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- From: steinman@hslrswi.hasler.ascom.ch (Jan Steinman - Bytesmiths, 3946)
- Subject: Re: Equality
- Message-ID: <1992Dec23.144730.8070@hasler.ascom.ch>
- Sender: news@hasler.ascom.ch
- Reply-To: steinman@hslrswi.hasler.ascom.ch
- Organization: Ascom Hasler AG
- References: <1992Dec23.123438.18914@nntp.nta.no>
- Date: Wed, 23 Dec 1992 14:47:30 GMT
- Lines: 28
-
- In article 18914@nntp.nta.no, klaus@hal.nta.no (Klaus Gaarder) writes:
- >In article <1992Dec22.234147.480@neptune.inf.ethz.ch>
- >santas@inf.ethz.ch (Philip) writes:
-
- >To my knowledge the only sensible interpretation of 'equality' and the relation
- >usually written '=' is as _identity_. Ie, 'x=y' is interpreted as true iff x and
- >y denote _the same (mathematical)object_. The thread of discussion would probably
- >benefit from exchanging 'equality' with 'equivalent', since this seems to be what
- >the discussion is all about. Do not confuse 'equal to' with 'equivalent to'!
-
- So, you have two coins in your pocket of the same value. The two are not equal
- because they are not the same coin? Equality and Identity are fundamentally
- different, perhaps, although not necessarily, for "value" objects, and usually,
- although again not necessarily, for non-value objects.
-
- It is necessary to model values, whether by coins, objects, or by graphite
- smeared on bleached, pressed wood fiber. Models are necesarily approximations,
- and are optimized for different purposes. Since the '3' inside a computer is
- but a model, it is *never* the pattern of phosphors that cause a '3' to be
- displayed on a screen, and is *never* the same as the concept of "threeness"
- that registers in the mind of someone reading that screen. Are these all
- inequal because they are different?
-
- ---
- : : Jan Steinman, Bytesmiths steinman@hasler.ascom.ch : :
- : : 2002 Parkside Court, West Linn, OR 97068-2767 USA +1 503 657 7703 : :
- : : Beundenfeldstrasse 35, CH-3013, Bern, Switzerland +41 31 999 3946 : :
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