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[helm.git] / helm / software / matita / contribs / formal_topology / overlap / saturations_to_o-saturations.ma

diff --git a/helm/software/matita/contribs/formal_topology/overlap/saturations_to_o-saturations.ma b/helm/software/matita/contribs/formal_topology/overlap/saturations_to_o-saturations.ma
index 97bfcd6c9d19aac7ea9c591209479db41d5fbc13..88a18fda7a38ecd5f8750f8b7d6e3bb1fe0a42b7 100644 (file)
--- a/helm/software/matita/contribs/formal_topology/overlap/saturations_to_o-saturations.ma
+++ b/helm/software/matita/contribs/formal_topology/overlap/saturations_to_o-saturations.ma
@@ -19,7 +19,7 @@ include "relations_to_o-algebra.ma".
 (* These are only conversions :-) *)
 
 definition o_operator_of_operator:
- ∀C:REL. (Ω \sup C => Ω \sup C) → (SUBSETS C ⇒ SUBSETS C).
+ ∀C:REL. (Ω \sup C => Ω \sup C) → (POW C ⇒ POW C).
  intros (C t);apply t;
 qed.