NEWS
author haftmann
Fri Jan 06 21:48:45 2012 +0100 (2012-01-06)
changeset 46145 0ec0af1c651d
parent 46141 ab21fc844ea2
child 46160 f363e5a2f8e8
permissions -rw-r--r--
consolidated various theorem names relating to Finite_Set.fold and List.fold combinators
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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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* Dropped attribute 'code_unfold_post' in favor of the its dual 'code_abbrev',
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which yields a common pattern in definitions like
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  definition [code_abbrev]: "f = t"
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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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* Consolidated various theorem names relating to Finite_Set.fold combinator:
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  inf_INFI_fold_inf ~> inf_INF_fold_inf
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  sup_SUPR_fold_sup ~> sup_SUP_fold_sup
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  INFI_fold_inf ~> INF_fold_inf
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  SUPR_fold_sup ~> SUP_fold_sup
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  union_set ~> union_set_fold
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  minus_set ~> minus_set_fold
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INCOMPATIBILITY.
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* Consolidated theorem names concerning fold combinators:
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  INFI_set_fold ~> INF_set_fold
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  SUPR_set_fold ~> SUP_set_fold
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  INF_code ~> INF_set_foldr
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  SUP_code ~> SUP_set_foldr
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  foldr.simps ~> foldr_Nil foldr_Cons (in point-free formulation)
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  foldl.simps ~> foldl_Nil foldl_Cons
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  foldr_fold_rev ~> foldr_def
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  foldl_fold ~> foldl_def
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INCOMPATIBILITY.
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* Dropped rarely useful theorems concerning fold combinators: foldl_apply,
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foldl_fun_comm, foldl_rev, fold_weak_invariant, rev_foldl_cons, fold_set_remdups,
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fold_set, fold_set1, concat_conv_foldl, foldl_weak_invariant, foldl_invariant,
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foldr_invariant, foldl_absorb0, foldl_foldr1_lemma, foldl_foldr1, listsum_conv_fold,
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listsum_foldl, sort_foldl_insort.  INCOMPATIBILITY.  Prefer "List.fold" with
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canonical argument order, or boil down "List.foldr" and "List.foldl" to "List.fold"
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by unfolding "foldr_def" and "foldl_def".  For the common phrases "%xs. List.foldr plus xs 0"
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and "List.foldl plus 0", prefer "List.listsum".
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* Concrete syntax for case expressions includes constraints for source
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positions, and thus produces Prover IDE markup for its bindings.
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INCOMPATIBILITY for old-style syntax translations that augment the
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pattern notation; e.g. see src/HOL/HOLCF/One.thy for translations of
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one_case.
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* Discontinued configuration option "syntax_positions": atomic terms
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in parse trees are always annotated by position constraints.
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* Finite_Set.fold now qualified.  INCOMPATIBILITY.
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* Renamed some facts on canonical fold on lists, in order to avoid problems
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with interpretation involving corresponding facts on foldl with the same base names:
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  fold_set_remdups ~> fold_set_fold_remdups
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  fold_set ~> fold_set_fold
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  fold1_set ~> fold1_set_fold
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INCOMPATIBILITY.
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* 'set' is now a proper type constructor.  Definitions mem_def and Collect_def
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have disappeared.  INCOMPATIBILITY.
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For developments keeping predicates and sets
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separate, it is often sufficient to rephrase sets S accidentally used as predicates by
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"%x. x : S" and predicates P accidentally used as sets by "{x. P x}".  Corresponding
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proofs in a first step should be pruned from any tinkering with former theorems mem_def
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and Collect_def.
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For developments which deliberately mixed predicates and sets, a planning step is
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necessary to determine what should become a predicate and what a set.  It can be helpful
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to carry out that step in Isabelle 2011-1 before jumping to the current release.
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* Theory HOL/Library/AList has been renamed to AList_Impl. INCOMPATIBILITY.
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* 'datatype' specifications allow explicit sort constraints.
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* Theory HOL/Library/Diagonalize has been removed. INCOMPATIBILITY, use
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theory HOL/Library/Nat_Bijection instead.
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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_sub_def ~> diff_minus
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  word_diff_minus ~> diff_minus
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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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  lenw1_zero_neq_one ~> zero_neq_one
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  word_number_of_eq ~> number_of_eq
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  word_of_int_add_hom ~> wi_hom_add
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  word_of_int_sub_hom ~> wi_hom_sub
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  word_of_int_mult_hom ~> wi_hom_mult
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  word_of_int_minus_hom ~> wi_hom_neg
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  word_of_int_succ_hom ~> wi_hom_succ
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  word_of_int_pred_hom ~> wi_hom_pred
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  word_of_int_0_hom ~> word_0_wi
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  word_of_int_1_hom ~> word_1_wi
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* Clarified attribute "mono_set": pure declaration 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 qualified.  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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* Theory Deriv: Renamed
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  DERIV_nonneg_imp_nonincreasing ~> DERIV_nonneg_imp_nondecreasing
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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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* Quickcheck:
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  - Quickcheck returns variable assignments as counterexamples, which
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    allows to reveal the underspecification of functions under test.
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    For example, refuting "hd xs = x", it presents the variable
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    assignment xs = [] and x = a1 as a counterexample, assuming that
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    any property is false whenever "hd []" occurs in it.
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    These counterexample are marked as potentially spurious, as
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    Quickcheck also returns "xs = []" as a counterexample to the
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    obvious theorem "hd xs = hd xs".
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    After finding a potentially spurious counterexample, Quickcheck
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    continues searching for genuine ones.
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    By default, Quickcheck shows potentially spurious and genuine
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    counterexamples. The option "genuine_only" sets quickcheck to
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    only show genuine counterexamples.
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  - The command 'quickcheck_generator' creates random and exhaustive
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    value generators for a given type and operations.
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    It generates values by using the operations as if they were
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    constructors of that type. 
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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).
wenzelm@44760
   333
wenzelm@44760
   334
See also ~~/src/Tools/jEdit/README.html for further information,
wenzelm@44760
   335
including some remaining limitations.
wenzelm@44760
   336
wenzelm@44800
   337
* Theory loader: source files are exclusively located via the master
wenzelm@44800
   338
directory of each theory node (where the .thy file itself resides).
wenzelm@44800
   339
The global load path (such as src/HOL/Library) has been discontinued.
wenzelm@44800
   340
Note that the path element ~~ may be used to reference theories in the
wenzelm@44800
   341
Isabelle home folder -- for instance, "~~/src/HOL/Library/FuncSet".
wenzelm@44800
   342
INCOMPATIBILITY.
wenzelm@44800
   343
wenzelm@41955
   344
* Theory loader: source files are identified by content via SHA1
wenzelm@41955
   345
digests.  Discontinued former path/modtime identification and optional
wenzelm@41955
   346
ISABELLE_FILE_IDENT plugin scripts.
wenzelm@41955
   347
wenzelm@41703
   348
* Parallelization of nested Isar proofs is subject to
wenzelm@41703
   349
Goal.parallel_proofs_threshold (default 100).  See also isabelle
wenzelm@41703
   350
usedir option -Q.
wenzelm@41703
   351
wenzelm@42669
   352
* Name space: former unsynchronized references are now proper
wenzelm@42669
   353
configuration options, with more conventional names:
wenzelm@42669
   354
wenzelm@42669
   355
  long_names   ~> names_long
wenzelm@42669
   356
  short_names  ~> names_short
wenzelm@42669
   357
  unique_names ~> names_unique
wenzelm@42669
   358
wenzelm@42669
   359
Minor INCOMPATIBILITY, need to declare options in context like this:
wenzelm@42669
   360
wenzelm@42669
   361
  declare [[names_unique = false]]
wenzelm@42358
   362
wenzelm@42502
   363
* Literal facts `prop` may contain dummy patterns, e.g. `_ = _`.  Note
wenzelm@42502
   364
that the result needs to be unique, which means fact specifications
wenzelm@42502
   365
may have to be refined after enriching a proof context.
wenzelm@42502
   366
wenzelm@44800
   367
* Attribute "case_names" has been refined: the assumptions in each case
wenzelm@44800
   368
can be named now by following the case name with [name1 name2 ...].
wenzelm@44800
   369
wenzelm@44968
   370
* Isabelle/Isar reference manual has been updated and extended:
wenzelm@44968
   371
  - "Synopsis" provides a catalog of main Isar language concepts.
wenzelm@44968
   372
  - Formal references in syntax diagrams, via @{rail} antiquotation.
wenzelm@44968
   373
  - Updated material from classic "ref" manual, notably about
wenzelm@44968
   374
    "Classical Reasoner".
wenzelm@42633
   375
wenzelm@41703
   376
blanchet@41727
   377
*** HOL ***
blanchet@41727
   378
wenzelm@44968
   379
* Class bot and top require underlying partial order rather than
wenzelm@44800
   380
preorder: uniqueness of bot and top is guaranteed.  INCOMPATIBILITY.
haftmann@43815
   381
haftmann@43940
   382
* Class complete_lattice: generalized a couple of lemmas from sets;
wenzelm@44800
   383
generalized theorems INF_cong and SUP_cong.  New type classes for
wenzelm@44800
   384
complete boolean algebras and complete linear orders.  Lemmas
wenzelm@44800
   385
Inf_less_iff, less_Sup_iff, INF_less_iff, less_SUP_iff now reside in
wenzelm@44800
   386
class complete_linorder.
wenzelm@44800
   387
wenzelm@44800
   388
Changed proposition of lemmas Inf_bool_def, Sup_bool_def, Inf_fun_def,
wenzelm@44800
   389
Sup_fun_def, Inf_apply, Sup_apply.
wenzelm@44800
   390
wenzelm@45088
   391
Removed redundant lemmas (the right hand side gives hints how to
wenzelm@45088
   392
replace them for (metis ...), or (simp only: ...) proofs):
hoelzl@45041
   393
hoelzl@45041
   394
  Inf_singleton ~> Inf_insert [where A="{}", unfolded Inf_empty inf_top_right]
hoelzl@45041
   395
  Sup_singleton ~> Sup_insert [where A="{}", unfolded Sup_empty sup_bot_right]
hoelzl@45041
   396
  Inf_binary ~> Inf_insert, Inf_empty, and inf_top_right
hoelzl@45041
   397
  Sup_binary ~> Sup_insert, Sup_empty, and sup_bot_right
hoelzl@45041
   398
  Int_eq_Inter ~> Inf_insert, Inf_empty, and inf_top_right
hoelzl@45041
   399
  Un_eq_Union ~> Sup_insert, Sup_empty, and sup_bot_right
hoelzl@45041
   400
  Inter_def ~> INF_def, image_def
hoelzl@45041
   401
  Union_def ~> SUP_def, image_def
hoelzl@45041
   402
  INT_eq ~> INF_def, and image_def
hoelzl@45041
   403
  UN_eq ~> SUP_def, and image_def
hoelzl@45041
   404
  INF_subset ~> INF_superset_mono [OF _ order_refl]
wenzelm@44800
   405
wenzelm@44800
   406
More consistent and comprehensive names:
wenzelm@44800
   407
hoelzl@45041
   408
  INTER_eq_Inter_image ~> INF_def
hoelzl@45041
   409
  UNION_eq_Union_image ~> SUP_def
haftmann@43872
   410
  INFI_def ~> INF_def
haftmann@43872
   411
  SUPR_def ~> SUP_def
haftmann@44103
   412
  INF_leI ~> INF_lower
haftmann@44103
   413
  INF_leI2 ~> INF_lower2
haftmann@44103
   414
  le_INFI ~> INF_greatest
haftmann@44103
   415
  le_SUPI ~> SUP_upper
haftmann@44103
   416
  le_SUPI2 ~> SUP_upper2
haftmann@44103
   417
  SUP_leI ~> SUP_least
haftmann@43873
   418
  INFI_bool_eq ~> INF_bool_eq
haftmann@43873
   419
  SUPR_bool_eq ~> SUP_bool_eq
haftmann@43873
   420
  INFI_apply ~> INF_apply
haftmann@43873
   421
  SUPR_apply ~> SUP_apply
haftmann@44103
   422
  INTER_def ~> INTER_eq
haftmann@44103
   423
  UNION_def ~> UNION_eq
haftmann@44103
   424
haftmann@43865
   425
INCOMPATIBILITY.
haftmann@43865
   426
wenzelm@44973
   427
* Renamed theory Complete_Lattice to Complete_Lattices.
wenzelm@44973
   428
INCOMPATIBILITY.
wenzelm@44973
   429
wenzelm@44973
   430
* Theory Complete_Lattices: lemmas Inf_eq_top_iff, INF_eq_top_iff,
wenzelm@44973
   431
INF_image, Inf_insert, INF_top, Inf_top_conv, INF_top_conv, SUP_bot,
wenzelm@44973
   432
Sup_bot_conv, SUP_bot_conv, Sup_eq_top_iff, SUP_eq_top_iff, SUP_image,
wenzelm@44973
   433
Sup_insert are now declared as [simp].  INCOMPATIBILITY.
wenzelm@44973
   434
wenzelm@44973
   435
* Theory Lattice: lemmas compl_inf_bot, compl_le_comp_iff,
wenzelm@44973
   436
compl_sup_top, inf_idem, inf_left_idem, inf_sup_absorb, sup_idem,
wenzelm@44973
   437
sup_inf_absob, sup_left_idem are now declared as [simp].  Minor
wenzelm@44973
   438
INCOMPATIBILITY.
wenzelm@44973
   439
krauss@44845
   440
* Added syntactic classes "inf" and "sup" for the respective
krauss@44845
   441
constants.  INCOMPATIBILITY: Changes in the argument order of the
krauss@44845
   442
(mostly internal) locale predicates for some derived classes.
krauss@44845
   443
wenzelm@44800
   444
* Theorem collections ball_simps and bex_simps do not contain theorems
wenzelm@44800
   445
referring to UNION any longer; these have been moved to collection
wenzelm@44800
   446
UN_ball_bex_simps.  INCOMPATIBILITY.
wenzelm@44800
   447
wenzelm@44800
   448
* Theory Archimedean_Field: floor now is defined as parameter of a
wenzelm@44800
   449
separate type class floor_ceiling.
wenzelm@44800
   450
wenzelm@44800
   451
* Theory Finite_Set: more coherent development of fold_set locales:
haftmann@42874
   452
haftmann@42874
   453
    locale fun_left_comm ~> locale comp_fun_commute
haftmann@42874
   454
    locale fun_left_comm_idem ~> locale comp_fun_idem
wenzelm@44800
   455
wenzelm@44800
   456
Both use point-free characterization; interpretation proofs may need
wenzelm@44800
   457
adjustment.  INCOMPATIBILITY.
haftmann@42874
   458
wenzelm@44800
   459
* Theory Limits: Type "'a net" has been renamed to "'a filter", in
huffman@44081
   460
accordance with standard mathematical terminology. INCOMPATIBILITY.
huffman@44081
   461
wenzelm@44800
   462
* Theory Complex_Main: The locale interpretations for the
wenzelm@44800
   463
bounded_linear and bounded_bilinear locales have been removed, in
wenzelm@44800
   464
order to reduce the number of duplicate lemmas. Users must use the
wenzelm@44800
   465
original names for distributivity theorems, potential INCOMPATIBILITY.
huffman@44282
   466
huffman@44282
   467
  divide.add ~> add_divide_distrib
huffman@44282
   468
  divide.diff ~> diff_divide_distrib
huffman@44282
   469
  divide.setsum ~> setsum_divide_distrib
huffman@44282
   470
  mult.add_right ~> right_distrib
huffman@44282
   471
  mult.diff_right ~> right_diff_distrib
huffman@44282
   472
  mult_right.setsum ~> setsum_right_distrib
huffman@44282
   473
  mult_left.diff ~> left_diff_distrib
huffman@44282
   474
wenzelm@44800
   475
* Theory Complex_Main: Several redundant theorems have been removed or
huffman@44568
   476
replaced by more general versions. INCOMPATIBILITY.
huffman@44522
   477
huffman@45051
   478
  real_diff_def ~> minus_real_def
huffman@45051
   479
  real_divide_def ~> divide_real_def
huffman@45051
   480
  real_less_def ~> less_le
huffman@45051
   481
  real_abs_def ~> abs_real_def
huffman@45051
   482
  real_sgn_def ~> sgn_real_def
huffman@45051
   483
  real_mult_commute ~> mult_commute
huffman@45051
   484
  real_mult_assoc ~> mult_assoc
huffman@45051
   485
  real_mult_1 ~> mult_1_left
huffman@45051
   486
  real_add_mult_distrib ~> left_distrib
huffman@45051
   487
  real_zero_not_eq_one ~> zero_neq_one
huffman@45051
   488
  real_mult_inverse_left ~> left_inverse
huffman@45051
   489
  INVERSE_ZERO ~> inverse_zero
huffman@45051
   490
  real_le_refl ~> order_refl
huffman@45051
   491
  real_le_antisym ~> order_antisym
huffman@45051
   492
  real_le_trans ~> order_trans
huffman@45051
   493
  real_le_linear ~> linear
huffman@45051
   494
  real_le_eq_diff ~> le_iff_diff_le_0
huffman@45051
   495
  real_add_left_mono ~> add_left_mono
huffman@45051
   496
  real_mult_order ~> mult_pos_pos
huffman@45051
   497
  real_mult_less_mono2 ~> mult_strict_left_mono
huffman@44822
   498
  real_of_int_real_of_nat ~> real_of_int_of_nat_eq
huffman@44522
   499
  real_0_le_divide_iff ~> zero_le_divide_iff
huffman@44522
   500
  realpow_two_disj ~> power2_eq_iff
huffman@44522
   501
  real_squared_diff_one_factored ~> square_diff_one_factored
huffman@44522
   502
  realpow_two_diff ~> square_diff_square_factored
huffman@44669
   503
  reals_complete2 ~> complete_real
huffman@44749
   504
  real_sum_squared_expand ~> power2_sum
huffman@44522
   505
  exp_ln_eq ~> ln_unique
huffman@44711
   506
  expi_add ~> exp_add
huffman@44711
   507
  expi_zero ~> exp_zero
huffman@44522
   508
  lemma_DERIV_subst ~> DERIV_cong
huffman@44568
   509
  LIMSEQ_Zfun_iff ~> tendsto_Zfun_iff
huffman@44568
   510
  LIMSEQ_const ~> tendsto_const
huffman@44568
   511
  LIMSEQ_norm ~> tendsto_norm
huffman@44568
   512
  LIMSEQ_add ~> tendsto_add
huffman@44568
   513
  LIMSEQ_minus ~> tendsto_minus
huffman@44568
   514
  LIMSEQ_minus_cancel ~> tendsto_minus_cancel
huffman@44568
   515
  LIMSEQ_diff ~> tendsto_diff
huffman@44568
   516
  bounded_linear.LIMSEQ ~> bounded_linear.tendsto
huffman@44568
   517
  bounded_bilinear.LIMSEQ ~> bounded_bilinear.tendsto
huffman@44568
   518
  LIMSEQ_mult ~> tendsto_mult
huffman@44568
   519
  LIMSEQ_inverse ~> tendsto_inverse
huffman@44568
   520
  LIMSEQ_divide ~> tendsto_divide
huffman@44568
   521
  LIMSEQ_pow ~> tendsto_power
huffman@44568
   522
  LIMSEQ_setsum ~> tendsto_setsum
huffman@44568
   523
  LIMSEQ_setprod ~> tendsto_setprod
huffman@44568
   524
  LIMSEQ_norm_zero ~> tendsto_norm_zero_iff
huffman@44568
   525
  LIMSEQ_rabs_zero ~> tendsto_rabs_zero_iff
huffman@44568
   526
  LIMSEQ_imp_rabs ~> tendsto_rabs
huffman@44710
   527
  LIMSEQ_add_minus ~> tendsto_add [OF _ tendsto_minus]
huffman@44710
   528
  LIMSEQ_add_const ~> tendsto_add [OF _ tendsto_const]
huffman@44710
   529
  LIMSEQ_diff_const ~> tendsto_diff [OF _ tendsto_const]
huffman@44748
   530
  LIMSEQ_Complex ~> tendsto_Complex
huffman@44568
   531
  LIM_ident ~> tendsto_ident_at
huffman@44568
   532
  LIM_const ~> tendsto_const
huffman@44568
   533
  LIM_add ~> tendsto_add
huffman@44568
   534
  LIM_add_zero ~> tendsto_add_zero
huffman@44568
   535
  LIM_minus ~> tendsto_minus
huffman@44568
   536
  LIM_diff ~> tendsto_diff
huffman@44568
   537
  LIM_norm ~> tendsto_norm
huffman@44568
   538
  LIM_norm_zero ~> tendsto_norm_zero
huffman@44568
   539
  LIM_norm_zero_cancel ~> tendsto_norm_zero_cancel
huffman@44568
   540
  LIM_norm_zero_iff ~> tendsto_norm_zero_iff
huffman@44568
   541
  LIM_rabs ~> tendsto_rabs
huffman@44568
   542
  LIM_rabs_zero ~> tendsto_rabs_zero
huffman@44568
   543
  LIM_rabs_zero_cancel ~> tendsto_rabs_zero_cancel
huffman@44568
   544
  LIM_rabs_zero_iff ~> tendsto_rabs_zero_iff
huffman@44568
   545
  LIM_compose ~> tendsto_compose
huffman@44568
   546
  LIM_mult ~> tendsto_mult
huffman@44568
   547
  LIM_scaleR ~> tendsto_scaleR
huffman@44568
   548
  LIM_of_real ~> tendsto_of_real
huffman@44568
   549
  LIM_power ~> tendsto_power
huffman@44568
   550
  LIM_inverse ~> tendsto_inverse
huffman@44568
   551
  LIM_sgn ~> tendsto_sgn
huffman@44568
   552
  isCont_LIM_compose ~> isCont_tendsto_compose
huffman@44568
   553
  bounded_linear.LIM ~> bounded_linear.tendsto
huffman@44568
   554
  bounded_linear.LIM_zero ~> bounded_linear.tendsto_zero
huffman@44568
   555
  bounded_bilinear.LIM ~> bounded_bilinear.tendsto
huffman@44568
   556
  bounded_bilinear.LIM_prod_zero ~> bounded_bilinear.tendsto_zero
huffman@44568
   557
  bounded_bilinear.LIM_left_zero ~> bounded_bilinear.tendsto_left_zero
huffman@44568
   558
  bounded_bilinear.LIM_right_zero ~> bounded_bilinear.tendsto_right_zero
huffman@44568
   559
  LIM_inverse_fun ~> tendsto_inverse [OF tendsto_ident_at]
huffman@44522
   560
wenzelm@44967
   561
* Theory Complex_Main: The definition of infinite series was
wenzelm@44967
   562
generalized.  Now it is defined on the type class {topological_space,
wenzelm@44967
   563
comm_monoid_add}.  Hence it is useable also for extended real numbers.
