merged, resolving minor conflict, and recovering sane state;
authorwenzelm
Fri, 04 Dec 2009 15:30:36 +0100
changeset 33977 406d8e34a3cf
parent 33976 29b928d32203 (diff)
parent 33973 78c0842510cb (current diff)
child 33978 2380c1dac86e
merged, resolving minor conflict, and recovering sane state;
src/Pure/Isar/code.ML
--- a/.hgtags	Fri Dec 04 14:34:24 2009 +0100
+++ b/.hgtags	Fri Dec 04 15:30:36 2009 +0100
@@ -24,9 +24,4 @@
 f9eb0f819642b2ad77119dbf8935bf13248f205d Isabelle94
 fc385ce6187d5ad2cef90f1e6240cc691e02d827 Isabelle2005
 5c8618f95d240046bbbb609b643c06704888f587 Isabelle2009
-9db7854eafc75143cda2509a5325eb9150331866 isa2009-1-test
-9db7854eafc75143cda2509a5325eb9150331866 isa2009-1-test
-4328de748fb2ceffe4ad5a6d5fbf3347f6aecfa6 isa2009-1-test
-14ff44e21bec0e1b99d0f7322949b4fd012333e0 isa2009-1-test
-14ff44e21bec0e1b99d0f7322949b4fd012333e0 isa2009-1-test
-e1c262952b0285fa93f2e153891bc573d3de0f33 isa2009-1-test
+6a973bd4394996c31f638e5c59ea6bb953335c9a Isabelle2009-1
--- a/Admin/makedist	Fri Dec 04 14:34:24 2009 +0100
+++ b/Admin/makedist	Fri Dec 04 15:30:36 2009 +0100
@@ -4,7 +4,7 @@
 
 ## global settings
 
-REPOS_NAME="isabelle-release"
+REPOS_NAME="isabelle"
 REPOS="http://isabelle.in.tum.de/repos/${REPOS_NAME}"
 
 DISTPREFIX=${DISTPREFIX:-~/tmp/isadist}
--- a/CONTRIBUTORS	Fri Dec 04 14:34:24 2009 +0100
+++ b/CONTRIBUTORS	Fri Dec 04 15:30:36 2009 +0100
@@ -3,6 +3,9 @@
 who is listed as an author in one of the source files of this Isabelle
 distribution.
 
+Contributions to this Isabelle version
+--------------------------------------
+
 
 Contributions to Isabelle2009-1
 -------------------------------
--- a/NEWS	Fri Dec 04 14:34:24 2009 +0100
+++ b/NEWS	Fri Dec 04 15:30:36 2009 +0100
@@ -1,6 +1,10 @@
 Isabelle NEWS -- history user-relevant changes
 ==============================================
 
+New in this Isabelle version
+----------------------------
+
+
 New in Isabelle2009-1 (December 2009)
 -------------------------------------
 
--- a/doc-src/System/Thy/Basics.thy	Fri Dec 04 14:34:24 2009 +0100
+++ b/doc-src/System/Thy/Basics.thy	Fri Dec 04 15:30:36 2009 +0100
@@ -298,6 +298,10 @@
   @{setting ISABELLE_HOME_USER} is included in the same manner (if
   that directory exists).  Thus users can easily add private
   components to @{verbatim "$ISABELLE_HOME_USER/etc/components"}.
+
+  It is also possible to initialize components programmatically via
+  the \verb,init_component, shell function, say within the
+  \verb,settings, script of another component.
 *}
 
 
--- a/doc-src/System/Thy/document/Basics.tex	Fri Dec 04 14:34:24 2009 +0100
+++ b/doc-src/System/Thy/document/Basics.tex	Fri Dec 04 15:30:36 2009 +0100
@@ -308,7 +308,11 @@
   itself.  After initializing all of its sub-components recursively,
   \hyperlink{setting.ISABELLE-HOME-USER}{\mbox{\isa{\isatt{ISABELLE{\isacharunderscore}HOME{\isacharunderscore}USER}}}} is included in the same manner (if
   that directory exists).  Thus users can easily add private
-  components to \verb|$ISABELLE_HOME_USER/etc/components|.%
+  components to \verb|$ISABELLE_HOME_USER/etc/components|.
+
+  It is also possible to initialize components programmatically via
+  the \verb,init_component, shell function, say within the
+  \verb,settings, script of another component.%
 \end{isamarkuptext}%
 \isamarkuptrue%
 %
--- a/src/HOL/GCD.thy	Fri Dec 04 14:34:24 2009 +0100
+++ b/src/HOL/GCD.thy	Fri Dec 04 15:30:36 2009 +0100
@@ -779,14 +779,6 @@
   apply auto
 done
 
