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[ontolog-forum] Concepts, classes, universals

To: ontolog-forum@xxxxxxxxxxxxxxxx
From: Marcelino Sente <zaratruta@xxxxxxxxx>
Date: Sat, 14 Jul 2012 17:15:15 -0300
Message-id: <CANpcTFokfyLPT+O1ytsz2OiswjV_Jqr9HY_9iFMY0U6Q=-73kg@xxxxxxxxxxxxxx>
Thanks Mattew.
I'm not sure if I agree. Is it the case that We cannot consider that both, caterpillar and butterfly, are two phases of the same thing (a Lepidopteran)?

Considering the next terms: Baby, Toddler, Child,Teenager,Young Adult,Adult and Elder. Seems that they represent accidental properties of Person. Do you agree? There are many works in the literature that consider these terms, representations of phased sortals.

But in these examples, the transitions between phases seem to be unidiretional. (I confess that I don't know if it is an necessary constraint in phased sortals).

In the case of the partition induced by the classes "Person that likes icecream" and  "Person that do not likes icecream", seems to accept bidiretional transitions between phases.

Best Regards.

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