Sets & Venns - symbols Flashcards
1
Q
⊂
A
Subset of
2
Q
Q
A
Rational Numbers
3
Q
∈
A
Is an element of
4
Q
∅
A
Disjoint
5
Q
∩
A
Intersect
6
Q
n(A)
A
Number of elements in set A
7
Q
{ }
A
Empty set
8
Q
⊆
A
Subset of or equal to
9
Q
∉
A
Is not an element of
10
Q
R
A
Real numbers
11
Q
’
A
Compliment
12
Q
|
A
Such that
13
Q
N
A
Natural numbers
14
Q
A’
A
Compliment of set A
15
Q
U
A
Union
