and so i gather that what tells
them from each other would be the conjunctions of features
that circumscribe them from above, as viewed from their
several places in the hierarchy, if i read that right.
see the rest of the lattice and my transcription
of it at these locations:

<A  HREF="http://www.bestweb.net/~sowa/ontology/toplevel.htm">http://www.bestweb.net/~sowa/ontology/toplevel.htm</A>
<A  HREF="http://suo.ieee.org/ontology/msg03571.html">http://suo.ieee.org/ontology/msg03571.html</A>

DM, quoting JL: