NEWS
author blanchet
Thu Dec 01 13:34:14 2011 +0100 (2011-12-01)
changeset 45707 6bf7eec9b153
parent 45706 418846ea4f99
child 45748 cf79cc09cab4
permissions -rw-r--r--
added "minimize" option for more control over automatic minimization
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Isabelle NEWS -- history user-relevant changes
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==============================================
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New in this Isabelle version
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----------------------------
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*** General ***
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* Prover IDE (PIDE) improvements:
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  - markup for bound variables
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  - markup for types of term variables (e.g. displayed as tooltips)
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* Rule attributes in local theory declarations (e.g. locale or class)
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are now statically evaluated: the resulting theorem is stored instead
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of the original expression.  INCOMPATIBILITY in rare situations, where
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the historic accident of dynamic re-evaluation in interpretations
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etc. was exploited.
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* Commands 'lemmas' and 'theorems' allow local variables using 'for'
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declaration, and results are standardized before being stored.  Thus
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old-style "standard" after instantiation or composition of facts
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becomes obsolete.  Minor INCOMPATIBILITY, due to potential change of
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indices of schematic variables.
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* Renamed inner syntax categories "num" to "num_token" and "xnum" to
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"xnum_token", in accordance to existing "float_token".  Minor
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INCOMPATIBILITY.  Note that in practice "num_const" etc. are mainly
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used instead.
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*** Pure ***
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* Obsolete command 'types' has been discontinued.  Use 'type_synonym'
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instead.  INCOMPATIBILITY.
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* Ancient code generator for SML and its commands 'code_module',
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'code_library', 'consts_code', 'types_code' have been discontinued.
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Use commands of the generic code generator instead. INCOMPATIBILITY.
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* Redundant attribute 'code_inline' has been discontinued. Use
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'code_unfold' instead. INCOMPATIBILITY.
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* Sort constraints are now propagated in simultaneous statements, just
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like type constraints.  INCOMPATIBILITY in rare situations, where
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distinct sorts used to be assigned accidentally.  For example:
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  lemma "P (x::'a::foo)" and "Q (y::'a::bar)"  -- "now illegal"
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  lemma "P (x::'a)" and "Q (y::'a::bar)"
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    -- "now uniform 'a::bar instead of default sort for first occurence (!)"
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*** HOL ***
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* Session HOL-Word: Discontinued many redundant theorems specific to type
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'a word. INCOMPATIBILITY, use the corresponding generic theorems instead.
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  word_sub_alt ~> word_sub_wi
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  word_add_alt ~> word_add_def
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  word_mult_alt ~> word_mult_def
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  word_minus_alt ~> word_minus_def
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  word_0_alt ~> word_0_wi
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  word_1_alt ~> word_1_wi
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  word_add_0 ~> add_0_left
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  word_add_0_right ~> add_0_right
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  word_mult_1 ~> mult_1_left
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  word_mult_1_right ~> mult_1_right
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  word_add_commute ~> add_commute
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  word_add_assoc ~> add_assoc
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  word_add_left_commute ~> add_left_commute
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  word_mult_commute ~> mult_commute
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  word_mult_assoc ~> mult_assoc
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  word_mult_left_commute ~> mult_left_commute
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  word_left_distrib ~> left_distrib
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  word_right_distrib ~> right_distrib
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  word_left_minus ~> left_minus
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  word_diff_0_right ~> diff_0_right
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  word_diff_self ~> diff_self
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  word_add_ac ~> add_ac
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  word_mult_ac ~> mult_ac
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  word_plus_ac0 ~> add_0_left add_0_right add_ac
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  word_times_ac1 ~> mult_1_left mult_1_right mult_ac
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  word_order_trans ~> order_trans
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  word_order_refl ~> order_refl
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  word_order_antisym ~> order_antisym
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  word_order_linear ~> linorder_linear
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* Clarified attribute "mono_set": pure declararation without modifying
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the result of the fact expression.
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* "Transitive_Closure.ntrancl": bounded transitive closure on
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relations.
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* Constant "Set.not_member" now qualifed.  INCOMPATIBILITY.
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* "sublists" moved to theory More_List.  INCOMPATIBILITY.
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* Theory Int: Discontinued many legacy theorems specific to type int.
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INCOMPATIBILITY, use the corresponding generic theorems instead.
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  zminus_zminus ~> minus_minus
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  zminus_0 ~> minus_zero
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  zminus_zadd_distrib ~> minus_add_distrib
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  zadd_commute ~> add_commute
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  zadd_assoc ~> add_assoc
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  zadd_left_commute ~> add_left_commute
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  zadd_ac ~> add_ac
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  zmult_ac ~> mult_ac
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  zadd_0 ~> add_0_left
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  zadd_0_right ~> add_0_right
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  zadd_zminus_inverse2 ~> left_minus
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  zmult_zminus ~> mult_minus_left
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  zmult_commute ~> mult_commute
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  zmult_assoc ~> mult_assoc
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  zadd_zmult_distrib ~> left_distrib
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  zadd_zmult_distrib2 ~> right_distrib
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  zdiff_zmult_distrib ~> left_diff_distrib
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  zdiff_zmult_distrib2 ~> right_diff_distrib
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  zmult_1 ~> mult_1_left
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  zmult_1_right ~> mult_1_right
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  zle_refl ~> order_refl
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  zle_trans ~> order_trans
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  zle_antisym ~> order_antisym
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  zle_linear ~> linorder_linear
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  zless_linear ~> linorder_less_linear
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  zadd_left_mono ~> add_left_mono
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  zadd_strict_right_mono ~> add_strict_right_mono
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  zadd_zless_mono ~> add_less_le_mono
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  int_0_less_1 ~> zero_less_one
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  int_0_neq_1 ~> zero_neq_one
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  zless_le ~> less_le
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  zpower_zadd_distrib ~> power_add
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  zero_less_zpower_abs_iff ~> zero_less_power_abs_iff
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  zero_le_zpower_abs ~> zero_le_power_abs
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* New "case_product" attribute to generate a case rule doing multiple
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case distinctions at the same time.  E.g.
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  list.exhaust [case_product nat.exhaust]
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produces a rule which can be used to perform case distinction on both
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a list and a nat.
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* Nitpick:
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  - Fixed infinite loop caused by the 'peephole_optim' option and
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    affecting 'rat' and 'real'.
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* Sledgehammer:
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  - Added "lam_trans" and "minimize" options.
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  - Renamed "slicing" ("no_slicing") option to "slice" ("dont_slice").
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* Metis:
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  - Added possibility to specify lambda translations scheme as a
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    parenthesized argument (e.g., "by (metis (lam_lifting) ...)").
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*** FOL ***
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* New "case_product" attribute (see HOL).
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*** ML ***
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* Antiquotation @{attributes [...]} embeds attribute source
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representation into the ML text, which is particularly useful with
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declarations like Local_Theory.note.
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* Structure Proof_Context follows standard naming scheme.  Old
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ProofContext has been discontinued.  INCOMPATIBILITY.
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* Refined Local_Theory.declaration {syntax, pervasive}, with subtle
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change of semantics: update is applied to auxiliary local theory
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context as well.
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* Modernized some old-style infix operations:
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  addeqcongs    ~> Simplifier.add_eqcong
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  deleqcongs    ~> Simplifier.del_eqcong
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  addcongs      ~> Simplifier.add_cong
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  delcongs      ~> Simplifier.del_cong
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  setmksimps    ~> Simplifier.set_mksimps
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  setmkcong     ~> Simplifier.set_mkcong
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  setmksym      ~> Simplifier.set_mksym
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  setmkeqTrue   ~> Simplifier.set_mkeqTrue
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  settermless   ~> Simplifier.set_termless
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  setsubgoaler  ~> Simplifier.set_subgoaler
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  addsplits     ~> Splitter.add_split
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  delsplits     ~> Splitter.del_split
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New in Isabelle2011-1 (October 2011)
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------------------------------------
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*** General ***
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* Improved Isabelle/jEdit Prover IDE (PIDE), which can be invoked as
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"isabelle jedit" or "ISABELLE_HOME/Isabelle" on the command line.
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  - Management of multiple theory files directly from the editor
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    buffer store -- bypassing the file-system (no requirement to save
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    files for checking).
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  - Markup of formal entities within the text buffer, with semantic
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    highlighting, tooltips and hyperlinks to jump to defining source
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    positions.
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  - Improved text rendering, with sub/superscripts in the source
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    buffer (including support for copy/paste wrt. output panel, HTML
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    theory output and other non-Isabelle text boxes).
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  - Refined scheduling of proof checking and printing of results,
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    based on interactive editor view.  (Note: jEdit folding and
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    narrowing allows to restrict buffer perspectives explicitly.)
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  - Reduced CPU performance requirements, usable on machines with few
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    cores.
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  - Reduced memory requirements due to pruning of unused document
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    versions (garbage collection).
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See also ~~/src/Tools/jEdit/README.html for further information,
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including some remaining limitations.
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* Theory loader: source files are exclusively located via the master
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directory of each theory node (where the .thy file itself resides).
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The global load path (such as src/HOL/Library) has been discontinued.
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Note that the path element ~~ may be used to reference theories in the
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Isabelle home folder -- for instance, "~~/src/HOL/Library/FuncSet".
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INCOMPATIBILITY.
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* Theory loader: source files are identified by content via SHA1
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digests.  Discontinued former path/modtime identification and optional
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ISABELLE_FILE_IDENT plugin scripts.
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* Parallelization of nested Isar proofs is subject to
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Goal.parallel_proofs_threshold (default 100).  See also isabelle
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usedir option -Q.
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* Name space: former unsynchronized references are now proper
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configuration options, with more conventional names:
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  long_names   ~> names_long
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  short_names  ~> names_short
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  unique_names ~> names_unique
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Minor INCOMPATIBILITY, need to declare options in context like this:
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  declare [[names_unique = false]]
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* Literal facts `prop` may contain dummy patterns, e.g. `_ = _`.  Note
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that the result needs to be unique, which means fact specifications
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may have to be refined after enriching a proof context.
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* Attribute "case_names" has been refined: the assumptions in each case
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can be named now by following the case name with [name1 name2 ...].
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* Isabelle/Isar reference manual has been updated and extended:
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  - "Synopsis" provides a catalog of main Isar language concepts.
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  - Formal references in syntax diagrams, via @{rail} antiquotation.
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  - Updated material from classic "ref" manual, notably about
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    "Classical Reasoner".
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*** HOL ***
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* Class bot and top require underlying partial order rather than
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preorder: uniqueness of bot and top is guaranteed.  INCOMPATIBILITY.
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* Class complete_lattice: generalized a couple of lemmas from sets;
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generalized theorems INF_cong and SUP_cong.  New type classes for
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complete boolean algebras and complete linear orders.  Lemmas
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Inf_less_iff, less_Sup_iff, INF_less_iff, less_SUP_iff now reside in
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class complete_linorder.
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Changed proposition of lemmas Inf_bool_def, Sup_bool_def, Inf_fun_def,
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Sup_fun_def, Inf_apply, Sup_apply.
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Removed redundant lemmas (the right hand side gives hints how to
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replace them for (metis ...), or (simp only: ...) proofs):
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  Inf_singleton ~> Inf_insert [where A="{}", unfolded Inf_empty inf_top_right]
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  Sup_singleton ~> Sup_insert [where A="{}", unfolded Sup_empty sup_bot_right]
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  Inf_binary ~> Inf_insert, Inf_empty, and inf_top_right
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  Sup_binary ~> Sup_insert, Sup_empty, and sup_bot_right
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  Int_eq_Inter ~> Inf_insert, Inf_empty, and inf_top_right
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  Un_eq_Union ~> Sup_insert, Sup_empty, and sup_bot_right
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  Inter_def ~> INF_def, image_def
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  Union_def ~> SUP_def, image_def
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  INT_eq ~> INF_def, and image_def
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  UN_eq ~> SUP_def, and image_def
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  INF_subset ~> INF_superset_mono [OF _ order_refl]
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More consistent and comprehensive names:
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  INTER_eq_Inter_image ~> INF_def
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  UNION_eq_Union_image ~> SUP_def
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  INFI_def ~> INF_def
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  SUPR_def ~> SUP_def
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  INF_leI ~> INF_lower
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  INF_leI2 ~> INF_lower2
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  le_INFI ~> INF_greatest
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  le_SUPI ~> SUP_upper
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  le_SUPI2 ~> SUP_upper2
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  SUP_leI ~> SUP_least
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  INFI_bool_eq ~> INF_bool_eq
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  SUPR_bool_eq ~> SUP_bool_eq
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  INFI_apply ~> INF_apply
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  SUPR_apply ~> SUP_apply
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  INTER_def ~> INTER_eq
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  UNION_def ~> UNION_eq
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INCOMPATIBILITY.
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* Renamed theory Complete_Lattice to Complete_Lattices.
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INCOMPATIBILITY.
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* Theory Complete_Lattices: lemmas Inf_eq_top_iff, INF_eq_top_iff,
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INF_image, Inf_insert, INF_top, Inf_top_conv, INF_top_conv, SUP_bot,
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Sup_bot_conv, SUP_bot_conv, Sup_eq_top_iff, SUP_eq_top_iff, SUP_image,
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Sup_insert are now declared as [simp].  INCOMPATIBILITY.
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* Theory Lattice: lemmas compl_inf_bot, compl_le_comp_iff,
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compl_sup_top, inf_idem, inf_left_idem, inf_sup_absorb, sup_idem,
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sup_inf_absob, sup_left_idem are now declared as [simp].  Minor
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INCOMPATIBILITY.
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* Added syntactic classes "inf" and "sup" for the respective
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constants.  INCOMPATIBILITY: Changes in the argument order of the
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(mostly internal) locale predicates for some derived classes.
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* Theorem collections ball_simps and bex_simps do not contain theorems
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referring to UNION any longer; these have been moved to collection
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UN_ball_bex_simps.  INCOMPATIBILITY.
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* Theory Archimedean_Field: floor now is defined as parameter of a
wenzelm@44800
   338
separate type class floor_ceiling.
wenzelm@44800
   339
wenzelm@44800
   340
* Theory Finite_Set: more coherent development of fold_set locales:
haftmann@42874
   341
haftmann@42874
   342
    locale fun_left_comm ~> locale comp_fun_commute
haftmann@42874
   343
    locale fun_left_comm_idem ~> locale comp_fun_idem
wenzelm@44800
   344
wenzelm@44800
   345
Both use point-free characterization; interpretation proofs may need
wenzelm@44800
   346
adjustment.  INCOMPATIBILITY.
haftmann@42874
   347
wenzelm@44800
   348
* Theory Limits: Type "'a net" has been renamed to "'a filter", in
huffman@44081
   349
accordance with standard mathematical terminology. INCOMPATIBILITY.
huffman@44081
   350
wenzelm@44800
   351
* Theory Complex_Main: The locale interpretations for the
wenzelm@44800
   352
bounded_linear and bounded_bilinear locales have been removed, in
wenzelm@44800
   353
order to reduce the number of duplicate lemmas. Users must use the
wenzelm@44800
   354
original names for distributivity theorems, potential INCOMPATIBILITY.
huffman@44282
   355
huffman@44282
   356
  divide.add ~> add_divide_distrib
huffman@44282
   357
  divide.diff ~> diff_divide_distrib
huffman@44282
   358
  divide.setsum ~> setsum_divide_distrib
huffman@44282
   359
  mult.add_right ~> right_distrib
huffman@44282
   360
  mult.diff_right ~> right_diff_distrib
huffman@44282
   361
  mult_right.setsum ~> setsum_right_distrib
huffman@44282
   362
  mult_left.diff ~> left_diff_distrib
huffman@44282
   363
wenzelm@44800
   364
* Theory Complex_Main: Several redundant theorems have been removed or
huffman@44568
   365
replaced by more general versions. INCOMPATIBILITY.
huffman@44522
   366
huffman@45051
   367
  real_diff_def ~> minus_real_def
huffman@45051
   368
  real_divide_def ~> divide_real_def
huffman@45051
   369
  real_less_def ~> less_le
huffman@45051
   370
  real_abs_def ~> abs_real_def
huffman@45051
   371
  real_sgn_def ~> sgn_real_def
huffman@45051
   372
  real_mult_commute ~> mult_commute
huffman@45051
   373
  real_mult_assoc ~> mult_assoc
huffman@45051
   374
  real_mult_1 ~> mult_1_left
huffman@45051
   375
  real_add_mult_distrib ~> left_distrib
huffman@45051
   376
  real_zero_not_eq_one ~> zero_neq_one
huffman@45051
   377
  real_mult_inverse_left ~> left_inverse
huffman@45051
   378
  INVERSE_ZERO ~> inverse_zero
huffman@45051
   379
  real_le_refl ~> order_refl
huffman@45051
   380
  real_le_antisym ~> order_antisym
huffman@45051
   381
  real_le_trans ~> order_trans
huffman@45051
   382
  real_le_linear ~> linear
huffman@45051
   383
  real_le_eq_diff ~> le_iff_diff_le_0
huffman@45051
   384
  real_add_left_mono ~> add_left_mono
huffman@45051
   385
  real_mult_order ~> mult_pos_pos
huffman@45051
   386
  real_mult_less_mono2 ~> mult_strict_left_mono
huffman@44822
   387
  real_of_int_real_of_nat ~> real_of_int_of_nat_eq
huffman@44522
   388
  real_0_le_divide_iff ~> zero_le_divide_iff
huffman@44522
   389
  realpow_two_disj ~> power2_eq_iff
huffman@44522
   390
  real_squared_diff_one_factored ~> square_diff_one_factored
huffman@44522
   391
  realpow_two_diff ~> square_diff_square_factored
huffman@44669
   392
  reals_complete2 ~> complete_real
huffman@44749
   393
  real_sum_squared_expand ~> power2_sum
huffman@44522
   394
  exp_ln_eq ~> ln_unique
huffman@44711
   395
  expi_add ~> exp_add
huffman@44711
   396
  expi_zero ~> exp_zero
huffman@44522
   397
  lemma_DERIV_subst ~> DERIV_cong
huffman@44568
   398
  LIMSEQ_Zfun_iff ~> tendsto_Zfun_iff
huffman@44568
   399
  LIMSEQ_const ~> tendsto_const
huffman@44568
   400
  LIMSEQ_norm ~> tendsto_norm
huffman@44568
   401
  LIMSEQ_add ~> tendsto_add
huffman@44568
   402
  LIMSEQ_minus ~> tendsto_minus
huffman@44568
   403
  LIMSEQ_minus_cancel ~> tendsto_minus_cancel
huffman@44568
   404
  LIMSEQ_diff ~> tendsto_diff
huffman@44568
   405
  bounded_linear.LIMSEQ ~> bounded_linear.tendsto
huffman@44568
   406
  bounded_bilinear.LIMSEQ ~> bounded_bilinear.tendsto
huffman@44568
   407
  LIMSEQ_mult ~> tendsto_mult
huffman@44568
   408
  LIMSEQ_inverse ~> tendsto_inverse
huffman@44568
   409
  LIMSEQ_divide ~> tendsto_divide
huffman@44568
   410
  LIMSEQ_pow ~> tendsto_power
huffman@44568
   411
  LIMSEQ_setsum ~> tendsto_setsum
huffman@44568
   412
  LIMSEQ_setprod ~> tendsto_setprod
huffman@44568
   413
  LIMSEQ_norm_zero ~> tendsto_norm_zero_iff
huffman@44568
   414
  LIMSEQ_rabs_zero ~> tendsto_rabs_zero_iff
huffman@44568
   415
  LIMSEQ_imp_rabs ~> tendsto_rabs
huffman@44710
   416
  LIMSEQ_add_minus ~> tendsto_add [OF _ tendsto_minus]
huffman@44710
   417
  LIMSEQ_add_const ~> tendsto_add [OF _ tendsto_const]
huffman@44710
   418
  LIMSEQ_diff_const ~> tendsto_diff [OF _ tendsto_const]
huffman@44748
   419
  LIMSEQ_Complex ~> tendsto_Complex
huffman@44568
   420
  LIM_ident ~> tendsto_ident_at
huffman@44568
   421
  LIM_const ~> tendsto_const
huffman@44568
   422
  LIM_add ~> tendsto_add
huffman@44568
   423
  LIM_add_zero ~> tendsto_add_zero
huffman@44568
   424
  LIM_minus ~> tendsto_minus
huffman@44568
   425
  LIM_diff ~> tendsto_diff
huffman@44568
   426
  LIM_norm ~> tendsto_norm
huffman@44568
   427
  LIM_norm_zero ~> tendsto_norm_zero
huffman@44568
   428
  LIM_norm_zero_cancel ~> tendsto_norm_zero_cancel
huffman@44568
   429
  LIM_norm_zero_iff ~> tendsto_norm_zero_iff
huffman@44568
   430
  LIM_rabs ~> tendsto_rabs
huffman@44568
   431
  LIM_rabs_zero ~> tendsto_rabs_zero
huffman@44568
   432
  LIM_rabs_zero_cancel ~> tendsto_rabs_zero_cancel
huffman@44568
   433
  LIM_rabs_zero_iff ~> tendsto_rabs_zero_iff
huffman@44568
   434
  LIM_compose ~> tendsto_compose
huffman@44568
   435
  LIM_mult ~> tendsto_mult
huffman@44568
   436
  LIM_scaleR ~> tendsto_scaleR
huffman@44568
   437
  LIM_of_real ~> tendsto_of_real
huffman@44568
   438
  LIM_power ~> tendsto_power
huffman@44568
   439
  LIM_inverse ~> tendsto_inverse
huffman@44568
   440
  LIM_sgn ~> tendsto_sgn
huffman@44568
   441
  isCont_LIM_compose ~> isCont_tendsto_compose
huffman@44568
   442
  bounded_linear.LIM ~> bounded_linear.tendsto
huffman@44568
   443
  bounded_linear.LIM_zero ~> bounded_linear.tendsto_zero
huffman@44568
   444
  bounded_bilinear.LIM ~> bounded_bilinear.tendsto
huffman@44568
   445
  bounded_bilinear.LIM_prod_zero ~> bounded_bilinear.tendsto_zero
huffman@44568
   446
  bounded_bilinear.LIM_left_zero ~> bounded_bilinear.tendsto_left_zero
huffman@44568
   447
  bounded_bilinear.LIM_right_zero ~> bounded_bilinear.tendsto_right_zero
huffman@44568
   448
  LIM_inverse_fun ~> tendsto_inverse [OF tendsto_ident_at]
huffman@44522
   449
wenzelm@44967
   450
* Theory Complex_Main: The definition of infinite series was
wenzelm@44967
   451
generalized.  Now it is defined on the type class {topological_space,
wenzelm@44967
   452
comm_monoid_add}.  Hence it is useable also for extended real numbers.
