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From: Miklos@YALE.ARPA
Newsgroups: net.ai
Subject: Essence of Things?
Message-ID: <1230@sri-arpa.UUCP>
Date: Wed, 23-May-84 09:49:21 EDT
Article-I.D.: sri-arpa.1230
Posted: Wed May 23 09:49:21 1984
Date-Received: Fri, 1-Jun-84 04:52:10 EDT
Lines: 19

From:  Stephen Miklos <Miklos@YALE.ARPA>

It is not too difficult to come up with a practical problem in which the
identity of the greek ship is important. To wit:
In year One, the owner of the ship writes a last will and testament,
leaving "my ship and all its fittings and appliances" to his nephew.
The balance of his estate he leaves to his wife. In Year Two, he commences
to refit his ship one board at a time. After a few years he has a pile of
old boards which he builds into a second ship. Then he dies.
A few hypotheticals:
   1. Suppose both ships are in existence at the time of probate.
   2. Suppose the old-board ship had been destroyed in a storm.
   3. Suppose the new-board ship had been destroyed in a storm.
   4. Suppose the original ship had been refitted by replacing the old
      boards with fiberglass

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