NEWS
author wenzelm
Thu, 18 Sep 2008 20:12:02 +0200
changeset 28294 3ba048423a99
parent 28290 4cc2b6046258
child 28350 715163ec93c0
permissions -rw-r--r--
tuned;
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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 version
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----------------------------
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*** General ***
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* The Isabelle System Manual (system) has been updated, with formally
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checked references as hyperlinks.
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* Generalized Isar history, with support for linear undo, direct state
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addressing etc.
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* Recovered hiding of consts, which was accidentally broken in
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Isabelle2007.  Potential INCOMPATIBILITY, ``hide const c'' really
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makes c inaccessible; consider using ``hide (open) const c'' instead.
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* Removed exotic 'token_translation' command.  INCOMPATIBILITY, use ML
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interface instead.
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*** Pure ***
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* Changed defaults for unify configuration options:
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  unify_trace_bound = 50 (formerly 25)
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  unify_search_bound = 60 (formerly 30)
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* Different bookkeeping for code equations:
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  a) On theory merge, the last set of code equations for a particular constant
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     is taken (in accordance with the policy applied by other parts of the
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     code generator framework).
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  b) Code equations stemming from explicit declarations (e.g. code attribute)
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     gain priority over default code equations stemming from definition, primrec,
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     fun etc.
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  INCOMPATIBILITY.
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* Global versions of theorems stemming from classes do not carry
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a parameter prefix any longer.  INCOMPATIBILITY.
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* Dropped "locale (open)".  INCOMPATBILITY.
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* Interpretation commands no longer attempt to simplify goal.
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INCOMPATIBILITY: in rare situations the generated goal differs.  Use
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methods intro_locales and unfold_locales to clarify.
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* Interpretation commands no longer accept interpretation attributes.
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INCOMPATBILITY.
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* Command 'instance': attached definitions no longer accepted.
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INCOMPATIBILITY, use proper 'instantiation' target.
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* Keyword 'code_exception' now named 'code_abort'.  INCOMPATIBILITY.
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* The 'axiomatization' command now only works within a global theory
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context.  INCOMPATIBILITY.
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*** Document preparation ***
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19ae7064f00f @{lemma}: 'by' keyword;
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* Antiquotation @{lemma} now imitates a regular terminal proof,
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demanding keyword 'by' and supporting the full method expression
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syntax just like the Isar command 'by'.
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19ae7064f00f @{lemma}: 'by' keyword;
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*** HOL ***
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* HOL/Main: command "value" now integrates different evaluation
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mechanisms.  The result of the first successful evaluation mechanism
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is printed.  In square brackets a particular named evaluation
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mechanisms may be specified (currently, [SML], [code] or [nbe]).  See
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further src/HOL/ex/Eval_Examples.thy.
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* HOL/Orderings: class "wellorder" moved here, with explicit induction
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rule "less_induct" as assumption.  For instantiation of "wellorder" by
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means of predicate "wf", use rule wf_wellorderI.  INCOMPATIBILITY.
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* HOL/Orderings: added class "preorder" as superclass of "order".
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INCOMPATIBILITY: Instantiation proofs for order, linorder
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etc. slightly changed.  Some theorems named order_class.* now named
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preorder_class.*.
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* HOL/Ring_and_Field and HOL/Divides: Definition of "op dvd" has been
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moved to separate class dvd in Ring_and_Field; a couple of lemmas on
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dvd has been generalized to class comm_semiring_1.  Likewise a bunch
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of lemmas from Divides has been generalized from nat to class
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semiring_div.  INCOMPATIBILITY.  This involves the following theorem
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renames resulting from duplicate elimination:
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    dvd_def_mod ~>          dvd_eq_mod_eq_0
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    zero_dvd_iff ~>         dvd_0_left_iff
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    DIVISION_BY_ZERO_DIV ~> div_by_0
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    DIVISION_BY_ZERO_MOD ~> mod_by_0
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    mult_div ~>             div_mult_self2_is_id
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    mult_mod ~>             mod_mult_self2_is_0
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* HOL/Library/GCD: Curried operations gcd, lcm (for nat) and zgcd,
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zlcm (for int); carried together from various gcd/lcm developements in
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the HOL Distribution.  zgcd and zlcm replace former igcd and ilcm;
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corresponding theorems renamed accordingly.  INCOMPATIBILY.  To
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recover tupled syntax, use syntax declarations like:
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    hide (open) const gcd
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    abbreviation gcd where
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      "gcd == (%(a, b). GCD.gcd a b)"
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    notation (output)
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      GCD.gcd ("gcd '(_, _')")
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(analogously for lcm, zgcd, zlcm).
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* HOL/Real/Rational: 'Fract k 0' now equals '0'.  INCOMPATIBILITY.
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* New ML antiquotation @{code}: takes constant as argument, generates
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corresponding code in background and inserts name of the corresponding
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resulting ML value/function/datatype constructor binding in place.
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All occurrences of @{code} with a single ML block are generated
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simultaneously.  Provides a generic and safe interface for
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instrumentalizing code generation.  See HOL/ex/Code_Antiq for a toy
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example, or HOL/Complex/ex/ReflectedFerrack for a more ambitious
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application.  In future you ought refrain from ad-hoc compiling
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generated SML code on the ML toplevel.  Note that (for technical
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reasons) @{code} cannot refer to constants for which user-defined
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serializations are set.  Refer to the corresponding ML counterpart
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directly in that cases.
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* Integrated image HOL-Complex with HOL.  Entry points Main.thy and
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Complex_Main.thy remain as they are.
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* New image HOL-Plain provides a minimal HOL with the most important
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tools available (inductive, datatype, primrec, ...).  By convention
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the corresponding theory Plain should be ancestor of every further
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(library) theory.  Some library theories now have ancestor Plain
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(instead of Main), thus theory Main occasionally has to be imported
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explicitly.
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* The metis method now fails in the usual manner, rather than raising
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an exception, if it determines that it cannot prove the theorem.
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* Methods "case_tac" and "induct_tac" now refer to the very same rules
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as the structured Isar versions "cases" and "induct", cf. the
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corresponding "cases" and "induct" attributes.  Mutual induction rules
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are now presented as a list of individual projections
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(e.g. foo_bar.inducts for types foo and bar); the old format with
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explicit HOL conjunction is no longer supported.  INCOMPATIBILITY, in
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rare situations a different rule is selected --- notably nested tuple
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elimination instead of former prod.exhaust: use explicit (case_tac t
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rule: prod.exhaust) here.
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* Attributes "cases", "induct", "coinduct" support "del" option.
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* Removed fact "case_split_thm", which duplicates "case_split".
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* Command 'rep_datatype': instead of theorem names the command now
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   155
takes a list of terms denoting the constructors of the type to be
63d92a5e3784 proper news header;
wenzelm
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diff changeset
   156
represented as datatype.  The characteristic theorems have to be
63d92a5e3784 proper news header;
wenzelm
parents: 27104
diff changeset
   157
proven.  INCOMPATIBILITY.  Also observe that the following theorems
63d92a5e3784 proper news header;
wenzelm
parents: 27104
diff changeset
   158
have disappeared in favour of existing ones:
63d92a5e3784 proper news header;
wenzelm
parents: 27104
diff changeset
   159
27104
791607529f6d rep_datatype command now takes list of constructors as input arguments
haftmann
parents: 27067
diff changeset
   160
    unit_induct                 ~> unit.induct
791607529f6d rep_datatype command now takes list of constructors as input arguments
haftmann
parents: 27067
diff changeset
   161
    prod_induct                 ~> prod.induct
791607529f6d rep_datatype command now takes list of constructors as input arguments
haftmann
parents: 27067
diff changeset
   162
    sum_induct                  ~> sum.induct
791607529f6d rep_datatype command now takes list of constructors as input arguments
haftmann
parents: 27067
diff changeset
   163
    Suc_Suc_eq                  ~> nat.inject
791607529f6d rep_datatype command now takes list of constructors as input arguments
haftmann
parents: 27067
diff changeset
   164
    Suc_not_Zero Zero_not_Suc   ~> nat.distinct
791607529f6d rep_datatype command now takes list of constructors as input arguments
haftmann
parents: 27067
diff changeset
   165
27122
63d92a5e3784 proper news header;
wenzelm
parents: 27104
diff changeset
   166
* Library/Nat_Infinity: added addition, numeral syntax and more
63d92a5e3784 proper news header;
wenzelm
parents: 27104
diff changeset
   167
instantiations for algebraic structures.  Removed some duplicate
63d92a5e3784 proper news header;
wenzelm
parents: 27104
diff changeset
   168
theorems.  Changes in simp rules.  INCOMPATIBILITY.
27104
791607529f6d rep_datatype command now takes list of constructors as input arguments
haftmann
parents: 27067
diff changeset
   169
28088
723735f2d73a * Name bindings in higher specification mechanisms;
wenzelm
parents: 28085
diff changeset
   170
* ATP selection (E/Vampire/Spass) is now via Proof General's settings
723735f2d73a * Name bindings in higher specification mechanisms;
wenzelm
parents: 28085
diff changeset
   171
menu.
28067
4b6783d3f0d9 *** empty log message ***
nipkow
parents: 28058
diff changeset
   172
27104
791607529f6d rep_datatype command now takes list of constructors as input arguments
haftmann
parents: 27067
diff changeset
   173
27696
15b65db66751 Unit_inv_l, Unit_inv_r made [simp];
ballarin
parents: 27681
diff changeset
   174
*** HOL-Algebra ***
15b65db66751 Unit_inv_l, Unit_inv_r made [simp];
ballarin
parents: 27681
diff changeset
   175
27713
95b36bfe7fc4 New locales for orders and lattices where the equivalence relation is not restricted to equality.
ballarin
parents: 27704
diff changeset
   176
* New locales for orders and lattices where the equivalence relation
95b36bfe7fc4 New locales for orders and lattices where the equivalence relation is not restricted to equality.
ballarin
parents: 27704
diff changeset
   177
  is not restricted to equality.  INCOMPATIBILITY: all order and
95b36bfe7fc4 New locales for orders and lattices where the equivalence relation is not restricted to equality.
ballarin
parents: 27704
diff changeset
   178
  lattice locales use a record structure with field eq for the
95b36bfe7fc4 New locales for orders and lattices where the equivalence relation is not restricted to equality.
ballarin
parents: 27704
diff changeset
   179
  equivalence.
95b36bfe7fc4 New locales for orders and lattices where the equivalence relation is not restricted to equality.
ballarin
parents: 27704
diff changeset
   180
95b36bfe7fc4 New locales for orders and lattices where the equivalence relation is not restricted to equality.
ballarin
parents: 27704
diff changeset
   181
* New theory of factorial domains.
95b36bfe7fc4 New locales for orders and lattices where the equivalence relation is not restricted to equality.
ballarin
parents: 27704
diff changeset
   182
27696
15b65db66751 Unit_inv_l, Unit_inv_r made [simp];
ballarin
parents: 27681
diff changeset
   183
* Units_l_inv and Units_r_inv are now simprules by default.
15b65db66751 Unit_inv_l, Unit_inv_r made [simp];
ballarin
parents: 27681
diff changeset
   184
INCOMPATIBILITY.  Simplifier proof that require deletion of l_inv
15b65db66751 Unit_inv_l, Unit_inv_r made [simp];
ballarin
parents: 27681
diff changeset
   185
and/or r_inv will now also require deletion of these lemmas.
15b65db66751 Unit_inv_l, Unit_inv_r made [simp];
ballarin
parents: 27681
diff changeset
   186
15b65db66751 Unit_inv_l, Unit_inv_r made [simp];
ballarin
parents: 27681
diff changeset
   187
* Renamed the following theorems.  INCOMPATIBILITY.
15b65db66751 Unit_inv_l, Unit_inv_r made [simp];
ballarin
parents: 27681
diff changeset
   188
UpperD ~> Upper_memD
15b65db66751 Unit_inv_l, Unit_inv_r made [simp];
ballarin
parents: 27681
diff changeset
   189
LowerD ~> Lower_memD
15b65db66751 Unit_inv_l, Unit_inv_r made [simp];
ballarin
parents: 27681
diff changeset
   190
least_carrier ~> least_closed
15b65db66751 Unit_inv_l, Unit_inv_r made [simp];
ballarin
parents: 27681
diff changeset
   191
greatest_carrier ~> greatest_closed
15b65db66751 Unit_inv_l, Unit_inv_r made [simp];
ballarin
parents: 27681
diff changeset
   192
greatest_Lower_above ~> greatest_Lower_below
27717
21bbd410ba04 Generalised polynomial lemmas from cring to ring.
ballarin
parents: 27713
diff changeset
   193
one_zero ~> carrier_one_zero
21bbd410ba04 Generalised polynomial lemmas from cring to ring.
ballarin
parents: 27713
diff changeset
   194
one_not_zero ~> carrier_one_not_zero  (collision with assumption)
27696
15b65db66751 Unit_inv_l, Unit_inv_r made [simp];
ballarin
parents: 27681
diff changeset
   195
27793
29ad1d91a5a3 tuned formatting;
wenzelm
parents: 27761
diff changeset
   196
27485
a5de2cbf548f HOL-NSA
huffman
parents: 27436
diff changeset
   197
*** HOL-NSA ***
a5de2cbf548f HOL-NSA
huffman
parents: 27436
diff changeset
   198
a5de2cbf548f HOL-NSA
huffman
parents: 27436
diff changeset
   199
* Created new image HOL-NSA, containing theories of nonstandard
a5de2cbf548f HOL-NSA
huffman
parents: 27436
diff changeset
   200
analysis which were previously part of HOL-Complex.  Entry point
a5de2cbf548f HOL-NSA
huffman
parents: 27436
diff changeset
   201
Hyperreal.thy remains valid, but theories formerly using
a5de2cbf548f HOL-NSA
huffman
parents: 27436
diff changeset
   202
Complex_Main.thy should now use new entry point Hypercomplex.thy.
a5de2cbf548f HOL-NSA
huffman
parents: 27436
diff changeset
   203
a5de2cbf548f HOL-NSA
huffman
parents: 27436
diff changeset
   204
27704
5b1585b48952 Zorn's Lemma for partial orders.
ballarin
parents: 27696
diff changeset
   205
*** ZF ***
5b1585b48952 Zorn's Lemma for partial orders.
ballarin
parents: 27696
diff changeset
   206
5b1585b48952 Zorn's Lemma for partial orders.
ballarin
parents: 27696
diff changeset
   207
* Proof of Zorn's Lemma for partial orders.
5b1585b48952 Zorn's Lemma for partial orders.
ballarin
parents: 27696
diff changeset
   208
5b1585b48952 Zorn's Lemma for partial orders.
ballarin
parents: 27696
diff changeset
   209
27246
df85326af57c * Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents: 27200
diff changeset
   210
*** ML ***
28088
723735f2d73a * Name bindings in higher specification mechanisms;
wenzelm
parents: 28085
diff changeset
   211
28294
wenzelm
parents: 28290
diff changeset
   212
* Simplified ML oracle interface Thm.add_oracle promotes 'a -> cterm
wenzelm
parents: 28290
diff changeset
   213
to 'a -> thm, while results are always tagged with an authentic oracle
wenzelm
parents: 28290
diff changeset
   214
name.  The Isar command 'oracle' is now polymorphic, no argument type
wenzelm
parents: 28290
diff changeset
   215
is specified.  INCOMPATIBILITY, need to simplify existing oracle code
wenzelm
parents: 28290
diff changeset
   216
accordingly.  Note that extra performance may be gained by producing
wenzelm
parents: 28290
diff changeset
   217
the cterm carefully, avoiding slow Thm.cterm_of.
wenzelm
parents: 28290
diff changeset
   218
28282
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   219
* ML bindings produced via Isar commands are stored within the Isar
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   220
context (theory or proof).  Consequently, commands like 'use' and 'ML'
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   221
become thread-safe and work with undo as expected (concerning
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   222
top-level bindings, not side-effects on global references).
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   223
INCOMPATIBILITY, need to provide proper Isar context when invoking the
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   224
compiler at runtime; really global bindings need to be given outside a
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   225
theory. [Poly/ML 5.2 or later]
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   226
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   227
* Command 'ML_prf' is analogous to 'ML' but works within a proof
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   228
context. Top-level ML bindings are stored within the proof context in
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   229
a purely sequential fashion, disregarding the nested proof structure.
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   230
ML bindings introduced by 'ML_prf' are discarded at the end of the
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   231
proof.  [Poly/ML 5.2 or later]
44664ffc9725 * ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents: 28254
diff changeset
   232
28099
fb16a07d6580 * Generic Toplevel.add_hook interface allows to analyze the result of
wenzelm
parents: 28089
diff changeset
   233
* Generic Toplevel.add_hook interface allows to analyze the result of
28103
b79e61861f0f simplified Toplevel.add_hook: cover successful transactions only;
wenzelm
parents: 28099
diff changeset
   234
transactions.  E.g. see src/Pure/ProofGeneral/proof_general_pgip.ML
b79e61861f0f simplified Toplevel.add_hook: cover successful transactions only;
wenzelm
parents: 28099
diff changeset
   235
for theorem dependency output of transactions resulting in a new
b79e61861f0f simplified Toplevel.add_hook: cover successful transactions only;
wenzelm
parents: 28099
diff changeset
   236
theory state.
