How to derive the number of on-to functions from A $\rightarrow$ B?
46971
Number of surjections from $\{1,...,m\}$ to $\{1,...,n\}$
55420
How does the chain rule work for functions from vectors to vectors?
48891
Show that: lim$_{n\rightarrow \infty}\,f(x_n)=f(\text{lim}_{n \rightarrow \infty} \, x_n)$
22856
Ways to go from A to B(proof)
39563
How to show $a,b$ coprime to $n\Rightarrow ab$ coprime to $n$?
117716
Condition on function $f:\mathbb{R}\rightarrow \mathbb{R}$ so that $(a,b)\mapsto | f(a) - f(b)|$ generates a metric on $\mathbb{R}$
37958
Derive a formula to find the number of trailing zeroes in $n!$
63007
Number of self-inverse matrices over prime field
40566
Counting surjective functions
57221
counting the number of elements in a conjugacy class of $S_n$
29403
Finding functions $f: \Bbb R_*^+ \to \Bbb R_*^+$ with certain properties
26169
Function $f: \mathbb{R} \to \mathbb{R}$ that takes each value in $\mathbb{R}$ three times
131530
Derivative of a pure function with SlotSequence
55924
How many distinct functions can be defined from set A to B?
93459
Number of permutations of unspecified length
110142
1-1 Function Composition
97908
Finding the no. of possible matrices given the order and limited no. of entries