Set Notation Flashcards
1
Q
A
The intersection (overlap) of A and B
2
Q
A
The union of A and B (everything in both)
3
Q
A
Complement of A (not A, everything outside of A)
4
Q
A
The universal set (the set of everything)
5
Q
A
a is an element of A (is in the set A)
6
Q
A
A is a subset of B (every element in A is also in B) - (e.g A= 2, 4, 6, 8 B = 2, 4, 6, 8)
7
Q
A
A is a proper subset of B (every element of A is also in B, but A and B are not identical) - (e.g A = 2, 4 B = 2, 4, 6, 8)
8
Q
A
An empty set with no elements
9
Q
A
n = the number of elements in set A
