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ASSERT, ports, and NIL

To: David Bartley <Bartley%ti-csl.csnet@CSNET-RELAY.ARPA>
Subject: ASSERT, ports, and NIL
From: Bill Rozas <JINX%MIT-OZ@MIT-MC.ARPA>
Date: 27 Mar 1985 15:27 EST (Wed)
Cc: Scheme@MIT-MC.ARPA
In-reply-to: Msg of 27 Mar 1985 11:38-EST from David Bartley <Bartley%ti-csl.csnet at csnet-relay.arpa>

	I don't understand the problem.

	NULL? is essential, and as far as I know it is the only
appropriate way to detect an empty list.

	How NULL? is implemented (in terms of EQ?, etc) is irrelevant.

	As far as I'm concerned there are multiple list terminators
all of which are NULL?

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