Number of bijective function
141225
Number of all bijective functions from A to A.
46971
Number of surjections from $\{1,...,m\}$ to $\{1,...,n\}$
22210
Points of discontinuity of a bijective function $f:\mathbb{R} \to [0,\infty)$
57221
counting the number of elements in a conjugacy class of $S_n$
25563
Count number of increasing functions, nondecreasing functions $f: \{1, 2, 3, \ldots, n\} \to \{1, 2, 3, \ldots, m\}$, with $m \geq n$.
82675
What is an example of function $f: \Bbb{N} \to \Bbb{Z}$ that is a bijection?
65953
Cardinality of the set of differentiable functions
40868
Composition of two functions - Bijection
49833
Simple bijection $\mathbb N_0 \times \mathbb N_0 \to \mathbb N_0$
64140
Find a bijection from $\mathbb R$ to $\mathbb R-\mathbb N$
44717
Does there exist a bijective $f:\mathbb{N} \to \mathbb{N}$ such that $\sum f(n)/n^2$ converges?
148731
Constructing a bijection between $[a,b)$ to $(0,1)$
157268
Proving a bijection with absolute value
47027
Function that counts the number of arguments of other functions
97878
Are there uncountably many surjections from $\mathbb N$ to $\mathbb N$?
95747
Number of countable subsets of $\mathbb{R}$
130381
bijection from $(a,b)$ to $\Bbb R$