<?xml version="1.0" encoding="UTF-8"?>
<xs:schema targetNamespace="http://www.w3.org/1999/xhtml"
           xmlns:xs="http://www.w3.org/2001/XMLSchema"
           xmlns="http://www.w3.org/1999/xhtml"
           xmlns:math="http://www.w3.org/1998/Math/MathML">

  <xs:import namespace="http://www.w3.org/1998/Math/MathML"/>

  <xs:redefine schemaLocation="http://www.w3.org/MarkUp/SCHEMA/xhtml11-model-1.xsd">
    <xs:group name="xhtml.InlSpecial.class">
       <xs:choice>
         <xs:group ref="xhtml.InlSpecial.class"/>
         <xs:element ref="math:math"/>
      </xs:choice>
    </xs:group>
  </xs:redefine>

</xs:schema>