=====discrete Keyword 2=====
subset

====Definition====
A subset is a set which every element in the set is contained in a larger or equal size set. In other words a set with in a set.
====References====
List any sites, books, or sources utilized when researching information on this topic. (Remove any filler text).

  * wikipedia
  * Matt
  * Class

=====discrete Keyword 2 Phase 2=====
union

====Definition====
Union is the combination of the elements of two sets, without any duplicates. 

====References====
List any sites, books, or sources utilized when researching information on this topic. (Remove any filler text).

  * "Union (computer science)"  http://en.wikipedia.org/wiki/Union_%28computer_science%29



====Demonstration====
Demonstration of the indicated keyword.

A={1,3,5,7,9,}
B={1,2,4,6,8}
A U B={1,2,3,4,5,6,7,8,9}