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Re: Empty set is and is not a subset of empty set

From: Andrew Makhorin
Subject: Re: Empty set is and is not a subset of empty set
Date: Thu, 13 Mar 2025 22:33:37 +0300 
BTW, you can replace the statement

   display (100..120 inter 130..150) not within (1..2 inter 3..4);

with

   display not ((100..120 inter 130..150) within (1..2 inter 3..4));

to make it work correctly.
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