author | urbanc |
Wed, 01 Mar 2006 00:04:52 +0100 | |
changeset 19158 | 3cca1e0a2a79 |
parent 19157 | 6e4ce7402dbe |
child 19168 | c8faffc8e6fb |
permissions | -rw-r--r-- |
19157
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1 |
(* $Id$ *) |
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2 |
theory Iteration |
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3 |
imports "../nominal" |
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4 |
begin |
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5 |
|
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6 |
atom_decl name |
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7 |
|
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8 |
nominal_datatype lam = Var "name" |
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9 |
| App "lam" "lam" |
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10 |
| Lam "\<guillemotleft>name\<guillemotright>lam" ("Lam [_]._" [100,100] 100) |
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11 |
|
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12 |
types 'a f1_ty = "name\<Rightarrow>('a::pt_name)" |
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13 |
'a f2_ty = "'a\<Rightarrow>'a\<Rightarrow>('a::pt_name)" |
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14 |
'a f3_ty = "name\<Rightarrow>'a\<Rightarrow>('a::pt_name)" |
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15 |
|
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16 |
consts |
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17 |
it :: "'a f1_ty \<Rightarrow> 'a f2_ty \<Rightarrow> 'a f3_ty \<Rightarrow> (lam \<times> (name prm \<Rightarrow> 'a::pt_name)) set" |
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18 |
|
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19 |
inductive "it f1 f2 f3" |
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20 |
intros |
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21 |
it1: "(Var a,\<lambda>pi. f1(pi\<bullet>a)) \<in> it f1 f2 f3" |
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22 |
it2: "\<lbrakk>(t1,r1) \<in> it f1 f2 f3; (t2,r2) \<in> it f1 f2 f3\<rbrakk> \<Longrightarrow> |
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23 |
(App t1 t2,\<lambda>pi. f2 (r1 pi) (r2 pi)) \<in> it f1 f2 f3" |
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24 |
it3: "(t,r) \<in> it f1 f2 f3 \<Longrightarrow> |
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25 |
(Lam [a].t,\<lambda>pi. fresh_fun (\<lambda>a'. f3 a' (r (pi@[(a,a')])))) \<in> it f1 f2 f3" |
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26 |
|
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27 |
constdefs |
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28 |
itfun' :: "'a f1_ty \<Rightarrow> 'a f2_ty \<Rightarrow> 'a f3_ty \<Rightarrow> lam \<Rightarrow> name prm \<Rightarrow> ('a::pt_name)" |
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29 |
"itfun' f1 f2 f3 t \<equiv> (THE y. (t,y) \<in> it f1 f2 f3)" |
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30 |
|
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31 |
itfun :: "'a f1_ty \<Rightarrow> 'a f2_ty \<Rightarrow> 'a f3_ty \<Rightarrow> lam \<Rightarrow> ('a::pt_name)" |
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32 |
"itfun f1 f2 f3 t \<equiv> itfun' f1 f2 f3 t ([]::name prm)" |
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33 |
|
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34 |
lemma it_total: |
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35 |
shows "\<exists>r. (t,r) \<in> it f1 f2 f3" |
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36 |
apply(induct t rule: lam.induct_weak) |
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37 |
apply(auto intro: it.intros) |
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38 |
done |
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39 |
|
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40 |
lemma it_prm_eq: |
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41 |
assumes a: "(t,y) \<in> it f1 f2 f3" |
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42 |
and b: "pi1 \<triangleq> pi2" |
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43 |
shows "y pi1 = y pi2" |
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44 |
using a b |
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45 |
apply(induct fixing: pi1 pi2) |
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46 |
apply(auto simp add: pt3[OF pt_name_inst]) |
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47 |
apply(rule_tac f="fresh_fun" in arg_cong) |
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48 |
apply(auto simp add: expand_fun_eq) |
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49 |
apply(drule_tac x="pi1@[(a,x)]" in meta_spec) |
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50 |
apply(drule_tac x="pi2@[(a,x)]" in meta_spec) |
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51 |
apply(force simp add: prm_eq_def pt2[OF pt_name_inst]) |
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52 |
done |
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53 |
|
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54 |
lemma f3_freshness_conditions_simple: |
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55 |
fixes f3::"('a::pt_name) f3_ty" |
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56 |
and y ::"name prm \<Rightarrow> 'a::pt_name" |
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57 |
and a ::"name" |
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58 |
and pi::"name prm" |
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59 |
assumes a: "finite ((supp f3)::name set)" |
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60 |
and b: "finite ((supp y)::name set)" |
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parents:
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61 |
and c: "\<exists>(a::name). a\<sharp>f3 \<and> (\<forall>(y::'a::pt_name). a\<sharp>f3 a y)" |
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parents:
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62 |
shows "\<exists>(a''::name). a''\<sharp>(\<lambda>a'. f3 a' (y (pi@[(a,a')]))) \<and> a''\<sharp>(\<lambda>a'. f3 a' (y (pi@[(a,a')]))) a''" |
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parents:
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63 |
proof - |
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parents:
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64 |
from c obtain a' where d0: "a'\<sharp>f3" and d1: "\<forall>(y::'a::pt_name). a'\<sharp>f3 a' y" by force |
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parents:
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65 |
have "\<exists>(a''::name). a''\<sharp>(f3,a,a',pi,y)" |
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parents:
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66 |
by (rule at_exists_fresh[OF at_name_inst], simp add: supp_prod fs_name1 a b) |
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67 |
then obtain a'' where d2: "a''\<sharp>f3" and d3: "a''\<noteq>a'" and d3b: "a''\<sharp>(f3,a,pi,y)" |
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68 |
by (auto simp add: fresh_prod at_fresh[OF at_name_inst]) |
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parents:
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69 |
have d3c: "a''\<notin>((supp (f3,a,pi,y))::name set)" using d3b by (simp add: fresh_def) |
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parents:
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70 |
have d4: "a''\<sharp>f3 a'' (y (pi@[(a,a'')]))" |
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parents:
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71 |
proof - |
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parents:
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72 |
have d5: "[(a'',a')]\<bullet>f3 = f3" |
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parents:
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73 |
by (rule pt_fresh_fresh[OF pt_name_inst, OF at_name_inst, OF d2, OF d0]) |
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74 |
from d1 have "\<forall>(y::'a::pt_name). ([(a'',a')]\<bullet>a')\<sharp>([(a'',a')]\<bullet>(f3 a' y))" |
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parents:
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75 |
by (simp add: pt_fresh_bij[OF pt_name_inst, OF at_name_inst]) |
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parents:
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76 |
hence "\<forall>(y::'a::pt_name). a''\<sharp>(f3 a'' ([(a'',a')]\<bullet>y))" using d3 d5 |
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parents:
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77 |
by (simp add: at_calc[OF at_name_inst] pt_fun_app_eq[OF pt_name_inst, OF at_name_inst]) |
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parents:
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78 |
hence "a''\<sharp>(f3 a'' ([(a'',a')]\<bullet>((rev [(a'',a')])\<bullet>(y (pi@[(a,a'')])))))" by force |
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parents:
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79 |
thus ?thesis by (simp only: pt_pi_rev[OF pt_name_inst, OF at_name_inst]) |
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parents:
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80 |
qed |
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parents:
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81 |
have d6: "a''\<sharp>(\<lambda>a'. f3 a' (y (pi@[(a,a')])))" |
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parents:
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82 |
proof - |
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parents:
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83 |
from a b have d7: "finite ((supp (f3,a,pi,y))::name set)" by (simp add: supp_prod fs_name1) |
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parents:
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84 |
have "((supp (f3,a,pi,y))::name set) supports (\<lambda>a'. f3 a' (y (pi@[(a,a')])))" |
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parents:
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85 |
by (supports_simp add: perm_append) |
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parents:
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86 |
