Sets up the namespace prefix and URI to use in the XLink linking attributes. See W3C XLink documentation or use the W3C documentation for the XHTML1.1 table model. (http://www.w3.org/TR/xhtml-modularization/abstract_modules.html#s_tablemodule)
The attribute-like “xmlns:xlink” is not a true attribute, but a namespace pseudo-attribute. All namespace prefixes must be associated with a URL, and the prefix “xlink” has been set to the URL for the World Wide Web Consortium (W3C) XLink Recommendation.
mathml2-qname-1.mod