What makes a set into a "space"?
48344
What does a space mean?
72440
Partition a set into $k$ non-empty subsets
95897
Which sets occur as boundaries of other sets in topological spaces?
65549
What is the cartesian product of an empty set of sets?
22498
In set theory, how are real numbers represented as sets?
111236
Is there a reference for compact imbedding of Hölder space?
114968
Partition of a set, definition not clear
112290
Weird behavior of & function in Set
30968
Is it possible that every set can be specified?
46317
What is an Empty set?
81351
Polish space in which the interior of each compact set is empty
30729
Need explanation on Resident Set Size/Virtual Size
11849
Size of a union of two sets
42046
How to tell if a set of vectors spans a space?
82487
Define a mathematical set
50906
How to write special set notation by hand?
18364
When does the set enter set theory?