with d7 d3c show ?thesis by (simp add: supports_fresh) |
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parents:
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87 |
qed |
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parents:
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88 |
from d6 d4 show ?thesis by force |
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parents:
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89 |
qed |
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parents:
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90 |
|
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parents:
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91 |
text {* FIXME: this lemma should be thrown out somehow *} |
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parents:
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92 |
lemma f3_freshness_conditions: |
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parents:
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93 |
fixes f3::"('a::pt_name) f3_ty" |
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parents:
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|
94 |
and y ::"name prm \<Rightarrow> 'a::pt_name" |
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parents:
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|
95 |
and a ::"name" |
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parents:
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96 |
and pi1::"name prm" |
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parents:
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97 |
and pi2::"name prm" |
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parents:
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98 |
assumes a: "finite ((supp f3)::name set)" |
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parents:
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99 |
and b: "finite ((supp y)::name set)" |
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parents:
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|
100 |
and c: "\<exists>(a::name). a\<sharp>f3 \<and> (\<forall>(y::'a::pt_name). a\<sharp>f3 a y)" |
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parents:
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101 |
shows "\<exists>(a''::name). a''\<sharp>(\<lambda>a'. f3 a' (y (pi1@[(a,a')]@pi2))) \<and> |
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parents:
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102 |
a''\<sharp>(\<lambda>a'. f3 a' (y (pi1@[(a,a')]@pi2))) a''" |
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parents:
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103 |
proof - |
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parents:
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|
104 |
from c obtain a' where d0: "a'\<sharp>f3" and d1: "\<forall>(y::'a::pt_name). a'\<sharp>f3 a' y" by force |
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urbanc
parents:
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|
105 |
have "\<exists>(a''::name). a''\<sharp>(f3,a,a',pi1,pi2,y)" |
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parents:
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|
106 |
by (rule at_exists_fresh[OF at_name_inst], simp add: supp_prod fs_name1 a b) |
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parents:
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|
107 |
then obtain a'' where d2: "a''\<sharp>f3" and d3: "a''\<noteq>a'" and d3b: "a''\<sharp>(f3,a,pi1,pi2,y)" |
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parents:
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|
108 |
by (auto simp add: fresh_prod at_fresh[OF at_name_inst]) |
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urbanc
parents:
diff
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|
109 |
have d3c: "a''\<notin>((supp (f3,a,pi1,pi2,y))::name set)" using d3b by (simp add: fresh_def) |
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urbanc
parents:
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|
110 |
have d4: "a''\<sharp>f3 a'' (y (pi1@[(a,a'')]@pi2))" |
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parents:
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|
111 |
proof - |
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parents:
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112 |
have d5: "[(a'',a')]\<bullet>f3 = f3" |
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parents:
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|
113 |
by (rule pt_fresh_fresh[OF pt_name_inst, OF at_name_inst, OF d2, OF d0]) |
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parents:
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|
114 |
from d1 have "\<forall>(y::'a::pt_name). ([(a'',a')]\<bullet>a')\<sharp>([(a'',a')]\<bullet>(f3 a' y))" |
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parents:
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115 |
by (simp add: pt_fresh_bij[OF pt_name_inst, OF at_name_inst]) |
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parents:
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|
116 |
hence "\<forall>(y::'a::pt_name). a''\<sharp>(f3 a'' ([(a'',a')]\<bullet>y))" using d3 d5 |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
117 |
by (simp add: at_calc[OF at_name_inst] pt_fun_app_eq[OF pt_name_inst, OF at_name_inst]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
118 |
hence "a''\<sharp>(f3 a'' ([(a'',a')]\<bullet>((rev [(a'',a')])\<bullet>(y (pi1@[(a,a'')]@pi2)))))" by force |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
119 |
thus ?thesis by (simp only: pt_pi_rev[OF pt_name_inst, OF at_name_inst]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
120 |
qed |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
121 |
have d6: "a''\<sharp>(\<lambda>a'. f3 a' (y (pi1@[(a,a')]@pi2)))" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
122 |
proof - |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
123 |
from a b have d7: "finite ((supp (f3,a,pi1,pi2,y))::name set)" by (simp add: supp_prod fs_name1) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
124 |
have e: "((supp (f3,a,pi1,pi2,y))::name set) supports (\<lambda>a'. f3 a' (y (pi1@[(a,a')]@pi2)))" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
125 |
by (supports_simp add: perm_append) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
126 |
from e d7 d3c show ?thesis by (rule supports_fresh) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
127 |
qed |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
128 |
from d6 d4 show ?thesis by force |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
129 |
qed |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
130 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
131 |
lemma it_fin_supp: |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
132 |
assumes f: "finite ((supp (f1,f2,f3))::name set)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
133 |
and c: "\<exists>(a::name). a\<sharp>f3 \<and> (\<forall>(r::'a::pt_name). a\<sharp>f3 a r)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
134 |
and a: "(t,r) \<in> it f1 f2 f3" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
135 |
shows "finite ((supp r)::name set)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
136 |
using a |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
137 |
proof (induct) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
138 |
case it1 thus ?case using f by (finite_guess add: supp_prod fs_name1) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
139 |
next |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
140 |
case it2 thus ?case using f by (finite_guess add: supp_prod fs_name1) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
141 |
next |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
142 |
case (it3 c r t) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
143 |
have ih: "finite ((supp r)::name set)" by fact |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
144 |
let ?g' = "\<lambda>pi a'. f3 a' (r (pi@[(c,a')]))" --"helper function" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
145 |
--"two facts used by fresh_fun_equiv" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
146 |
have fact1: "\<forall>pi. finite ((supp (?g' pi))::name set)" using f ih |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
147 |
by (rule_tac allI, finite_guess add: perm_append supp_prod fs_name1) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
148 |
have fact2: "\<forall>pi. \<exists>(a''::name). a''\<sharp>(?g' pi) \<and> a''\<sharp>((?g' pi) a'')" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
149 |
proof |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
150 |
fix pi::"name prm" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
151 |
show "\<exists>(a''::name). a''\<sharp>(?g' pi) \<and> a''\<sharp>((?g' pi) a'')" using f c ih |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
152 |
by (rule_tac f3_freshness_conditions_simple, simp_all add: supp_prod) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
153 |
qed |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
154 |
show ?case using fact1 fact2 ih f |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
155 |
by (finite_guess add: fresh_fun_equiv[OF pt_name_inst, OF at_name_inst] |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
156 |
perm_append supp_prod fs_name1) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
157 |
qed |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
158 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
159 |
lemma it_trans: |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
160 |
shows "\<lbrakk>(t,r)\<in>rec f1 f2 f3; r=r'\<rbrakk> \<Longrightarrow> (t,r')\<in>rec f1 f2 f3" by simp |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
161 |
|
19158 | 162 |
lemma it_perm_aux: |
19157
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
163 |
assumes f: "finite ((supp (f1,f2,f3))::name set)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
164 |
and c: "\<exists>(a::name). a\<sharp>f3 \<and> (\<forall>(y::'a::pt_name). a\<sharp>f3 a y)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
165 |
and a: "(t,y) \<in> it f1 f2 f3" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
166 |
shows "(pi1\<bullet>t, \<lambda>pi2. y (pi2@pi1)) \<in> it f1 f2 f3" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
167 |