wenzelm@42484
   564
huffman@44908
   565
* Theory Complex_Main: The complex exponential function "expi" is now
huffman@44908
   566
a type-constrained abbreviation for "exp :: complex => complex"; thus
huffman@44908
   567
several polymorphic lemmas about "exp" are now applicable to "expi".
huffman@44908
   568
wenzelm@44968
   569
* Code generation:
wenzelm@44968
   570
wenzelm@44968
   571
  - Theory Library/Code_Char_ord provides native ordering of
wenzelm@44968
   572
    characters in the target language.
wenzelm@44968
   573
wenzelm@44968
   574
  - Commands code_module and code_library are legacy, use export_code
wenzelm@44968
   575
    instead.
wenzelm@44968
   576
wenzelm@44968
   577
  - Method "evaluation" is legacy, use method "eval" instead.
wenzelm@44968
   578
wenzelm@44968
   579
  - Legacy evaluator "SML" is deactivated by default.  May be
wenzelm@44968
   580
    reactivated by the following theory command:
wenzelm@44968
   581
wenzelm@44968
   582
      setup {* Value.add_evaluator ("SML", Codegen.eval_term) *}
wenzelm@44968
   583
wenzelm@44968
   584
* Declare ext [intro] by default.  Rare INCOMPATIBILITY.
wenzelm@44968
   585
wenzelm@45088
   586
* New proof method "induction" that gives induction hypotheses the
wenzelm@45088
   587
name "IH", thus distinguishing them from further hypotheses that come
wenzelm@45088
   588
from rule induction.  The latter are still called "hyps".  Method
wenzelm@45088
   589
"induction" is a thin wrapper around "induct" and follows the same
wenzelm@45088
   590
syntax.
wenzelm@45088
   591
wenzelm@44968
   592
* Method "fastsimp" has been renamed to "fastforce", but "fastsimp" is
wenzelm@44968
   593
still available as a legacy feature for some time.
wenzelm@44968
   594
wenzelm@44968
   595
* Nitpick:
wenzelm@44968
   596
  - Added "need" and "total_consts" options.
wenzelm@44968
   597
  - Reintroduced "show_skolems" option by popular demand.
wenzelm@44968
   598
  - Renamed attribute: nitpick_def ~> nitpick_unfold.
wenzelm@44968
   599
    INCOMPATIBILITY.
wenzelm@44968
   600
wenzelm@44968
   601
* Sledgehammer:
wenzelm@44968
   602
  - Use quasi-sound (and efficient) translations by default.
wenzelm@44968
   603
  - Added support for the following provers: E-ToFoF, LEO-II,
wenzelm@44968
   604
    Satallax, SNARK, Waldmeister, and Z3 with TPTP syntax.
wenzelm@44968
   605
  - Automatically preplay and minimize proofs before showing them if
wenzelm@44968
   606
    this can be done within reasonable time.
wenzelm@44968
   607
  - sledgehammer available_provers ~> sledgehammer supported_provers.
wenzelm@44968
   608
    INCOMPATIBILITY.
wenzelm@44968
   609
  - Added "preplay_timeout", "slicing", "type_enc", "sound",
wenzelm@44968
   610
    "max_mono_iters", and "max_new_mono_instances" options.
wenzelm@44968
   611
  - Removed "explicit_apply" and "full_types" options as well as "Full
wenzelm@44968
   612
    Types" Proof General menu item. INCOMPATIBILITY.
wenzelm@44968
   613
wenzelm@44968
   614
* Metis:
wenzelm@44968
   615
  - Removed "metisF" -- use "metis" instead. INCOMPATIBILITY.
wenzelm@44968
   616
  - Obsoleted "metisFT" -- use "metis (full_types)" instead.
wenzelm@44968
   617
    INCOMPATIBILITY.
wenzelm@44968
   618
wenzelm@44968
   619
* Command 'try':
wenzelm@44968
   620
  - Renamed 'try_methods' and added "simp:", "intro:", "dest:", and
wenzelm@44968
   621
    "elim:" options. INCOMPATIBILITY.
wenzelm@44968
   622
  - Introduced 'try' that not only runs 'try_methods' but also
wenzelm@44968
   623
    'solve_direct', 'sledgehammer', 'quickcheck', and 'nitpick'.
wenzelm@44968
   624
wenzelm@44968
   625
* Quickcheck:
wenzelm@44968
   626
  - Added "eval" option to evaluate terms for the found counterexample
wenzelm@44968
   627
    (currently only supported by the default (exhaustive) tester).
wenzelm@44968
   628
  - Added post-processing of terms to obtain readable counterexamples
wenzelm@44968
   629
    (currently only supported by the default (exhaustive) tester).
wenzelm@44968
   630
  - New counterexample generator quickcheck[narrowing] enables
wenzelm@44968
   631
    narrowing-based testing.  Requires the Glasgow Haskell compiler
wenzelm@44968
   632
    with its installation location defined in the Isabelle settings
wenzelm@44968
   633
    environment as ISABELLE_GHC.
wenzelm@44968
   634
  - Removed quickcheck tester "SML" based on the SML code generator
wenzelm@44968
   635
    (formly in HOL/Library).
wenzelm@44968
   636
wenzelm@44968
   637
* Function package: discontinued option "tailrec".  INCOMPATIBILITY,
wenzelm@44968
   638
use 'partial_function' instead.
wenzelm@44968
   639
wenzelm@44968
   640
* Theory Library/Extended_Reals replaces now the positive extended
wenzelm@44968
   641
reals found in probability theory. This file is extended by
wenzelm@44968
   642
Multivariate_Analysis/Extended_Real_Limits.
wenzelm@44968
   643
wenzelm@44974
   644
* Theory Library/Old_Recdef: old 'recdef' package has been moved here,
wenzelm@44974
   645
from where it must be imported explicitly if it is really required.
wenzelm@44974
   646
INCOMPATIBILITY.
wenzelm@44968
   647
wenzelm@44968
   648
* Theory Library/Wfrec: well-founded recursion combinator "wfrec" has
wenzelm@44968
   649
been moved here.  INCOMPATIBILITY.
wenzelm@44968
   650
wenzelm@44968
   651
* Theory Library/Saturated provides type of numbers with saturated
wenzelm@44968
   652
arithmetic.
wenzelm@44968
   653
wenzelm@44968
   654
* Theory Library/Product_Lattice defines a pointwise ordering for the
wenzelm@44968
   655
product type 'a * 'b, and provides instance proofs for various order
wenzelm@44968
   656
and lattice type classes.
wenzelm@44968
   657
wenzelm@44968
   658
* Theory Library/Countable now provides the "countable_datatype" proof
wenzelm@44968
   659
method for proving "countable" class instances for datatypes.
wenzelm@44968
   660
wenzelm@44968
   661
* Theory Library/Cset_Monad allows do notation for computable sets
wenzelm@44968
   662
(cset) via the generic monad ad-hoc overloading facility.
wenzelm@44968
   663
wenzelm@44968
   664
* Library: Theories of common data structures are split into theories
wenzelm@44968
   665
for implementation, an invariant-ensuring type, and connection to an
wenzelm@44968
   666
abstract type. INCOMPATIBILITY.
wenzelm@44968
   667
wenzelm@44968
   668
  - RBT is split into RBT and RBT_Mapping.
wenzelm@44968
   669
  - AssocList is split and renamed into AList and AList_Mapping.
wenzelm@44968
   670
  - DList is split into DList_Impl, DList, and DList_Cset.
wenzelm@44968
   671
  - Cset is split into Cset and List_Cset.
wenzelm@44968
   672
wenzelm@44968
   673
* Theory Library/Nat_Infinity has been renamed to
wenzelm@44968
   674
Library/Extended_Nat, with name changes of the following types and
wenzelm@44968
   675
constants:
wenzelm@44968
   676
wenzelm@44968
   677
  type inat   ~> type enat
wenzelm@44968
   678
  Fin         ~> enat
wenzelm@44968
   679
  Infty       ~> infinity (overloaded)
wenzelm@44968
   680
  iSuc        ~> eSuc
wenzelm@44968
   681
  the_Fin     ~> the_enat
wenzelm@44968
   682
wenzelm@44968
   683
Every theorem name containing "inat", "Fin", "Infty", or "iSuc" has
wenzelm@44968
   684
been renamed accordingly. INCOMPATIBILITY.
wenzelm@44968
   685
wenzelm@44968
   686
* Session Multivariate_Analysis: The euclidean_space type class now
wenzelm@44968
   687
fixes a constant "Basis :: 'a set" consisting of the standard
wenzelm@44968
   688
orthonormal basis for the type. Users now have the option of
wenzelm@44968
   689
quantifying over this set instead of using the "basis" function, e.g.
wenzelm@44968
   690
"ALL x:Basis. P x" vs "ALL i<DIM('a). P (basis i)".
wenzelm@44968
   691
wenzelm@44968
   692
* Session Multivariate_Analysis: Type "('a, 'b) cart" has been renamed
wenzelm@44968
   693
to "('a, 'b) vec" (the syntax "'a ^ 'b" remains unaffected). Constants
wenzelm@44968
   694
"Cart_nth" and "Cart_lambda" have been respectively renamed to
wenzelm@44968
   695
"vec_nth" and "vec_lambda"; theorems mentioning those names have
wenzelm@44968
   696
changed to match. Definition theorems for overloaded constants now use
wenzelm@44968
   697
the standard "foo_vec_def" naming scheme. A few other theorems have
wenzelm@44968
   698
been renamed as follows (INCOMPATIBILITY):
wenzelm@44968
   699
wenzelm@44968
   700
  Cart_eq          ~> vec_eq_iff
wenzelm@44968
   701
  dist_nth_le_cart ~> dist_vec_nth_le
wenzelm@44968
   702
  tendsto_vector   ~> vec_tendstoI
wenzelm@44968
   703
  Cauchy_vector    ~> vec_CauchyI
wenzelm@44968
   704
wenzelm@44968
   705
* Session Multivariate_Analysis: Several duplicate theorems have been
wenzelm@44968
   706
removed, and other theorems have been renamed or replaced with more
wenzelm@44968
   707
general versions. INCOMPATIBILITY.
wenzelm@44968
   708
wenzelm@44968
   709
  finite_choice ~> finite_set_choice
wenzelm@44968
   710
  eventually_conjI ~> eventually_conj
wenzelm@44968
   711
  eventually_and ~> eventually_conj_iff
wenzelm@44968
   712
  eventually_false ~> eventually_False
wenzelm@44968
   713
  setsum_norm ~> norm_setsum
wenzelm@44968
   714
  Lim_sequentially ~> LIMSEQ_def
wenzelm@44968
   715
  Lim_ident_at ~> LIM_ident
wenzelm@44968
   716
  Lim_const ~> tendsto_const
wenzelm@44968
   717
  Lim_cmul ~> tendsto_scaleR [OF tendsto_const]
wenzelm@44968
   718
  Lim_neg ~> tendsto_minus
wenzelm@44968
   719
  Lim_add ~> tendsto_add
wenzelm@44968
   720
  Lim_sub ~> tendsto_diff
wenzelm@44968
   721
  Lim_mul ~> tendsto_scaleR
wenzelm@44968
   722
  Lim_vmul ~> tendsto_scaleR [OF _ tendsto_const]
wenzelm@44968
   723
  Lim_null_norm ~> tendsto_norm_zero_iff [symmetric]
wenzelm@44968
   724
  Lim_linear ~> bounded_linear.tendsto
wenzelm@44968
   725
  Lim_component ~> tendsto_euclidean_component
wenzelm@44968
   726
  Lim_component_cart ~> tendsto_vec_nth
wenzelm@44968
   727
  Lim_inner ~> tendsto_inner [OF tendsto_const]
wenzelm@44968
   728
  dot_lsum ~> inner_setsum_left
wenzelm@44968
   729
  dot_rsum ~> inner_setsum_right
wenzelm@44968
   730
  continuous_cmul ~> continuous_scaleR [OF continuous_const]
wenzelm@44968
   731
  continuous_neg ~> continuous_minus
wenzelm@44968
   732
  continuous_sub ~> continuous_diff
wenzelm@44968
   733
  continuous_vmul ~> continuous_scaleR [OF _ continuous_const]
wenzelm@44968
   734
  continuous_mul ~> continuous_scaleR
wenzelm@44968
   735
  continuous_inv ~> continuous_inverse
wenzelm@44968
   736
  continuous_at_within_inv ~> continuous_at_within_inverse
wenzelm@44968
   737
  continuous_at_inv ~> continuous_at_inverse
wenzelm@44968
   738
  continuous_at_norm ~> continuous_norm [OF continuous_at_id]
wenzelm@44968
   739
  continuous_at_infnorm ~> continuous_infnorm [OF continuous_at_id]
wenzelm@44968
   740
  continuous_at_component ~> continuous_component [OF continuous_at_id]
wenzelm@44968
   741
  continuous_on_neg ~> continuous_on_minus
wenzelm@44968
   742
  continuous_on_sub ~> continuous_on_diff
wenzelm@44968
   743
  continuous_on_cmul ~> continuous_on_scaleR [OF continuous_on_const]
wenzelm@44968
   744
  continuous_on_vmul ~> continuous_on_scaleR [OF _ continuous_on_const]
wenzelm@44968
   745
  continuous_on_mul ~> continuous_on_scaleR
wenzelm@44968
   746
  continuous_on_mul_real ~> continuous_on_mult
wenzelm@44968
   747
  continuous_on_inner ~> continuous_on_inner [OF continuous_on_const]
wenzelm@44968
   748
  continuous_on_norm ~> continuous_on_norm [OF continuous_on_id]
wenzelm@44968
   749
  continuous_on_inverse ~> continuous_on_inv
wenzelm@44968
   750
  uniformly_continuous_on_neg ~> uniformly_continuous_on_minus
wenzelm@44968
   751
  uniformly_continuous_on_sub ~> uniformly_continuous_on_diff
wenzelm@44968
   752
  subset_interior ~> interior_mono
wenzelm@44968
   753
  subset_closure ~> closure_mono
wenzelm@44968
   754
  closure_univ ~> closure_UNIV
wenzelm@44968
   755
  real_arch_lt ~> reals_Archimedean2
wenzelm@44968
   756
  real_arch ~> reals_Archimedean3
wenzelm@44968
   757
  real_abs_norm ~> abs_norm_cancel
wenzelm@44968
   758
  real_abs_sub_norm ~> norm_triangle_ineq3
wenzelm@44968
   759
  norm_cauchy_schwarz_abs ~> Cauchy_Schwarz_ineq2
wenzelm@44968
   760
wenzelm@44968
   761
* Session HOL-Probability:
wenzelm@44968
   762
  - Caratheodory's extension lemma is now proved for ring_of_sets.
wenzelm@44968
   763
  - Infinite products of probability measures are now available.
wenzelm@44968
   764
  - Sigma closure is independent, if the generator is independent
wenzelm@44968
   765
  - Use extended reals instead of positive extended
wenzelm@44968
   766
    reals. INCOMPATIBILITY.
wenzelm@44968
   767
huffman@45049
   768
* Session HOLCF: Discontinued legacy theorem names, INCOMPATIBILITY.
huffman@45049
   769
huffman@45049
   770
  expand_fun_below ~> fun_below_iff
huffman@45049
   771
  below_fun_ext ~> fun_belowI
huffman@45049
   772
  expand_cfun_eq ~> cfun_eq_iff
huffman@45049
   773
  ext_cfun ~> cfun_eqI
huffman@45049
   774
  expand_cfun_below ~> cfun_below_iff
huffman@45049
   775
  below_cfun_ext ~> cfun_belowI
huffman@45049
   776
  monofun_fun_fun ~> fun_belowD
huffman@45049
   777
  monofun_fun_arg ~> monofunE
huffman@45049
   778
  monofun_lub_fun ~> adm_monofun [THEN admD]
huffman@45049
   779
  cont_lub_fun ~> adm_cont [THEN admD]
huffman@45049
   780
  cont2cont_Rep_CFun ~> cont2cont_APP
huffman@45049
   781
  cont_Rep_CFun_app ~> cont_APP_app
huffman@45049
   782
  cont_Rep_CFun_app_app ~> cont_APP_app_app
huffman@45049
   783
  cont_cfun_fun ~> cont_Rep_cfun1 [THEN contE]
huffman@45049
   784
  cont_cfun_arg ~> cont_Rep_cfun2 [THEN contE]
huffman@45049
   785
  contlub_cfun ~> lub_APP [symmetric]
huffman@45049
   786
  contlub_LAM ~> lub_LAM [symmetric]
huffman@45049
   787
  thelubI ~> lub_eqI
huffman@45049
   788
  UU_I ~> bottomI
huffman@45049
   789
  lift_distinct1 ~> lift.distinct(1)
huffman@45049
   790
  lift_distinct2 ~> lift.distinct(2)
huffman@45049
   791
  Def_not_UU ~> lift.distinct(2)
huffman@45049
   792
  Def_inject ~> lift.inject
huffman@45049
   793
  below_UU_iff ~> below_bottom_iff
huffman@45049
   794
  eq_UU_iff ~> eq_bottom_iff
huffman@45049
   795
huffman@44903
   796
krauss@41685
   797
*** Document preparation ***
krauss@41685
   798
wenzelm@44800
   799
* Antiquotation @{rail} layouts railroad syntax diagrams, see also
wenzelm@44800
   800
isar-ref manual, both for description and actual application of the
wenzelm@44800
   801
same.
wenzelm@44800
   802
wenzelm@44800
   803
* Antiquotation @{value} evaluates the given term and presents its
wenzelm@44800
   804
result.
wenzelm@44800
   805
wenzelm@44800
   806
* Antiquotations: term style "isub" provides ad-hoc conversion of
wenzelm@44800
   807
variables x1, y23 into subscripted form x\<^isub>1,
wenzelm@44800
   808
y\<^isub>2\<^isub>3.
wenzelm@41651
   809
wenzelm@42484
   810
* Predefined LaTeX macros for Isabelle symbols \<bind> and \<then>
wenzelm@42484
   811
(e.g. see ~~/src/HOL/Library/Monad_Syntax.thy).
wenzelm@42484
   812
wenzelm@44967
   813
* Localized \isabellestyle switch can be used within blocks or groups
wenzelm@44967
   814
like this:
wenzelm@44967
   815
wenzelm@44967
   816
  \isabellestyle{it}  %preferred default
wenzelm@44967
   817
  {\isabellestylett @{text "typewriter stuff"}}
wenzelm@44967
   818
wenzelm@44967
   819
* Discontinued special treatment of hard tabulators.  Implicit
wenzelm@44967
   820
tab-width is now defined as 1.  Potential INCOMPATIBILITY for visual
wenzelm@44967
   821
layouts.
wenzelm@44800
   822
wenzelm@41651
   823
wenzelm@41944
   824
*** ML ***
wenzelm@41944
   825
wenzelm@43731
   826
* The inner syntax of sort/type/term/prop supports inlined YXML
wenzelm@43731
   827
representations within quoted string tokens.  By encoding logical
wenzelm@43731
   828
entities via Term_XML (in ML or Scala) concrete syntax can be
wenzelm@43731
   829
bypassed, which is particularly useful for producing bits of text
wenzelm@43731
   830
under external program control.
wenzelm@43731
   831
wenzelm@43565
   832
* Antiquotations for ML and document preparation are managed as theory
wenzelm@43565
   833
data, which requires explicit setup.
wenzelm@43565
   834
wenzelm@42897
   835
* Isabelle_Process.is_active allows tools to check if the official
wenzelm@42897
   836
process wrapper is running (Isabelle/Scala/jEdit) or the old TTY loop
wenzelm@42897
   837
(better known as Proof General).
wenzelm@42897
   838
wenzelm@42360
   839
* Structure Proof_Context follows standard naming scheme.  Old
wenzelm@42360
   840
ProofContext is still available for some time as legacy alias.
wenzelm@42360
   841
wenzelm@42015
   842
* Structure Timing provides various operations for timing; supersedes
wenzelm@42015
   843
former start_timing/end_timing etc.