28099
fb16a07d6580 * Generic Toplevel.add_hook interface allows to analyze the result of
wenzelm
parents: 28089
diff changeset
   237
28088
723735f2d73a * Name bindings in higher specification mechanisms;
wenzelm
parents: 28085
diff changeset
   238
* Name bindings in higher specification mechanisms (notably
723735f2d73a * Name bindings in higher specification mechanisms;
wenzelm
parents: 28085
diff changeset
   239
LocalTheory.define, LocalTheory.note, and derived packages) are now
723735f2d73a * Name bindings in higher specification mechanisms;
wenzelm
parents: 28085
diff changeset
   240
formalized as type Name.binding, replacing old bstring.
723735f2d73a * Name bindings in higher specification mechanisms;
wenzelm
parents: 28085
diff changeset
   241
INCOMPATIBILITY, need to wrap strings via Name.binding function, see
723735f2d73a * Name bindings in higher specification mechanisms;
wenzelm
parents: 28085
diff changeset
   242
also Name.name_of.  Packages should pass name bindings given by the
723735f2d73a * Name bindings in higher specification mechanisms;
wenzelm
parents: 28085
diff changeset
   243
user to underlying specification mechanisms; this enables precise
723735f2d73a * Name bindings in higher specification mechanisms;
wenzelm
parents: 28085
diff changeset
   244
tracking of source positions, for example.
723735f2d73a * Name bindings in higher specification mechanisms;
wenzelm
parents: 28085
diff changeset
   245
28089
66ae1926482a * Result facts now refer to the *full* internal name;
wenzelm
parents: 28088
diff changeset
   246
* Result facts (from PureThy.note_thms, ProofContext.note_thms,
66ae1926482a * Result facts now refer to the *full* internal name;
wenzelm
parents: 28088
diff changeset
   247
LocalTheory.note etc.) now refer to the *full* internal name, not the
66ae1926482a * Result facts now refer to the *full* internal name;
wenzelm
parents: 28088
diff changeset
   248
bstring as before.  INCOMPATIBILITY, not detected by ML type-checking!
66ae1926482a * Result facts now refer to the *full* internal name;
wenzelm
parents: 28088
diff changeset
   249
27246
df85326af57c * Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents: 27200
diff changeset
   250
* Rules and tactics that read instantiations (read_instantiate,
df85326af57c * Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents: 27200
diff changeset
   251
res_inst_tac, thin_tac, subgoal_tac etc.) now demand a proper proof
df85326af57c * Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents: 27200
diff changeset
   252
context, which is required for parsing and type-checking.  Moreover,
df85326af57c * Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents: 27200
diff changeset
   253
the variables are specified as plain indexnames, not string encodings
df85326af57c * Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents: 27200
diff changeset
   254
thereof.  INCOMPATIBILITY.
df85326af57c * Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents: 27200
diff changeset
   255
27287
3b0d7a417a8b disposed Sign.read_typ etc;
wenzelm
parents: 27269
diff changeset
   256
* Disposed old type and term read functions (Sign.read_def_typ,
3b0d7a417a8b disposed Sign.read_typ etc;
wenzelm
parents: 27269
diff changeset
   257
Sign.read_typ, Sign.read_def_terms, Sign.read_term,
3b0d7a417a8b disposed Sign.read_typ etc;
wenzelm
parents: 27269
diff changeset
   258
Thm.read_def_cterms, Thm.read_cterm etc.).  INCOMPATIBILITY, should
3b0d7a417a8b disposed Sign.read_typ etc;
wenzelm
parents: 27269
diff changeset
   259
use regular Syntax.read_typ, Syntax.read_term, Syntax.read_typ_global,
27269
1e9c05cddc64 * Disposed old term read functions;
wenzelm
parents: 27246
diff changeset
   260
Syntax.read_term_global etc.; see also OldGoals.read_term as last
1e9c05cddc64 * Disposed old term read functions;
wenzelm
parents: 27246
diff changeset
   261
resort for legacy applications.
1e9c05cddc64 * Disposed old term read functions;
wenzelm
parents: 27246
diff changeset
   262
27380
ca505e7b7591 ML: improved antiquotations;
wenzelm
parents: 27324
diff changeset
   263
* Antiquotations: block-structured compilation context indicated by
27391
6c4649134fd6 additional ML antiquotations;
wenzelm
parents: 27381
diff changeset
   264
\<lbrace> ... \<rbrace>; additional antiquotation forms:
6c4649134fd6 additional ML antiquotations;
wenzelm
parents: 27381
diff changeset
   265
27519
59b54d80d2ae slightly improved @{lemma} (both for latex and ML);
wenzelm
parents: 27485
diff changeset
   266
  @{let ?pat = term}                      - term abbreviation (HO matching)
59b54d80d2ae slightly improved @{lemma} (both for latex and ML);
wenzelm
parents: 27485
diff changeset
   267
  @{note name = fact}                     - fact abbreviation
59b54d80d2ae slightly improved @{lemma} (both for latex and ML);
wenzelm
parents: 27485
diff changeset
   268
  @{thm fact}                             - singleton fact (with attributes)
59b54d80d2ae slightly improved @{lemma} (both for latex and ML);
wenzelm
parents: 27485
diff changeset
   269
  @{thms fact}                            - general fact (with attributes)
59b54d80d2ae slightly improved @{lemma} (both for latex and ML);
wenzelm
parents: 27485
diff changeset
   270
  @{lemma prop by method}                 - singleton goal
59b54d80d2ae slightly improved @{lemma} (both for latex and ML);
wenzelm
parents: 27485
diff changeset
   271
  @{lemma prop by meth1 meth2}            - singleton goal
59b54d80d2ae slightly improved @{lemma} (both for latex and ML);
wenzelm
parents: 27485
diff changeset
   272
  @{lemma prop1 ... propN by method}      - general goal
59b54d80d2ae slightly improved @{lemma} (both for latex and ML);
wenzelm
parents: 27485
diff changeset
   273
  @{lemma prop1 ... propN by meth1 meth2} - general goal
59b54d80d2ae slightly improved @{lemma} (both for latex and ML);
wenzelm
parents: 27485
diff changeset
   274
  @{lemma (open) ...}                     - open derivation
27380
ca505e7b7591 ML: improved antiquotations;
wenzelm
parents: 27324
diff changeset
   275
27246
df85326af57c * Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents: 27200
diff changeset
   276
27979
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   277
*** System ***
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   278
28254
d67ba23e0277 multithreading for Poly/ML 5.1 is no longer supported;
wenzelm
parents: 28252
diff changeset
   279
* Multithreading for Poly/ML 5.1 is no longer supported, only for
d67ba23e0277 multithreading for Poly/ML 5.1 is no longer supported;
wenzelm
parents: 28252
diff changeset
   280
Poly/ML 5.2 or later.
d67ba23e0277 multithreading for Poly/ML 5.1 is no longer supported;
wenzelm
parents: 28252
diff changeset
   281
28248
b2869ebcf8e3 separate emacs tool for Proof General / Emacs;
wenzelm
parents: 28233
diff changeset
   282
* The Isabelle "emacs" tool provides a specific interface to invoke
b2869ebcf8e3 separate emacs tool for Proof General / Emacs;
wenzelm
parents: 28233
diff changeset
   283
Proof General / Emacs, with more explicit failure if that is not
b2869ebcf8e3 separate emacs tool for Proof General / Emacs;
wenzelm
parents: 28233
diff changeset
   284
installed (the old isabelle-interface script silently falls back on
b2869ebcf8e3 separate emacs tool for Proof General / Emacs;
wenzelm
parents: 28233
diff changeset
   285
isabelle-process).  The PROOFGENERAL_HOME setting determines the
b2869ebcf8e3 separate emacs tool for Proof General / Emacs;
wenzelm
parents: 28233
diff changeset
   286
installation location of the Proof General distribution.
b2869ebcf8e3 separate emacs tool for Proof General / Emacs;
wenzelm
parents: 28233
diff changeset
   287
27979
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   288
* Isabelle/lib/classes/Pure.jar provides basic support to integrate
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   289
the Isabelle process into a JVM/Scala application.  See
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   290
Isabelle/lib/jedit/plugin for a minimal example.  (The obsolete Java
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   291
process wrapper has been discontinued.)
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   292
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   293
* Status messages (with exact source position information) are
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   294
emitted, if proper markup print mode is enabled.  This allows
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   295
user-interface components to provide detailed feedback on internal
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   296
prover operations.
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   297
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   298
* Homegrown Isabelle font with unicode layout, see Isabelle/lib/fonts.
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   299
58415a0de327 * Isabelle/lib/classes/Pure.jar;
wenzelm
parents: 27823
diff changeset
   300
27143
574a09bcdb02 tuned spacing;
wenzelm
parents: 27141
diff changeset
   301
27008
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   302
New in Isabelle2008 (June 2008)
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   303
-------------------------------
25464
0ca80ce89001 moved new NEWS from Isabelle2007 to this Isabelle version'';
wenzelm
parents: 25459
diff changeset
   304
25522
26851f8bdf14 \<chi> is now considered a letter;
wenzelm
parents: 25510
diff changeset
   305
*** General ***
26851f8bdf14 \<chi> is now considered a letter;
wenzelm
parents: 25510
diff changeset
   306
27061
a057cb0d7d55 reorganized isar-ref;
wenzelm
parents: 27008
diff changeset
   307
* The Isabelle/Isar Reference Manual (isar-ref) has been reorganized
a057cb0d7d55 reorganized isar-ref;
wenzelm
parents: 27008
diff changeset
   308
and updated, with formally checked references as hyperlinks.
a057cb0d7d55 reorganized isar-ref;
wenzelm
parents: 27008
diff changeset
   309
25994
d35484265f46 use_thy: do not set implicit ML context anymore;
wenzelm
parents: 25971
diff changeset
   310
* Theory loader: use_thy (and similar operations) no longer set the
d35484265f46 use_thy: do not set implicit ML context anymore;
wenzelm
parents: 25971
diff changeset
   311
implicit ML context, which was occasionally hard to predict and in
d35484265f46 use_thy: do not set implicit ML context anymore;
wenzelm
parents: 25971
diff changeset
   312
conflict with concurrency.  INCOMPATIBILITY, use ML within Isar which
d35484265f46 use_thy: do not set implicit ML context anymore;
wenzelm
parents: 25971
diff changeset
   313
provides a proper context already.
d35484265f46 use_thy: do not set implicit ML context anymore;
wenzelm
parents: 25971
diff changeset
   314
26323
73efc70edeef theory loader: discontinued *attached* ML scripts;
wenzelm
parents: 26315
diff changeset
   315
* Theory loader: old-style ML proof scripts being *attached* to a thy
73efc70edeef theory loader: discontinued *attached* ML scripts;
wenzelm
parents: 26315
diff changeset
   316
file are no longer supported.  INCOMPATIBILITY, regular 'uses' and
73efc70edeef theory loader: discontinued *attached* ML scripts;
wenzelm
parents: 26315
diff changeset
   317
'use' within a theory file will do the job.
73efc70edeef theory loader: discontinued *attached* ML scripts;
wenzelm
parents: 26315
diff changeset
   318
26650
f131f0fbf9cd * Name space merge now observes canonical order;
wenzelm
parents: 26575
diff changeset
   319
* Name space merge now observes canonical order, i.e. the second space
f131f0fbf9cd * Name space merge now observes canonical order;
wenzelm
parents: 26575
diff changeset
   320
is inserted into the first one, while existing entries in the first
26659
wenzelm
parents: 26650
diff changeset
   321
space take precedence.  INCOMPATIBILITY in rare situations, may try to
26650
f131f0fbf9cd * Name space merge now observes canonical order;
wenzelm
parents: 26575
diff changeset
   322
swap theory imports.
f131f0fbf9cd * Name space merge now observes canonical order;
wenzelm
parents: 26575
diff changeset
   323
27067
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   324
* Syntax: symbol \<chi> is now considered a letter.  Potential
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   325
INCOMPATIBILITY in identifier syntax etc.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   326
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   327
* Outer syntax: string tokens no longer admit escaped white space,
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   328
which was an accidental (undocumented) feature.  INCOMPATIBILITY, use
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   329
white space without escapes.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   330
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   331
* Outer syntax: string tokens may contain arbitrary character codes
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   332
specified via 3 decimal digits (as in SML).  E.g. "foo\095bar" for
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   333
"foo_bar".
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   334
25522
26851f8bdf14 \<chi> is now considered a letter;
wenzelm
parents: 25510
diff changeset
   335
25502
9200b36280c0 instance command as rudimentary class target
haftmann
parents: 25464
diff changeset
   336
*** Pure ***
9200b36280c0 instance command as rudimentary class target
haftmann
parents: 25464
diff changeset
   337
26718
0c652e82fdf4 * Context-dependent token translations.
wenzelm
parents: 26681
diff changeset
   338
* Context-dependent token translations.  Default setup reverts locally
0c652e82fdf4 * Context-dependent token translations.
wenzelm
parents: 26681
diff changeset
   339
fixed variables, and adds hilite markup for undeclared frees.
0c652e82fdf4 * Context-dependent token translations.
wenzelm
parents: 26681
diff changeset
   340
26681
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   341
* Unused theorems can be found using the new command 'unused_thms'.
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   342
There are three ways of invoking it:
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   343
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   344
(1) unused_thms
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   345
     Only finds unused theorems in the current theory.
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   346
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   347
(2) unused_thms thy_1 ... thy_n -
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   348
     Finds unused theorems in the current theory and all of its ancestors,
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   349
     excluding the theories thy_1 ... thy_n and all of their ancestors.
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   350
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   351
(3) unused_thms thy_1 ... thy_n - thy'_1 ... thy'_m
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   352
     Finds unused theorems in the theories thy'_1 ... thy'_m and all of
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   353
     their ancestors, excluding the theories thy_1 ... thy_n and all of
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   354
     their ancestors.
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   355
26718
0c652e82fdf4 * Context-dependent token translations.
wenzelm
parents: 26681
diff changeset
   356
In order to increase the readability of the list produced by
0c652e82fdf4 * Context-dependent token translations.
wenzelm
parents: 26681
diff changeset
   357
unused_thms, theorems that have been created by a particular instance
26874
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   358
of a theory command such as 'inductive' or 'function' are considered
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   359
to belong to the same "group", meaning that if at least one theorem in
26718
0c652e82fdf4 * Context-dependent token translations.
wenzelm
parents: 26681
diff changeset
   360
this group is used, the other theorems in the same group are no longer
0c652e82fdf4 * Context-dependent token translations.
wenzelm
parents: 26681
diff changeset
   361
reported as unused.  Moreover, if all theorems in the group are
0c652e82fdf4 * Context-dependent token translations.
wenzelm
parents: 26681
diff changeset
   362
unused, only one theorem in the group is displayed.
0c652e82fdf4 * Context-dependent token translations.
wenzelm
parents: 26681
diff changeset
   363
0c652e82fdf4 * Context-dependent token translations.
wenzelm
parents: 26681
diff changeset
   364
Note that proof objects have to be switched on in order for
0c652e82fdf4 * Context-dependent token translations.
wenzelm
parents: 26681
diff changeset
   365
unused_thms to work properly (i.e. !proofs must be >= 1, which is
26874
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   366
usually the case when using Proof General with the default settings).
26681
19e1d3c96f2f Added entry for unused_thms command.
berghofe
parents: 26660
diff changeset
   367
26650
f131f0fbf9cd * Name space merge now observes canonical order;
wenzelm
parents: 26575
diff changeset
   368
* Authentic naming of facts disallows ad-hoc overwriting of previous
f131f0fbf9cd * Name space merge now observes canonical order;
wenzelm
parents: 26575
diff changeset
   369
theorems within the same name space.  INCOMPATIBILITY, need to remove
f131f0fbf9cd * Name space merge now observes canonical order;
wenzelm
parents: 26575
diff changeset
   370
duplicate fact bindings, or even accidental fact duplications.  Note
f131f0fbf9cd * Name space merge now observes canonical order;
wenzelm
parents: 26575
diff changeset
   371
that tools may maintain dynamically scoped facts systematically, using
f131f0fbf9cd * Name space merge now observes canonical order;
wenzelm
parents: 26575
diff changeset
   372
PureThy.add_thms_dynamic.
f131f0fbf9cd * Name space merge now observes canonical order;
wenzelm
parents: 26575
diff changeset
   373
26660
f978a6f48949 added hide fact;
wenzelm
parents: 26659
diff changeset
   374
* Command 'hide' now allows to hide from "fact" name space as well.
f978a6f48949 added hide fact;
wenzelm
parents: 26659
diff changeset
   375
26496
49ae9456eba9 purely functional setup of claset/simpset/clasimpset;
wenzelm
parents: 26495
diff changeset
   376
* Eliminated destructive theorem database, simpset, claset, and
49ae9456eba9 purely functional setup of claset/simpset/clasimpset;
wenzelm
parents: 26495
diff changeset
   377
clasimpset.  Potential INCOMPATIBILITY, really need to observe linear
49ae9456eba9 purely functional setup of claset/simpset/clasimpset;
wenzelm
parents: 26495
diff changeset
   378
update of theories within ML code.
