Venn Diagram

Venn Diagram
Venn Diagram- is an illustration that uses circles to show the relationships among
things or finite groups of things.

 Circles that overlap have a commonality while circles that do not overlap do not
share those traits.
 The circles are being placed inside a box, where the box represents the universal
set and the shaded inside of a circle represents the subset of a universal set.

This is an illustration of a Venn Diagram




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Sometimes we will use the Venn Diagram for a particular set whose elements are
known, the elements should be listed accordingly.
Given: U = { 1, 2, 3, 4, 5 } and A = { 2 , 4 }
Let us illustrate the representation of these sets in the Venn diagram.




Disjoint Set can also be represented in a Venn Diagram:

, COMPLEMENT OF A SET:
A' is the shaded part below:
Examples:

1. Using Venn Diagram find A' given U = { 1 , 2, 3, 4, 5 }




2. Using English sentence description find A' Given U = all CE students and A = CE
students who are scholars.

Answer: A' = CE students who are not a scholar.
INTERSECTION OF SET

A ∩∩B is the shaded part below; assume the sets are A and B:




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