1. new coercion(s) from CPropi to CProp

[helm.git] / helm / software / matita / contribs / formal_topology / overlap / concrete_spaces.ma

diff --git a/helm/software/matita/contribs/formal_topology/overlap/concrete_spaces.ma b/helm/software/matita/contribs/formal_topology/overlap/concrete_spaces.ma
index 07a067e73f5c62419d11a52eb529f4f9bd0b1af0..46e5378649a169845fdb74a3d79de5e14eda65d4 100644 (file)
--- a/helm/software/matita/contribs/formal_topology/overlap/concrete_spaces.ma
+++ b/helm/software/matita/contribs/formal_topology/overlap/concrete_spaces.ma
@@ -14,11 +14,12 @@
 
 include "basic_pairs.ma".
 
-(* full_subset e' una coercion che non mette piu' *)
+(* carr1 e' necessario perche' ci sega via la coercion per gli oggetti di REL!
+   (confondendola con la coercion per gli oggetti di SET *)
 record concrete_space : Type1 ≝
  { bp:> BP;
-   converges: ∀a: concr bp.∀U,V: form bp. a ⊩ U → a ⊩ V → a ⊩ (U ↓ V);
-   all_covered: ∀x: concr bp. x ⊩ full_subset (form bp)
+   converges: ∀a: carr1 (concr bp).∀U,V: carr1 (form bp). a ⊩ U → a ⊩ V → a ⊩_bp (U ↓ V);
+   all_covered: ∀x: carr1 (concr bp). x ⊩ form bp
  }.
 
 record convergent_relation_pair (CS1,CS2: concrete_space) : Type1 ≝