-lemma coprime_divprod_nat: "(d::nat) dvd a * b  \<Longrightarrow> coprime d a \<Longrightarrow> d dvd b"
-  using coprime_dvd_mult_iff_nat[of d a b]
-  by (auto simp add: mult_commute)
-
-lemma coprime_divprod_int: "(d::int) dvd a * b  \<Longrightarrow> coprime d a \<Longrightarrow> d dvd b"
-  using coprime_dvd_mult_iff_int[of d a b]
-  by (auto simp add: mult_commute)
-
 lemma division_decomp_nat: assumes dc: "(a::nat) dvd b * c"
   shows "\<exists>b' c'. a = b' * c' \<and> b' dvd b \<and> c' dvd c"
 proof-
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/HOL/Library/Crude_Executable_Set.thy	Fri Dec 04 15:30:36 2009 +0100
@@ -0,0 +1,259 @@
+(*  Title:      HOL/Library/Crude_Executable_Set.thy
+    Author:     Florian Haftmann, TU Muenchen
+*)
+
+header {* A crude implementation of finite sets by lists -- avoid using this at any cost! *}
+
+theory Crude_Executable_Set
+imports List_Set
+begin
+
+declare mem_def [code del]
+declare Collect_def [code del]
+declare insert_code [code del]
+declare vimage_code [code del]
+
+subsection {* Set representation *}
+
+setup {*
+  Code.add_type_cmd "set"
+*}
+
+definition Set :: "'a list \<Rightarrow> 'a set" where
+  [simp]: "Set = set"
+
+definition Coset :: "'a list \<Rightarrow> 'a set" where
+  [simp]: "Coset xs = - set xs"
+
+setup {*
+  Code.add_signature_cmd ("Set", "'a list \<Rightarrow> 'a set")
+  #> Code.add_signature_cmd ("Coset", "'a list \<Rightarrow> 'a set")
+  #> Code.add_signature_cmd ("set", "'a list \<Rightarrow> 'a set")
+  #> Code.add_signature_cmd ("op \<in>", "'a \<Rightarrow> 'a set \<Rightarrow> bool")
+*}
+
+code_datatype Set Coset
+
+
+subsection {* Basic operations *}
+
+lemma [code]:
+  "set xs = Set (remdups xs)"
+  by simp
+
+lemma [code]:
+  "x \<in> Set xs \<longleftrightarrow> member x xs"
+  "x \<in> Coset xs \<longleftrightarrow> \<not> member x xs"
+  by (simp_all add: mem_iff)
+
+definition is_empty :: "'a set \<Rightarrow> bool" where
+  [simp]: "is_empty A \<longleftrightarrow> A = {}"
+
+lemma [code_inline]:
+  "A = {} \<longleftrightarrow> is_empty A"
+  by simp
+
+definition empty :: "'a set" where
+  [simp]: "empty = {}"
+
+lemma [code_inline]:
+  "{} = empty"
+  by simp
+
+setup {*
+  Code.add_signature_cmd ("is_empty", "'a set \<Rightarrow> bool")
+  #> Code.add_signature_cmd ("empty", "'a set")
+  #> Code.add_signature_cmd ("insert", "'a \<Rightarrow> 'a set \<Rightarrow> 'a set")
+  #> Code.add_signature_cmd ("List_Set.remove", "'a \<Rightarrow> 'a set \<Rightarrow> 'a set")
+  #> Code.add_signature_cmd ("image", "('a \<Rightarrow> 'b) \<Rightarrow> 'a set \<Rightarrow> 'b set")
+  #> Code.add_signature_cmd ("List_Set.project", "('a \<Rightarrow> bool) \<Rightarrow> 'a set \<Rightarrow> 'a set")
+  #> Code.add_signature_cmd ("Ball", "'a set \<Rightarrow> ('a \<Rightarrow> bool) \<Rightarrow> bool")
+  #> Code.add_signature_cmd ("Bex", "'a set \<Rightarrow> ('a \<Rightarrow> bool) \<Rightarrow> bool")
+  #> Code.add_signature_cmd ("card", "'a set \<Rightarrow> nat")
+*}
+
+lemma is_empty_Set [code]:
+  "is_empty (Set xs) \<longleftrightarrow> null xs"
+  by (simp add: empty_null)
+
+lemma empty_Set [code]:
+  "empty = Set []"
+  by simp
+
+lemma insert_Set [code]:
+  "insert x (Set xs) = Set (List_Set.insert x xs)"
+  "insert x (Coset xs) = Coset (remove_all x xs)"
+  by (simp_all add: insert_set insert_set_compl)
