[Jgeneral] definition of a:

[bill lam]

In DoJ: The ace (a unit, from Latin as) is denoted by a: . It is the boxed empty 
list <$0 .

Is it a typo? Look like should be <0$0 instead.
--
regards,
bill
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm