thanks for the reply. I can see that this is consistent for rank 2 and above. The rank 1 case is the bit that isn't making sense to me right now.
(n$0) , i. 2 [ n=: 0 0 1 (n$0) , i. 2 [ n=: 1 0 0 1 ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