+
+lemma remove_Set [code]:
+  "remove x (Set xs) = Set (remove_all x xs)"
+  "remove x (Coset xs) = Coset (List_Set.insert x xs)"
+  by (simp_all add:remove_set remove_set_compl)
+
+lemma image_Set [code]:
+  "image f (Set xs) = Set (remdups (map f xs))"
+  by simp
+
+lemma project_Set [code]:
+  "project P (Set xs) = Set (filter P xs)"
+  by (simp add: project_set)
+
+lemma Ball_Set [code]:
+  "Ball (Set xs) P \<longleftrightarrow> list_all P xs"
+  by (simp add: ball_set)
+
+lemma Bex_Set [code]:
+  "Bex (Set xs) P \<longleftrightarrow> list_ex P xs"
+  by (simp add: bex_set)
+
+lemma card_Set [code]:
+  "card (Set xs) = length (remdups xs)"
+proof -
+  have "card (set (remdups xs)) = length (remdups xs)"
+    by (rule distinct_card) simp
+  then show ?thesis by simp
+qed
+
+
+subsection {* Derived operations *}
+
+definition set_eq :: "'a set \<Rightarrow> 'a set \<Rightarrow> bool" where
+  [simp]: "set_eq = op ="
+
+lemma [code_inline]:
+  "op = = set_eq"
+  by simp
+
+definition subset_eq :: "'a set \<Rightarrow> 'a set \<Rightarrow> bool" where
+  [simp]: "subset_eq = op \<subseteq>"
+
+lemma [code_inline]:
+  "op \<subseteq> = subset_eq"
+  by simp
+
+definition subset :: "'a set \<Rightarrow> 'a set \<Rightarrow> bool" where
+  [simp]: "subset = op \<subset>"
+
+lemma [code_inline]:
+  "op \<subset> = subset"
+  by simp
+
+setup {*
+  Code.add_signature_cmd ("set_eq", "'a set \<Rightarrow> 'a set \<Rightarrow> bool")
+  #> Code.add_signature_cmd ("subset_eq", "'a set \<Rightarrow> 'a set \<Rightarrow> bool")
+  #> Code.add_signature_cmd ("subset", "'a set \<Rightarrow> 'a set \<Rightarrow> bool")
+*}
+
+lemma set_eq_subset_eq [code]:
+  "set_eq A B \<longleftrightarrow> subset_eq A B \<and> subset_eq B A"
+  by auto
+
+lemma subset_eq_forall [code]:
+  "subset_eq A B \<longleftrightarrow> (\<forall>x\<in>A. x \<in> B)"
+  by (simp add: subset_eq)
+
+lemma subset_subset_eq [code]:
+  "subset A B \<longleftrightarrow> subset_eq A B \<and> \<not> subset_eq B A"
+  by (simp add: subset)
+
+
+subsection {* Functorial operations *}
+
+definition inter :: "'a set \<Rightarrow> 'a set \<Rightarrow> 'a set" where
+  [simp]: "inter = op \<inter>"
+
+lemma [code_inline]:
+  "op \<inter> = inter"
+  by simp
+
+definition subtract :: "'a set \<Rightarrow> 'a set \<Rightarrow> 'a set" where
+  [simp]: "subtract A B = B - A"
+
+lemma [code_inline]:
+  "B - A = subtract A B"
+  by simp
+
+definition union :: "'a set \<Rightarrow> 'a set \<Rightarrow> 'a set" where
+  [simp]: "union = op \<union>"
+
+lemma [code_inline]:
+  "op \<union> = union"
+  by simp
+
+definition Inf :: "'a::complete_lattice set \<Rightarrow> 'a" where
+  [simp]: "Inf = Complete_Lattice.Inf"
+
+lemma [code_inline]:
+  "Complete_Lattice.Inf = Inf"
+  by simp
+
+definition Sup :: "'a::complete_lattice set \<Rightarrow> 'a" where
+  [simp]: "Sup = Complete_Lattice.Sup"
+
+lemma [code_inline]:
+  "Complete_Lattice.Sup = Sup"
+  by simp
+
+definition Inter :: "'a set set \<Rightarrow> 'a set" where
+  [simp]: "Inter = Inf"
+
+lemma [code_inline]:
+  "Inf = Inter"
+  by simp
+
+definition Union :: "'a set set \<Rightarrow> 'a set" where
+  [simp]: "Union = Sup"
+
+lemma [code_inline]:
+  "Sup = Union"
+  by simp
+
+setup {*
+  Code.add_signature_cmd ("inter", "'a set \<Rightarrow> 'a set \<Rightarrow> 'a set")
