How many functions are there from the set {1,2,...,n} where n is a positive integer, to the set {0,1} Thank you --------------------------------------- in my opinion it should be 2^n is it true?
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Originally Posted by Narek How many functions are there from the set {1,2,...,n} where n is a positive integer, to the set {0,1} in my opinion it should be $\displaystyle 2^n$ is it true? YES.
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