Bijection/Function Composition
56156
Composition and Onto Functions
24126
When functions commute under composition
130363
Prove composition of two surjections is surjection
44689
Explicit bijection between $[0,1)$ and $(0,1)$
97854
Difference between bijection and isomorphism?
90264
Combining pure functions
111477
Specify a bijection from [0,1] to (0,1].
110142
1-1 Function Composition
32340
Continuous bijections and their inverses
61
Calculating the total number of surjective functions
113109
Showing that a map is bijective and finding its inverse
117793
Finding a function $\mathbb{N} \to \mathbb{N}$ that is surjective but not injective.
129281
How to compose two functions?
16092
How to prove that the composition of two surjective functions is surjective
31391
bijection between $\mathbb{N}$ and $\mathbb{N}\times\mathbb{N}$
93776
Bijective mapping between $\mathbb{R}^2$ and $\mathbb{R}$?
146436
Cardinality of the set of bijective functions on $\mathbb{N}$?