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0100
0100
Total Subsets
16
The total number of subsets of an n-element set, including the empty set and the full set, 2^n.
Proper Subsets
15
The number of subsets excluding the full set itself, 2^n - 1.
Subsets of Size k
6
The number of subsets containing exactly k elements, the binomial coefficient n choose k.
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