author | traytel |
Tue, 25 Feb 2014 18:14:26 +0100 | |
changeset 55803 | 74d3fe9031d8 |
parent 55705 | a98a045a6169 |
child 55811 | aa1acc25126b |
permissions | -rw-r--r-- |
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(* Title: HOL/BNF_Comp.thy |
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Author: Dmitriy Traytel, TU Muenchen |
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Copyright 2012 |
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Composition of bounded natural functors. |
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*) |
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header {* Composition of Bounded Natural Functors *} |
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theory BNF_Comp |
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imports Basic_BNFs |
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begin |
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lemma empty_natural: "(\<lambda>_. {}) o f = image g o (\<lambda>_. {})" |
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by (rule ext) simp |
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lemma Union_natural: "Union o image (image f) = image f o Union" |
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by (rule ext) (auto simp only: comp_apply) |
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lemma in_Union_o_assoc: "x \<in> (Union o gset o gmap) A \<Longrightarrow> x \<in> (Union o (gset o gmap)) A" |
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by (unfold comp_assoc) |
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lemma comp_single_set_bd: |
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assumes fbd_Card_order: "Card_order fbd" and |
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fset_bd: "\<And>x. |fset x| \<le>o fbd" and |
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gset_bd: "\<And>x. |gset x| \<le>o gbd" |
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shows "|\<Union>(fset ` gset x)| \<le>o gbd *c fbd" |
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apply (subst sym[OF SUP_def]) |
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apply (rule ordLeq_transitive) |
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apply (rule card_of_UNION_Sigma) |
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apply (subst SIGMA_CSUM) |
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apply (rule ordLeq_transitive) |
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apply (rule card_of_Csum_Times') |
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apply (rule fbd_Card_order) |
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apply (rule ballI) |
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apply (rule fset_bd) |
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apply (rule ordLeq_transitive) |
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apply (rule cprod_mono1) |
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apply (rule gset_bd) |
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apply (rule ordIso_imp_ordLeq) |
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apply (rule ordIso_refl) |
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apply (rule Card_order_cprod) |
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done |
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lemma Union_image_insert: "\<Union>(f ` insert a B) = f a \<union> \<Union>(f ` B)" |
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by simp |
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lemma Union_image_empty: "A \<union> \<Union>(f ` {}) = A" |
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by simp |
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lemma image_o_collect: "collect ((\<lambda>f. image g o f) ` F) = image g o collect F" |
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by (rule ext) (auto simp add: collect_def) |
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lemma conj_subset_def: "A \<subseteq> {x. P x \<and> Q x} = (A \<subseteq> {x. P x} \<and> A \<subseteq> {x. Q x})" |
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by blast |
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lemma UN_image_subset: "\<Union>(f ` g x) \<subseteq> X = (g x \<subseteq> {x. f x \<subseteq> X})" |
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by blast |
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lemma comp_set_bd_Union_o_collect: "|\<Union>\<Union>((\<lambda>f. f x) ` X)| \<le>o hbd \<Longrightarrow> |(Union \<circ> collect X) x| \<le>o hbd" |
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by (unfold comp_apply collect_def SUP_def) |
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lemma wpull_cong: |
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"\<lbrakk>A' = A; B1' = B1; B2' = B2; wpull A B1 B2 f1 f2 p1 p2\<rbrakk> \<Longrightarrow> wpull A' B1' B2' f1 f2 p1 p2" |
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by simp |
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lemma Grp_fst_snd: "(Grp (Collect (split R)) fst)^--1 OO Grp (Collect (split R)) snd = R" |
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unfolding Grp_def fun_eq_iff relcompp.simps by auto |
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lemma OO_Grp_cong: "A = B \<Longrightarrow> (Grp A f)^--1 OO Grp A g = (Grp B f)^--1 OO Grp B g" |
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by (rule arg_cong) |
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lemma vimage2p_relcompp_mono: "R OO S \<le> T \<Longrightarrow> |
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vimage2p f g R OO vimage2p g h S \<le> vimage2p f h T" |
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unfolding vimage2p_def by auto |
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lemma type_copy_map_cong0: "M (g x) = N (h x) \<Longrightarrow> (f o M o g) x = (f o N o h) x" |
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by auto |
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lemma type_copy_set_bd: "(\<And>y. |S y| \<le>o bd) \<Longrightarrow> |(S o Rep) x| \<le>o bd" |
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by auto |
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lemma vimage2p_cong: "R = S \<Longrightarrow> vimage2p f g R = vimage2p f g S" |
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by simp |
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context |
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fixes Rep Abs |
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assumes type_copy: "type_definition Rep Abs UNIV" |
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begin |
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lemma type_copy_map_id0: "M = id \<Longrightarrow> Abs o M o Rep = id" |
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using type_definition.Rep_inverse[OF type_copy] by auto |
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lemma type_copy_map_comp0: "M = M1 o M2 \<Longrightarrow> f o M o g = (f o M1 o Rep) o (Abs o M2 o g)" |
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using type_definition.Abs_inverse[OF type_copy UNIV_I] by auto |
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lemma type_copy_set_map0: "S o M = image f o S' \<Longrightarrow> (S o Rep) o (Abs o M o g) = image f o (S' o g)" |
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using type_definition.Abs_inverse[OF type_copy UNIV_I] by (auto simp: o_def fun_eq_iff) |
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lemma type_copy_wit: "x \<in> (S o Rep) (Abs y) \<Longrightarrow> x \<in> S y" |
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using type_definition.Abs_inverse[OF type_copy UNIV_I] by auto |
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lemma type_copy_vimage2p_Grp_Rep: "vimage2p f Rep (Grp (Collect P) h) = |
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Grp (Collect (\<lambda>x. P (f x))) (Abs o h o f)" |
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unfolding vimage2p_def Grp_def fun_eq_iff |
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by (auto simp: type_definition.Abs_inverse[OF type_copy UNIV_I] |
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type_definition.Rep_inverse[OF type_copy] dest: sym) |
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lemma type_copy_vimage2p_Grp_Abs: |
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"\<And>h. vimage2p g Abs (Grp (Collect P) h) = Grp (Collect (\<lambda>x. P (g x))) (Rep o h o g)" |
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unfolding vimage2p_def Grp_def fun_eq_iff |
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by (auto simp: type_definition.Abs_inverse[OF type_copy UNIV_I] |
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type_definition.Rep_inverse[OF type_copy] dest: sym) |
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lemma vimage2p_relcompp_converse: |
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"vimage2p f g (R^--1 OO S) = (vimage2p Rep f R)^--1 OO vimage2p Rep g S" |
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unfolding vimage2p_def relcompp.simps conversep.simps fun_eq_iff image_def |
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by (metis surjD[OF type_definition.Rep_range[OF type_copy]]) |
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end |
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ML_file "Tools/BNF/bnf_comp_tactics.ML" |
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ML_file "Tools/BNF/bnf_comp.ML" |
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end |