changeset
  1383
7691
b7e8277fa088 added BVC;
wenzelm
parents: 7647
diff changeset
  1384
* HOL/BCV: generic model of bytecode verification, i.e. data-flow
b7e8277fa088 added BVC;
wenzelm
parents: 7647
diff changeset
  1385
analysis for assembly languages with subtypes;
b7e8277fa088 added BVC;
wenzelm
parents: 7647
diff changeset
  1386
6278
37b76155a49e Symbol.output subject to print mode;
wenzelm
parents: 6269
diff changeset
  1387
* HOL/TLA (Lamport's Temporal Logic of Actions): major reorganization
37b76155a49e Symbol.output subject to print mode;
wenzelm
parents: 6269
diff changeset
  1388
-- avoids syntactic ambiguities and treats state, transition, and
37b76155a49e Symbol.output subject to print mode;
wenzelm
parents: 6269
diff changeset
  1389
temporal levels more uniformly; introduces INCOMPATIBILITIES due to
37b76155a49e Symbol.output subject to print mode;
wenzelm
parents: 6269
diff changeset
  1390
changed syntax and (many) tactics;
37b76155a49e Symbol.output subject to print mode;
wenzelm
parents: 6269
diff changeset
  1391
7791
wenzelm
parents: 7780
diff changeset
  1392
* HOL/inductive: Now also handles more general introduction rules such
wenzelm
parents: 7780
diff changeset
  1393
  as "ALL y. (y, x) : r --> y : acc r ==> x : acc r"; monotonicity
wenzelm
parents: 7780
diff changeset
  1394
  theorems are now maintained within the theory (maintained via the
wenzelm
parents: 7780
diff changeset
  1395
  "mono" attribute);
7780
099742c562aa Documented changes to HOL/inductive and function thm_deps.
berghofe
parents: 7691
diff changeset
  1396
7238
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1397
* HOL/datatype: Now also handles arbitrarily branching datatypes
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1398
  (using function types) such as
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1399
36e58620ffc8 replaced HOL_quantifiers flag by "HOL" print mode;
wenzelm
parents: 7216
diff changeset
  1400
  datatype 'a tree = Atom 'a | Branch "nat => 'a tree"
7047
d103b875ef1d Datatype package now handles arbitrarily branching datatypes.
berghofe
parents: 6925
diff changeset
  1401
7326
a1555491a966 record_simproc;
wenzelm
parents: 7324
diff changeset
  1402
* HOL/record: record_simproc (part of the default simpset) takes care
a1555491a966 record_simproc;
wenzelm
parents: 7324
diff changeset
  1403
of selectors applied to updated records; record_split_tac is no longer
7327
wenzelm
parents: 7326
diff changeset
  1404
part of the default claset; update_defs may now be removed from the
wenzelm
parents: 7326
diff changeset
  1405
simpset in many cases; COMPATIBILITY: old behavior achieved by
7326
a1555491a966 record_simproc;
wenzelm
parents: 7324
diff changeset
  1406
a1555491a966 record_simproc;
wenzelm
parents: 7324
diff changeset
  1407
  claset_ref () := claset() addSWrapper record_split_wrapper;
a1555491a966 record_simproc;
wenzelm
parents: 7324
diff changeset
  1408
  Delsimprocs [record_simproc]
a1555491a966 record_simproc;
wenzelm
parents: 7324
diff changeset
  1409
6386
e9e8af97f48f HOL/typedef: fixed type inference for representing set;
wenzelm
parents: 6343
diff changeset
  1410
* HOL/typedef: fixed type inference for representing set; type
e9e8af97f48f HOL/typedef: fixed type inference for representing set;
wenzelm
parents: 6343
diff changeset
  1411
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
  1412
7287
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1413
* HOL/recdef (TFL): 'congs' syntax now expects comma separated list of theorem
d603a06b30df defer_recdef
paulson
parents: 7280
diff changeset
  1414
names rather than an ML expression;