\" Print a rule as long as specified
\" in the first argument
.de rule
\D'l \\$1 0'
..

\" Auto-numbered equation: \\n+[eqnnum]
\" Current equation:       \\n[eqnnum]
.nr eqnnum 0 1

\" Auto-numbered figures: \\n+[fignum]
\" Current figure:        \\n[fignum]
.nr fignum 0 1

\" Auto-numbered tables: \\n+[tblnum]
\" Current table:        \\n[tblnum]
.nr tblnum 0 1