--- a/src/HOL/UNITY/Guar.ML Fri Sep 22 17:25:09 2000 +0200
+++ b/src/HOL/UNITY/Guar.ML Sat Sep 23 16:02:01 2000 +0200
@@ -65,14 +65,14 @@
(*** guarantees ***)
val prems = Goal
- "(!!G. [| G : preserves v; F Join G : X |] ==> F Join G : Y) \
-\ ==> F : X guarantees[v] Y";
+ "(!!G. [| F ok G; F Join G : X |] ==> F Join G : Y) \
+\ ==> F : X guarantees Y";
by (simp_tac (simpset() addsimps [guar_def, component_def]) 1);
by (blast_tac (claset() addIs prems) 1);
qed "guaranteesI";
Goalw [guar_def, component_def]
- "[| F : X guarantees[v] Y; G : preserves v; F Join G : X |] \
+ "[| F : X guarantees Y; F ok G; F Join G : X |] \
\ ==> F Join G : Y";
by (Blast_tac 1);
qed "guaranteesD";
@@ -80,33 +80,27 @@
(*This version of guaranteesD matches more easily in the conclusion
The major premise can no longer be F<=H since we need to reason about G*)
Goalw [guar_def]
- "[| F : X guarantees[v] Y; F Join G = H; H : X; G : preserves v |] \
+ "[| F : X guarantees Y; F Join G = H; H : X; F ok G |] \
\ ==> H : Y";
by (Blast_tac 1);
qed "component_guaranteesD";
Goalw [guar_def]
- "[| F: X guarantees[v] X'; Y <= X; X' <= Y' |] ==> F: Y guarantees[v] Y'";
+ "[| F: X guarantees X'; Y <= X; X' <= Y' |] ==> F: Y guarantees Y'";
by (Blast_tac 1);
qed "guarantees_weaken";
-Goalw [guar_def]
- "[| F: X guarantees[v] Y; preserves w <= preserves v |] \
-\ ==> F: X guarantees[w] Y";
-by (Blast_tac 1);
-qed "guarantees_weaken_var";
-
-Goalw [guar_def] "X <= Y ==> X guarantees[v] Y = UNIV";
+Goalw [guar_def] "X <= Y ==> X guarantees Y = UNIV";
by (Blast_tac 1);
qed "subset_imp_guarantees_UNIV";
(*Equivalent to subset_imp_guarantees_UNIV but more intuitive*)
-Goalw [guar_def] "X <= Y ==> F : X guarantees[v] Y";
+Goalw [guar_def] "X <= Y ==> F : X guarantees Y";
by (Blast_tac 1);
qed "subset_imp_guarantees";
(*Remark at end of section 4.1
-Goalw [guar_def] "ex_prop Y = (Y = UNIV guarantees[v] Y)";
+Goalw [guar_def] "ex_prop Y = (Y = UNIV guarantees Y)";
by (simp_tac (simpset() addsimps [ex_prop_equiv]) 1);
by (blast_tac (claset() addEs [equalityE]) 1);
qed "ex_prop_equiv2";
@@ -115,40 +109,40 @@
(** Distributive laws. Re-orient to perform miniscoping **)
Goalw [guar_def]
- "(UN i:I. X i) guarantees[v] Y = (INT i:I. X i guarantees[v] Y)";
+ "(UN i:I. X i) guarantees Y = (INT i:I. X i guarantees Y)";
by (Blast_tac 1);
qed "guarantees_UN_left";
Goalw [guar_def]
- "(X Un Y) guarantees[v] Z = (X guarantees[v] Z) Int (Y guarantees[v] Z)";
+ "(X Un Y) guarantees Z = (X guarantees Z) Int (Y guarantees Z)";
by (Blast_tac 1);
qed "guarantees_Un_left";
Goalw [guar_def]
- "X guarantees[v] (INT i:I. Y i) = (INT i:I. X guarantees[v] Y i)";
+ "X guarantees (INT i:I. Y i) = (INT i:I. X guarantees Y i)";
by (Blast_tac 1);
qed "guarantees_INT_right";
Goalw [guar_def]
- "Z guarantees[v] (X Int Y) = (Z guarantees[v] X) Int (Z guarantees[v] Y)";
+ "Z guarantees (X Int Y) = (Z guarantees X) Int (Z guarantees Y)";
by (Blast_tac 1);
qed "guarantees_Int_right";
-Goal "[| F : Z guarantees[v] X; F : Z guarantees[v] Y |] \
-\ ==> F : Z guarantees[v] (X Int Y)";
+Goal "[| F : Z guarantees X; F : Z guarantees Y |] \
+\ ==> F : Z guarantees (X Int Y)";
by (asm_simp_tac (simpset() addsimps [guarantees_Int_right]) 1);
