> f@:g and f&:g (in their monadic cases) are equivalent > but are not the composition of f on g; what they > compose is the results of changing (the ranks of) their > arguments rather than the arguments themselves. The > same holds of [: f g (in its monadic case).
Are not Atop and At both able to keep, or alter, the rank at which an argument verb is applied? I think whether rank is changed depends on the rank of the verb. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