using a |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
168 |
proof (induct) |
19158 | 169 |
case (it1 c) show ?case by (auto simp add: pt_name2, rule it.intros) |
19157
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
170 |
next |
19158 | 171 |
case (it2 t1 t2 r1 r2) thus ?case by (auto intro: it.intros) |
19157
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
172 |
next |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
173 |
case (it3 c r t) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
174 |
let ?g = "\<lambda>pi' a'. f3 a' (r (pi'@[(pi1\<bullet>c,a')]@pi1))" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
175 |
and ?h = "\<lambda>pi' a'. f3 a' (r ((pi'@pi1)@[(c,a')]))" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
176 |
have ih': "(t,r) \<in> it f1 f2 f3" by fact |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
177 |
hence fin_r: "finite ((supp r)::name set)" using f c by (auto intro: it_fin_supp) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
178 |
have ih: "(pi1\<bullet>t,\<lambda>pi2. r (pi2@pi1)) \<in> it f1 f2 f3" by fact |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
179 |
hence "(Lam [(pi1\<bullet>c)].(pi1\<bullet>t),\<lambda>pi'. fresh_fun (?g pi')) \<in> it f1 f2 f3" |
19158 | 180 |
by (auto intro: it_trans it.intros) (* FIXME: wy is it_trans needed ? *) |
19157
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
181 |
moreover |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
182 |
have "\<forall>pi'. (fresh_fun (?g pi')) = (fresh_fun (?h pi'))" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
183 |
proof |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
184 |
fix pi'::"name prm" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
185 |
have fin_g: "finite ((supp (?g pi'))::name set)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
186 |
using f fin_r by (finite_guess add: perm_append supp_prod fs_name1) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
187 |
have fr_g: "\<exists>(a::name). (a\<sharp>(?g pi')\<and> a\<sharp>(?g pi' a))" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
188 |
using f c fin_r by (rule_tac f3_freshness_conditions, simp_all add: supp_prod) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
189 |
have fin_h: "finite ((supp (?h pi'))::name set)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
190 |
using f fin_r by (finite_guess add: perm_append supp_prod fs_name1) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
191 |
have fr_h: "\<exists>(a::name). (a\<sharp>(?h pi')\<and> a\<sharp>(?h pi' a))" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
192 |
using f c fin_r by (rule_tac f3_freshness_conditions_simple, simp_all add: supp_prod) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
193 |
show "fresh_fun (?g pi') = fresh_fun (?h pi')" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
194 |
proof - |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
195 |
have "\<exists>(d::name). d\<sharp>(?g pi', ?h pi', pi1)" using fin_g fin_h |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
196 |
by (rule_tac at_exists_fresh[OF at_name_inst], simp only: supp_prod finite_Un fs_name1, simp) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
197 |
then obtain d::"name" where f1: "d\<sharp>?g pi'" and f2: "d\<sharp>?h pi'" and f3: "d\<sharp>(rev pi1)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
198 |
by (auto simp only: fresh_prod fresh_list_rev) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
199 |
have "?g pi' d = ?h pi' d" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
200 |
proof - |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
201 |
have "r (pi'@[(pi1\<bullet>c,d)]@pi1) = r ((pi'@pi1)@[(c,d)])" using f3 ih' |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
202 |
by (auto intro!: it_prm_eq at_prm_eq_append[OF at_name_inst] |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
203 |
simp only: append_assoc at_ds10[OF at_name_inst]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
204 |
then show ?thesis by simp |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
205 |
qed |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
206 |
then show "fresh_fun (?g pi') = fresh_fun (?h pi')" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
207 |
using f1 fin_g fr_g f2 fin_h fr_h |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
208 |
by (simp add: fresh_fun_app[OF pt_name_inst, OF at_name_inst]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
209 |
qed |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
210 |
qed |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
211 |
hence "(\<lambda>pi'. (fresh_fun (?g pi'))) = (\<lambda>pi'. (fresh_fun (?h pi')))" by (simp add: expand_fun_eq) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
212 |
ultimately show ?case by simp |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
213 |
qed |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
214 |
|
19158 | 215 |
lemma it_perm: |
19157
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
216 |
assumes f: "finite ((supp (f1,f2,f3))::name set)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
217 |
and c: "\<exists>(a::name). a\<sharp>f3 \<and> (\<forall>(y::'a::pt_name). a\<sharp>f3 a y)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
218 |
and a: "(pi\<bullet>t,y) \<in> it f1 f2 f3" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
219 |
shows "(t, \<lambda>pi2. y (pi2@(rev pi))) \<in> it f1 f2 f3" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
220 |
proof - |
19158 | 221 |
from a have "((rev pi)\<bullet>(pi\<bullet>t),\<lambda>pi2. y (pi2@(rev pi))) \<in> it f1 f2 f3" using f c |
222 |
by (simp add: it_perm_aux) |
|
19157
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
223 |
thus ?thesis by perm_simp |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
224 |
qed |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
225 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
226 |
lemma it_unique: |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
227 |
assumes f: "finite ((supp (f1,f2,f3))::name set)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
228 |
and c: "\<exists>(a::name). a\<sharp>f3 \<and> (\<forall>(y::'a::pt_name). a\<sharp>f3 a y)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
229 |
and a: "(t,y) \<in> it f1 f2 f3" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
230 |
and b: "(t,y') \<in> it f1 f2 f3" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
231 |
shows "y pi = y' pi" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
232 |
using a b |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
233 |
proof (induct fixing: y' pi) |
19158 | 234 |
case (it1 c) thus ?case by (cases, simp_all add: lam.inject) |
19157
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
235 |
next |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
236 |
case (it2 r1 r2 t1 t2) |
19158 | 237 |
with `(App t1 t2, y') \<in> it f1 f2 f3` show ?case |
19157
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
238 |
by (cases, simp_all (no_asm_use) add: lam.inject, force) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
239 |
next |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
240 |
case (it3 c r t r') |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
241 |
have "(t,r) \<in> it f1 f2 f3" by fact |
19158 | 242 |
hence fin_r: "finite ((supp r)::name set)" using f c by (simp only: it_fin_supp) |
19157
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
243 |
have ih: "\<And>r' pi. (t,r') \<in> it f1 f2 f3 \<Longrightarrow> r pi = r' pi" by fact |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
244 |
have "(Lam [c].t, r') \<in> it f1 f2 f3" by fact |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
245 |
then show "fresh_fun (\<lambda>a'. f3 a' (r (pi@[(c,a')]))) = r' pi" |
19158 | 246 |
proof (cases, auto simp add: lam.inject) |
19157
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
247 |
fix a::"name" and t'::"lam" and r''::"name prm\<Rightarrow>'a::pt_name" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
248 |
assume i5: "[c].t = [a].t'" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
249 |
and i6: "(t',r'') \<in> it f1 f2 f3" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
250 |
hence fin_r'': "finite ((supp r'')::name set)" using f c by (auto intro: it_fin_supp) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
251 |
let ?g = "\<lambda>a'. f3 a' (r (pi@[(c,a')]))" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
252 |
and ?h = "\<lambda>a'. f3 a' (r'' (pi@[(a,a')]))" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
253 |
show "fresh_fun ?g = fresh_fun ?h" using i5 |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
254 |
proof (cases "a=c") |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
255 |
case True |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
256 |
have i7: "a=c" by fact |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
257 |
with i5 have i8: "t=t'" by (simp add: alpha) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
258 |
show "fresh_fun ?g = fresh_fun ?h" using i6 i7 i8 ih by simp |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
259 |
next |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
260 |
case False |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
261 |
assume i9: "a\<noteq>c" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
262 |
with i5[symmetric] have i10: "t'=[(a,c)]\<bullet>t" and i11: "a\<sharp>t" by (simp_all add: alpha) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
263 |
have fin_g: "finite ((supp ?g)::name set)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
264 |
using f fin_r by (finite_guess add: perm_append supp_prod fs_name1) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
265 |
have fin_h: "finite ((supp ?h)::name set)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
266 |
using f fin_r'' by (finite_guess add: perm_append supp_prod fs_name1) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
267 |
have fr_g: "\<exists>(a''::name). a''\<sharp>?g \<and> a''\<sharp>(?g a'')" |
19158 | 268 |
using f c fin_r by (simp add: f3_freshness_conditions_simple supp_prod) |
19157
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
269 |
have fr_h: "\<exists>(a''::name). a''\<sharp>?h \<and> a''\<sharp>(?h a'')" |
19158 | 270 |
using f c fin_r'' by (simp add: f3_freshness_conditions_simple supp_prod) |
19157
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
271 |
