Understanding proper classes vs sets: why the set of all cardinal numbers cannot exist?
158671
Cardinality of a set that consists of all existing cardinalities
49147
Showing that the class of all sets of a particular cardinality is not a set.
30968
Is it possible that every set can be specified?
121366
Intervals and cardinality
70164
Proof exercise that the cardinal number of a set in $\mathbb R^2$ is $\frak c$
54497
Set Notation - Inclusion and Proper Inclusion
59385
Are there number systems corresponding to higher cardinalities than the real numbers?
10472
Is every set a subset?
127233
Cardinality of order types in $\mathbb{N}$
30519
"Real" cardinality, say, $\aleph_\pi$?
108957
Cardinality of a totally ordered union
5230
Why can a 1 element set be a member of another set but not a subset of it?
74281
Proof there is no largest cardinal number
132537
Class of sets of a given infinite cardinality
12436
The cardinality of the set of all finite subsets of an infinite set
7785
Cardinality of sum-set
93330
Cardinality of all cardinalities