X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fmatita%2Fcontribs%2Fformal_topology%2Foverlap%2Fo-concrete_spaces.ma;h=90086b4d2f0e8646b973ef60925f8ccaee6db19b;hb=21cb6b92e615f08280e9f032718593b4a6a1d3a5;hp=d7e0bf649754b0e995b3e791585e729de854a1a4;hpb=cb98bd7054893edee16aadd6741ec5210b04afbc;p=helm.git

diff --git a/helm/software/matita/contribs/formal_topology/overlap/o-concrete_spaces.ma b/helm/software/matita/contribs/formal_topology/overlap/o-concrete_spaces.ma
index d7e0bf649..90086b4d2 100644
--- a/helm/software/matita/contribs/formal_topology/overlap/o-concrete_spaces.ma
+++ b/helm/software/matita/contribs/formal_topology/overlap/o-concrete_spaces.ma
@@ -15,7 +15,7 @@
 include "o-basic_pairs.ma".
 include "o-saturations.ma".
 
-definition A : ∀b:BP. unary_morphism1 (form b) (form b).
+definition A : ∀b:OBP. unary_morphism1 (Oform b) (Oform b).
 intros; constructor 1;
  [ apply (λx.□_b (Ext⎽b x));
  | intros; apply  (†(†e));]
@@ -25,25 +25,25 @@ lemma down_p : ∀S:SET1.∀I:SET.∀u:S⇒S.∀c:arrows2 SET1 I S.∀a:I.∀a':
 intros; apply (†(†e));
 qed.
 
-record concrete_space : Type2 ≝
- { bp:> BP;
+record Oconcrete_space : Type2 ≝
+ { Obp:> OBP;
    (*distr : is_distributive (form bp);*)
-   downarrow: unary_morphism1 (form bp) (form bp);
-   downarrow_is_sat: is_o_saturation ? downarrow;
-   converges: ∀q1,q2.
-     (Ext⎽bp q1 ∧ (Ext⎽bp q2)) = (Ext⎽bp ((downarrow q1) ∧ (downarrow q2)));
-   all_covered: Ext⎽bp (oa_one (form bp)) = oa_one (concr bp);
-   il2: ∀I:SET.∀p:arrows2 SET1 I (form bp).
-     downarrow (∨ { x ∈ I | downarrow (p x) | down_p ???? }) =
-     ∨ { x ∈ I | downarrow (p x) | down_p ???? };
-   il1: ∀q.downarrow (A ? q) = A ? q
+   Odownarrow: unary_morphism1 (Oform Obp) (Oform Obp);
+   Odownarrow_is_sat: is_o_saturation ? Odownarrow;
+   Oconverges: ∀q1,q2.
+     (Ext⎽Obp q1 ∧ (Ext⎽Obp q2)) = (Ext⎽Obp ((Odownarrow q1) ∧ (Odownarrow q2)));
+   Oall_covered: Ext⎽Obp (oa_one (Oform Obp)) = oa_one (Oconcr Obp);
+   Oil2: ∀I:SET.∀p:arrows2 SET1 I (Oform Obp).
+     Odownarrow (∨ { x ∈ I | Odownarrow (p x) | down_p ???? }) =
+     ∨ { x ∈ I | Odownarrow (p x) | down_p ???? };
+   Oil1: ∀q.Odownarrow (A ? q) = A ? q
  }.
 
 interpretation "o-concrete space downarrow" 'downarrow x = 
-  (fun11 __ (downarrow _) x).
+  (fun11 __ (Odownarrow _) x).
 
-definition binary_downarrow : 
-  ∀C:concrete_space.binary_morphism1 (form C) (form C) (form C).
+definition Obinary_downarrow : 
+  ∀C:Oconcrete_space.binary_morphism1 (Oform C) (Oform C) (Oform C).
 intros; constructor 1;
 [ intros; apply (↓ c ∧ ↓ c1);
 | intros;
@@ -52,40 +52,40 @@ intros; constructor 1;
   apply ((†e)‡(†e1));]
 qed.
 
-interpretation "concrete_space binary ↓" 'fintersects a b = (fun21 _ _ _ (binary_downarrow _) a b).
+interpretation "concrete_space binary ↓" 'fintersects a b = (fun21 _ _ _ (Obinary_downarrow _) a b).
 
-record convergent_relation_pair (CS1,CS2: concrete_space) : Type2 ≝
- { rp:> arrows2 ? CS1 CS2;
-   respects_converges:
-    ∀b,c. eq1 ? (rp\sub\c⎻ (Ext⎽CS2 (b ↓ c))) (Ext⎽CS1 (rp\sub\f⎻ b ↓ rp\sub\f⎻ c));
-   respects_all_covered:
-     eq1 ? (rp\sub\c⎻ (Ext⎽CS2 (oa_one (form CS2))))
-           (Ext⎽CS1 (oa_one (form CS1)))
+record Oconvergent_relation_pair (CS1,CS2: Oconcrete_space) : Type2 ≝
+ { Orp:> arrows2 ? CS1 CS2;
+   Orespects_converges:
+    ∀b,c. eq1 ? (Orp\sub\c⎻ (Ext⎽CS2 (b ↓ c))) (Ext⎽CS1 (Orp\sub\f⎻ b ↓ Orp\sub\f⎻ c));
+   Orespects_all_covered:
+     eq1 ? (Orp\sub\c⎻ (Ext⎽CS2 (oa_one (Oform CS2))))
+           (Ext⎽CS1 (oa_one (Oform CS1)))
  }.
 
