Meaning of a notation of interget set on another set
3101
Meaning of a set in the exponent
33982
What's inside InterpolatingFunction[{{1., 4.}}, ]?
11849
Size of a union of two sets
150907
Notation and the name choice for meet and join (in order theory)
44285
What does this notation mean? F|U
22482
How can an ordered pair be expressed as a set?
32296
Calling a space a set - abuse of terminology?
19260
What does the notation $q^k || n$ mean?
70327
the numer of partial function between two sets in combinatoric way
24708
Why is $\operatorname{Int}(A) \cup \operatorname{Int}(B) \neq \operatorname{Int}(A \cup B)$?
17212
The preimage of a subset
42062
Interpretation of a combinatorial expression
28942
About Math notation: the set of the first $n$ natural numbers
113005
What does this notation mean? $f(x) \equiv A$?
87830
Relating the union of the power set of a set to the set itself
4676
Notation for repeated composition of functions
858
Is $\{\emptyset\}$ a subset of $\{\{\emptyset\}\}$?