<HEAD><TITLE>discuss@charon: [48] in "Coldmud discussion meeting"</TITLE>
<H1>[48] in Coldmud discussion meeting</H1></HEAD>
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<HR><H2>clear parameters</H2>
<H3>daemon@ATHENA.MIT.EDU (Thu Nov 18 11:36:12 1993
)</H3>
<PRE>
Date: Thu, 18 Nov 1993 10:31:01 -0600
From: Steven Owens &lt;uso01@mailhost.unidata.com&gt;
To: nils@mcmuse.mc.maricopa.edu
Cc: quinn@dus.mountain.net, deforest@netcom.com, ghudson@MIT.EDU,
        coldstuff@MIT.EDU
In-Reply-To: nils mccarthy's message of Tue, 16 Nov 1993 15:37:37 -0700 &lt;9311162237.AA18919@mcmuse.mc.maricopa.edu&gt;


&gt; i always thought clearish variables should work in the following way:
&gt;
&gt; if a variable had the same value as the one on its parent, it would be
&gt; considered clear, and not stored in the database.

	What if my variable has the same value as the one on the parent
because I *want* it to be that value, and they just happen to be the
same value?  I think the Lambda approach is most reasonable;  set up 
some sort of value representing "the empty set" and refer to the parent's
variable in that case.

Steven J. Owens
uso01@unidata.com
</PRE>