have "\<exists>(d::name). d\<sharp>(?g,?h,t,a,c)" using fin_g fin_h |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
272 |
by (rule_tac at_exists_fresh[OF at_name_inst], simp only: finite_Un supp_prod fs_name1, simp) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
273 |
then obtain d::"name" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
274 |
where f1: "d\<sharp>?g" and f2: "d\<sharp>?h" and f3: "d\<sharp>t" and f4: "d\<noteq>a" and f5: "d\<noteq>c" |
19158 | 275 |
by (force simp add: fresh_prod fresh_atm) |
19157
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
276 |
have g1: "[(a,d)]\<bullet>t = t" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
277 |
by (rule pt_fresh_fresh[OF pt_name_inst, OF at_name_inst, OF i11, OF f3]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
278 |
from i6 have "(([(a,c)]@[(a,d)])\<bullet>t,r'') \<in> it f1 f2 f3" using g1 i10 by (simp only: pt_name2) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
279 |
hence "(t, \<lambda>pi2. r'' (pi2@(rev ([(a,c)]@[(a,d)])))) \<in> it f1 f2 f3" |
19158 | 280 |
by (simp only: it_perm[OF f, OF c]) |
19157
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
281 |
hence g2: "(t, \<lambda>pi2. r'' (pi2@([(a,d)]@[(a,c)]))) \<in> it f1 f2 f3" by simp |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
282 |
have "distinct [a,c,d]" using i9 f4 f5 by force |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
283 |
hence g3: "(pi@[(c,d)]@[(a,d)]@[(a,c)]) \<triangleq> (pi@[(a,d)])" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
284 |
by (rule_tac at_prm_eq_append[OF at_name_inst], |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
285 |
force simp add: prm_eq_def at_calc[OF at_name_inst]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
286 |
have "fresh_fun ?g = ?g d" using fin_g fr_g f1 |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
287 |
by (simp add: fresh_fun_app[OF pt_name_inst, OF at_name_inst]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
288 |
also have "\<dots> = f3 d ((\<lambda>pi2. r'' (pi2@([(a,d)]@[(a,c)]))) (pi@[(c,d)]))" using ih g2 by simp |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
289 |
also have "\<dots> = f3 d (r'' (pi@[(c,d)]@[(a,d)]@[(a,c)]))" by simp |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
290 |
also have "\<dots> = f3 d (r'' (pi@[(a,d)]))" using i6 g3 by (simp add: it_prm_eq) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
291 |
also have "\<dots> = fresh_fun ?h" using fin_h fr_h f2 |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
292 |
by (simp add: fresh_fun_app[OF pt_name_inst, OF at_name_inst]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
293 |
finally show "fresh_fun ?g = fresh_fun ?h" by simp |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
294 |
qed |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
295 |
qed |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
296 |
qed |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
297 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
298 |
lemma it_function: |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
299 |
assumes f: "finite ((supp (f1,f2,f3))::name set)" |
19158 | 300 |
and c: "\<exists>(a::name). a\<sharp>f3 \<and> (\<forall>(r::'a::pt_name). a\<sharp>f3 a r)" |
301 |
shows "\<exists>!r. (t,r) \<in> it f1 f2 f3" |
|
19157
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
302 |
proof (rule ex_ex1I) |
19158 | 303 |
case goal1 show "\<exists>r. (t,r) \<in> it f1 f2 f3" by (rule it_total) |
19157
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
304 |
next |
19158 | 305 |
case (goal2 r1 r2) |
306 |
have a1: "(t,r1) \<in> it f1 f2 f3" and a2: "(t,r2) \<in> it f1 f2 f3" by fact |
|
307 |
hence "\<forall>pi. r1 pi = r2 pi" using it_unique[OF f, OF c] by simp |
|
308 |
thus "r1=r2" by (simp add: expand_fun_eq) |
|
19157
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
309 |
qed |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
310 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
311 |
lemma it_eqvt: |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
312 |
fixes pi::"name prm" |
19158 | 313 |
assumes f: "finite ((supp (f1,f2,f3))::name set)" |
19157
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
314 |
and c: "\<exists>(a::name). a\<sharp>f3 \<and> (\<forall>(r::'a::pt_name). a\<sharp>f3 a r)" |
19158 | 315 |
and a: "(t,r) \<in> it f1 f2 f3" |
19157
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
316 |
shows "(pi\<bullet>t,pi\<bullet>r) \<in> it (pi\<bullet>f1) (pi\<bullet>f2) (pi\<bullet>f3)" |
19158 | 317 |
using a |
19157
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
318 |
proof(induct) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
319 |
case it1 show ?case by (perm_simp add: it.intros) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
320 |
next |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
321 |
case it2 thus ?case by (perm_simp add: it.intros) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
322 |
next |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
323 |
case (it3 c r t) (* lam case *) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
324 |
let ?g = "pi\<bullet>(\<lambda>pi'. fresh_fun (\<lambda>a'. f3 a' (r (pi'@[(c,a')]))))" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
325 |
and ?h = "\<lambda>pi'. fresh_fun (\<lambda>a'. (pi\<bullet>f3) a' ((pi\<bullet>r) (pi'@[((pi\<bullet>c),a')])))" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
326 |
have "(t,r) \<in> it f1 f2 f3" by fact |
19158 | 327 |
hence fin_r: "finite ((supp r)::name set)" using f c by (auto intro: it_fin_supp) |
19157
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
328 |
have ih: "(pi\<bullet>t,pi\<bullet>r) \<in> it (pi\<bullet>f1) (pi\<bullet>f2) (pi\<bullet>f3)" by fact |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
329 |
hence "(Lam [(pi\<bullet>c)].(pi\<bullet>t),?h) \<in> it (pi\<bullet>f1) (pi\<bullet>f2) (pi\<bullet>f3)" by (simp add: it.intros) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
330 |
moreover |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
331 |
have "?g = ?h" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
332 |
proof - |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
333 |
let ?g' = "\<lambda>pi a'. f3 a' (r (pi@[(c,a')]))" |
19158 | 334 |
have fact1: "\<forall>pi. finite ((supp (?g' pi))::name set)" using fin_r f |
19157
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
335 |
by (rule_tac allI, finite_guess add: perm_append supp_prod fs_name1) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
336 |
have fact2: "\<forall>pi. \<exists>(a''::name). a''\<sharp>(?g' pi) \<and> a''\<sharp>((?g' pi) a'')" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
337 |
proof |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
338 |
fix pi::"name prm" |
19158 | 339 |
show "\<exists>(a''::name). a''\<sharp>(?g' pi) \<and> a''\<sharp>((?g' pi) a'')" using f c fin_r |
340 |
by (simp add: f3_freshness_conditions_simple supp_prod) |
|
19157
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
341 |
qed |
19158 | 342 |
from fact1 fact2 show "?g = ?h" by (perm_simp add: fresh_fun_eqvt perm_append) |
19157
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
343 |
qed |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
344 |
ultimately show "(pi\<bullet>Lam [c].t,?g) \<in> it (pi\<bullet>f1) (pi\<bullet>f2) (pi\<bullet>f3)" by simp |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
345 |
qed |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
346 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
347 |
lemma theI2': |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
348 |
assumes a1: "P a" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
349 |
and a2: "\<exists>!x. P x" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
350 |
and a3: "P a \<Longrightarrow> Q a" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
351 |
shows "Q (THE x. P x)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
352 |
apply(rule theI2) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
353 |
apply(rule a1) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
354 |
apply(subgoal_tac "\<exists>!x. P x") |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
355 |
apply(auto intro: a1 simp add: Ex1_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
356 |
apply(fold Ex1_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
357 |
apply(rule a2) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
358 |
apply(subgoal_tac "x=a") |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
359 |
apply(simp) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
360 |
apply(rule a3) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
361 |
apply(assumption) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
362 |
apply(subgoal_tac "\<exists>!x. P x") |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
363 |
apply(auto intro: a1 simp add: Ex1_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
364 |
apply(fold Ex1_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
365 |
apply(rule a2) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
366 |
done |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
367 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
368 |
lemma itfun'_equiv: |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
369 |
fixes pi::"name prm" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
370 |
assumes f: "finite ((supp (f1,f2,f3))::name set)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
371 |
and c: "\<exists>(a::name). a\<sharp>f3 \<and> (\<forall>(y::'a::pt_name). a\<sharp>f3 a y)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
372 |
shows "pi\<bullet>(itfun' f1 f2 f3 t) = itfun' (pi\<bullet>f1) (pi\<bullet>f2) (pi\<bullet>f3) (pi\<bullet>t)" |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
373 |
using f |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
374 |
apply(auto simp add: itfun'_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
375 |
apply(subgoal_tac "\<exists>y. (t,y) \<in> it f1 f2 f3")(*A*) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
376 |
apply(auto) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
377 |
apply(rule sym) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
378 |
apply(rule_tac a="y" in theI2') |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
379 |
apply(assumption) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
380 |
