X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fmatita%2Fcontribs%2Fformal_topology%2Foverlap%2Fo-basic_topologies.ma;h=ae695f624f92907864505483ad0f783db7641420;hb=c78cbede35ed85575e274864e6b6b9c635c6956d;hp=20923337ef6bdea87b4ecd23c8bc49497f9e0478;hpb=c5bbe2a9b9b914f538ae03526c34f2dea5364b1d;p=helm.git

diff --git a/helm/software/matita/contribs/formal_topology/overlap/o-basic_topologies.ma b/helm/software/matita/contribs/formal_topology/overlap/o-basic_topologies.ma
index 20923337e..ae695f624 100644
--- a/helm/software/matita/contribs/formal_topology/overlap/o-basic_topologies.ma
+++ b/helm/software/matita/contribs/formal_topology/overlap/o-basic_topologies.ma
@@ -15,7 +15,7 @@
 include "o-algebra.ma".
 include "o-saturations.ma".
 
-record basic_topology: Type ≝
+record basic_topology: Type2 ≝
  { carrbt:> OA;
    A: carrbt ⇒ carrbt;
    J: carrbt ⇒ carrbt;
@@ -29,7 +29,7 @@ lemma hint: OA → objs2 OA.
 qed.
 coercion hint.
 
-record continuous_relation (S,T: basic_topology) : Type ≝
+record continuous_relation (S,T: basic_topology) : Type2 ≝
  { cont_rel:> arrows2 OA S T;
    (* reduces uses eq1, saturated uses eq!!! *)
    reduced: ∀U. U = J ? U → cont_rel U = J ? (cont_rel U);
@@ -135,11 +135,6 @@ definition continuous_relation_comp:
      | apply refl1]]
 qed.
 
-lemma hintx: ∀S,T. (S ⇒ T) → unary_morphism1 S T.
- intros; apply t;
-qed.
-coercion hintx.
-
 definition BTop: category2.
  constructor 1;
   [ apply basic_topology
@@ -157,22 +152,22 @@ definition BTop: category2.
        change in e1 with (b⎻* ∘ A o2 = b'⎻* ∘ A o2);
        apply (.= e‡#);
        intro x;
-       change with (eq1 o3 (b⎻* (a'⎻* (A o1 x))) (b'⎻*(a'⎻* (A o1 x))));
-       lapply (saturated o1 o2 a' (A o1 x):?) as X;
-         [ apply ((saturation_idempotent ?? (A_is_saturation o1) x)^-1) ]
-       change in X with (eq1 ? (a'⎻* (A o1 x)) (A o2 (a'⎻* (A o1 x)))); 
+       change with (b⎻* (a'⎻* (A o1 x)) = b'⎻*(a'⎻* (A o1 x)));
        alias symbol "trans" = "trans1".
        alias symbol "prop1" = "prop11".
-       apply (.= †X);
-       whd in e1;
-       lapply (e1 (a'⎻* (A o1 x))) as X1;
-       change in X1 with (eq1 (oa_P (carrbt o3)) (b⎻* (A o2 (a'⎻* (A o1 x)))) (b'⎻* (A o2 (a' \sup ⎻* (A o1 x)))));
-       apply (.= X1);
        alias symbol "invert" = "setoid1 symmetry".
-       apply (†(X\sup -1));]
+       lapply (.= †(saturated o1 o2 a' (A o1 x) : ?));
+        [3: apply (b⎻* ); | 5: apply Hletin; |1,2: skip;
+        |apply ((saturation_idempotent ?? (A_is_saturation o1) x)^-1); ]
+       change in e1 with (∀x.b⎻* (A o2 x) = b'⎻* (A o2 x));
+       apply (.= (e1 (a'⎻* (A o1 x))));
+       alias symbol "invert" = "setoid1 symmetry".
+       lapply (†((saturated ?? a' (A o1 x) : ?) ^ -1));
+        [2: apply (b'⎻* ); |4: apply Hletin; | skip;
+        |apply ((saturation_idempotent ?? (A_is_saturation o1) x)^-1);]]
   | intros; simplify;
     change with (((a34⎻* ∘ a23⎻* ) ∘ a12⎻* ) ∘ A o1 = ((a34⎻* ∘ (a23⎻* ∘ a12⎻* )) ∘ A o1));
-    apply rule (#‡ASSOC1\sup -1);
+    apply rule (#‡ASSOC ^ -1);
   | intros; simplify;
     change with ((a⎻* ∘ (id2 ? o1)⎻* ) ∘ A o1 = a⎻* ∘ A o1);
     apply (#‡(id_neutral_right2 : ?));
@@ -181,6 +176,9 @@ definition BTop: category2.
     apply (#‡(id_neutral_left2 : ?));]
 qed.
 
+definition btop_carr: BTop → Type1 ≝ λo:BTop. carr1 (oa_P (carrbt o)).
+coercion btop_carr.
+
 (*
 (*CSC: unused! *)
 (* this proof is more logic-oriented than set/lattice oriented *)
@@ -206,4 +204,4 @@ theorem continuous_relation_eqS:
   [2,4: intros; apply saturation_monotone; try (apply A_is_saturation); apply Hcut;]
  apply Hcut2; assumption.
 qed.
-*)
\ No newline at end of file
+*)