wenzelm@42015
   844
wenzelm@41944
   845
* Path.print is the official way to show file-system paths to users
wenzelm@41944
   846
(including quotes etc.).
wenzelm@41944
   847
wenzelm@42056
   848
* Inner syntax: identifiers in parse trees of generic categories
wenzelm@42056
   849
"logic", "aprop", "idt" etc. carry position information (disguised as
wenzelm@42056
   850
type constraints).  Occasional INCOMPATIBILITY with non-compliant
wenzelm@42057
   851
translations that choke on unexpected type constraints.  Positions can
wenzelm@42057
   852
be stripped in ML translations via Syntax.strip_positions /
wenzelm@42057
   853
Syntax.strip_positions_ast, or via the syntax constant
wenzelm@42057
   854
"_strip_positions" within parse trees.  As last resort, positions can
wenzelm@42057
   855
be disabled via the configuration option Syntax.positions, which is
wenzelm@42057
   856
called "syntax_positions" in Isar attribute syntax.
wenzelm@42056
   857
wenzelm@42290
   858
* Discontinued special status of various ML structures that contribute
wenzelm@42290
   859
to structure Syntax (Ast, Lexicon, Mixfix, Parser, Printer etc.): less
wenzelm@42290
   860
pervasive content, no inclusion in structure Syntax.  INCOMPATIBILITY,
wenzelm@42290
   861
refer directly to Ast.Constant, Lexicon.is_identifier,
wenzelm@42290
   862
Syntax_Trans.mk_binder_tr etc.
wenzelm@42224
   863
wenzelm@42247
   864
* Typed print translation: discontinued show_sorts argument, which is
wenzelm@42247
   865
already available via context of "advanced" translation.
wenzelm@42247
   866
wenzelm@42370
   867
* Refined PARALLEL_GOALS tactical: degrades gracefully for schematic
wenzelm@42370
   868
goal states; body tactic needs to address all subgoals uniformly.
wenzelm@42370
   869
wenzelm@42403
   870
* Slightly more special eq_list/eq_set, with shortcut involving
wenzelm@42403
   871
pointer equality (assumes that eq relation is reflexive).
wenzelm@42403
   872
wenzelm@42793
   873
* Classical tactics use proper Proof.context instead of historic types
wenzelm@42793
   874
claset/clasimpset.  Old-style declarations like addIs, addEs, addDs
wenzelm@42793
   875
operate directly on Proof.context.  Raw type claset retains its use as
wenzelm@42793
   876
snapshot of the classical context, which can be recovered via
wenzelm@42793
   877
(put_claset HOL_cs) etc.  Type clasimpset has been discontinued.
wenzelm@42793
   878
INCOMPATIBILITY, classical tactics and derived proof methods require
wenzelm@42793
   879
proper Proof.context.
wenzelm@42793
   880
wenzelm@44803
   881
wenzelm@44803
   882
*** System ***
wenzelm@44803
   883
wenzelm@44968
   884
* Discontinued support for Poly/ML 5.2, which was the last version
wenzelm@44968
   885
without proper multithreading and TimeLimit implementation.
wenzelm@44968
   886
wenzelm@44968
   887
* Discontinued old lib/scripts/polyml-platform, which has been
wenzelm@44968
   888
obsolete since Isabelle2009-2.
wenzelm@44968
   889
wenzelm@44967
   890
* Various optional external tools are referenced more robustly and
wenzelm@44967
   891
uniformly by explicit Isabelle settings as follows:
wenzelm@44967
   892
wenzelm@44967
   893
  ISABELLE_CSDP   (formerly CSDP_EXE)
wenzelm@44967
   894
  ISABELLE_GHC    (formerly EXEC_GHC or GHC_PATH)
wenzelm@44967
   895
  ISABELLE_OCAML  (formerly EXEC_OCAML)
wenzelm@44967
   896
  ISABELLE_SWIPL  (formerly EXEC_SWIPL)
wenzelm@44967
   897
  ISABELLE_YAP    (formerly EXEC_YAP)
wenzelm@44967
   898
wenzelm@44967
   899
Note that automated detection from the file-system or search path has
wenzelm@44967
   900
been discontinued.  INCOMPATIBILITY.
wenzelm@44967
   901
wenzelm@43752
   902
* Scala layer provides JVM method invocation service for static
wenzelm@44800
   903
methods of type (String)String, see Invoke_Scala.method in ML.  For
wenzelm@44800
   904
example:
wenzelm@43752
   905
wenzelm@43752
   906
  Invoke_Scala.method "java.lang.System.getProperty" "java.home"
wenzelm@43752
   907
wenzelm@44967
   908
Together with YXML.string_of_body/parse_body and XML.Encode/Decode
wenzelm@44967
   909
this allows to pass structured values between ML and Scala.
wenzelm@44800
   910
wenzelm@44803
   911
* The IsabelleText fonts includes some further glyphs to support the
wenzelm@44803
   912
Prover IDE.  Potential INCOMPATIBILITY: users who happen to have
wenzelm@44803
   913
installed a local copy (which is normally *not* required) need to
wenzelm@44803
   914
delete or update it from ~~/lib/fonts/.
wenzelm@41944
   915
wenzelm@41703
   916
wenzelm@45089
   917
wenzelm@41512
   918
New in Isabelle2011 (January 2011)
wenzelm@41512
   919
----------------------------------
wenzelm@37383
   920
wenzelm@37536
   921
*** General ***
wenzelm@37536
   922
wenzelm@41573
   923
* Experimental Prover IDE based on Isabelle/Scala and jEdit (see
wenzelm@41612
   924
src/Tools/jEdit).  This also serves as IDE for Isabelle/ML, with
wenzelm@41612
   925
useful tooltips and hyperlinks produced from its static analysis.  The
wenzelm@41612
   926
bundled component provides an executable Isabelle tool that can be run
wenzelm@41612
   927
like this:
wenzelm@41612
   928
wenzelm@41612
   929
  Isabelle2011/bin/isabelle jedit
wenzelm@41573
   930
wenzelm@40948
   931
* Significantly improved Isabelle/Isar implementation manual.
wenzelm@40948
   932
wenzelm@41594
   933
* System settings: ISABELLE_HOME_USER now includes ISABELLE_IDENTIFIER
wenzelm@41595
   934
(and thus refers to something like $HOME/.isabelle/Isabelle2011),
wenzelm@41594
   935
while the default heap location within that directory lacks that extra
wenzelm@41594
   936
suffix.  This isolates multiple Isabelle installations from each
wenzelm@41594
   937
other, avoiding problems with old settings in new versions.
wenzelm@41594
   938
INCOMPATIBILITY, need to copy/upgrade old user settings manually.
wenzelm@41594
   939
wenzelm@40947
   940
* Source files are always encoded as UTF-8, instead of old-fashioned
wenzelm@40947
   941
ISO-Latin-1.  INCOMPATIBILITY.  Isabelle LaTeX documents might require
wenzelm@40948
   942
the following package declarations:
wenzelm@40947
   943
wenzelm@40947
   944
  \usepackage[utf8]{inputenc}
wenzelm@40947
   945
  \usepackage{textcomp}
wenzelm@40947
   946
krauss@41440
   947
* Explicit treatment of UTF-8 sequences as Isabelle symbols, such that
wenzelm@37536
   948
a Unicode character is treated as a single symbol, not a sequence of
wenzelm@37536
   949
non-ASCII bytes as before.  Since Isabelle/ML string literals may
wenzelm@37536
   950
contain symbols without further backslash escapes, Unicode can now be
wenzelm@37536
   951
used here as well.  Recall that Symbol.explode in ML provides a
wenzelm@37536
   952
consistent view on symbols, while raw explode (or String.explode)
wenzelm@37536
   953
merely give a byte-oriented representation.
wenzelm@37536
   954
wenzelm@41594
   955
* Theory loader: source files are primarily located via the master
wenzelm@41594
   956
directory of each theory node (where the .thy file itself resides).
wenzelm@41594
   957
The global load path is still partially available as legacy feature.
wenzelm@41594
   958
Minor INCOMPATIBILITY due to subtle change in file lookup: use
wenzelm@41594
   959
explicit paths, relatively to the theory.
wenzelm@38135
   960
wenzelm@37939
   961
* Special treatment of ML file names has been discontinued.
wenzelm@37939
   962
Historically, optional extensions .ML or .sml were added on demand --
wenzelm@37939
   963
at the cost of clarity of file dependencies.  Recall that Isabelle/ML
wenzelm@37939
   964
files exclusively use the .ML extension.  Minor INCOMPATIBILTY.
wenzelm@37939
   965
wenzelm@38980
   966
* Various options that affect pretty printing etc. are now properly
wenzelm@38767
   967
handled within the context via configuration options, instead of
wenzelm@40879
   968
unsynchronized references or print modes.  There are both ML Config.T
wenzelm@40879
   969
entities and Isar declaration attributes to access these.
wenzelm@38767
   970
wenzelm@39125
   971
  ML (Config.T)                 Isar (attribute)
wenzelm@39125
   972
wenzelm@39128
   973
  eta_contract                  eta_contract
wenzelm@39137
   974
  show_brackets                 show_brackets
wenzelm@39134
   975
  show_sorts                    show_sorts
wenzelm@39134
   976
  show_types                    show_types
wenzelm@39126
   977
  show_question_marks           show_question_marks
wenzelm@39126
   978
  show_consts                   show_consts
wenzelm@40879
   979
  show_abbrevs                  show_abbrevs
wenzelm@39126
   980
wenzelm@41379
   981
  Syntax.ast_trace              syntax_ast_trace
wenzelm@41379
   982
  Syntax.ast_stat               syntax_ast_stat
wenzelm@39126
   983
  Syntax.ambiguity_level        syntax_ambiguity_level
wenzelm@39126
   984
wenzelm@39126
   985
  Goal_Display.goals_limit      goals_limit
wenzelm@39126
   986
  Goal_Display.show_main_goal   show_main_goal
wenzelm@39126
   987
wenzelm@41379
   988
  Method.rule_trace             rule_trace
wenzelm@41379
   989
wenzelm@39125
   990
  Thy_Output.display            thy_output_display
wenzelm@39125
   991
  Thy_Output.quotes             thy_output_quotes
wenzelm@39125
   992
  Thy_Output.indent             thy_output_indent
wenzelm@39125
   993
  Thy_Output.source             thy_output_source
wenzelm@39125
   994
  Thy_Output.break              thy_output_break
wenzelm@39125
   995
krauss@41440
   996
Note that corresponding "..._default" references in ML may only be
wenzelm@38767
   997
changed globally at the ROOT session setup, but *not* within a theory.
wenzelm@40879
   998
The option "show_abbrevs" supersedes the former print mode
wenzelm@40879
   999
"no_abbrevs" with inverted meaning.
wenzelm@38767
  1000
wenzelm@40878
  1001
* More systematic naming of some configuration options.
huffman@41294
  1002
INCOMPATIBILITY.
wenzelm@40878
  1003
wenzelm@40878
  1004
  trace_simp  ~>  simp_trace
wenzelm@40878
  1005
  debug_simp  ~>  simp_debug
wenzelm@40878
  1006
wenzelm@40291
  1007
* Support for real valued configuration options, using simplistic
wenzelm@40291
  1008
floating-point notation that coincides with the inner syntax for
wenzelm@40291
  1009
float_token.
wenzelm@40291
  1010
wenzelm@41594
  1011
* Support for real valued preferences (with approximative PGIP type):
wenzelm@41594
  1012
front-ends need to accept "pgint" values in float notation.
wenzelm@41594
  1013
INCOMPATIBILITY.
wenzelm@41573
  1014
wenzelm@41573
  1015
* The IsabelleText font now includes Cyrillic, Hebrew, Arabic from
wenzelm@41573
  1016
DejaVu Sans.
wenzelm@41573
  1017
wenzelm@41594
  1018
* Discontinued support for Poly/ML 5.0 and 5.1 versions.
wenzelm@41594
  1019
wenzelm@40948
  1020
wenzelm@40948
  1021
*** Pure ***
wenzelm@40948
  1022
wenzelm@41249
  1023
* Command 'type_synonym' (with single argument) replaces somewhat
wenzelm@41249
  1024
outdated 'types', which is still available as legacy feature for some
wenzelm@41249
  1025
time.
wenzelm@41249
  1026
wenzelm@41249
  1027
* Command 'nonterminal' (with 'and' separated list of arguments)
wenzelm@41249
  1028
replaces somewhat outdated 'nonterminals'.  INCOMPATIBILITY.
wenzelm@41229
  1029
wenzelm@40965
  1030
* Command 'notepad' replaces former 'example_proof' for
wenzelm@41020
  1031
experimentation in Isar without any result.  INCOMPATIBILITY.
wenzelm@40965
  1032
ballarin@41435
  1033
* Locale interpretation commands 'interpret' and 'sublocale' accept
ballarin@41435
  1034
lists of equations to map definitions in a locale to appropriate
ballarin@41435
  1035
entities in the context of the interpretation.  The 'interpretation'
ballarin@41435
  1036
command already provided this functionality.
ballarin@41435
  1037
wenzelm@41594
  1038
* Diagnostic command 'print_dependencies' prints the locale instances
wenzelm@41594
  1039
that would be activated if the specified expression was interpreted in
wenzelm@41594
  1040
the current context.  Variant "print_dependencies!" assumes a context
wenzelm@41594
  1041
without interpretations.
ballarin@38110
  1042
ballarin@38110
  1043
* Diagnostic command 'print_interps' prints interpretations in proofs
ballarin@38110
  1044
in addition to interpretations in theories.
ballarin@38110
  1045
wenzelm@38708
  1046
* Discontinued obsolete 'global' and 'local' commands to manipulate
wenzelm@38708
  1047
the theory name space.  Rare INCOMPATIBILITY.  The ML functions
wenzelm@38708
  1048
Sign.root_path and Sign.local_path may be applied directly where this
wenzelm@38708
  1049
feature is still required for historical reasons.
wenzelm@38708
  1050
wenzelm@40948
  1051
* Discontinued obsolete 'constdefs' command.  INCOMPATIBILITY, use
haftmann@39215
  1052
'definition' instead.
haftmann@39215
  1053
wenzelm@41574
  1054
* The "prems" fact, which refers to the accidental collection of
wenzelm@41574
  1055
foundational premises in the context, is now explicitly marked as
wenzelm@41594
  1056
legacy feature and will be discontinued soon.  Consider using "assms"
wenzelm@41594
  1057
of the head statement or reference facts by explicit names.
wenzelm@41574
  1058
wenzelm@40801
  1059
* Document antiquotations @{class} and @{type} print classes and type
wenzelm@40801
  1060
constructors.
wenzelm@40801
  1061
wenzelm@40801
  1062
* Document antiquotation @{file} checks file/directory entries within
wenzelm@40801
  1063
the local file system.
haftmann@39305
  1064
ballarin@38110
  1065
haftmann@37387
  1066
*** HOL ***
haftmann@37387
  1067
wenzelm@41594
  1068
* Coercive subtyping: functions can be declared as coercions and type
wenzelm@41594
  1069
inference will add them as necessary upon input of a term.  Theory
wenzelm@41594
  1070
Complex_Main declares real :: nat => real and real :: int => real as
wenzelm@41594
  1071
coercions. A coercion function f is declared like this:
wenzelm@40939
  1072
wenzelm@40939
  1073
  declare [[coercion f]]
nipkow@40866
  1074
wenzelm@41571
  1075
To lift coercions through type constructors (e.g. from nat => real to
nipkow@40866
  1076
nat list => real list), map functions can be declared, e.g.
nipkow@40866
  1077
wenzelm@40939
  1078
  declare [[coercion_map map]]
wenzelm@40939
  1079
wenzelm@40939
  1080
Currently coercion inference is activated only in theories including
wenzelm@40939
  1081
real numbers, i.e. descendants of Complex_Main.  This is controlled by
wenzelm@41020
  1082
the configuration option "coercion_enabled", e.g. it can be enabled in
wenzelm@40939
  1083
other theories like this:
wenzelm@40939
  1084
wenzelm@40939
  1085
  declare [[coercion_enabled]]
nipkow@40866
  1086
wenzelm@41571
  1087
* Command 'partial_function' provides basic support for recursive
wenzelm@41571
  1088
function definitions over complete partial orders.  Concrete instances
krauss@40183
  1089
are provided for i) the option type, ii) tail recursion on arbitrary
wenzelm@41571
  1090
types, and iii) the heap monad of Imperative_HOL.  See
wenzelm@41571
  1091
src/HOL/ex/Fundefs.thy and src/HOL/Imperative_HOL/ex/Linked_Lists.thy
wenzelm@41571
  1092
for examples.
krauss@40183
  1093
wenzelm@41571
  1094
* Function package: f.psimps rules are no longer implicitly declared
wenzelm@41571
  1095
as [simp].  INCOMPATIBILITY.
haftmann@41398
  1096
haftmann@41398
  1097
* Datatype package: theorems generated for executable equality (class
wenzelm@41571
  1098
"eq") carry proper names and are treated as default code equations.
wenzelm@41571
  1099
wenzelm@41594
  1100
* Inductive package: now offers command 'inductive_simps' to
wenzelm@41594
  1101
automatically derive instantiated and simplified equations for
wenzelm@41594
  1102
inductive predicates, similar to 'inductive_cases'.
wenzelm@41594
  1103
wenzelm@41571
  1104
* Command 'enriched_type' allows to register properties of the
wenzelm@41571
  1105
functorial structure of types.
haftmann@39771
  1106
haftmann@39644
  1107
* Improved infrastructure for term evaluation using code generator
haftmann@39644
  1108
techniques, in particular static evaluation conversions.
haftmann@39644
  1109
wenzelm@41594
  1110
* Code generator: Scala (2.8 or higher) has been added to the target
wenzelm@41594
  1111
languages.
wenzelm@41594
  1112
haftmann@41398
  1113
* Code generator: globbing constant expressions "*" and "Theory.*"
haftmann@41398
  1114
have been replaced by the more idiomatic "_" and "Theory._".
haftmann@41398
  1115
INCOMPATIBILITY.
haftmann@41398
  1116
haftmann@41398
  1117
* Code generator: export_code without explicit file declaration prints
haftmann@41398
  1118
to standard output.  INCOMPATIBILITY.
haftmann@41398
  1119
haftmann@41398
  1120
* Code generator: do not print function definitions for case
haftmann@41398
  1121
combinators any longer.
haftmann@41398
  1122
wenzelm@41594
  1123
* Code generator: simplification with rules determined with
wenzelm@41571
  1124
src/Tools/Code/code_simp.ML and method "code_simp".
wenzelm@41571
  1125
wenzelm@41594
  1126
* Code generator for records: more idiomatic representation of record
wenzelm@40948
  1127
types.  Warning: records are not covered by ancient SML code
wenzelm@40948
  1128
generation any longer.  INCOMPATIBILITY.  In cases of need, a suitable
wenzelm@40948
  1129
rep_datatype declaration helps to succeed then:
haftmann@38537
  1130
haftmann@38537
  1131
  record 'a foo = ...
haftmann@38537
  1132
  ...
haftmann@38537
  1133
  rep_datatype foo_ext ...
haftmann@38535
  1134
wenzelm@41594
  1135
* Records: logical foundation type for records does not carry a
wenzelm@41594
  1136
'_type' suffix any longer (obsolete due to authentic syntax).
wenzelm@41594
  1137
INCOMPATIBILITY.
wenzelm@41594
  1138
haftmann@41398
  1139
* Quickcheck now by default uses exhaustive testing instead of random
wenzelm@41571
  1140
testing.  Random testing can be invoked by "quickcheck [random]",
wenzelm@41571
  1141
exhaustive testing by "quickcheck [exhaustive]".
haftmann@41398
  1142
haftmann@41398
  1143
* Quickcheck instantiates polymorphic types with small finite
haftmann@41398
  1144
datatypes by default. This enables a simple execution mechanism to
haftmann@41398
  1145
handle quantifiers and function equality over the finite datatypes.
haftmann@41398
  1146
wenzelm@41571
  1147
* Quickcheck random generator has been renamed from "code" to
wenzelm@41571
  1148
"random".  INCOMPATIBILITY.
haftmann@41398
  1149
haftmann@41398
  1150
* Quickcheck now has a configurable time limit which is set to 30
haftmann@41398
  1151
seconds by default. This can be changed by adding [timeout = n] to the
haftmann@41398
  1152
quickcheck command. The time limit for Auto Quickcheck is still set
haftmann@41398
  1153
independently.
haftmann@38461
  1154
haftmann@38461
  1155
* Quickcheck in locales considers interpretations of that locale for
haftmann@38461
  1156
counter example search.
haftmann@38461
  1157
blanchet@40059
  1158
* Sledgehammer:
wenzelm@41571
  1159
  - Added "smt" and "remote_smt" provers based on the "smt" proof
wenzelm@41571
  1160
    method. See the Sledgehammer manual for details ("isabelle doc
wenzelm@41571
  1161
    sledgehammer").
blanchet@40059
  1162
  - Renamed commands:
blanchet@40059
  1163
    sledgehammer atp_info ~> sledgehammer running_provers
blanchet@40059
  1164
    sledgehammer atp_kill ~> sledgehammer kill_provers
blanchet@40059
  1165
    sledgehammer available_atps ~> sledgehammer available_provers
blanchet@40059
  1166
    INCOMPATIBILITY.
