%Schema.xmlns;
Set Up Namespace For Schema
Sets up the URI for the “namespacing” of the W3C XSD Schema elements (part of the MathML DTD setup)
Model
<!ENTITY % Schema.xmlns "http://www.w3.org/2001/XMLSchema-instance" >
<!ENTITY % Schema.xmlns "http://www.w3.org/2001/XMLSchema-instance" >
Book Interchange Tag Suite (BITS) Version 2.0 Tag Library
Version of February 2016