SOLUTION: How many real subset have a set which contain "n" elements ?

Question 1008982: How many real subset have a set which contain "n" elements ?
Found 2 solutions by fractalier, ikleyn:
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
If the empty set is considered a subset as well as the set itself being a subset then the number of subsets from a set of n elements is

Answer by ikleyn(52878) (Show Source): You can put this solution on YOUR website!
How many real subset have a set which contain "n" elements ?
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