blanchet@40059
  1167
  - Renamed options:
blanchet@40059
  1168
    sledgehammer [atps = ...] ~> sledgehammer [provers = ...]
blanchet@40062
  1169
    sledgehammer [atp = ...] ~> sledgehammer [prover = ...]
blanchet@40341
  1170
    sledgehammer [timeout = 77 s] ~> sledgehammer [timeout = 77]
blanchet@40341
  1171
    (and "ms" and "min" are no longer supported)
blanchet@40341
  1172
    INCOMPATIBILITY.
blanchet@40341
  1173
blanchet@40341
  1174
* Nitpick:
blanchet@40341
  1175
  - Renamed options:
blanchet@40341
  1176
    nitpick [timeout = 77 s] ~> nitpick [timeout = 77]
blanchet@40341
  1177
    nitpick [tac_timeout = 777 ms] ~> nitpick [tac_timeout = 0.777]
blanchet@40059
  1178
    INCOMPATIBILITY.
blanchet@40725
  1179
  - Added support for partial quotient types.
blanchet@40725
  1180
  - Added local versions of the "Nitpick.register_xxx" functions.
blanchet@40725
  1181
  - Added "whack" option.
blanchet@40725
  1182
  - Allow registration of quotient types as codatatypes.
blanchet@40725
  1183
  - Improved "merge_type_vars" option to merge more types.
blanchet@40725
  1184
  - Removed unsound "fast_descrs" option.
blanchet@40725
  1185
  - Added custom symmetry breaking for datatypes, making it possible to reach
blanchet@40725
  1186
    higher cardinalities.
blanchet@40725
  1187
  - Prevent the expansion of too large definitions.
blanchet@39957
  1188
wenzelm@41571
  1189
* Proof methods "metis" and "meson" now have configuration options
wenzelm@41571
  1190
"meson_trace", "metis_trace", and "metis_verbose" that can be enabled
wenzelm@41571
  1191
to diagnose these tools. E.g.
wenzelm@41571
  1192
wenzelm@41571
  1193
    using [[metis_trace = true]]
wenzelm@41571
  1194
haftmann@41398
  1195
* Auto Solve: Renamed "Auto Solve Direct".  The tool is now available
haftmann@41398
  1196
manually as command 'solve_direct'.
haftmann@41398
  1197
boehmes@41601
  1198
* The default SMT solver Z3 must be enabled explicitly (due to
boehmes@41601
  1199
licensing issues) by setting the environment variable
wenzelm@41603
  1200
Z3_NON_COMMERCIAL in etc/settings of the component, for example.  For
wenzelm@41603
  1201
commercial applications, the SMT solver CVC3 is provided as fall-back;
wenzelm@41603
  1202
changing the SMT solver is done via the configuration option
wenzelm@41603
  1203
"smt_solver".
boehmes@41432
  1204
boehmes@41432
  1205
* Remote SMT solvers need to be referred to by the "remote_" prefix,
wenzelm@41571
  1206
i.e. "remote_cvc3" and "remote_z3".
wenzelm@41571
  1207
wenzelm@41571
  1208
* Added basic SMT support for datatypes, records, and typedefs using
wenzelm@41571
  1209
the oracle mode (no proofs).  Direct support of pairs has been dropped
wenzelm@41571
  1210
in exchange (pass theorems fst_conv snd_conv pair_collapse to the SMT
wenzelm@41571
  1211
support for a similar behavior).  Minor INCOMPATIBILITY.
boehmes@41432
  1212
boehmes@40162
  1213
* Changed SMT configuration options:
boehmes@40162
  1214
  - Renamed:
boehmes@41432
  1215
    z3_proofs ~> smt_oracle (with inverted meaning)
boehmes@40162
  1216
    z3_trace_assms ~> smt_trace_used_facts
boehmes@40162
  1217
    INCOMPATIBILITY.
boehmes@40162
  1218
  - Added:
boehmes@40424
  1219
    smt_verbose
boehmes@41432
  1220
    smt_random_seed
boehmes@40424
  1221
    smt_datatypes
boehmes@41432
  1222
    smt_infer_triggers
boehmes@41432
  1223
    smt_monomorph_limit
boehmes@40162
  1224
    cvc3_options
boehmes@41432
  1225
    remote_cvc3_options
boehmes@41432
  1226
    remote_z3_options
boehmes@40162
  1227
    yices_options
blanchet@39957
  1228
wenzelm@40948
  1229
* Boogie output files (.b2i files) need to be declared in the theory
wenzelm@40948
  1230
header.
boehmes@40580
  1231
wenzelm@41594
  1232
* Simplification procedure "list_to_set_comprehension" rewrites list
wenzelm@41594
  1233
comprehensions applied to List.set to set comprehensions.  Occasional
wenzelm@41594
  1234
INCOMPATIBILITY, may be deactivated like this:
wenzelm@41594
  1235
wenzelm@41594
  1236
  declare [[simproc del: list_to_set_comprehension]]
wenzelm@41594
  1237
wenzelm@41573
  1238
* Removed old version of primrec package.  INCOMPATIBILITY.
haftmann@41398
  1239
haftmann@41398
  1240
* Removed simplifier congruence rule of "prod_case", as has for long
haftmann@41398
  1241
been the case with "split".  INCOMPATIBILITY.
haftmann@41398
  1242
haftmann@41398
  1243
* String.literal is a type, but not a datatype.  INCOMPATIBILITY.
haftmann@41398
  1244
krauss@40388
  1245
* Removed [split_format ... and ... and ...] version of
krauss@40388
  1246
[split_format].  Potential INCOMPATIBILITY.
krauss@40388
  1247
wenzelm@41571
  1248
* Predicate "sorted" now defined inductively, with nice induction
wenzelm@41571
  1249
rules.  INCOMPATIBILITY: former sorted.simps now named sorted_simps.
haftmann@41398
  1250
haftmann@41398
  1251
* Constant "contents" renamed to "the_elem", to free the generic name
haftmann@41398
  1252
contents for other uses.  INCOMPATIBILITY.
haftmann@41398
  1253
haftmann@41398
  1254
* Renamed class eq and constant eq (for code generation) to class
haftmann@41398
  1255
equal and constant equal, plus renaming of related facts and various
haftmann@41398
  1256
tuning.  INCOMPATIBILITY.
haftmann@41398
  1257
haftmann@41398
  1258
* Dropped type classes mult_mono and mult_mono1.  INCOMPATIBILITY.
haftmann@41398
  1259
wenzelm@41571
  1260
* Removed output syntax "'a ~=> 'b" for "'a => 'b option".
wenzelm@41571
  1261
INCOMPATIBILITY.
haftmann@41398
  1262
haftmann@41398
  1263
* Renamed theory Fset to Cset, type Fset.fset to Cset.set, in order to
haftmann@41398
  1264
avoid confusion with finite sets.  INCOMPATIBILITY.
haftmann@41398
  1265
haftmann@41398
  1266
* Abandoned locales equiv, congruent and congruent2 for equivalence
haftmann@41398
  1267
relations.  INCOMPATIBILITY: use equivI rather than equiv_intro (same
haftmann@41398
  1268
for congruent(2)).
haftmann@41398
  1269
haftmann@41398
  1270
* Some previously unqualified names have been qualified:
haftmann@41398
  1271
haftmann@41398
  1272
  types
haftmann@41398
  1273
    bool ~> HOL.bool
haftmann@41398
  1274
    nat ~> Nat.nat
haftmann@41398
  1275
haftmann@41398
  1276
  constants
haftmann@41398
  1277
    Trueprop ~> HOL.Trueprop
haftmann@41398
  1278
    True ~> HOL.True
haftmann@41398
  1279
    False ~> HOL.False
haftmann@41398
  1280
    op & ~> HOL.conj
haftmann@41398
  1281
    op | ~> HOL.disj
haftmann@41398
  1282
    op --> ~> HOL.implies
haftmann@41398
  1283
    op = ~> HOL.eq
haftmann@41398
  1284
    Not ~> HOL.Not
haftmann@41398
  1285
    The ~> HOL.The
haftmann@41398
  1286
    All ~> HOL.All
haftmann@41398
  1287
    Ex ~> HOL.Ex
haftmann@41398
  1288
    Ex1 ~> HOL.Ex1
haftmann@41398
  1289
    Let ~> HOL.Let
haftmann@41398
  1290
    If ~> HOL.If
haftmann@41398
  1291
    Ball ~> Set.Ball
haftmann@41398
  1292
    Bex ~> Set.Bex
haftmann@41398
  1293
    Suc ~> Nat.Suc
haftmann@41398
  1294
    Pair ~> Product_Type.Pair
haftmann@41398
  1295
    fst ~> Product_Type.fst
haftmann@41398
  1296
    snd ~> Product_Type.snd
haftmann@41398
  1297
    curry ~> Product_Type.curry
haftmann@41398
  1298
    op : ~> Set.member
haftmann@41398
  1299
    Collect ~> Set.Collect
haftmann@41398
  1300
haftmann@41398
  1301
INCOMPATIBILITY.
haftmann@41398
  1302
haftmann@41398
  1303
* More canonical naming convention for some fundamental definitions:
haftmann@41398
  1304
haftmann@41398
  1305
    bot_bool_eq ~> bot_bool_def
haftmann@41398
  1306
    top_bool_eq ~> top_bool_def
haftmann@41398
  1307
    inf_bool_eq ~> inf_bool_def
haftmann@41398
  1308
    sup_bool_eq ~> sup_bool_def
haftmann@41398
  1309
    bot_fun_eq  ~> bot_fun_def
haftmann@41398
  1310
    top_fun_eq  ~> top_fun_def
haftmann@41398
  1311
    inf_fun_eq  ~> inf_fun_def
haftmann@41398
  1312
    sup_fun_eq  ~> sup_fun_def
haftmann@41398
  1313
haftmann@41398
  1314
INCOMPATIBILITY.
haftmann@41398
  1315
haftmann@41398
  1316
* More stylized fact names:
haftmann@41398
  1317
haftmann@41398
  1318
  expand_fun_eq ~> fun_eq_iff
haftmann@41398
  1319
  expand_set_eq ~> set_eq_iff
haftmann@41398
  1320
  set_ext       ~> set_eqI
haftmann@41398
  1321
  nat_number    ~> eval_nat_numeral
haftmann@41398
  1322
haftmann@41398
  1323
INCOMPATIBILITY.
haftmann@41398
  1324
wenzelm@41571
  1325
* Refactoring of code-generation specific operations in theory List:
haftmann@41398
  1326
haftmann@41398
  1327
  constants
haftmann@41398
  1328
    null ~> List.null
haftmann@41398
  1329
haftmann@41398
  1330
  facts
haftmann@41398
  1331
    mem_iff ~> member_def
haftmann@41398
  1332
    null_empty ~> null_def
haftmann@41398
  1333
haftmann@41398
  1334
INCOMPATIBILITY.  Note that these were not supposed to be used
haftmann@41398
  1335
regularly unless for striking reasons; their main purpose was code
haftmann@41398
  1336
generation.
haftmann@41398
  1337
haftmann@41398
  1338
Various operations from the Haskell prelude are used for generating
haftmann@41398
  1339
Haskell code.
haftmann@41398
  1340
wenzelm@41571
  1341
* Term "bij f" is now an abbreviation of "bij_betw f UNIV UNIV".  Term
wenzelm@41571
  1342
"surj f" is now an abbreviation of "range f = UNIV".  The theorems
wenzelm@41571
  1343
bij_def and surj_def are unchanged.  INCOMPATIBILITY.
haftmann@41398
  1344
haftmann@41398
  1345
* Abolished some non-alphabetic type names: "prod" and "sum" replace
haftmann@41398
  1346
"*" and "+" respectively.  INCOMPATIBILITY.
haftmann@41398
  1347
haftmann@41398
  1348
* Name "Plus" of disjoint sum operator "<+>" is now hidden.  Write
wenzelm@41571
  1349
"Sum_Type.Plus" instead.
haftmann@41398
  1350
haftmann@41398
  1351
* Constant "split" has been merged with constant "prod_case"; names of
haftmann@41398
  1352
ML functions, facts etc. involving split have been retained so far,
haftmann@41398
  1353
though.  INCOMPATIBILITY.
haftmann@41398
  1354
haftmann@41398
  1355
* Dropped old infix syntax "_ mem _" for List.member; use "_ : set _"
haftmann@41398
  1356
instead.  INCOMPATIBILITY.
haftmann@41398
  1357
wenzelm@41571
  1358
* Removed lemma "Option.is_none_none" which duplicates "is_none_def".
haftmann@41398
  1359
INCOMPATIBILITY.
haftmann@41398
  1360
wenzelm@41594
  1361
* Former theory Library/Enum is now part of the HOL-Main image.
wenzelm@41594
  1362
INCOMPATIBILITY: all constants of the Enum theory now have to be
wenzelm@41594
  1363
referred to by its qualified name.
wenzelm@41594
  1364
wenzelm@41594
  1365
  enum    ~>  Enum.enum
wenzelm@41594
  1366
  nlists  ~>  Enum.nlists
wenzelm@41594
  1367
  product ~>  Enum.product
wenzelm@41594
  1368
wenzelm@41594
  1369
* Theory Library/Monad_Syntax provides do-syntax for monad types.
wenzelm@41594
  1370
Syntax in Library/State_Monad has been changed to avoid ambiguities.
wenzelm@41594
  1371
INCOMPATIBILITY.
wenzelm@41594
  1372
wenzelm@41594
  1373
* Theory Library/SetsAndFunctions has been split into
wenzelm@41594
  1374
Library/Function_Algebras and Library/Set_Algebras; canonical names
wenzelm@41594
  1375
for instance definitions for functions; various improvements.
wenzelm@41594
  1376
INCOMPATIBILITY.
wenzelm@41594
  1377
wenzelm@41594
  1378
* Theory Library/Multiset provides stable quicksort implementation of
wenzelm@41594
  1379
sort_key.
wenzelm@41594
  1380
wenzelm@41594
  1381
* Theory Library/Multiset: renamed empty_idemp ~> empty_neutral.
wenzelm@41594
  1382
INCOMPATIBILITY.
wenzelm@41594
  1383
wenzelm@41594
  1384
* Session Multivariate_Analysis: introduced a type class for euclidean
wenzelm@41594
  1385
space.  Most theorems are now stated in terms of euclidean spaces
wenzelm@41594
  1386
instead of finite cartesian products.
wenzelm@41594
  1387
wenzelm@41594
  1388
  types
wenzelm@41594
  1389
    real ^ 'n ~>  'a::real_vector
wenzelm@41594
  1390
              ~>  'a::euclidean_space
wenzelm@41594
  1391
              ~>  'a::ordered_euclidean_space
wenzelm@41594
  1392
        (depends on your needs)
wenzelm@41594
  1393
wenzelm@41594
  1394
  constants
wenzelm@41594
  1395
     _ $ _        ~> _ $$ _
wenzelm@41594
  1396
     \<chi> x. _  ~> \<chi>\<chi> x. _
wenzelm@41594
  1397
     CARD('n)     ~> DIM('a)
wenzelm@41594
  1398
wenzelm@41594
  1399
Also note that the indices are now natural numbers and not from some
wenzelm@41594
  1400
finite type. Finite cartesian products of euclidean spaces, products
wenzelm@41594
  1401
of euclidean spaces the real and complex numbers are instantiated to
wenzelm@41594
  1402
be euclidean_spaces.  INCOMPATIBILITY.
wenzelm@41594
  1403
wenzelm@41594
  1404
* Session Probability: introduced pextreal as positive extended real
wenzelm@41594
  1405
numbers.  Use pextreal as value for measures.  Introduce the
wenzelm@41594
  1406
Radon-Nikodym derivative, product spaces and Fubini's theorem for
wenzelm@41594
  1407
arbitrary sigma finite measures.  Introduces Lebesgue measure based on
wenzelm@41594
  1408
the integral in Multivariate Analysis.  INCOMPATIBILITY.
wenzelm@41594
  1409
wenzelm@41594
  1410
* Session Imperative_HOL: revamped, corrected dozens of inadequacies.
wenzelm@41594
  1411
INCOMPATIBILITY.
wenzelm@41594
  1412
wenzelm@41594
  1413
* Session SPARK (with image HOL-SPARK) provides commands to load and
wenzelm@41594
  1414
prove verification conditions generated by the SPARK Ada program
wenzelm@41594
  1415
verifier.  See also src/HOL/SPARK and src/HOL/SPARK/Examples.
berghofe@41567
  1416
huffman@40621
  1417
ballarin@41433
  1418
*** HOL-Algebra ***
ballarin@41433
  1419
ballarin@41433
  1420
* Theorems for additive ring operations (locale abelian_monoid and
ballarin@41433
  1421
descendants) are generated by interpretation from their multiplicative
ballarin@41434
  1422
counterparts.  Names (in particular theorem names) have the mandatory
ballarin@41434
  1423
qualifier 'add'.  Previous theorem names are redeclared for
ballarin@41434
  1424
compatibility.
ballarin@41434
  1425
wenzelm@41571
  1426
* Structure "int_ring" is now an abbreviation (previously a
ballarin@41434
  1427
definition).  This fits more natural with advanced interpretations.
ballarin@41433
  1428
ballarin@41433
  1429
huffman@40621
  1430
*** HOLCF ***
huffman@40621
  1431
huffman@40621
  1432
* The domain package now runs in definitional mode by default: The
wenzelm@41571
  1433
former command 'new_domain' is now called 'domain'.  To use the domain
huffman@40621
  1434
package in its original axiomatic mode, use 'domain (unsafe)'.
huffman@40621
  1435
INCOMPATIBILITY.
huffman@40621
  1436
wenzelm@41571
  1437
* The new class "domain" is now the default sort.  Class "predomain"
wenzelm@41571
  1438
is an unpointed version of "domain". Theories can be updated by
wenzelm@41571
  1439
replacing sort annotations as shown below.  INCOMPATIBILITY.
huffman@40621
  1440
huffman@40621
  1441
  'a::type ~> 'a::countable
huffman@40621
  1442
  'a::cpo  ~> 'a::predomain
huffman@40621
  1443
  'a::pcpo ~> 'a::domain
huffman@40621
  1444
wenzelm@41571
  1445
* The old type class "rep" has been superseded by class "domain".
huffman@40621
  1446
Accordingly, users of the definitional package must remove any
wenzelm@41571
  1447
"default_sort rep" declarations.  INCOMPATIBILITY.
huffman@40621
  1448
huffman@41401
  1449
* The domain package (definitional mode) now supports unpointed
huffman@41401
  1450
predomain argument types, as long as they are marked 'lazy'. (Strict
wenzelm@41571
  1451
arguments must be in class "domain".) For example, the following
huffman@41401
  1452
domain definition now works:
huffman@41401
  1453
huffman@41401
  1454
  domain natlist = nil | cons (lazy "nat discr") (lazy "natlist")
huffman@41401
  1455
huffman@41401
  1456
* Theory HOLCF/Library/HOL_Cpo provides cpo and predomain class
wenzelm@41571
  1457
instances for types from main HOL: bool, nat, int, char, 'a + 'b,
wenzelm@41571
  1458
'a option, and 'a list.  Additionally, it configures fixrec and the
wenzelm@41571
  1459
domain package to work with these types.  For example:
huffman@41401
  1460
huffman@41401
  1461
  fixrec isInl :: "('a + 'b) u -> tr"
huffman@41401
  1462
    where "isInl$(up$(Inl x)) = TT" | "isInl$(up$(Inr y)) = FF"
huffman@41401
  1463
huffman@41401
  1464
  domain V = VFun (lazy "V -> V") | VCon (lazy "nat") (lazy "V list")
huffman@41401
  1465
wenzelm@41571
  1466
* The "(permissive)" option of fixrec has been replaced with a
wenzelm@41571
  1467
per-equation "(unchecked)" option. See
wenzelm@41571
  1468
src/HOL/HOLCF/Tutorial/Fixrec_ex.thy for examples. INCOMPATIBILITY.
wenzelm@41571
  1469
wenzelm@41571
  1470
* The "bifinite" class no longer fixes a constant "approx"; the class
wenzelm@41571
  1471
now just asserts that such a function exists.  INCOMPATIBILITY.
wenzelm@41571
  1472
wenzelm@41571
  1473
* Former type "alg_defl" has been renamed to "defl".  HOLCF no longer
huffman@41287
  1474
defines an embedding of type 'a defl into udom by default; instances
wenzelm@41571
  1475
of "bifinite" and "domain" classes are available in
wenzelm@41571
  1476
src/HOL/HOLCF/Library/Defl_Bifinite.thy.
wenzelm@41571
  1477
wenzelm@41571
  1478
* The syntax "REP('a)" has been replaced with "DEFL('a)".
wenzelm@41571
  1479
wenzelm@41571
  1480
* The predicate "directed" has been removed.  INCOMPATIBILITY.
wenzelm@41571
  1481
wenzelm@41571
  1482
* The type class "finite_po" has been removed.  INCOMPATIBILITY.
wenzelm@41571
  1483
wenzelm@41571
  1484
* The function "cprod_map" has been renamed to "prod_map".
huffman@41401
  1485
INCOMPATIBILITY.
huffman@41401
  1486
huffman@41401
  1487
* The monadic bind operator on each powerdomain has new binder syntax
wenzelm@41571
  1488
similar to sets, e.g. "\<Union>\<sharp>x\<in>xs. t" represents
wenzelm@41571
  1489
"upper_bind\<cdot>xs\<cdot>(\<Lambda> x. t)".
