![functions - Finding number of surjections from a set $A$ with $n$ elements to a set $B$ with $2$ elements - Mathematics Stack Exchange functions - Finding number of surjections from a set $A$ with $n$ elements to a set $B$ with $2$ elements - Mathematics Stack Exchange](https://i.stack.imgur.com/C5lbt.jpg)
functions - Finding number of surjections from a set $A$ with $n$ elements to a set $B$ with $2$ elements - Mathematics Stack Exchange
How to find the number of injective and surjective functions from [math]B[/math] to [math]A[/math] given [math]A=\{1,2,3,4\}, B=\{1,2,3,4,5,6\}[/math] - Quora
![03 Number of Injective function | Number of Surjective function | number of Bijective function - YouTube 03 Number of Injective function | Number of Surjective function | number of Bijective function - YouTube](https://i.ytimg.com/vi/tG0r72c-zWI/maxresdefault.jpg)
03 Number of Injective function | Number of Surjective function | number of Bijective function - YouTube
![Find the number of surjections (onto f) and from a set A containing 6 elements to a set B cont - YouTube Find the number of surjections (onto f) and from a set A containing 6 elements to a set B cont - YouTube](https://i.ytimg.com/vi/UK5mYYgooRg/maxresdefault.jpg)
Find the number of surjections (onto f) and from a set A containing 6 elements to a set B cont - YouTube
![combinatorics - Calculating the number of ways a surjective function can be defined. - Mathematics Stack Exchange combinatorics - Calculating the number of ways a surjective function can be defined. - Mathematics Stack Exchange](https://i.stack.imgur.com/ohL0X.png)
combinatorics - Calculating the number of ways a surjective function can be defined. - Mathematics Stack Exchange
![Number of Surjections from Set - A containing n elements to the Set -B containing 2 elements is30 then n is Number of Surjections from Set - A containing n elements to the Set -B containing 2 elements is30 then n is](https://d10lpgp6xz60nq.cloudfront.net/ss/web/154619.jpg)