+  #> Code.add_signature_cmd ("subtract", "'a set \<Rightarrow> 'a set \<Rightarrow> 'a set")
+  #> Code.add_signature_cmd ("union", "'a set \<Rightarrow> 'a set \<Rightarrow> 'a set")
+  #> Code.add_signature_cmd ("Inf", "'a set \<Rightarrow> 'a")
+  #> Code.add_signature_cmd ("Sup", "'a set \<Rightarrow> 'a")
+  #> Code.add_signature_cmd ("Inter", "'a set set \<Rightarrow> 'a set")
+  #> Code.add_signature_cmd ("Union", "'a set set \<Rightarrow> 'a set")
+*}
+
+lemma inter_project [code]:
+  "inter A (Set xs) = Set (List.filter (\<lambda>x. x \<in> A) xs)"
+  "inter A (Coset xs) = foldl (\<lambda>A x. remove x A) A xs"
+  by (simp add: inter project_def, simp add: Diff_eq [symmetric] minus_set)
+
+lemma subtract_remove [code]:
+  "subtract (Set xs) A = foldl (\<lambda>A x. remove x A) A xs"
+  "subtract (Coset xs) A = Set (List.filter (\<lambda>x. x \<in> A) xs)"
+  by (auto simp add: minus_set)
+
+lemma union_insert [code]:
+  "union (Set xs) A = foldl (\<lambda>A x. insert x A) A xs"
+  "union (Coset xs) A = Coset (List.filter (\<lambda>x. x \<notin> A) xs)"
+  by (auto simp add: union_set)
+
+lemma Inf_inf [code]:
+  "Inf (Set xs) = foldl inf (top :: 'a::complete_lattice) xs"
+  "Inf (Coset []) = (bot :: 'a::complete_lattice)"
+  by (simp_all add: Inf_Univ bot_def [symmetric] Inf_set_fold)
+
+lemma Sup_sup [code]:
+  "Sup (Set xs) = foldl sup (bot :: 'a::complete_lattice) xs"
+  "Sup (Coset []) = (top :: 'a::complete_lattice)"
+  by (simp_all add: Sup_Univ top_def [symmetric] Sup_set_fold)
+
+lemma Inter_inter [code]:
+  "Inter (Set xs) = foldl inter (Coset []) xs"
+  "Inter (Coset []) = empty"
+  unfolding Inter_def Inf_inf by simp_all
+
+lemma Union_union [code]:
+  "Union (Set xs) = foldl union empty xs"
+  "Union (Coset []) = Coset []"
+  unfolding Union_def Sup_sup by simp_all
+
+hide (open) const is_empty empty remove
+  set_eq subset_eq subset inter union subtract Inf Sup Inter Union
+
+end
--- a/src/HOL/Library/Fset.thy	Fri Dec 04 14:34:24 2009 +0100
+++ b/src/HOL/Library/Fset.thy	Fri Dec 04 15:30:36 2009 +0100
@@ -210,7 +210,7 @@
     member (foldl (\<lambda>B A. Fset (member B \<inter> A)) (Coset []) (List.map member As))"
     by (rule foldl_apply_inv) simp
   then show "Inter (Set As) = foldl inter (Coset []) As"
-    by (simp add: Inter_set image_set inter inter_def_raw foldl_map)
+    by (simp add: Inf_set_fold image_set inter inter_def_raw foldl_map)
   show "Inter (Coset []) = empty"
     by simp
 qed
@@ -229,7 +229,7 @@
     member (foldl (\<lambda>B A. Fset (member B \<union> A)) empty (List.map member As))"
     by (rule foldl_apply_inv) simp
   then show "Union (Set As) = foldl union empty As"
-    by (simp add: Union_set image_set union_def_raw foldl_map)
+    by (simp add: Sup_set_fold image_set union_def_raw foldl_map)
   show "Union (Coset []) = Coset []"
     by simp
 qed
--- a/src/HOL/Library/Library.thy	Fri Dec 04 14:34:24 2009 +0100
+++ b/src/HOL/Library/Library.thy	Fri Dec 04 15:30:36 2009 +0100
@@ -14,6 +14,7 @@
   Continuity
   ContNotDenum
   Countable
+  Crude_Executable_Set
   Diagonalize
   Efficient_Nat
   Enum
--- a/src/HOL/Library/List_Set.thy	Fri Dec 04 14:34:24 2009 +0100
+++ b/src/HOL/Library/List_Set.thy	Fri Dec 04 15:30:36 2009 +0100
@@ -85,6 +85,50 @@
   "project P (set xs) = set (filter P xs)"
   by (auto simp add: project_def)
 