huffman@41401
  1490
huffman@41401
  1491
* The infix syntax for binary union on each powerdomain has changed
wenzelm@41571
  1492
from e.g. "+\<sharp>" to "\<union>\<sharp>", for consistency with set
wenzelm@41571
  1493
syntax.  INCOMPATIBILITY.
wenzelm@41571
  1494
wenzelm@41571
  1495
* The constant "UU" has been renamed to "bottom".  The syntax "UU" is
huffman@41429
  1496
still supported as an input translation.
huffman@41429
  1497
huffman@40621
  1498
* Renamed some theorems (the original names are also still available).
wenzelm@41571
  1499
huffman@40621
  1500
  expand_fun_below   ~> fun_below_iff
huffman@40621
  1501
  below_fun_ext      ~> fun_belowI
huffman@40621
  1502
  expand_cfun_eq     ~> cfun_eq_iff
huffman@40621
  1503
  ext_cfun           ~> cfun_eqI
huffman@40621
  1504
  expand_cfun_below  ~> cfun_below_iff
huffman@40621
  1505
  below_cfun_ext     ~> cfun_belowI
huffman@40621
  1506
  cont2cont_Rep_CFun ~> cont2cont_APP
huffman@40621
  1507
huffman@40621
  1508
* The Abs and Rep functions for various types have changed names.
wenzelm@40948
  1509
Related theorem names have also changed to match. INCOMPATIBILITY.
wenzelm@41571
  1510
huffman@40621
  1511
  Rep_CFun  ~> Rep_cfun
huffman@40621
  1512
  Abs_CFun  ~> Abs_cfun
huffman@40621
  1513
  Rep_Sprod ~> Rep_sprod
huffman@40621
  1514
  Abs_Sprod ~> Abs_sprod
huffman@40621
  1515
  Rep_Ssum  ~> Rep_ssum
huffman@40621
  1516
  Abs_Ssum  ~> Abs_ssum
huffman@40621
  1517
huffman@40621
  1518
* Lemmas with names of the form *_defined_iff or *_strict_iff have
wenzelm@41571
  1519
been renamed to *_bottom_iff.  INCOMPATIBILITY.
huffman@40621
  1520
huffman@40621
  1521
* Various changes to bisimulation/coinduction with domain package:
wenzelm@41571
  1522
wenzelm@41571
  1523
  - Definitions of "bisim" constants no longer mention definedness.
wenzelm@41571
  1524
  - With mutual recursion, "bisim" predicate is now curried.
huffman@40621
  1525
  - With mutual recursion, each type gets a separate coind theorem.
huffman@40621
  1526
  - Variable names in bisim_def and coinduct rules have changed.
wenzelm@41571
  1527
huffman@40621
  1528
INCOMPATIBILITY.
huffman@40621
  1529
wenzelm@41571
  1530
* Case combinators generated by the domain package for type "foo" are
wenzelm@41571
  1531
now named "foo_case" instead of "foo_when".  INCOMPATIBILITY.
huffman@40621
  1532
huffman@40771
  1533
* Several theorems have been renamed to more accurately reflect the
wenzelm@41571
  1534
names of constants and types involved.  INCOMPATIBILITY.
wenzelm@41571
  1535
huffman@40771
  1536
  thelub_const    ~> lub_const
huffman@40771
  1537
  lub_const       ~> is_lub_const
huffman@40771
  1538
  thelubI         ~> lub_eqI
huffman@40771
  1539
  is_lub_lub      ~> is_lubD2
huffman@40771
  1540
  lubI            ~> is_lub_lub
huffman@40771
  1541
  unique_lub      ~> is_lub_unique
huffman@40771
  1542
  is_ub_lub       ~> is_lub_rangeD1
huffman@40771
  1543
  lub_bin_chain   ~> is_lub_bin_chain
huffman@41030
  1544
  lub_fun         ~> is_lub_fun
huffman@41030
  1545
  thelub_fun      ~> lub_fun
huffman@41031
  1546
  thelub_cfun     ~> lub_cfun
huffman@40771
  1547
  thelub_Pair     ~> lub_Pair
huffman@40771
  1548
  lub_cprod       ~> is_lub_prod
huffman@40771
  1549
  thelub_cprod    ~> lub_prod
huffman@40771
  1550
  minimal_cprod   ~> minimal_prod
huffman@40771
  1551
  inst_cprod_pcpo ~> inst_prod_pcpo
huffman@41430
  1552
  UU_I            ~> bottomI
huffman@41430
  1553
  compact_UU      ~> compact_bottom
huffman@41430
  1554
  deflation_UU    ~> deflation_bottom
huffman@41430
  1555
  finite_deflation_UU ~> finite_deflation_bottom
huffman@40771
  1556
wenzelm@41571
  1557
* Many legacy theorem names have been discontinued.  INCOMPATIBILITY.
wenzelm@41571
  1558
huffman@40621
  1559
  sq_ord_less_eq_trans ~> below_eq_trans
huffman@40621
  1560
  sq_ord_eq_less_trans ~> eq_below_trans
huffman@40621
  1561
  refl_less            ~> below_refl
huffman@40621
  1562
  trans_less           ~> below_trans
huffman@40621
  1563
  antisym_less         ~> below_antisym
huffman@40621
  1564
  antisym_less_inverse ~> po_eq_conv [THEN iffD1]
huffman@40621
  1565
  box_less             ~> box_below
huffman@40621
  1566
  rev_trans_less       ~> rev_below_trans
huffman@40621
  1567
  not_less2not_eq      ~> not_below2not_eq
huffman@40621
  1568
  less_UU_iff          ~> below_UU_iff
huffman@40621
  1569
  flat_less_iff        ~> flat_below_iff
huffman@40621
  1570
  adm_less             ~> adm_below
huffman@40621
  1571
  adm_not_less         ~> adm_not_below
huffman@40621
  1572
  adm_compact_not_less ~> adm_compact_not_below
huffman@40621
  1573
  less_fun_def         ~> below_fun_def
huffman@40621
  1574
  expand_fun_less      ~> fun_below_iff
huffman@40621
  1575
  less_fun_ext         ~> fun_belowI
huffman@40621
  1576
  less_discr_def       ~> below_discr_def
huffman@40621
  1577
  discr_less_eq        ~> discr_below_eq
huffman@40621
  1578
  less_unit_def        ~> below_unit_def
huffman@40621
  1579
  less_cprod_def       ~> below_prod_def
huffman@40621
  1580
  prod_lessI           ~> prod_belowI
huffman@40621
  1581
  Pair_less_iff        ~> Pair_below_iff
huffman@40621
  1582
  fst_less_iff         ~> fst_below_iff
huffman@40621
  1583
  snd_less_iff         ~> snd_below_iff
huffman@40621
  1584
  expand_cfun_less     ~> cfun_below_iff
huffman@40621
  1585
  less_cfun_ext        ~> cfun_belowI
huffman@40621
  1586
  injection_less       ~> injection_below
huffman@40621
  1587
  less_up_def          ~> below_up_def
huffman@40621
  1588
  not_Iup_less         ~> not_Iup_below
huffman@40621
  1589
  Iup_less             ~> Iup_below
huffman@40621
  1590
  up_less              ~> up_below
huffman@40621
  1591
  Def_inject_less_eq   ~> Def_below_Def
huffman@40621
  1592
  Def_less_is_eq       ~> Def_below_iff
huffman@40621
  1593
  spair_less_iff       ~> spair_below_iff
huffman@40621
  1594
  less_sprod           ~> below_sprod
huffman@40621
  1595
  spair_less           ~> spair_below
huffman@40621
  1596
  sfst_less_iff        ~> sfst_below_iff
huffman@40621
  1597
  ssnd_less_iff        ~> ssnd_below_iff
huffman@40621
  1598
  fix_least_less       ~> fix_least_below
huffman@40621
  1599
  dist_less_one        ~> dist_below_one
huffman@40621
  1600
  less_ONE             ~> below_ONE
huffman@40621
  1601
  ONE_less_iff         ~> ONE_below_iff
huffman@40621
  1602
  less_sinlD           ~> below_sinlD
huffman@40621
  1603
  less_sinrD           ~> below_sinrD
huffman@40621
  1604
huffman@40621
  1605
wenzelm@40948
  1606
*** FOL and ZF ***
haftmann@38522
  1607
wenzelm@41310
  1608
* All constant names are now qualified internally and use proper
wenzelm@41310
  1609
identifiers, e.g. "IFOL.eq" instead of "op =".  INCOMPATIBILITY.
wenzelm@41310
  1610
haftmann@38522
  1611
wenzelm@37868
  1612
*** ML ***
wenzelm@37868
  1613
wenzelm@41594
  1614
* Antiquotation @{assert} inlines a function bool -> unit that raises
wenzelm@41594
  1615
Fail if the argument is false.  Due to inlining the source position of
wenzelm@41594
  1616
failed assertions is included in the error output.
wenzelm@41594
  1617
wenzelm@41594
  1618
* Discontinued antiquotation @{theory_ref}, which is obsolete since ML
wenzelm@41594
  1619
text is in practice always evaluated with a stable theory checkpoint.
wenzelm@41594
  1620
Minor INCOMPATIBILITY, use (Theory.check_thy @{theory}) instead.
wenzelm@41594
  1621
wenzelm@41594
  1622
* Antiquotation @{theory A} refers to theory A from the ancestry of
wenzelm@41594
  1623
the current context, not any accidental theory loader state as before.
wenzelm@41594
  1624
Potential INCOMPATIBILITY, subtle change in semantics.
wenzelm@41228
  1625
wenzelm@40956
  1626
* Syntax.pretty_priority (default 0) configures the required priority
wenzelm@40956
  1627
of pretty-printed output and thus affects insertion of parentheses.
wenzelm@40956
  1628
wenzelm@40959
  1629
* Syntax.default_root (default "any") configures the inner syntax
wenzelm@40959
  1630
category (nonterminal symbol) for parsing of terms.
wenzelm@40959
  1631
wenzelm@40722
  1632
* Former exception Library.UnequalLengths now coincides with
wenzelm@40722
  1633
ListPair.UnequalLengths.
wenzelm@40722
  1634
wenzelm@41594
  1635
* Renamed structure MetaSimplifier to Raw_Simplifier.  Note that the
wenzelm@41594
  1636
main functionality is provided by structure Simplifier.
wenzelm@41594
  1637
wenzelm@40627
  1638
* Renamed raw "explode" function to "raw_explode" to emphasize its
wenzelm@40627
  1639
meaning.  Note that internally to Isabelle, Symbol.explode is used in
wenzelm@40627
  1640
almost all situations.
wenzelm@40627
  1641
wenzelm@40318
  1642
* Discontinued obsolete function sys_error and exception SYS_ERROR.
wenzelm@40318
  1643
See implementation manual for further details on exceptions in
wenzelm@40318
  1644
Isabelle/ML.
wenzelm@40318
  1645
wenzelm@39616
  1646
* Renamed setmp_noncritical to Unsynchronized.setmp to emphasize its
wenzelm@39616
  1647
meaning.
wenzelm@39616
  1648
wenzelm@39557
  1649
* Renamed structure PureThy to Pure_Thy and moved most of its
wenzelm@39557
  1650
operations to structure Global_Theory, to emphasize that this is
wenzelm@39557
  1651
rarely-used global-only stuff.
wenzelm@39557
  1652
wenzelm@39513
  1653
* Discontinued Output.debug.  Minor INCOMPATIBILITY, use plain writeln
wenzelm@39513
  1654
instead (or tracing for high-volume output).
wenzelm@39513
  1655
wenzelm@38980
  1656
* Configuration option show_question_marks only affects regular pretty
wenzelm@38980
  1657
printing of types and terms, not raw Term.string_of_vname.
wenzelm@38980
  1658
wenzelm@39164
  1659
* ML_Context.thm and ML_Context.thms are no longer pervasive.  Rare
wenzelm@39164
  1660
INCOMPATIBILITY, superseded by static antiquotations @{thm} and
wenzelm@39164
  1661
@{thms} for most purposes.
wenzelm@39164
  1662
wenzelm@41594
  1663
* ML structure Unsynchronized is never opened, not even in Isar
wenzelm@38980
  1664
interaction mode as before.  Old Unsynchronized.set etc. have been
wenzelm@38980
  1665
discontinued -- use plain := instead.  This should be *rare* anyway,
wenzelm@38980
  1666
since modern tools always work via official context data, notably
wenzelm@38980
  1667
configuration options.
wenzelm@38980
  1668
wenzelm@39239
  1669
* Parallel and asynchronous execution requires special care concerning
wenzelm@39239
  1670
interrupts.  Structure Exn provides some convenience functions that
wenzelm@39239
  1671
avoid working directly with raw Interrupt.  User code must not absorb
wenzelm@39239
  1672
interrupts -- intermediate handling (for cleanup etc.) needs to be
wenzelm@39239
  1673
followed by re-raising of the original exception.  Another common
wenzelm@39239
  1674
source of mistakes are "handle _" patterns, which make the meaning of
wenzelm@39239
  1675
the program subject to physical effects of the environment.
wenzelm@39239
  1676
wenzelm@37868
  1677
wenzelm@37868
  1678
wenzelm@37144
  1679
New in Isabelle2009-2 (June 2010)
wenzelm@37144
  1680
---------------------------------
haftmann@33993
  1681
wenzelm@35260
  1682
*** General ***
wenzelm@35260
  1683
wenzelm@35436
  1684
* Authentic syntax for *all* logical entities (type classes, type
wenzelm@35436
  1685
constructors, term constants): provides simple and robust
wenzelm@35436
  1686
correspondence between formal entities and concrete syntax.  Within
wenzelm@35436
  1687
the parse tree / AST representations, "constants" are decorated by
wenzelm@35436
  1688
their category (class, type, const) and spelled out explicitly with
wenzelm@35436
  1689
their full internal name.
wenzelm@35436
  1690
wenzelm@35436
  1691
Substantial INCOMPATIBILITY concerning low-level syntax declarations
wenzelm@35436
  1692
and translations (translation rules and translation functions in ML).
wenzelm@35436
  1693
Some hints on upgrading:
wenzelm@35260
  1694
wenzelm@35260
  1695
  - Many existing uses of 'syntax' and 'translations' can be replaced
wenzelm@35436
  1696
    by more modern 'type_notation', 'notation' and 'abbreviation',
wenzelm@35436
  1697
    which are independent of this issue.
wenzelm@35260
  1698
wenzelm@35260
  1699
  - 'translations' require markup within the AST; the term syntax
wenzelm@35260
  1700
    provides the following special forms:
wenzelm@35260
  1701
wenzelm@35260
  1702
      CONST c   -- produces syntax version of constant c from context
wenzelm@35261
  1703
      XCONST c  -- literally c, checked as constant from context
wenzelm@35261
  1704
      c         -- literally c, if declared by 'syntax'
wenzelm@35261
  1705
wenzelm@35261
  1706
    Plain identifiers are treated as AST variables -- occasionally the
wenzelm@35261
  1707
    system indicates accidental variables via the error "rhs contains
wenzelm@35261
  1708
    extra variables".
wenzelm@35260
  1709
wenzelm@35436
  1710
    Type classes and type constructors are marked according to their
wenzelm@35436
  1711
    concrete syntax.  Some old translations rules need to be written
wenzelm@35436
  1712
    for the "type" category, using type constructor application
wenzelm@35436
  1713
    instead of pseudo-term application of the default category
wenzelm@35436
  1714
    "logic".
wenzelm@35436
  1715
wenzelm@35260
  1716
  - 'parse_translation' etc. in ML may use the following
wenzelm@35260
  1717
    antiquotations:
wenzelm@35260
  1718
wenzelm@35436
  1719
      @{class_syntax c}   -- type class c within parse tree / AST
wenzelm@35436
  1720
      @{term_syntax c}    -- type constructor c within parse tree / AST
wenzelm@35260
  1721
      @{const_syntax c}   -- ML version of "CONST c" above
wenzelm@35260
  1722
      @{syntax_const c}   -- literally c (checked wrt. 'syntax' declarations)
wenzelm@35260
  1723
wenzelm@35436
  1724
  - Literal types within 'typed_print_translations', i.e. those *not*
wenzelm@35436
  1725
    represented as pseudo-terms are represented verbatim.  Use @{class
wenzelm@35436
  1726
    c} or @{type_name c} here instead of the above syntax
wenzelm@35436
  1727
    antiquotations.
wenzelm@35436
  1728
wenzelm@35260
  1729
Note that old non-authentic syntax was based on unqualified base
wenzelm@35436
  1730
names, so all of the above "constant" names would coincide.  Recall
wenzelm@35436
  1731
that 'print_syntax' and ML_command "set Syntax.trace_ast" help to
wenzelm@35436
  1732
diagnose syntax problems.
wenzelm@35260
  1733
wenzelm@35351
  1734
* Type constructors admit general mixfix syntax, not just infix.
wenzelm@35351
  1735
wenzelm@36508
  1736
* Concrete syntax may be attached to local entities without a proof
wenzelm@36508
  1737
body, too.  This works via regular mixfix annotations for 'fix',
wenzelm@36508
  1738
'def', 'obtain' etc. or via the explicit 'write' command, which is
wenzelm@36508
  1739
similar to the 'notation' command in theory specifications.
wenzelm@36508
  1740
wenzelm@37351
  1741
* Discontinued unnamed infix syntax (legacy feature for many years) --
wenzelm@37351
  1742
need to specify constant name and syntax separately.  Internal ML
wenzelm@37351
  1743
datatype constructors have been renamed from InfixName to Infix etc.
wenzelm@37351
  1744
Minor INCOMPATIBILITY.
wenzelm@37351
  1745
wenzelm@37351
  1746
* Schematic theorem statements need to be explicitly markup as such,
wenzelm@37351
  1747
via commands 'schematic_lemma', 'schematic_theorem',
wenzelm@37351
  1748
'schematic_corollary'.  Thus the relevance of the proof is made
wenzelm@37351
  1749
syntactically clear, which impacts performance in a parallel or
wenzelm@37351
  1750
asynchronous interactive environment.  Minor INCOMPATIBILITY.
wenzelm@37351
  1751
wenzelm@35613
  1752
* Use of cumulative prems via "!" in some proof methods has been
wenzelm@37351
  1753
discontinued (old legacy feature).
wenzelm@35613
  1754
boehmes@35979
  1755
* References 'trace_simp' and 'debug_simp' have been replaced by
wenzelm@36857
  1756
configuration options stored in the context. Enabling tracing (the
wenzelm@36857
  1757
case of debugging is similar) in proofs works via
wenzelm@36857
  1758
wenzelm@36857
  1759
  using [[trace_simp = true]]
wenzelm@36857
  1760
wenzelm@36857
  1761
Tracing is then active for all invocations of the simplifier in
wenzelm@36857
  1762
subsequent goal refinement steps. Tracing may also still be enabled or
wenzelm@40780
  1763
disabled via the ProofGeneral settings menu.
boehmes@35979
  1764
wenzelm@36177
  1765
* Separate commands 'hide_class', 'hide_type', 'hide_const',
wenzelm@36177
  1766
'hide_fact' replace the former 'hide' KIND command.  Minor
wenzelm@36177
  1767
INCOMPATIBILITY.
wenzelm@36177
  1768
wenzelm@37298
  1769
* Improved parallelism of proof term normalization: usedir -p2 -q0 is
wenzelm@37298
  1770
more efficient than combinations with -q1 or -q2.
wenzelm@37298
  1771
wenzelm@35260
  1772
haftmann@34170
  1773
*** Pure ***
haftmann@34170
  1774
wenzelm@37351
  1775
* Proofterms record type-class reasoning explicitly, using the
wenzelm@37351
  1776
"unconstrain" operation internally.  This eliminates all sort
wenzelm@37351
  1777
constraints from a theorem and proof, introducing explicit
wenzelm@37351
  1778
OFCLASS-premises.  On the proof term level, this operation is
wenzelm@37351
  1779
automatically applied at theorem boundaries, such that closed proofs
wenzelm@37351
  1780
are always free of sort constraints.  INCOMPATIBILITY for tools that
wenzelm@37351
  1781
inspect proof terms.
haftmann@36147
  1782
wenzelm@35765
  1783
* Local theory specifications may depend on extra type variables that
wenzelm@35765
  1784
are not present in the result type -- arguments TYPE('a) :: 'a itself
wenzelm@35765
  1785
are added internally.  For example:
wenzelm@35765
  1786
wenzelm@35765
  1787
  definition unitary :: bool where "unitary = (ALL (x::'a) y. x = y)"
wenzelm@35765
  1788
wenzelm@37351
  1789
* Predicates of locales introduced by classes carry a mandatory
wenzelm@37351
  1790
"class" prefix.  INCOMPATIBILITY.
wenzelm@37351
  1791
wenzelm@37351
  1792
* Vacuous class specifications observe default sort.  INCOMPATIBILITY.
wenzelm@37351
  1793
wenzelm@37351
  1794
* Old 'axclass' command has been discontinued.  INCOMPATIBILITY, use
wenzelm@37351
  1795
'class' instead.
wenzelm@37351
  1796
wenzelm@37351
  1797
* Command 'code_reflect' allows to incorporate generated ML code into
wenzelm@37351
  1798
runtime environment; replaces immature code_datatype antiquotation.
wenzelm@37351
  1799
INCOMPATIBILITY.
