Re: Multiple Inheritance and "rigid" properties
Chris, I am willing to be corrected by a better mathematician than myself,
but I believe I was taught that at least one widely accepted definition of
an ellipse included the particular case whose two diameters are equal, i.e.
a circle. I do not reject the possibility of a dfferent definition which
excludes this particular case.
Yours, Martin
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"Christopher A. Welty" <weltyc@cs.vassar.edu> on 21/06/2000 18:34:37
Please respond to "Christopher A. Welty" <weltyc@cs.vassar.edu>
To: standard-upper-ontology@ieee.org
cc: Hugh Darwen/UK/IBM@IBMGB (bcc: Martin King/UK/IBM)
Subject: Re: Multiple Inheritance and "rigid" properties
A circle is NOT an ellipse,
and an ellipse is not a circle. End of story.
-ChrisW
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