wenzelm@42484
   453
huffman@44908
   454
* Theory Complex_Main: The complex exponential function "expi" is now
huffman@44908
   455
a type-constrained abbreviation for "exp :: complex => complex"; thus
huffman@44908
   456
several polymorphic lemmas about "exp" are now applicable to "expi".
huffman@44908
   457
wenzelm@44968
   458
* Code generation:
wenzelm@44968
   459
wenzelm@44968
   460
  - Theory Library/Code_Char_ord provides native ordering of
wenzelm@44968
   461
    characters in the target language.
wenzelm@44968
   462
wenzelm@44968
   463
  - Commands code_module and code_library are legacy, use export_code
wenzelm@44968
   464
    instead.
wenzelm@44968
   465
wenzelm@44968
   466
  - Method "evaluation" is legacy, use method "eval" instead.
wenzelm@44968
   467
wenzelm@44968
   468
  - Legacy evaluator "SML" is deactivated by default.  May be
wenzelm@44968
   469
    reactivated by the following theory command:
wenzelm@44968
   470
wenzelm@44968
   471
      setup {* Value.add_evaluator ("SML", Codegen.eval_term) *}
wenzelm@44968
   472
wenzelm@44968
   473
* Declare ext [intro] by default.  Rare INCOMPATIBILITY.
wenzelm@44968
   474
wenzelm@45088
   475
* New proof method "induction" that gives induction hypotheses the
wenzelm@45088
   476
name "IH", thus distinguishing them from further hypotheses that come
wenzelm@45088
   477
from rule induction.  The latter are still called "hyps".  Method
wenzelm@45088
   478
"induction" is a thin wrapper around "induct" and follows the same
wenzelm@45088
   479
syntax.
wenzelm@45088
   480
wenzelm@44968
   481
* Method "fastsimp" has been renamed to "fastforce", but "fastsimp" is
wenzelm@44968
   482
still available as a legacy feature for some time.
wenzelm@44968
   483
wenzelm@44968
   484
* Nitpick:
wenzelm@44968
   485
  - Added "need" and "total_consts" options.
wenzelm@44968
   486
  - Reintroduced "show_skolems" option by popular demand.
wenzelm@44968
   487
  - Renamed attribute: nitpick_def ~> nitpick_unfold.
wenzelm@44968
   488
    INCOMPATIBILITY.
wenzelm@44968
   489
wenzelm@44968
   490
* Sledgehammer:
wenzelm@44968
   491
  - Use quasi-sound (and efficient) translations by default.
wenzelm@44968
   492
  - Added support for the following provers: E-ToFoF, LEO-II,
wenzelm@44968
   493
    Satallax, SNARK, Waldmeister, and Z3 with TPTP syntax.
wenzelm@44968
   494
  - Automatically preplay and minimize proofs before showing them if
wenzelm@44968
   495
    this can be done within reasonable time.
wenzelm@44968
   496
  - sledgehammer available_provers ~> sledgehammer supported_provers.
wenzelm@44968
   497
    INCOMPATIBILITY.
wenzelm@44968
   498
  - Added "preplay_timeout", "slicing", "type_enc", "sound",
wenzelm@44968
   499
    "max_mono_iters", and "max_new_mono_instances" options.
wenzelm@44968
   500
  - Removed "explicit_apply" and "full_types" options as well as "Full
wenzelm@44968
   501
    Types" Proof General menu item. INCOMPATIBILITY.
wenzelm@44968
   502
wenzelm@44968
   503
* Metis:
wenzelm@44968
   504
  - Removed "metisF" -- use "metis" instead. INCOMPATIBILITY.
wenzelm@44968
   505
  - Obsoleted "metisFT" -- use "metis (full_types)" instead.
wenzelm@44968
   506
    INCOMPATIBILITY.
wenzelm@44968
   507
wenzelm@44968
   508
* Command 'try':
wenzelm@44968
   509
  - Renamed 'try_methods' and added "simp:", "intro:", "dest:", and
wenzelm@44968
   510
    "elim:" options. INCOMPATIBILITY.
wenzelm@44968
   511
  - Introduced 'try' that not only runs 'try_methods' but also
wenzelm@44968
   512
    'solve_direct', 'sledgehammer', 'quickcheck', and 'nitpick'.
wenzelm@44968
   513
wenzelm@44968
   514
* Quickcheck:
wenzelm@44968
   515
  - Added "eval" option to evaluate terms for the found counterexample
wenzelm@44968
   516
    (currently only supported by the default (exhaustive) tester).
wenzelm@44968
   517
  - Added post-processing of terms to obtain readable counterexamples
wenzelm@44968
   518
    (currently only supported by the default (exhaustive) tester).
wenzelm@44968
   519
  - New counterexample generator quickcheck[narrowing] enables
wenzelm@44968
   520
    narrowing-based testing.  Requires the Glasgow Haskell compiler
wenzelm@44968
   521
    with its installation location defined in the Isabelle settings
wenzelm@44968
   522
    environment as ISABELLE_GHC.
wenzelm@44968
   523
  - Removed quickcheck tester "SML" based on the SML code generator
wenzelm@44968
   524
    (formly in HOL/Library).
wenzelm@44968
   525
wenzelm@44968
   526
* Function package: discontinued option "tailrec".  INCOMPATIBILITY,
wenzelm@44968
   527
use 'partial_function' instead.
wenzelm@44968
   528
wenzelm@44968
   529
* Theory Library/Extended_Reals replaces now the positive extended
wenzelm@44968
   530
reals found in probability theory. This file is extended by
wenzelm@44968
   531
Multivariate_Analysis/Extended_Real_Limits.
wenzelm@44968
   532
wenzelm@44974
   533
* Theory Library/Old_Recdef: old 'recdef' package has been moved here,
wenzelm@44974
   534
from where it must be imported explicitly if it is really required.
wenzelm@44974
   535
INCOMPATIBILITY.
wenzelm@44968
   536
wenzelm@44968
   537
* Theory Library/Wfrec: well-founded recursion combinator "wfrec" has
wenzelm@44968
   538
been moved here.  INCOMPATIBILITY.
wenzelm@44968
   539
wenzelm@44968
   540
* Theory Library/Saturated provides type of numbers with saturated
wenzelm@44968
   541
arithmetic.
wenzelm@44968
   542
wenzelm@44968
   543
* Theory Library/Product_Lattice defines a pointwise ordering for the
wenzelm@44968
   544
product type 'a * 'b, and provides instance proofs for various order
wenzelm@44968
   545
and lattice type classes.
wenzelm@44968
   546
wenzelm@44968
   547
* Theory Library/Countable now provides the "countable_datatype" proof
wenzelm@44968
   548
method for proving "countable" class instances for datatypes.
wenzelm@44968
   549
wenzelm@44968
   550
* Theory Library/Cset_Monad allows do notation for computable sets
wenzelm@44968
   551
(cset) via the generic monad ad-hoc overloading facility.
wenzelm@44968
   552
wenzelm@44968
   553
* Library: Theories of common data structures are split into theories
wenzelm@44968
   554
for implementation, an invariant-ensuring type, and connection to an
wenzelm@44968
   555
abstract type. INCOMPATIBILITY.
wenzelm@44968
   556
wenzelm@44968
   557
  - RBT is split into RBT and RBT_Mapping.
wenzelm@44968
   558
  - AssocList is split and renamed into AList and AList_Mapping.
wenzelm@44968
   559
  - DList is split into DList_Impl, DList, and DList_Cset.
wenzelm@44968
   560
  - Cset is split into Cset and List_Cset.
wenzelm@44968
   561
wenzelm@44968
   562
* Theory Library/Nat_Infinity has been renamed to
wenzelm@44968
   563
Library/Extended_Nat, with name changes of the following types and
wenzelm@44968
   564
constants:
wenzelm@44968
   565
wenzelm@44968
   566
  type inat   ~> type enat
wenzelm@44968
   567
  Fin         ~> enat
wenzelm@44968
   568
  Infty       ~> infinity (overloaded)
wenzelm@44968
   569
  iSuc        ~> eSuc
wenzelm@44968
   570
  the_Fin     ~> the_enat
wenzelm@44968
   571
wenzelm@44968
   572
Every theorem name containing "inat", "Fin", "Infty", or "iSuc" has
wenzelm@44968
   573
been renamed accordingly. INCOMPATIBILITY.
wenzelm@44968
   574
wenzelm@44968
   575
* Session Multivariate_Analysis: The euclidean_space type class now
wenzelm@44968
   576
fixes a constant "Basis :: 'a set" consisting of the standard
wenzelm@44968
   577
orthonormal basis for the type. Users now have the option of
wenzelm@44968
   578
quantifying over this set instead of using the "basis" function, e.g.
wenzelm@44968
   579
"ALL x:Basis. P x" vs "ALL i<DIM('a). P (basis i)".
wenzelm@44968
   580
wenzelm@44968
   581
* Session Multivariate_Analysis: Type "('a, 'b) cart" has been renamed
wenzelm@44968
   582
to "('a, 'b) vec" (the syntax "'a ^ 'b" remains unaffected). Constants
wenzelm@44968
   583
"Cart_nth" and "Cart_lambda" have been respectively renamed to
wenzelm@44968
   584
"vec_nth" and "vec_lambda"; theorems mentioning those names have
wenzelm@44968
   585
changed to match. Definition theorems for overloaded constants now use
wenzelm@44968
   586
the standard "foo_vec_def" naming scheme. A few other theorems have
wenzelm@44968
   587
been renamed as follows (INCOMPATIBILITY):
wenzelm@44968
   588
wenzelm@44968
   589
  Cart_eq          ~> vec_eq_iff
wenzelm@44968
   590
  dist_nth_le_cart ~> dist_vec_nth_le
wenzelm@44968
   591
  tendsto_vector   ~> vec_tendstoI
wenzelm@44968
   592
  Cauchy_vector    ~> vec_CauchyI
wenzelm@44968
   593
wenzelm@44968
   594
* Session Multivariate_Analysis: Several duplicate theorems have been
wenzelm@44968
   595
removed, and other theorems have been renamed or replaced with more
wenzelm@44968
   596
general versions. INCOMPATIBILITY.
wenzelm@44968
   597
wenzelm@44968
   598
  finite_choice ~> finite_set_choice
wenzelm@44968
   599
  eventually_conjI ~> eventually_conj
wenzelm@44968
   600
  eventually_and ~> eventually_conj_iff
wenzelm@44968
   601
  eventually_false ~> eventually_False
wenzelm@44968
   602
  setsum_norm ~> norm_setsum
wenzelm@44968
   603
  Lim_sequentially ~> LIMSEQ_def
wenzelm@44968
   604
  Lim_ident_at ~> LIM_ident
wenzelm@44968
   605
  Lim_const ~> tendsto_const
wenzelm@44968
   606
  Lim_cmul ~> tendsto_scaleR [OF tendsto_const]
wenzelm@44968
   607
  Lim_neg ~> tendsto_minus
wenzelm@44968
   608
  Lim_add ~> tendsto_add
wenzelm@44968
   609
  Lim_sub ~> tendsto_diff
wenzelm@44968
   610
  Lim_mul ~> tendsto_scaleR
wenzelm@44968
   611
  Lim_vmul ~> tendsto_scaleR [OF _ tendsto_const]
wenzelm@44968
   612
  Lim_null_norm ~> tendsto_norm_zero_iff [symmetric]
wenzelm@44968
   613
  Lim_linear ~> bounded_linear.tendsto
wenzelm@44968
   614
  Lim_component ~> tendsto_euclidean_component
wenzelm@44968
   615
  Lim_component_cart ~> tendsto_vec_nth
wenzelm@44968
   616
  Lim_inner ~> tendsto_inner [OF tendsto_const]
wenzelm@44968
   617
  dot_lsum ~> inner_setsum_left
wenzelm@44968
   618
  dot_rsum ~> inner_setsum_right
wenzelm@44968
   619
  continuous_cmul ~> continuous_scaleR [OF continuous_const]
wenzelm@44968
   620
  continuous_neg ~> continuous_minus
wenzelm@44968
   621
  continuous_sub ~> continuous_diff
wenzelm@44968
   622
  continuous_vmul ~> continuous_scaleR [OF _ continuous_const]
wenzelm@44968
   623
  continuous_mul ~> continuous_scaleR
wenzelm@44968
   624
  continuous_inv ~> continuous_inverse
wenzelm@44968
   625
  continuous_at_within_inv ~> continuous_at_within_inverse
wenzelm@44968
   626
  continuous_at_inv ~> continuous_at_inverse
wenzelm@44968
   627
  continuous_at_norm ~> continuous_norm [OF continuous_at_id]
wenzelm@44968
   628
  continuous_at_infnorm ~> continuous_infnorm [OF continuous_at_id]
wenzelm@44968
   629
  continuous_at_component ~> continuous_component [OF continuous_at_id]
wenzelm@44968
   630
  continuous_on_neg ~> continuous_on_minus
wenzelm@44968
   631
  continuous_on_sub ~> continuous_on_diff
wenzelm@44968
   632
  continuous_on_cmul ~> continuous_on_scaleR [OF continuous_on_const]
wenzelm@44968
   633
  continuous_on_vmul ~> continuous_on_scaleR [OF _ continuous_on_const]
wenzelm@44968
   634
  continuous_on_mul ~> continuous_on_scaleR
wenzelm@44968
   635
  continuous_on_mul_real ~> continuous_on_mult
wenzelm@44968
   636
  continuous_on_inner ~> continuous_on_inner [OF continuous_on_const]
wenzelm@44968
   637
  continuous_on_norm ~> continuous_on_norm [OF continuous_on_id]
wenzelm@44968
   638
  continuous_on_inverse ~> continuous_on_inv
wenzelm@44968
   639
  uniformly_continuous_on_neg ~> uniformly_continuous_on_minus
wenzelm@44968
   640
  uniformly_continuous_on_sub ~> uniformly_continuous_on_diff
wenzelm@44968
   641
  subset_interior ~> interior_mono
wenzelm@44968
   642
  subset_closure ~> closure_mono
wenzelm@44968
   643
  closure_univ ~> closure_UNIV
wenzelm@44968
   644
  real_arch_lt ~> reals_Archimedean2
wenzelm@44968
   645
  real_arch ~> reals_Archimedean3
wenzelm@44968
   646
  real_abs_norm ~> abs_norm_cancel
wenzelm@44968
   647
  real_abs_sub_norm ~> norm_triangle_ineq3
wenzelm@44968
   648
  norm_cauchy_schwarz_abs ~> Cauchy_Schwarz_ineq2
wenzelm@44968
   649
wenzelm@44968
   650
* Session HOL-Probability:
wenzelm@44968
   651
  - Caratheodory's extension lemma is now proved for ring_of_sets.
wenzelm@44968
   652
  - Infinite products of probability measures are now available.
wenzelm@44968
   653
  - Sigma closure is independent, if the generator is independent
wenzelm@44968
   654
  - Use extended reals instead of positive extended
wenzelm@44968
   655
    reals. INCOMPATIBILITY.
wenzelm@44968
   656
huffman@45049
   657
* Session HOLCF: Discontinued legacy theorem names, INCOMPATIBILITY.
huffman@45049
   658
huffman@45049
   659
  expand_fun_below ~> fun_below_iff
huffman@45049
   660
  below_fun_ext ~> fun_belowI
huffman@45049
   661
  expand_cfun_eq ~> cfun_eq_iff
huffman@45049
   662
  ext_cfun ~> cfun_eqI
huffman@45049
   663
  expand_cfun_below ~> cfun_below_iff
huffman@45049
   664
  below_cfun_ext ~> cfun_belowI
huffman@45049
   665
  monofun_fun_fun ~> fun_belowD
huffman@45049
   666
  monofun_fun_arg ~> monofunE
huffman@45049
   667
  monofun_lub_fun ~> adm_monofun [THEN admD]
huffman@45049
   668
  cont_lub_fun ~> adm_cont [THEN admD]
huffman@45049
   669
  cont2cont_Rep_CFun ~> cont2cont_APP
huffman@45049
   670
  cont_Rep_CFun_app ~> cont_APP_app
huffman@45049
   671
  cont_Rep_CFun_app_app ~> cont_APP_app_app
huffman@45049
   672
  cont_cfun_fun ~> cont_Rep_cfun1 [THEN contE]
huffman@45049
   673
  cont_cfun_arg ~> cont_Rep_cfun2 [THEN contE]
huffman@45049
   674
  contlub_cfun ~> lub_APP [symmetric]
huffman@45049
   675
  contlub_LAM ~> lub_LAM [symmetric]
huffman@45049
   676
  thelubI ~> lub_eqI
huffman@45049
   677
  UU_I ~> bottomI
huffman@45049
   678
  lift_distinct1 ~> lift.distinct(1)
huffman@45049
   679
  lift_distinct2 ~> lift.distinct(2)
huffman@45049
   680
  Def_not_UU ~> lift.distinct(2)
huffman@45049
   681
  Def_inject ~> lift.inject
huffman@45049
   682
  below_UU_iff ~> below_bottom_iff
huffman@45049
   683
  eq_UU_iff ~> eq_bottom_iff
huffman@45049
   684
huffman@44903
   685
krauss@41685
   686
*** Document preparation ***
krauss@41685
   687
wenzelm@44800
   688
* Antiquotation @{rail} layouts railroad syntax diagrams, see also
wenzelm@44800
   689
isar-ref manual, both for description and actual application of the
wenzelm@44800
   690
same.
wenzelm@44800
   691
wenzelm@44800
   692
* Antiquotation @{value} evaluates the given term and presents its
wenzelm@44800
   693
result.
wenzelm@44800
   694
wenzelm@44800
   695
* Antiquotations: term style "isub" provides ad-hoc conversion of
wenzelm@44800
   696
variables x1, y23 into subscripted form x\<^isub>1,
wenzelm@44800
   697
y\<^isub>2\<^isub>3.
wenzelm@41651
   698
wenzelm@42484
   699
* Predefined LaTeX macros for Isabelle symbols \<bind> and \<then>
wenzelm@42484
   700
(e.g. see ~~/src/HOL/Library/Monad_Syntax.thy).
wenzelm@42484
   701
wenzelm@44967
   702
* Localized \isabellestyle switch can be used within blocks or groups
wenzelm@44967
   703
like this:
wenzelm@44967
   704
wenzelm@44967
   705
  \isabellestyle{it}  %preferred default
wenzelm@44967
   706
  {\isabellestylett @{text "typewriter stuff"}}
wenzelm@44967
   707
wenzelm@44967
   708
* Discontinued special treatment of hard tabulators.  Implicit
wenzelm@44967
   709
tab-width is now defined as 1.  Potential INCOMPATIBILITY for visual
wenzelm@44967
   710
layouts.
wenzelm@44800
   711
wenzelm@41651
   712
wenzelm@41944
   713
*** ML ***
wenzelm@41944
   714
wenzelm@43731
   715
* The inner syntax of sort/type/term/prop supports inlined YXML
wenzelm@43731
   716
representations within quoted string tokens.  By encoding logical
wenzelm@43731
   717
entities via Term_XML (in ML or Scala) concrete syntax can be
wenzelm@43731
   718
bypassed, which is particularly useful for producing bits of text
wenzelm@43731
   719
under external program control.
wenzelm@43731
   720
wenzelm@43565
   721
* Antiquotations for ML and document preparation are managed as theory
wenzelm@43565
   722
data, which requires explicit setup.
wenzelm@43565
   723
wenzelm@42897
   724
* Isabelle_Process.is_active allows tools to check if the official
wenzelm@42897
   725
process wrapper is running (Isabelle/Scala/jEdit) or the old TTY loop
wenzelm@42897
   726
(better known as Proof General).
wenzelm@42897
   727
wenzelm@42360
   728
* Structure Proof_Context follows standard naming scheme.  Old
wenzelm@42360
   729
ProofContext is still available for some time as legacy alias.
wenzelm@42360
   730
wenzelm@42015
   731
* Structure Timing provides various operations for timing; supersedes
wenzelm@42015
   732
former start_timing/end_timing etc.
wenzelm@42015
   733
wenzelm@41944
   734
* Path.print is the official way to show file-system paths to users
wenzelm@41944
   735
(including quotes etc.).
wenzelm@41944
   736
wenzelm@42056
   737
* Inner syntax: identifiers in parse trees of generic categories
wenzelm@42056
   738
"logic", "aprop", "idt" etc. carry position information (disguised as
wenzelm@42056
   739
type constraints).  Occasional INCOMPATIBILITY with non-compliant
wenzelm@42057
   740
translations that choke on unexpected type constraints.  Positions can
wenzelm@42057
   741
be stripped in ML translations via Syntax.strip_positions /
wenzelm@42057
   742
Syntax.strip_positions_ast, or via the syntax constant
wenzelm@42057
   743
"_strip_positions" within parse trees.  As last resort, positions can
wenzelm@42057
   744
be disabled via the configuration option Syntax.positions, which is
wenzelm@42057
   745
called "syntax_positions" in Isar attribute syntax.
wenzelm@42056
   746
wenzelm@42290
   747
* Discontinued special status of various ML structures that contribute
wenzelm@42290
   748
to structure Syntax (Ast, Lexicon, Mixfix, Parser, Printer etc.): less
wenzelm@42290
   749
pervasive content, no inclusion in structure Syntax.  INCOMPATIBILITY,
wenzelm@42290
   750
refer directly to Ast.Constant, Lexicon.is_identifier,
wenzelm@42290
   751
Syntax_Trans.mk_binder_tr etc.
wenzelm@42224
   752
wenzelm@42247
   753
* Typed print translation: discontinued show_sorts argument, which is
wenzelm@42247
   754
already available via context of "advanced" translation.
wenzelm@42247
   755
wenzelm@42370
   756
* Refined PARALLEL_GOALS tactical: degrades gracefully for schematic
wenzelm@42370
   757
goal states; body tactic needs to address all subgoals uniformly.