wenzelm@37351
  1800
wenzelm@37351
  1801
* Code generator: simple concept for abstract datatypes obeying
wenzelm@37351
  1802
invariants.
wenzelm@37351
  1803
wenzelm@36857
  1804
* Code generator: details of internal data cache have no impact on the
wenzelm@36857
  1805
user space functionality any longer.
wenzelm@36857
  1806
wenzelm@37351
  1807
* Methods "unfold_locales" and "intro_locales" ignore non-locale
wenzelm@37351
  1808
subgoals.  This is more appropriate for interpretations with 'where'.
wenzelm@36857
  1809
INCOMPATIBILITY.
haftmann@34170
  1810
wenzelm@36356
  1811
* Command 'example_proof' opens an empty proof body.  This allows to
wenzelm@36356
  1812
experiment with Isar, without producing any persistent result.
wenzelm@36356
  1813
wenzelm@35413
  1814
* Commands 'type_notation' and 'no_type_notation' declare type syntax
wenzelm@35413
  1815
within a local theory context, with explicit checking of the
wenzelm@35413
  1816
constructors involved (in contrast to the raw 'syntax' versions).
wenzelm@35413
  1817
wenzelm@36178
  1818
* Commands 'types' and 'typedecl' now work within a local theory
wenzelm@36178
  1819
context -- without introducing dependencies on parameters or
wenzelm@36178
  1820
assumptions, which is not possible in Isabelle/Pure.
wenzelm@35681
  1821
wenzelm@36857
  1822
* Command 'defaultsort' has been renamed to 'default_sort', it works
wenzelm@36857
  1823
within a local theory context.  Minor INCOMPATIBILITY.
wenzelm@36454
  1824
haftmann@34170
  1825
haftmann@33993
  1826
*** HOL ***
haftmann@33993
  1827
wenzelm@37351
  1828
* Command 'typedef' now works within a local theory context -- without
wenzelm@37351
  1829
introducing dependencies on parameters or assumptions, which is not
wenzelm@37351
  1830
possible in Isabelle/Pure/HOL.  Note that the logical environment may
wenzelm@37351
  1831
contain multiple interpretations of local typedefs (with different
wenzelm@37351
  1832
non-emptiness proofs), even in a global theory context.
wenzelm@37351
  1833
wenzelm@37351
  1834
* New package for quotient types.  Commands 'quotient_type' and
wenzelm@37351
  1835
'quotient_definition' may be used for defining types and constants by
wenzelm@37351
  1836
quotient constructions.  An example is the type of integers created by
wenzelm@37351
  1837
quotienting pairs of natural numbers:
wenzelm@37380
  1838
wenzelm@37351
  1839
  fun
wenzelm@37380
  1840
    intrel :: "(nat * nat) => (nat * nat) => bool"
wenzelm@37351
  1841
  where
wenzelm@37351
  1842
    "intrel (x, y) (u, v) = (x + v = u + y)"
wenzelm@37351
  1843
wenzelm@37380
  1844
  quotient_type int = "nat * nat" / intrel
wenzelm@37351
  1845
    by (auto simp add: equivp_def expand_fun_eq)
wenzelm@37380
  1846
wenzelm@37351
  1847
  quotient_definition
wenzelm@37351
  1848
    "0::int" is "(0::nat, 0::nat)"
wenzelm@37351
  1849
wenzelm@37351
  1850
The method "lifting" can be used to lift of theorems from the
wenzelm@37351
  1851
underlying "raw" type to the quotient type.  The example
wenzelm@37351
  1852
src/HOL/Quotient_Examples/FSet.thy includes such a quotient
wenzelm@37351
  1853
construction and provides a reasoning infrastructure for finite sets.
wenzelm@37351
  1854
wenzelm@37351
  1855
* Renamed Library/Quotient.thy to Library/Quotient_Type.thy to avoid
wenzelm@37351
  1856
clash with new theory Quotient in Main HOL.
wenzelm@37351
  1857
wenzelm@37351
  1858
* Moved the SMT binding into the main HOL session, eliminating
wenzelm@37351
  1859
separate HOL-SMT session.
wenzelm@37351
  1860
haftmann@37020
  1861
* List membership infix mem operation is only an input abbreviation.
haftmann@37020
  1862
INCOMPATIBILITY.
haftmann@37020
  1863
wenzelm@37144
  1864
* Theory Library/Word.thy has been removed.  Use library Word/Word.thy
wenzelm@37144
  1865
for future developements; former Library/Word.thy is still present in
wenzelm@37144
  1866
the AFP entry RSAPPS.
haftmann@36963
  1867
wenzelm@36857
  1868
* Theorem Int.int_induct renamed to Int.int_of_nat_induct and is no
wenzelm@36857
  1869
longer shadowed.  INCOMPATIBILITY.
haftmann@36808
  1870
huffman@36836
  1871
* Dropped theorem duplicate comp_arith; use semiring_norm instead.
huffman@36836
  1872
INCOMPATIBILITY.
huffman@36836
  1873
huffman@36836
  1874
* Dropped theorem RealPow.real_sq_order; use power2_le_imp_le instead.
huffman@36836
  1875
INCOMPATIBILITY.
haftmann@36714
  1876
wenzelm@36857
  1877
* Dropped normalizing_semiring etc; use the facts in semiring classes
wenzelm@36857
  1878
instead.  INCOMPATIBILITY.
wenzelm@36857
  1879
huffman@36979
  1880
* Dropped several real-specific versions of lemmas about floor and
wenzelm@37351
  1881
ceiling; use the generic lemmas from theory "Archimedean_Field"
wenzelm@37351
  1882
instead.  INCOMPATIBILITY.
huffman@36979
  1883
huffman@36979
  1884
  floor_number_of_eq         ~> floor_number_of
huffman@36979
  1885
  le_floor_eq_number_of      ~> number_of_le_floor
huffman@36979
  1886
  le_floor_eq_zero           ~> zero_le_floor
huffman@36979
  1887
  le_floor_eq_one            ~> one_le_floor
huffman@36979
  1888
  floor_less_eq_number_of    ~> floor_less_number_of
huffman@36979
  1889
  floor_less_eq_zero         ~> floor_less_zero
huffman@36979
  1890
  floor_less_eq_one          ~> floor_less_one
huffman@36979
  1891
  less_floor_eq_number_of    ~> number_of_less_floor
huffman@36979
  1892
  less_floor_eq_zero         ~> zero_less_floor
huffman@36979
  1893
  less_floor_eq_one          ~> one_less_floor
huffman@36979
  1894
  floor_le_eq_number_of      ~> floor_le_number_of
huffman@36979
  1895
  floor_le_eq_zero           ~> floor_le_zero
huffman@36979
  1896
  floor_le_eq_one            ~> floor_le_one
huffman@36979
  1897
  floor_subtract_number_of   ~> floor_diff_number_of
huffman@36979
  1898
  floor_subtract_one         ~> floor_diff_one
huffman@36979
  1899
  ceiling_number_of_eq       ~> ceiling_number_of
huffman@36979
  1900
  ceiling_le_eq_number_of    ~> ceiling_le_number_of
huffman@36979
  1901
  ceiling_le_zero_eq         ~> ceiling_le_zero
huffman@36979
  1902
  ceiling_le_eq_one          ~> ceiling_le_one
huffman@36979
  1903
  less_ceiling_eq_number_of  ~> number_of_less_ceiling
huffman@36979
  1904
  less_ceiling_eq_zero       ~> zero_less_ceiling
huffman@36979
  1905
  less_ceiling_eq_one        ~> one_less_ceiling
huffman@36979
  1906
  ceiling_less_eq_number_of  ~> ceiling_less_number_of
huffman@36979
  1907
  ceiling_less_eq_zero       ~> ceiling_less_zero
huffman@36979
  1908
  ceiling_less_eq_one        ~> ceiling_less_one
huffman@36979
  1909
  le_ceiling_eq_number_of    ~> number_of_le_ceiling
huffman@36979
  1910
  le_ceiling_eq_zero         ~> zero_le_ceiling
huffman@36979
  1911
  le_ceiling_eq_one          ~> one_le_ceiling
huffman@36979
  1912
  ceiling_subtract_number_of ~> ceiling_diff_number_of
huffman@36979
  1913
  ceiling_subtract_one       ~> ceiling_diff_one
huffman@36979
  1914
wenzelm@37144
  1915
* Theory "Finite_Set": various folding_XXX locales facilitate the
wenzelm@36857
  1916
application of the various fold combinators on finite sets.
wenzelm@36857
  1917
wenzelm@36857
  1918
* Library theory "RBT" renamed to "RBT_Impl"; new library theory "RBT"
wenzelm@36857
  1919
provides abstract red-black tree type which is backed by "RBT_Impl" as
wenzelm@36857
  1920
implementation.  INCOMPATIBILTY.
haftmann@36147
  1921
huffman@36830
  1922
* Theory Library/Coinductive_List has been removed -- superseded by
wenzelm@35763
  1923
AFP/thys/Coinductive.
wenzelm@35763
  1924
huffman@36829
  1925
* Theory PReal, including the type "preal" and related operations, has
huffman@36829
  1926
been removed.  INCOMPATIBILITY.
huffman@36829
  1927
wenzelm@37380
  1928
* Real: new development using Cauchy Sequences.
wenzelm@37380
  1929
wenzelm@37351
  1930
* Split off theory "Big_Operators" containing setsum, setprod,
wenzelm@37351
  1931
Inf_fin, Sup_fin, Min, Max from theory Finite_Set.  INCOMPATIBILITY.
wenzelm@36857
  1932
wenzelm@36857
  1933
* Theory "Rational" renamed to "Rat", for consistency with "Nat",
wenzelm@36857
  1934
"Int" etc.  INCOMPATIBILITY.
wenzelm@36857
  1935
wenzelm@37351
  1936
* Constant Rat.normalize needs to be qualified.  INCOMPATIBILITY.
wenzelm@37143
  1937
wenzelm@36857
  1938
* New set of rules "ac_simps" provides combined assoc / commute
wenzelm@36857
  1939
rewrites for all interpretations of the appropriate generic locales.
wenzelm@36857
  1940
wenzelm@36857
  1941
* Renamed theory "OrderedGroup" to "Groups" and split theory
wenzelm@36857
  1942
"Ring_and_Field" into theories "Rings" and "Fields"; for more
wenzelm@36857
  1943
appropriate and more consistent names suitable for name prefixes
wenzelm@36857
  1944
within the HOL theories.  INCOMPATIBILITY.
haftmann@35050
  1945
haftmann@35084
  1946
* Some generic constants have been put to appropriate theories:
wenzelm@36857
  1947
  - less_eq, less: Orderings
wenzelm@36857
  1948
  - zero, one, plus, minus, uminus, times, abs, sgn: Groups
wenzelm@36857
  1949
  - inverse, divide: Rings
haftmann@35084
  1950
INCOMPATIBILITY.
haftmann@35084
  1951
wenzelm@36857
  1952
* More consistent naming of type classes involving orderings (and
wenzelm@36857
  1953
lattices):
haftmann@35027
  1954
haftmann@35027
  1955
    lower_semilattice                   ~> semilattice_inf
haftmann@35027
  1956
    upper_semilattice                   ~> semilattice_sup
haftmann@35027
  1957
haftmann@35027
  1958
    dense_linear_order                  ~> dense_linorder
haftmann@35027
  1959
haftmann@35027
  1960
    pordered_ab_group_add               ~> ordered_ab_group_add
haftmann@35027
  1961
    pordered_ab_group_add_abs           ~> ordered_ab_group_add_abs
haftmann@35027
  1962
    pordered_ab_semigroup_add           ~> ordered_ab_semigroup_add
haftmann@35027
  1963
    pordered_ab_semigroup_add_imp_le    ~> ordered_ab_semigroup_add_imp_le
haftmann@35027
  1964
    pordered_cancel_ab_semigroup_add    ~> ordered_cancel_ab_semigroup_add
haftmann@35027
  1965
    pordered_cancel_comm_semiring       ~> ordered_cancel_comm_semiring
haftmann@35027
  1966
    pordered_cancel_semiring            ~> ordered_cancel_semiring
haftmann@35027
  1967
    pordered_comm_monoid_add            ~> ordered_comm_monoid_add
haftmann@35027
  1968
    pordered_comm_ring                  ~> ordered_comm_ring
haftmann@35027
  1969
    pordered_comm_semiring              ~> ordered_comm_semiring
haftmann@35027
  1970
    pordered_ring                       ~> ordered_ring
haftmann@35027
  1971
    pordered_ring_abs                   ~> ordered_ring_abs
haftmann@35027
  1972
    pordered_semiring                   ~> ordered_semiring
haftmann@35027
  1973
haftmann@35027
  1974
    ordered_ab_group_add                ~> linordered_ab_group_add
haftmann@35027
  1975
    ordered_ab_semigroup_add            ~> linordered_ab_semigroup_add
haftmann@35027
  1976
    ordered_cancel_ab_semigroup_add     ~> linordered_cancel_ab_semigroup_add
haftmann@35027
  1977
    ordered_comm_semiring_strict        ~> linordered_comm_semiring_strict
haftmann@35027
  1978
    ordered_field                       ~> linordered_field
haftmann@35027
  1979
    ordered_field_no_lb                 ~> linordered_field_no_lb
haftmann@35027
  1980
    ordered_field_no_ub                 ~> linordered_field_no_ub
haftmann@35027
  1981
    ordered_field_dense_linear_order    ~> dense_linordered_field
haftmann@35027
  1982
    ordered_idom                        ~> linordered_idom
haftmann@35027
  1983
    ordered_ring                        ~> linordered_ring
haftmann@35027
  1984
    ordered_ring_le_cancel_factor       ~> linordered_ring_le_cancel_factor
haftmann@35027
  1985
    ordered_ring_less_cancel_factor     ~> linordered_ring_less_cancel_factor
haftmann@35027
  1986
    ordered_ring_strict                 ~> linordered_ring_strict
haftmann@35027
  1987
    ordered_semidom                     ~> linordered_semidom
haftmann@35027
  1988
    ordered_semiring                    ~> linordered_semiring
haftmann@35027
  1989
    ordered_semiring_1                  ~> linordered_semiring_1
haftmann@35027
  1990
    ordered_semiring_1_strict           ~> linordered_semiring_1_strict
haftmann@35027
  1991
    ordered_semiring_strict             ~> linordered_semiring_strict
haftmann@35027
  1992
wenzelm@36857
  1993
  The following slightly odd type classes have been moved to a
wenzelm@37351
  1994
  separate theory Library/Lattice_Algebras:
haftmann@35032
  1995
haftmann@35032
  1996
    lordered_ab_group_add               ~> lattice_ab_group_add
haftmann@35032
  1997
    lordered_ab_group_add_abs           ~> lattice_ab_group_add_abs
haftmann@35032
  1998
    lordered_ab_group_add_meet          ~> semilattice_inf_ab_group_add
haftmann@35032
  1999
    lordered_ab_group_add_join          ~> semilattice_sup_ab_group_add
haftmann@35032
  2000
    lordered_ring                       ~> lattice_ring
haftmann@35032
  2001
haftmann@35027
  2002
INCOMPATIBILITY.
haftmann@35027
  2003
haftmann@36416
  2004
* Refined field classes:
wenzelm@36857
  2005
  - classes division_ring_inverse_zero, field_inverse_zero,
wenzelm@36857
  2006
    linordered_field_inverse_zero include rule inverse 0 = 0 --
wenzelm@36857
  2007
    subsumes former division_by_zero class;
wenzelm@36857
  2008
  - numerous lemmas have been ported from field to division_ring.
wenzelm@36857
  2009
INCOMPATIBILITY.
haftmann@36416
  2010
haftmann@36416
  2011
* Refined algebra theorem collections:
wenzelm@36857
  2012
  - dropped theorem group group_simps, use algebra_simps instead;
wenzelm@36857
  2013
  - dropped theorem group ring_simps, use field_simps instead;
wenzelm@36857
  2014
  - proper theorem collection field_simps subsumes former theorem
wenzelm@36857
  2015
    groups field_eq_simps and field_simps;
wenzelm@36857
  2016
  - dropped lemma eq_minus_self_iff which is a duplicate for
wenzelm@36857
  2017
    equal_neg_zero.
wenzelm@36857
  2018
INCOMPATIBILITY.
wenzelm@35009
  2019
wenzelm@35009
  2020
* Theory Finite_Set and List: some lemmas have been generalized from
wenzelm@34076
  2021
sets to lattices:
wenzelm@34076
  2022
haftmann@34007
  2023
  fun_left_comm_idem_inter      ~> fun_left_comm_idem_inf
haftmann@34007
  2024
  fun_left_comm_idem_union      ~> fun_left_comm_idem_sup
haftmann@34007
  2025
  inter_Inter_fold_inter        ~> inf_Inf_fold_inf
haftmann@34007
  2026
  union_Union_fold_union        ~> sup_Sup_fold_sup
haftmann@34007
  2027
  Inter_fold_inter              ~> Inf_fold_inf
haftmann@34007
  2028
  Union_fold_union              ~> Sup_fold_sup
haftmann@34007
  2029
  inter_INTER_fold_inter        ~> inf_INFI_fold_inf
haftmann@34007
  2030
  union_UNION_fold_union        ~> sup_SUPR_fold_sup
haftmann@34007
  2031
  INTER_fold_inter              ~> INFI_fold_inf
haftmann@34007
  2032
  UNION_fold_union              ~> SUPR_fold_sup
haftmann@34007
  2033
wenzelm@44973
  2034
* Theory "Complete_Lattice": lemmas top_def and bot_def have been
wenzelm@44973
  2035
replaced by the more convenient lemmas Inf_empty and Sup_empty.
wenzelm@44973
  2036
Dropped lemmas Inf_insert_simp and Sup_insert_simp, which are subsumed
wenzelm@44973
  2037
by Inf_insert and Sup_insert.  Lemmas Inf_UNIV and Sup_UNIV replace
wenzelm@44973
  2038
former Inf_Univ and Sup_Univ.  Lemmas inf_top_right and sup_bot_right
wenzelm@44973
  2039
subsume inf_top and sup_bot respectively.  INCOMPATIBILITY.
haftmann@36416
  2040
wenzelm@36857
  2041
* Reorganized theory Multiset: swapped notation of pointwise and
wenzelm@36857
  2042
multiset order:
wenzelm@37351
  2043
wenzelm@36857
  2044
  - pointwise ordering is instance of class order with standard syntax
wenzelm@36857
  2045
    <= and <;
wenzelm@36857
  2046
  - multiset ordering has syntax <=# and <#; partial order properties
wenzelm@36857
  2047
    are provided by means of interpretation with prefix
wenzelm@36857
  2048
    multiset_order;
wenzelm@36857
  2049
  - less duplication, less historical organization of sections,
wenzelm@36857
  2050
    conversion from associations lists to multisets, rudimentary code
wenzelm@36857
  2051
    generation;
wenzelm@36857
  2052
  - use insert_DiffM2 [symmetric] instead of elem_imp_eq_diff_union,
wenzelm@36857
  2053
    if needed.
wenzelm@37351
  2054
nipkow@36903
  2055
Renamed:
wenzelm@37351
  2056
wenzelm@37351
  2057
  multiset_eq_conv_count_eq  ~>  multiset_ext_iff
wenzelm@37351
  2058
  multi_count_ext  ~>  multiset_ext
wenzelm@37351
  2059
  diff_union_inverse2  ~>  diff_union_cancelR
wenzelm@37351
  2060
wenzelm@36857
  2061
INCOMPATIBILITY.
haftmann@36416
  2062
nipkow@36903
  2063
* Theory Permutation: replaced local "remove" by List.remove1.
nipkow@36903
  2064
haftmann@36416
  2065
* Code generation: ML and OCaml code is decorated with signatures.
haftmann@36416
  2066
wenzelm@35009
  2067
* Theory List: added transpose.
wenzelm@35009
  2068
huffman@35810
  2069
* Library/Nat_Bijection.thy is a collection of bijective functions
huffman@35810
  2070
between nat and other types, which supersedes the older libraries
huffman@35810
  2071
Library/Nat_Int_Bij.thy and HOLCF/NatIso.thy.  INCOMPATIBILITY.