+text {* FIXME move the following to @{text Finite_Set.thy} *}
+
+lemma fun_left_comm_idem_inf:
+  "fun_left_comm_idem inf"
+proof
+qed (auto simp add: inf_left_commute)
+
+lemma fun_left_comm_idem_sup:
+  "fun_left_comm_idem sup"
+proof
+qed (auto simp add: sup_left_commute)
+
+lemma inf_Inf_fold_inf:
+  fixes A :: "'a::complete_lattice set"
+  assumes "finite A"
+  shows "inf B (Inf A) = fold inf B A"
+proof -
+  interpret fun_left_comm_idem inf by (fact fun_left_comm_idem_inf)
+  from `finite A` show ?thesis by (induct A arbitrary: B)
+    (simp_all add: top_def [symmetric] Inf_insert inf_commute fold_fun_comm)
+qed
+
+lemma sup_Sup_fold_sup:
+  fixes A :: "'a::complete_lattice set"
+  assumes "finite A"
+  shows "sup B (Sup A) = fold sup B A"
+proof -
+  interpret fun_left_comm_idem sup by (fact fun_left_comm_idem_sup)
+  from `finite A` show ?thesis by (induct A arbitrary: B)
+    (simp_all add: bot_def [symmetric] Sup_insert sup_commute fold_fun_comm)
+qed
+
+lemma Inf_fold_inf:
+  fixes A :: "'a::complete_lattice set"
+  assumes "finite A"
+  shows "Inf A = fold inf top A"
+  using assms inf_Inf_fold_inf [of A top] by (simp add: inf_absorb2)
+
+lemma Sup_fold_sup:
+  fixes A :: "'a::complete_lattice set"
+  assumes "finite A"
+  shows "Sup A = fold sup bot A"
+  using assms sup_Sup_fold_sup [of A bot] by (simp add: sup_absorb2)
+
 
