MathML entities issue in DITA 1.3

I was looking at the MathML DTD fileset in the DITA 1.3 DTDs. In the file "mathml3-ditadriver.dtd", the following setting excludes the MathML entities:

	<!-- DITA-specific: Don't allow use of general text entities. DITA documents should not
	     have any general text entity references.
	  -->
	<!ENTITY % mathml-charent.module "IGNORE" >

From the comment along with it, this seems to be intentional. But then how will MathML actually work with DITA 1.3, if these entities cannot be included in the DITA files ?


Regards,
Tarun Garg | Adobe Systems | +91-120-2444711 |