huffman@35810
  2072
huffman@35810
  2073
  Constants:
huffman@35810
  2074
  Nat_Int_Bij.nat2_to_nat         ~> prod_encode
huffman@35810
  2075
  Nat_Int_Bij.nat_to_nat2         ~> prod_decode
huffman@35810
  2076
  Nat_Int_Bij.int_to_nat_bij      ~> int_encode
huffman@35810
  2077
  Nat_Int_Bij.nat_to_int_bij      ~> int_decode
huffman@35810
  2078
  Countable.pair_encode           ~> prod_encode
huffman@35810
  2079
  NatIso.prod2nat                 ~> prod_encode
huffman@35810
  2080
  NatIso.nat2prod                 ~> prod_decode
huffman@35810
  2081
  NatIso.sum2nat                  ~> sum_encode
huffman@35810
  2082
  NatIso.nat2sum                  ~> sum_decode
huffman@35810
  2083
  NatIso.list2nat                 ~> list_encode
huffman@35810
  2084
  NatIso.nat2list                 ~> list_decode
huffman@35810
  2085
  NatIso.set2nat                  ~> set_encode
huffman@35810
  2086
  NatIso.nat2set                  ~> set_decode
huffman@35810
  2087
huffman@35810
  2088
  Lemmas:
huffman@35810
  2089
  Nat_Int_Bij.bij_nat_to_int_bij  ~> bij_int_decode
huffman@35810
  2090
  Nat_Int_Bij.nat2_to_nat_inj     ~> inj_prod_encode
huffman@35810
  2091
  Nat_Int_Bij.nat2_to_nat_surj    ~> surj_prod_encode
huffman@35810
  2092
  Nat_Int_Bij.nat_to_nat2_inj     ~> inj_prod_decode
huffman@35810
  2093
  Nat_Int_Bij.nat_to_nat2_surj    ~> surj_prod_decode
huffman@35810
  2094
  Nat_Int_Bij.i2n_n2i_id          ~> int_encode_inverse
huffman@35810
  2095
  Nat_Int_Bij.n2i_i2n_id          ~> int_decode_inverse
huffman@35810
  2096
  Nat_Int_Bij.surj_nat_to_int_bij ~> surj_int_encode
huffman@35810
  2097
  Nat_Int_Bij.surj_int_to_nat_bij ~> surj_int_decode
huffman@35810
  2098
  Nat_Int_Bij.inj_nat_to_int_bij  ~> inj_int_encode
huffman@35810
  2099
  Nat_Int_Bij.inj_int_to_nat_bij  ~> inj_int_decode
huffman@35810
  2100
  Nat_Int_Bij.bij_nat_to_int_bij  ~> bij_int_encode
huffman@35810
  2101
  Nat_Int_Bij.bij_int_to_nat_bij  ~> bij_int_decode
huffman@35810
  2102
blanchet@36929
  2103
* Sledgehammer:
blanchet@36929
  2104
  - Renamed ATP commands:
blanchet@36929
  2105
    atp_info     ~> sledgehammer running_atps
blanchet@36929
  2106
    atp_kill     ~> sledgehammer kill_atps
blanchet@36929
  2107
    atp_messages ~> sledgehammer messages
blanchet@36929
  2108
    atp_minimize ~> sledgehammer minimize
blanchet@36929
  2109
    print_atps   ~> sledgehammer available_atps
blanchet@36929
  2110
    INCOMPATIBILITY.
blanchet@36929
  2111
  - Added user's manual ("isabelle doc sledgehammer").
blanchet@36929
  2112
  - Added option syntax and "sledgehammer_params" to customize
blanchet@36929
  2113
    Sledgehammer's behavior.  See the manual for details.
blanchet@36929
  2114
  - Modified the Isar proof reconstruction code so that it produces
blanchet@36929
  2115
    direct proofs rather than proofs by contradiction.  (This feature
blanchet@36929
  2116
    is still experimental.)
blanchet@36929
  2117
  - Made Isar proof reconstruction work for SPASS, remote ATPs, and in
blanchet@36929
  2118
    full-typed mode.
blanchet@36929
  2119
  - Added support for TPTP syntax for SPASS via the "spass_tptp" ATP.
blanchet@36929
  2120
blanchet@36928
  2121
* Nitpick:
blanchet@36928
  2122
  - Added and implemented "binary_ints" and "bits" options.
blanchet@36928
  2123
  - Added "std" option and implemented support for nonstandard models.
blanchet@36928
  2124
  - Added and implemented "finitize" option to improve the precision
blanchet@36928
  2125
    of infinite datatypes based on a monotonicity analysis.
blanchet@36928
  2126
  - Added support for quotient types.
blanchet@36928
  2127
  - Added support for "specification" and "ax_specification"
blanchet@36928
  2128
    constructs.
blanchet@36928
  2129
  - Added support for local definitions (for "function" and
blanchet@36928
  2130
    "termination" proofs).
blanchet@36928
  2131
  - Added support for term postprocessors.
blanchet@36928
  2132
  - Optimized "Multiset.multiset" and "FinFun.finfun".
blanchet@36928
  2133
  - Improved efficiency of "destroy_constrs" optimization.
blanchet@36928
  2134
  - Fixed soundness bugs related to "destroy_constrs" optimization and
blanchet@36928
  2135
    record getters.
blanchet@37272
  2136
  - Fixed soundness bug related to higher-order constructors.
blanchet@37272
  2137
  - Fixed soundness bug when "full_descrs" is enabled.
blanchet@36928
  2138
  - Improved precision of set constructs.
blanchet@37260
  2139
  - Added "atoms" option.
blanchet@36928
  2140
  - Added cache to speed up repeated Kodkod invocations on the same
blanchet@36928
  2141
    problems.
blanchet@36928
  2142
  - Renamed "MiniSatJNI", "zChaffJNI", "BerkMinAlloy", and
blanchet@36928
  2143
    "SAT4JLight" to "MiniSat_JNI", "zChaff_JNI", "BerkMin_Alloy", and
blanchet@36928
  2144
    "SAT4J_Light".  INCOMPATIBILITY.
blanchet@36928
  2145
  - Removed "skolemize", "uncurry", "sym_break", "flatten_prop",
blanchet@36928
  2146
    "sharing_depth", and "show_skolems" options.  INCOMPATIBILITY.
blanchet@37264
  2147
  - Removed "nitpick_intro" attribute.  INCOMPATIBILITY.
blanchet@36928
  2148
berghofe@37361
  2149
* Method "induct" now takes instantiations of the form t, where t is not
berghofe@37361
  2150
  a variable, as a shorthand for "x == t", where x is a fresh variable.
berghofe@37361
  2151
  If this is not intended, t has to be enclosed in parentheses.
berghofe@37361
  2152
  By default, the equalities generated by definitional instantiations
berghofe@37361
  2153
  are pre-simplified, which may cause parameters of inductive cases
berghofe@37361
  2154
  to disappear, or may even delete some of the inductive cases.
berghofe@37361
  2155
  Use "induct (no_simp)" instead of "induct" to restore the old
berghofe@37361
  2156
  behaviour. The (no_simp) option is also understood by the "cases"
berghofe@37361
  2157
  and "nominal_induct" methods, which now perform pre-simplification, too.
berghofe@37361
  2158
  INCOMPATIBILITY.
berghofe@37361
  2159
haftmann@33993
  2160
huffman@36828
  2161
*** HOLCF ***
huffman@36828
  2162
huffman@36828
  2163
* Variable names in lemmas generated by the domain package have
huffman@36828
  2164
changed; the naming scheme is now consistent with the HOL datatype
huffman@36828
  2165
package.  Some proof scripts may be affected, INCOMPATIBILITY.
huffman@36828
  2166
huffman@36828
  2167
* The domain package no longer defines the function "foo_copy" for
huffman@36828
  2168
recursive domain "foo".  The reach lemma is now stated directly in
huffman@36828
  2169
terms of "foo_take".  Lemmas and proofs that mention "foo_copy" must
huffman@36828
  2170
be reformulated in terms of "foo_take", INCOMPATIBILITY.
huffman@36828
  2171
huffman@36828
  2172
* Most definedness lemmas generated by the domain package (previously
huffman@36828
  2173
of the form "x ~= UU ==> foo$x ~= UU") now have an if-and-only-if form
huffman@36828
  2174
like "foo$x = UU <-> x = UU", which works better as a simp rule.
wenzelm@37351
  2175
Proofs that used definedness lemmas as intro rules may break,
huffman@36828
  2176
potential INCOMPATIBILITY.
huffman@36828
  2177
huffman@36828
  2178
* Induction and casedist rules generated by the domain package now
huffman@36828
  2179
declare proper case_names (one called "bottom", and one named for each
huffman@36828
  2180
constructor).  INCOMPATIBILITY.
huffman@36828
  2181
huffman@36828
  2182
* For mutually-recursive domains, separate "reach" and "take_lemma"
huffman@36828
  2183
rules are generated for each domain, INCOMPATIBILITY.
huffman@36828
  2184
huffman@36828
  2185
  foo_bar.reach       ~> foo.reach  bar.reach
huffman@36828
  2186
  foo_bar.take_lemmas ~> foo.take_lemma  bar.take_lemma
huffman@36828
  2187
huffman@36828
  2188
* Some lemmas generated by the domain package have been renamed for
huffman@36828
  2189
consistency with the datatype package, INCOMPATIBILITY.
huffman@36828
  2190
huffman@36828
  2191
  foo.ind        ~> foo.induct
huffman@36828
  2192
  foo.finite_ind ~> foo.finite_induct
huffman@36828
  2193
  foo.coind      ~> foo.coinduct
huffman@36828
  2194
  foo.casedist   ~> foo.exhaust
huffman@36828
  2195
  foo.exhaust    ~> foo.nchotomy
huffman@36828
  2196
huffman@36828
  2197
* For consistency with other definition packages, the fixrec package
huffman@36828
  2198
now generates qualified theorem names, INCOMPATIBILITY.
huffman@36828
  2199
huffman@36828
  2200
  foo_simps  ~> foo.simps
huffman@36828
  2201
  foo_unfold ~> foo.unfold
huffman@36828
  2202
  foo_induct ~> foo.induct
huffman@36828
  2203
huffman@37087
  2204
* The "fixrec_simp" attribute has been removed.  The "fixrec_simp"
huffman@37087
  2205
method and internal fixrec proofs now use the default simpset instead.
huffman@37087
  2206
INCOMPATIBILITY.
huffman@37087
  2207
huffman@36828
  2208
* The "contlub" predicate has been removed.  Proof scripts should use
huffman@36828
  2209
lemma contI2 in place of monocontlub2cont, INCOMPATIBILITY.
huffman@36828
  2210
huffman@36828
  2211
* The "admw" predicate has been removed, INCOMPATIBILITY.
huffman@36828
  2212
huffman@36828
  2213
* The constants cpair, cfst, and csnd have been removed in favor of
huffman@36828
  2214
Pair, fst, and snd from Isabelle/HOL, INCOMPATIBILITY.
huffman@36828
  2215
huffman@36828
  2216
haftmann@33993
  2217
*** ML ***
haftmann@33993
  2218
wenzelm@37351
  2219
* Antiquotations for basic formal entities:
wenzelm@37351
  2220
wenzelm@37351
  2221
    @{class NAME}         -- type class
wenzelm@37351
  2222
    @{class_syntax NAME}  -- syntax representation of the above
wenzelm@37351
  2223
wenzelm@37351
  2224
    @{type_name NAME}     -- logical type
wenzelm@37351
  2225
    @{type_abbrev NAME}   -- type abbreviation
wenzelm@37351
  2226
    @{nonterminal NAME}   -- type of concrete syntactic category
wenzelm@37351
  2227
    @{type_syntax NAME}   -- syntax representation of any of the above
wenzelm@37351
  2228
wenzelm@37351
  2229
    @{const_name NAME}    -- logical constant (INCOMPATIBILITY)
wenzelm@37351
  2230
    @{const_abbrev NAME}  -- abbreviated constant
wenzelm@37351
  2231
    @{const_syntax NAME}  -- syntax representation of any of the above
wenzelm@37351
  2232
wenzelm@37351
  2233
* Antiquotation @{syntax_const NAME} ensures that NAME refers to a raw
wenzelm@37351
  2234
syntax constant (cf. 'syntax' command).
wenzelm@37351
  2235
wenzelm@37351
  2236
* Antiquotation @{make_string} inlines a function to print arbitrary
wenzelm@37351
  2237
values similar to the ML toplevel.  The result is compiler dependent
wenzelm@37351
  2238
and may fall back on "?" in certain situations.
wenzelm@37351
  2239
wenzelm@37351
  2240
* Diagnostic commands 'ML_val' and 'ML_command' may refer to
wenzelm@37351
  2241
antiquotations @{Isar.state} and @{Isar.goal}.  This replaces impure
wenzelm@37351
  2242
Isar.state() and Isar.goal(), which belong to the old TTY loop and do
wenzelm@37351
  2243
not work with the asynchronous Isar document model.
wenzelm@37351
  2244
wenzelm@37351
  2245
* Configuration options now admit dynamic default values, depending on
wenzelm@37351
  2246
the context or even global references.
wenzelm@37351
  2247
wenzelm@37351
  2248
* SHA1.digest digests strings according to SHA-1 (see RFC 3174).  It
wenzelm@37351
  2249
uses an efficient external library if available (for Poly/ML).
wenzelm@37351
  2250
wenzelm@37144
  2251
* Renamed some important ML structures, while keeping the old names
wenzelm@37144
  2252
for some time as aliases within the structure Legacy:
wenzelm@37144
  2253
wenzelm@37144
  2254
  OuterKeyword  ~>  Keyword
wenzelm@37144
  2255
  OuterLex      ~>  Token
wenzelm@37144
  2256
  OuterParse    ~>  Parse
wenzelm@37144
  2257
  OuterSyntax   ~>  Outer_Syntax
wenzelm@37216
  2258
  PrintMode     ~>  Print_Mode
wenzelm@37144
  2259
  SpecParse     ~>  Parse_Spec
wenzelm@37216
  2260
  ThyInfo       ~>  Thy_Info
wenzelm@37216
  2261
  ThyLoad       ~>  Thy_Load
wenzelm@37216
  2262
  ThyOutput     ~>  Thy_Output
wenzelm@37145
  2263
  TypeInfer     ~>  Type_Infer
wenzelm@37144
  2264
wenzelm@37144
  2265
Note that "open Legacy" simplifies porting of sources, but forgetting
wenzelm@37144
  2266
to remove it again will complicate porting again in the future.
wenzelm@37144
  2267
wenzelm@37144
  2268
* Most operations that refer to a global context are named
wenzelm@37144
  2269
accordingly, e.g. Simplifier.global_context or
wenzelm@37144
  2270
ProofContext.init_global.  There are some situations where a global
wenzelm@37144
  2271
context actually works, but under normal circumstances one needs to
wenzelm@37144
  2272
pass the proper local context through the code!
wenzelm@37144
  2273
wenzelm@37144
  2274
* Discontinued old TheoryDataFun with its copy/init operation -- data
wenzelm@37144
  2275
needs to be pure.  Functor Theory_Data_PP retains the traditional
wenzelm@37144
  2276
Pretty.pp argument to merge, which is absent in the standard
wenzelm@37144
  2277
Theory_Data version.
wenzelm@36429
  2278
wenzelm@37144
  2279
* Sorts.certify_sort and derived "cert" operations for types and terms
wenzelm@37144
  2280
no longer minimize sorts.  Thus certification at the boundary of the
wenzelm@37144
  2281
inference kernel becomes invariant under addition of class relations,
wenzelm@37144
  2282
which is an important monotonicity principle.  Sorts are now minimized
wenzelm@37144
  2283
in the syntax layer only, at the boundary between the end-user and the
wenzelm@37144
  2284
system.  Subtle INCOMPATIBILITY, may have to use Sign.minimize_sort
wenzelm@37144
  2285
explicitly in rare situations.
wenzelm@37144
  2286
wenzelm@35021
  2287
* Renamed old-style Drule.standard to Drule.export_without_context, to
wenzelm@35021
  2288
emphasize that this is in no way a standard operation.
wenzelm@35021
  2289
INCOMPATIBILITY.
wenzelm@35021
  2290
wenzelm@34076
  2291
* Subgoal.FOCUS (and variants): resulting goal state is normalized as
wenzelm@34076
  2292
usual for resolution.  Rare INCOMPATIBILITY.
wenzelm@34076
  2293
wenzelm@35845
  2294
* Renamed varify/unvarify operations to varify_global/unvarify_global
wenzelm@35845
  2295
to emphasize that these only work in a global situation (which is
wenzelm@35845
  2296
quite rare).
wenzelm@35845
  2297
wenzelm@37144
  2298
* Curried take and drop in library.ML; negative length is interpreted
wenzelm@37144
  2299
as infinity (as in chop).  Subtle INCOMPATIBILITY.
wenzelm@36961
  2300
wenzelm@37351
  2301
* Proof terms: type substitutions on proof constants now use canonical
wenzelm@37351
  2302
order of type variables.  INCOMPATIBILITY for tools working with proof
wenzelm@37351
  2303
terms.
wenzelm@37351
  2304
wenzelm@37351
  2305
* Raw axioms/defs may no longer carry sort constraints, and raw defs
wenzelm@37351
  2306
may no longer carry premises.  User-level specifications are
wenzelm@37351
  2307
transformed accordingly by Thm.add_axiom/add_def.
wenzelm@37351
  2308
haftmann@33993
  2309
wenzelm@34238
  2310
*** System ***
wenzelm@34238
  2311
wenzelm@34238
  2312
* Discontinued special HOL_USEDIR_OPTIONS for the main HOL image;
wenzelm@34238
  2313
ISABELLE_USEDIR_OPTIONS applies uniformly to all sessions.  Note that
wenzelm@34238
  2314
proof terms are enabled unconditionally in the new HOL-Proofs image.
wenzelm@34238
  2315
wenzelm@34255
  2316
* Discontinued old ISABELLE and ISATOOL environment settings (legacy
wenzelm@34255
  2317
feature since Isabelle2009).  Use ISABELLE_PROCESS and ISABELLE_TOOL,
wenzelm@34255
  2318
respectively.
wenzelm@34255
  2319
wenzelm@36201
  2320
* Old lib/scripts/polyml-platform is superseded by the
wenzelm@36201
  2321
ISABELLE_PLATFORM setting variable, which defaults to the 32 bit
wenzelm@36201
  2322
variant, even on a 64 bit machine.  The following example setting
wenzelm@36201
  2323
prefers 64 bit if available:
wenzelm@36201
  2324
wenzelm@36201
  2325
  ML_PLATFORM="${ISABELLE_PLATFORM64:-$ISABELLE_PLATFORM}"
wenzelm@36201
  2326
wenzelm@37218
  2327
* The preliminary Isabelle/jEdit application demonstrates the emerging
wenzelm@37218
  2328
Isabelle/Scala layer for advanced prover interaction and integration.
wenzelm@37218
  2329
See src/Tools/jEdit or "isabelle jedit" provided by the properly built
wenzelm@37218
  2330
component.
wenzelm@37218
  2331
wenzelm@37375
  2332
* "IsabelleText" is a Unicode font derived from Bitstream Vera Mono
wenzelm@37375
  2333
and Bluesky TeX fonts.  It provides the usual Isabelle symbols,
wenzelm@37375
  2334
similar to the default assignment of the document preparation system
wenzelm@37375
  2335
(cf. isabellesym.sty).  The Isabelle/Scala class Isabelle_System
wenzelm@37375
  2336
provides some operations for direct access to the font without asking
wenzelm@37375
  2337
the user for manual installation.
wenzelm@37375
  2338
wenzelm@34238
  2339
haftmann@33993
  2340
wenzelm@33842
  2341
New in Isabelle2009-1 (December 2009)
wenzelm@33842
  2342
-------------------------------------
wenzelm@30904
  2343
wenzelm@31547
  2344
*** General ***
wenzelm@31547
  2345
wenzelm@31547
  2346
* Discontinued old form of "escaped symbols" such as \\<forall>.  Only
wenzelm@31547
  2347
one backslash should be used, even in ML sources.
wenzelm@31547
  2348
wenzelm@31547
  2349
haftmann@30951
  2350
*** Pure ***
haftmann@30951
  2351
ballarin@32846
  2352
* Locale interpretation propagates mixins along the locale hierarchy.
ballarin@32846
  2353
The currently only available mixins are the equations used to map
ballarin@32846
  2354
local definitions to terms of the target domain of an interpretation.
ballarin@32846
  2355
wenzelm@33842
  2356
* Reactivated diagnostic command 'print_interps'.  Use "print_interps
wenzelm@33842
  2357
loc" to print all interpretations of locale "loc" in the theory.
wenzelm@33842
  2358
Interpretations in proofs are not shown.
ballarin@32846
  2359
ballarin@32983
  2360
* Thoroughly revised locales tutorial.  New section on conditional
ballarin@32983
  2361
interpretation.
ballarin@32983
  2362
wenzelm@33843
  2363
* On instantiation of classes, remaining undefined class parameters
wenzelm@33843
  2364
are formally declared.  INCOMPATIBILITY.
wenzelm@33843
  2365
haftmann@30951
  2366
wenzelm@33842
  2367
*** Document preparation ***
wenzelm@33842
  2368
wenzelm@33842
  2369
* New generalized style concept for printing terms: @{foo (style) ...}
wenzelm@33842
  2370
instead of @{foo_style style ...}  (old form is still retained for
wenzelm@33842
  2371
backward compatibility).  Styles can be also applied for
wenzelm@33842
  2372
antiquotations prop, term_type and typeof.
haftmann@32891
  2373
haftmann@32891
  2374
haftmann@30930
  2375
*** HOL ***
haftmann@30930
  2376
wenzelm@33842
  2377
* New proof method "smt" for a combination of first-order logic with
wenzelm@33842
  2378
equality, linear and nonlinear (natural/integer/real) arithmetic, and
wenzelm@33842
  2379
fixed-size bitvectors; there is also basic support for higher-order
wenzelm@33842
  2380
features (esp. lambda abstractions).  It is an incomplete decision
wenzelm@33842
  2381
procedure based on external SMT solvers using the oracle mechanism;
wenzelm@33842
  2382
for the SMT solver Z3, this method is proof-producing.  Certificates
wenzelm@33842
  2383
are provided to avoid calling the external solvers solely for
wenzelm@33842
  2384
re-checking proofs.  Due to a remote SMT service there is no need for
wenzelm@33842
  2385
installing SMT solvers locally.  See src/HOL/SMT.
