From: Ian Horrocks (horrocks@cs.man.ac.uk)
Date: 12/22/00

p.s. I added a comment to daml+oil.daml as follows:

<!-- Note that cardinality restrictions on transitive properties, or     -->
<!-- properties with transitive sub-properties, compromise decidability. -->

It's a bit vague I know, but this didn't seem to be the place for
anything more detailed. Let me know if you want to change/delete it.


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