 subsection {* Functorial set operations *}
 
@@ -105,41 +149,13 @@
     by (simp add: minus_fold_remove [of _ A] fold_set)
 qed
 
-lemma Inter_set:
-  "Inter (set As) = foldl (op \<inter>) UNIV As"
-proof -
-  have "fold (op \<inter>) UNIV (set As) = foldl (\<lambda>y x. x \<inter> y) UNIV As"
-    by (rule fun_left_comm_idem.fold_set, unfold_locales, auto)
-  then show ?thesis
-    by (simp only: Inter_fold_inter finite_set Int_commute)
-qed
-
-lemma Union_set:
-  "Union (set As) = foldl (op \<union>) {} As"
-proof -
-  have "fold (op \<union>) {} (set As) = foldl (\<lambda>y x. x \<union> y) {} As"
-    by (rule fun_left_comm_idem.fold_set, unfold_locales, auto)
-  then show ?thesis
-    by (simp only: Union_fold_union finite_set Un_commute)
-qed
+lemma INFI_set_fold: -- "FIXME move to List.thy"
+  "INFI (set xs) f = foldl (\<lambda>y x. inf (f x) y) top xs"
+  unfolding INFI_def image_set Inf_set_fold foldl_map by (simp add: inf_commute)
 
-lemma INTER_set:
-  "INTER (set As) f = foldl (\<lambda>B A. f A \<inter> B) UNIV As"
-proof -
-  have "fold (\<lambda>A. op \<inter> (f A)) UNIV (set As) = foldl (\<lambda>B A. f A \<inter> B) UNIV As"
-    by (rule fun_left_comm_idem.fold_set, unfold_locales, auto)
-  then show ?thesis
-    by (simp only: INTER_fold_inter finite_set)
-qed
-
-lemma UNION_set:
-  "UNION (set As) f = foldl (\<lambda>B A. f A \<union> B) {} As"
-proof -
-  have "fold (\<lambda>A. op \<union> (f A)) {} (set As) = foldl (\<lambda>B A. f A \<union> B) {} As"
-    by (rule fun_left_comm_idem.fold_set, unfold_locales, auto)
-  then show ?thesis
-    by (simp only: UNION_fold_union finite_set)
-qed
+lemma SUPR_set_fold: -- "FIXME move to List.thy"
+  "SUPR (set xs) f = foldl (\<lambda>y x. sup (f x) y) bot xs"
+  unfolding SUPR_def image_set Sup_set_fold foldl_map by (simp add: sup_commute)
 
 
 subsection {* Derived set operations *}
--- a/src/HOL/Number_Theory/Primes.thy	Fri Dec 04 14:34:24 2009 +0100
+++ b/src/HOL/Number_Theory/Primes.thy	Fri Dec 04 15:30:36 2009 +0100
@@ -360,16 +360,15 @@
     from prime_dvd_mult_nat[OF p pab']
     have "p dvd a \<or> p dvd b" .
     moreover
-    {assume pa: "p dvd a"
-      have pnba: "p^n dvd b*a" using pab by (simp add: mult_commute)
+    { assume pa: "p dvd a"
       from coprime_common_divisor_nat [OF ab, OF pa] p have "\<not> p dvd b" by auto
       with p have "coprime b p"
         by (subst gcd_commute_nat, intro prime_imp_coprime_nat)
       hence pnb: "coprime (p^n) b"
         by (subst gcd_commute_nat, rule coprime_exp_nat)
-      from coprime_divprod_nat[OF pnba pnb] have ?thesis by blast }
+      from coprime_dvd_mult_nat[OF pnb pab] have ?thesis by blast }
     moreover
-    {assume pb: "p dvd b"
+    { assume pb: "p dvd b"
       have pnba: "p^n dvd b*a" using pab by (simp add: mult_commute)
       from coprime_common_divisor_nat [OF ab, of p] pb p have "\<not> p dvd a"
         by auto
@@ -377,7 +376,7 @@
         by (subst gcd_commute_nat, intro prime_imp_coprime_nat)
       hence pna: "coprime (p^n) a"
         by (subst gcd_commute_nat, rule coprime_exp_nat)
-      from coprime_divprod_nat[OF pab pna] have ?thesis by blast }
+      from coprime_dvd_mult_nat[OF pna pnba] have ?thesis by blast }
     ultimately have ?thesis by blast}
   ultimately show ?thesis by blast
 qed
--- a/src/HOL/Set.thy	Fri Dec 04 14:34:24 2009 +0100
+++ b/src/HOL/Set.thy	Fri Dec 04 15:30:36 2009 +0100
@@ -1556,6 +1556,9 @@
 
 lemma imp_refl: "P --> P" ..
 
+lemma not_mono: "Q --> P ==> ~ P --> ~ Q"
+  by iprover
+
 lemma ex_mono: "(!!x. P x --> Q x) ==> (EX x. P x) --> (EX x. Q x)"
   by iprover
 
@@ -1576,9 +1579,6 @@
 lemma eq_to_mono: "a = b ==> c = d ==> b --> d ==> a --> c"
   by iprover
 
-lemma eq_to_mono2: "a = b ==> c = d ==> ~ b --> ~ d ==> ~ a --> ~ c"
-  by iprover
-
 
