How to prove equality of the cardinality two sets?
105425
The intervals $(2,4)$ and $(-1,17)$ have the same cardinality
69166
Cardinality of $\mathbb{R}$ and $\mathbb{R}^2$
146436
Cardinality of the set of bijective functions on $\mathbb{N}$?
117047
exponentiation of cardinal number
113211
Arithmetics of cardinalities: if $|A|=|C|$ and $|B|=|D|$ then $|A\times B|=|D\times C|$
59459
Binary sequences and ${2}^{\mathbb{N}}$ have the same cardinality
144735
Possible cardinality of power sets
138283
$|(a,b)| = |\Bbb R|$ ? Cardinality of any open interval
42603
How can I prove that the cadinality of a set minus a finite number of elements of it is still the same as the original set?
141227
How to show the integers have same cardinality as the natural numbers?
144787
Show that the set of all infinite subsets of $\mathbb{N}$ has cardinality greater than $\mathbb{N}$
49440
Prove that the interval $ \ [0,2)$ and $ \ [5,6) \cup [7,8)$ have the same cardinality
114262
Find the cardinality of the following set $S_n=\{(x,y)|x^2+y^2=n, \text{where }x,y,n \in \mathbb Z\text{ and }n\geq0 \}$
86263
How do we show there are the same number of elements in each of the sets?
79974
The cardinality of Lebesgue sets
23442
Cardinality of the union of infinite and countable sets
156783
$\mathbb R$ has the same cardinality of any interval