26479
3a2efce3e992 * Eliminated destructive theorem database.
wenzelm
parents: 26445
diff changeset
   379
26955
ebbaa935eae0 * Eliminated theory ProtoPure and CPure, leaving just one Pure theory.
wenzelm
parents: 26925
diff changeset
   380
* Eliminated theory ProtoPure and CPure, leaving just one Pure theory.
ebbaa935eae0 * Eliminated theory ProtoPure and CPure, leaving just one Pure theory.
wenzelm
parents: 26925
diff changeset
   381
INCOMPATIBILITY, object-logics depending on former Pure require
ebbaa935eae0 * Eliminated theory ProtoPure and CPure, leaving just one Pure theory.
wenzelm
parents: 26925
diff changeset
   382
additional setup PureThy.old_appl_syntax_setup; object-logics
ebbaa935eae0 * Eliminated theory ProtoPure and CPure, leaving just one Pure theory.
wenzelm
parents: 26925
diff changeset
   383
depending on former CPure need to refer to Pure.
26650
f131f0fbf9cd * Name space merge now observes canonical order;
wenzelm
parents: 26575
diff changeset
   384
26495
dd8996960cb0 fixed spelling;
wenzelm
parents: 26479
diff changeset
   385
* Commands 'use' and 'ML' are now purely functional, operating on
26479
3a2efce3e992 * Eliminated destructive theorem database.
wenzelm
parents: 26445
diff changeset
   386
theory/local_theory.  Removed former 'ML_setup' (on theory), use 'ML'
3a2efce3e992 * Eliminated destructive theorem database.
wenzelm
parents: 26445
diff changeset
   387
instead.  Added 'ML_val' as mere diagnostic replacement for 'ML'.
3a2efce3e992 * Eliminated destructive theorem database.
wenzelm
parents: 26445
diff changeset
   388
INCOMPATIBILITY.
3a2efce3e992 * Eliminated destructive theorem database.
wenzelm
parents: 26445
diff changeset
   389
26874
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   390
* Command 'setup': discontinued implicit version with ML reference.
26434
d004b791218e Command 'setup': discontinued implicit version.
wenzelm
parents: 26422
diff changeset
   391
25970
9053fd546501 * Default settings: PROOFGENERAL_OPTIONS no longer impose xemacs here;
wenzelm
parents: 25961
diff changeset
   392
* Instantiation target allows for simultaneous specification of class
9053fd546501 * Default settings: PROOFGENERAL_OPTIONS no longer impose xemacs here;
wenzelm
parents: 25961
diff changeset
   393
instance operations together with an instantiation proof.
9053fd546501 * Default settings: PROOFGENERAL_OPTIONS no longer impose xemacs here;
wenzelm
parents: 25961
diff changeset
   394
Type-checking phase allows to refer to class operations uniformly.
27067
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   395
See src/HOL/Complex/Complex.thy for an Isar example and
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   396
src/HOL/Library/Eval.thy for an ML example.
25502
9200b36280c0 instance command as rudimentary class target
haftmann
parents: 25464
diff changeset
   397
26201
d3363a854708 indexing literal facts: exclude background context;
wenzelm
parents: 26197
diff changeset
   398
* Indexing of literal facts: be more serious about including only
d3363a854708 indexing literal facts: exclude background context;
wenzelm
parents: 26197
diff changeset
   399
facts from the visible specification/proof context, but not the
d3363a854708 indexing literal facts: exclude background context;
wenzelm
parents: 26197
diff changeset
   400
background context (locale etc.).  Affects `prop` notation and method
d3363a854708 indexing literal facts: exclude background context;
wenzelm
parents: 26197
diff changeset
   401
"fact".  INCOMPATIBILITY: need to name facts explicitly in rare
d3363a854708 indexing literal facts: exclude background context;
wenzelm
parents: 26197
diff changeset
   402
situations.
d3363a854708 indexing literal facts: exclude background context;
wenzelm
parents: 26197
diff changeset
   403
26925
ce964f0df281 * Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents: 26920
diff changeset
   404
* Method "cases", "induct", "coinduct": removed obsolete/undocumented
ce964f0df281 * Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents: 26920
diff changeset
   405
"(open)" option, which used to expose internal bound variables to the
ce964f0df281 * Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents: 26920
diff changeset
   406
proof text.
ce964f0df281 * Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents: 26920
diff changeset
   407
ce964f0df281 * Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents: 26920
diff changeset
   408
* Isar statements: removed obsolete case "rule_context".
ce964f0df281 * Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents: 26920
diff changeset
   409
INCOMPATIBILITY, better use explicit fixes/assumes.
ce964f0df281 * Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents: 26920
diff changeset
   410
26874
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   411
* Locale proofs: default proof step now includes 'unfold_locales';
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   412
hence 'proof' without argument may be used to unfold locale
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   413
predicates.
26765
f2ea56490bfb unfold_locales part of default method.
ballarin
parents: 26762
diff changeset
   414
f2ea56490bfb unfold_locales part of default method.
ballarin
parents: 26762
diff changeset
   415
26762
78ed28528ca6 added lemma antiquotation
haftmann
parents: 26748
diff changeset
   416
*** Document preparation ***
78ed28528ca6 added lemma antiquotation
haftmann
parents: 26748
diff changeset
   417
26914
a4b7fe1068f9 * Simplified pdfsetup.sty;
wenzelm
parents: 26877
diff changeset
   418
* Simplified pdfsetup.sty: color/hyperref is used unconditionally for
a4b7fe1068f9 * Simplified pdfsetup.sty;
wenzelm
parents: 26877
diff changeset
   419
both pdf and dvi (hyperlinks usually work in xdvi as well); removed
a4b7fe1068f9 * Simplified pdfsetup.sty;
wenzelm
parents: 26877
diff changeset
   420
obsolete thumbpdf setup (contemporary PDF viewers do this on the
a4b7fe1068f9 * Simplified pdfsetup.sty;
wenzelm
parents: 26877
diff changeset
   421
spot); renamed link color from "darkblue" to "linkcolor" (default
26920
wenzelm
parents: 26914
diff changeset
   422
value unchanged, can be redefined via \definecolor); no longer sets
wenzelm
parents: 26914
diff changeset
   423
"a4paper" option (unnecessary or even intrusive).
26914
a4b7fe1068f9 * Simplified pdfsetup.sty;
wenzelm
parents: 26877
diff changeset
   424
27008
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   425
* Antiquotation @{lemma A method} proves proposition A by the given
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   426
method (either a method name or a method name plus (optional) method
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   427
arguments in parentheses) and prints A just like @{prop A}.
26762
78ed28528ca6 added lemma antiquotation
haftmann
parents: 26748
diff changeset
   428
78ed28528ca6 added lemma antiquotation
haftmann
parents: 26748
diff changeset
   429
25464
0ca80ce89001 moved new NEWS from Isabelle2007 to this Isabelle version'';
wenzelm
parents: 25459
diff changeset
   430
*** HOL ***
0ca80ce89001 moved new NEWS from Isabelle2007 to this Isabelle version'';
wenzelm
parents: 25459
diff changeset
   431
27067
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   432
* New primrec package.  Specification syntax conforms in style to
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   433
definition/function/....  No separate induction rule is provided.  The
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   434
"primrec" command distinguishes old-style and new-style specifications
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   435
by syntax.  The former primrec package is now named OldPrimrecPackage.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   436
When adjusting theories, beware: constants stemming from new-style
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   437
primrec specifications have authentic syntax.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   438
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   439
* Metis prover is now an order of magnitude faster, and also works
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   440
with multithreading.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   441
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   442
* Metis: the maximum number of clauses that can be produced from a
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   443
theorem is now given by the attribute max_clauses.  Theorems that
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   444
exceed this number are ignored, with a warning printed.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   445
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   446
* Sledgehammer no longer produces structured proofs by default. To
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   447
enable, declare [[sledgehammer_full = true]].  Attributes
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   448
reconstruction_modulus, reconstruction_sorts renamed
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   449
sledgehammer_modulus, sledgehammer_sorts.  INCOMPATIBILITY.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   450
27104
791607529f6d rep_datatype command now takes list of constructors as input arguments
haftmann
parents: 27067
diff changeset
   451
* Method "induct_scheme" derives user-specified induction rules
27067
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   452
from well-founded induction and completeness of patterns. This factors
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   453
out some operations that are done internally by the function package
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   454
and makes them available separately.  See
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   455
src/HOL/ex/Induction_Scheme.thy for examples.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   456
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   457
* More flexible generation of measure functions for termination
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   458
proofs: Measure functions can be declared by proving a rule of the
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   459
form "is_measure f" and giving it the [measure_function] attribute.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   460
The "is_measure" predicate is logically meaningless (always true), and
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   461
just guides the heuristic.  To find suitable measure functions, the
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   462
termination prover sets up the goal "is_measure ?f" of the appropriate
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   463
type and generates all solutions by prolog-style backwards proof using
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   464
the declared rules.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   465
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   466
This setup also deals with rules like 
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   467
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   468
  "is_measure f ==> is_measure (list_size f)"
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   469
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   470
which accommodates nested datatypes that recurse through lists.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   471
Similar rules are predeclared for products and option types.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   472
26964
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   473
* Turned the type of sets "'a set" into an abbreviation for "'a => bool"
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   474
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   475
  INCOMPATIBILITIES:
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   476
27008
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   477
  - Definitions of overloaded constants on sets have to be replaced by
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   478
    definitions on => and bool.
26964
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   479
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   480
  - Some definitions of overloaded operators on sets can now be proved
27008
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   481
    using the definitions of the operators on => and bool.  Therefore,
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   482
    the following theorems have been renamed:
26964
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   483
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   484
      subset_def   -> subset_eq
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   485
      psubset_def  -> psubset_eq
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   486
      set_diff_def -> set_diff_eq
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   487
      Compl_def    -> Compl_eq
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   488
      Sup_set_def  -> Sup_set_eq
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   489
      Inf_set_def  -> Inf_set_eq
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   490
      sup_set_def  -> sup_set_eq
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   491
      inf_set_def  -> inf_set_eq
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   492
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   493
  - Due to the incompleteness of the HO unification algorithm, some
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   494
    rules such as subst may require manual instantiation, if some of
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   495
    the unknowns in the rule is a set.
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   496
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   497
  - Higher order unification and forward proofs:
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   498
    The proof pattern
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   499
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   500
      have "P (S::'a set)" <...>
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   501
      then have "EX S. P S" ..
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   502
27008
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   503
    no longer works (due to the incompleteness of the HO unification
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   504
    algorithm) and must be replaced by the pattern
26964
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   505
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   506
      have "EX S. P S"
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   507
      proof
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   508
        show "P S" <...>
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   509
      qed
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   510
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   511
  - Calculational reasoning with subst (or similar rules):
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   512
    The proof pattern
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   513
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   514
      have "P (S::'a set)" <...>
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   515
      also have "S = T" <...>
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   516
      finally have "P T" .
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   517
27008
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   518
    no longer works (for similar reasons as the previous example) and
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   519
    must be replaced by something like
26964
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   520
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   521
      have "P (S::'a set)" <...>
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   522
      moreover have "S = T" <...>
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   523
      ultimately have "P T" by simp
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   524
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   525
  - Tactics or packages written in ML code:
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   526
    Code performing pattern matching on types via
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   527
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   528
      Type ("set", [T]) => ...
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   529
27008
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   530
    must be rewritten. Moreover, functions like strip_type or
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   531
    binder_types no longer return the right value when applied to a
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   532
    type of the form
26964
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   533
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   534
      T1 => ... => Tn => U => bool
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   535
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   536
    rather than
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   537
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   538
      T1 => ... => Tn => U set
df1f238a05f7 Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents: 26955
diff changeset
   539
26874
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   540
* Merged theories Wellfounded_Recursion, Accessible_Part and
27067
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   541
Wellfounded_Relations to theory Wellfounded.
26748
4d51ddd6aa5c Merged theories about wellfoundedness into one: Wellfounded.thy
krauss
parents: 26724
diff changeset
   542
26513
6f306c8c2c54 explicit class "eq" for operational equality
haftmann
parents: 26500
diff changeset
   543
* Explicit class "eq" for executable equality.  INCOMPATIBILITY.
6f306c8c2c54 explicit class "eq" for operational equality
haftmann
parents: 26500
diff changeset
   544
26874
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   545
* Class finite no longer treats UNIV as class parameter.  Use class
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   546
enum from theory Library/Enum instead to achieve a similar effect.
26445
17223cf843d8 explicit case names for rule list_induct2
haftmann
parents: 26434
diff changeset
   547
INCOMPATIBILITY.
17223cf843d8 explicit case names for rule list_induct2
haftmann
parents: 26434
diff changeset
   548
26874
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   549
* Theory List: rule list_induct2 now has explicitly named cases "Nil"
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   550
and "Cons".  INCOMPATIBILITY.
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   551
26422
d5883907c514 HOL (and FOL): renamed variables in rules imp_elim and swap;
wenzelm
parents: 26401
diff changeset
   552
* HOL (and FOL): renamed variables in rules imp_elim and swap.
d5883907c514 HOL (and FOL): renamed variables in rules imp_elim and swap;
wenzelm
parents: 26401
diff changeset
   553
Potential INCOMPATIBILITY.
d5883907c514 HOL (and FOL): renamed variables in rules imp_elim and swap;
wenzelm
parents: 26401
diff changeset
   554
26874
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   555
* Theory Product_Type: duplicated lemmas split_Pair_apply and
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   556
injective_fst_snd removed, use split_eta and prod_eqI instead.
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   557
Renamed upd_fst to apfst and upd_snd to apsnd.  INCOMPATIBILITY.
26355
9276633fdc24 Theory Product_Type; fixed typos
haftmann
parents: 26335
diff changeset
   558
26335
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   559
* Theory Nat: removed redundant lemmas that merely duplicate lemmas of
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   560
the same name in theory Orderings:
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   561
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   562
  less_trans
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   563
  less_linear
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   564
  le_imp_less_or_eq
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   565
  le_less_trans
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   566
  less_le_trans
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   567
  less_not_sym
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   568
  less_asym
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   569
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   570
Renamed less_imp_le to less_imp_le_nat, and less_irrefl to
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   571
less_irrefl_nat.  Potential INCOMPATIBILITY due to more general types
961bbcc9d85b removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents: 26333
diff changeset
   572
and different variable names.
26315
cb3badaa192e removed redundant less_trans, less_linear, le_imp_less_or_eq, le_less_trans, less_le_trans (cf. Orderings.thy);
wenzelm
parents: 26231
diff changeset
   573
26231
cd9d7f449369 added entries
haftmann
parents: 26222
diff changeset
   574
* Library/Option_ord.thy: Canonical order on option type.
cd9d7f449369 added entries
haftmann
parents: 26222
diff changeset
   575
27008
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   576
* Library/RBT.thy: Red-black trees, an efficient implementation of
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   577
finite maps.
26197
46e63f49c946 NEWS: RBTs, renamings in ZF
krauss
parents: 26188
diff changeset
   578
26231
cd9d7f449369 added entries
haftmann
parents: 26222
diff changeset
   579
* Library/Countable.thy: Type class for countable types.
cd9d7f449369 added entries
haftmann
parents: 26222
diff changeset
   580
26180
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   581
* Theory Int: The representation of numerals has changed.  The infix
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   582
operator BIT and the bit datatype with constructors B0 and B1 have
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   583
disappeared.  INCOMPATIBILITY, use "Int.Bit0 x" and "Int.Bit1 y" in
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   584
place of "x BIT bit.B0" and "y BIT bit.B1", respectively.  Theorems
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   585
involving BIT, B0, or B1 have been renamed with "Bit0" or "Bit1"
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   586
accordingly.
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   587
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   588
* Theory Nat: definition of <= and < on natural numbers no longer
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   589
depend on well-founded relations.  INCOMPATIBILITY.  Definitions
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   590
le_def and less_def have disappeared.  Consider lemmas not_less
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   591
[symmetric, where ?'a = nat] and less_eq [symmetric] instead.
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   592
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   593
* Theory Finite_Set: locales ACf, ACe, ACIf, ACIfSL and ACIfSLlin
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   594
(whose purpose mainly is for various fold_set functionals) have been
26874
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   595
abandoned in favor of the existing algebraic classes
26180
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   596
ab_semigroup_mult, comm_monoid_mult, ab_semigroup_idem_mult,
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   597
lower_semilattice (resp. upper_semilattice) and linorder.
26139
f7823a676ef7 added accidental omissions
haftmann
parents: 26086
diff changeset
   598
INCOMPATIBILITY.
26041
c2e15e65165f locales ACf, ACIf, ACIfSL and ACIfSLlin have been abandoned in favour of the existing algebraic classes ab_semigroup_mult, ab_semigroup_idem_mult, lower_semilattice (resp. uper_semilattice) and linorder
haftmann
parents: 26013
diff changeset
   599
26180
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   600
* Theory Transitive_Closure: induct and cases rules now declare proper
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   601
case_names ("base" and "step").  INCOMPATIBILITY.
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   602
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   603
* Theorem Inductive.lfp_ordinal_induct generalized to complete
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   604
lattices.  The form set-specific version is available as
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   605
Inductive.lfp_ordinal_induct_set.
26013
8764a1f1253b Theorem Inductive.lfp_ordinal_induct generalized to complete lattices
haftmann
parents: 26006
diff changeset
   606
26874
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   607
* Renamed theorems "power.simps" to "power_int.simps".
27067
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   608
INCOMPATIBILITY.
