Re: Is {{}} a valid construct?
From: Neo <neo55592_at_hotmail.com>
Date: 6 Feb 2007 19:18:56 -0800
Message-ID: <1170818336.185544.149570_at_a34g2000cwb.googlegroups.com>
Date: 6 Feb 2007 19:18:56 -0800
Message-ID: <1170818336.185544.149570_at_a34g2000cwb.googlegroups.com>
Suppose I have a box that contains an apple and orange and I want to
represent the box's content and not any part of the box. Using set
theory, it would look like this:
U = {apple, orange}
Next I add nothing to the box. From discussion in this thread, it
appears all here, expect me, would would represent it as follows
because nothing is treated as something:
U = {apple, orange, {}}
Now I do a reality check. I count the number of things in the box and
get 2. I count the number of elements in the set and I get 3 :(