SGML Maths DTD for ISO 12083 = semantics-based DTD for Mathematics From: http://www.demon.co.uk/stilo/mathssgml.dtd The eight-character limit for names is not convenient for mathematics and, since it will most probably be changed to 16 or 32 in the reference concrete syntax of the next upgrade of SGML, it has not been observed in this DTD. We have also assumed that typing full math tags will not be necessary with any application sophisticated enough to tackle mathematics so brevity has given way to clarity for the most part.--> ]>