apply(rule it_function[OF f, OF c]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
381 |
apply(rule the1_equality) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
382 |
apply(rule it_function) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
383 |
apply(simp add: supp_prod) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
384 |
apply(simp add: pt_supp_finite_pi[OF pt_name_inst, OF at_name_inst]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
385 |
apply(subgoal_tac "\<exists>(a::name). a\<sharp>f3 \<and> (\<forall>(y::'a::pt_name). a\<sharp>f3 a y)") |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
386 |
apply(auto) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
387 |
apply(rule_tac x="pi\<bullet>a" in exI) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
388 |
apply(auto) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
389 |
apply(simp add: fresh_eqvt) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
390 |
apply(drule_tac x="(rev pi)\<bullet>x" in spec) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
391 |
apply(subgoal_tac "(pi\<bullet>f3) (pi\<bullet>a) x = pi\<bullet>(f3 a ((rev pi)\<bullet>x))") |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
392 |
apply(simp add: fresh_eqvt) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
393 |
apply(subgoal_tac "pi\<bullet>(f3 a ((rev pi)\<bullet>x)) = (pi\<bullet>f3) (pi\<bullet>a) (pi\<bullet>((rev pi)\<bullet>x))") |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
394 |
apply(simp) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
395 |
apply(perm_simp) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
396 |
apply(perm_simp) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
397 |
apply(rule c) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
398 |
apply(rule it_eqvt) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
399 |
apply(rule f, rule c, assumption) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
400 |
(*A*) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
401 |
apply(rule it_total) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
402 |
done |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
403 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
404 |
lemma itfun'_equiv_aux: |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
405 |
fixes pi::"name prm" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
406 |
assumes f: "finite ((supp (f1,f2,f3))::name set)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
407 |
and c: "\<exists>(a::name). a\<sharp>f3 \<and> (\<forall>(y::'a::pt_name). a\<sharp>f3 a y)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
408 |
shows "pi\<bullet>(itfun' f1 f2 f3 t pi') = itfun' (pi\<bullet>f1) (pi\<bullet>f2) (pi\<bullet>f3) (pi\<bullet>t) (pi\<bullet>pi')" (is "?LHS=?RHS") |
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urbanc
parents:
diff
changeset
|
409 |
proof - |
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urbanc
parents:
diff
changeset
|
410 |
have "?LHS = (pi\<bullet>itfun' f1 f2 f3 t) (pi\<bullet>pi')" by (simp add: perm_app) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
411 |
also have "\<dots> = ?RHS" by (simp add: itfun'_equiv[OF f, OF c]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
412 |
finally show "?LHS = ?RHS" by simp |
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urbanc
parents:
diff
changeset
|
413 |
qed |
6e4ce7402dbe
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urbanc
parents:
diff
changeset
|
414 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
415 |
lemma itfun'_finite_supp: |
6e4ce7402dbe
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urbanc
parents:
diff
changeset
|
416 |
assumes f: "finite ((supp (f1,f2,f3))::name set)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
417 |
and c: "\<exists>(a::name). a\<sharp>f3 \<and> (\<forall>(y::'a::pt_name). a\<sharp>f3 a y)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
418 |
shows "finite ((supp (itfun' f1 f2 f3 t))::name set)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
419 |
using f by (finite_guess add: itfun'_equiv[OF f, OF c] supp_prod fs_name1) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
420 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
421 |
lemma itfun'_prm: |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
422 |
assumes f: "finite ((supp (f1,f2,f3))::name set)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
423 |
and c: "\<exists>(a::name). a\<sharp>f3 \<and> (\<forall>(y::'a::pt_name). a\<sharp>f3 a y)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
424 |
shows "itfun' f1 f2 f3 (pi1\<bullet>t) pi2 = itfun' f1 f2 f3 t (pi2@pi1)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
425 |
apply(auto simp add: itfun'_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
426 |
apply(subgoal_tac "\<exists>y. (t,y) \<in> it f1 f2 f3")(*A*) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
427 |
apply(auto) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
428 |
apply(rule_tac a="y" in theI2') |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
429 |
apply(assumption) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
430 |
apply(rule it_function[OF f, OF c]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
431 |
apply(rule_tac a="\<lambda>pi2. y (pi2@pi1)" in theI2') |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
432 |
apply(rule it_perm) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
433 |
apply(rule f, rule c) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
434 |
apply(assumption) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
435 |
apply(rule it_function[OF f, OF c]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
436 |
apply(simp) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
437 |
(*A*) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
438 |
apply(rule it_total) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
439 |
done |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
440 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
441 |
lemma itfun_Var: |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
442 |
assumes f: "finite ((supp (f1,f2,f3))::name set)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
443 |
and c: "\<exists>(a::name). a\<sharp>f3 \<and> (\<forall>(y::'a::pt_name). a\<sharp>f3 a y)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
444 |
shows "itfun f1 f2 f3 (Var c) = (f1 c)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
445 |
apply(auto simp add: itfun_def itfun'_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
446 |
apply(subgoal_tac "(THE y. (Var c, y) \<in> it f1 f2 f3) = (\<lambda>(pi::name prm). f1 (pi\<bullet>c))")(*A*) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
447 |
apply(simp) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
448 |
apply(rule the1_equality) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
449 |
apply(rule it_function[OF f, OF c]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
450 |
apply(rule it.intros) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
451 |
done |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
452 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
453 |
lemma itfun_App: |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
454 |
assumes f: "finite ((supp (f1,f2,f3))::name set)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
455 |
and c: "\<exists>(a::name). a\<sharp>f3 \<and> (\<forall>(y::'a::pt_name). a\<sharp>f3 a y)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
456 |
shows "itfun f1 f2 f3 (App t1 t2) = (f2 (itfun f1 f2 f3 t1) (itfun f1 f2 f3 t2))" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
457 |
apply(auto simp add: itfun_def itfun'_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
458 |
apply(subgoal_tac "(THE y. (App t1 t2, y) \<in> it f1 f2 f3) = |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
459 |
(\<lambda>(pi::name prm). f2 ((itfun' f1 f2 f3 t1) pi) ((itfun' f1 f2 f3 t2) pi))")(*A*) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
460 |
apply(simp add: itfun'_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
461 |
apply(rule the1_equality) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
462 |
apply(rule it_function[OF f, OF c]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
463 |
apply(rule it.intros) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
464 |
apply(subgoal_tac "\<exists>y. (t1,y) \<in> it f1 f2 f3")(*A*) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
465 |
apply(erule exE, simp add: itfun'_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
466 |
apply(rule_tac a="y" in theI2') |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
467 |
apply(assumption) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
468 |
apply(rule it_function[OF f, OF c]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
469 |
apply(assumption) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
470 |
(*A*) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
471 |
apply(rule it_total) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
472 |
apply(subgoal_tac "\<exists>y. (t2,y) \<in> it f1 f2 f3")(*B*) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
473 |
apply(auto simp add: itfun'_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
474 |
apply(rule_tac a="y" in theI2') |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
475 |
apply(assumption) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
476 |
apply(rule it_function[OF f, OF c]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
477 |
apply(assumption) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
478 |
(*B*) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
479 |
apply(rule it_total) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
480 |
done |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
481 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
482 |
lemma itfun_Lam_aux1: |
6e4ce7402dbe
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urbanc
parents:
diff
changeset
|
483 |
assumes f: "finite ((supp (f1,f2,f3))::name set)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
484 |
and c: "\<exists>(a::name). a\<sharp>f3 \<and> (\<forall>(y::'a::pt_name). a\<sharp>f3 a y)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
485 |
shows "itfun f1 f2 f3 (Lam [a].t) = fresh_fun (\<lambda>a'. f3 a' (itfun' f1 f2 f3 t ([]@[(a,a')])))" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
486 |
