Question 865069:  Consider selecting four elements, a, b, c, and d, from the set  
A = {a, b, c, d, e}. 
 List all possible subsets of A consisting of these four elements. (Remember to use set-builder notation. 
 
 Answer by jim_thompson5910(35256)      (Show Source): 
You can  put this solution on YOUR website! Here are all the subsets of size 4:
 
 
 
{a,b,c,d} Note: we're excluding 'e' 
{a,b,c,e} Note: we're excluding 'd' 
{a,b,d,e} Note: we're excluding 'c' 
{a,c,d,e} Note: we're excluding 'b' 
{b,c,d,e} Note: we're excluding 'a'
 
 
 
There are 5 subsets of size 4. 
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