25961
ec39d7e40554 moved definition of power on ints to theory Int
haftmann
parents: 25942
diff changeset
   609
26180
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   610
* Class semiring_div provides basic abstract properties of semirings
25942
a52309ac4a4d added class semiring_div
haftmann
parents: 25919
diff changeset
   611
with division and modulo operations.  Subsumes former class dvd_mod.
a52309ac4a4d added class semiring_div
haftmann
parents: 25919
diff changeset
   612
26180
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   613
* Merged theories IntDef, Numeral and IntArith into unified theory
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   614
Int.  INCOMPATIBILITY.
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   615
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   616
* Theory Library/Code_Index: type "index" now represents natural
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   617
numbers rather than integers.  INCOMPATIBILITY.
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   618
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   619
* New class "uminus" with operation "uminus" (split of from class
cc85eaab20f6 Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents: 26139
diff changeset
   620
"minus" which now only has operation "minus", binary).
25919
8b1c0d434824 joined theories IntDef, Numeral, IntArith to theory Int
haftmann
parents: 25900
diff changeset
   621
INCOMPATIBILITY.
8b1c0d434824 joined theories IntDef, Numeral, IntArith to theory Int
haftmann
parents: 25900
diff changeset
   622
25522
26851f8bdf14 \<chi> is now considered a letter;
wenzelm
parents: 25510
diff changeset
   623
* Constants "card", "internal_split", "option_map" now with authentic
25919
8b1c0d434824 joined theories IntDef, Numeral, IntArith to theory Int
haftmann
parents: 25900
diff changeset
   624
syntax.  INCOMPATIBILITY.
25522
26851f8bdf14 \<chi> is now considered a letter;
wenzelm
parents: 25510
diff changeset
   625
26851f8bdf14 \<chi> is now considered a letter;
wenzelm
parents: 25510
diff changeset
   626
* Definitions subset_def, psubset_def, set_diff_def, Compl_def,
26851f8bdf14 \<chi> is now considered a letter;
wenzelm
parents: 25510
diff changeset
   627
le_bool_def, less_bool_def, le_fun_def, less_fun_def, inf_bool_def,
26851f8bdf14 \<chi> is now considered a letter;
wenzelm
parents: 25510
diff changeset
   628
sup_bool_def, Inf_bool_def, Sup_bool_def, inf_fun_def, sup_fun_def,
26851f8bdf14 \<chi> is now considered a letter;
wenzelm
parents: 25510
diff changeset
   629
Inf_fun_def, Sup_fun_def, inf_set_def, sup_set_def, Inf_set_def,
26851f8bdf14 \<chi> is now considered a letter;
wenzelm
parents: 25510
diff changeset
   630
Sup_set_def, le_def, less_def, option_map_def now with object
25919
8b1c0d434824 joined theories IntDef, Numeral, IntArith to theory Int
haftmann
parents: 25900
diff changeset
   631
equality.  INCOMPATIBILITY.
25464
0ca80ce89001 moved new NEWS from Isabelle2007 to this Isabelle version'';
wenzelm
parents: 25459
diff changeset
   632
25705
45a2ffc5911e replaced K_record by lambda term %x. c
schirmer
parents: 25664
diff changeset
   633
* Records. Removed K_record, and replaced it by pure lambda term
25726
9728f319ffc6 * Metis prover an order of magnitude faster, works with multithreading.
wenzelm
parents: 25712
diff changeset
   634
%x. c. The simplifier setup is now more robust against eta expansion.
25705
45a2ffc5911e replaced K_record by lambda term %x. c
schirmer
parents: 25664
diff changeset
   635
INCOMPATIBILITY: in cases explicitly referring to K_record.
25464
0ca80ce89001 moved new NEWS from Isabelle2007 to this Isabelle version'';
wenzelm
parents: 25459
diff changeset
   636
27067
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   637
* Library/Multiset: {#a, b, c#} abbreviates {#a#} + {#b#} + {#c#}.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   638
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   639
* Library/ListVector: new theory of arithmetic vector operations.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   640
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   641
* Library/Order_Relation: new theory of various orderings as sets of
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   642
pairs.  Defines preorders, partial orders, linear orders and
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   643
well-orders on sets and on types.
26877
c3bb1f397811 NEWS about measure functions
krauss
parents: 26874
diff changeset
   644
25726
9728f319ffc6 * Metis prover an order of magnitude faster, works with multithreading.
wenzelm
parents: 25712
diff changeset
   645
26197
46e63f49c946 NEWS: RBTs, renamings in ZF
krauss
parents: 26188
diff changeset
   646
*** ZF ***
46e63f49c946 NEWS: RBTs, renamings in ZF
krauss
parents: 26188
diff changeset
   647
26874
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   648
* Renamed some theories to allow to loading both ZF and HOL in the
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   649
same session:
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   650
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   651
  Datatype  -> Datatype_ZF
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   652
  Inductive -> Inductive_ZF
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   653
  Int       -> Int_ZF
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   654
  IntDiv    -> IntDiv_ZF
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   655
  Nat       -> Nat_ZF
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   656
  List      -> List_ZF
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   657
  Main      -> Main_ZF
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   658
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   659
INCOMPATIBILITY: ZF theories that import individual theories below
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   660
Main might need to be adapted.  Regular theory Main is still
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   661
available, as trivial extension of Main_ZF.
26197
46e63f49c946 NEWS: RBTs, renamings in ZF
krauss
parents: 26188
diff changeset
   662
46e63f49c946 NEWS: RBTs, renamings in ZF
krauss
parents: 26188
diff changeset
   663
25737
84c92fc48e36 ``print mode'' is now a thread-local value derived from a global template;
wenzelm
parents: 25726
diff changeset
   664
*** ML ***
84c92fc48e36 ``print mode'' is now a thread-local value derived from a global template;
wenzelm
parents: 25726
diff changeset
   665
27067
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   666
* ML within Isar: antiquotation @{const name} or @{const
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   667
name(typargs)} produces statically-checked Const term.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   668
26401
e7a94081dce7 Functor NamedThmsFun: data is available to the user as dynamic fact;
wenzelm
parents: 26387
diff changeset
   669
* Functor NamedThmsFun: data is available to the user as dynamic fact
26724
ff6ff3a9010e NamedThmsFun: removed obsolete print command -- facts are accesible via dynamic name;
wenzelm
parents: 26718
diff changeset
   670
(of the same name).  Removed obsolete print command.
26401
e7a94081dce7 Functor NamedThmsFun: data is available to the user as dynamic fact;
wenzelm
parents: 26387
diff changeset
   671
27067
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   672
* Removed obsolete "use_legacy_bindings" function.
26188
9cb1b484fe96 added @{const} antiquotation;
wenzelm
parents: 26180
diff changeset
   673
25737
84c92fc48e36 ``print mode'' is now a thread-local value derived from a global template;
wenzelm
parents: 25726
diff changeset
   674
* The ``print mode'' is now a thread-local value derived from a global
84c92fc48e36 ``print mode'' is now a thread-local value derived from a global template;
wenzelm
parents: 25726
diff changeset
   675
template (the former print_mode reference), thus access becomes
84c92fc48e36 ``print mode'' is now a thread-local value derived from a global template;
wenzelm
parents: 25726
diff changeset
   676
non-critical.  The global print_mode reference is for session
84c92fc48e36 ``print mode'' is now a thread-local value derived from a global template;
wenzelm
parents: 25726
diff changeset
   677
management only; user-code should use print_mode_value,
84c92fc48e36 ``print mode'' is now a thread-local value derived from a global template;
wenzelm
parents: 25726
diff changeset
   678
print_mode_active, PrintMode.setmp etc.  INCOMPATIBILITY.
84c92fc48e36 ``print mode'' is now a thread-local value derived from a global template;
wenzelm
parents: 25726
diff changeset
   679
26874
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   680
* Functions system/system_out provide a robust way to invoke external
27008
9e39f5403db7 misc tuning for Isabelle2008;
wenzelm
parents: 26964
diff changeset
   681
shell commands, with propagation of interrupts (requires Poly/ML 5.2).
26874
b2daa27fc0a7 misc tuning;
wenzelm
parents: 26765
diff changeset
   682
Do not use OS.Process.system etc. from the basis library!
26222
edf6473ac9e9 * system/system_out provides a robust way to invoke external shell
wenzelm
parents: 26218
diff changeset
   683
25737
84c92fc48e36 ``print mode'' is now a thread-local value derived from a global template;
wenzelm
parents: 25726
diff changeset
   684
25626
3000965b1fdf * isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents: 25609
diff changeset
   685
*** System ***
3000965b1fdf * isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents: 25609
diff changeset
   686
25971
wenzelm
parents: 25970
diff changeset
   687
* Default settings: PROOFGENERAL_OPTIONS no longer impose xemacs ---
wenzelm
parents: 25970
diff changeset
   688
in accordance with Proof General 3.7, which prefers GNU emacs.
25970
9053fd546501 * Default settings: PROOFGENERAL_OPTIONS no longer impose xemacs here;
wenzelm
parents: 25961
diff changeset
   689
25626
3000965b1fdf * isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents: 25609
diff changeset
   690
* isatool tty runs Isabelle process with plain tty interaction;
3000965b1fdf * isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents: 25609
diff changeset
   691
optional line editor may be specified via ISABELLE_LINE_EDITOR
3000965b1fdf * isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents: 25609
diff changeset
   692
setting, the default settings attempt to locate "ledit" and "rlwrap".
3000965b1fdf * isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents: 25609
diff changeset
   693
25651
6b2eb4e70ae3 * isatool browser now works with Cygwin;
wenzelm
parents: 25626
diff changeset
   694
* isatool browser now works with Cygwin as well, using general
6b2eb4e70ae3 * isatool browser now works with Cygwin;
wenzelm
parents: 25626
diff changeset
   695
"javapath" function defined in Isabelle process environment.
6b2eb4e70ae3 * isatool browser now works with Cygwin;
wenzelm
parents: 25626
diff changeset
   696
27067
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   697
* YXML notation provides a simple and efficient alternative to
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   698
standard XML transfer syntax.  See src/Pure/General/yxml.ML and
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   699
isatool yxml as described in the Isabelle system manual.
25651
6b2eb4e70ae3 * isatool browser now works with Cygwin;
wenzelm
parents: 25626
diff changeset
   700
25652
wenzelm
parents: 25651
diff changeset
   701
* JVM class isabelle.IsabelleProcess (located in Isabelle/lib/classes)
25651
6b2eb4e70ae3 * isatool browser now works with Cygwin;
wenzelm
parents: 25626
diff changeset
   702
provides general wrapper for managing an Isabelle process in a robust
6b2eb4e70ae3 * isatool browser now works with Cygwin;
wenzelm
parents: 25626
diff changeset
   703
fashion, with ``cooked'' output from stdin/stderr.
6b2eb4e70ae3 * isatool browser now works with Cygwin;
wenzelm
parents: 25626
diff changeset
   704
25855
3aa0d86b4398 * Rudimentary Isabelle plugin for jEdit;
wenzelm
parents: 25778
diff changeset
   705
* Rudimentary Isabelle plugin for jEdit (see Isabelle/lib/jedit),
3aa0d86b4398 * Rudimentary Isabelle plugin for jEdit;
wenzelm
parents: 25778
diff changeset
   706
based on Isabelle/JVM process wrapper (see Isabelle/lib/classes).
3aa0d86b4398 * Rudimentary Isabelle plugin for jEdit;
wenzelm
parents: 25778
diff changeset
   707
27067
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   708
* Removed obsolete THIS_IS_ISABELLE_BUILD feature.  NB: the documented
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   709
way of changing the user's settings is via
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   710
ISABELLE_HOME_USER/etc/settings, which is a fully featured bash
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   711
script.
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   712
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   713
* Multithreading.max_threads := 0 refers to the number of actual CPU
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   714
cores of the underlying machine, which is a good starting point for
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   715
optimal performance tuning.  The corresponding usedir option -M allows
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   716
"max" as an alias for "0".  WARNING: does not work on certain versions
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   717
of Mac OS (with Poly/ML 5.1).
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   718
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   719
* isabelle-process: non-ML sessions are run with "nice", to reduce the
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   720
adverse effect of Isabelle flooding interactive front-ends (notably
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   721
ProofGeneral / XEmacs).
f8a7aff41acb some reorganization and fine-tuning;
wenzelm
parents: 27061
diff changeset
   722
25626
3000965b1fdf * isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents: 25609
diff changeset
   723
25464
0ca80ce89001 moved new NEWS from Isabelle2007 to this Isabelle version'';
wenzelm
parents: 25459
diff changeset
   724
25429
wenzelm
parents: 25409
diff changeset
   725
New in Isabelle2007 (November 2007)
wenzelm
parents: 25409
diff changeset
   726
-----------------------------------
17754
58a306d9f736 * Command 'find_theorems': support * wildcard in name: criterion.
wenzelm
parents: 17725
diff changeset
   727
58a306d9f736 * Command 'find_theorems': support * wildcard in name: criterion.
wenzelm
parents: 17725
diff changeset
   728
*** General ***
58a306d9f736 * Command 'find_theorems': support * wildcard in name: criterion.
wenzelm
parents: 17725
diff changeset
   729
22826
0f4c501a691e explicit treatment of legacy_features;
wenzelm
parents: 22799
diff changeset
   730
* More uniform information about legacy features, notably a
0f4c501a691e explicit treatment of legacy_features;
wenzelm
parents: 22799
diff changeset
   731
warning/error of "Legacy feature: ...", depending on the state of the
23367
wenzelm
parents: 23300
diff changeset
   732
tolerate_legacy_features flag (default true). FUTURE INCOMPATIBILITY:
wenzelm
parents: 23300
diff changeset
   733
legacy features will disappear eventually.
22826
0f4c501a691e explicit treatment of legacy_features;
wenzelm
parents: 22799
diff changeset
   734
17918
93e26302733e * Theory syntax: discontinued non-Isar format and old Isar headers;
wenzelm
parents: 17890
diff changeset
   735
* Theory syntax: the header format ``theory A = B + C:'' has been
93e26302733e * Theory syntax: discontinued non-Isar format and old Isar headers;
wenzelm
parents: 17890
diff changeset
   736
discontinued in favour of ``theory A imports B C begin''.  Use isatool
93e26302733e * Theory syntax: discontinued non-Isar format and old Isar headers;
wenzelm
parents: 17890
diff changeset
   737
fixheaders to convert existing theory files.  INCOMPATIBILITY.
93e26302733e * Theory syntax: discontinued non-Isar format and old Isar headers;
wenzelm
parents: 17890
diff changeset
   738
93e26302733e * Theory syntax: discontinued non-Isar format and old Isar headers;
wenzelm
parents: 17890
diff changeset
   739
* Theory syntax: the old non-Isar theory file format has been
93e26302733e * Theory syntax: discontinued non-Isar format and old Isar headers;
wenzelm
parents: 17890
diff changeset
   740
discontinued altogether.  Note that ML proof scripts may still be used
93e26302733e * Theory syntax: discontinued non-Isar format and old Isar headers;
wenzelm
parents: 17890
diff changeset
   741
with Isar theories; migration is usually quite simple with the ML
93e26302733e * Theory syntax: discontinued non-Isar format and old Isar headers;
wenzelm
parents: 17890
diff changeset
   742
function use_legacy_bindings.  INCOMPATIBILITY.
93e26302733e * Theory syntax: discontinued non-Isar format and old Isar headers;
wenzelm
parents: 17890
diff changeset
   743
22871
wenzelm
parents: 22863
diff changeset
   744
* Theory syntax: some popular names (e.g. 'class', 'declaration',
wenzelm
parents: 22863
diff changeset
   745
'fun', 'help', 'if') are now keywords.  INCOMPATIBILITY, use double
wenzelm
parents: 22863
diff changeset
   746
quotes.
19814
faa698d46686 * Theory syntax: some popular names (e.g. "class", "if") are now keywords.
wenzelm
parents: 19783
diff changeset
   747
23888
babe337cce2d * Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents: 23881
diff changeset
   748
* Theory loader: be more serious about observing the static theory
babe337cce2d * Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents: 23881
diff changeset
   749
header specifications (including optional directories), but not the
24172
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
   750
accidental file locations of previously successful loads.  The strict
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
   751
update policy of former update_thy is now already performed by
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
   752
use_thy, so the former has been removed; use_thys updates several
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
   753
theories simultaneously, just as 'imports' within a theory header
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
   754
specification, but without merging the results.  Potential
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
   755
INCOMPATIBILITY: may need to refine theory headers and commands
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
   756
ROOT.ML which depend on load order.
23888
babe337cce2d * Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents: 23881
diff changeset
   757
babe337cce2d * Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents: 23881
diff changeset
   758
* Theory loader: optional support for content-based file
babe337cce2d * Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents: 23881
diff changeset
   759
identification, instead of the traditional scheme of full physical
23889
wenzelm
parents: 23888
diff changeset
   760
path plus date stamp; configured by the ISABELLE_FILE_IDENT setting
23888
babe337cce2d * Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents: 23881
diff changeset
   761
(cf. the system manual).  The new scheme allows to work with
babe337cce2d * Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents: 23881
diff changeset
   762
non-finished theories in persistent session images, such that source
babe337cce2d * Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents: 23881
diff changeset
   763
files may be moved later on without requiring reloads.
babe337cce2d * Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents: 23881
diff changeset
   764
24187
8bdf5ca5871f * Theory loader: old-style ML proof scripts are considered a legacy feature;
wenzelm
parents: 24172
diff changeset
   765
* Theory loader: old-style ML proof scripts being *attached* to a thy
8bdf5ca5871f * Theory loader: old-style ML proof scripts are considered a legacy feature;
wenzelm
parents: 24172
diff changeset
   766
file (with the same base name as the theory) are considered a legacy
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   767
feature, which will disappear eventually. Even now, the theory loader
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   768
no longer maintains dependencies on such files.