-definition convergent_relation_space_setoid: concrete_space → concrete_space → setoid2.
- intros;
+definition Oconvergent_relation_space_setoid: Oconcrete_space → Oconcrete_space → setoid2.
+ intros (c c1);
  constructor 1;
-  [ apply (convergent_relation_pair c c1)
+  [ apply (Oconvergent_relation_pair c c1)
   | constructor 1;
-     [ intros;
-       apply (relation_pair_equality c c1 c2 c3);
+     [ intros (c2 c3);
+       apply (Orelation_pair_equality c c1 c2 c3);
      | intros 1; apply refl2;
      | intros 2; apply sym2; 
      | intros 3; apply trans2]]
 qed.
 
-definition convergent_relation_space_of_convergent_relation_space_setoid: 
-  ∀CS1,CS2.carr2 (convergent_relation_space_setoid CS1 CS2) → 
-    convergent_relation_pair CS1 CS2  ≝ λP,Q,c.c.
-coercion convergent_relation_space_of_convergent_relation_space_setoid.
+definition Oconvergent_relation_space_of_Oconvergent_relation_space_setoid: 
+  ∀CS1,CS2.carr2 (Oconvergent_relation_space_setoid CS1 CS2) → 
+    Oconvergent_relation_pair CS1 CS2  ≝ λP,Q,c.c.
+coercion Oconvergent_relation_space_of_Oconvergent_relation_space_setoid.
 
-definition convergent_relation_space_composition:
- ∀o1,o2,o3: concrete_space.
+definition Oconvergent_relation_space_composition:
+ ∀o1,o2,o3: Oconcrete_space.
   binary_morphism2
-   (convergent_relation_space_setoid o1 o2)
-   (convergent_relation_space_setoid o2 o3)
-   (convergent_relation_space_setoid o1 o3).
+   (Oconvergent_relation_space_setoid o1 o2)
+   (Oconvergent_relation_space_setoid o2 o3)
+   (Oconvergent_relation_space_setoid o1 o3).
  intros; constructor 1;
      [ intros; whd in t t1 ⊢ %;
        constructor 1;
@@ -93,42 +93,42 @@ definition convergent_relation_space_composition:
         | intros;
           change in ⊢ (? ? ? % ?) with (c\sub\c⎻ (c1\sub\c⎻ (Ext⎽o3 (b↓c2))));
           alias symbol "trans" = "trans1".
-          apply (.= († (respects_converges : ?)));
-          apply (respects_converges ?? c (c1\sub\f⎻ b) (c1\sub\f⎻ c2));
-        | change in ⊢ (? ? ? % ?) with (c\sub\c⎻ (c1\sub\c⎻ (Ext⎽o3 (oa_one (form o3)))));
-          apply (.= (†(respects_all_covered :?)));
-          apply rule (respects_all_covered ?? c);]
+          apply (.= († (Orespects_converges : ?)));
+          apply (Orespects_converges ?? c (c1\sub\f⎻ b) (c1\sub\f⎻ c2));
+        | change in ⊢ (? ? ? % ?) with (c\sub\c⎻ (c1\sub\c⎻ (Ext⎽o3 (oa_one (Oform o3)))));
+          apply (.= (†(Orespects_all_covered :?)));
+          apply rule (Orespects_all_covered ?? c);]
      | intros;
        change with (b ∘ a = b' ∘ a'); 
-       change in e with (rp ?? a = rp ?? a');
-       change in e1 with (rp ?? b = rp ?? b');
+       change in e with (Orp ?? a = Orp ?? a');
+       change in e1 with (Orp ?? b = Orp ?? b');
        apply (e‡e1);]
 qed.
 
-definition CSPA: category2.
+definition OCSPA: category2.
  constructor 1;
-  [ apply concrete_space
-  | apply convergent_relation_space_setoid
+  [ apply Oconcrete_space
+  | apply Oconvergent_relation_space_setoid
   | intro; constructor 1;
      [ apply id2
      | intros; apply refl1;
      | apply refl1]
-  | apply convergent_relation_space_composition
+  | apply Oconvergent_relation_space_composition
   | intros; simplify; whd in a12 a23 a34;
     change with (a34 ∘ (a23 ∘ a12) = (a34 ∘ a23) ∘ a12);
     apply rule ASSOC;
   | intros; simplify;
-    change with (a ∘ id2 BP o1 = a);
+    change with (a ∘ id2 OBP o1 = a);
     apply (id_neutral_right2 : ?);
   | intros; simplify;
     change with (id2 ? o2 ∘ a = a);
     apply (id_neutral_left2 : ?);]
 qed.
 
-definition concrete_space_of_CSPA : objs2 CSPA → concrete_space ≝ λx.x.
-coercion concrete_space_of_CSPA.
+definition Oconcrete_space_of_OCSPA : objs2 OCSPA → Oconcrete_space ≝ λx.x.
+coercion Oconcrete_space_of_OCSPA.
 
-definition convergent_relation_space_setoid_of_arrows2_CSPA :
- ∀P,Q. arrows2 CSPA P Q → convergent_relation_space_setoid P Q ≝ λP,Q,x.x.
-coercion convergent_relation_space_setoid_of_arrows2_CSPA.
+definition Oconvergent_relation_space_setoid_of_arrows2_OCSPA :
+ ∀P,Q. arrows2 OCSPA P Q → Oconvergent_relation_space_setoid P Q ≝ λP,Q,x.x.
+coercion Oconvergent_relation_space_setoid_of_arrows2_OCSPA.