Proving $(0,1)$ and $[0,1]$ have the same cardinality
10458
How to define a bijection between $(0,1)$ and $(0,1]$?
114262
Find the cardinality of the following set $S_n=\{(x,y)|x^2+y^2=n, \text{where }x,y,n \in \mathbb Z\text{ and }n\geq0 \}$
23442
Cardinality of the union of infinite and countable sets
67066
Proof there is a 1-1 correspondence between an uncountable set and itself minus a countable part of it
127720
Prove that $\bigcup_{n \in \Bbb{N}} [1/n,1] = (0,1]$.
89167
Cardinality of equivalence relations in $\mathbb{N}$
93330
Cardinality of all cardinalities
59459
Binary sequences and ${2}^{\mathbb{N}}$ have the same cardinality
94363
Prove: Any open interval has the same cardinality of $\Bbb R$ (without using trigonometric functions)
22869
Prove $[0, 1]$ and $(0, 1]$ are equinumerous by use of bijection
142631
Show that A has the same cardinality as $A\setminus\{x,y,z\}$
55978
Prove that for every countable ordinal $\alpha$, $\alpha\times[0,1)$ is order isomoprhic to $[0,1)$
150790
Prove two sets have same Cardinality by writing down bijection
73850
Cardinality of set of functions
27478
Proof that two basis of a vector space have the same cardinality in the infinite-dimensional case
106325
Question about Cardinality
86535
Prove quotient of two $N(0,1)$ is $\text{Cauchy}(0,1)$