apply(simp add: itfun_def itfun'_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
487 |
apply(subgoal_tac "(THE y. (Lam [a].t, y) \<in> it f1 f2 f3) = |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
488 |
(\<lambda>(pi::name prm). fresh_fun(\<lambda>a'. f3 a' ((itfun' f1 f2 f3 t) (pi@[(a,a')]))))")(*A*) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
489 |
apply(simp add: itfun'_def[symmetric]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
490 |
apply(rule the1_equality) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
491 |
apply(rule it_function[OF f, OF c]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
492 |
apply(rule it.intros) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
493 |
apply(subgoal_tac "\<exists>y. (t,y) \<in> it f1 f2 f3")(*B*) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
494 |
apply(erule exE, simp add: itfun'_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
495 |
apply(rule_tac a="y" in theI2') |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
496 |
apply(assumption) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
497 |
apply(rule it_function[OF f, OF c]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
498 |
apply(assumption) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
499 |
(*B*) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
500 |
apply(rule it_total) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
501 |
done |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
502 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
503 |
lemma itfun_Lam_aux2: |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
504 |
assumes f: "finite ((supp (f1,f2,f3))::name set)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
505 |
and c: "\<exists>(a::name). a\<sharp>f3 \<and> (\<forall>(y::'a::pt_name). a\<sharp>f3 a y)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
506 |
and a: "b\<sharp>(a,t,f1,f2,f3)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
507 |
shows "itfun f1 f2 f3 (Lam [b].([(b,a)]\<bullet>t)) = f3 b (itfun f1 f2 f3 ([(a,b)]\<bullet>t))" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
508 |
proof - |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
509 |
from f have f': "finite ((supp f3)::name set)" by (simp add: supp_prod) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
510 |
have eq1: "itfun f1 f2 f3 (Lam [b].([(b,a)]\<bullet>t)) = itfun f1 f2 f3 (Lam [a].t)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
511 |
proof - |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
512 |
have "Lam [b].([(b,a)]\<bullet>t) = Lam [a].t" using a |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
513 |
by (simp add: lam.inject alpha fresh_prod fresh_atm) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
514 |
thus ?thesis by simp |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
515 |
qed |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
516 |
let ?g = "(\<lambda>a'. f3 a' (itfun' f1 f2 f3 t ([]@[(a,a')])))" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
517 |
(* FIXME: cleanup*) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
518 |
have a0: "((supp (f1,f3,f2,t,a))::name set) supports ?g" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
519 |
by (supports_simp add: itfun'_equiv_aux[OF f, OF c] perm_append) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
520 |
have a1: "finite ((supp (f1,f3,f2,t,a))::name set)" using f |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
521 |
by (simp add: supp_prod fs_name1) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
522 |
have a2: "finite ((supp ?g)::name set)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
523 |
using f by (finite_guess add: itfun'_equiv_aux[OF f, OF c] supp_prod fs_name1) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
524 |
have c0: "finite ((supp (itfun' f1 f2 f3 t))::name set)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
525 |
by (rule itfun'_finite_supp[OF f, OF c]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
526 |
have c1: "\<exists>(a''::name). a''\<sharp>?g \<and> a''\<sharp>(?g a'')" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
527 |
by (rule f3_freshness_conditions_simple[OF f', OF c0, OF c]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
528 |
have c2: "b\<sharp>?g" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
529 |
proof - |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
530 |
have fs_g: "finite ((supp (f1,f2,f3,t))::name set)" using f |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
531 |
by (simp add: supp_prod fs_name1) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
532 |
have "((supp (f1,f2,f3,t))::name set) supports (itfun' f1 f2 f3 t)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
533 |
by (supports_simp add: itfun'_equiv[OF f, OF c]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
534 |
hence c3: "b\<sharp>(itfun' f1 f2 f3 t)" using fs_g |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
535 |
proof(rule supports_fresh, simp add: fresh_def[symmetric]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
536 |
show "b\<sharp>(f1,f2,f3,t)" using a by (simp add: fresh_prod) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
537 |
qed |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
538 |
show ?thesis using a |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
539 |
by (rule_tac supports_fresh[OF a0, OF a1], simp add: fresh_def[symmetric], simp add: fresh_prod) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
540 |
qed |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
541 |
(* main proof *) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
542 |
have "itfun f1 f2 f3 (Lam [b].([(b,a)]\<bullet>t)) = itfun f1 f2 f3 (Lam [a].t)" by (simp add: eq1) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
543 |
also have "\<dots> = fresh_fun ?g" by (rule itfun_Lam_aux1[OF f, OF c]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
544 |
also have "\<dots> = ?g b" using c2 |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
545 |
by (rule fresh_fun_app[OF pt_name_inst, OF at_name_inst, OF a2, OF c1]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
546 |
also have "\<dots> = f3 b (itfun f1 f2 f3 ([(a,b)]\<bullet>t))" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
547 |
by (simp add: itfun_def itfun'_prm[OF f, OF c]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
548 |
finally show "itfun f1 f2 f3 (Lam [b].([(b,a)]\<bullet>t)) = f3 b (itfun f1 f2 f3 ([(a,b)]\<bullet>t))" by simp |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
549 |
qed |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
550 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
551 |
lemma itfun_Lam: |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
552 |
assumes f: "finite ((supp (f1,f2,f3))::name set)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
553 |
and c: "\<exists>(a::name). a\<sharp>f3 \<and> (\<forall>(y::'a::pt_name). a\<sharp>f3 a y)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
554 |
and a: "b\<sharp>(f1,f2,f3)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
555 |
shows "itfun f1 f2 f3 (Lam [b].t) = f3 b (itfun f1 f2 f3 t)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
556 |
proof - |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
557 |
have "\<exists>(a::name). a\<sharp>(b,t)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
558 |
by (rule at_exists_fresh[OF at_name_inst], simp add: supp_prod fs_name1) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
559 |
then obtain a::"name" where a1: "a\<sharp>b" and a2: "a\<sharp>t" by (force simp add: fresh_prod) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
560 |
have "itfun f1 f2 f3 (Lam [b].t) = itfun f1 f2 f3 (Lam [b].(([(b,a)])\<bullet>([(b,a)]\<bullet>t)))" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
561 |
by (simp add: pt_swap_bij[OF pt_name_inst, OF at_name_inst]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
562 |
also have "\<dots> = f3 b (itfun f1 f2 f3 (([(a,b)])\<bullet>([(b,a)]\<bullet>t)))" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
563 |
proof(rule itfun_Lam_aux2[OF f, OF c]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
564 |
have "b\<sharp>([(b,a)]\<bullet>t)" using a1 a2 |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
565 |
by (simp add: pt_fresh_left[OF pt_name_inst, OF at_name_inst] at_calc[OF at_name_inst] |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
566 |
at_fresh[OF at_name_inst]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
567 |
thus "b\<sharp>(a,[(b,a)]\<bullet>t,f1,f2,f3)" using a a1 by (force simp add: fresh_prod at_fresh[OF at_name_inst]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
568 |
qed |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
569 |
also have "\<dots> = f3 b (itfun f1 f2 f3 t)" by (simp add: pt_swap_bij'[OF pt_name_inst, OF at_name_inst]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
570 |
finally show ?thesis . |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
571 |
qed |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
572 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
573 |
constdefs |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
574 |
depth_Var :: "name \<Rightarrow> nat" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
575 |
"depth_Var \<equiv> \<lambda>(a::name). 1" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
576 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
577 |
depth_App :: "nat \<Rightarrow> nat \<Rightarrow> nat" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
578 |
"depth_App \<equiv> \<lambda>n1 n2. (max n1 n2)+1" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
579 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
580 |
depth_Lam :: "name \<Rightarrow> nat \<Rightarrow> nat" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
581 |
"depth_Lam \<equiv> \<lambda>(a::name) n. n+1" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
582 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
583 |
depth_lam :: "lam \<Rightarrow> nat" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
584 |
"depth_lam \<equiv> itfun depth_Var depth_App depth_Lam" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
585 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
586 |
lemma supp_depth_Var: |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
587 |
shows "((supp depth_Var)::name set)={}" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
588 |
