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[ontolog-forum] PROF Swartz ON DEFINITIONS

To: ontolog-forum@xxxxxxxxxxxxxxxx
From: FERENC KOVACS <f.kovacs@xxxxxxxxxxxxxx>
Date: Sat, 18 Sep 2010 15:16:43 +0000 (GMT)
Message-id: <699984.5353.qm@xxxxxxxxxxxxxxxxxxxxxxxxxxx>


Recursive Definitions
(Advanced material) By a "direct ancestor" we mean one's "parents, grandparents, great-grandparents, etc." More formally, we might write:

"x is a direct ancestor of y" =df "x is a parent of y; or x is a parent of a parent of y; or x is a parent of a parent of a parent of y; etc."

My comments: is it not the referent that the definition is about?C ompare with the statement in the front above: quote


For example, the term, "pain", is defined, but pain itself is not defined. We define only terms, never their referents. end of quote



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