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   769
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   770
* Syntax: the scope for resolving ambiguities via type-inference is
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   771
now limited to individual terms, instead of whole simultaneous
24234
4714e04fb8e9 * Syntax: scope for resolving ambiguities via type-inference is now limited to individual terms;
wenzelm
parents: 24213
diff changeset
   772
specifications as before. This greatly reduces the complexity of the
4714e04fb8e9 * Syntax: scope for resolving ambiguities via type-inference is now limited to individual terms;
wenzelm
parents: 24213
diff changeset
   773
syntax module and improves flexibility by separating parsing and
4714e04fb8e9 * Syntax: scope for resolving ambiguities via type-inference is now limited to individual terms;
wenzelm
parents: 24213
diff changeset
   774
type-checking. INCOMPATIBILITY: additional type-constraints (explicit
4714e04fb8e9 * Syntax: scope for resolving ambiguities via type-inference is now limited to individual terms;
wenzelm
parents: 24213
diff changeset
   775
'fixes' etc.) are required in rare situations.
4714e04fb8e9 * Syntax: scope for resolving ambiguities via type-inference is now limited to individual terms;
wenzelm
parents: 24213
diff changeset
   776
25034
7f2e1a8e181b more on authentic syntax;
wenzelm
parents: 25033
diff changeset
   777
* Syntax: constants introduced by new-style packages ('definition',
7f2e1a8e181b more on authentic syntax;
wenzelm
parents: 25033
diff changeset
   778
'abbreviation' etc.) are passed through the syntax module in
7f2e1a8e181b more on authentic syntax;
wenzelm
parents: 25033
diff changeset
   779
``authentic mode''. This means that associated mixfix annotations
7f2e1a8e181b more on authentic syntax;
wenzelm
parents: 25033
diff changeset
   780
really stick to such constants, independently of potential name space
7f2e1a8e181b more on authentic syntax;
wenzelm
parents: 25033
diff changeset
   781
ambiguities introduced later on. INCOMPATIBILITY: constants in parse
7f2e1a8e181b more on authentic syntax;
wenzelm
parents: 25033
diff changeset
   782
trees are represented slightly differently, may need to adapt syntax
7f2e1a8e181b more on authentic syntax;
wenzelm
parents: 25033
diff changeset
   783
translations accordingly. Use CONST marker in 'translations' and
7f2e1a8e181b more on authentic syntax;
wenzelm
parents: 25033
diff changeset
   784
@{const_syntax} antiquotation in 'parse_translation' etc.
7f2e1a8e181b more on authentic syntax;
wenzelm
parents: 25033
diff changeset
   785
17981
2602be0d99ae * Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents: 17918
diff changeset
   786
* Legacy goal package: reduced interface to the bare minimum required
2602be0d99ae * Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents: 17918
diff changeset
   787
to keep existing proof scripts running.  Most other user-level
2602be0d99ae * Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents: 17918
diff changeset
   788
functions are now part of the OldGoals structure, which is *not* open
2602be0d99ae * Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents: 17918
diff changeset
   789
by default (consider isatool expandshort before open OldGoals).
2602be0d99ae * Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents: 17918
diff changeset
   790
Removed top_sg, prin, printyp, pprint_term/typ altogether, because
2602be0d99ae * Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents: 17918
diff changeset
   791
these tend to cause confusion about the actual goal (!) context being
2602be0d99ae * Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents: 17918
diff changeset
   792
used here, which is not necessarily the same as the_context().
17918
93e26302733e * Theory syntax: discontinued non-Isar format and old Isar headers;
wenzelm
parents: 17890
diff changeset
   793
23379
d0e3f790bd73 updated 'find_theorems' -- moved ProofGeneral specifics to ProofGeneral/CHANGES;
wenzelm
parents: 23377
diff changeset
   794
* Command 'find_theorems': supports "*" wild-card in "name:"
d0e3f790bd73 updated 'find_theorems' -- moved ProofGeneral specifics to ProofGeneral/CHANGES;
wenzelm
parents: 23377
diff changeset
   795
criterion; "with_dups" option.  Certain ProofGeneral versions might
d0e3f790bd73 updated 'find_theorems' -- moved ProofGeneral specifics to ProofGeneral/CHANGES;
wenzelm
parents: 23377
diff changeset
   796
support a specific search form (see ProofGeneral/CHANGES).
22965
b81bbe298406 ProofGeneral: Find Theorems search form
webertj
parents: 22921
diff changeset
   797
20370
217aada4f795 * ProofContext.prems_limit is now -1 by default;
wenzelm
parents: 20348
diff changeset
   798
* The ``prems limit'' option (cf. ProofContext.prems_limit) is now -1
217aada4f795 * ProofContext.prems_limit is now -1 by default;
wenzelm
parents: 20348
diff changeset
   799
by default, which means that "prems" (and also "fixed variables") are
217aada4f795 * ProofContext.prems_limit is now -1 by default;
wenzelm
parents: 20348
diff changeset
   800
suppressed from proof state output.  Note that the ProofGeneral
217aada4f795 * ProofContext.prems_limit is now -1 by default;
wenzelm
parents: 20348
diff changeset
   801
settings mechanism allows to change and save options persistently, but
217aada4f795 * ProofContext.prems_limit is now -1 by default;
wenzelm
parents: 20348
diff changeset
   802
older versions of Isabelle will fail to start up if a negative prems
217aada4f795 * ProofContext.prems_limit is now -1 by default;
wenzelm
parents: 20348
diff changeset
   803
limit is imposed.
217aada4f795 * ProofContext.prems_limit is now -1 by default;
wenzelm
parents: 20348
diff changeset
   804
21308
73883a528b26 * Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents: 21265
diff changeset
   805
* Local theory targets may be specified by non-nested blocks of
73883a528b26 * Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents: 21265
diff changeset
   806
``context/locale/class ... begin'' followed by ``end''.  The body may
73883a528b26 * Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents: 21265
diff changeset
   807
contain definitions, theorems etc., including any derived mechanism
73883a528b26 * Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents: 21265
diff changeset
   808
that has been implemented on top of these primitives.  This concept
73883a528b26 * Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents: 21265
diff changeset
   809
generalizes the existing ``theorem (in ...)'' towards more versatility
73883a528b26 * Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents: 21265
diff changeset
   810
and scalability.
73883a528b26 * Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents: 21265
diff changeset
   811
21960
0574f192b78a * Proof General: proper undo of final 'end'; discontinued Isabelle/classic;
wenzelm
parents: 21896
diff changeset
   812
* Proof General interface: proper undo of final 'end' command;
0574f192b78a * Proof General: proper undo of final 'end'; discontinued Isabelle/classic;
wenzelm
parents: 21896
diff changeset
   813
discontinued Isabelle/classic mode (ML proof scripts).
0574f192b78a * Proof General: proper undo of final 'end'; discontinued Isabelle/classic;
wenzelm
parents: 21896
diff changeset
   814
17754
58a306d9f736 * Command 'find_theorems': support * wildcard in name: criterion.
wenzelm
parents: 17725
diff changeset
   815
17865
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
   816
*** Document preparation ***
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
   817
21717
410ca6910f6f added antiquotation abbrev;
wenzelm
parents: 21647
diff changeset
   818
* Added antiquotation @{theory name} which prints the given name,
410ca6910f6f added antiquotation abbrev;
wenzelm
parents: 21647
diff changeset
   819
after checking that it refers to a valid ancestor theory in the
410ca6910f6f added antiquotation abbrev;
wenzelm
parents: 21647
diff changeset
   820
current context.
21339
b59f7cca0b0c added antiquotation theory
haftmann
parents: 21320
diff changeset
   821
17869
wenzelm
parents: 17865
diff changeset
   822
* Added antiquotations @{ML_type text} and @{ML_struct text} which
wenzelm
parents: 17865
diff changeset
   823
check the given source text as ML type/structure, printing verbatim.
17865
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
   824
21717
410ca6910f6f added antiquotation abbrev;
wenzelm
parents: 21647
diff changeset
   825
* Added antiquotation @{abbrev "c args"} which prints the abbreviation
410ca6910f6f added antiquotation abbrev;
wenzelm
parents: 21647
diff changeset
   826
"c args == rhs" given in the current context.  (Any number of
21735
0c65e072f4be added print_abbrevs;
wenzelm
parents: 21717
diff changeset
   827
arguments may be given on the LHS.)
21717
410ca6910f6f added antiquotation abbrev;
wenzelm
parents: 21647
diff changeset
   828
410ca6910f6f added antiquotation abbrev;
wenzelm
parents: 21647
diff changeset
   829
17779
407bea05c2da added dummy variable binding;
wenzelm
parents: 17754
diff changeset
   830
*** Pure ***
407bea05c2da added dummy variable binding;
wenzelm
parents: 17754
diff changeset
   831
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   832
* The 'class' package offers a combination of axclass and locale to
25129
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   833
achieve Haskell-like type classes in Isabelle.  Definitions and
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   834
theorems within a class context produce both relative results (with
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   835
implicit parameters according to the locale context), and polymorphic
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   836
constants with qualified polymorphism (according to the class
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   837
context).  Within the body context of a 'class' target, a separate
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   838
syntax layer ("user space type system") takes care of converting
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   839
between global polymorphic consts and internal locale representation.
25177
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
   840
See src/HOL/ex/Classpackage.thy for examples (as well as main HOL).
25184
haftmann
parents: 25177
diff changeset
   841
"isatool doc classes" provides a tutorial.
20807
wenzelm
parents: 20716
diff changeset
   842
25199
haftmann
parents: 25198
diff changeset
   843
* Generic code generator framework allows to generate executable
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   844
code for ML and Haskell (including Isabelle classes).  A short usage
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   845
sketch:
20188
8b22026445af added notes on class_package.ML and codegen_package.ML
haftmann
parents: 20169
diff changeset
   846
8b22026445af added notes on class_package.ML and codegen_package.ML
haftmann
parents: 20169
diff changeset
   847
    internal compilation:
25199
haftmann
parents: 25198
diff changeset
   848
        export_code <list of constants (term syntax)> in SML
20453
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
   849
    writing SML code to a file:
25199
haftmann
parents: 25198
diff changeset
   850
        export_code <list of constants (term syntax)> in SML <filename>
22735
cf627add250a code generator changes
haftmann
parents: 22450
diff changeset
   851
    writing OCaml code to a file:
25199
haftmann
parents: 25198
diff changeset
   852
        export_code <list of constants (term syntax)> in OCaml <filename>
20188
8b22026445af added notes on class_package.ML and codegen_package.ML
haftmann
parents: 20169
diff changeset
   853
    writing Haskell code to a bunch of files:
25199
haftmann
parents: 25198
diff changeset
   854
        export_code <list of constants (term syntax)> in Haskell <filename>
haftmann
parents: 25198
diff changeset
   855
haftmann
parents: 25198
diff changeset
   856
    evaluating closed propositions to True/False using code generation:
25184
haftmann
parents: 25177
diff changeset
   857
        method ``eval''
haftmann
parents: 25177
diff changeset
   858
haftmann
parents: 25177
diff changeset
   859
Reasonable default setup of framework in HOL.
20453
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
   860
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
   861
Theorem attributs for selecting and transforming function equations theorems:
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
   862
22845
5f9138bcb3d7 changed code generator invocation syntax
haftmann
parents: 22826
diff changeset
   863
    [code fun]:        select a theorem as function equation for a specific constant
5f9138bcb3d7 changed code generator invocation syntax
haftmann
parents: 22826
diff changeset
   864
    [code fun del]:    deselect a theorem as function equation for a specific constant
5f9138bcb3d7 changed code generator invocation syntax
haftmann
parents: 22826
diff changeset
   865
    [code inline]:     select an equation theorem for unfolding (inlining) in place
5f9138bcb3d7 changed code generator invocation syntax
haftmann
parents: 22826
diff changeset
   866
    [code inline del]: deselect an equation theorem for unfolding (inlining) in place
20453
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
   867
22735
cf627add250a code generator changes
haftmann
parents: 22450
diff changeset
   868
User-defined serializations (target in {SML, OCaml, Haskell}):
20453
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
   869
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
   870
    code_const <and-list of constants (term syntax)>
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
   871
      {(target) <and-list of const target syntax>}+
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
   872
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
   873
    code_type <and-list of type constructors>
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
   874
      {(target) <and-list of type target syntax>}+
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
   875
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
   876
    code_instance <and-list of instances>
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
   877
      {(target)}+
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
   878
        where instance ::= <type constructor> :: <class>
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
   879
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
   880
    code_class <and_list of classes>
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
   881
      {(target) <and-list of class target syntax>}+
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
   882
        where class target syntax ::= <class name> {where {<classop> == <target syntax>}+}?
855f07fabd76 final syntax for some Isar code generator keywords
haftmann
parents: 20375
diff changeset
   883
25199
haftmann
parents: 25198
diff changeset
   884
code_instance and code_class only are effective to target Haskell.
22735
cf627add250a code generator changes
haftmann
parents: 22450
diff changeset
   885
25177
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
   886
For example usage see src/HOL/ex/Codegenerator.thy and
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
   887
src/HOL/ex/Codegenerator_Pretty.thy.  A separate tutorial on code
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   888
generation from Isabelle/HOL theories is available via "isatool doc
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   889
codegen".
20188
8b22026445af added notes on class_package.ML and codegen_package.ML
haftmann
parents: 20169
diff changeset
   890
25129
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   891
* Code generator: consts in 'consts_code' Isar commands are now
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   892
referred to by usual term syntax (including optional type
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   893
annotations).
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
   894
19254
efaf5d47049e Pure: no_translations;
wenzelm
parents: 19252
diff changeset
   895
* Command 'no_translations' removes translation rules from theory
efaf5d47049e Pure: no_translations;
wenzelm
parents: 19252
diff changeset
   896
syntax.
efaf5d47049e Pure: no_translations;
wenzelm
parents: 19252
diff changeset
   897
19625
285771cec083 * Pure: overloaded definitions are now actually checked for acyclic dependencies;
wenzelm
parents: 19587
diff changeset
   898
* Overloaded definitions are now actually checked for acyclic
19714
wenzelm
parents: 19711
diff changeset
   899
dependencies.  The overloading scheme is slightly more general than
wenzelm
parents: 19711
diff changeset
   900
that of Haskell98, although Isabelle does not demand an exact
wenzelm
parents: 19711
diff changeset
   901
correspondence to type class and instance declarations.
wenzelm
parents: 19711
diff changeset
   902
INCOMPATIBILITY, use ``defs (unchecked overloaded)'' to admit more
wenzelm
parents: 19711
diff changeset
   903
exotic versions of overloading -- at the discretion of the user!
19711
2401b1a3087f Pure: update on overloaded defs;
wenzelm
parents: 19682
diff changeset
   904
2401b1a3087f Pure: update on overloaded defs;
wenzelm
parents: 19682
diff changeset
   905
Polymorphic constants are represented via type arguments, i.e. the
2401b1a3087f Pure: update on overloaded defs;
wenzelm
parents: 19682
diff changeset
   906
instantiation that matches an instance against the most general
2401b1a3087f Pure: update on overloaded defs;
wenzelm
parents: 19682
diff changeset
   907
declaration given in the signature.  For example, with the declaration
2401b1a3087f Pure: update on overloaded defs;
wenzelm
parents: 19682
diff changeset
   908
c :: 'a => 'a => 'a, an instance c :: nat => nat => nat is represented
2401b1a3087f Pure: update on overloaded defs;
wenzelm
parents: 19682
diff changeset
   909
as c(nat).  Overloading is essentially simultaneous structural
2401b1a3087f Pure: update on overloaded defs;
wenzelm
parents: 19682
diff changeset
   910
recursion over such type arguments.  Incomplete specification patterns
19714
wenzelm
parents: 19711
diff changeset
   911
impose global constraints on all occurrences, e.g. c('a * 'a) on the
19715
wenzelm
parents: 19714
diff changeset
   912
LHS means that more general c('a * 'b) will be disallowed on any RHS.
19714
wenzelm
parents: 19711
diff changeset
   913
Command 'print_theory' outputs the normalized system of recursive
wenzelm
parents: 19711
diff changeset
   914
equations, see section "definitions".