wenzelm@42370
   758
wenzelm@42403
   759
* Slightly more special eq_list/eq_set, with shortcut involving
wenzelm@42403
   760
pointer equality (assumes that eq relation is reflexive).
wenzelm@42403
   761
wenzelm@42793
   762
* Classical tactics use proper Proof.context instead of historic types
wenzelm@42793
   763
claset/clasimpset.  Old-style declarations like addIs, addEs, addDs
wenzelm@42793
   764
operate directly on Proof.context.  Raw type claset retains its use as
wenzelm@42793
   765
snapshot of the classical context, which can be recovered via
wenzelm@42793
   766
(put_claset HOL_cs) etc.  Type clasimpset has been discontinued.
wenzelm@42793
   767
INCOMPATIBILITY, classical tactics and derived proof methods require
wenzelm@42793
   768
proper Proof.context.
wenzelm@42793
   769
wenzelm@44803
   770
wenzelm@44803
   771
*** System ***
wenzelm@44803
   772
wenzelm@44968
   773
* Discontinued support for Poly/ML 5.2, which was the last version
wenzelm@44968
   774
without proper multithreading and TimeLimit implementation.
wenzelm@44968
   775
wenzelm@44968
   776
* Discontinued old lib/scripts/polyml-platform, which has been
wenzelm@44968
   777
obsolete since Isabelle2009-2.
wenzelm@44968
   778
wenzelm@44967
   779
* Various optional external tools are referenced more robustly and
wenzelm@44967
   780
uniformly by explicit Isabelle settings as follows:
wenzelm@44967
   781
wenzelm@44967
   782
  ISABELLE_CSDP   (formerly CSDP_EXE)
wenzelm@44967
   783
  ISABELLE_GHC    (formerly EXEC_GHC or GHC_PATH)
wenzelm@44967
   784
  ISABELLE_OCAML  (formerly EXEC_OCAML)
wenzelm@44967
   785
  ISABELLE_SWIPL  (formerly EXEC_SWIPL)
wenzelm@44967
   786
  ISABELLE_YAP    (formerly EXEC_YAP)
wenzelm@44967
   787
wenzelm@44967
   788
Note that automated detection from the file-system or search path has
wenzelm@44967
   789
been discontinued.  INCOMPATIBILITY.
wenzelm@44967
   790
wenzelm@43752
   791
* Scala layer provides JVM method invocation service for static
wenzelm@44800
   792
methods of type (String)String, see Invoke_Scala.method in ML.  For
wenzelm@44800
   793
example:
wenzelm@43752
   794
wenzelm@43752
   795
  Invoke_Scala.method "java.lang.System.getProperty" "java.home"
wenzelm@43752
   796
wenzelm@44967
   797
Together with YXML.string_of_body/parse_body and XML.Encode/Decode
wenzelm@44967
   798
this allows to pass structured values between ML and Scala.
wenzelm@44800
   799
wenzelm@44803
   800
* The IsabelleText fonts includes some further glyphs to support the
wenzelm@44803
   801
Prover IDE.  Potential INCOMPATIBILITY: users who happen to have
wenzelm@44803
   802
installed a local copy (which is normally *not* required) need to
wenzelm@44803
   803
delete or update it from ~~/lib/fonts/.
wenzelm@41944
   804
wenzelm@41703
   805
wenzelm@45089
   806
wenzelm@41512
   807
New in Isabelle2011 (January 2011)
wenzelm@41512
   808
----------------------------------
wenzelm@37383
   809
wenzelm@37536
   810
*** General ***
wenzelm@37536
   811
wenzelm@41573
   812
* Experimental Prover IDE based on Isabelle/Scala and jEdit (see
wenzelm@41612
   813
src/Tools/jEdit).  This also serves as IDE for Isabelle/ML, with
wenzelm@41612
   814
useful tooltips and hyperlinks produced from its static analysis.  The
wenzelm@41612
   815
bundled component provides an executable Isabelle tool that can be run
wenzelm@41612
   816
like this:
wenzelm@41612
   817
wenzelm@41612
   818
  Isabelle2011/bin/isabelle jedit
wenzelm@41573
   819
wenzelm@40948
   820
* Significantly improved Isabelle/Isar implementation manual.
wenzelm@40948
   821
wenzelm@41594
   822
* System settings: ISABELLE_HOME_USER now includes ISABELLE_IDENTIFIER
wenzelm@41595
   823
(and thus refers to something like $HOME/.isabelle/Isabelle2011),
wenzelm@41594
   824
while the default heap location within that directory lacks that extra
wenzelm@41594
   825
suffix.  This isolates multiple Isabelle installations from each
wenzelm@41594
   826
other, avoiding problems with old settings in new versions.
wenzelm@41594
   827
INCOMPATIBILITY, need to copy/upgrade old user settings manually.
wenzelm@41594
   828
wenzelm@40947
   829
* Source files are always encoded as UTF-8, instead of old-fashioned
wenzelm@40947
   830
ISO-Latin-1.  INCOMPATIBILITY.  Isabelle LaTeX documents might require
wenzelm@40948
   831
the following package declarations:
wenzelm@40947
   832
wenzelm@40947
   833
  \usepackage[utf8]{inputenc}
wenzelm@40947
   834
  \usepackage{textcomp}
wenzelm@40947
   835
krauss@41440
   836
* Explicit treatment of UTF-8 sequences as Isabelle symbols, such that
wenzelm@37536
   837
a Unicode character is treated as a single symbol, not a sequence of
wenzelm@37536
   838
non-ASCII bytes as before.  Since Isabelle/ML string literals may
wenzelm@37536
   839
contain symbols without further backslash escapes, Unicode can now be
wenzelm@37536
   840
used here as well.  Recall that Symbol.explode in ML provides a
wenzelm@37536
   841
consistent view on symbols, while raw explode (or String.explode)
wenzelm@37536
   842
merely give a byte-oriented representation.
wenzelm@37536
   843
wenzelm@41594
   844
* Theory loader: source files are primarily located via the master
wenzelm@41594
   845
directory of each theory node (where the .thy file itself resides).
wenzelm@41594
   846
The global load path is still partially available as legacy feature.
wenzelm@41594
   847
Minor INCOMPATIBILITY due to subtle change in file lookup: use
wenzelm@41594
   848
explicit paths, relatively to the theory.
wenzelm@38135
   849
wenzelm@37939
   850
* Special treatment of ML file names has been discontinued.
wenzelm@37939
   851
Historically, optional extensions .ML or .sml were added on demand --
wenzelm@37939
   852
at the cost of clarity of file dependencies.  Recall that Isabelle/ML
wenzelm@37939
   853
files exclusively use the .ML extension.  Minor INCOMPATIBILTY.
wenzelm@37939
   854
wenzelm@38980
   855
* Various options that affect pretty printing etc. are now properly
wenzelm@38767
   856
handled within the context via configuration options, instead of
wenzelm@40879
   857
unsynchronized references or print modes.  There are both ML Config.T
wenzelm@40879
   858
entities and Isar declaration attributes to access these.
wenzelm@38767
   859
wenzelm@39125
   860
  ML (Config.T)                 Isar (attribute)
wenzelm@39125
   861
wenzelm@39128
   862
  eta_contract                  eta_contract
wenzelm@39137
   863
  show_brackets                 show_brackets
wenzelm@39134
   864
  show_sorts                    show_sorts
wenzelm@39134
   865
  show_types                    show_types
wenzelm@39126
   866
  show_question_marks           show_question_marks
wenzelm@39126
   867
  show_consts                   show_consts
wenzelm@40879
   868
  show_abbrevs                  show_abbrevs
wenzelm@39126
   869
wenzelm@41379
   870
  Syntax.ast_trace              syntax_ast_trace
wenzelm@41379
   871
  Syntax.ast_stat               syntax_ast_stat
wenzelm@39126
   872
  Syntax.ambiguity_level        syntax_ambiguity_level
wenzelm@39126
   873
wenzelm@39126
   874
  Goal_Display.goals_limit      goals_limit
wenzelm@39126
   875
  Goal_Display.show_main_goal   show_main_goal
wenzelm@39126
   876
wenzelm@41379
   877
  Method.rule_trace             rule_trace
wenzelm@41379
   878
wenzelm@39125
   879
  Thy_Output.display            thy_output_display
wenzelm@39125
   880
  Thy_Output.quotes             thy_output_quotes
wenzelm@39125
   881
  Thy_Output.indent             thy_output_indent
wenzelm@39125
   882
  Thy_Output.source             thy_output_source
wenzelm@39125
   883
  Thy_Output.break              thy_output_break
wenzelm@39125
   884
krauss@41440
   885
Note that corresponding "..._default" references in ML may only be
wenzelm@38767
   886
changed globally at the ROOT session setup, but *not* within a theory.
wenzelm@40879
   887
The option "show_abbrevs" supersedes the former print mode
wenzelm@40879
   888
"no_abbrevs" with inverted meaning.
wenzelm@38767
   889
wenzelm@40878
   890
* More systematic naming of some configuration options.
huffman@41294
   891
INCOMPATIBILITY.
wenzelm@40878
   892
wenzelm@40878
   893
  trace_simp  ~>  simp_trace
wenzelm@40878
   894
  debug_simp  ~>  simp_debug
wenzelm@40878
   895
wenzelm@40291
   896
* Support for real valued configuration options, using simplistic
wenzelm@40291
   897
floating-point notation that coincides with the inner syntax for
wenzelm@40291
   898
float_token.
wenzelm@40291
   899
wenzelm@41594
   900
* Support for real valued preferences (with approximative PGIP type):
wenzelm@41594
   901
front-ends need to accept "pgint" values in float notation.
wenzelm@41594
   902
INCOMPATIBILITY.
wenzelm@41573
   903
wenzelm@41573
   904
* The IsabelleText font now includes Cyrillic, Hebrew, Arabic from
wenzelm@41573
   905
DejaVu Sans.
wenzelm@41573
   906
wenzelm@41594
   907
* Discontinued support for Poly/ML 5.0 and 5.1 versions.
wenzelm@41594
   908
wenzelm@40948
   909
wenzelm@40948
   910
*** Pure ***
wenzelm@40948
   911
wenzelm@41249
   912
* Command 'type_synonym' (with single argument) replaces somewhat
wenzelm@41249
   913
outdated 'types', which is still available as legacy feature for some
wenzelm@41249
   914
time.
wenzelm@41249
   915
wenzelm@41249
   916
* Command 'nonterminal' (with 'and' separated list of arguments)
wenzelm@41249
   917
replaces somewhat outdated 'nonterminals'.  INCOMPATIBILITY.
wenzelm@41229
   918
wenzelm@40965
   919
* Command 'notepad' replaces former 'example_proof' for
wenzelm@41020
   920
experimentation in Isar without any result.  INCOMPATIBILITY.
wenzelm@40965
   921
ballarin@41435
   922
* Locale interpretation commands 'interpret' and 'sublocale' accept
ballarin@41435
   923
lists of equations to map definitions in a locale to appropriate
ballarin@41435
   924
entities in the context of the interpretation.  The 'interpretation'
ballarin@41435
   925
command already provided this functionality.
ballarin@41435
   926
wenzelm@41594
   927
* Diagnostic command 'print_dependencies' prints the locale instances
wenzelm@41594
   928
that would be activated if the specified expression was interpreted in
wenzelm@41594
   929
the current context.  Variant "print_dependencies!" assumes a context
wenzelm@41594
   930
without interpretations.
ballarin@38110
   931
ballarin@38110
   932
* Diagnostic command 'print_interps' prints interpretations in proofs
ballarin@38110
   933
in addition to interpretations in theories.
ballarin@38110
   934
wenzelm@38708
   935
* Discontinued obsolete 'global' and 'local' commands to manipulate
wenzelm@38708
   936
the theory name space.  Rare INCOMPATIBILITY.  The ML functions
wenzelm@38708
   937
Sign.root_path and Sign.local_path may be applied directly where this
wenzelm@38708
   938
feature is still required for historical reasons.
wenzelm@38708
   939
wenzelm@40948
   940
* Discontinued obsolete 'constdefs' command.  INCOMPATIBILITY, use
haftmann@39215
   941
'definition' instead.
haftmann@39215
   942
wenzelm@41574
   943
* The "prems" fact, which refers to the accidental collection of
wenzelm@41574
   944
foundational premises in the context, is now explicitly marked as
wenzelm@41594
   945
legacy feature and will be discontinued soon.  Consider using "assms"
wenzelm@41594
   946
of the head statement or reference facts by explicit names.
wenzelm@41574
   947
wenzelm@40801
   948
* Document antiquotations @{class} and @{type} print classes and type
wenzelm@40801
   949
constructors.
wenzelm@40801
   950
wenzelm@40801
   951
* Document antiquotation @{file} checks file/directory entries within
wenzelm@40801
   952
the local file system.
haftmann@39305
   953
ballarin@38110
   954
haftmann@37387
   955
*** HOL ***
haftmann@37387
   956
wenzelm@41594
   957
* Coercive subtyping: functions can be declared as coercions and type
wenzelm@41594
   958
inference will add them as necessary upon input of a term.  Theory
wenzelm@41594
   959
Complex_Main declares real :: nat => real and real :: int => real as
wenzelm@41594
   960
coercions. A coercion function f is declared like this:
wenzelm@40939
   961
wenzelm@40939
   962
  declare [[coercion f]]
nipkow@40866
   963
wenzelm@41571
   964
To lift coercions through type constructors (e.g. from nat => real to
nipkow@40866
   965
nat list => real list), map functions can be declared, e.g.
nipkow@40866
   966
wenzelm@40939
   967
  declare [[coercion_map map]]
wenzelm@40939
   968
wenzelm@40939
   969
Currently coercion inference is activated only in theories including
wenzelm@40939
   970
real numbers, i.e. descendants of Complex_Main.  This is controlled by
wenzelm@41020
   971
the configuration option "coercion_enabled", e.g. it can be enabled in
wenzelm@40939
   972
other theories like this:
wenzelm@40939
   973
wenzelm@40939
   974
  declare [[coercion_enabled]]
nipkow@40866
   975
wenzelm@41571
   976
* Command 'partial_function' provides basic support for recursive
wenzelm@41571
   977
function definitions over complete partial orders.  Concrete instances
krauss@40183
   978
are provided for i) the option type, ii) tail recursion on arbitrary
wenzelm@41571
   979
types, and iii) the heap monad of Imperative_HOL.  See
wenzelm@41571
   980
src/HOL/ex/Fundefs.thy and src/HOL/Imperative_HOL/ex/Linked_Lists.thy
wenzelm@41571
   981
for examples.
krauss@40183
   982
wenzelm@41571
   983
* Function package: f.psimps rules are no longer implicitly declared
wenzelm@41571
   984
as [simp].  INCOMPATIBILITY.
haftmann@41398
   985
haftmann@41398
   986
* Datatype package: theorems generated for executable equality (class
wenzelm@41571
   987
"eq") carry proper names and are treated as default code equations.
wenzelm@41571
   988
wenzelm@41594
   989
* Inductive package: now offers command 'inductive_simps' to
wenzelm@41594
   990
automatically derive instantiated and simplified equations for
wenzelm@41594
   991
inductive predicates, similar to 'inductive_cases'.
wenzelm@41594
   992
wenzelm@41571
   993
* Command 'enriched_type' allows to register properties of the
wenzelm@41571
   994
functorial structure of types.
haftmann@39771
   995
haftmann@39644
   996
* Improved infrastructure for term evaluation using code generator
haftmann@39644
   997
techniques, in particular static evaluation conversions.
haftmann@39644
   998
wenzelm@41594
   999
* Code generator: Scala (2.8 or higher) has been added to the target
wenzelm@41594
  1000
languages.
wenzelm@41594
  1001
haftmann@41398
  1002
* Code generator: globbing constant expressions "*" and "Theory.*"
haftmann@41398
  1003
have been replaced by the more idiomatic "_" and "Theory._".
haftmann@41398
  1004
INCOMPATIBILITY.
haftmann@41398
  1005
haftmann@41398
  1006
* Code generator: export_code without explicit file declaration prints
haftmann@41398
  1007
to standard output.  INCOMPATIBILITY.
haftmann@41398
  1008
haftmann@41398
  1009
* Code generator: do not print function definitions for case
haftmann@41398
  1010
combinators any longer.
haftmann@41398
  1011
wenzelm@41594
  1012
* Code generator: simplification with rules determined with
wenzelm@41571
  1013
src/Tools/Code/code_simp.ML and method "code_simp".
wenzelm@41571
  1014
wenzelm@41594
  1015
* Code generator for records: more idiomatic representation of record
wenzelm@40948
  1016
types.  Warning: records are not covered by ancient SML code
wenzelm@40948
  1017
generation any longer.  INCOMPATIBILITY.  In cases of need, a suitable
wenzelm@40948
  1018
rep_datatype declaration helps to succeed then:
haftmann@38537
  1019
haftmann@38537
  1020
  record 'a foo = ...
haftmann@38537
  1021
  ...
haftmann@38537
  1022
  rep_datatype foo_ext ...
haftmann@38535
  1023
wenzelm@41594
  1024
* Records: logical foundation type for records does not carry a
wenzelm@41594
  1025
'_type' suffix any longer (obsolete due to authentic syntax).
wenzelm@41594
  1026
INCOMPATIBILITY.
wenzelm@41594
  1027
haftmann@41398
  1028
* Quickcheck now by default uses exhaustive testing instead of random
wenzelm@41571
  1029
testing.  Random testing can be invoked by "quickcheck [random]",
wenzelm@41571
  1030
exhaustive testing by "quickcheck [exhaustive]".
haftmann@41398
  1031
haftmann@41398
  1032
* Quickcheck instantiates polymorphic types with small finite
haftmann@41398
  1033
datatypes by default. This enables a simple execution mechanism to
haftmann@41398
  1034
handle quantifiers and function equality over the finite datatypes.
haftmann@41398
  1035
wenzelm@41571
  1036
* Quickcheck random generator has been renamed from "code" to
wenzelm@41571
  1037
"random".  INCOMPATIBILITY.
haftmann@41398
  1038
haftmann@41398
  1039
* Quickcheck now has a configurable time limit which is set to 30
haftmann@41398
  1040
seconds by default. This can be changed by adding [timeout = n] to the
haftmann@41398
  1041
quickcheck command. The time limit for Auto Quickcheck is still set
haftmann@41398
  1042
independently.
haftmann@38461
  1043
haftmann@38461
  1044
* Quickcheck in locales considers interpretations of that locale for
haftmann@38461
  1045
counter example search.
haftmann@38461
  1046
blanchet@40059
  1047
* Sledgehammer:
wenzelm@41571
  1048
  - Added "smt" and "remote_smt" provers based on the "smt" proof
wenzelm@41571
  1049
    method. See the Sledgehammer manual for details ("isabelle doc
wenzelm@41571
  1050
    sledgehammer").
blanchet@40059
  1051
  - Renamed commands:
blanchet@40059
  1052
    sledgehammer atp_info ~> sledgehammer running_provers
blanchet@40059
  1053
    sledgehammer atp_kill ~> sledgehammer kill_provers
blanchet@40059
  1054
    sledgehammer available_atps ~> sledgehammer available_provers
blanchet@40059
  1055
    INCOMPATIBILITY.
blanchet@40059
  1056
  - Renamed options:
blanchet@40059
  1057
    sledgehammer [atps = ...] ~> sledgehammer [provers = ...]
blanchet@40062
  1058
    sledgehammer [atp = ...] ~> sledgehammer [prover = ...]
blanchet@40341
  1059
    sledgehammer [timeout = 77 s] ~> sledgehammer [timeout = 77]
blanchet@40341
  1060
    (and "ms" and "min" are no longer supported)
blanchet@40341
  1061
    INCOMPATIBILITY.
blanchet@40341
  1062
blanchet@40341
  1063
* Nitpick:
blanchet@40341
  1064
  - Renamed options:
blanchet@40341
  1065
    nitpick [timeout = 77 s] ~> nitpick [timeout = 77]
blanchet@40341
  1066
    nitpick [tac_timeout = 777 ms] ~> nitpick [tac_timeout = 0.777]
blanchet@40059
  1067
    INCOMPATIBILITY.
blanchet@40725
  1068
  - Added support for partial quotient types.
blanchet@40725
  1069
  - Added local versions of the "Nitpick.register_xxx" functions.
blanchet@40725
  1070
  - Added "whack" option.
blanchet@40725
  1071
  - Allow registration of quotient types as codatatypes.
blanchet@40725
  1072
  - Improved "merge_type_vars" option to merge more types.
blanchet@40725
  1073
  - Removed unsound "fast_descrs" option.
blanchet@40725
  1074
  - Added custom symmetry breaking for datatypes, making it possible to reach
blanchet@40725
  1075
    higher cardinalities.
blanchet@40725
  1076
  - Prevent the expansion of too large definitions.
blanchet@39957
  1077
wenzelm@41571
  1078
* Proof methods "metis" and "meson" now have configuration options
wenzelm@41571
  1079
"meson_trace", "metis_trace", and "metis_verbose" that can be enabled
wenzelm@41571
  1080
to diagnose these tools. E.g.
wenzelm@41571
  1081
wenzelm@41571
  1082
    using [[metis_trace = true]]
wenzelm@41571
  1083
haftmann@41398
  1084
* Auto Solve: Renamed "Auto Solve Direct".  The tool is now available
haftmann@41398
  1085
manually as command 'solve_direct'.
haftmann@41398
  1086
boehmes@41601
  1087
* The default SMT solver Z3 must be enabled explicitly (due to
boehmes@41601
  1088
licensing issues) by setting the environment variable
wenzelm@41603
  1089
Z3_NON_COMMERCIAL in etc/settings of the component, for example.  For
wenzelm@41603
  1090
commercial applications, the SMT solver CVC3 is provided as fall-back;
wenzelm@41603
  1091
changing the SMT solver is done via the configuration option
wenzelm@41603
  1092
"smt_solver".
boehmes@41432
  1093
boehmes@41432
  1094
* Remote SMT solvers need to be referred to by the "remote_" prefix,
wenzelm@41571
  1095
i.e. "remote_cvc3" and "remote_z3".
