--- a/src/HOL/More_Set.thy Fri Jan 06 21:48:45 2012 +0100
+++ b/src/HOL/More_Set.thy Fri Jan 06 22:16:01 2012 +0100
@@ -7,91 +7,6 @@
imports List
begin
-subsection {* Basic set operations *}
-
-lemma is_empty_set [code]:
- "Set.is_empty (set xs) \<longleftrightarrow> List.null xs"
- by (simp add: Set.is_empty_def null_def)
-
-lemma empty_set [code]:
- "{} = set []"
- by simp
-
-
-subsection {* Functorial set operations *}
-
-lemma union_set_fold:
- "set xs \<union> A = fold Set.insert xs A"
-proof -
- interpret comp_fun_idem Set.insert
- by (fact comp_fun_idem_insert)
- show ?thesis by (simp add: union_fold_insert fold_set_fold)
-qed
-
-lemma union_set_foldr:
- "set xs \<union> A = foldr Set.insert xs A"
-proof -
- have "\<And>x y :: 'a. insert y \<circ> insert x = insert x \<circ> insert y"
- by auto
- then show ?thesis by (simp add: union_set_fold foldr_fold)
-qed
-
-lemma minus_set_fold:
- "A - set xs = fold Set.remove xs A"
-proof -
- interpret comp_fun_idem Set.remove
- by (fact comp_fun_idem_remove)
- show ?thesis
- by (simp add: minus_fold_remove [of _ A] fold_set_fold)
-qed
-
-lemma minus_set_foldr:
- "A - set xs = foldr Set.remove xs A"
-proof -
- have "\<And>x y :: 'a. Set.remove y \<circ> Set.remove x = Set.remove x \<circ> Set.remove y"
- by (auto simp add: remove_def)
- then show ?thesis by (simp add: minus_set_fold foldr_fold)
-qed
-
-
-subsection {* Basic operations *}
-
-lemma [code]:
- "x \<in> set xs \<longleftrightarrow> List.member xs x"
- "x \<in> List.coset xs \<longleftrightarrow> \<not> List.member xs x"
- by (simp_all add: member_def)
-
-lemma UNIV_coset [code]:
- "UNIV = List.coset []"
- by simp
-
-lemma insert_code [code]:
- "insert x (set xs) = set (List.insert x xs)"
- "insert x (List.coset xs) = List.coset (removeAll x xs)"
- by simp_all
-
-lemma remove_code [code]:
- "Set.remove x (set xs) = set (removeAll x xs)"
- "Set.remove x (List.coset xs) = List.coset (List.insert x xs)"
- by (simp_all add: remove_def Compl_insert)
-
-lemma Ball_set [code]:
- "Ball (set xs) P \<longleftrightarrow> list_all P xs"
- by (simp add: list_all_iff)
-
-lemma Bex_set [code]:
- "Bex (set xs) P \<longleftrightarrow> list_ex P xs"
- by (simp add: list_ex_iff)
-
-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 {* Functorial operations *}
lemma inter_code [code]:
@@ -152,28 +67,5 @@
"pred_of_set (set xs) = foldr sup (map Predicate.single xs) bot"
by (simp add: pred_of_set_set_fold_sup ac_simps foldr_fold fun_eq_iff)
-
-subsection {* Operations on relations *}
-
-lemma product_code [code]:
- "Product_Type.product (set xs) (set ys) = set [(x, y). x \<leftarrow> xs, y \<leftarrow> ys]"
- by (auto simp add: Product_Type.product_def)
-
-lemma Id_on_set [code]:
- "Id_on (set xs) = set [(x, x). x \<leftarrow> xs]"
- by (auto simp add: Id_on_def)
-
-lemma trancl_set_ntrancl [code]:
- "trancl (set xs) = ntrancl (card (set xs) - 1) (set xs)"
- by (simp add: finite_trancl_ntranl)
-
-lemma set_rel_comp [code]:
- "set xys O set yzs = set ([(fst xy, snd yz). xy \<leftarrow> xys, yz \<leftarrow> yzs, snd xy = fst yz])"
- by (auto simp add: Bex_def)
-
-lemma wf_set [code]:
- "wf (set xs) = acyclic (set xs)"
- by (simp add: wf_iff_acyclic_if_finite)
-
end