Can we create all subsets of all sets?
30968
Is it possible that every set can be specified?
148025
Is there an operator for 'contained in set or subset or subset of subset' and so on?
93748
Alternative to Subsets to generate k-combinations
59813
Prove that for all sets A and B, A ∩ B = ∅ implies ( A ∪ B ) - B = A
91485
Finding an uncountable chain of subsets the integers
148399
Two sets which contain each other as elements
142583
Subsets of the Cantor set
4213
The set that only contains itself
58594
Is the empty set a subset of itself?
3392
Sum of products of elements of nonempty subsets of A set
153305
Adding subsets of regular cardinals (Jech p. 226)
44214
The number of subsets of a set of cardinality $n$
153072
Guessing a subset of $\{1,...,N\}$
71976
Is every element on a set also a set?
90826
Constructing a subset not in $\mathcal{B}(\mathbb{R})$ explicitly
146098
Number of nonempty subsets of a set with $n$ elements
93330
Cardinality of all cardinalities