qed "guarantees_Int_right_I";
-Goal "(F : X guarantees[v] (INTER I Y)) = \
-\ (ALL i:I. F : X guarantees[v] (Y i))";
+Goal "(F : X guarantees (INTER I Y)) = \
+\ (ALL i:I. F : X guarantees (Y i))";
by (simp_tac (simpset() addsimps [guarantees_INT_right]) 1);
qed "guarantees_INT_right_iff";
-Goalw [guar_def] "(X guarantees[v] Y) = (UNIV guarantees[v] (-X Un Y))";
+Goalw [guar_def] "(X guarantees Y) = (UNIV guarantees (-X Un Y))";
by (Blast_tac 1);
qed "shunting";
-Goalw [guar_def] "(X guarantees[v] Y) = -Y guarantees[v] -X";
+Goalw [guar_def] "(X guarantees Y) = -Y guarantees -X";
by (Blast_tac 1);
qed "contrapositive";
@@ -157,119 +151,115 @@
**)
Goalw [guar_def]
- "[| F : V guarantees[v] X; F : (X Int Y) guarantees[v] Z |]\
-\ ==> F : (V Int Y) guarantees[v] Z";
+ "[| F : V guarantees X; F : (X Int Y) guarantees Z |]\
+\ ==> F : (V Int Y) guarantees Z";
by (Blast_tac 1);
qed "combining1";
Goalw [guar_def]
- "[| F : V guarantees[v] (X Un Y); F : Y guarantees[v] Z |]\
-\ ==> F : V guarantees[v] (X Un Z)";
+ "[| F : V guarantees (X Un Y); F : Y guarantees Z |]\
+\ ==> F : V guarantees (X Un Z)";
by (Blast_tac 1);
qed "combining2";
(** The following two follow Chandy-Sanders, but the use of object-quantifiers
does not suit Isabelle... **)
-(*Premise should be (!!i. i: I ==> F: X guarantees[v] Y i) *)
+(*Premise should be (!!i. i: I ==> F: X guarantees Y i) *)
Goalw [guar_def]
- "ALL i:I. F : X guarantees[v] (Y i) ==> F : X guarantees[v] (INT i:I. Y i)";
+ "ALL i:I. F : X guarantees (Y i) ==> F : X guarantees (INT i:I. Y i)";
by (Blast_tac 1);
qed "all_guarantees";
-(*Premises should be [| F: X guarantees[v] Y i; i: I |] *)
+(*Premises should be [| F: X guarantees Y i; i: I |] *)
Goalw [guar_def]
- "EX i:I. F : X guarantees[v] (Y i) ==> F : X guarantees[v] (UN i:I. Y i)";
+ "EX i:I. F : X guarantees (Y i) ==> F : X guarantees (UN i:I. Y i)";
by (Blast_tac 1);
qed "ex_guarantees";
(*** Additional guarantees laws, by lcp ***)
Goalw [guar_def]
- "[| F: U guarantees[v] V; G: X guarantees[v] Y; \
-\ F : preserves v; G : preserves v |] \
-\ ==> F Join G: (U Int X) guarantees[v] (V Int Y)";
+ "[| F: U guarantees V; G: X guarantees Y; F ok G |] \
+\ ==> F Join G: (U Int X) guarantees (V Int Y)";
by (Simp_tac 1);
by Safe_tac;
by (asm_full_simp_tac (simpset() addsimps [Join_assoc]) 1);
by (subgoal_tac "F Join G Join Ga = G Join (F Join Ga)" 1);
-by (Asm_full_simp_tac 1);
+by (asm_full_simp_tac (simpset() addsimps [ok_commute]) 1);
by (asm_simp_tac (simpset() addsimps Join_ac) 1);
qed "guarantees_Join_Int";
Goalw [guar_def]
- "[| F: U guarantees[v] V; G: X guarantees[v] Y; \
-\ F : preserves v; G : preserves v |] \
-\ ==> F Join G: (U Un X) guarantees[v] (V Un Y)";
+ "[| F: U guarantees V; G: X guarantees Y; F ok G |] \
+\ ==> F Join G: (U Un X) guarantees (V Un Y)";
by (Simp_tac 1);
by Safe_tac;
by (asm_full_simp_tac (simpset() addsimps [Join_assoc]) 1);
by (subgoal_tac "F Join G Join Ga = G Join (F Join Ga)" 1);
-by (Asm_full_simp_tac 1);
+by (asm_full_simp_tac (simpset() addsimps [ok_commute]) 1);
by (asm_simp_tac (simpset() addsimps Join_ac) 1);
qed "guarantees_Join_Un";
Goalw [guar_def]
- "[| ALL i:I. F i : X i guarantees[v] Y i; \
-\ ALL i:I. F i : preserves v |] \
