better replacement for \\def

diff --git a/helm/software/matita/help/C/scripts/fix-symbols.sh b/helm/software/matita/help/C/scripts/fix-symbols.sh
index ed45fce9a233bc14410a574a253365edc6737050..eb491489a77254c27c2fd1c064b23d493fbee4d3 100755 (executable)
--- a/helm/software/matita/help/C/scripts/fix-symbols.sh
+++ b/helm/software/matita/help/C/scripts/fix-symbols.sh
@@ -1,4 +1,4 @@
 #!/bin/sh
 
-sed -i 's/\\&\\#x225d;/:=/g' $1
+sed -i 's/\\&\\#x225d;/\\ensuremath{\\stackrel{def}{=}}/g' $1
 sed -i 's/\\&\\#x3a9;/\\ensuremath{\\Omega}/g' $1