Let A be a set of k (k>0) elements. Which is larger between the number of binary relations (say, Nr) on A and the number of functions (say, Nf) from A to A?

number of subsets of the relation

Let A be a set of k (k>0) elements. Which is larger between the number

1.	Let A be a set of k (k>0) elements. Which is larger between the number of binary relations (say, Nr) on A and the number of functions (say, Nf) from A to A?
A.	number of relations
B.	number of functions
C.	the element set
D.	number of subsets of the relation
Answer» B. number of functions

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Let A be a set of k (k>0) elements. Which is larger between the number of binary relations (say, Nr) on A and the number of functions (say, Nf) from A to A?

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