Question 1084185
<pre>
There are 3 elements, so there are 2<sup>3</sup> = 8 subsets,
counting the empty set and the improper subset, which is the
whole set.

1.  { }       <--the empty set is a subset of every set.
2.  {1}
3.  {2}
4.  {3}
5.  {1,2}
6.  {1,3}
7.  {2,3}
8.  {1,2,3}   <--the only improper subset, as the other 7 
                 are proper subsets.

Edwin</pre>