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<h1>MathML Namespace</h1>

<p>If MathML is being used by an application that conforms to the <a href="https://www.w3.org/TR/REC-xml-names">Namespaces in XML</a>
Recommendation, then the following namespace should be used:</p>

<blockquote>
  <tt>http://www.w3.org/1998/Math/MathML </tt></blockquote>

<p>Typical usage would be:</p>
<pre>  &lt;math xmlns="http://www.w3.org/1998/Math/MathML"&gt;
  . . .</pre>

<p>It is not a requirement of the XML Namespaces Recommendation that there is
any accessible resource at the URI used for a namespace name, although for
information purposes, a copy of this file may be downloaded from the above
URL.</p>

<p>The current MathML Recommendation may be obtained from <a href="https://www.w3.org/TR/MathML"> http://www.w3.org/TR/MathML
</a></p>

<p>At the present time (July 2011) the current version is MathML&nbsp;3.0, links
to this and earlier versions are listed below.</p>
<dl>
  <dt>MathML&nbsp;3.0
    <dd><a href="https://www.w3.org/TR/2010/REC-MathML3-20101021/">http://www.w3.org/TR/2010/REC-MathML3-20101021/</a>
  <dt>MathML 2.0 (2nd ed.)</dt>
    <dd><a href="https://www.w3.org/TR/2003/REC-MathML2-20031021/">http://www.w3.org/TR/2003/REC-MathML2-20031021/</a></dd>
  <dt>MathML 1.01:</dt>
    <dd><a href="https://www.w3.org/1999/07/REC-MathML-19990707">http://www.w3.org/1999/07/REC-MathML-19990707</a></dd>
  <dt>MathML 1.0:</dt>
    <dd><a href="https://www.w3.org/TR/1998/REC-MathML-19980407/">http://www.w3.org/TR/1998/REC-MathML-19980407/</a></dd>
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