19625
285771cec083 * Pure: overloaded definitions are now actually checked for acyclic dependencies;
wenzelm
parents: 19587
diff changeset
   915
24086
21900a460ba4 * Configuration options;
wenzelm
parents: 24032
diff changeset
   916
* Configuration options are maintained within the theory or proof
21900a460ba4 * Configuration options;
wenzelm
parents: 24032
diff changeset
   917
context (with name and type bool/int/string), providing a very simple
21900a460ba4 * Configuration options;
wenzelm
parents: 24032
diff changeset
   918
interface to a poor-man's version of general context data.  Tools may
24110
4ab3084e311c tuned config options: eliminated separate attribute "option";
wenzelm
parents: 24086
diff changeset
   919
declare options in ML (e.g. using Attrib.config_int) and then refer to
4ab3084e311c tuned config options: eliminated separate attribute "option";
wenzelm
parents: 24086
diff changeset
   920
these values using Config.get etc.  Users may change options via an
4ab3084e311c tuned config options: eliminated separate attribute "option";
wenzelm
parents: 24086
diff changeset
   921
associated attribute of the same name.  This form of context
4ab3084e311c tuned config options: eliminated separate attribute "option";
wenzelm
parents: 24086
diff changeset
   922
declaration works particularly well with commands 'declare' or
4ab3084e311c tuned config options: eliminated separate attribute "option";
wenzelm
parents: 24086
diff changeset
   923
'using', for example ``declare [[foo = 42]]''.  Thus it has become
4ab3084e311c tuned config options: eliminated separate attribute "option";
wenzelm
parents: 24086
diff changeset
   924
very easy to avoid global references, which would not observe Isar
4ab3084e311c tuned config options: eliminated separate attribute "option";
wenzelm
parents: 24086
diff changeset
   925
toplevel undo/redo and fail to work with multithreading.
24086
21900a460ba4 * Configuration options;
wenzelm
parents: 24032
diff changeset
   926
24172
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
   927
Various global ML references of Pure and HOL have been turned into
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
   928
configuration options:
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
   929
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
   930
  Unify.search_bound		unify_search_bound
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
   931
  Unify.trace_bound		unify_trace_bound
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
   932
  Unify.trace_simp		unify_trace_simp
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
   933
  Unify.trace_types		unify_trace_types
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
   934
  Simplifier.simp_depth_limit	simp_depth_limit
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
   935
  Blast.depth_limit		blast_depth_limit
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
   936
  DatatypeProp.dtK		datatype_distinctness_limit
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
   937
  fast_arith_neq_limit  	fast_arith_neq_limit
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
   938
  fast_arith_split_limit	fast_arith_split_limit
06e42cf7df4e theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents: 24110
diff changeset
   939
24086
21900a460ba4 * Configuration options;
wenzelm
parents: 24032
diff changeset
   940
* Named collections of theorems may be easily installed as context
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
   941
data using the functor NamedThmsFun (see also
24086
21900a460ba4 * Configuration options;
wenzelm
parents: 24032
diff changeset
   942
src/Pure/Tools/named_thms.ML).  The user may add or delete facts via
24110
4ab3084e311c tuned config options: eliminated separate attribute "option";
wenzelm
parents: 24086
diff changeset
   943
attributes; there is also a toplevel print command.  This facility is
4ab3084e311c tuned config options: eliminated separate attribute "option";
wenzelm
parents: 24086
diff changeset
   944
just a common case of general context data, which is the preferred way
4ab3084e311c tuned config options: eliminated separate attribute "option";
wenzelm
parents: 24086
diff changeset
   945
for anything more complex than just a list of facts in canonical
4ab3084e311c tuned config options: eliminated separate attribute "option";
wenzelm
parents: 24086
diff changeset
   946
order.
24086
21900a460ba4 * Configuration options;
wenzelm
parents: 24032
diff changeset
   947
24032
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   948
* Isar: command 'declaration' augments a local theory by generic
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   949
declaration functions written in ML.  This enables arbitrary content
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   950
being added to the context, depending on a morphism that tells the
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   951
difference of the original declaration context wrt. the application
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   952
context encountered later on.
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   953
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   954
* Isar: proper interfaces for simplification procedures.  Command
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   955
'simproc_setup' declares named simprocs (with match patterns, and body
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   956
text in ML).  Attribute "simproc" adds/deletes simprocs in the current
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   957
context.  ML antiquotation @{simproc name} retrieves named simprocs.
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   958
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   959
* Isar: an extra pair of brackets around attribute declarations
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   960
abbreviates a theorem reference involving an internal dummy fact,
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   961
which will be ignored later --- only the effect of the attribute on
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   962
the background context will persist.  This form of in-place
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   963
declarations is particularly useful with commands like 'declare' and
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   964
'using', for example ``have A using [[simproc a]] by simp''.
b3d7eb6f535f * Isar: command 'declaration';
wenzelm
parents: 23977
diff changeset
   965
23369
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
   966
* Isar: method "assumption" (and implicit closing of subproofs) now
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
   967
takes simple non-atomic goal assumptions into account: after applying
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
   968
an assumption as a rule the resulting subgoals are solved by atomic
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
   969
assumption steps.  This is particularly useful to finish 'obtain'
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
   970
goals, such as "!!x. (!!x. P x ==> thesis) ==> P x ==> thesis",
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
   971
without referring to the original premise "!!x. P x ==> thesis" in the
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
   972
Isar proof context.  POTENTIAL INCOMPATIBILITY: method "assumption" is
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
   973
more permissive.
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
   974
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
   975
* Isar: implicit use of prems from the Isar proof context is
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
   976
considered a legacy feature.  Common applications like ``have A .''
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
   977
may be replaced by ``have A by fact'' or ``note `A`''.  In general,
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
   978
referencing facts explicitly here improves readability and
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
   979
maintainability of proof texts.
227c51012cdb * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
wenzelm
parents: 23367
diff changeset
   980
17865
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
   981
* Isar: improper proof element 'guess' is like 'obtain', but derives
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
   982
the obtained context from the course of reasoning!  For example:
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
   983
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
   984
  assume "EX x y. A x & B y"   -- "any previous fact"
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
   985
  then guess x and y by clarify
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
   986
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
   987
This technique is potentially adventurous, depending on the facts and
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
   988
proof tools being involved here.
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
   989
18020
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
   990
* Isar: known facts from the proof context may be specified as literal
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
   991
propositions, using ASCII back-quote syntax.  This works wherever
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
   992
named facts used to be allowed so far, in proof commands, proof
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
   993
methods, attributes etc.  Literal facts are retrieved from the context
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
   994
according to unification of type and term parameters.  For example,
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
   995
provided that "A" and "A ==> B" and "!!x. P x ==> Q x" are known
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
   996
theorems in the current context, then these are valid literal facts:
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
   997
`A` and `A ==> B` and `!!x. P x ==> Q x" as well as `P a ==> Q a` etc.
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
   998
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
   999
There is also a proof method "fact" which does the same composition
18044
wenzelm
parents: 18020
diff changeset
  1000
for explicit goal states, e.g. the following proof texts coincide with
wenzelm
parents: 18020
diff changeset
  1001
certain special cases of literal facts:
18020
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
  1002
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
  1003
  have "A" by fact                 ==  note `A`
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
  1004
  have "A ==> B" by fact           ==  note `A ==> B`
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
  1005
  have "!!x. P x ==> Q x" by fact  ==  note `!!x. P x ==> Q x`
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
  1006
  have "P a ==> Q a" by fact       ==  note `P a ==> Q a`
d23a846598d2 * Pure/Isar: literal facts;
wenzelm
parents: 17996
diff changeset
  1007
20118
0c1ec587a5a8 * Isar: ":" (colon) is no longer a symbolic identifier character;
wenzelm
parents: 20090
diff changeset
  1008
* Isar: ":" (colon) is no longer a symbolic identifier character in
0c1ec587a5a8 * Isar: ":" (colon) is no longer a symbolic identifier character;
wenzelm
parents: 20090
diff changeset
  1009
outer syntax.  Thus symbolic identifiers may be used without
0c1ec587a5a8 * Isar: ":" (colon) is no longer a symbolic identifier character;
wenzelm
parents: 20090
diff changeset
  1010
additional white space in declarations like this: ``assume *: A''.
0c1ec587a5a8 * Isar: ":" (colon) is no longer a symbolic identifier character;
wenzelm
parents: 20090
diff changeset
  1011
20013
57505678692d Isar: 'print_facts' prints all local facts;
wenzelm
parents: 19984
diff changeset
  1012
* Isar: 'print_facts' prints all local facts of the current context,
57505678692d Isar: 'print_facts' prints all local facts;
wenzelm
parents: 19984
diff changeset
  1013
both named and unnamed ones.
57505678692d Isar: 'print_facts' prints all local facts;
wenzelm
parents: 19984
diff changeset
  1014
18308
f18a54840629 simulaneous 'def';
wenzelm
parents: 18267
diff changeset
  1015
* Isar: 'def' now admits simultaneous definitions, e.g.:
f18a54840629 simulaneous 'def';
wenzelm
parents: 18267
diff changeset
  1016
f18a54840629 simulaneous 'def';
wenzelm
parents: 18267
diff changeset
  1017
  def x == "t" and y == "u"
f18a54840629 simulaneous 'def';
wenzelm
parents: 18267
diff changeset
  1018
18540
7b6f57406b1b * Pure/Isar: new command 'unfolding';
wenzelm
parents: 18536
diff changeset
  1019
* Isar: added command 'unfolding', which is structurally similar to
7b6f57406b1b * Pure/Isar: new command 'unfolding';
wenzelm
parents: 18536
diff changeset
  1020
'using', but affects both the goal state and facts by unfolding given
18815
cb778c0ce1b5 Pure/Isar: (un)folded, (un)fold, unfolding support
wenzelm
parents: 18738
diff changeset
  1021
rewrite rules.  Thus many occurrences of the 'unfold' method or
18540
7b6f57406b1b * Pure/Isar: new command 'unfolding';
wenzelm
parents: 18536
diff changeset
  1022
'unfolded' attribute may be replaced by first-class proof text.
7b6f57406b1b * Pure/Isar: new command 'unfolding';
wenzelm
parents: 18536
diff changeset
  1023
18815
cb778c0ce1b5 Pure/Isar: (un)folded, (un)fold, unfolding support
wenzelm
parents: 18738
diff changeset
  1024
* Isar: methods 'unfold' / 'fold', attributes 'unfolded' / 'folded',
cb778c0ce1b5 Pure/Isar: (un)folded, (un)fold, unfolding support
wenzelm
parents: 18738
diff changeset
  1025
and command 'unfolding' now all support object-level equalities
cb778c0ce1b5 Pure/Isar: (un)folded, (un)fold, unfolding support
wenzelm
parents: 18738
diff changeset
  1026
(potentially conditional).  The underlying notion of rewrite rule is
cb778c0ce1b5 Pure/Isar: (un)folded, (un)fold, unfolding support
wenzelm
parents: 18738
diff changeset
  1027
analogous to the 'rule_format' attribute, but *not* that of the
cb778c0ce1b5 Pure/Isar: (un)folded, (un)fold, unfolding support
wenzelm
parents: 18738
diff changeset
  1028
Simplifier (which is usually more generous).
cb778c0ce1b5 Pure/Isar: (un)folded, (un)fold, unfolding support
wenzelm
parents: 18738
diff changeset
  1029
24238
ae70f95e31de new attribute [rotated]
kleing
parents: 24234
diff changeset
  1030
* Isar: the new attribute [rotated n] (default n = 1) rotates the
ae70f95e31de new attribute [rotated]
kleing
parents: 24234
diff changeset
  1031
premises of a theorem by n. Useful in conjunction with drule.
ae70f95e31de new attribute [rotated]
kleing
parents: 24234
diff changeset
  1032
19220
05b00acff957 Isar/method: goal restriction;
wenzelm
parents: 19211
diff changeset
  1033
* Isar: the goal restriction operator [N] (default N = 1) evaluates a
05b00acff957 Isar/method: goal restriction;
wenzelm
parents: 19211
diff changeset
  1034
method expression within a sandbox consisting of the first N
19240
wenzelm
parents: 19233
diff changeset
  1035
sub-goals, which need to exist.  For example, ``simp_all [3]''
wenzelm
parents: 19233
diff changeset
  1036
simplifies the first three sub-goals, while (rule foo, simp_all)[]
wenzelm
parents: 19233
diff changeset
  1037
simplifies all new goals that emerge from applying rule foo to the
wenzelm
parents: 19233
diff changeset
  1038
originally first one.
19220
05b00acff957 Isar/method: goal restriction;
wenzelm
parents: 19211
diff changeset
  1039
19814
faa698d46686 * Theory syntax: some popular names (e.g. "class", "if") are now keywords.
wenzelm
parents: 19783
diff changeset
  1040
* Isar: schematic goals are no longer restricted to higher-order
faa698d46686 * Theory syntax: some popular names (e.g. "class", "if") are now keywords.
wenzelm
parents: 19783
diff changeset
  1041
patterns; e.g. ``lemma "?P(?x)" by (rule TrueI)'' now works as
faa698d46686 * Theory syntax: some popular names (e.g. "class", "if") are now keywords.
wenzelm
parents: 19783
diff changeset
  1042
expected.
faa698d46686 * Theory syntax: some popular names (e.g. "class", "if") are now keywords.
wenzelm
parents: 19783
diff changeset
  1043
18901
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1044
* Isar: the conclusion of a long theorem statement is now either
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1045
'shows' (a simultaneous conjunction, as before), or 'obtains'
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1046
(essentially a disjunction of cases with local parameters and
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1047
assumptions).  The latter allows to express general elimination rules
18910
wenzelm
parents: 18901
diff changeset
  1048
adequately; in this notation common elimination rules look like this:
18901
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1049
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1050
  lemma exE:    -- "EX x. P x ==> (!!x. P x ==> thesis) ==> thesis"
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1051
    assumes "EX x. P x"
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1052
    obtains x where "P x"
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1053
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1054
  lemma conjE:  -- "A & B ==> (A ==> B ==> thesis) ==> thesis"
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1055
    assumes "A & B"
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1056
    obtains A and B
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1057
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1058
  lemma disjE:  -- "A | B ==> (A ==> thesis) ==> (B ==> thesis) ==> thesis"
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1059
    assumes "A | B"
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1060
    obtains
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1061
      A
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1062
    | B
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1063
18910
wenzelm
parents: 18901
diff changeset
  1064
The subsequent classical rules even refer to the formal "thesis"
18901
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1065
explicitly:
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1066
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1067
  lemma classical:     -- "(~ thesis ==> thesis) ==> thesis"
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1068
    obtains "~ thesis"
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1069
18910
wenzelm
parents: 18901
diff changeset
  1070
  lemma Peirce's_Law:  -- "((thesis ==> something) ==> thesis) ==> thesis"
wenzelm
parents: 18901
diff changeset
  1071
    obtains "thesis ==> something"
18901
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1072
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1073
The actual proof of an 'obtains' statement is analogous to that of the
18910
wenzelm
parents: 18901
diff changeset
  1074
Isar proof element 'obtain', only that there may be several cases.
wenzelm
parents: 18901
diff changeset
  1075
Optional case names may be specified in parentheses; these will be
wenzelm
parents: 18901
diff changeset
  1076
available both in the present proof and as annotations in the
wenzelm
parents: 18901
diff changeset
  1077
resulting rule, for later use with the 'cases' method (cf. attribute
wenzelm
parents: 18901
diff changeset
  1078
case_names).
18901
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1079
21447
379f130843f7 * Isar: the assumptions of a long theorem statement are available as assms;
wenzelm
parents: 21406
diff changeset
  1080
* Isar: the assumptions of a long theorem statement are available as
379f130843f7 * Isar: the assumptions of a long theorem statement are available as assms;
wenzelm
parents: 21406
diff changeset
  1081
"assms" fact in the proof context.  This is more appropriate than the
379f130843f7 * Isar: the assumptions of a long theorem statement are available as assms;
wenzelm
parents: 21406
diff changeset
  1082
(historical) "prems", which refers to all assumptions of the current
379f130843f7 * Isar: the assumptions of a long theorem statement are available as assms;
wenzelm
parents: 21406
diff changeset
  1083
context, including those from the target locale, proof body etc.
379f130843f7 * Isar: the assumptions of a long theorem statement are available as assms;
wenzelm
parents: 21406
diff changeset
  1084
19263
a86d09815dac print_statement;
wenzelm
parents: 19254
diff changeset
  1085
* Isar: 'print_statement' prints theorems from the current theory or
a86d09815dac print_statement;
wenzelm
parents: 19254
diff changeset
  1086
proof context in long statement form, according to the syntax of a
a86d09815dac print_statement;
wenzelm
parents: 19254
diff changeset
  1087
top-level lemma.
a86d09815dac print_statement;
wenzelm
parents: 19254
diff changeset
  1088
18901
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1089
* Isar: 'obtain' takes an optional case name for the local context
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1090
introduction rule (default "that").
701e53c81c25 * Isar: 'obtains' element;
wenzelm
parents: 18862
diff changeset
  1091
19587
eb063e7932d7 * Isar: removed obsolete 'concl is' patterns.
wenzelm
parents: 19572
diff changeset
  1092
* Isar: removed obsolete 'concl is' patterns.  INCOMPATIBILITY, use
eb063e7932d7 * Isar: removed obsolete 'concl is' patterns.
wenzelm
parents: 19572
diff changeset
  1093
explicit (is "_ ==> ?foo") in the rare cases where this still happens
eb063e7932d7 * Isar: removed obsolete 'concl is' patterns.
wenzelm
parents: 19572
diff changeset
  1094
to occur.
eb063e7932d7 * Isar: removed obsolete 'concl is' patterns.
wenzelm
parents: 19572
diff changeset
  1095
19682
c8c301eb965a * Pure: syntax 'CONST name' produces a fully internalized constant;
wenzelm
parents: 19665
diff changeset
  1096
* Pure: syntax "CONST name" produces a fully internalized constant
c8c301eb965a * Pure: syntax 'CONST name' produces a fully internalized constant;
wenzelm
parents: 19665
diff changeset
  1097
according to the current context.  This is particularly useful for
c8c301eb965a * Pure: syntax 'CONST name' produces a fully internalized constant;
wenzelm
parents: 19665
diff changeset
  1098
syntax translations that should refer to internal constant
c8c301eb965a * Pure: syntax 'CONST name' produces a fully internalized constant;
wenzelm
parents: 19665
diff changeset
  1099
representations independently of name spaces.
c8c301eb965a * Pure: syntax 'CONST name' produces a fully internalized constant;
wenzelm
parents: 19665
diff changeset
  1100
21537
45b3a85ee548 * Pure: syntax constant for foo (binder) is called foo_binder;
wenzelm
parents: 21471
diff changeset
  1101
* Pure: syntax constant for foo (binder "FOO ") is called "foo_binder"
45b3a85ee548 * Pure: syntax constant for foo (binder) is called foo_binder;
wenzelm
parents: 21471
diff changeset
  1102
instead of "FOO ". This allows multiple binder declarations to coexist
45b3a85ee548 * Pure: syntax constant for foo (binder) is called foo_binder;
wenzelm
parents: 21471
diff changeset
  1103
in the same context.  INCOMPATIBILITY.
