--- /dev/null
+\ProvidesPackage{dsfont}
+ [1995/08/01 v0.1 Double stroke roman fonts]
+
+\def\ds@whichfont{dsrom}
+\DeclareOption{sans}{\def\ds@whichfont{dsss}}
+\ProcessOptions\relax
+
+\DeclareMathAlphabet{\mathds}{U}{\ds@whichfont}{m}{n}
+\endinput