Sets of equal cardinality
1396
cardinality of all real sequences
93330
Cardinality of all cardinalities
48523
Let $A$ be any uncountable set, and let $B$ be a countable subset of $A$. Prove that the cardinality of $A = A - B $
272
Cantor Sets/nonempty/cardinality
66301
The cardinality of the set of countably infinite subsets of an infinite set
111954
Computing the cardinality of a combinatorial set
91163
Let the set S be infinite, and the set T countably infinite. Show that S and S U T have the same cardinality
96845
Question: Compare the cardinality between the sets $\Bbb R$ and $\Bbb N^{\Bbb N}$
132537
Class of sets of a given infinite cardinality
13779
Canonical copies of sets
65768
What is the cardinality of the set of the empty set?
127123
Cardinality of power set and binary sequence
122947
What is the cardinality of the set of infinite cardinalities?
150790
Prove two sets have same Cardinality by writing down bijection
95373
Additive set function on a semiring of sets
142631
Show that A has the same cardinality as $A\setminus\{x,y,z\}$
104744
Can sets of cardinality $\aleph_1$ have nonzero measure?