Wikipedia:Categories for deletion/Numerical categories

Category:Binary digits, Category:Ternary digits, Category:Hexadecimal digit and Category:Roman numeral symbol. Also, Category:Digits, which only exists for this foursome.
 * This is pretty pointless, and better illustrated in the articles on the same name. These aren't categories of related articles, they're long-hand for {0,1}, {-1,0,1}, {0123456789ABCDEF} and {IVXLCDM}. Radiant_* 11:40, Apr 11, 2005 (UTC)
 * Delete. Not a very useful categorization.  --Azkar 13:51, 11 Apr 2005 (UTC)
 * Delete. Articles should define these terms not categories. And the articles themselves should be in a category called Number bases or whatever the correct terms is. Greg Robson 16:10, 11 Apr 2005 (UTC)
 * They are in Category:Numeration. Radiant_* 18:55, Apr 11, 2005 (UTC)
 * Delete. No possible use. – Smyth\talk 11:14, 14 Apr 2005 (UTC)