Sets Flashcards
0
Q
What are the elements of the set
A
The members that make up the set
1
Q
What is a set
A
A well-defined group of objects.
2
Q
What is a cardinal number
A
The number of elements in the set
3
Q
What are equal sets
A
Sets that have the same elements
4
Q
What are equivalent sets
A
When the sets have the same cardinal number
5
Q
Why a is a subset
A
When every element of one set in in another
6
Q
What is the union of two sets
A
The set of elements in both sets
7
Q
What is intersection
A
The set of elements that occur in both sets.
8
Q
What does e mean
A
Is an element of
9
Q
What does e(with a cros) mean
A
Is not an element of…
10
Q
What does # mean
A
Cardinal number
11
Q
What does { } mean
A
Empty set
12
Q
What does c mean
A
Is a subset of
13
Q
What does c(with a cross) mean
A
Is not. A subset of
14
Q
What does u mean
A
Union of two sets
