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- Path: sparky!uunet!mcsun!uknet!edcastle!aiai!jeff
- From: jeff@aiai.ed.ac.uk (Jeff Dalton)
- Newsgroups: sci.philosophy.tech
- Subject: Re: Dualism
- Message-ID: <7882@skye.ed.ac.uk>
- Date: 10 Nov 92 14:33:38 GMT
- References: <1992Oct29.135623.11557@oracorp.com>
- Sender: news@aiai.ed.ac.uk
- Organization: AIAI, University of Edinburgh, Scotland
- Lines: 30
-
- In article <1992Oct29.135623.11557@oracorp.com> daryl@oracorp.com (Daryl McCullough) writes:
- >In article <1992Oct26.232936.119348@Cookie.secapl.com>,
- >frank@Cookie.secapl.com (Frank Adams) writes:
-
- >>No, because it is not an *arbitrary* description here. If I abstract
- >>from the atmosphere of a planet to a description in terms of ideal
- >>gases, I don't get an arbitrary such description; my choice of
- >>abstraction forces a single description on me.
- >
- >Exactly. Your choice of abstraction produces a unique description, but
- >there is more than one possible abstraction. What I am denying is that
- >there is a unique, objective abstraction operator that can tell me the
- >functional organization of a physical system (as opposed to a formal
- >system such as a program).
-
- It's true that there is more than one such operator, but that
- doesn't mean we can't find the right one for a given purpose.
-
- >I will agree that *given* an abstraction function, and *given* a
- >decomposition of a system into parts, then it may be possible to say,
- >objectively, whether the system with that decomposition and that
- >abstraction function has a certain functional organization. However,
- >the choice of abstraction function and decomposition are not
- >objective, and can be done in more than one way.
-
- The choice can be done in more than one way, but so what?
-
- What do you mean by saying it's not objective?
-
- -- jd
-