----- Original Message -----
From: "Hal E. Fulton" <hal9000 / hypermetrics.com>

<snip chart>

But the arrows in this ASCII chart are the
same as the ones in my drawing. True?
----------------------------

No!  There are two *totally* different kinds of arrows in that chart!
That's what so frequently confuses people.  There are `class' arrows and
`superclass' arrows, and they really do mean totally different things, even
though both can be drawn with arrows.  :)  (That chart is for showing how
the singleton classes fit into the picture, which I'm not sure is necessary
on your chart.)


Chris