This is not an attribute, but the 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 of the World Wide Web Consortium (W3C) MathML 2.0 Tag Set.
| Value | Meaning |
|---|---|
| http://www.w3.org/1998/Math/MathML | The prefix “mml” has been set to this URL, the URL of the W3C MathML 2.0 Tag Set. |
| Restriction: |
|