COMMENT ā VALID 00002 PAGES C REC PAGE DESCRIPTION C00001 00001 C00002 00002 % Special macros for DBL C00003 ENDMK Cā; % Special macros for DBL \def\threstar #1{ \vfill\yyskip {\hbox {\inbox{\inbox{\hbox{\tt #1}}}}} \yskip} \def\forall{\mathrel{\char'470}} \def\hook{\mathrel{\char'472}} \def\inbox#1{\vbox{\hrule\hbox{\vrule\hskip 2pt \vbox{\vskip 2pt #1 \vskip 2pt}\hskip 2pt\vrule}\hrule}}