jkraska1 at san.rr.com
Tue May 22 17:38:49 CEST 2001
>That's because there isn't any. If an object *is* simultaneously two or
>more types of things (e.g., a table is simultaneously a hard surface AND a
>piece of furniture, whereas a counter-top is just a hard surface), then it
>makes sense to be able to express it as such accordingly.
But yet *is a* relationships are an artificially constrained way of thinking
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