wenzelm@41571
  1096
wenzelm@41571
  1097
* Added basic SMT support for datatypes, records, and typedefs using
wenzelm@41571
  1098
the oracle mode (no proofs).  Direct support of pairs has been dropped
wenzelm@41571
  1099
in exchange (pass theorems fst_conv snd_conv pair_collapse to the SMT
wenzelm@41571
  1100
support for a similar behavior).  Minor INCOMPATIBILITY.
boehmes@41432
  1101
boehmes@40162
  1102
* Changed SMT configuration options:
boehmes@40162
  1103
  - Renamed:
boehmes@41432
  1104
    z3_proofs ~> smt_oracle (with inverted meaning)
boehmes@40162
  1105
    z3_trace_assms ~> smt_trace_used_facts
boehmes@40162
  1106
    INCOMPATIBILITY.
boehmes@40162
  1107
  - Added:
boehmes@40424
  1108
    smt_verbose
boehmes@41432
  1109
    smt_random_seed
boehmes@40424
  1110
    smt_datatypes
boehmes@41432
  1111
    smt_infer_triggers
boehmes@41432
  1112
    smt_monomorph_limit
boehmes@40162
  1113
    cvc3_options
boehmes@41432
  1114
    remote_cvc3_options
boehmes@41432
  1115
    remote_z3_options
boehmes@40162
  1116
    yices_options
blanchet@39957
  1117
wenzelm@40948
  1118
* Boogie output files (.b2i files) need to be declared in the theory
wenzelm@40948
  1119
header.
boehmes@40580
  1120
wenzelm@41594
  1121
* Simplification procedure "list_to_set_comprehension" rewrites list
wenzelm@41594
  1122
comprehensions applied to List.set to set comprehensions.  Occasional
wenzelm@41594
  1123
INCOMPATIBILITY, may be deactivated like this:
wenzelm@41594
  1124
wenzelm@41594
  1125
  declare [[simproc del: list_to_set_comprehension]]
wenzelm@41594
  1126
wenzelm@41573
  1127
* Removed old version of primrec package.  INCOMPATIBILITY.
haftmann@41398
  1128
haftmann@41398
  1129
* Removed simplifier congruence rule of "prod_case", as has for long
haftmann@41398
  1130
been the case with "split".  INCOMPATIBILITY.
haftmann@41398
  1131
haftmann@41398
  1132
* String.literal is a type, but not a datatype.  INCOMPATIBILITY.
haftmann@41398
  1133
krauss@40388
  1134
* Removed [split_format ... and ... and ...] version of
krauss@40388
  1135
[split_format].  Potential INCOMPATIBILITY.
krauss@40388
  1136
wenzelm@41571
  1137
* Predicate "sorted" now defined inductively, with nice induction
wenzelm@41571
  1138
rules.  INCOMPATIBILITY: former sorted.simps now named sorted_simps.
haftmann@41398
  1139
haftmann@41398
  1140
* Constant "contents" renamed to "the_elem", to free the generic name
haftmann@41398
  1141
contents for other uses.  INCOMPATIBILITY.
haftmann@41398
  1142
haftmann@41398
  1143
* Renamed class eq and constant eq (for code generation) to class
haftmann@41398
  1144
equal and constant equal, plus renaming of related facts and various
haftmann@41398
  1145
tuning.  INCOMPATIBILITY.
haftmann@41398
  1146
haftmann@41398
  1147
* Dropped type classes mult_mono and mult_mono1.  INCOMPATIBILITY.
haftmann@41398
  1148
wenzelm@41571
  1149
* Removed output syntax "'a ~=> 'b" for "'a => 'b option".
wenzelm@41571
  1150
INCOMPATIBILITY.
haftmann@41398
  1151
haftmann@41398
  1152
* Renamed theory Fset to Cset, type Fset.fset to Cset.set, in order to
haftmann@41398
  1153
avoid confusion with finite sets.  INCOMPATIBILITY.
haftmann@41398
  1154
haftmann@41398
  1155
* Abandoned locales equiv, congruent and congruent2 for equivalence
haftmann@41398
  1156
relations.  INCOMPATIBILITY: use equivI rather than equiv_intro (same
haftmann@41398
  1157
for congruent(2)).
haftmann@41398
  1158
haftmann@41398
  1159
* Some previously unqualified names have been qualified:
haftmann@41398
  1160
haftmann@41398
  1161
  types
haftmann@41398
  1162
    bool ~> HOL.bool
haftmann@41398
  1163
    nat ~> Nat.nat
haftmann@41398
  1164
haftmann@41398
  1165
  constants
haftmann@41398
  1166
    Trueprop ~> HOL.Trueprop
haftmann@41398
  1167
    True ~> HOL.True
haftmann@41398
  1168
    False ~> HOL.False
haftmann@41398
  1169
    op & ~> HOL.conj
haftmann@41398
  1170
    op | ~> HOL.disj
haftmann@41398
  1171
    op --> ~> HOL.implies
haftmann@41398
  1172
    op = ~> HOL.eq
haftmann@41398
  1173
    Not ~> HOL.Not
haftmann@41398
  1174
    The ~> HOL.The
haftmann@41398
  1175
    All ~> HOL.All
haftmann@41398
  1176
    Ex ~> HOL.Ex
haftmann@41398
  1177
    Ex1 ~> HOL.Ex1
haftmann@41398
  1178
    Let ~> HOL.Let
haftmann@41398
  1179
    If ~> HOL.If
haftmann@41398
  1180
    Ball ~> Set.Ball
haftmann@41398
  1181
    Bex ~> Set.Bex
haftmann@41398
  1182
    Suc ~> Nat.Suc
haftmann@41398
  1183
    Pair ~> Product_Type.Pair
haftmann@41398
  1184
    fst ~> Product_Type.fst
haftmann@41398
  1185
    snd ~> Product_Type.snd
haftmann@41398
  1186
    curry ~> Product_Type.curry
haftmann@41398
  1187
    op : ~> Set.member
haftmann@41398
  1188
    Collect ~> Set.Collect
haftmann@41398
  1189
haftmann@41398
  1190
INCOMPATIBILITY.
haftmann@41398
  1191
haftmann@41398
  1192
* More canonical naming convention for some fundamental definitions:
haftmann@41398
  1193
haftmann@41398
  1194
    bot_bool_eq ~> bot_bool_def
haftmann@41398
  1195
    top_bool_eq ~> top_bool_def
haftmann@41398
  1196
    inf_bool_eq ~> inf_bool_def
haftmann@41398
  1197
    sup_bool_eq ~> sup_bool_def
haftmann@41398
  1198
    bot_fun_eq  ~> bot_fun_def
haftmann@41398
  1199
    top_fun_eq  ~> top_fun_def
haftmann@41398
  1200
    inf_fun_eq  ~> inf_fun_def
haftmann@41398
  1201
    sup_fun_eq  ~> sup_fun_def
haftmann@41398
  1202
haftmann@41398
  1203
INCOMPATIBILITY.
haftmann@41398
  1204
haftmann@41398
  1205
* More stylized fact names:
haftmann@41398
  1206
haftmann@41398
  1207
  expand_fun_eq ~> fun_eq_iff
haftmann@41398
  1208
  expand_set_eq ~> set_eq_iff
haftmann@41398
  1209
  set_ext       ~> set_eqI
haftmann@41398
  1210
  nat_number    ~> eval_nat_numeral
haftmann@41398
  1211
haftmann@41398
  1212
INCOMPATIBILITY.
haftmann@41398
  1213
wenzelm@41571
  1214
* Refactoring of code-generation specific operations in theory List:
haftmann@41398
  1215
haftmann@41398
  1216
  constants
haftmann@41398
  1217
    null ~> List.null
haftmann@41398
  1218
haftmann@41398
  1219
  facts
haftmann@41398
  1220
    mem_iff ~> member_def
haftmann@41398
  1221
    null_empty ~> null_def
haftmann@41398
  1222
haftmann@41398
  1223
INCOMPATIBILITY.  Note that these were not supposed to be used
haftmann@41398
  1224
regularly unless for striking reasons; their main purpose was code
haftmann@41398
  1225
generation.
haftmann@41398
  1226
haftmann@41398
  1227
Various operations from the Haskell prelude are used for generating
haftmann@41398
  1228
Haskell code.
haftmann@41398
  1229
wenzelm@41571
  1230
* Term "bij f" is now an abbreviation of "bij_betw f UNIV UNIV".  Term
wenzelm@41571
  1231
"surj f" is now an abbreviation of "range f = UNIV".  The theorems
wenzelm@41571
  1232
bij_def and surj_def are unchanged.  INCOMPATIBILITY.
haftmann@41398
  1233
haftmann@41398
  1234
* Abolished some non-alphabetic type names: "prod" and "sum" replace
haftmann@41398
  1235
"*" and "+" respectively.  INCOMPATIBILITY.
haftmann@41398
  1236
haftmann@41398
  1237
* Name "Plus" of disjoint sum operator "<+>" is now hidden.  Write
wenzelm@41571
  1238
"Sum_Type.Plus" instead.
haftmann@41398
  1239
haftmann@41398
  1240
* Constant "split" has been merged with constant "prod_case"; names of
haftmann@41398
  1241
ML functions, facts etc. involving split have been retained so far,
haftmann@41398
  1242
though.  INCOMPATIBILITY.
haftmann@41398
  1243
haftmann@41398
  1244
* Dropped old infix syntax "_ mem _" for List.member; use "_ : set _"
haftmann@41398
  1245
instead.  INCOMPATIBILITY.
haftmann@41398
  1246
wenzelm@41571
  1247
* Removed lemma "Option.is_none_none" which duplicates "is_none_def".
haftmann@41398
  1248
INCOMPATIBILITY.
haftmann@41398
  1249
wenzelm@41594
  1250
* Former theory Library/Enum is now part of the HOL-Main image.
wenzelm@41594
  1251
INCOMPATIBILITY: all constants of the Enum theory now have to be
wenzelm@41594
  1252
referred to by its qualified name.
wenzelm@41594
  1253
wenzelm@41594
  1254
  enum    ~>  Enum.enum
wenzelm@41594
  1255
  nlists  ~>  Enum.nlists
wenzelm@41594
  1256
  product ~>  Enum.product
wenzelm@41594
  1257
wenzelm@41594
  1258
* Theory Library/Monad_Syntax provides do-syntax for monad types.
wenzelm@41594
  1259
Syntax in Library/State_Monad has been changed to avoid ambiguities.
wenzelm@41594
  1260
INCOMPATIBILITY.
wenzelm@41594
  1261
wenzelm@41594
  1262
* Theory Library/SetsAndFunctions has been split into
wenzelm@41594
  1263
Library/Function_Algebras and Library/Set_Algebras; canonical names
wenzelm@41594
  1264
for instance definitions for functions; various improvements.
wenzelm@41594
  1265
INCOMPATIBILITY.
wenzelm@41594
  1266
wenzelm@41594
  1267
* Theory Library/Multiset provides stable quicksort implementation of
wenzelm@41594
  1268
sort_key.
wenzelm@41594
  1269
wenzelm@41594
  1270
* Theory Library/Multiset: renamed empty_idemp ~> empty_neutral.
wenzelm@41594
  1271
INCOMPATIBILITY.
wenzelm@41594
  1272
wenzelm@41594
  1273
* Session Multivariate_Analysis: introduced a type class for euclidean
wenzelm@41594
  1274
space.  Most theorems are now stated in terms of euclidean spaces
wenzelm@41594
  1275
instead of finite cartesian products.
wenzelm@41594
  1276
wenzelm@41594
  1277
  types
wenzelm@41594
  1278
    real ^ 'n ~>  'a::real_vector
wenzelm@41594
  1279
              ~>  'a::euclidean_space
wenzelm@41594
  1280
              ~>  'a::ordered_euclidean_space
wenzelm@41594
  1281
        (depends on your needs)
wenzelm@41594
  1282
wenzelm@41594
  1283
  constants
wenzelm@41594
  1284
     _ $ _        ~> _ $$ _
wenzelm@41594
  1285
     \<chi> x. _  ~> \<chi>\<chi> x. _
wenzelm@41594
  1286
     CARD('n)     ~> DIM('a)
wenzelm@41594
  1287
wenzelm@41594
  1288
Also note that the indices are now natural numbers and not from some
wenzelm@41594
  1289
finite type. Finite cartesian products of euclidean spaces, products
wenzelm@41594
  1290
of euclidean spaces the real and complex numbers are instantiated to
wenzelm@41594
  1291
be euclidean_spaces.  INCOMPATIBILITY.
wenzelm@41594
  1292
wenzelm@41594
  1293
* Session Probability: introduced pextreal as positive extended real
wenzelm@41594
  1294
numbers.  Use pextreal as value for measures.  Introduce the
wenzelm@41594
  1295
Radon-Nikodym derivative, product spaces and Fubini's theorem for
wenzelm@41594
  1296
arbitrary sigma finite measures.  Introduces Lebesgue measure based on
wenzelm@41594
  1297
the integral in Multivariate Analysis.  INCOMPATIBILITY.
wenzelm@41594
  1298
wenzelm@41594
  1299
* Session Imperative_HOL: revamped, corrected dozens of inadequacies.
wenzelm@41594
  1300
INCOMPATIBILITY.
wenzelm@41594
  1301
wenzelm@41594
  1302
* Session SPARK (with image HOL-SPARK) provides commands to load and
wenzelm@41594
  1303
prove verification conditions generated by the SPARK Ada program
wenzelm@41594
  1304
verifier.  See also src/HOL/SPARK and src/HOL/SPARK/Examples.
berghofe@41567
  1305
huffman@40621
  1306
ballarin@41433
  1307
*** HOL-Algebra ***
ballarin@41433
  1308
ballarin@41433
  1309
* Theorems for additive ring operations (locale abelian_monoid and
ballarin@41433
  1310
descendants) are generated by interpretation from their multiplicative
ballarin@41434
  1311
counterparts.  Names (in particular theorem names) have the mandatory
ballarin@41434
  1312
qualifier 'add'.  Previous theorem names are redeclared for
ballarin@41434
  1313
compatibility.
ballarin@41434
  1314
wenzelm@41571
  1315
* Structure "int_ring" is now an abbreviation (previously a
ballarin@41434
  1316
definition).  This fits more natural with advanced interpretations.
ballarin@41433
  1317
ballarin@41433
  1318
huffman@40621
  1319
*** HOLCF ***
huffman@40621
  1320
huffman@40621
  1321
* The domain package now runs in definitional mode by default: The
wenzelm@41571
  1322
former command 'new_domain' is now called 'domain'.  To use the domain
huffman@40621
  1323
package in its original axiomatic mode, use 'domain (unsafe)'.
huffman@40621
  1324
INCOMPATIBILITY.
huffman@40621
  1325
wenzelm@41571
  1326
* The new class "domain" is now the default sort.  Class "predomain"
wenzelm@41571
  1327
is an unpointed version of "domain". Theories can be updated by
wenzelm@41571
  1328
replacing sort annotations as shown below.  INCOMPATIBILITY.
huffman@40621
  1329
huffman@40621
  1330
  'a::type ~> 'a::countable
huffman@40621
  1331
  'a::cpo  ~> 'a::predomain
huffman@40621
  1332
  'a::pcpo ~> 'a::domain
huffman@40621
  1333
wenzelm@41571
  1334
* The old type class "rep" has been superseded by class "domain".
huffman@40621
  1335
Accordingly, users of the definitional package must remove any
wenzelm@41571
  1336
"default_sort rep" declarations.  INCOMPATIBILITY.
huffman@40621
  1337
huffman@41401
  1338
* The domain package (definitional mode) now supports unpointed
huffman@41401
  1339
predomain argument types, as long as they are marked 'lazy'. (Strict
wenzelm@41571
  1340
arguments must be in class "domain".) For example, the following
huffman@41401
  1341
domain definition now works:
huffman@41401
  1342
huffman@41401
  1343
  domain natlist = nil | cons (lazy "nat discr") (lazy "natlist")
huffman@41401
  1344
huffman@41401
  1345
* Theory HOLCF/Library/HOL_Cpo provides cpo and predomain class
wenzelm@41571
  1346
instances for types from main HOL: bool, nat, int, char, 'a + 'b,
wenzelm@41571
  1347
'a option, and 'a list.  Additionally, it configures fixrec and the
wenzelm@41571
  1348
domain package to work with these types.  For example:
huffman@41401
  1349
huffman@41401
  1350
  fixrec isInl :: "('a + 'b) u -> tr"
huffman@41401
  1351
    where "isInl$(up$(Inl x)) = TT" | "isInl$(up$(Inr y)) = FF"
huffman@41401
  1352
huffman@41401
  1353
  domain V = VFun (lazy "V -> V") | VCon (lazy "nat") (lazy "V list")
huffman@41401
  1354
wenzelm@41571
  1355
* The "(permissive)" option of fixrec has been replaced with a
wenzelm@41571
  1356
per-equation "(unchecked)" option. See
wenzelm@41571
  1357
src/HOL/HOLCF/Tutorial/Fixrec_ex.thy for examples. INCOMPATIBILITY.
wenzelm@41571
  1358
wenzelm@41571
  1359
* The "bifinite" class no longer fixes a constant "approx"; the class
wenzelm@41571
  1360
now just asserts that such a function exists.  INCOMPATIBILITY.
wenzelm@41571
  1361
wenzelm@41571
  1362
* Former type "alg_defl" has been renamed to "defl".  HOLCF no longer
huffman@41287
  1363
defines an embedding of type 'a defl into udom by default; instances
wenzelm@41571
  1364
of "bifinite" and "domain" classes are available in
wenzelm@41571
  1365
src/HOL/HOLCF/Library/Defl_Bifinite.thy.
wenzelm@41571
  1366
wenzelm@41571
  1367
* The syntax "REP('a)" has been replaced with "DEFL('a)".
wenzelm@41571
  1368
wenzelm@41571
  1369
* The predicate "directed" has been removed.  INCOMPATIBILITY.
wenzelm@41571
  1370
wenzelm@41571
  1371
* The type class "finite_po" has been removed.  INCOMPATIBILITY.
wenzelm@41571
  1372
wenzelm@41571
  1373
* The function "cprod_map" has been renamed to "prod_map".
huffman@41401
  1374
INCOMPATIBILITY.
huffman@41401
  1375
huffman@41401
  1376
* The monadic bind operator on each powerdomain has new binder syntax
wenzelm@41571
  1377
similar to sets, e.g. "\<Union>\<sharp>x\<in>xs. t" represents
wenzelm@41571
  1378
"upper_bind\<cdot>xs\<cdot>(\<Lambda> x. t)".
huffman@41401
  1379
huffman@41401
  1380
* The infix syntax for binary union on each powerdomain has changed
wenzelm@41571
  1381
from e.g. "+\<sharp>" to "\<union>\<sharp>", for consistency with set
wenzelm@41571
  1382
syntax.  INCOMPATIBILITY.
wenzelm@41571
  1383
wenzelm@41571
  1384
* The constant "UU" has been renamed to "bottom".  The syntax "UU" is
huffman@41429
  1385
still supported as an input translation.
huffman@41429
  1386
huffman@40621
  1387
* Renamed some theorems (the original names are also still available).
wenzelm@41571
  1388
huffman@40621
  1389
  expand_fun_below   ~> fun_below_iff
huffman@40621
  1390
  below_fun_ext      ~> fun_belowI
huffman@40621
  1391
  expand_cfun_eq     ~> cfun_eq_iff
huffman@40621
  1392
  ext_cfun           ~> cfun_eqI
huffman@40621
  1393
  expand_cfun_below  ~> cfun_below_iff
huffman@40621
  1394
  below_cfun_ext     ~> cfun_belowI
huffman@40621
  1395
  cont2cont_Rep_CFun ~> cont2cont_APP
huffman@40621
  1396
huffman@40621
  1397
* The Abs and Rep functions for various types have changed names.
wenzelm@40948
  1398
Related theorem names have also changed to match. INCOMPATIBILITY.
wenzelm@41571
  1399
huffman@40621
  1400
  Rep_CFun  ~> Rep_cfun
huffman@40621
  1401
  Abs_CFun  ~> Abs_cfun
huffman@40621
  1402
  Rep_Sprod ~> Rep_sprod
huffman@40621
  1403
  Abs_Sprod ~> Abs_sprod
huffman@40621
  1404
  Rep_Ssum  ~> Rep_ssum
huffman@40621
  1405
  Abs_Ssum  ~> Abs_ssum
huffman@40621
  1406
huffman@40621
  1407
* Lemmas with names of the form *_defined_iff or *_strict_iff have
wenzelm@41571
  1408
been renamed to *_bottom_iff.  INCOMPATIBILITY.
huffman@40621
  1409
huffman@40621
  1410
* Various changes to bisimulation/coinduction with domain package:
wenzelm@41571
  1411
wenzelm@41571
  1412
  - Definitions of "bisim" constants no longer mention definedness.
wenzelm@41571
  1413
  - With mutual recursion, "bisim" predicate is now curried.
huffman@40621
  1414
  - With mutual recursion, each type gets a separate coind theorem.
huffman@40621
  1415
  - Variable names in bisim_def and coinduct rules have changed.
wenzelm@41571
  1416
huffman@40621
  1417
INCOMPATIBILITY.
huffman@40621
  1418
wenzelm@41571
  1419
* Case combinators generated by the domain package for type "foo" are
wenzelm@41571
  1420
now named "foo_case" instead of "foo_when".  INCOMPATIBILITY.
huffman@40621
  1421
huffman@40771
  1422
* Several theorems have been renamed to more accurately reflect the
wenzelm@41571
  1423
names of constants and types involved.  INCOMPATIBILITY.
