Thanks to Art Anger for the comments. Counting to more than nine needs more than one digit position, as ten is written 10. Rather than counting 1 2 3 4 5 6 7 8 9 10 you could write 01 02 03 04 05 06 07 08 09 10 such that every number has two digits. Ordinal fractions do not use digit zero for counting, so the ten symbols could be 11 12 13 14 15 16 17 18 19 21 or 11 12 13 14 15 21 22 23 24 25.
If grandfather of object 11 is the same as grandfather of object 22. The father of 11 is 10, and the father of 22 is 20, and their common grandfather is 00. Please keep asking! Bo. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