45b3a85ee548 * Pure: syntax constant for foo (binder) is called foo_binder;
wenzelm
parents: 21471
diff changeset
  1104
21209
dbb8decc36bc 'const_syntax' command: allow fixed variables, renamed to 'notation';
wenzelm
parents: 21200
diff changeset
  1105
* Isar/locales: 'notation' provides a robust interface to the 'syntax'
dbb8decc36bc 'const_syntax' command: allow fixed variables, renamed to 'notation';
wenzelm
parents: 21200
diff changeset
  1106
primitive that also works in a locale context (both for constants and
24950
106fc30769a9 added 'no_notation';
wenzelm
parents: 24924
diff changeset
  1107
fixed variables). Type declaration and internal syntactic representation
106fc30769a9 added 'no_notation';
wenzelm
parents: 24924
diff changeset
  1108
of given constants retrieved from the context. Likewise, the
106fc30769a9 added 'no_notation';
wenzelm
parents: 24924
diff changeset
  1109
'no_notation' command allows to remove given syntax annotations from the
106fc30769a9 added 'no_notation';
wenzelm
parents: 24924
diff changeset
  1110
current context.
19682
c8c301eb965a * Pure: syntax 'CONST name' produces a fully internalized constant;
wenzelm
parents: 19665
diff changeset
  1111
19665
8885951e9c2d * Isar/locale: 'const_syntax';
wenzelm
parents: 19653
diff changeset
  1112
* Isar/locales: new derived specification elements 'axiomatization',
8885951e9c2d * Isar/locale: 'const_syntax';
wenzelm
parents: 19653
diff changeset
  1113
'definition', 'abbreviation', which support type-inference, admit
19083
wenzelm
parents: 19081
diff changeset
  1114
object-level specifications (equality, equivalence).  See also the
wenzelm
parents: 19081
diff changeset
  1115
isar-ref manual.  Examples:
19081
085b5badb8de * Isar/locales: new derived specification elements 'definition', 'abbreviation', 'axiomatization';
wenzelm
parents: 19034
diff changeset
  1116
19665
8885951e9c2d * Isar/locale: 'const_syntax';
wenzelm
parents: 19653
diff changeset
  1117
  axiomatization
21595
wenzelm
parents: 21545
diff changeset
  1118
    eq  (infix "===" 50) where
wenzelm
parents: 21545
diff changeset
  1119
    eq_refl: "x === x" and eq_subst: "x === y ==> P x ==> P y"
wenzelm
parents: 21545
diff changeset
  1120
wenzelm
parents: 21545
diff changeset
  1121
  definition "f x y = x + y + 1"
wenzelm
parents: 21545
diff changeset
  1122
  definition g where "g x = f x x"
19081
085b5badb8de * Isar/locales: new derived specification elements 'definition', 'abbreviation', 'axiomatization';
wenzelm
parents: 19034
diff changeset
  1123
19363
667b5ea637dd refined 'abbreviation';
wenzelm
parents: 19279
diff changeset
  1124
  abbreviation
21595
wenzelm
parents: 21545
diff changeset
  1125
    neq  (infix "=!=" 50) where
19363
667b5ea637dd refined 'abbreviation';
wenzelm
parents: 19279
diff changeset
  1126
    "x =!= y == ~ (x === y)"
19081
085b5badb8de * Isar/locales: new derived specification elements 'definition', 'abbreviation', 'axiomatization';
wenzelm
parents: 19034
diff changeset
  1127
19083
wenzelm
parents: 19081
diff changeset
  1128
These specifications may be also used in a locale context.  Then the
wenzelm
parents: 19081
diff changeset
  1129
constants being introduced depend on certain fixed parameters, and the
wenzelm
parents: 19081
diff changeset
  1130
constant name is qualified by the locale base name.  An internal
wenzelm
parents: 19081
diff changeset
  1131
abbreviation takes care for convenient input and output, making the
19088
wenzelm
parents: 19084
diff changeset
  1132
parameters implicit and using the original short name.  See also
25177
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
  1133
src/HOL/ex/Abstract_NAT.thy for an example of deriving polymorphic
19083
wenzelm
parents: 19081
diff changeset
  1134
entities from a monomorphic theory.
wenzelm
parents: 19081
diff changeset
  1135
wenzelm
parents: 19081
diff changeset
  1136
Presently, abbreviations are only available 'in' a target locale, but
19363
667b5ea637dd refined 'abbreviation';
wenzelm
parents: 19279
diff changeset
  1137
not inherited by general import expressions.  Also note that
667b5ea637dd refined 'abbreviation';
wenzelm
parents: 19279
diff changeset
  1138
'abbreviation' may be used as a type-safe replacement for 'syntax' +
24735
3a55ee2cae70 * Pure/Isar: unified specification syntax admits type inference and dummy patterns;
wenzelm
parents: 24706
diff changeset
  1139
'translations' in common applications.  The "no_abbrevs" print mode
3a55ee2cae70 * Pure/Isar: unified specification syntax admits type inference and dummy patterns;
wenzelm
parents: 24706
diff changeset
  1140
prevents folding of abbreviations in term output.
19084
wenzelm
parents: 19083
diff changeset
  1141
19682
c8c301eb965a * Pure: syntax 'CONST name' produces a fully internalized constant;
wenzelm
parents: 19665
diff changeset
  1142
Concrete syntax is attached to specified constants in internal form,
c8c301eb965a * Pure: syntax 'CONST name' produces a fully internalized constant;
wenzelm
parents: 19665
diff changeset
  1143
independently of name spaces.  The parse tree representation is
21209
dbb8decc36bc 'const_syntax' command: allow fixed variables, renamed to 'notation';
wenzelm
parents: 21200
diff changeset
  1144
slightly different -- use 'notation' instead of raw 'syntax', and
19682
c8c301eb965a * Pure: syntax 'CONST name' produces a fully internalized constant;
wenzelm
parents: 19665
diff changeset
  1145
'translations' with explicit "CONST" markup to accommodate this.
19665
8885951e9c2d * Isar/locale: 'const_syntax';
wenzelm
parents: 19653
diff changeset
  1146
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1147
* Pure/Isar: unified syntax for new-style specification mechanisms
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1148
(e.g.  'definition', 'abbreviation', or 'inductive' in HOL) admits
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1149
full type inference and dummy patterns ("_").  For example:
24735
3a55ee2cae70 * Pure/Isar: unified specification syntax admits type inference and dummy patterns;
wenzelm
parents: 24706
diff changeset
  1150
3a55ee2cae70 * Pure/Isar: unified specification syntax admits type inference and dummy patterns;
wenzelm
parents: 24706
diff changeset
  1151
  definition "K x _ = x"
3a55ee2cae70 * Pure/Isar: unified specification syntax admits type inference and dummy patterns;
wenzelm
parents: 24706
diff changeset
  1152
24738
wenzelm
parents: 24737
diff changeset
  1153
  inductive conj for A B
wenzelm
parents: 24737
diff changeset
  1154
  where "A ==> B ==> conj A B"
wenzelm
parents: 24737
diff changeset
  1155
21735
0c65e072f4be added print_abbrevs;
wenzelm
parents: 21717
diff changeset
  1156
* Pure: command 'print_abbrevs' prints all constant abbreviations of
0c65e072f4be added print_abbrevs;
wenzelm
parents: 21717
diff changeset
  1157
the current context.  Print mode "no_abbrevs" prevents inversion of
0c65e072f4be added print_abbrevs;
wenzelm
parents: 21717
diff changeset
  1158
abbreviations on output.
0c65e072f4be added print_abbrevs;
wenzelm
parents: 21717
diff changeset
  1159
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1160
* Isar/locales: improved parameter handling: use of locales "var" and
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1161
"struct" no longer necessary; - parameter renamings are no longer
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1162
required to be injective.  For example, this allows to define
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1163
endomorphisms as locale endom = homom mult mult h.
19783
82f365a14960 Improved parameter management of locales.
ballarin
parents: 19715
diff changeset
  1164
19931
fb32b43e7f80 Restructured locales with predicates: import is now an interpretation.
ballarin
parents: 19895
diff changeset
  1165
* Isar/locales: changed the way locales with predicates are defined.
fb32b43e7f80 Restructured locales with predicates: import is now an interpretation.
ballarin
parents: 19895
diff changeset
  1166
Instead of accumulating the specification, the imported expression is
22126
wenzelm
parents: 22125
diff changeset
  1167
now an interpretation.  INCOMPATIBILITY: different normal form of
wenzelm
parents: 22125
diff changeset
  1168
locale expressions.  In particular, in interpretations of locales with
wenzelm
parents: 22125
diff changeset
  1169
predicates, goals repesenting already interpreted fragments are not
wenzelm
parents: 22125
diff changeset
  1170
removed automatically.  Use methods `intro_locales' and
wenzelm
parents: 22125
diff changeset
  1171
`unfold_locales'; see below.
wenzelm
parents: 22125
diff changeset
  1172
wenzelm
parents: 22125
diff changeset
  1173
* Isar/locales: new methods `intro_locales' and `unfold_locales'
wenzelm
parents: 22125
diff changeset
  1174
provide backward reasoning on locales predicates.  The methods are
wenzelm
parents: 22125
diff changeset
  1175
aware of interpretations and discharge corresponding goals.
wenzelm
parents: 22125
diff changeset
  1176
`intro_locales' is less aggressive then `unfold_locales' and does not
wenzelm
parents: 22125
diff changeset
  1177
unfold predicates to assumptions.
19931
fb32b43e7f80 Restructured locales with predicates: import is now an interpretation.
ballarin
parents: 19895
diff changeset
  1178
fb32b43e7f80 Restructured locales with predicates: import is now an interpretation.
ballarin
parents: 19895
diff changeset
  1179
* Isar/locales: the order in which locale fragments are accumulated
22126
wenzelm
parents: 22125
diff changeset
  1180
has changed.  This enables to override declarations from fragments due
wenzelm
parents: 22125
diff changeset
  1181
to interpretations -- for example, unwanted simp rules.
19931
fb32b43e7f80 Restructured locales with predicates: import is now an interpretation.
ballarin
parents: 19895
diff changeset
  1182
23920
4288dc7dc248 interpretation: unfolding of equations;
ballarin
parents: 23889
diff changeset
  1183
* Isar/locales: interpretation in theories and proof contexts has been
4288dc7dc248 interpretation: unfolding of equations;
ballarin
parents: 23889
diff changeset
  1184
extended.  One may now specify (and prove) equations, which are
4288dc7dc248 interpretation: unfolding of equations;
ballarin
parents: 23889
diff changeset
  1185
unfolded in interpreted theorems.  This is useful for replacing
4288dc7dc248 interpretation: unfolding of equations;
ballarin
parents: 23889
diff changeset
  1186
defined concepts (constants depending on locale parameters) by
4288dc7dc248 interpretation: unfolding of equations;
ballarin
parents: 23889
diff changeset
  1187
concepts already existing in the target context.  Example:
4288dc7dc248 interpretation: unfolding of equations;
ballarin
parents: 23889
diff changeset
  1188
4288dc7dc248 interpretation: unfolding of equations;
ballarin
parents: 23889
diff changeset
  1189
  interpretation partial_order ["op <= :: [int, int] => bool"]
4288dc7dc248 interpretation: unfolding of equations;
ballarin
parents: 23889
diff changeset
  1190
    where "partial_order.less (op <=) (x::int) y = (x < y)"
4288dc7dc248 interpretation: unfolding of equations;
ballarin
parents: 23889
diff changeset
  1191
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1192
Typically, the constant `partial_order.less' is created by a
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1193
definition specification element in the context of locale
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1194
partial_order.
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1195
24859
9b9b1599fb89 tuned induct etc.;
wenzelm
parents: 24804
diff changeset
  1196
* Method "induct": improved internal context management to support
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1197
local fixes and defines on-the-fly. Thus explicit meta-level
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1198
connectives !!  and ==> are rarely required anymore in inductive goals
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1199
(using object-logic connectives for this purpose has been long
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1200
obsolete anyway). Common proof patterns are explained in
25177
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
  1201
src/HOL/Induct/Common_Patterns.thy, see also
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
  1202
src/HOL/Isar_examples/Puzzle.thy and src/HOL/Lambda for realistic
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
  1203
examples.
24606
7acbb982fc77 moved induct patterns to HOL/Induct/Common_Patterns.thy;
wenzelm
parents: 24507
diff changeset
  1204
24859
9b9b1599fb89 tuned induct etc.;
wenzelm
parents: 24804
diff changeset
  1205
* Method "induct": improved handling of simultaneous goals. Instead of
24606
7acbb982fc77 moved induct patterns to HOL/Induct/Common_Patterns.thy;
wenzelm
parents: 24507
diff changeset
  1206
introducing object-level conjunction, the statement is now split into
7acbb982fc77 moved induct patterns to HOL/Induct/Common_Patterns.thy;
wenzelm
parents: 24507
diff changeset
  1207
several conclusions, while the corresponding symbolic cases are nested
7acbb982fc77 moved induct patterns to HOL/Induct/Common_Patterns.thy;
wenzelm
parents: 24507
diff changeset
  1208
accordingly. INCOMPATIBILITY, proofs need to be structured explicitly,
25177
f9ced25685e0 tuned file names etc.;
wenzelm
parents: 25163
diff changeset
  1209
see src/HOL/Induct/Common_Patterns.thy, for example.
24606
7acbb982fc77 moved induct patterns to HOL/Induct/Common_Patterns.thy;
wenzelm
parents: 24507
diff changeset
  1210
24859
9b9b1599fb89 tuned induct etc.;
wenzelm
parents: 24804
diff changeset
  1211
* Method "induct": mutual induction rules are now specified as a list
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1212
of rule sharing the same induction cases. HOL packages usually provide
24606
7acbb982fc77 moved induct patterns to HOL/Induct/Common_Patterns.thy;
wenzelm
parents: 24507
diff changeset
  1213
foo_bar.inducts for mutually defined items foo and bar (e.g. inductive
24859
9b9b1599fb89 tuned induct etc.;
wenzelm
parents: 24804
diff changeset
  1214
predicates/sets or datatypes). INCOMPATIBILITY, users need to specify
9b9b1599fb89 tuned induct etc.;
wenzelm
parents: 24804
diff changeset
  1215
mutual induction rules differently, i.e. like this:
18506
96260fb11449 * Provers/induct: support simultaneous goals with mutual rules;
wenzelm
parents: 18495
diff changeset
  1216
96260fb11449 * Provers/induct: support simultaneous goals with mutual rules;
wenzelm
parents: 18495
diff changeset
  1217
  (induct rule: foo_bar.inducts)
96260fb11449 * Provers/induct: support simultaneous goals with mutual rules;
wenzelm
parents: 18495
diff changeset
  1218
  (induct set: foo bar)
24859
9b9b1599fb89 tuned induct etc.;
wenzelm
parents: 24804
diff changeset
  1219
  (induct pred: foo bar)
18506
96260fb11449 * Provers/induct: support simultaneous goals with mutual rules;
wenzelm
parents: 18495
diff changeset
  1220
  (induct type: foo bar)
96260fb11449 * Provers/induct: support simultaneous goals with mutual rules;
wenzelm
parents: 18495
diff changeset
  1221
96260fb11449 * Provers/induct: support simultaneous goals with mutual rules;
wenzelm
parents: 18495
diff changeset
  1222
The ML function ProjectRule.projections turns old-style rules into the
96260fb11449 * Provers/induct: support simultaneous goals with mutual rules;
wenzelm
parents: 18495
diff changeset
  1223
new format.
96260fb11449 * Provers/induct: support simultaneous goals with mutual rules;
wenzelm
parents: 18495
diff changeset
  1224
24859
9b9b1599fb89 tuned induct etc.;
wenzelm
parents: 24804
diff changeset
  1225
* Method "coinduct": dual of induction, see
18399
651438736fa1 Provers/induct: coinduct;
wenzelm
parents: 18370
diff changeset
  1226
src/HOL/Library/Coinductive_List.thy for various examples.
651438736fa1 Provers/induct: coinduct;
wenzelm
parents: 18370
diff changeset
  1227
24859
9b9b1599fb89 tuned induct etc.;
wenzelm
parents: 24804
diff changeset
  1228
* Method "cases", "induct", "coinduct": the ``(open)'' option is
9b9b1599fb89 tuned induct etc.;
wenzelm
parents: 24804
diff changeset
  1229
considered a legacy feature.