wenzelm@41571
  1424
huffman@40771
  1425
  thelub_const    ~> lub_const
huffman@40771
  1426
  lub_const       ~> is_lub_const
huffman@40771
  1427
  thelubI         ~> lub_eqI
huffman@40771
  1428
  is_lub_lub      ~> is_lubD2
huffman@40771
  1429
  lubI            ~> is_lub_lub
huffman@40771
  1430
  unique_lub      ~> is_lub_unique
huffman@40771
  1431
  is_ub_lub       ~> is_lub_rangeD1
huffman@40771
  1432
  lub_bin_chain   ~> is_lub_bin_chain
huffman@41030
  1433
  lub_fun         ~> is_lub_fun
huffman@41030
  1434
  thelub_fun      ~> lub_fun
huffman@41031
  1435
  thelub_cfun     ~> lub_cfun
huffman@40771
  1436
  thelub_Pair     ~> lub_Pair
huffman@40771
  1437
  lub_cprod       ~> is_lub_prod
huffman@40771
  1438
  thelub_cprod    ~> lub_prod
huffman@40771
  1439
  minimal_cprod   ~> minimal_prod
huffman@40771
  1440
  inst_cprod_pcpo ~> inst_prod_pcpo
huffman@41430
  1441
  UU_I            ~> bottomI
huffman@41430
  1442
  compact_UU      ~> compact_bottom
huffman@41430
  1443
  deflation_UU    ~> deflation_bottom
huffman@41430
  1444
  finite_deflation_UU ~> finite_deflation_bottom
huffman@40771
  1445
wenzelm@41571
  1446
* Many legacy theorem names have been discontinued.  INCOMPATIBILITY.
wenzelm@41571
  1447
huffman@40621
  1448
  sq_ord_less_eq_trans ~> below_eq_trans
huffman@40621
  1449
  sq_ord_eq_less_trans ~> eq_below_trans
huffman@40621
  1450
  refl_less            ~> below_refl
huffman@40621
  1451
  trans_less           ~> below_trans
huffman@40621
  1452
  antisym_less         ~> below_antisym
huffman@40621
  1453
  antisym_less_inverse ~> po_eq_conv [THEN iffD1]
huffman@40621
  1454
  box_less             ~> box_below
huffman@40621
  1455
  rev_trans_less       ~> rev_below_trans
huffman@40621
  1456
  not_less2not_eq      ~> not_below2not_eq
huffman@40621
  1457
  less_UU_iff          ~> below_UU_iff
huffman@40621
  1458
  flat_less_iff        ~> flat_below_iff
huffman@40621
  1459
  adm_less             ~> adm_below
huffman@40621
  1460
  adm_not_less         ~> adm_not_below
huffman@40621
  1461
  adm_compact_not_less ~> adm_compact_not_below
huffman@40621
  1462
  less_fun_def         ~> below_fun_def
huffman@40621
  1463
  expand_fun_less      ~> fun_below_iff
huffman@40621
  1464
  less_fun_ext         ~> fun_belowI
huffman@40621
  1465
  less_discr_def       ~> below_discr_def
huffman@40621
  1466
  discr_less_eq        ~> discr_below_eq
huffman@40621
  1467
  less_unit_def        ~> below_unit_def
huffman@40621
  1468
  less_cprod_def       ~> below_prod_def
huffman@40621
  1469
  prod_lessI           ~> prod_belowI
huffman@40621
  1470
  Pair_less_iff        ~> Pair_below_iff
huffman@40621
  1471
  fst_less_iff         ~> fst_below_iff
huffman@40621
  1472
  snd_less_iff         ~> snd_below_iff
huffman@40621
  1473
  expand_cfun_less     ~> cfun_below_iff
huffman@40621
  1474
  less_cfun_ext        ~> cfun_belowI
huffman@40621
  1475
  injection_less       ~> injection_below
huffman@40621
  1476
  less_up_def          ~> below_up_def
huffman@40621
  1477
  not_Iup_less         ~> not_Iup_below
huffman@40621
  1478
  Iup_less             ~> Iup_below
huffman@40621
  1479
  up_less              ~> up_below
huffman@40621
  1480
  Def_inject_less_eq   ~> Def_below_Def
huffman@40621
  1481
  Def_less_is_eq       ~> Def_below_iff
huffman@40621
  1482
  spair_less_iff       ~> spair_below_iff
huffman@40621
  1483
  less_sprod           ~> below_sprod
huffman@40621
  1484
  spair_less           ~> spair_below
huffman@40621
  1485
  sfst_less_iff        ~> sfst_below_iff
huffman@40621
  1486
  ssnd_less_iff        ~> ssnd_below_iff
huffman@40621
  1487
  fix_least_less       ~> fix_least_below
huffman@40621
  1488
  dist_less_one        ~> dist_below_one
huffman@40621
  1489
  less_ONE             ~> below_ONE
huffman@40621
  1490
  ONE_less_iff         ~> ONE_below_iff
huffman@40621
  1491
  less_sinlD           ~> below_sinlD
huffman@40621
  1492
  less_sinrD           ~> below_sinrD
huffman@40621
  1493
huffman@40621
  1494
wenzelm@40948
  1495
*** FOL and ZF ***
haftmann@38522
  1496
wenzelm@41310
  1497
* All constant names are now qualified internally and use proper
wenzelm@41310
  1498
identifiers, e.g. "IFOL.eq" instead of "op =".  INCOMPATIBILITY.
wenzelm@41310
  1499
haftmann@38522
  1500
wenzelm@37868
  1501
*** ML ***
wenzelm@37868
  1502
wenzelm@41594
  1503
* Antiquotation @{assert} inlines a function bool -> unit that raises
wenzelm@41594
  1504
Fail if the argument is false.  Due to inlining the source position of
wenzelm@41594
  1505
failed assertions is included in the error output.
wenzelm@41594
  1506
wenzelm@41594
  1507
* Discontinued antiquotation @{theory_ref}, which is obsolete since ML
wenzelm@41594
  1508
text is in practice always evaluated with a stable theory checkpoint.
wenzelm@41594
  1509
Minor INCOMPATIBILITY, use (Theory.check_thy @{theory}) instead.
wenzelm@41594
  1510
wenzelm@41594
  1511
* Antiquotation @{theory A} refers to theory A from the ancestry of
wenzelm@41594
  1512
the current context, not any accidental theory loader state as before.
wenzelm@41594
  1513
Potential INCOMPATIBILITY, subtle change in semantics.
wenzelm@41228
  1514
wenzelm@40956
  1515
* Syntax.pretty_priority (default 0) configures the required priority
wenzelm@40956
  1516
of pretty-printed output and thus affects insertion of parentheses.
wenzelm@40956
  1517
wenzelm@40959
  1518
* Syntax.default_root (default "any") configures the inner syntax
wenzelm@40959
  1519
category (nonterminal symbol) for parsing of terms.
wenzelm@40959
  1520
wenzelm@40722
  1521
* Former exception Library.UnequalLengths now coincides with
wenzelm@40722
  1522
ListPair.UnequalLengths.
wenzelm@40722
  1523
wenzelm@41594
  1524
* Renamed structure MetaSimplifier to Raw_Simplifier.  Note that the
wenzelm@41594
  1525
main functionality is provided by structure Simplifier.
wenzelm@41594
  1526
wenzelm@40627
  1527
* Renamed raw "explode" function to "raw_explode" to emphasize its
wenzelm@40627
  1528
meaning.  Note that internally to Isabelle, Symbol.explode is used in
wenzelm@40627
  1529
almost all situations.
wenzelm@40627
  1530
wenzelm@40318
  1531
* Discontinued obsolete function sys_error and exception SYS_ERROR.
wenzelm@40318
  1532
See implementation manual for further details on exceptions in
wenzelm@40318
  1533
Isabelle/ML.
wenzelm@40318
  1534
wenzelm@39616
  1535
* Renamed setmp_noncritical to Unsynchronized.setmp to emphasize its
wenzelm@39616
  1536
meaning.
wenzelm@39616
  1537
wenzelm@39557
  1538
* Renamed structure PureThy to Pure_Thy and moved most of its
wenzelm@39557
  1539
operations to structure Global_Theory, to emphasize that this is
wenzelm@39557
  1540
rarely-used global-only stuff.
wenzelm@39557
  1541
wenzelm@39513
  1542
* Discontinued Output.debug.  Minor INCOMPATIBILITY, use plain writeln
wenzelm@39513
  1543
instead (or tracing for high-volume output).
wenzelm@39513
  1544
wenzelm@38980
  1545
* Configuration option show_question_marks only affects regular pretty
wenzelm@38980
  1546
printing of types and terms, not raw Term.string_of_vname.
wenzelm@38980
  1547
wenzelm@39164
  1548
* ML_Context.thm and ML_Context.thms are no longer pervasive.  Rare
wenzelm@39164
  1549
INCOMPATIBILITY, superseded by static antiquotations @{thm} and
wenzelm@39164
  1550
@{thms} for most purposes.
wenzelm@39164
  1551
wenzelm@41594
  1552
* ML structure Unsynchronized is never opened, not even in Isar
wenzelm@38980
  1553
interaction mode as before.  Old Unsynchronized.set etc. have been
wenzelm@38980
  1554
discontinued -- use plain := instead.  This should be *rare* anyway,
wenzelm@38980
  1555
since modern tools always work via official context data, notably
wenzelm@38980
  1556
configuration options.
wenzelm@38980
  1557
wenzelm@39239
  1558
* Parallel and asynchronous execution requires special care concerning
wenzelm@39239
  1559
interrupts.  Structure Exn provides some convenience functions that
wenzelm@39239
  1560
avoid working directly with raw Interrupt.  User code must not absorb
wenzelm@39239
  1561
interrupts -- intermediate handling (for cleanup etc.) needs to be
wenzelm@39239
  1562
followed by re-raising of the original exception.  Another common
wenzelm@39239
  1563
source of mistakes are "handle _" patterns, which make the meaning of
wenzelm@39239
  1564
the program subject to physical effects of the environment.
wenzelm@39239
  1565
wenzelm@37868
  1566
wenzelm@37868
  1567
wenzelm@37144
  1568
New in Isabelle2009-2 (June 2010)
wenzelm@37144
  1569
---------------------------------
haftmann@33993
  1570
wenzelm@35260
  1571
*** General ***
wenzelm@35260
  1572
wenzelm@35436
  1573
* Authentic syntax for *all* logical entities (type classes, type
wenzelm@35436
  1574
constructors, term constants): provides simple and robust
wenzelm@35436
  1575
correspondence between formal entities and concrete syntax.  Within
wenzelm@35436
  1576
the parse tree / AST representations, "constants" are decorated by
wenzelm@35436
  1577
their category (class, type, const) and spelled out explicitly with
wenzelm@35436
  1578
their full internal name.
wenzelm@35436
  1579
wenzelm@35436
  1580
Substantial INCOMPATIBILITY concerning low-level syntax declarations
wenzelm@35436
  1581
and translations (translation rules and translation functions in ML).
wenzelm@35436
  1582
Some hints on upgrading:
wenzelm@35260
  1583
wenzelm@35260
  1584
  - Many existing uses of 'syntax' and 'translations' can be replaced
wenzelm@35436
  1585
    by more modern 'type_notation', 'notation' and 'abbreviation',
wenzelm@35436
  1586
    which are independent of this issue.
wenzelm@35260
  1587
wenzelm@35260
  1588
  - 'translations' require markup within the AST; the term syntax
wenzelm@35260
  1589
    provides the following special forms:
wenzelm@35260
  1590
wenzelm@35260
  1591
      CONST c   -- produces syntax version of constant c from context
wenzelm@35261
  1592
      XCONST c  -- literally c, checked as constant from context
wenzelm@35261
  1593
      c         -- literally c, if declared by 'syntax'
wenzelm@35261
  1594
wenzelm@35261
  1595
    Plain identifiers are treated as AST variables -- occasionally the
wenzelm@35261
  1596
    system indicates accidental variables via the error "rhs contains
wenzelm@35261
  1597
    extra variables".
wenzelm@35260
  1598
wenzelm@35436
  1599
    Type classes and type constructors are marked according to their
wenzelm@35436
  1600
    concrete syntax.  Some old translations rules need to be written
wenzelm@35436
  1601
    for the "type" category, using type constructor application
wenzelm@35436
  1602
    instead of pseudo-term application of the default category
wenzelm@35436
  1603
    "logic".
wenzelm@35436
  1604
wenzelm@35260
  1605
  - 'parse_translation' etc. in ML may use the following
wenzelm@35260
  1606
    antiquotations:
wenzelm@35260
  1607
wenzelm@35436
  1608
      @{class_syntax c}   -- type class c within parse tree / AST
wenzelm@35436
  1609
      @{term_syntax c}    -- type constructor c within parse tree / AST
wenzelm@35260
  1610
      @{const_syntax c}   -- ML version of "CONST c" above
wenzelm@35260
  1611
      @{syntax_const c}   -- literally c (checked wrt. 'syntax' declarations)
wenzelm@35260
  1612
wenzelm@35436
  1613
  - Literal types within 'typed_print_translations', i.e. those *not*
wenzelm@35436
  1614
    represented as pseudo-terms are represented verbatim.  Use @{class
wenzelm@35436
  1615
    c} or @{type_name c} here instead of the above syntax
wenzelm@35436
  1616
    antiquotations.
wenzelm@35436
  1617
wenzelm@35260
  1618
Note that old non-authentic syntax was based on unqualified base
wenzelm@35436
  1619
names, so all of the above "constant" names would coincide.  Recall
wenzelm@35436
  1620
that 'print_syntax' and ML_command "set Syntax.trace_ast" help to
wenzelm@35436
  1621
diagnose syntax problems.
wenzelm@35260
  1622
wenzelm@35351
  1623
* Type constructors admit general mixfix syntax, not just infix.
wenzelm@35351
  1624
wenzelm@36508
  1625
* Concrete syntax may be attached to local entities without a proof
wenzelm@36508
  1626
body, too.  This works via regular mixfix annotations for 'fix',
wenzelm@36508
  1627
'def', 'obtain' etc. or via the explicit 'write' command, which is
wenzelm@36508
  1628
similar to the 'notation' command in theory specifications.
wenzelm@36508
  1629
wenzelm@37351
  1630
* Discontinued unnamed infix syntax (legacy feature for many years) --
wenzelm@37351
  1631
need to specify constant name and syntax separately.  Internal ML
wenzelm@37351
  1632
datatype constructors have been renamed from InfixName to Infix etc.
wenzelm@37351
  1633
Minor INCOMPATIBILITY.
wenzelm@37351
  1634
wenzelm@37351
  1635
* Schematic theorem statements need to be explicitly markup as such,
wenzelm@37351
  1636
via commands 'schematic_lemma', 'schematic_theorem',
wenzelm@37351
  1637
'schematic_corollary'.  Thus the relevance of the proof is made
wenzelm@37351
  1638
syntactically clear, which impacts performance in a parallel or
wenzelm@37351
  1639
asynchronous interactive environment.  Minor INCOMPATIBILITY.
wenzelm@37351
  1640
wenzelm@35613
  1641
* Use of cumulative prems via "!" in some proof methods has been
wenzelm@37351
  1642
discontinued (old legacy feature).
wenzelm@35613
  1643
boehmes@35979
  1644
* References 'trace_simp' and 'debug_simp' have been replaced by
wenzelm@36857
  1645
configuration options stored in the context. Enabling tracing (the
wenzelm@36857
  1646
case of debugging is similar) in proofs works via
wenzelm@36857
  1647
wenzelm@36857
  1648
  using [[trace_simp = true]]
wenzelm@36857
  1649
wenzelm@36857
  1650
Tracing is then active for all invocations of the simplifier in
wenzelm@36857
  1651
subsequent goal refinement steps. Tracing may also still be enabled or
wenzelm@40780
  1652
disabled via the ProofGeneral settings menu.
boehmes@35979
  1653
wenzelm@36177
  1654
* Separate commands 'hide_class', 'hide_type', 'hide_const',
wenzelm@36177
  1655
'hide_fact' replace the former 'hide' KIND command.  Minor
wenzelm@36177
  1656
INCOMPATIBILITY.
wenzelm@36177
  1657
wenzelm@37298
  1658
* Improved parallelism of proof term normalization: usedir -p2 -q0 is
wenzelm@37298
  1659
more efficient than combinations with -q1 or -q2.
wenzelm@37298
  1660
wenzelm@35260
  1661
haftmann@34170
  1662
*** Pure ***
haftmann@34170
  1663
wenzelm@37351
  1664
* Proofterms record type-class reasoning explicitly, using the
wenzelm@37351
  1665
"unconstrain" operation internally.  This eliminates all sort
wenzelm@37351
  1666
constraints from a theorem and proof, introducing explicit
wenzelm@37351
  1667
OFCLASS-premises.  On the proof term level, this operation is
wenzelm@37351
  1668
automatically applied at theorem boundaries, such that closed proofs
wenzelm@37351
  1669
are always free of sort constraints.  INCOMPATIBILITY for tools that
wenzelm@37351
  1670
inspect proof terms.
haftmann@36147
  1671
wenzelm@35765
  1672
* Local theory specifications may depend on extra type variables that
wenzelm@35765
  1673
are not present in the result type -- arguments TYPE('a) :: 'a itself
wenzelm@35765
  1674
are added internally.  For example:
wenzelm@35765
  1675
wenzelm@35765
  1676
  definition unitary :: bool where "unitary = (ALL (x::'a) y. x = y)"
wenzelm@35765
  1677
wenzelm@37351
  1678
* Predicates of locales introduced by classes carry a mandatory
wenzelm@37351
  1679
"class" prefix.  INCOMPATIBILITY.
wenzelm@37351
  1680
wenzelm@37351
  1681
* Vacuous class specifications observe default sort.  INCOMPATIBILITY.
wenzelm@37351
  1682
wenzelm@37351
  1683
* Old 'axclass' command has been discontinued.  INCOMPATIBILITY, use
wenzelm@37351
  1684
'class' instead.
wenzelm@37351
  1685
wenzelm@37351
  1686
* Command 'code_reflect' allows to incorporate generated ML code into
wenzelm@37351
  1687
runtime environment; replaces immature code_datatype antiquotation.
wenzelm@37351
  1688
INCOMPATIBILITY.
wenzelm@37351
  1689
wenzelm@37351
  1690
* Code generator: simple concept for abstract datatypes obeying
wenzelm@37351
  1691
invariants.
wenzelm@37351
  1692
wenzelm@36857
  1693
* Code generator: details of internal data cache have no impact on the
wenzelm@36857
  1694
user space functionality any longer.
wenzelm@36857
  1695
wenzelm@37351
  1696
* Methods "unfold_locales" and "intro_locales" ignore non-locale
wenzelm@37351
  1697
subgoals.  This is more appropriate for interpretations with 'where'.
wenzelm@36857
  1698
INCOMPATIBILITY.
haftmann@34170
  1699
wenzelm@36356
  1700
* Command 'example_proof' opens an empty proof body.  This allows to
wenzelm@36356
  1701
experiment with Isar, without producing any persistent result.
wenzelm@36356
  1702
wenzelm@35413
  1703
* Commands 'type_notation' and 'no_type_notation' declare type syntax
wenzelm@35413
  1704
within a local theory context, with explicit checking of the
wenzelm@35413
  1705
constructors involved (in contrast to the raw 'syntax' versions).
wenzelm@35413
  1706
wenzelm@36178
  1707
* Commands 'types' and 'typedecl' now work within a local theory
wenzelm@36178
  1708
context -- without introducing dependencies on parameters or
wenzelm@36178
  1709
assumptions, which is not possible in Isabelle/Pure.
wenzelm@35681
  1710
wenzelm@36857
  1711
* Command 'defaultsort' has been renamed to 'default_sort', it works
wenzelm@36857
  1712
within a local theory context.  Minor INCOMPATIBILITY.
wenzelm@36454
  1713
haftmann@34170
  1714
haftmann@33993
  1715
*** HOL ***
haftmann@33993
  1716
wenzelm@37351
  1717
* Command 'typedef' now works within a local theory context -- without
wenzelm@37351
  1718
introducing dependencies on parameters or assumptions, which is not
wenzelm@37351
  1719
possible in Isabelle/Pure/HOL.  Note that the logical environment may
wenzelm@37351
  1720
contain multiple interpretations of local typedefs (with different
wenzelm@37351
  1721
non-emptiness proofs), even in a global theory context.
wenzelm@37351
  1722
wenzelm@37351
  1723
* New package for quotient types.  Commands 'quotient_type' and
wenzelm@37351
  1724
'quotient_definition' may be used for defining types and constants by
wenzelm@37351
  1725
quotient constructions.  An example is the type of integers created by
wenzelm@37351
  1726
quotienting pairs of natural numbers:
wenzelm@37380
  1727
wenzelm@37351
  1728
  fun
wenzelm@37380
  1729
    intrel :: "(nat * nat) => (nat * nat) => bool"
wenzelm@37351
  1730
  where
wenzelm@37351
  1731
    "intrel (x, y) (u, v) = (x + v = u + y)"
wenzelm@37351
  1732
wenzelm@37380
  1733
  quotient_type int = "nat * nat" / intrel
wenzelm@37351
  1734
    by (auto simp add: equivp_def expand_fun_eq)
wenzelm@37380
  1735
wenzelm@37351
  1736
  quotient_definition
wenzelm@37351
  1737
    "0::int" is "(0::nat, 0::nat)"
wenzelm@37351
  1738
wenzelm@37351
  1739
The method "lifting" can be used to lift of theorems from the
wenzelm@37351
  1740
underlying "raw" type to the quotient type.  The example
wenzelm@37351
  1741
src/HOL/Quotient_Examples/FSet.thy includes such a quotient
wenzelm@37351
  1742
construction and provides a reasoning infrastructure for finite sets.
wenzelm@37351
  1743
wenzelm@37351
  1744
* Renamed Library/Quotient.thy to Library/Quotient_Type.thy to avoid
wenzelm@37351
  1745
clash with new theory Quotient in Main HOL.
wenzelm@37351
  1746
wenzelm@37351
  1747
* Moved the SMT binding into the main HOL session, eliminating
wenzelm@37351
  1748
separate HOL-SMT session.
wenzelm@37351
  1749
haftmann@37020
  1750
* List membership infix mem operation is only an input abbreviation.
haftmann@37020
  1751
INCOMPATIBILITY.
haftmann@37020
  1752
wenzelm@37144
  1753
* Theory Library/Word.thy has been removed.  Use library Word/Word.thy
wenzelm@37144
  1754
for future developements; former Library/Word.thy is still present in
wenzelm@37144
  1755
the AFP entry RSAPPS.
haftmann@36963
  1756
wenzelm@36857
  1757
* Theorem Int.int_induct renamed to Int.int_of_nat_induct and is no
wenzelm@36857
  1758
longer shadowed.  INCOMPATIBILITY.
haftmann@36808
  1759
huffman@36836
  1760
* Dropped theorem duplicate comp_arith; use semiring_norm instead.
huffman@36836
  1761
INCOMPATIBILITY.
