Question 756670
list the subsets of u={a,b,c,d,e,f,}
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There are 64 of them.
Start with {}, then
single element sets, then 2, 3, etc.
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You can do it like this:
write the numbers from 0 to 63 in binary
0 0 0 0 0 0
0 0 0 0 0 1
0 0 0 0 1 0
.
.
.
1 1 1 1 1 1
Then sub a thru f for 1's in vertical position.