X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fmatita%2Flibrary%2Fformal_topology%2Fformal_topologies.ma;h=177eb454e491611f5401e4cea853e4bdd9b00d8b;hb=e880d6eab5e1700f4a625ddcd7d0fa8f0cce2dcc;hp=2acb5642d736b940033b7d6bc3421424879cc748;hpb=7fb962ce66388785d27e699d921aa7b03a170139;p=helm.git

diff --git a/helm/software/matita/library/formal_topology/formal_topologies.ma b/helm/software/matita/library/formal_topology/formal_topologies.ma
index 2acb5642d..177eb454e 100644
--- a/helm/software/matita/library/formal_topology/formal_topologies.ma
+++ b/helm/software/matita/library/formal_topology/formal_topologies.ma
@@ -14,14 +14,7 @@
 
 include "formal_topology/basic_topologies.ma".
 
-definition btop_carr: BTop → Type ≝ λo:BTop. carr (carrbt o).
-
-coercion btop_carr.
-
-definition btop_carr': BTop → setoid ≝ λo:BTop. carrbt o.
-
-coercion btop_carr'.
-
+(*
 definition downarrow: ∀S:BTop. unary_morphism (Ω \sup S) (Ω \sup S).
  intros; constructor 1;
   [ apply (λU:Ω \sup S.{a | ∃b:carrbt S. b ∈ U ∧ a ∈ A ? (singleton ? b)});
@@ -31,7 +24,7 @@ definition downarrow: ∀S:BTop. unary_morphism (Ω \sup S) (Ω \sup S).
     try assumption; [ apply (. #‡H) | apply (. #‡H \sup -1)] assumption]
 qed.
 
-interpretation "downarrow" 'downarrow a = (fun_1 __ (downarrow _) a).
+interpretation "downarrow" 'downarrow a = (fun_1 ?? (downarrow ?) a).
 
 definition ffintersects: ∀S:BTop. binary_morphism1 (Ω \sup S) (Ω \sup S) (Ω \sup S).
  intros; constructor 1;
@@ -39,16 +32,13 @@ definition ffintersects: ∀S:BTop. binary_morphism1 (Ω \sup S) (Ω \sup S) (Ω
   | intros; apply (.= (†H)‡(†H1)); apply refl1]
 qed.
 
-interpretation "ffintersects" 'fintersects U V = (fun1 ___ (ffintersects _) U V).
+interpretation "ffintersects" 'fintersects U V = (fun1 ??? (ffintersects ?) U V).
 
 record formal_topology: Type ≝
  { bt:> BTop;
    converges: ∀U,V: Ω \sup bt. A ? (U ↓ V) = A ? U ∩ A ? V
  }.
 
-definition bt': formal_topology → basic_topology ≝ λo:formal_topology.bt o.
-
-coercion bt'.
 
 definition ffintersects': ∀S:BTop. binary_morphism1 S S (Ω \sup S).
  intros; constructor 1;
@@ -56,10 +46,52 @@ definition ffintersects': ∀S:BTop. binary_morphism1 S S (Ω \sup S).
   | intros; apply (.= (†H)‡(†H1)); apply refl1]
 qed.
 
-interpretation "ffintersects'" 'fintersects U V = (fun1 ___ (ffintersects' _) U V).
+interpretation "ffintersects'" 'fintersects U V = (fun1 ??? (ffintersects' ?) U V).
 
 record formal_map (S,T: formal_topology) : Type ≝
- { cr:> continuous_relation S T;
-   C1: ∀b,c. extS ?? cr (b ↓ c) = (ext ?? cr b) ↓ (ext ?? cr c);
+ { cr:> continuous_relation_setoid S T;
+   C1: ∀b,c. extS ?? cr (b ↓ c) = ext ?? cr b ↓ ext ?? cr c;
    C2: extS ?? cr T = S
- }.
\ No newline at end of file
+ }.
+
+definition formal_map_setoid: formal_topology → formal_topology → setoid1.
+ intros (S T); constructor 1;
+  [ apply (formal_map S T);
+  | constructor 1;
+     [ apply (λf,f1: formal_map S T.f=f1);
+     | simplify; intros 1; apply refl1
+     | simplify; intros 2; apply sym1
+     | simplify; intros 3; apply trans1]]
+qed.
+
+axiom C1':
+ ∀S,T: formal_topology.∀f:formal_map_setoid S T.∀U,V: Ω \sup T.
+  extS ?? f (U ↓ V) = extS ?? f U ↓ extS ?? f V.
+
+definition formal_map_composition:
+ ∀o1,o2,o3: formal_topology.
+  binary_morphism1
+   (formal_map_setoid o1 o2)
+   (formal_map_setoid o2 o3)
+   (formal_map_setoid o1 o3).
+ intros; constructor 1;
+  [ intros; whd in c c1; constructor 1;
+     [ apply (comp1 BTop ??? c c1);
+     | intros;
+       apply (.= (extS_com ??? c c1 ?));
+       apply (.= †(C1 ?????));
+       apply (.= (C1' ?????));
+       apply (.= ((†((extS_singleton ????) \sup -1))‡(†((extS_singleton ????) \sup -1))));
+       apply (.= (extS_com ??????)\sup -1 ‡ (extS_com ??????) \sup -1);
+       apply (.= (extS_singleton ????)‡(extS_singleton ????));
+       apply refl1;
+     | apply (.= (extS_com ??? c c1 ?));
+       apply (.= (†(C2 ???)));
+       apply (.= (C2 ???));
+       apply refl1;]
+  | intros; simplify;
+    change with (comp1 BTop ??? a b = comp1 BTop ??? a' b');
+    apply prop1; assumption]
+qed.
+
+*)
\ No newline at end of file