huffman@36836
  1762
huffman@36836
  1763
* Dropped theorem RealPow.real_sq_order; use power2_le_imp_le instead.
huffman@36836
  1764
INCOMPATIBILITY.
haftmann@36714
  1765
wenzelm@36857
  1766
* Dropped normalizing_semiring etc; use the facts in semiring classes
wenzelm@36857
  1767
instead.  INCOMPATIBILITY.
wenzelm@36857
  1768
huffman@36979
  1769
* Dropped several real-specific versions of lemmas about floor and
wenzelm@37351
  1770
ceiling; use the generic lemmas from theory "Archimedean_Field"
wenzelm@37351
  1771
instead.  INCOMPATIBILITY.
huffman@36979
  1772
huffman@36979
  1773
  floor_number_of_eq         ~> floor_number_of
huffman@36979
  1774
  le_floor_eq_number_of      ~> number_of_le_floor
huffman@36979
  1775
  le_floor_eq_zero           ~> zero_le_floor
huffman@36979
  1776
  le_floor_eq_one            ~> one_le_floor
huffman@36979
  1777
  floor_less_eq_number_of    ~> floor_less_number_of
huffman@36979
  1778
  floor_less_eq_zero         ~> floor_less_zero
huffman@36979
  1779
  floor_less_eq_one          ~> floor_less_one
huffman@36979
  1780
  less_floor_eq_number_of    ~> number_of_less_floor
huffman@36979
  1781
  less_floor_eq_zero         ~> zero_less_floor
huffman@36979
  1782
  less_floor_eq_one          ~> one_less_floor
huffman@36979
  1783
  floor_le_eq_number_of      ~> floor_le_number_of
huffman@36979
  1784
  floor_le_eq_zero           ~> floor_le_zero
huffman@36979
  1785
  floor_le_eq_one            ~> floor_le_one
huffman@36979
  1786
  floor_subtract_number_of   ~> floor_diff_number_of
huffman@36979
  1787
  floor_subtract_one         ~> floor_diff_one
huffman@36979
  1788
  ceiling_number_of_eq       ~> ceiling_number_of
huffman@36979
  1789
  ceiling_le_eq_number_of    ~> ceiling_le_number_of
huffman@36979
  1790
  ceiling_le_zero_eq         ~> ceiling_le_zero
huffman@36979
  1791
  ceiling_le_eq_one          ~> ceiling_le_one
huffman@36979
  1792
  less_ceiling_eq_number_of  ~> number_of_less_ceiling
huffman@36979
  1793
  less_ceiling_eq_zero       ~> zero_less_ceiling
huffman@36979
  1794
  less_ceiling_eq_one        ~> one_less_ceiling
huffman@36979
  1795
  ceiling_less_eq_number_of  ~> ceiling_less_number_of
huffman@36979
  1796
  ceiling_less_eq_zero       ~> ceiling_less_zero
huffman@36979
  1797
  ceiling_less_eq_one        ~> ceiling_less_one
huffman@36979
  1798
  le_ceiling_eq_number_of    ~> number_of_le_ceiling
huffman@36979
  1799
  le_ceiling_eq_zero         ~> zero_le_ceiling
huffman@36979
  1800
  le_ceiling_eq_one          ~> one_le_ceiling
huffman@36979
  1801
  ceiling_subtract_number_of ~> ceiling_diff_number_of
huffman@36979
  1802
  ceiling_subtract_one       ~> ceiling_diff_one
huffman@36979
  1803
wenzelm@37144
  1804
* Theory "Finite_Set": various folding_XXX locales facilitate the
wenzelm@36857
  1805
application of the various fold combinators on finite sets.
wenzelm@36857
  1806
wenzelm@36857
  1807
* Library theory "RBT" renamed to "RBT_Impl"; new library theory "RBT"
wenzelm@36857
  1808
provides abstract red-black tree type which is backed by "RBT_Impl" as
wenzelm@36857
  1809
implementation.  INCOMPATIBILTY.
haftmann@36147
  1810
huffman@36830
  1811
* Theory Library/Coinductive_List has been removed -- superseded by
wenzelm@35763
  1812
AFP/thys/Coinductive.
wenzelm@35763
  1813
huffman@36829
  1814
* Theory PReal, including the type "preal" and related operations, has
huffman@36829
  1815
been removed.  INCOMPATIBILITY.
huffman@36829
  1816
wenzelm@37380
  1817
* Real: new development using Cauchy Sequences.
wenzelm@37380
  1818
wenzelm@37351
  1819
* Split off theory "Big_Operators" containing setsum, setprod,
wenzelm@37351
  1820
Inf_fin, Sup_fin, Min, Max from theory Finite_Set.  INCOMPATIBILITY.
wenzelm@36857
  1821
wenzelm@36857
  1822
* Theory "Rational" renamed to "Rat", for consistency with "Nat",
wenzelm@36857
  1823
"Int" etc.  INCOMPATIBILITY.
wenzelm@36857
  1824
wenzelm@37351
  1825
* Constant Rat.normalize needs to be qualified.  INCOMPATIBILITY.
wenzelm@37143
  1826
wenzelm@36857
  1827
* New set of rules "ac_simps" provides combined assoc / commute
wenzelm@36857
  1828
rewrites for all interpretations of the appropriate generic locales.
wenzelm@36857
  1829
wenzelm@36857
  1830
* Renamed theory "OrderedGroup" to "Groups" and split theory
wenzelm@36857
  1831
"Ring_and_Field" into theories "Rings" and "Fields"; for more
wenzelm@36857
  1832
appropriate and more consistent names suitable for name prefixes
wenzelm@36857
  1833
within the HOL theories.  INCOMPATIBILITY.
haftmann@35050
  1834
haftmann@35084
  1835
* Some generic constants have been put to appropriate theories:
wenzelm@36857
  1836
  - less_eq, less: Orderings
wenzelm@36857
  1837
  - zero, one, plus, minus, uminus, times, abs, sgn: Groups
wenzelm@36857
  1838
  - inverse, divide: Rings
haftmann@35084
  1839
INCOMPATIBILITY.
haftmann@35084
  1840
wenzelm@36857
  1841
* More consistent naming of type classes involving orderings (and
wenzelm@36857
  1842
lattices):
haftmann@35027
  1843
haftmann@35027
  1844
    lower_semilattice                   ~> semilattice_inf
haftmann@35027
  1845
    upper_semilattice                   ~> semilattice_sup
haftmann@35027
  1846
haftmann@35027
  1847
    dense_linear_order                  ~> dense_linorder
haftmann@35027
  1848
haftmann@35027
  1849
    pordered_ab_group_add               ~> ordered_ab_group_add
haftmann@35027
  1850
    pordered_ab_group_add_abs           ~> ordered_ab_group_add_abs
haftmann@35027
  1851
    pordered_ab_semigroup_add           ~> ordered_ab_semigroup_add
haftmann@35027
  1852
    pordered_ab_semigroup_add_imp_le    ~> ordered_ab_semigroup_add_imp_le
haftmann@35027
  1853
    pordered_cancel_ab_semigroup_add    ~> ordered_cancel_ab_semigroup_add
haftmann@35027
  1854
    pordered_cancel_comm_semiring       ~> ordered_cancel_comm_semiring
haftmann@35027
  1855
    pordered_cancel_semiring            ~> ordered_cancel_semiring
haftmann@35027
  1856
    pordered_comm_monoid_add            ~> ordered_comm_monoid_add
haftmann@35027
  1857
    pordered_comm_ring                  ~> ordered_comm_ring
haftmann@35027
  1858
    pordered_comm_semiring              ~> ordered_comm_semiring
haftmann@35027
  1859
    pordered_ring                       ~> ordered_ring
haftmann@35027
  1860
    pordered_ring_abs                   ~> ordered_ring_abs
haftmann@35027
  1861
    pordered_semiring                   ~> ordered_semiring
haftmann@35027
  1862
haftmann@35027
  1863
    ordered_ab_group_add                ~> linordered_ab_group_add
haftmann@35027
  1864
    ordered_ab_semigroup_add            ~> linordered_ab_semigroup_add
haftmann@35027
  1865
    ordered_cancel_ab_semigroup_add     ~> linordered_cancel_ab_semigroup_add
haftmann@35027
  1866
    ordered_comm_semiring_strict        ~> linordered_comm_semiring_strict
haftmann@35027
  1867
    ordered_field                       ~> linordered_field
haftmann@35027
  1868
    ordered_field_no_lb                 ~> linordered_field_no_lb
haftmann@35027
  1869
    ordered_field_no_ub                 ~> linordered_field_no_ub
haftmann@35027
  1870
    ordered_field_dense_linear_order    ~> dense_linordered_field
haftmann@35027
  1871
    ordered_idom                        ~> linordered_idom
haftmann@35027
  1872
    ordered_ring                        ~> linordered_ring
haftmann@35027
  1873
    ordered_ring_le_cancel_factor       ~> linordered_ring_le_cancel_factor
haftmann@35027
  1874
    ordered_ring_less_cancel_factor     ~> linordered_ring_less_cancel_factor
haftmann@35027
  1875
    ordered_ring_strict                 ~> linordered_ring_strict
haftmann@35027
  1876
    ordered_semidom                     ~> linordered_semidom
haftmann@35027
  1877
    ordered_semiring                    ~> linordered_semiring
haftmann@35027
  1878
    ordered_semiring_1                  ~> linordered_semiring_1
haftmann@35027
  1879
    ordered_semiring_1_strict           ~> linordered_semiring_1_strict
haftmann@35027
  1880
    ordered_semiring_strict             ~> linordered_semiring_strict
haftmann@35027
  1881
wenzelm@36857
  1882
  The following slightly odd type classes have been moved to a
wenzelm@37351
  1883
  separate theory Library/Lattice_Algebras:
haftmann@35032
  1884
haftmann@35032
  1885
    lordered_ab_group_add               ~> lattice_ab_group_add
haftmann@35032
  1886
    lordered_ab_group_add_abs           ~> lattice_ab_group_add_abs
haftmann@35032
  1887
    lordered_ab_group_add_meet          ~> semilattice_inf_ab_group_add
haftmann@35032
  1888
    lordered_ab_group_add_join          ~> semilattice_sup_ab_group_add
haftmann@35032
  1889
    lordered_ring                       ~> lattice_ring
haftmann@35032
  1890
haftmann@35027
  1891
INCOMPATIBILITY.
haftmann@35027
  1892
haftmann@36416
  1893
* Refined field classes:
wenzelm@36857
  1894
  - classes division_ring_inverse_zero, field_inverse_zero,
wenzelm@36857
  1895
    linordered_field_inverse_zero include rule inverse 0 = 0 --
wenzelm@36857
  1896
    subsumes former division_by_zero class;
wenzelm@36857
  1897
  - numerous lemmas have been ported from field to division_ring.
wenzelm@36857
  1898
INCOMPATIBILITY.
haftmann@36416
  1899
haftmann@36416
  1900
* Refined algebra theorem collections:
wenzelm@36857
  1901
  - dropped theorem group group_simps, use algebra_simps instead;
wenzelm@36857
  1902
  - dropped theorem group ring_simps, use field_simps instead;
wenzelm@36857
  1903
  - proper theorem collection field_simps subsumes former theorem
wenzelm@36857
  1904
    groups field_eq_simps and field_simps;
wenzelm@36857
  1905
  - dropped lemma eq_minus_self_iff which is a duplicate for
wenzelm@36857
  1906
    equal_neg_zero.
wenzelm@36857
  1907
INCOMPATIBILITY.
wenzelm@35009
  1908
wenzelm@35009
  1909
* Theory Finite_Set and List: some lemmas have been generalized from
wenzelm@34076
  1910
sets to lattices:
wenzelm@34076
  1911
haftmann@34007
  1912
  fun_left_comm_idem_inter      ~> fun_left_comm_idem_inf
haftmann@34007
  1913
  fun_left_comm_idem_union      ~> fun_left_comm_idem_sup
haftmann@34007
  1914
  inter_Inter_fold_inter        ~> inf_Inf_fold_inf
haftmann@34007
  1915
  union_Union_fold_union        ~> sup_Sup_fold_sup
haftmann@34007
  1916
  Inter_fold_inter              ~> Inf_fold_inf
haftmann@34007
  1917
  Union_fold_union              ~> Sup_fold_sup
haftmann@34007
  1918
  inter_INTER_fold_inter        ~> inf_INFI_fold_inf
haftmann@34007
  1919
  union_UNION_fold_union        ~> sup_SUPR_fold_sup
haftmann@34007
  1920
  INTER_fold_inter              ~> INFI_fold_inf
haftmann@34007
  1921
  UNION_fold_union              ~> SUPR_fold_sup
haftmann@34007
  1922
wenzelm@44973
  1923
* Theory "Complete_Lattice": lemmas top_def and bot_def have been
wenzelm@44973
  1924
replaced by the more convenient lemmas Inf_empty and Sup_empty.
wenzelm@44973
  1925
Dropped lemmas Inf_insert_simp and Sup_insert_simp, which are subsumed
wenzelm@44973
  1926
by Inf_insert and Sup_insert.  Lemmas Inf_UNIV and Sup_UNIV replace
wenzelm@44973
  1927
former Inf_Univ and Sup_Univ.  Lemmas inf_top_right and sup_bot_right
wenzelm@44973
  1928
subsume inf_top and sup_bot respectively.  INCOMPATIBILITY.
haftmann@36416
  1929
wenzelm@36857
  1930
* Reorganized theory Multiset: swapped notation of pointwise and
wenzelm@36857
  1931
multiset order:
wenzelm@37351
  1932
wenzelm@36857
  1933
  - pointwise ordering is instance of class order with standard syntax
wenzelm@36857
  1934
    <= and <;
wenzelm@36857
  1935
  - multiset ordering has syntax <=# and <#; partial order properties
wenzelm@36857
  1936
    are provided by means of interpretation with prefix
wenzelm@36857
  1937
    multiset_order;
wenzelm@36857
  1938
  - less duplication, less historical organization of sections,
wenzelm@36857
  1939
    conversion from associations lists to multisets, rudimentary code
wenzelm@36857
  1940
    generation;
wenzelm@36857
  1941
  - use insert_DiffM2 [symmetric] instead of elem_imp_eq_diff_union,
wenzelm@36857
  1942
    if needed.
wenzelm@37351
  1943
nipkow@36903
  1944
Renamed:
wenzelm@37351
  1945
wenzelm@37351
  1946
  multiset_eq_conv_count_eq  ~>  multiset_ext_iff
wenzelm@37351
  1947
  multi_count_ext  ~>  multiset_ext
wenzelm@37351
  1948
  diff_union_inverse2  ~>  diff_union_cancelR
wenzelm@37351
  1949
wenzelm@36857
  1950
INCOMPATIBILITY.
haftmann@36416
  1951
nipkow@36903
  1952
* Theory Permutation: replaced local "remove" by List.remove1.
nipkow@36903
  1953
haftmann@36416
  1954
* Code generation: ML and OCaml code is decorated with signatures.
haftmann@36416
  1955
wenzelm@35009
  1956
* Theory List: added transpose.
wenzelm@35009
  1957
huffman@35810
  1958
* Library/Nat_Bijection.thy is a collection of bijective functions
huffman@35810
  1959
between nat and other types, which supersedes the older libraries
huffman@35810
  1960
Library/Nat_Int_Bij.thy and HOLCF/NatIso.thy.  INCOMPATIBILITY.
huffman@35810
  1961
huffman@35810
  1962
  Constants:
huffman@35810
  1963
  Nat_Int_Bij.nat2_to_nat         ~> prod_encode
huffman@35810
  1964
  Nat_Int_Bij.nat_to_nat2         ~> prod_decode
huffman@35810
  1965
  Nat_Int_Bij.int_to_nat_bij      ~> int_encode
huffman@35810
  1966
  Nat_Int_Bij.nat_to_int_bij      ~> int_decode
huffman@35810
  1967
  Countable.pair_encode           ~> prod_encode
huffman@35810
  1968
  NatIso.prod2nat                 ~> prod_encode
huffman@35810
  1969
  NatIso.nat2prod                 ~> prod_decode
huffman@35810
  1970
  NatIso.sum2nat                  ~> sum_encode
huffman@35810
  1971
  NatIso.nat2sum                  ~> sum_decode
huffman@35810
  1972
  NatIso.list2nat                 ~> list_encode
huffman@35810
  1973
  NatIso.nat2list                 ~> list_decode
huffman@35810
  1974
  NatIso.set2nat                  ~> set_encode
huffman@35810
  1975
  NatIso.nat2set                  ~> set_decode
huffman@35810
  1976
huffman@35810
  1977
  Lemmas:
huffman@35810
  1978
  Nat_Int_Bij.bij_nat_to_int_bij  ~> bij_int_decode
huffman@35810
  1979
  Nat_Int_Bij.nat2_to_nat_inj     ~> inj_prod_encode
huffman@35810
  1980
  Nat_Int_Bij.nat2_to_nat_surj    ~> surj_prod_encode
huffman@35810
  1981
  Nat_Int_Bij.nat_to_nat2_inj     ~> inj_prod_decode
huffman@35810
  1982
  Nat_Int_Bij.nat_to_nat2_surj    ~> surj_prod_decode
huffman@35810
  1983
  Nat_Int_Bij.i2n_n2i_id          ~> int_encode_inverse
huffman@35810
  1984
  Nat_Int_Bij.n2i_i2n_id          ~> int_decode_inverse
huffman@35810
  1985
  Nat_Int_Bij.surj_nat_to_int_bij ~> surj_int_encode
huffman@35810
  1986
  Nat_Int_Bij.surj_int_to_nat_bij ~> surj_int_decode
huffman@35810
  1987
  Nat_Int_Bij.inj_nat_to_int_bij  ~> inj_int_encode
huffman@35810
  1988
  Nat_Int_Bij.inj_int_to_nat_bij  ~> inj_int_decode
huffman@35810
  1989
  Nat_Int_Bij.bij_nat_to_int_bij  ~> bij_int_encode
huffman@35810
  1990
  Nat_Int_Bij.bij_int_to_nat_bij  ~> bij_int_decode
huffman@35810
  1991
blanchet@36929
  1992
* Sledgehammer:
blanchet@36929
  1993
  - Renamed ATP commands:
blanchet@36929
  1994
    atp_info     ~> sledgehammer running_atps
blanchet@36929
  1995
    atp_kill     ~> sledgehammer kill_atps
blanchet@36929
  1996
    atp_messages ~> sledgehammer messages
blanchet@36929
  1997
    atp_minimize ~> sledgehammer minimize
blanchet@36929
  1998
    print_atps   ~> sledgehammer available_atps
blanchet@36929
  1999
    INCOMPATIBILITY.
blanchet@36929
  2000
  - Added user's manual ("isabelle doc sledgehammer").
blanchet@36929
  2001
  - Added option syntax and "sledgehammer_params" to customize
blanchet@36929
  2002
    Sledgehammer's behavior.  See the manual for details.
blanchet@36929
  2003
  - Modified the Isar proof reconstruction code so that it produces
blanchet@36929
  2004
    direct proofs rather than proofs by contradiction.  (This feature
blanchet@36929
  2005
    is still experimental.)
blanchet@36929
  2006
  - Made Isar proof reconstruction work for SPASS, remote ATPs, and in
blanchet@36929
  2007
    full-typed mode.
blanchet@36929
  2008
  - Added support for TPTP syntax for SPASS via the "spass_tptp" ATP.
blanchet@36929
  2009
blanchet@36928
  2010
* Nitpick:
blanchet@36928
  2011
  - Added and implemented "binary_ints" and "bits" options.
blanchet@36928
  2012
  - Added "std" option and implemented support for nonstandard models.
blanchet@36928
  2013
  - Added and implemented "finitize" option to improve the precision
blanchet@36928
  2014
    of infinite datatypes based on a monotonicity analysis.
blanchet@36928
  2015
  - Added support for quotient types.
blanchet@36928
  2016
  - Added support for "specification" and "ax_specification"
blanchet@36928
  2017
    constructs.
blanchet@36928
  2018
  - Added support for local definitions (for "function" and
blanchet@36928
  2019
    "termination" proofs).
blanchet@36928
  2020
  - Added support for term postprocessors.
blanchet@36928
  2021
  - Optimized "Multiset.multiset" and "FinFun.finfun".
blanchet@36928
  2022
  - Improved efficiency of "destroy_constrs" optimization.
blanchet@36928
  2023
  - Fixed soundness bugs related to "destroy_constrs" optimization and
blanchet@36928
  2024
    record getters.
blanchet@37272
  2025
  - Fixed soundness bug related to higher-order constructors.
blanchet@37272
  2026
  - Fixed soundness bug when "full_descrs" is enabled.
blanchet@36928
  2027
  - Improved precision of set constructs.
blanchet@37260
  2028
  - Added "atoms" option.
blanchet@36928
  2029
  - Added cache to speed up repeated Kodkod invocations on the same
blanchet@36928
  2030
    problems.
blanchet@36928
  2031
  - Renamed "MiniSatJNI", "zChaffJNI", "BerkMinAlloy", and
blanchet@36928
  2032
    "SAT4JLight" to "MiniSat_JNI", "zChaff_JNI", "BerkMin_Alloy", and
blanchet@36928
  2033
    "SAT4J_Light".  INCOMPATIBILITY.
blanchet@36928
  2034
  - Removed "skolemize", "uncurry", "sym_break", "flatten_prop",
blanchet@36928
  2035
    "sharing_depth", and "show_skolems" options.  INCOMPATIBILITY.
blanchet@37264
  2036
  - Removed "nitpick_intro" attribute.  INCOMPATIBILITY.
blanchet@36928
  2037
berghofe@37361
  2038
* Method "induct" now takes instantiations of the form t, where t is not
berghofe@37361
  2039
  a variable, as a shorthand for "x == t", where x is a fresh variable.
berghofe@37361
  2040
  If this is not intended, t has to be enclosed in parentheses.
berghofe@37361
  2041
  By default, the equalities generated by definitional instantiations
berghofe@37361
  2042
  are pre-simplified, which may cause parameters of inductive cases
berghofe@37361
  2043
  to disappear, or may even delete some of the inductive cases.
berghofe@37361
  2044
  Use "induct (no_simp)" instead of "induct" to restore the old
berghofe@37361
  2045
  behaviour. The (no_simp) option is also understood by the "cases"
berghofe@37361
  2046
  and "nominal_induct" methods, which now perform pre-simplification, too.