apply(simp add: depth_Var_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
589 |
apply(simp add: supp_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
590 |
apply(simp add: perm_fun_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
591 |
apply(simp add: perm_nat_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
592 |
done |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
593 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
594 |
lemma supp_depth_App: |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
595 |
shows "((supp depth_App)::name set)={}" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
596 |
apply(simp add: depth_App_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
597 |
apply(simp add: supp_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
598 |
apply(simp add: perm_fun_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
599 |
apply(simp add: perm_nat_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
600 |
done |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
601 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
602 |
lemma supp_depth_Lam: |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
603 |
shows "((supp depth_Lam)::name set)={}" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
604 |
apply(simp add: depth_Lam_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
605 |
apply(simp add: supp_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
606 |
apply(simp add: perm_fun_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
607 |
apply(simp add: perm_nat_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
608 |
done |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
609 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
610 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
611 |
lemma fin_supp_depth: |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
612 |
shows "finite ((supp (depth_Var,depth_App,depth_Lam))::name set)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
613 |
using supp_depth_Var supp_depth_Lam supp_depth_App |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
614 |
by (simp add: supp_prod) |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
615 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
616 |
lemma fresh_depth_Lam: |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
617 |
shows "\<exists>(a::name). a\<sharp>depth_Lam \<and> (\<forall>n. a\<sharp>depth_Lam a n)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
618 |
apply(rule exI) |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
619 |
apply(rule conjI) |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
620 |
apply(simp add: fresh_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
621 |
apply(force simp add: supp_depth_Lam) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
622 |
apply(unfold fresh_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
623 |
apply(simp add: supp_def) |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
624 |
apply(simp add: perm_nat_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
625 |
done |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
626 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
627 |
lemma depth_Var: |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
628 |
shows "depth_lam (Var c) = 1" |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
629 |
apply(simp add: depth_lam_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
630 |
apply(simp add: itfun_Var[OF fin_supp_depth, OF fresh_depth_Lam]) |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
631 |
apply(simp add: depth_Var_def) |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
632 |
done |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
633 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
634 |
lemma depth_App: |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
635 |
shows "depth_lam (App t1 t2) = (max (depth_lam t1) (depth_lam t2))+1" |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
636 |
apply(simp add: depth_lam_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
637 |
apply(simp add: itfun_App[OF fin_supp_depth, OF fresh_depth_Lam]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
638 |
apply(simp add: depth_App_def) |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
639 |
done |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
640 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
641 |
lemma depth_Lam: |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
642 |
shows "depth_lam (Lam [a].t) = (depth_lam t)+1" |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
643 |
apply(simp add: depth_lam_def) |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
644 |
apply(rule trans) |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
645 |
apply(rule itfun_Lam[OF fin_supp_depth, OF fresh_depth_Lam]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
646 |
apply(simp add: fresh_def supp_prod supp_depth_Var supp_depth_App supp_depth_Lam) |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
647 |
apply(simp add: depth_Lam_def) |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
648 |
done |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
649 |
|
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
650 |
text {* substitution *} |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
651 |
constdefs |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
652 |
subst_Var :: "name \<Rightarrow>lam \<Rightarrow> name \<Rightarrow> lam" |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
653 |
"subst_Var b t \<equiv> \<lambda>a. (if a=b then t else (Var a))" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
654 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
655 |
subst_App :: "name \<Rightarrow> lam \<Rightarrow> lam \<Rightarrow> lam \<Rightarrow> lam" |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
656 |
"subst_App b t \<equiv> \<lambda>r1 r2. App r1 r2" |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
657 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
658 |
subst_Lam :: "name \<Rightarrow> lam \<Rightarrow> name \<Rightarrow> lam \<Rightarrow> lam" |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
659 |
"subst_Lam b t \<equiv> \<lambda>a r. Lam [a].r" |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
660 |
|
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
661 |
subst_lam :: "name \<Rightarrow> lam \<Rightarrow> lam \<Rightarrow> lam" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
662 |
"subst_lam b t \<equiv> itfun (subst_Var b t) (subst_App b t) (subst_Lam b t)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
663 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
664 |
lemma supports_subst_Var: |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
665 |
shows "((supp (b,t))::name set) supports (subst_Var b t)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
666 |
apply(supports_simp add: subst_Var_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
667 |
apply(rule impI) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
668 |
apply(drule pt_bij1[OF pt_name_inst, OF at_name_inst]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
669 |
apply(simp add: pt_fresh_fresh[OF pt_name_inst, OF at_name_inst]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
670 |
done |
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initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
671 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
672 |
lemma supports_subst_App: |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
673 |
shows "((supp (b,t))::name set) supports subst_App b t" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
674 |
by (supports_simp add: subst_App_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
675 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
676 |
lemma supports_subst_Lam: |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
677 |
shows "((supp (b,t))::name set) supports subst_Lam b t" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
678 |
by (supports_simp add: subst_Lam_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
679 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
680 |
lemma fin_supp_subst: |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
681 |
shows "finite ((supp (subst_Var b t,subst_App b t,subst_Lam b t))::name set)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
682 |
apply(auto simp add: supp_prod) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
683 |
apply(rule supports_finite) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
684 |
apply(rule supports_subst_Var) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
685 |
apply(simp add: fs_name1) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
686 |
apply(rule supports_finite) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
687 |
apply(rule supports_subst_App) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
688 |
apply(simp add: fs_name1) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
689 |
apply(rule supports_finite) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
690 |
apply(rule supports_subst_Lam) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
691 |
apply(simp add: fs_name1) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
692 |
done |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
693 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
694 |
lemma fresh_subst_Lam: |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
695 |
shows "\<exists>(a::name). a\<sharp>(subst_Lam b t)\<and> (\<forall>y. a\<sharp>(subst_Lam b t) a y)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
696 |
apply(subgoal_tac "\<exists>(c::name). c\<sharp>(b,t)") |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
697 |
apply(auto) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
698 |
apply(rule_tac x="c" in exI) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
699 |
apply(auto) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
700 |
apply(rule supports_fresh) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
701 |
apply(rule supports_subst_Lam) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
702 |
apply(simp_all add: fresh_def[symmetric] fs_name1) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
703 |
apply(simp add: subst_Lam_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
704 |
apply(simp add: abs_fresh) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
705 |