-\ ==> (JOIN I F) : (INTER I X) guarantees[v] (INTER I Y)";
+ "[| ALL i:I. F i : X i guarantees Y i; OK I F |] \
+\ ==> (JOIN I F) : (INTER I X) guarantees (INTER I Y)";
by Auto_tac;
by (ball_tac 1);
-by (dres_inst_tac [("x", "JOIN I F Join G")] bspec 1);
+by (rename_tac "i" 1);
+by (dres_inst_tac [("x", "JOIN (I-{i}) F Join G")] spec 1);
by (auto_tac
- (claset(),
- simpset() addsimps [Join_assoc RS sym, JN_absorb]));
+ (claset() addIs [OK_imp_ok],
+ simpset() addsimps [Join_assoc RS sym, JN_Join_diff, JN_absorb]));
qed "guarantees_JN_INT";
Goalw [guar_def]
- "[| ALL i:I. F i : X i guarantees[v] Y i; \
-\ ALL i:I. F i : preserves v |] \
-\ ==> (JOIN I F) : (INTER I X) guarantees[v] (INTER I Y)";
+ "[| ALL i:I. F i : X i guarantees Y i; OK I F |] \
+\ ==> (JOIN I F) : (INTER I X) guarantees (INTER I Y)";
by Auto_tac;
by (ball_tac 1);
-by (dres_inst_tac [("x", "JOIN I F Join G")] bspec 1);
+by (rename_tac "i" 1);
+by (dres_inst_tac [("x", "JOIN (I-{i}) F Join G")] spec 1);
by (auto_tac
- (claset(),
- simpset() addsimps [Join_assoc RS sym, JN_absorb]));
+ (claset() addIs [OK_imp_ok],
+ simpset() addsimps [Join_assoc RS sym, JN_Join_diff, JN_absorb]));
qed "guarantees_JN_INT";
Goalw [guar_def]
- "[| ALL i:I. F i : X i guarantees[v] Y i; \
-\ ALL i:I. F i : preserves v |] \
-\ ==> (JOIN I F) : (UNION I X) guarantees[v] (UNION I Y)";
+ "[| ALL i:I. F i : X i guarantees Y i; OK I F |] \
+\ ==> (JOIN I F) : (UNION I X) guarantees (UNION I Y)";
by Auto_tac;
by (ball_tac 1);
-by (dres_inst_tac [("x", "JOIN I F Join G")] bspec 1);
+by (rename_tac "i" 1);
+by (dres_inst_tac [("x", "JOIN (I-{i}) F Join G")] spec 1);
by (auto_tac
- (claset(),
- simpset() addsimps [Join_assoc RS sym, JN_absorb]));
+ (claset() addIs [OK_imp_ok],
+ simpset() addsimps [Join_assoc RS sym, JN_Join_diff, JN_absorb]));
qed "guarantees_JN_UN";
-(*** guarantees[v] laws for breaking down the program, by lcp ***)
+(*** guarantees laws for breaking down the program, by lcp ***)
Goalw [guar_def]
- "[| F: X guarantees[v] Y; G: preserves v |] \
-\ ==> F Join G: X guarantees[v] Y";
+ "[| F: X guarantees Y; F ok G |] ==> F Join G: X guarantees Y";
by (Simp_tac 1);
by Safe_tac;
by (asm_full_simp_tac (simpset() addsimps [Join_assoc]) 1);
qed "guarantees_Join_I1";
-Goal "[| G: X guarantees[v] Y; F: preserves v |] \
-\ ==> F Join G: X guarantees[v] Y";
-by (stac Join_commute 1);
+Goal "[| G: X guarantees Y; F ok G |] ==> F Join G: X guarantees Y";
+by (asm_full_simp_tac (simpset() addsimps [inst "G" "G" Join_commute,
+ inst "G" "G" ok_commute]) 1);
by (blast_tac (claset() addIs [guarantees_Join_I1]) 1);
qed "guarantees_Join_I2";
Goalw [guar_def]
- "[| i : I; F i: X guarantees[v] Y; \
-\ ALL j:I. i~=j --> F j : preserves v |] \
-\ ==> (JN i:I. (F i)) : X guarantees[v] Y";
+ "[| i : I; F i: X guarantees Y; OK I F |] \
+\ ==> (JN i:I. (F i)) : X guarantees Y";
by (Clarify_tac 1);
-by (dres_inst_tac [("x", "JOIN (I-{i}) F Join G")] bspec 1);
-by (auto_tac (claset(),
- simpset() addsimps [JN_Join_diff, Join_assoc RS sym]));
+by (dres_inst_tac [("x", "JOIN (I-{i}) F Join G")] spec 1);
+by (auto_tac (claset() addIs [OK_imp_ok],
+ simpset() addsimps [JN_Join_diff, JN_Join_diff, Join_assoc RS sym]));
qed "guarantees_JN_I";