berghofe@37361
  2047
  INCOMPATIBILITY.
berghofe@37361
  2048
haftmann@33993
  2049
huffman@36828
  2050
*** HOLCF ***
huffman@36828
  2051
huffman@36828
  2052
* Variable names in lemmas generated by the domain package have
huffman@36828
  2053
changed; the naming scheme is now consistent with the HOL datatype
huffman@36828
  2054
package.  Some proof scripts may be affected, INCOMPATIBILITY.
huffman@36828
  2055
huffman@36828
  2056
* The domain package no longer defines the function "foo_copy" for
huffman@36828
  2057
recursive domain "foo".  The reach lemma is now stated directly in
huffman@36828
  2058
terms of "foo_take".  Lemmas and proofs that mention "foo_copy" must
huffman@36828
  2059
be reformulated in terms of "foo_take", INCOMPATIBILITY.
huffman@36828
  2060
huffman@36828
  2061
* Most definedness lemmas generated by the domain package (previously
huffman@36828
  2062
of the form "x ~= UU ==> foo$x ~= UU") now have an if-and-only-if form
huffman@36828
  2063
like "foo$x = UU <-> x = UU", which works better as a simp rule.
wenzelm@37351
  2064
Proofs that used definedness lemmas as intro rules may break,
huffman@36828
  2065
potential INCOMPATIBILITY.
huffman@36828
  2066
huffman@36828
  2067
* Induction and casedist rules generated by the domain package now
huffman@36828
  2068
declare proper case_names (one called "bottom", and one named for each
huffman@36828
  2069
constructor).  INCOMPATIBILITY.
huffman@36828
  2070
huffman@36828
  2071
* For mutually-recursive domains, separate "reach" and "take_lemma"
huffman@36828
  2072
rules are generated for each domain, INCOMPATIBILITY.
huffman@36828
  2073
huffman@36828
  2074
  foo_bar.reach       ~> foo.reach  bar.reach
huffman@36828
  2075
  foo_bar.take_lemmas ~> foo.take_lemma  bar.take_lemma
huffman@36828
  2076
huffman@36828
  2077
* Some lemmas generated by the domain package have been renamed for
huffman@36828
  2078
consistency with the datatype package, INCOMPATIBILITY.
huffman@36828
  2079
huffman@36828
  2080
  foo.ind        ~> foo.induct
huffman@36828
  2081
  foo.finite_ind ~> foo.finite_induct
huffman@36828
  2082
  foo.coind      ~> foo.coinduct
huffman@36828
  2083
  foo.casedist   ~> foo.exhaust
huffman@36828
  2084
  foo.exhaust    ~> foo.nchotomy
huffman@36828
  2085
huffman@36828
  2086
* For consistency with other definition packages, the fixrec package
huffman@36828
  2087
now generates qualified theorem names, INCOMPATIBILITY.
huffman@36828
  2088
huffman@36828
  2089
  foo_simps  ~> foo.simps
huffman@36828
  2090
  foo_unfold ~> foo.unfold
huffman@36828
  2091
  foo_induct ~> foo.induct
huffman@36828
  2092
huffman@37087
  2093
* The "fixrec_simp" attribute has been removed.  The "fixrec_simp"
huffman@37087
  2094
method and internal fixrec proofs now use the default simpset instead.
huffman@37087
  2095
INCOMPATIBILITY.
huffman@37087
  2096
huffman@36828
  2097
* The "contlub" predicate has been removed.  Proof scripts should use
huffman@36828
  2098
lemma contI2 in place of monocontlub2cont, INCOMPATIBILITY.
huffman@36828
  2099
huffman@36828
  2100
* The "admw" predicate has been removed, INCOMPATIBILITY.
huffman@36828
  2101
huffman@36828
  2102
* The constants cpair, cfst, and csnd have been removed in favor of
huffman@36828
  2103
Pair, fst, and snd from Isabelle/HOL, INCOMPATIBILITY.
huffman@36828
  2104
huffman@36828
  2105
haftmann@33993
  2106
*** ML ***
haftmann@33993
  2107
wenzelm@37351
  2108
* Antiquotations for basic formal entities:
wenzelm@37351
  2109
wenzelm@37351
  2110
    @{class NAME}         -- type class
wenzelm@37351
  2111
    @{class_syntax NAME}  -- syntax representation of the above
wenzelm@37351
  2112
wenzelm@37351
  2113
    @{type_name NAME}     -- logical type
wenzelm@37351
  2114
    @{type_abbrev NAME}   -- type abbreviation
wenzelm@37351
  2115
    @{nonterminal NAME}   -- type of concrete syntactic category
wenzelm@37351
  2116
    @{type_syntax NAME}   -- syntax representation of any of the above
wenzelm@37351
  2117
wenzelm@37351
  2118
    @{const_name NAME}    -- logical constant (INCOMPATIBILITY)
wenzelm@37351
  2119
    @{const_abbrev NAME}  -- abbreviated constant
wenzelm@37351
  2120
    @{const_syntax NAME}  -- syntax representation of any of the above
wenzelm@37351
  2121
wenzelm@37351
  2122
* Antiquotation @{syntax_const NAME} ensures that NAME refers to a raw
wenzelm@37351
  2123
syntax constant (cf. 'syntax' command).
wenzelm@37351
  2124
wenzelm@37351
  2125
* Antiquotation @{make_string} inlines a function to print arbitrary
wenzelm@37351
  2126
values similar to the ML toplevel.  The result is compiler dependent
wenzelm@37351
  2127
and may fall back on "?" in certain situations.
wenzelm@37351
  2128
wenzelm@37351
  2129
* Diagnostic commands 'ML_val' and 'ML_command' may refer to
wenzelm@37351
  2130
antiquotations @{Isar.state} and @{Isar.goal}.  This replaces impure
wenzelm@37351
  2131
Isar.state() and Isar.goal(), which belong to the old TTY loop and do
wenzelm@37351
  2132
not work with the asynchronous Isar document model.
wenzelm@37351
  2133
wenzelm@37351
  2134
* Configuration options now admit dynamic default values, depending on
wenzelm@37351
  2135
the context or even global references.
wenzelm@37351
  2136
wenzelm@37351
  2137
* SHA1.digest digests strings according to SHA-1 (see RFC 3174).  It
wenzelm@37351
  2138
uses an efficient external library if available (for Poly/ML).
wenzelm@37351
  2139
wenzelm@37144
  2140
* Renamed some important ML structures, while keeping the old names
wenzelm@37144
  2141
for some time as aliases within the structure Legacy:
wenzelm@37144
  2142
wenzelm@37144
  2143
  OuterKeyword  ~>  Keyword
wenzelm@37144
  2144
  OuterLex      ~>  Token
wenzelm@37144
  2145
  OuterParse    ~>  Parse
wenzelm@37144
  2146
  OuterSyntax   ~>  Outer_Syntax
wenzelm@37216
  2147
  PrintMode     ~>  Print_Mode
wenzelm@37144
  2148
  SpecParse     ~>  Parse_Spec
wenzelm@37216
  2149
  ThyInfo       ~>  Thy_Info
wenzelm@37216
  2150
  ThyLoad       ~>  Thy_Load
wenzelm@37216
  2151
  ThyOutput     ~>  Thy_Output
wenzelm@37145
  2152
  TypeInfer     ~>  Type_Infer
wenzelm@37144
  2153
wenzelm@37144
  2154
Note that "open Legacy" simplifies porting of sources, but forgetting
wenzelm@37144
  2155
to remove it again will complicate porting again in the future.
wenzelm@37144
  2156
wenzelm@37144
  2157
* Most operations that refer to a global context are named
wenzelm@37144
  2158
accordingly, e.g. Simplifier.global_context or
wenzelm@37144
  2159
ProofContext.init_global.  There are some situations where a global
wenzelm@37144
  2160
context actually works, but under normal circumstances one needs to
wenzelm@37144
  2161
pass the proper local context through the code!
wenzelm@37144
  2162
wenzelm@37144
  2163
* Discontinued old TheoryDataFun with its copy/init operation -- data
wenzelm@37144
  2164
needs to be pure.  Functor Theory_Data_PP retains the traditional
wenzelm@37144
  2165
Pretty.pp argument to merge, which is absent in the standard
wenzelm@37144
  2166
Theory_Data version.
wenzelm@36429
  2167
wenzelm@37144
  2168
* Sorts.certify_sort and derived "cert" operations for types and terms
wenzelm@37144
  2169
no longer minimize sorts.  Thus certification at the boundary of the
wenzelm@37144
  2170
inference kernel becomes invariant under addition of class relations,
wenzelm@37144
  2171
which is an important monotonicity principle.  Sorts are now minimized
wenzelm@37144
  2172
in the syntax layer only, at the boundary between the end-user and the
wenzelm@37144
  2173
system.  Subtle INCOMPATIBILITY, may have to use Sign.minimize_sort
wenzelm@37144
  2174
explicitly in rare situations.
wenzelm@37144
  2175
wenzelm@35021
  2176
* Renamed old-style Drule.standard to Drule.export_without_context, to
wenzelm@35021
  2177
emphasize that this is in no way a standard operation.
wenzelm@35021
  2178
INCOMPATIBILITY.
wenzelm@35021
  2179
wenzelm@34076
  2180
* Subgoal.FOCUS (and variants): resulting goal state is normalized as
wenzelm@34076
  2181
usual for resolution.  Rare INCOMPATIBILITY.
wenzelm@34076
  2182
wenzelm@35845
  2183
* Renamed varify/unvarify operations to varify_global/unvarify_global
wenzelm@35845
  2184
to emphasize that these only work in a global situation (which is
wenzelm@35845
  2185
quite rare).
wenzelm@35845
  2186
wenzelm@37144
  2187
* Curried take and drop in library.ML; negative length is interpreted
wenzelm@37144
  2188
as infinity (as in chop).  Subtle INCOMPATIBILITY.
wenzelm@36961
  2189
wenzelm@37351
  2190
* Proof terms: type substitutions on proof constants now use canonical
wenzelm@37351
  2191
order of type variables.  INCOMPATIBILITY for tools working with proof
wenzelm@37351
  2192
terms.
wenzelm@37351
  2193
wenzelm@37351
  2194
* Raw axioms/defs may no longer carry sort constraints, and raw defs
wenzelm@37351
  2195
may no longer carry premises.  User-level specifications are
wenzelm@37351
  2196
transformed accordingly by Thm.add_axiom/add_def.
wenzelm@37351
  2197
haftmann@33993
  2198
wenzelm@34238
  2199
*** System ***
wenzelm@34238
  2200
wenzelm@34238
  2201
* Discontinued special HOL_USEDIR_OPTIONS for the main HOL image;
wenzelm@34238
  2202
ISABELLE_USEDIR_OPTIONS applies uniformly to all sessions.  Note that
wenzelm@34238
  2203
proof terms are enabled unconditionally in the new HOL-Proofs image.
wenzelm@34238
  2204
wenzelm@34255
  2205
* Discontinued old ISABELLE and ISATOOL environment settings (legacy
wenzelm@34255
  2206
feature since Isabelle2009).  Use ISABELLE_PROCESS and ISABELLE_TOOL,
wenzelm@34255
  2207
respectively.
wenzelm@34255
  2208
wenzelm@36201
  2209
* Old lib/scripts/polyml-platform is superseded by the
wenzelm@36201
  2210
ISABELLE_PLATFORM setting variable, which defaults to the 32 bit
wenzelm@36201
  2211
variant, even on a 64 bit machine.  The following example setting
wenzelm@36201
  2212
prefers 64 bit if available:
wenzelm@36201
  2213
wenzelm@36201
  2214
  ML_PLATFORM="${ISABELLE_PLATFORM64:-$ISABELLE_PLATFORM}"
wenzelm@36201
  2215
wenzelm@37218
  2216
* The preliminary Isabelle/jEdit application demonstrates the emerging
wenzelm@37218
  2217
Isabelle/Scala layer for advanced prover interaction and integration.
wenzelm@37218
  2218
See src/Tools/jEdit or "isabelle jedit" provided by the properly built
wenzelm@37218
  2219
component.
wenzelm@37218
  2220
wenzelm@37375
  2221
* "IsabelleText" is a Unicode font derived from Bitstream Vera Mono
wenzelm@37375
  2222
and Bluesky TeX fonts.  It provides the usual Isabelle symbols,
wenzelm@37375
  2223
similar to the default assignment of the document preparation system
wenzelm@37375
  2224
(cf. isabellesym.sty).  The Isabelle/Scala class Isabelle_System
wenzelm@37375
  2225
provides some operations for direct access to the font without asking
wenzelm@37375
  2226
the user for manual installation.
wenzelm@37375
  2227
wenzelm@34238
  2228
haftmann@33993
  2229
wenzelm@33842
  2230
New in Isabelle2009-1 (December 2009)
wenzelm@33842
  2231
-------------------------------------
wenzelm@30904
  2232
wenzelm@31547
  2233
*** General ***
wenzelm@31547
  2234
wenzelm@31547
  2235
* Discontinued old form of "escaped symbols" such as \\<forall>.  Only
wenzelm@31547
  2236
one backslash should be used, even in ML sources.
wenzelm@31547
  2237
wenzelm@31547
  2238
haftmann@30951
  2239
*** Pure ***
haftmann@30951
  2240
ballarin@32846
  2241
* Locale interpretation propagates mixins along the locale hierarchy.
ballarin@32846
  2242
The currently only available mixins are the equations used to map
ballarin@32846
  2243
local definitions to terms of the target domain of an interpretation.
ballarin@32846
  2244
wenzelm@33842
  2245
* Reactivated diagnostic command 'print_interps'.  Use "print_interps
wenzelm@33842
  2246
loc" to print all interpretations of locale "loc" in the theory.
wenzelm@33842
  2247
Interpretations in proofs are not shown.
ballarin@32846
  2248
ballarin@32983
  2249
* Thoroughly revised locales tutorial.  New section on conditional
ballarin@32983
  2250
interpretation.
ballarin@32983
  2251
wenzelm@33843
  2252
* On instantiation of classes, remaining undefined class parameters
wenzelm@33843
  2253
are formally declared.  INCOMPATIBILITY.
wenzelm@33843
  2254
haftmann@30951
  2255
wenzelm@33842
  2256
*** Document preparation ***
wenzelm@33842
  2257
wenzelm@33842
  2258
* New generalized style concept for printing terms: @{foo (style) ...}
wenzelm@33842
  2259
instead of @{foo_style style ...}  (old form is still retained for
wenzelm@33842
  2260
backward compatibility).  Styles can be also applied for
wenzelm@33842
  2261
antiquotations prop, term_type and typeof.
haftmann@32891
  2262
haftmann@32891
  2263
haftmann@30930
  2264
*** HOL ***
haftmann@30930
  2265
wenzelm@33842
  2266
* New proof method "smt" for a combination of first-order logic with
wenzelm@33842
  2267
equality, linear and nonlinear (natural/integer/real) arithmetic, and
wenzelm@33842
  2268
fixed-size bitvectors; there is also basic support for higher-order
wenzelm@33842
  2269
features (esp. lambda abstractions).  It is an incomplete decision
wenzelm@33842
  2270
procedure based on external SMT solvers using the oracle mechanism;
wenzelm@33842
  2271
for the SMT solver Z3, this method is proof-producing.  Certificates
wenzelm@33842
  2272
are provided to avoid calling the external solvers solely for
wenzelm@33842
  2273
re-checking proofs.  Due to a remote SMT service there is no need for
wenzelm@33842
  2274
installing SMT solvers locally.  See src/HOL/SMT.
wenzelm@33842
  2275
wenzelm@33842
  2276
* New commands to load and prove verification conditions generated by
wenzelm@33842
  2277
the Boogie program verifier or derived systems (e.g. the Verifying C
wenzelm@33842
  2278
Compiler (VCC) or Spec#).  See src/HOL/Boogie.
wenzelm@33842
  2279
wenzelm@33842
  2280
* New counterexample generator tool 'nitpick' based on the Kodkod
wenzelm@33842
  2281
relational model finder.  See src/HOL/Tools/Nitpick and
wenzelm@33842
  2282
src/HOL/Nitpick_Examples.
wenzelm@33842
  2283
haftmann@33860
  2284
* New commands 'code_pred' and 'values' to invoke the predicate
haftmann@33860
  2285
compiler and to enumerate values of inductive predicates.
haftmann@33860
  2286
haftmann@33860
  2287
* A tabled implementation of the reflexive transitive closure.
haftmann@33860
  2288
haftmann@33860
  2289
* New implementation of quickcheck uses generic code generator;
haftmann@33860
  2290
default generators are provided for all suitable HOL types, records
haftmann@33860
  2291
and datatypes.  Old quickcheck can be re-activated importing theory
haftmann@33860
  2292
Library/SML_Quickcheck.
haftmann@33860
  2293
wenzelm@33843
  2294
* New testing tool Mirabelle for automated proof tools.  Applies
wenzelm@33843
  2295
several tools and tactics like sledgehammer, metis, or quickcheck, to
wenzelm@33843
  2296
every proof step in a theory.  To be used in batch mode via the
wenzelm@33843
  2297
"mirabelle" utility.
wenzelm@33843
  2298
wenzelm@33843
  2299
* New proof method "sos" (sum of squares) for nonlinear real
wenzelm@33843
  2300
arithmetic (originally due to John Harison). It requires theory
wenzelm@33843
  2301
Library/Sum_Of_Squares.  It is not a complete decision procedure but
wenzelm@33843
  2302
works well in practice on quantifier-free real arithmetic with +, -,
wenzelm@33843
  2303
*, ^, =, <= and <, i.e. boolean combinations of equalities and
wenzelm@33843
  2304
inequalities between polynomials.  It makes use of external
wenzelm@33843
  2305
semidefinite programming solvers.  Method "sos" generates a
wenzelm@33843
  2306
certificate that can be pasted into the proof thus avoiding the need
wenzelm@33843
  2307
to call an external tool every time the proof is checked.  See
wenzelm@33843
  2308
src/HOL/Library/Sum_Of_Squares.
wenzelm@33843
  2309
wenzelm@33843
  2310
* New method "linarith" invokes existing linear arithmetic decision
wenzelm@33843
  2311
procedure only.
wenzelm@33843
  2312
wenzelm@33843
  2313
* New command 'atp_minimal' reduces result produced by Sledgehammer.
wenzelm@33843
  2314
wenzelm@33843
  2315
* New Sledgehammer option "Full Types" in Proof General settings menu.
wenzelm@33843
  2316
Causes full type information to be output to the ATPs.  This slows
wenzelm@33843
  2317
ATPs down considerably but eliminates a source of unsound "proofs"
wenzelm@33843
  2318
that fail later.
wenzelm@33843
  2319
wenzelm@33843
  2320
* New method "metisFT": A version of metis that uses full type
wenzelm@33843
  2321
information in order to avoid failures of proof reconstruction.
wenzelm@33843
  2322
wenzelm@33843
  2323
* New evaluator "approximate" approximates an real valued term using
wenzelm@33843
  2324
the same method as the approximation method.
wenzelm@33843
  2325
wenzelm@33843
  2326
* Method "approximate" now supports arithmetic expressions as
wenzelm@33843
  2327
boundaries of intervals and implements interval splitting and Taylor
wenzelm@33843
  2328
series expansion.
wenzelm@33843
  2329
wenzelm@33843
  2330
* ML antiquotation @{code_datatype} inserts definition of a datatype
wenzelm@33843
  2331
generated by the code generator; e.g. see src/HOL/Predicate.thy.
wenzelm@33843
  2332
haftmann@33860
  2333
* New theory SupInf of the supremum and infimum operators for sets of
haftmann@33860
  2334
reals.
haftmann@33860
  2335
haftmann@33860
  2336
* New theory Probability, which contains a development of measure
haftmann@33860
  2337
theory, eventually leading to Lebesgue integration and probability.
haftmann@33860
  2338
haftmann@33860
  2339
* Extended Multivariate Analysis to include derivation and Brouwer's
haftmann@33860
  2340
fixpoint theorem.
wenzelm@33843
  2341
wenzelm@33842
  2342
* Reorganization of number theory, INCOMPATIBILITY:
wenzelm@33873
  2343
  - new number theory development for nat and int, in theories Divides
wenzelm@33873
  2344
    and GCD as well as in new session Number_Theory
wenzelm@33873
  2345
  - some constants and facts now suffixed with _nat and _int
wenzelm@33873
  2346
    accordingly
wenzelm@33873
  2347
  - former session NumberTheory now named Old_Number_Theory, including
wenzelm@33873
  2348
    theories Legacy_GCD and Primes (prefer Number_Theory if possible)
wenzelm@33842
  2349
  - moved theory Pocklington from src/HOL/Library to
wenzelm@33842
  2350
    src/HOL/Old_Number_Theory
haftmann@32479
  2351
wenzelm@33873
  2352
* Theory GCD includes functions Gcd/GCD and Lcm/LCM for the gcd and
wenzelm@33873
  2353
lcm of finite and infinite sets. It is shown that they form a complete
haftmann@32600
  2354
lattice.
haftmann@32600
  2355
haftmann@32600
  2356
* Class semiring_div requires superclass no_zero_divisors and proof of
haftmann@32600
  2357
div_mult_mult1; theorems div_mult_mult1, div_mult_mult2,
haftmann@32600
  2358
div_mult_mult1_if, div_mult_mult1 and div_mult_mult2 have been
haftmann@32600
  2359
generalized to class semiring_div, subsuming former theorems
haftmann@32600
  2360
zdiv_zmult_zmult1, zdiv_zmult_zmult1_if, zdiv_zmult_zmult1 and
haftmann@32600
  2361
zdiv_zmult_zmult2.  div_mult_mult1 is now [simp] by default.
haftmann@32600
  2362
INCOMPATIBILITY.
