An experimental RELAX NG schema for XHTML 2.0 + MathML 2.0 + SVG 1.1 Author: Masayasu Ishikawa (mimasa@w3.org) $Id: xhtml2-math-svg.rng,v 1.2 2003/03/19 05:16:56 mimasa Exp $ Allow MathML and SVG at both block and inline level