ncremental modifications at any level of detail.
I showed how Erdmann's original lattice, which I'm sure he
would admit is very limited, can be extended by adding more
distinctions to his table.  Any or all of your distinctions
can be incorporated in the lattice by makind additions and/or
deletions one at a time (or two or three or more at a time,
if you like).  At every step of the way, you have a lattice,
which can be automatically extended as far as you like.

The important point is to have a systematic 