apply(rule at_exists_fresh[OF at_name_inst]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
706 |
apply(simp add: fs_name1) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
707 |
done |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
708 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
709 |
lemma subst_Var: |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
710 |
shows "subst_lam b t (Var a) = (if a=b then t else (Var a))" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
711 |
apply(simp add: subst_lam_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
712 |
apply(auto simp add: itfun_Var[OF fin_supp_subst, OF fresh_subst_Lam]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
713 |
apply(auto simp add: subst_Var_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
714 |
done |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
715 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
716 |
lemma subst_App: |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
717 |
shows "subst_lam b t (App t1 t2) = App (subst_lam b t t1) (subst_lam b t t2)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
718 |
apply(simp add: subst_lam_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
719 |
apply(auto simp add: itfun_App[OF fin_supp_subst, OF fresh_subst_Lam]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
720 |
apply(auto simp add: subst_App_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
721 |
done |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
722 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
723 |
lemma subst_Lam: |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
724 |
assumes a: "a\<sharp>(b,t)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
725 |
shows "subst_lam b t (Lam [a].t1) = Lam [a].(subst_lam b t t1)" |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
726 |
using a |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
727 |
apply(simp add: subst_lam_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
728 |
apply(subgoal_tac "a\<sharp>(subst_Var b t,subst_App b t,subst_Lam b t)") |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
729 |
apply(auto simp add: itfun_Lam[OF fin_supp_subst, OF fresh_subst_Lam]) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
730 |
apply(simp (no_asm) add: subst_Lam_def) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
731 |
apply(auto simp add: fresh_prod) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
732 |
apply(rule supports_fresh) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
733 |
apply(rule supports_subst_Var) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
734 |
apply(simp_all add: fs_name1 fresh_def[symmetric] fresh_prod) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
735 |
apply(rule supports_fresh) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
736 |
apply(rule supports_subst_App) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
737 |
apply(simp_all add: fs_name1 fresh_def[symmetric] fresh_prod) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
738 |
apply(rule supports_fresh) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
739 |
apply(rule supports_subst_Lam) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
740 |
apply(simp_all add: fs_name1 fresh_def[symmetric] fresh_prod) |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
741 |
done |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
742 |
|
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
743 |
lemma subst_Lam': |
6e4ce7402dbe
initial commit (especially 2nd half needs to be cleaned up)
urbanc
parents:
diff
changeset
|
744 |
assumes a: "a\<noteq>b" |
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parents:
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|
745 |
and b: "a\<sharp>t" |
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parents:
diff
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|
746 |
shows "subst_lam b t (Lam [a].t1) = Lam [a].(subst_lam b t t1)" |
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urbanc
parents:
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|
747 |
apply(rule subst_Lam) |
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urbanc
parents:
diff
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|
748 |
apply(simp add: fresh_prod a b fresh_atm) |
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urbanc
parents:
diff
changeset
|
749 |
done |
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urbanc
parents:
diff
changeset
|
750 |
|
6e4ce7402dbe
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urbanc
parents:
diff
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|
751 |
lemma subst_Lam'': |
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parents:
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|
752 |
assumes a: "a\<sharp>b" |
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urbanc
parents:
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|
753 |
and b: "a\<sharp>t" |
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urbanc
parents:
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changeset
|
754 |
shows "subst_lam b t (Lam [a].t1) = Lam [a].(subst_lam b t t1)" |
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urbanc
parents:
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|
755 |
apply(rule subst_Lam) |
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urbanc
parents:
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changeset
|
756 |
apply(simp add: fresh_prod a b) |
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urbanc
parents:
diff
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|
757 |
done |
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urbanc
parents:
diff
changeset
|
758 |
|
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urbanc
parents:
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|
759 |
consts |
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parents:
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|
760 |
subst_syn :: "lam \<Rightarrow> name \<Rightarrow> lam \<Rightarrow> lam" ("_[_::=_]" [100,100,100] 900) |
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urbanc
parents:
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|
761 |
translations |
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parents:
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|
762 |
"t1[a::=t2]" \<rightleftharpoons> "subst_lam a t2 t1" |
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urbanc
parents:
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changeset
|
763 |
|
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parents:
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|
764 |
declare subst_Var[simp] |
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parents:
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|
765 |
declare subst_App[simp] |
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parents:
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|
766 |
declare subst_Lam[simp] |
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parents:
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|
767 |
declare subst_Lam'[simp] |
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parents:
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|
768 |
declare subst_Lam''[simp] |
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parents:
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|
769 |
|
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parents:
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|
770 |
lemma subst_eqvt[simp]: |
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parents:
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|
771 |
fixes pi:: "name prm" |
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parents:
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|
772 |
and t1:: "lam" |
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urbanc
parents:
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|
773 |
and t2:: "lam" |
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urbanc
parents:
diff
changeset
|
774 |
and a :: "name" |
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urbanc
parents:
diff
changeset
|
775 |
shows "pi\<bullet>(t1[b::=t2]) = (pi\<bullet>t1)[(pi\<bullet>b)::=(pi\<bullet>t2)]" |
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urbanc
parents:
diff
changeset
|
776 |
apply(nominal_induct t1 avoiding: b t2 rule: lam.induct) |
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urbanc
parents:
diff
changeset
|
777 |
apply(auto simp add: perm_bij fresh_prod fresh_atm) |
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urbanc
parents:
diff
changeset
|
778 |
apply(subgoal_tac "(pi\<bullet>name)\<sharp>(pi\<bullet>b,pi\<bullet>t2)")(*A*) |
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urbanc
parents:
diff
changeset
|
779 |
apply(simp) |
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urbanc
parents:
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changeset
|
780 |
(*A*) |
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parents:
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changeset
|
781 |
apply(simp add: perm_bij fresh_prod fresh_atm pt_fresh_bij[OF pt_name_inst, OF at_name_inst]) |
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urbanc
parents:
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|
782 |
done |
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urbanc
parents:
diff
changeset
|
783 |
|
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urbanc
parents:
diff
changeset
|
784 |
lemma subst_supp: "supp(t1[a::=t2])\<subseteq>(((supp(t1)-{a})\<union>supp(t2))::name set)" |
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urbanc
parents:
diff
changeset
|
785 |
apply(nominal_induct t1 avoiding: a t2 rule: lam.induct) |
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urbanc
parents:
diff
changeset
|
786 |
apply(auto simp add: lam.supp supp_atm fresh_prod abs_supp) |
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urbanc
parents:
diff
changeset
|
787 |
apply(blast) |
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urbanc
parents:
diff
changeset
|
788 |
apply(blast) |
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urbanc
parents:
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changeset
|
789 |
done |
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urbanc
parents:
diff
changeset
|
790 |
|
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urbanc
parents:
diff
changeset
|
791 |
end |