wenzelm@33842
  2386
wenzelm@33842
  2387
* New commands to load and prove verification conditions generated by
wenzelm@33842
  2388
the Boogie program verifier or derived systems (e.g. the Verifying C
wenzelm@33842
  2389
Compiler (VCC) or Spec#).  See src/HOL/Boogie.
wenzelm@33842
  2390
wenzelm@33842
  2391
* New counterexample generator tool 'nitpick' based on the Kodkod
wenzelm@33842
  2392
relational model finder.  See src/HOL/Tools/Nitpick and
wenzelm@33842
  2393
src/HOL/Nitpick_Examples.
wenzelm@33842
  2394
haftmann@33860
  2395
* New commands 'code_pred' and 'values' to invoke the predicate
haftmann@33860
  2396
compiler and to enumerate values of inductive predicates.
haftmann@33860
  2397
haftmann@33860
  2398
* A tabled implementation of the reflexive transitive closure.
haftmann@33860
  2399
haftmann@33860
  2400
* New implementation of quickcheck uses generic code generator;
haftmann@33860
  2401
default generators are provided for all suitable HOL types, records
haftmann@33860
  2402
and datatypes.  Old quickcheck can be re-activated importing theory
haftmann@33860
  2403
Library/SML_Quickcheck.
haftmann@33860
  2404
wenzelm@33843
  2405
* New testing tool Mirabelle for automated proof tools.  Applies
wenzelm@33843
  2406
several tools and tactics like sledgehammer, metis, or quickcheck, to
wenzelm@33843
  2407
every proof step in a theory.  To be used in batch mode via the
wenzelm@33843
  2408
"mirabelle" utility.
wenzelm@33843
  2409
wenzelm@33843
  2410
* New proof method "sos" (sum of squares) for nonlinear real
wenzelm@33843
  2411
arithmetic (originally due to John Harison). It requires theory
wenzelm@33843
  2412
Library/Sum_Of_Squares.  It is not a complete decision procedure but
wenzelm@33843
  2413
works well in practice on quantifier-free real arithmetic with +, -,
wenzelm@33843
  2414
*, ^, =, <= and <, i.e. boolean combinations of equalities and
wenzelm@33843
  2415
inequalities between polynomials.  It makes use of external
wenzelm@33843
  2416
semidefinite programming solvers.  Method "sos" generates a
wenzelm@33843
  2417
certificate that can be pasted into the proof thus avoiding the need
wenzelm@33843
  2418
to call an external tool every time the proof is checked.  See
wenzelm@33843
  2419
src/HOL/Library/Sum_Of_Squares.
wenzelm@33843
  2420
wenzelm@33843
  2421
* New method "linarith" invokes existing linear arithmetic decision
wenzelm@33843
  2422
procedure only.
wenzelm@33843
  2423
wenzelm@33843
  2424
* New command 'atp_minimal' reduces result produced by Sledgehammer.
wenzelm@33843
  2425
wenzelm@33843
  2426
* New Sledgehammer option "Full Types" in Proof General settings menu.
wenzelm@33843
  2427
Causes full type information to be output to the ATPs.  This slows
wenzelm@33843
  2428
ATPs down considerably but eliminates a source of unsound "proofs"
wenzelm@33843
  2429
that fail later.
wenzelm@33843
  2430
wenzelm@33843
  2431
* New method "metisFT": A version of metis that uses full type
wenzelm@33843
  2432
information in order to avoid failures of proof reconstruction.
wenzelm@33843
  2433
wenzelm@33843
  2434
* New evaluator "approximate" approximates an real valued term using
wenzelm@33843
  2435
the same method as the approximation method.
wenzelm@33843
  2436
wenzelm@33843
  2437
* Method "approximate" now supports arithmetic expressions as
wenzelm@33843
  2438
boundaries of intervals and implements interval splitting and Taylor
wenzelm@33843
  2439
series expansion.
wenzelm@33843
  2440
wenzelm@33843
  2441
* ML antiquotation @{code_datatype} inserts definition of a datatype
wenzelm@33843
  2442
generated by the code generator; e.g. see src/HOL/Predicate.thy.
wenzelm@33843
  2443
haftmann@33860
  2444
* New theory SupInf of the supremum and infimum operators for sets of
haftmann@33860
  2445
reals.
haftmann@33860
  2446
haftmann@33860
  2447
* New theory Probability, which contains a development of measure
haftmann@33860
  2448
theory, eventually leading to Lebesgue integration and probability.
haftmann@33860
  2449
haftmann@33860
  2450
* Extended Multivariate Analysis to include derivation and Brouwer's
haftmann@33860
  2451
fixpoint theorem.
wenzelm@33843
  2452
wenzelm@33842
  2453
* Reorganization of number theory, INCOMPATIBILITY:
wenzelm@33873
  2454
  - new number theory development for nat and int, in theories Divides
wenzelm@33873
  2455
    and GCD as well as in new session Number_Theory
wenzelm@33873
  2456
  - some constants and facts now suffixed with _nat and _int
wenzelm@33873
  2457
    accordingly
wenzelm@33873
  2458
  - former session NumberTheory now named Old_Number_Theory, including
wenzelm@33873
  2459
    theories Legacy_GCD and Primes (prefer Number_Theory if possible)
wenzelm@33842
  2460
  - moved theory Pocklington from src/HOL/Library to
wenzelm@33842
  2461
    src/HOL/Old_Number_Theory
haftmann@32479
  2462
wenzelm@33873
  2463
* Theory GCD includes functions Gcd/GCD and Lcm/LCM for the gcd and
wenzelm@33873
  2464
lcm of finite and infinite sets. It is shown that they form a complete
haftmann@32600
  2465
lattice.
haftmann@32600
  2466
haftmann@32600
  2467
* Class semiring_div requires superclass no_zero_divisors and proof of
haftmann@32600
  2468
div_mult_mult1; theorems div_mult_mult1, div_mult_mult2,
haftmann@32600
  2469
div_mult_mult1_if, div_mult_mult1 and div_mult_mult2 have been
haftmann@32600
  2470
generalized to class semiring_div, subsuming former theorems
haftmann@32600
  2471
zdiv_zmult_zmult1, zdiv_zmult_zmult1_if, zdiv_zmult_zmult1 and
haftmann@32600
  2472
zdiv_zmult_zmult2.  div_mult_mult1 is now [simp] by default.
haftmann@32600
  2473
INCOMPATIBILITY.
haftmann@32600
  2474
haftmann@32588
  2475
* Refinements to lattice classes and sets:
haftmann@32064
  2476
  - less default intro/elim rules in locale variant, more default
haftmann@32064
  2477
    intro/elim rules in class variant: more uniformity
wenzelm@33842
  2478
  - lemma ge_sup_conv renamed to le_sup_iff, in accordance with
wenzelm@33842
  2479
    le_inf_iff
wenzelm@33842
  2480
  - dropped lemma alias inf_ACI for inf_aci (same for sup_ACI and
wenzelm@33842
  2481
    sup_aci)
haftmann@32064
  2482
  - renamed ACI to inf_sup_aci
haftmann@32600
  2483
  - new class "boolean_algebra"
wenzelm@33842
  2484
  - class "complete_lattice" moved to separate theory
haftmann@33860
  2485
    "Complete_Lattice"; corresponding constants (and abbreviations)
wenzelm@33842
  2486
    renamed and with authentic syntax:
haftmann@33860
  2487
    Set.Inf ~>    Complete_Lattice.Inf
haftmann@33860
  2488
    Set.Sup ~>    Complete_Lattice.Sup
haftmann@33860
  2489
    Set.INFI ~>   Complete_Lattice.INFI
haftmann@33860
  2490
    Set.SUPR ~>   Complete_Lattice.SUPR
haftmann@33860
  2491
    Set.Inter ~>  Complete_Lattice.Inter
haftmann@33860
  2492
    Set.Union ~>  Complete_Lattice.Union
haftmann@33860
  2493
    Set.INTER ~>  Complete_Lattice.INTER
haftmann@33860
  2494
    Set.UNION ~>  Complete_Lattice.UNION
haftmann@32600
  2495
  - authentic syntax for
haftmann@32600
  2496
    Set.Pow
haftmann@32600
  2497
    Set.image
haftmann@32588
  2498
  - mere abbreviations:
haftmann@32588
  2499
    Set.empty               (for bot)
haftmann@32588
  2500
    Set.UNIV                (for top)
haftmann@33860
  2501
    Set.inter               (for inf, formerly Set.Int)
haftmann@33860
  2502
    Set.union               (for sup, formerly Set.Un)
haftmann@32588
  2503
    Complete_Lattice.Inter  (for Inf)
haftmann@32588
  2504
    Complete_Lattice.Union  (for Sup)
haftmann@32606
  2505
    Complete_Lattice.INTER  (for INFI)
haftmann@32606
  2506
    Complete_Lattice.UNION  (for SUPR)
haftmann@32600
  2507
  - object-logic definitions as far as appropriate
haftmann@32217
  2508
haftmann@32691
  2509
INCOMPATIBILITY.  Care is required when theorems Int_subset_iff or
wenzelm@33842
  2510
Un_subset_iff are explicitly deleted as default simp rules; then also
wenzelm@33842
  2511
their lattice counterparts le_inf_iff and le_sup_iff have to be
haftmann@32691
  2512
deleted to achieve the desired effect.
haftmann@32064
  2513
wenzelm@33842
  2514
* Rules inf_absorb1, inf_absorb2, sup_absorb1, sup_absorb2 are no simp
wenzelm@33842
  2515
rules by default any longer; the same applies to min_max.inf_absorb1
wenzelm@33842
  2516
etc.  INCOMPATIBILITY.
wenzelm@33842
  2517
wenzelm@33842
  2518
* Rules sup_Int_eq and sup_Un_eq are no longer declared as
wenzelm@33842
  2519
pred_set_conv by default.  INCOMPATIBILITY.
wenzelm@33842
  2520
wenzelm@33842
  2521
* Power operations on relations and functions are now one dedicated
haftmann@32706
  2522
constant "compow" with infix syntax "^^".  Power operation on
wenzelm@31547
  2523
multiplicative monoids retains syntax "^" and is now defined generic
wenzelm@31547
  2524
in class power.  INCOMPATIBILITY.
wenzelm@31547
  2525
wenzelm@33842
  2526
* Relation composition "R O S" now has a more standard argument order:
wenzelm@33842
  2527
"R O S = {(x, z). EX y. (x, y) : R & (y, z) : S}".  INCOMPATIBILITY,
wenzelm@33842
  2528
rewrite propositions with "S O R" --> "R O S". Proofs may occasionally
wenzelm@33842
  2529
break, since the O_assoc rule was not rewritten like this.  Fix using
wenzelm@33842
  2530
O_assoc[symmetric].  The same applies to the curried version "R OO S".
wenzelm@32427
  2531
nipkow@33057
  2532
* Function "Inv" is renamed to "inv_into" and function "inv" is now an
wenzelm@33842
  2533
abbreviation for "inv_into UNIV".  Lemmas are renamed accordingly.
nipkow@32988
  2534
INCOMPATIBILITY.
nipkow@32988
  2535
haftmann@33860
  2536
* Most rules produced by inductive and datatype package have mandatory
haftmann@33860
  2537
prefixes.  INCOMPATIBILITY.
nipkow@31790
  2538
wenzelm@33842
  2539
* Changed "DERIV_intros" to a dynamic fact, which can be augmented by
wenzelm@33842
  2540
the attribute of the same name.  Each of the theorems in the list
wenzelm@33842
  2541
DERIV_intros assumes composition with an additional function and
wenzelm@33842
  2542
matches a variable to the derivative, which has to be solved by the
wenzelm@33842
  2543
Simplifier.  Hence (auto intro!: DERIV_intros) computes the derivative
wenzelm@33873
  2544
of most elementary terms.  Former Maclauren.DERIV_tac and
wenzelm@33873
  2545
Maclauren.deriv_tac should be replaced by (auto intro!: DERIV_intros).
wenzelm@33873
  2546
INCOMPATIBILITY.
haftmann@33860
  2547
haftmann@33860
  2548
* Code generator attributes follow the usual underscore convention:
haftmann@33860
  2549
    code_unfold     replaces    code unfold
haftmann@33860
  2550
    code_post       replaces    code post
haftmann@33860
  2551
    etc.
haftmann@33860
  2552
  INCOMPATIBILITY.
wenzelm@31900
  2553
krauss@33471
  2554
* Renamed methods:
krauss@33471
  2555
    sizechange -> size_change
krauss@33471
  2556
    induct_scheme -> induction_schema
haftmann@33860
  2557
  INCOMPATIBILITY.
nipkow@33673
  2558
wenzelm@33843
  2559
* Discontinued abbreviation "arbitrary" of constant "undefined".
wenzelm@33843
  2560
INCOMPATIBILITY, use "undefined" directly.
wenzelm@33843
  2561
haftmann@33860
  2562
* Renamed theorems:
haftmann@33860
  2563
    Suc_eq_add_numeral_1 -> Suc_eq_plus1
haftmann@33860
  2564
    Suc_eq_add_numeral_1_left -> Suc_eq_plus1_left
haftmann@33860
  2565
    Suc_plus1 -> Suc_eq_plus1
haftmann@33860
  2566
    *anti_sym -> *antisym*
haftmann@33860
  2567
    vector_less_eq_def -> vector_le_def
haftmann@33860
  2568
  INCOMPATIBILITY.
haftmann@33860
  2569
haftmann@33860
  2570
* Added theorem List.map_map as [simp].  Removed List.map_compose.
haftmann@33860
  2571
INCOMPATIBILITY.
haftmann@33860
  2572
haftmann@33860
  2573
* Removed predicate "M hassize n" (<--> card M = n & finite M).
haftmann@33860
  2574
INCOMPATIBILITY.
haftmann@33860
  2575
hoelzl@31812
  2576
huffman@33825
  2577
*** HOLCF ***
huffman@33825
  2578
wenzelm@33842
  2579
* Theory Representable defines a class "rep" of domains that are
wenzelm@33842
  2580
representable (via an ep-pair) in the universal domain type "udom".
huffman@33825
  2581
Instances are provided for all type constructors defined in HOLCF.
huffman@33825
  2582
huffman@33825
  2583
* The 'new_domain' command is a purely definitional version of the
huffman@33825
  2584
domain package, for representable domains.  Syntax is identical to the
huffman@33825
  2585
old domain package.  The 'new_domain' package also supports indirect
huffman@33825
  2586
recursion using previously-defined type constructors.  See
wenzelm@33842
  2587
src/HOLCF/ex/New_Domain.thy for examples.
wenzelm@33842
  2588
wenzelm@33842
  2589
* Method "fixrec_simp" unfolds one step of a fixrec-defined constant
huffman@33825
  2590
on the left-hand side of an equation, and then performs
huffman@33825
  2591
simplification.  Rewriting is done using rules declared with the
wenzelm@33842
  2592
"fixrec_simp" attribute.  The "fixrec_simp" method is intended as a
wenzelm@33842
  2593
replacement for "fixpat"; see src/HOLCF/ex/Fixrec_ex.thy for examples.
huffman@33825
  2594
huffman@33825
  2595
* The pattern-match compiler in 'fixrec' can now handle constructors
huffman@33825
  2596
with HOL function types.  Pattern-match combinators for the Pair
huffman@33825
  2597
constructor are pre-configured.
huffman@33825
  2598
huffman@33825
  2599
* The 'fixrec' package now produces better fixed-point induction rules
huffman@33825
  2600
for mutually-recursive definitions:  Induction rules have conclusions
huffman@33825
  2601
of the form "P foo bar" instead of "P <foo, bar>".
huffman@33825
  2602
huffman@33825
  2603
* The constant "sq_le" (with infix syntax "<<" or "\<sqsubseteq>") has
huffman@33825
  2604
been renamed to "below".  The name "below" now replaces "less" in many
wenzelm@33842
  2605
theorem names.  (Legacy theorem names using "less" are still supported
wenzelm@33842
  2606
as well.)
huffman@33825
  2607
huffman@33825
  2608
* The 'fixrec' package now supports "bottom patterns".  Bottom
huffman@33825
  2609
patterns can be used to generate strictness rules, or to make
huffman@33825
  2610
functions more strict (much like the bang-patterns supported by the
wenzelm@33873
  2611
Glasgow Haskell Compiler).  See src/HOLCF/ex/Fixrec_ex.thy for
wenzelm@33873
  2612
examples.
huffman@33825
  2613
huffman@33825
  2614
wenzelm@31304
  2615
*** ML ***
wenzelm@31304
  2616
wenzelm@33843
  2617
* Support for Poly/ML 5.3.0, with improved reporting of compiler
wenzelm@33843
  2618
errors and run-time exceptions, including detailed source positions.
wenzelm@33843
  2619
wenzelm@33843
  2620
* Structure Name_Space (formerly NameSpace) now manages uniquely
wenzelm@33843
  2621
identified entries, with some additional information such as source
wenzelm@33843
  2622
position, logical grouping etc.
wenzelm@33843
  2623
wenzelm@33524
  2624
* Theory and context data is now introduced by the simplified and
wenzelm@33524
  2625
modernized functors Theory_Data, Proof_Data, Generic_Data.  Data needs
wenzelm@33524
  2626
to be pure, but the old TheoryDataFun for mutable data (with explicit
wenzelm@33524
  2627
copy operation) is still available for some time.
wenzelm@33524
  2628
wenzelm@32742
  2629
* Structure Synchronized (cf. src/Pure/Concurrent/synchronized.ML)
wenzelm@32742
  2630
provides a high-level programming interface to synchronized state
wenzelm@32742
  2631
variables with atomic update.  This works via pure function
wenzelm@32742
  2632
application within a critical section -- its runtime should be as
wenzelm@32742
  2633
short as possible; beware of deadlocks if critical code is nested,
wenzelm@32742
  2634
either directly or indirectly via other synchronized variables!
wenzelm@32742
  2635
wenzelm@32742
  2636
* Structure Unsynchronized (cf. src/Pure/ML-Systems/unsynchronized.ML)
wenzelm@32742
  2637
wraps raw ML references, explicitly indicating their non-thread-safe
wenzelm@32742
  2638
behaviour.  The Isar toplevel keeps this structure open, to
wenzelm@32742
  2639
accommodate Proof General as well as quick and dirty interactive
wenzelm@32742
  2640
experiments with references.
wenzelm@32742
  2641
wenzelm@32365
  2642
* PARALLEL_CHOICE and PARALLEL_GOALS provide basic support for
wenzelm@32365
  2643
parallel tactical reasoning.
wenzelm@32365
  2644
wenzelm@32427
  2645
* Tacticals Subgoal.FOCUS, Subgoal.FOCUS_PREMS, Subgoal.FOCUS_PARAMS
wenzelm@32427
  2646
are similar to SUBPROOF, but are slightly more flexible: only the
wenzelm@32427
  2647
specified parts of the subgoal are imported into the context, and the
wenzelm@32427
  2648
body tactic may introduce new subgoals and schematic variables.
wenzelm@32427
  2649
wenzelm@32427
  2650
* Old tactical METAHYPS, which does not observe the proof context, has
wenzelm@32427
  2651
been renamed to Old_Goals.METAHYPS and awaits deletion.  Use SUBPROOF
wenzelm@32427
  2652
or Subgoal.FOCUS etc.
wenzelm@32216
  2653
wenzelm@31971
  2654
* Renamed functor TableFun to Table, and GraphFun to Graph.  (Since
wenzelm@31971
  2655
functors have their own ML name space there is no point to mark them
wenzelm@31971
  2656
separately.)  Minor INCOMPATIBILITY.
wenzelm@31971
  2657
wenzelm@31901
  2658
* Renamed NamedThmsFun to Named_Thms.  INCOMPATIBILITY.
wenzelm@31901
  2659
wenzelm@33842
  2660
* Renamed several structures FooBar to Foo_Bar.  Occasional,
wenzelm@33842
  2661
INCOMPATIBILITY.
wenzelm@33842
  2662
wenzelm@33843
  2663
* Operations of structure Skip_Proof no longer require quick_and_dirty
wenzelm@33843
  2664
mode, which avoids critical setmp.
wenzelm@33843
  2665
wenzelm@31306
  2666
* Eliminated old Attrib.add_attributes, Method.add_methods and related
wenzelm@33842
  2667
combinators for "args".  INCOMPATIBILITY, need to use simplified
wenzelm@31306
  2668
Attrib/Method.setup introduced in Isabelle2009.
wenzelm@31304
  2669
wenzelm@32151
  2670
* Proper context for simpset_of, claset_of, clasimpset_of.  May fall
wenzelm@32151
  2671
back on global_simpset_of, global_claset_of, global_clasimpset_of as
wenzelm@32151
  2672
last resort.  INCOMPATIBILITY.
wenzelm@32151
  2673
wenzelm@32092
  2674
* Display.pretty_thm now requires a proper context (cf. former
wenzelm@32092
  2675
ProofContext.pretty_thm).  May fall back on Display.pretty_thm_global
wenzelm@32092
  2676
or even Display.pretty_thm_without_context as last resort.
wenzelm@32092
  2677
INCOMPATIBILITY.
wenzelm@32092
  2678
wenzelm@32433
  2679
* Discontinued Display.pretty_ctyp/cterm etc.  INCOMPATIBILITY, use
wenzelm@32433
  2680
Syntax.pretty_typ/term directly, preferably with proper context
wenzelm@32433
  2681
instead of global theory.
wenzelm@32433
  2682