flase => false :-)

diff --git a/matita/library/datatypes/bool.ma b/matita/library/datatypes/bool.ma
index 953471191b1ddb8b215c34998df0ed9822890c16..dc397a1b2d978996f32ca319b8b3befe2cad1493 100644 (file)
--- a/matita/library/datatypes/bool.ma
+++ b/matita/library/datatypes/bool.ma
@@ -37,7 +37,7 @@ unfold Not.intro.
 change with 
 match true with
 [ true \Rightarrow False
-| flase \Rightarrow True].
+| false \Rightarrow True].
 rewrite > H.simplify.exact I.
 qed.