9b9b1599fb89 tuned induct etc.;
wenzelm
parents: 24804
diff changeset
  1230
20919
dab803075c62 attribute "symmetric": standardized schematic variables;
wenzelm
parents: 20857
diff changeset
  1231
* Attribute "symmetric" produces result with standardized schematic
dab803075c62 attribute "symmetric": standardized schematic variables;
wenzelm
parents: 20857
diff changeset
  1232
variables (index 0).  Potential INCOMPATIBILITY.
dab803075c62 attribute "symmetric": standardized schematic variables;
wenzelm
parents: 20857
diff changeset
  1233
22126
wenzelm
parents: 22125
diff changeset
  1234
* Simplifier: by default the simplifier trace only shows top level
wenzelm
parents: 22125
diff changeset
  1235
rewrites now. That is, trace_simp_depth_limit is set to 1 by
wenzelm
parents: 22125
diff changeset
  1236
default. Thus there is less danger of being flooded by the trace. The
wenzelm
parents: 22125
diff changeset
  1237
trace indicates where parts have been suppressed.
18674
98d380757893 *** empty log message ***
nipkow
parents: 18644
diff changeset
  1238
  
18536
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
  1239
* Provers/classical: removed obsolete classical version of elim_format
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
  1240
attribute; classical elim/dest rules are now treated uniformly when
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
  1241
manipulating the claset.
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
  1242
18694
83f50ac6ddcb * Classical: optional weight for attributes;
wenzelm
parents: 18687
diff changeset
  1243
* Provers/classical: stricter checks to ensure that supplied intro,
83f50ac6ddcb * Classical: optional weight for attributes;
wenzelm
parents: 18687
diff changeset
  1244
dest and elim rules are well-formed; dest and elim rules must have at
83f50ac6ddcb * Classical: optional weight for attributes;
wenzelm
parents: 18687
diff changeset
  1245
least one premise.
83f50ac6ddcb * Classical: optional weight for attributes;
wenzelm
parents: 18687
diff changeset
  1246
83f50ac6ddcb * Classical: optional weight for attributes;
wenzelm
parents: 18687
diff changeset
  1247
* Provers/classical: attributes dest/elim/intro take an optional
18695
wenzelm
parents: 18694
diff changeset
  1248
weight argument for the rule (just as the Pure versions).  Weights are
18696
wenzelm
parents: 18695
diff changeset
  1249
ignored by automated tools, but determine the search order of single
18694
83f50ac6ddcb * Classical: optional weight for attributes;
wenzelm
parents: 18687
diff changeset
  1250
rule steps.
18557
60a0f9caa0a2 Provers/classical: stricter checks to ensure that supplied intro, dest and
paulson
parents: 18549
diff changeset
  1251
18536
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
  1252
* Syntax: input syntax now supports dummy variable binding "%_. b",
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
  1253
where the body does not mention the bound variable.  Note that dummy
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
  1254
patterns implicitly depend on their context of bounds, which makes
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
  1255
"{_. _}" match any set comprehension as expected.  Potential
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
  1256
INCOMPATIBILITY -- parse translations need to cope with syntactic
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
  1257
constant "_idtdummy" in the binding position.
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
  1258
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
  1259
* Syntax: removed obsolete syntactic constant "_K" and its associated
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
  1260
parse translation.  INCOMPATIBILITY -- use dummy abstraction instead,
ab3f32f86847 * Provers/classical: removed obsolete classical version of elim_format;
wenzelm
parents: 18507
diff changeset
  1261
for example "A -> B" => "Pi A (%_. B)".
17779
407bea05c2da added dummy variable binding;
wenzelm
parents: 17754
diff changeset
  1262
20582
ebd0e03c6a9b * Pure: 'class_deps' command visualizes the subclass relation;
wenzelm
parents: 20503
diff changeset
  1263
* Pure: 'class_deps' command visualizes the subclass relation, using
ebd0e03c6a9b * Pure: 'class_deps' command visualizes the subclass relation;
wenzelm
parents: 20503
diff changeset
  1264
the graph browser tool.
ebd0e03c6a9b * Pure: 'class_deps' command visualizes the subclass relation;
wenzelm
parents: 20503
diff changeset
  1265
24800
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1266
* Pure: 'print_theory' now suppresses certain internal declarations by
3ab455b3d03b misc tuning and update;
wenzelm
parents: 24738
diff changeset
  1267
default; use '!' option for full details.
20620
8b26f58c5646 * Pure: 'print_theory' now suppresses entities with internal name;
wenzelm
parents: 20607
diff changeset
  1268
17865
5b0c3dcfbad2 * antiquotations ML_type, ML_struct;
wenzelm
parents: 17809
diff changeset
  1269
17806
b6a547bfb419 *** empty log message ***
nipkow
parents: 17780
diff changeset
  1270
*** HOL ***
b6a547bfb419 *** empty log message ***
nipkow
parents: 17780
diff changeset
  1271
25129
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
  1272
* Method "metis" proves goals by applying the Metis general-purpose
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
  1273
resolution prover (see also http://gilith.com/software/metis/).
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
  1274
Examples are in the directory MetisExamples.  WARNING: the
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
  1275
Isabelle/HOL-Metis integration does not yet work properly with
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
  1276
multi-threading.
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
  1277
  
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
  1278
* Command 'sledgehammer' invokes external automatic theorem provers as
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
  1279
background processes.  It generates calls to the "metis" method if
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
  1280
successful. These can be pasted into the proof.  Users do not have to
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
  1281
wait for the automatic provers to return.  WARNING: does not really
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
  1282
work with multi-threading.
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
  1283
24804
513bb015b469 added auto_quickcheck feature;
wenzelm
parents: 24801
diff changeset
  1284
* New "auto_quickcheck" feature tests outermost goal statements for
513bb015b469 added auto_quickcheck feature;
wenzelm
parents: 24801
diff changeset
  1285
potential counter-examples.  Controlled by ML references
513bb015b469 added auto_quickcheck feature;
wenzelm
parents: 24801
diff changeset
  1286
auto_quickcheck (default true) and auto_quickcheck_time_limit (default
25129
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
  1287
5000 milliseconds).  Fails silently if statements is outside of
de54445dc82c misc tuning;
wenzelm
parents: 25127
diff changeset
  1288
executable fragment, or any other codgenerator problem occurs.
24804
513bb015b469 added auto_quickcheck feature;
wenzelm
parents: 24801
diff changeset
  1289
25184
haftmann
parents: 25177
diff changeset
  1290
* New constant "undefined" with axiom "undefined x = undefined".
haftmann
parents: 25177
diff changeset
  1291
haftmann
parents: 25177
diff changeset
  1292
* Added class "HOL.eq", allowing for code generation with polymorphic
haftmann
parents: 25177
diff changeset
  1293
equality.
haftmann
parents: 25177
diff changeset
  1294
haftmann
parents: 25177
diff changeset
  1295
* Some renaming of class constants due to canonical name prefixing in
haftmann
parents: 25177
diff changeset
  1296
the new 'class' package:
haftmann
parents: 25177
diff changeset
  1297
haftmann
parents: 25177
diff changeset
  1298
    HOL.abs ~> HOL.abs_class.abs
haftmann
parents: 25177
diff changeset
  1299
    HOL.divide ~> HOL.divide_class.divide
haftmann
parents: 25177
diff changeset
  1300
    0 ~> HOL.zero_class.zero
haftmann
parents: 25177
diff changeset
  1301
    1 ~> HOL.one_class.one
haftmann
parents: 25177
diff changeset
  1302
    op + ~> HOL.plus_class.plus
haftmann
parents: 25177
diff changeset
  1303
    op - ~> HOL.minus_class.minus
haftmann
parents: 25177
diff changeset
  1304
    uminus ~> HOL.minus_class.uminus
haftmann
parents: 25177
diff changeset
  1305
    op * ~> HOL.times_class.times
haftmann
parents: 25177
diff changeset
  1306
    op < ~> HOL.ord_class.less
haftmann
parents: 25177
diff changeset
  1307
    op <= > HOL.ord_class.less_eq
haftmann
parents: 25177
diff changeset
  1308
    Nat.power ~> Power.power_class.power
haftmann
parents: 25177
diff changeset
  1309
    Nat.size ~> Nat.size_class.size
haftmann
parents: 25177
diff changeset
  1310
    Numeral.number_of ~> Numeral.number_class.number_of
haftmann
parents: 25177
diff changeset
  1311
    FixedPoint.Inf ~> Lattices.complete_lattice_class.Inf
haftmann
parents: 25177
diff changeset
  1312
    FixedPoint.Sup ~> Lattices.complete_lattice_class.Sup
haftmann
parents: 25177
diff changeset
  1313
    Orderings.min ~> Orderings.ord_class.min
haftmann
parents: 25177
diff changeset
  1314
    Orderings.max ~> Orderings.ord_class.max
haftmann
parents: 25177
diff changeset
  1315
    Divides.op div ~> Divides.div_class.div
haftmann
parents: 25177
diff changeset
  1316
    Divides.op mod ~> Divides.div_class.mod
haftmann
parents: 25177
diff changeset
  1317
    Divides.op dvd ~> Divides.div_class.dvd
haftmann
parents: 25177
diff changeset
  1318
haftmann
parents: 25177
diff changeset
  1319
INCOMPATIBILITY.  Adaptions may be required in the following cases:
haftmann
parents: 25177
diff changeset
  1320
haftmann
parents: 25177
diff changeset
  1321
a) User-defined constants using any of the names "plus", "minus",
haftmann
parents: 25177
diff changeset
  1322
"times", "less" or "less_eq". The standard syntax translations for
haftmann
parents: 25177
diff changeset
  1323
"+", "-" and "*" may go wrong.  INCOMPATIBILITY: use more specific
haftmann
parents: 25177
diff changeset
  1324
names.
haftmann
parents: 25177
diff changeset
  1325
haftmann
parents: 25177
diff changeset
  1326
b) Variables named "plus", "minus", "times", "less", "less_eq"
haftmann
parents: 25177
diff changeset
  1327
INCOMPATIBILITY: use more specific names.
haftmann
parents: 25177
diff changeset
  1328
haftmann
parents: 25177
diff changeset
  1329
c) Permutative equations (e.g. "a + b = b + a")
haftmann
parents: 25177
diff changeset
  1330
Since the change of names also changes the order of terms, permutative
haftmann
parents: 25177
diff changeset
  1331
rewrite rules may get applied in a different order. Experience shows
haftmann
parents: 25177
diff changeset
  1332
that this is rarely the case (only two adaptions in the whole Isabelle
haftmann
parents: 25177
diff changeset
  1333
distribution).  INCOMPATIBILITY: rewrite proofs
haftmann
parents: 25177
diff changeset
  1334
haftmann
parents: 25177
diff changeset
  1335
d) ML code directly refering to constant names
haftmann
parents: 25177
diff changeset
  1336
This in general only affects hand-written proof tactics, simprocs and
haftmann
parents: 25177
diff changeset
  1337
so on.  INCOMPATIBILITY: grep your sourcecode and replace names.
haftmann
parents: 25177
diff changeset
  1338
Consider using @{const_name} antiquotation.
haftmann
parents: 25177
diff changeset
  1339
haftmann
parents: 25177
diff changeset
  1340
* New class "default" with associated constant "default".
haftmann
parents: 25177
diff changeset
  1341
haftmann
parents: 25177
diff changeset
  1342
* Function "sgn" is now overloaded and available on int, real, complex
haftmann
parents: 25177
diff changeset
  1343
(and other numeric types), using class "sgn".  Two possible defs of
haftmann
parents: 25177
diff changeset
  1344
sgn are given as equational assumptions in the classes sgn_if and
haftmann
parents: 25177
diff changeset
  1345
sgn_div_norm; ordered_idom now also inherits from sgn_if.
haftmann
parents: 25177
diff changeset
  1346
INCOMPATIBILITY.
haftmann
parents: 25177
diff changeset
  1347
haftmann
parents: 25177
diff changeset
  1348
* Locale "partial_order" now unified with class "order" (cf. theory
haftmann
parents: 25177
diff changeset
  1349
Orderings), added parameter "less".  INCOMPATIBILITY.
haftmann
parents: 25177
diff changeset
  1350
haftmann
parents: 25177
diff changeset
  1351
* Renamings in classes "order" and "linorder": facts "refl", "trans" and
haftmann
parents: 25177
diff changeset
  1352
"cases" to "order_refl", "order_trans" and "linorder_cases", to avoid
haftmann
parents: 25177
diff changeset
  1353
clashes with HOL "refl" and "trans".  INCOMPATIBILITY.
haftmann
parents: 25177
diff changeset
  1354
haftmann
parents: 25177
diff changeset
  1355
* Classes "order" and "linorder": potential INCOMPATIBILITY due to
haftmann
parents: 25177
diff changeset
  1356
changed order of proof goals in instance proofs.
haftmann
parents: 25177
diff changeset
  1357
haftmann
parents: 25177
diff changeset
  1358
* The transitivity reasoner for partial and linear orders is set up
haftmann
parents: 25177
diff changeset
  1359
for classes "order" and "linorder".  Instances of the reasoner are available
haftmann
parents: 25177
diff changeset
  1360
in all contexts importing or interpreting the corresponding locales.
haftmann
parents: 25177
diff changeset
  1361
Method "order" invokes the reasoner separately; the reasoner
haftmann
parents: 25177
diff changeset
  1362
is also integrated with the Simplifier as a solver.  Diagnostic
haftmann
parents: 25177
diff changeset
  1363
command 'print_orders' shows the available instances of the reasoner
haftmann
parents: 25177
diff changeset
  1364
in the current context.
haftmann
parents: 25177
diff changeset
  1365
haftmann
parents: 25177
diff changeset
  1366
* Localized monotonicity predicate in theory "Orderings"; integrated
haftmann
parents: 25177
diff changeset
  1367
lemmas max_of_mono and min_of_mono with this predicate.
haftmann
parents: 25177
diff changeset
  1368
INCOMPATIBILITY.
haftmann
parents: 25177
diff changeset
  1369
haftmann
parents: 25177
diff changeset
  1370
* Formulation of theorem "dense" changed slightly due to integration
haftmann
parents: 25177
diff changeset
  1371
with new class dense_linear_order.
haftmann
parents: 25177
diff changeset
  1372
haftmann
parents: 25177
diff changeset
  1373
* Uniform lattice theory development in HOL.
haftmann
parents: 25177
diff changeset
  1374
haftmann
parents: 25177
diff changeset
  1375
    constants "meet" and "join" now named "inf" and "sup"
haftmann
parents: 25177
diff changeset
  1376
    constant "Meet" now named "Inf"
haftmann
parents: 25177
diff changeset
  1377
haftmann
parents: 25177
diff changeset
  1378
    classes "meet_semilorder" and "join_semilorder" now named
haftmann
parents: 25177
diff changeset
  1379
      "lower_semilattice" and "upper_semilattice"
haftmann
parents: 25177
diff changeset
  1380
    class "lorder" now named "lattice"
haftmann
parents: 25177
diff changeset
  1381
    class "comp_lat" now named "complete_lattice"
haftmann
parents: 25177
diff changeset
  1382
haftmann
parents: 25177
diff changeset
  1383
    Instantiation of lattice classes allows explicit definitions
haftmann
parents: 25177
diff changeset
  1384
    for "inf" and "sup" operations (or "Inf" and "Sup" for complete lattices).
haftmann
parents: 25177
diff changeset
  1385
haftmann
parents: 25177
diff changeset
  1386
  INCOMPATIBILITY.  Theorem renames:
haftmann
parents: 25177
diff changeset
  1387
haftmann
parents: 25177
diff changeset
  1388
    meet_left_le            ~> inf_le1
haftmann
parents: 25177
diff changeset
  1389
    meet_right_le           ~> inf_le2
haftmann
parents: 25177
diff changeset
  1390
    join_left_le            ~> sup_ge1
haftmann
parents: 25177
diff changeset
  1391
    join_right_le           ~> sup_ge2
haftmann
parents: 25177
diff changeset
  1392
    meet_join_le            ~> inf_sup_ord
haftmann
parents: 25177
diff changeset
  1393
    le_meetI                ~> le_infI
haftmann
parents: 25177
diff changeset
  1394
    join_leI                ~> le_supI
haftmann
parents: 25177
diff changeset
  1395
    le_meet                 ~> le_inf_iff
haftmann
parents: 25177
diff changeset
  1396
    le_join                 ~> ge_sup_conv
haftmann
parents: 25177
diff changeset
  1397
    meet_idempotent         ~> inf_idem
haftmann
parents: 25177
diff changeset
  1398
    join_idempotent         ~> sup_idem
haftmann
parents: 25177
diff changeset
  1399
    meet_comm               ~> inf_commute
haftmann
parents: 25177
diff changeset
  1400
    join_comm               ~> sup_commute
haftmann
parents: 25177
diff changeset
  1401
    meet_leI1               ~> le_infI1
haftmann
parents: 25177
diff changeset
  1402
    meet_leI2               ~> le_infI2
haftmann
parents: 25177
diff changeset
  1403
    le_joinI1               ~> le_supI1
haftmann
parents: 25177
diff changeset
  1404
    le_joinI2               ~&g