#ifndef __globals_hh__
#define __globals_hh__
-#define TML_NS_URI "http://helm.cs.unibo.it/2002/TML"
-#define XMLNS_NS_URI "http://www.w3.org/2000/xmlns/"
+#define TML_NS_URI "http://helm.cs.unibo.it/2002/TML"
+#define XMLNS_NS_URI "http://www.w3.org/2000/xmlns/"
+#define MATHML_NS_URI "http://www.w3.org/1998/Math/MathML"
#endif // __globals_hh__