Deck Flashcards
1
Q
x ∈ S
A
X is a member of S
2
Q
x ∉ S
A
X is not a member of S
3
Q
{a₁, ……, aₙ}
A
List of elements of a set
4
Q
{x | P (x)}
A
Set builder notion
5
Q
N
A
Set of natural numbers
6
Q
Z
A
Set of integers
7
Q
𝑍+
A
Set of positive integers
8
Q
Q
A
Set of rational numbers
9
Q
R
A
Set of real numbers
10
Q
S = T
A
Set equality
11
Q
∅
A
The empty (or null)
12
Q
S ⊆ T
A
S is a subset of T
13
Q
S ⊂ T
A
S is a proper subset of T
14
Q
S |
A
Cardinality of S
15
Q
𝒫(S)
A
The power set of S
16
Q
(a₁, ……, aₙ)
A
N-tuple
17
Q
(a, b)
A
Ordered pair
18
Q
A × B
A
Cartesian product of A and B
19
Q
A ∪ B
A
Union of A and B
20
Q
A
21
Q
A ∩ B
A
Intersection of A and B
22
Q
A - B
A
The difference of A and B
23
Q
Ā
A
Complement of A
24
Q
A
25
Q
A
