Sets up the prefix and URI for the “namespacing” of the MathML elements
In this Tag Set, the attribute-name-like construction “xmlns:%MATHML.prefix;” resolves to xmlns:mml, which is not an attribute, but a namespace pseudo-attribute. The value provides a prefix to use for the MathML elements. All namespace prefixes must be associated with a URL, and the prefix “mml”has been set to the URL for the World Wide Web Consortium (W3C) MathML 2.0 Tag Set.
mathml2-qname-1.mod