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From: hubey@pegasus.montclair.edu (H. M. Hubey)
Subject: Logical Derivative (was Re: logic of change
Message-ID: <hubey.778550613@pegasus.montclair.edu>
Keywords: logic, dynamic, temporal, time, sets, classes
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Date: Sat, 3 Sep 1994 00:03:33 GMT
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Xref: glinda.oz.cs.cmu.edu comp.object.logic:235 sci.logic:8107 sci.philosophy.tech:15721


THis thread reminded me of a cryptic sentence I had just read in a book
on Walsh functions. The author mentions something called "the
logical derivative" by Gibbs (?). I had been meaning ask about this.

Can anyone give us a clue as to what this "logical derivative" is?




--
						-- Mark---
....we must realize that the infinite in the sense of an infinite totality, 
where we still find it used in deductive methods, is an illusion. Hilbert,1925
