Maths Flashcards
1
Q
What does this mean? - AuB
A
The union, both of the circles
2
Q
What is this mean AnB
A
Intersection, in between
3
Q
What does this symbol mean #
A
Cardinal number, total number in a set
4
Q
What does this stand for z
A
Interges
5
Q
What is this symbol for ‘
A
Complement, not including
6
Q
Does the numbers in a set have to be in order?
A
No
7
Q
What do you have to have in a set?
A
Curly brackets {}
8
Q
What is this set called? - {}
A
A null set