 subsubsection {* Inverse image of a function *}
 
@@ -1724,7 +1724,6 @@
 val contra_subsetD = @{thm contra_subsetD}
 val distinct_lemma = @{thm distinct_lemma}
 val eq_to_mono = @{thm eq_to_mono}
-val eq_to_mono2 = @{thm eq_to_mono2}
 val equalityCE = @{thm equalityCE}
 val equalityD1 = @{thm equalityD1}
 val equalityD2 = @{thm equalityD2}
--- a/src/HOL/Tools/sat_solver.ML	Fri Dec 04 14:34:24 2009 +0100
+++ b/src/HOL/Tools/sat_solver.ML	Fri Dec 04 15:30:36 2009 +0100
@@ -311,7 +311,7 @@
     fun int_from_string s =
       case Int.fromString s of
         SOME i => i
-      | NONE   => error ("token " ^ quote s ^ "in DIMACS CNF file is not a number")
+      | NONE   => error ("token " ^ quote s ^ " in DIMACS CNF file is not a number")
     (* int list -> int list list *)
     fun clauses xs =
       let
@@ -350,7 +350,7 @@
     o (map (map literal_from_int))
     o clauses
     o (map int_from_string)
-    o (maps (String.fields (fn c => c mem [#" ", #"\t", #"\n"])))
+    o (maps (String.tokens (fn c => c mem [#" ", #"\t", #"\n"])))
     o filter_preamble
     o filter (fn l => l <> "")
     o split_lines
--- a/src/Pure/General/xml.scala	Fri Dec 04 14:34:24 2009 +0100
+++ b/src/Pure/General/xml.scala	Fri Dec 04 15:30:36 2009 +0100
@@ -86,18 +86,10 @@
   }
 
 
-  /* document object model (DOM) */
-
-  def document(tree: Tree, styles: String*) = {
-    val doc = DocumentBuilderFactory.newInstance.newDocumentBuilder.newDocument
-    doc.appendChild(doc.createProcessingInstruction("xml", "version=\"1.0\""))
+  /* document object model (W3C DOM) */
 
-    for (style <- styles) {
-      doc.appendChild(doc.createProcessingInstruction("xml-stylesheet",
-        "href=\"" + style + "\" type=\"text/css\""))
-    }
-
-    // main body
+  def document_node(doc: Document, tree: Tree): Node =
+  {
     def DOM(tr: Tree): Node = tr match {
       case Elem(name, atts, ts) => {
         val node = doc.createElement(name)
@@ -107,9 +99,21 @@
       }
       case Text(txt) => doc.createTextNode(txt)
     }
+    DOM(tree)
+  }
+
+  def document(tree: Tree, styles: String*): Document =
+  {
+    val doc = DocumentBuilderFactory.newInstance.newDocumentBuilder.newDocument
+    doc.appendChild(doc.createProcessingInstruction("xml", "version=\"1.0\""))
+
+    for (style <- styles) {
+      doc.appendChild(doc.createProcessingInstruction("xml-stylesheet",
+        "href=\"" + style + "\" type=\"text/css\""))
+    }
     val root_elem = tree match {
-      case Elem(_, _, _) => DOM(tree)
-      case Text(_) => DOM(Elem(Markup.ROOT, Nil, List(tree)))
+      case Elem(_, _, _) => document_node(doc, tree)
+      case Text(_) => document_node(doc, (Elem(Markup.ROOT, Nil, List(tree))))
     }
     doc.appendChild(root_elem)
     doc
--- a/src/Pure/type.ML	Fri Dec 04 14:34:24 2009 +0100
+++ b/src/Pure/type.ML	Fri Dec 04 15:30:36 2009 +0100
@@ -19,6 +19,7 @@
     types: decl Name_Space.table,
     log_types: string list}
   val empty_tsig: tsig
+  val build_tsig: (Name_Space.T * Sorts.algebra) * sort * decl Name_Space.table -> tsig
   val defaultS: tsig -> sort
   val logical_types: tsig -> string list
   val eq_sort: tsig -> sort * sort -> bool
--- a/src/Tools/Code/code_preproc.ML	Fri Dec 04 14:34:24 2009 +0100
+++ b/src/Tools/Code/code_preproc.ML	Fri Dec 04 15:30:36 2009 +0100
@@ -111,7 +111,7 @@
       -- perhaps by means of upcoming code certificates with a corresponding
          preprocessor protocol*);
 
-fun rhs_conv conv thm = Thm.transitive thm ((conv o Thm.rhs_of) thm);
+fun trans_conv_rule conv thm = Thm.transitive thm ((conv o Thm.rhs_of) thm);
 
 fun eqn_conv conv =
   let
@@ -148,7 +148,7 @@
   in
     ct
     |> Simplifier.rewrite pre
-    |> rhs_conv (AxClass.unoverload_conv thy)
+    |> trans_conv_rule (AxClass.unoverload_conv thy)
   end;
 
 fun postprocess_conv thy ct =
@@ -157,7 +157,7 @@
   in
     ct
     |> AxClass.overload_conv thy
-    |> rhs_conv (Simplifier.rewrite post)
+    |> trans_conv_rule (Simplifier.rewrite post)
   end;
 
 fun postprocess_term thy = term_of_conv thy (postprocess_conv thy);