xhtml:emph in hasFactAndProperty schema

Hi,

Obviously not a big deal, but I was a little surprised to find that the 
hasFactAndProperty schema available at 
http://www.w3.org/2001/XMLSchema-hasFactAndProperty doesn't validate 
against the schema for schemas when an XHTML schema is available because 
it uses the non-existent "xhtml:emph" element in place of (I assume) 
"xhtml:em" in some of the documentation. Although the XHTML schemas are 
only a w3c note, the element doesn't appear in the official DTDs 
either... Is this a mistake or am I missing something here?

Lucian

-- 
Lucian Holland, Technical Architect    +44-1865-203192
DecisionSoft Limited                   http://www.decisionsoft.com
XML Development and Services