Set Notation + Venn Diagram Flashcards
1
Q
Set
A
a collection of items - { }
2
Q
Element
A
each item in a set - ∈
3
Q
Not an element
A
not an element in the set - ∉
4
Q
Intersection
A
what’s in common in two sets - ∩
5
Q
Union
A
everything in two sets - ∪
6
Q
Empty set
A
no elements in a set - ∅
7
Q
Universal set
A
all the possible elements - ξ
8
Q
Complement
A
element that is not in a set or more sets - ‘
9
Q
Subset
A
all elements of one set that is also in another set - C
10
Q
n(set)
A
Number of elements in a set - n(Set)
11
Q
A
