...

diff --git a/helm/software/matita/nlibrary/topology/igft.ma b/helm/software/matita/nlibrary/topology/igft.ma
index 06f2c08e5d18f019b6c5fe9fde0c7ebec68f4ada..270fbb9cdefe0345916d8855c4e38a9413362347 100644 (file)
--- a/helm/software/matita/nlibrary/topology/igft.ma
+++ b/helm/software/matita/nlibrary/topology/igft.ma
@@ -25,8 +25,9 @@ statements) readable to the author of the paper.
 The formalization uses the ng (new generation) version of Matita
 (that will be named 1.x when finally released). 
 Last stable release of the "old" system is named 0.5.7; the ng system
-is coexisting with the old one in every development release with a 
-version strictly greater than 0.5.7.
+is coexisting with the old one in every development release 
+(named "nightly builds" in the download page of Matita) 
+with a version strictly greater than 0.5.7.
 
 Orienteering
 ------------