How many functions are there from the set {1,2,...,n} where n is a positive integer, to the set {0,1}

Thank you (Nerd)

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in my opinion it should be 2^n

is it true?

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- October 15th 2008, 01:04 PMNareka counting problem
How many functions are there from the set {1,2,...,n} where n is a positive integer, to the set {0,1}

Thank you (Nerd)

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in my opinion it should be 2^n

is it true? - October 15th 2008, 01:40 PMPlato