Sub-number counters.
The macros in this package allow all counters to be subnumbered, as for example 4a, 4b, 4c, simply by bracketting the objects to be so numbered with appropriate on/off commands. They will work with any user-defined counters too.
The package is part of the preprint bundle.
The author is Patrick W. Daly. The package is Copyright © 1993-1999 Patrick W Daly.
License: lppl Version: 4.5 Catalogued: 2012-06-04
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Documentation
Package documentation: sublabel.pdf.