Release 0.5.9.

[helm.git] / helm / software / matita / nlibrary / nat / nat.ma

diff --git a/helm/software/matita/nlibrary/nat/nat.ma b/helm/software/matita/nlibrary/nat/nat.ma
index e9d32973bdb02a10caba88490cd84603209feee4..eed1efd1c83a907ed4c247e65d1a2ab9608fcd2a 100644 (file)
--- a/helm/software/matita/nlibrary/nat/nat.ma
+++ b/helm/software/matita/nlibrary/nat/nat.ma
@@ -14,7 +14,6 @@
 
 include "hints_declaration.ma".
 include "logic/equality.ma".
-include "sets/setoids.ma".
 
 ninductive nat: Type[0] ≝
    O: nat