haftmann@32600
  2363
haftmann@32588
  2364
* Refinements to lattice classes and sets:
haftmann@32064
  2365
  - less default intro/elim rules in locale variant, more default
haftmann@32064
  2366
    intro/elim rules in class variant: more uniformity
wenzelm@33842
  2367
  - lemma ge_sup_conv renamed to le_sup_iff, in accordance with
wenzelm@33842
  2368
    le_inf_iff
wenzelm@33842
  2369
  - dropped lemma alias inf_ACI for inf_aci (same for sup_ACI and
wenzelm@33842
  2370
    sup_aci)
haftmann@32064
  2371
  - renamed ACI to inf_sup_aci
haftmann@32600
  2372
  - new class "boolean_algebra"
wenzelm@33842
  2373
  - class "complete_lattice" moved to separate theory
haftmann@33860
  2374
    "Complete_Lattice"; corresponding constants (and abbreviations)
wenzelm@33842
  2375
    renamed and with authentic syntax:
haftmann@33860
  2376
    Set.Inf ~>    Complete_Lattice.Inf
haftmann@33860
  2377
    Set.Sup ~>    Complete_Lattice.Sup
haftmann@33860
  2378
    Set.INFI ~>   Complete_Lattice.INFI
haftmann@33860
  2379
    Set.SUPR ~>   Complete_Lattice.SUPR
haftmann@33860
  2380
    Set.Inter ~>  Complete_Lattice.Inter
haftmann@33860
  2381
    Set.Union ~>  Complete_Lattice.Union
haftmann@33860
  2382
    Set.INTER ~>  Complete_Lattice.INTER
haftmann@33860
  2383
    Set.UNION ~>  Complete_Lattice.UNION
haftmann@32600
  2384
  - authentic syntax for
haftmann@32600
  2385
    Set.Pow
haftmann@32600
  2386
    Set.image
haftmann@32588
  2387
  - mere abbreviations:
haftmann@32588
  2388
    Set.empty               (for bot)
haftmann@32588
  2389
    Set.UNIV                (for top)
haftmann@33860
  2390
    Set.inter               (for inf, formerly Set.Int)
haftmann@33860
  2391
    Set.union               (for sup, formerly Set.Un)
haftmann@32588
  2392
    Complete_Lattice.Inter  (for Inf)
haftmann@32588
  2393
    Complete_Lattice.Union  (for Sup)
haftmann@32606
  2394
    Complete_Lattice.INTER  (for INFI)
haftmann@32606
  2395
    Complete_Lattice.UNION  (for SUPR)
haftmann@32600
  2396
  - object-logic definitions as far as appropriate
haftmann@32217
  2397
haftmann@32691
  2398
INCOMPATIBILITY.  Care is required when theorems Int_subset_iff or
wenzelm@33842
  2399
Un_subset_iff are explicitly deleted as default simp rules; then also
wenzelm@33842
  2400
their lattice counterparts le_inf_iff and le_sup_iff have to be
haftmann@32691
  2401
deleted to achieve the desired effect.
haftmann@32064
  2402
wenzelm@33842
  2403
* Rules inf_absorb1, inf_absorb2, sup_absorb1, sup_absorb2 are no simp
wenzelm@33842
  2404
rules by default any longer; the same applies to min_max.inf_absorb1
wenzelm@33842
  2405
etc.  INCOMPATIBILITY.
wenzelm@33842
  2406
wenzelm@33842
  2407
* Rules sup_Int_eq and sup_Un_eq are no longer declared as
wenzelm@33842
  2408
pred_set_conv by default.  INCOMPATIBILITY.
wenzelm@33842
  2409
wenzelm@33842
  2410
* Power operations on relations and functions are now one dedicated
haftmann@32706
  2411
constant "compow" with infix syntax "^^".  Power operation on
wenzelm@31547
  2412
multiplicative monoids retains syntax "^" and is now defined generic
wenzelm@31547
  2413
in class power.  INCOMPATIBILITY.
wenzelm@31547
  2414
wenzelm@33842
  2415
* Relation composition "R O S" now has a more standard argument order:
wenzelm@33842
  2416
"R O S = {(x, z). EX y. (x, y) : R & (y, z) : S}".  INCOMPATIBILITY,
wenzelm@33842
  2417
rewrite propositions with "S O R" --> "R O S". Proofs may occasionally
wenzelm@33842
  2418
break, since the O_assoc rule was not rewritten like this.  Fix using
wenzelm@33842
  2419
O_assoc[symmetric].  The same applies to the curried version "R OO S".
wenzelm@32427
  2420
nipkow@33057
  2421
* Function "Inv" is renamed to "inv_into" and function "inv" is now an
wenzelm@33842
  2422
abbreviation for "inv_into UNIV".  Lemmas are renamed accordingly.
nipkow@32988
  2423
INCOMPATIBILITY.
nipkow@32988
  2424
haftmann@33860
  2425
* Most rules produced by inductive and datatype package have mandatory
haftmann@33860
  2426
prefixes.  INCOMPATIBILITY.
nipkow@31790
  2427
wenzelm@33842
  2428
* Changed "DERIV_intros" to a dynamic fact, which can be augmented by
wenzelm@33842
  2429
the attribute of the same name.  Each of the theorems in the list
wenzelm@33842
  2430
DERIV_intros assumes composition with an additional function and
wenzelm@33842
  2431
matches a variable to the derivative, which has to be solved by the
wenzelm@33842
  2432
Simplifier.  Hence (auto intro!: DERIV_intros) computes the derivative
wenzelm@33873
  2433
of most elementary terms.  Former Maclauren.DERIV_tac and
wenzelm@33873
  2434
Maclauren.deriv_tac should be replaced by (auto intro!: DERIV_intros).
wenzelm@33873
  2435
INCOMPATIBILITY.
haftmann@33860
  2436
haftmann@33860
  2437
* Code generator attributes follow the usual underscore convention:
haftmann@33860
  2438
    code_unfold     replaces    code unfold
haftmann@33860
  2439
    code_post       replaces    code post
haftmann@33860
  2440
    etc.
haftmann@33860
  2441
  INCOMPATIBILITY.
wenzelm@31900
  2442
krauss@33471
  2443
* Renamed methods:
krauss@33471
  2444
    sizechange -> size_change
krauss@33471
  2445
    induct_scheme -> induction_schema
haftmann@33860
  2446
  INCOMPATIBILITY.
nipkow@33673
  2447
wenzelm@33843
  2448
* Discontinued abbreviation "arbitrary" of constant "undefined".
wenzelm@33843
  2449
INCOMPATIBILITY, use "undefined" directly.
wenzelm@33843
  2450
haftmann@33860
  2451
* Renamed theorems:
haftmann@33860
  2452
    Suc_eq_add_numeral_1 -> Suc_eq_plus1
haftmann@33860
  2453
    Suc_eq_add_numeral_1_left -> Suc_eq_plus1_left
haftmann@33860
  2454
    Suc_plus1 -> Suc_eq_plus1
haftmann@33860
  2455
    *anti_sym -> *antisym*
haftmann@33860
  2456
    vector_less_eq_def -> vector_le_def
haftmann@33860
  2457
  INCOMPATIBILITY.
haftmann@33860
  2458
haftmann@33860
  2459
* Added theorem List.map_map as [simp].  Removed List.map_compose.
haftmann@33860
  2460
INCOMPATIBILITY.
haftmann@33860
  2461
haftmann@33860
  2462
* Removed predicate "M hassize n" (<--> card M = n & finite M).
haftmann@33860
  2463
INCOMPATIBILITY.
haftmann@33860
  2464
hoelzl@31812
  2465
huffman@33825
  2466
*** HOLCF ***
huffman@33825
  2467
wenzelm@33842
  2468
* Theory Representable defines a class "rep" of domains that are
wenzelm@33842
  2469
representable (via an ep-pair) in the universal domain type "udom".
huffman@33825
  2470
Instances are provided for all type constructors defined in HOLCF.
huffman@33825
  2471
huffman@33825
  2472
* The 'new_domain' command is a purely definitional version of the
huffman@33825
  2473
domain package, for representable domains.  Syntax is identical to the
huffman@33825
  2474
old domain package.  The 'new_domain' package also supports indirect
huffman@33825
  2475
recursion using previously-defined type constructors.  See
wenzelm@33842
  2476
src/HOLCF/ex/New_Domain.thy for examples.
wenzelm@33842
  2477
wenzelm@33842
  2478
* Method "fixrec_simp" unfolds one step of a fixrec-defined constant
huffman@33825
  2479
on the left-hand side of an equation, and then performs
huffman@33825
  2480
simplification.  Rewriting is done using rules declared with the
wenzelm@33842
  2481
"fixrec_simp" attribute.  The "fixrec_simp" method is intended as a
wenzelm@33842
  2482
replacement for "fixpat"; see src/HOLCF/ex/Fixrec_ex.thy for examples.
huffman@33825
  2483
huffman@33825
  2484
* The pattern-match compiler in 'fixrec' can now handle constructors
huffman@33825
  2485
with HOL function types.  Pattern-match combinators for the Pair
huffman@33825
  2486
constructor are pre-configured.
huffman@33825
  2487
huffman@33825
  2488
* The 'fixrec' package now produces better fixed-point induction rules
huffman@33825
  2489
for mutually-recursive definitions:  Induction rules have conclusions
huffman@33825
  2490
of the form "P foo bar" instead of "P <foo, bar>".
huffman@33825
  2491
huffman@33825
  2492
* The constant "sq_le" (with infix syntax "<<" or "\<sqsubseteq>") has
huffman@33825
  2493
been renamed to "below".  The name "below" now replaces "less" in many
wenzelm@33842
  2494
theorem names.  (Legacy theorem names using "less" are still supported
wenzelm@33842
  2495
as well.)
huffman@33825
  2496
huffman@33825
  2497
* The 'fixrec' package now supports "bottom patterns".  Bottom
huffman@33825
  2498
patterns can be used to generate strictness rules, or to make
huffman@33825
  2499
functions more strict (much like the bang-patterns supported by the
wenzelm@33873
  2500
Glasgow Haskell Compiler).  See src/HOLCF/ex/Fixrec_ex.thy for
wenzelm@33873
  2501
examples.
huffman@33825
  2502
huffman@33825
  2503
wenzelm@31304
  2504
*** ML ***
wenzelm@31304
  2505
wenzelm@33843
  2506
* Support for Poly/ML 5.3.0, with improved reporting of compiler
wenzelm@33843
  2507
errors and run-time exceptions, including detailed source positions.
wenzelm@33843
  2508
wenzelm@33843
  2509
* Structure Name_Space (formerly NameSpace) now manages uniquely
wenzelm@33843
  2510
identified entries, with some additional information such as source
wenzelm@33843
  2511
position, logical grouping etc.
wenzelm@33843
  2512
wenzelm@33524
  2513
* Theory and context data is now introduced by the simplified and
wenzelm@33524
  2514
modernized functors Theory_Data, Proof_Data, Generic_Data.  Data needs
wenzelm@33524
  2515
to be pure, but the old TheoryDataFun for mutable data (with explicit
wenzelm@33524
  2516
copy operation) is still available for some time.
wenzelm@33524
  2517
wenzelm@32742
  2518
* Structure Synchronized (cf. src/Pure/Concurrent/synchronized.ML)
wenzelm@32742
  2519
provides a high-level programming interface to synchronized state
wenzelm@32742
  2520
variables with atomic update.  This works via pure function
wenzelm@32742
  2521
application within a critical section -- its runtime should be as
wenzelm@32742
  2522
short as possible; beware of deadlocks if critical code is nested,
wenzelm@32742
  2523
either directly or indirectly via other synchronized variables!
wenzelm@32742
  2524
wenzelm@32742
  2525
* Structure Unsynchronized (cf. src/Pure/ML-Systems/unsynchronized.ML)
wenzelm@32742
  2526
wraps raw ML references, explicitly indicating their non-thread-safe
wenzelm@32742
  2527
behaviour.  The Isar toplevel keeps this structure open, to
wenzelm@32742
  2528
accommodate Proof General as well as quick and dirty interactive
wenzelm@32742
  2529
experiments with references.
wenzelm@32742
  2530
wenzelm@32365
  2531
* PARALLEL_CHOICE and PARALLEL_GOALS provide basic support for
wenzelm@32365
  2532
parallel tactical reasoning.
wenzelm@32365
  2533
wenzelm@32427
  2534
* Tacticals Subgoal.FOCUS, Subgoal.FOCUS_PREMS, Subgoal.FOCUS_PARAMS
wenzelm@32427
  2535
are similar to SUBPROOF, but are slightly more flexible: only the
wenzelm@32427
  2536
specified parts of the subgoal are imported into the context, and the
wenzelm@32427
  2537
body tactic may introduce new subgoals and schematic variables.
wenzelm@32427
  2538
wenzelm@32427
  2539
* Old tactical METAHYPS, which does not observe the proof context, has
wenzelm@32427
  2540
been renamed to Old_Goals.METAHYPS and awaits deletion.  Use SUBPROOF
wenzelm@32427
  2541
or Subgoal.FOCUS etc.
wenzelm@32216
  2542
wenzelm@31971
  2543
* Renamed functor TableFun to Table, and GraphFun to Graph.  (Since
wenzelm@31971
  2544
functors have their own ML name space there is no point to mark them
wenzelm@31971
  2545
separately.)  Minor INCOMPATIBILITY.
wenzelm@31971
  2546
wenzelm@31901
  2547
* Renamed NamedThmsFun to Named_Thms.  INCOMPATIBILITY.
wenzelm@31901
  2548
wenzelm@33842
  2549
* Renamed several structures FooBar to Foo_Bar.  Occasional,
wenzelm@33842
  2550
INCOMPATIBILITY.
wenzelm@33842
  2551
wenzelm@33843
  2552
* Operations of structure Skip_Proof no longer require quick_and_dirty
wenzelm@33843
  2553
mode, which avoids critical setmp.
wenzelm@33843
  2554
wenzelm@31306
  2555
* Eliminated old Attrib.add_attributes, Method.add_methods and related
wenzelm@33842
  2556
combinators for "args".  INCOMPATIBILITY, need to use simplified
wenzelm@31306
  2557
Attrib/Method.setup introduced in Isabelle2009.
wenzelm@31304
  2558
wenzelm@32151
  2559
* Proper context for simpset_of, claset_of, clasimpset_of.  May fall
wenzelm@32151
  2560
back on global_simpset_of, global_claset_of, global_clasimpset_of as
wenzelm@32151
  2561
last resort.  INCOMPATIBILITY.
wenzelm@32151
  2562
wenzelm@32092
  2563
* Display.pretty_thm now requires a proper context (cf. former
wenzelm@32092
  2564
ProofContext.pretty_thm).  May fall back on Display.pretty_thm_global
wenzelm@32092
  2565
or even Display.pretty_thm_without_context as last resort.
wenzelm@32092
  2566
INCOMPATIBILITY.
wenzelm@32092
  2567
wenzelm@32433
  2568
* Discontinued Display.pretty_ctyp/cterm etc.  INCOMPATIBILITY, use
wenzelm@32433
  2569
Syntax.pretty_typ/term directly, preferably with proper context
wenzelm@32433
  2570
instead of global theory.
wenzelm@32433
  2571
wenzelm@31304
  2572
wenzelm@31308
  2573
*** System ***
wenzelm@31308
  2574
wenzelm@33842
  2575
* Further fine tuning of parallel proof checking, scales up to 8 cores
wenzelm@33842
  2576
(max. speedup factor 5.0).  See also Goal.parallel_proofs in ML and
wenzelm@33842
  2577
usedir option -q.
wenzelm@33842
  2578
wenzelm@32326
  2579
* Support for additional "Isabelle components" via etc/components, see
wenzelm@32326
  2580
also the system manual.
wenzelm@32326
  2581
wenzelm@32326
  2582
* The isabelle makeall tool now operates on all components with
wenzelm@32326
  2583
IsaMakefile, not just hardwired "logics".
wenzelm@32326
  2584
wenzelm@33842
  2585
* Removed "compress" option from isabelle-process and isabelle usedir;
wenzelm@33842
  2586
this is always enabled.
kleing@33818
  2587
wenzelm@31308
  2588
* Discontinued support for Poly/ML 4.x versions.
wenzelm@31308
  2589
wenzelm@33842
  2590
* Isabelle tool "wwwfind" provides web interface for 'find_theorems'
wenzelm@33842
  2591
on a given logic image.  This requires the lighttpd webserver and is
wenzelm@33842
  2592
currently supported on Linux only.
wenzelm@32061
  2593
wenzelm@31308
  2594
wenzelm@31304
  2595
wenzelm@30845
  2596
New in Isabelle2009 (April 2009)
wenzelm@30845
  2597
--------------------------------
haftmann@27104
  2598
wenzelm@27599
  2599
*** General ***
wenzelm@27599
  2600
wenzelm@28504
  2601
* Simplified main Isabelle executables, with less surprises on
wenzelm@28504
  2602
case-insensitive file-systems (such as Mac OS).
wenzelm@28504
  2603
wenzelm@28504
  2604
  - The main Isabelle tool wrapper is now called "isabelle" instead of
wenzelm@28504
  2605
    "isatool."
wenzelm@28504
  2606
wenzelm@28504
  2607
  - The former "isabelle" alias for "isabelle-process" has been
wenzelm@28504
  2608
    removed (should rarely occur to regular users).
wenzelm@28504
  2609
wenzelm@28915
  2610
  - The former "isabelle-interface" and its alias "Isabelle" have been
wenzelm@28915
  2611
    removed (interfaces are now regular Isabelle tools).
wenzelm@28504
  2612
wenzelm@28504
  2613
Within scripts and make files, the Isabelle environment variables
wenzelm@28504
  2614
ISABELLE_TOOL and ISABELLE_PROCESS replace old ISATOOL and ISABELLE,
wenzelm@28504
  2615
respectively.  (The latter are still available as legacy feature.)
wenzelm@28504
  2616
wenzelm@28915
  2617
The old isabelle-interface wrapper could react in confusing ways if
wenzelm@28915
  2618
the interface was uninstalled or changed otherwise.  Individual
wenzelm@28915
  2619
interface tool configuration is now more explicit, see also the
wenzelm@28915
  2620
Isabelle system manual.  In particular, Proof General is now available
wenzelm@28915
  2621
via "isabelle emacs".
wenzelm@28504
  2622
wenzelm@28504
  2623
INCOMPATIBILITY, need to adapt derivative scripts.  Users may need to
wenzelm@28504
  2624
purge installed copies of Isabelle executables and re-run "isabelle
wenzelm@28504
  2625
install -p ...", or use symlinks.
wenzelm@28504
  2626
wenzelm@28914
  2627
* The default for ISABELLE_HOME_USER is now ~/.isabelle instead of the
wenzelm@30845
  2628
old ~/isabelle, which was slightly non-standard and apt to cause
wenzelm@30845
  2629
surprises on case-insensitive file-systems (such as Mac OS).
wenzelm@28914
  2630
wenzelm@28914
  2631
INCOMPATIBILITY, need to move existing ~/isabelle/etc,
wenzelm@28914
  2632
~/isabelle/heaps, ~/isabelle/browser_info to the new place.  Special
wenzelm@28914
  2633
care is required when using older releases of Isabelle.  Note that
wenzelm@28914
  2634
ISABELLE_HOME_USER can be changed in Isabelle/etc/settings of any
wenzelm@30845
  2635
Isabelle distribution, in order to use the new ~/.isabelle uniformly.
wenzelm@28914
  2636
wenzelm@29161
  2637
* Proofs of fully specified statements are run in parallel on
wenzelm@30845
  2638
multi-core systems.  A speedup factor of 2.5 to 3.2 can be expected on
wenzelm@30845
  2639
a regular 4-core machine, if the initial heap space is made reasonably
wenzelm@30845
  2640
large (cf. Poly/ML option -H).  (Requires Poly/ML 5.2.1 or later.)
wenzelm@30845
  2641
wenzelm@30845
  2642
* The main reference manuals ("isar-ref", "implementation", and
wenzelm@30845
  2643
"system") have been updated and extended.  Formally checked references
wenzelm@30845
  2644
as hyperlinks are now available uniformly.
wenzelm@30845
  2645
wenzelm@30163
  2646
wenzelm@27599
  2647
*** Pure ***
wenzelm@27599
  2648
wenzelm@30845
  2649
* Complete re-implementation of locales.  INCOMPATIBILITY in several
wenzelm@30845
  2650
respects.  The most important changes are listed below.  See the
wenzelm@30845
  2651
Tutorial on Locales ("locales" manual) for details.
ballarin@29253
  2652
ballarin@29253
  2653
- In locale expressions, instantiation replaces renaming.  Parameters
ballarin@29253
  2654
must be declared in a for clause.  To aid compatibility with previous
ballarin@29253
  2655
parameter inheritance, in locale declarations, parameters that are not
ballarin@29253
  2656
'touched' (instantiation position "_" or omitted) are implicitly added
ballarin@29253
  2657
with their syntax at the beginning of the for clause.
ballarin@29253
  2658
ballarin@29253
  2659
- Syntax from abbreviations and definitions in locales is available in
ballarin@29253
  2660
locale expressions and context elements.  The latter is particularly
ballarin@29253
  2661
useful in locale declarations.
ballarin@29253
  2662
ballarin@29253
  2663
- More flexible mechanisms to qualify names generated by locale
ballarin@29253
  2664
expressions.  Qualifiers (prefixes) may be specified in locale
wenzelm@30728
  2665
expressions, and can be marked as mandatory (syntax: "name!:") or
wenzelm@30728
  2666
optional (syntax "name?:").  The default depends for plain "name:"
wenzelm@30728
  2667
depends on the situation where a locale expression is used: in
wenzelm@30728
  2668
commands 'locale' and 'sublocale' prefixes are optional, in
wenzelm@30845
  2669
'interpretation' and 'interpret' prefixes are mandatory.  The old
wenzelm@30728
  2670
implicit qualifiers derived from the parameter names of a locale are
wenzelm@30728
  2671
no longer generated.
wenzelm@30106
  2672
wenzelm@30845
  2673
- Command "sublocale l < e" replaces "interpretation l < e".  The
wenzelm@30106
  2674
instantiation clause in "interpretation" and "interpret" (square
wenzelm@30106
  2675
brackets) is no longer available.  Use locale expressions.
ballarin@29253
  2676
wenzelm@30845
  2677
- When converting proof scripts, mandatory qualifiers in
wenzelm@30728
  2678
'interpretation' and 'interpret' should be retained by default, even
wenzelm@30845
  2679
if this is an INCOMPATIBILITY compared to former behavior.  In the
wenzelm@30845
  2680
worst case, use the "name?:" form for non-mandatory ones.  Qualifiers