X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;ds=sidebyside;f=matita%2Fmatita%2Flib%2Fformal_topology%2Fo-algebra.ma;h=61a784605dfbaec75c5254a6e6fa1463bcc466c0;hb=8db3579bec4d9a97af526f95a179587a2fbfe3e3;hp=496485975f0db459fc03f0e05dd225dd8fc7dd45;hpb=d2b59bd89f761a16a2dbc663f446b4f95c767b83;p=helm.git

diff --git a/matita/matita/lib/formal_topology/o-algebra.ma b/matita/matita/lib/formal_topology/o-algebra.ma
index 496485975..61a784605 100644
--- a/matita/matita/lib/formal_topology/o-algebra.ma
+++ b/matita/matita/lib/formal_topology/o-algebra.ma
@@ -12,8 +12,9 @@
 (*                                                                        *)
 (**************************************************************************)
 
+include "basics/core_notation/comprehension_2.ma".
 include "formal_topology/categories.ma".
-
+(*
 inductive bool : Type[0] := true : bool | false : bool.
 
 lemma BOOL : objs1 SET.
@@ -440,3 +441,4 @@ qed.
 lemma oa_overlap_sym': ∀o:OA.∀U,V:o. (U >< V) = (V >< U).
  intros; split; intro; apply oa_overlap_sym; assumption.
 qed.
+*)