diff --git a/relalg.sty b/relalg.sty
index b029a07..0930305 100755
--- a/relalg.sty
+++ b/relalg.sty
@@ -45,6 +45,10 @@
 % rename operator
 \newcommand{\RelRename}{\ensuremath{\rho}}
 
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% extend operator
+\newcommand{\RelExtend}{\ensuremath{\epsilon}}
+
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %
@@ -133,6 +137,9 @@
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %
 % $Log$
+% Revision 1.7  2010/12/12 01:25:19  nstanger
+% - Normalised the logical AND/OR macros.
+%
 % Revision 1.6  2008/02/27 22:08:36  nstanger
 % - Updated package release date.
 %