Transcript Set Theory
Set Theory
Definitions
Sets
A collection of elements or items.
Symbol: =
Elements
The individual objects in a set.
Symbol:
Subsets
When all the elements of a set are
also elements of another set.
Symbol:
Union
All of the elements from 2 or more
sets.
Symbol:
Intersection
A set of elements that 2 or more sets
have in common.
Symbol:
Complement
A set of elements that are NOT in a
given set.
Symbol: A
{5}
{Positive integers}
{1,2,3}
U
U={all real numbers}