Re: multiple inheritance

[Dietrich Fischer <fischer@DARMSTADT.GMD.DE>]

Dear Matthew, you wrote
> ...Clearly "country" is not a primitive concept,
> ...
... probably there is no disagreement between us if you interpret
my words as put into parenthesis in my text
"a primitive (undefined or partially defined) concept" as a
synonym in this context.
In fact, I thought that I used the term "primitive" in the sense as
Description Logic (DL)
uses it, and do not think that they (DL fans) think (as well as I do
not)
that "primitive concepts in DL sense" are not very complex and important
ones,
but concepts for which full definitions (in DL sense) are not or should
aimed at to be given.

When I had said:
If it makes sense to assert that an undefined concept D is a subconcept of A
and is also a subconcept of B...
I still wanted to find a more "clear" example (than "bunch of bricks") where it makes sense...
and  for this, I pointed back to the paper whose birth had created the
"multiple inheritance" avalanche. The issue of that paper still wants to be discussed!?

Dietrich