A Venn diagram contains three different types of regions...areas of non-intersection, areas of intersection, and the area which is neither. The areas of intersection are logically equivalent to the AND function. The areas that aren't inside any of the circles are logically equivalent to the NOT OR (NOR) function. The areas in a single circle only use a the NOT and AND functions.
For example, if you have a Venn diagram of the set {0-9} showing two circles A and B which have intersection elements {4,8}, and the elements of A={1,2,4,5,6,8}, the elements of B = {3,4,7,8}, and the elements {0,9} are outside of both circles:
A OR A = A = {1,2,4,5,6,8}
B OR B = B = {3,4,7,8}
A AND B = {4,8}
NOT (A OR B) = {0,9}
A NOT B = A AND (NOT B) = {1,2,5,6}
B NOT A = B AND (NOT A) = {3,7}
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A Venn diagram is a diagram that shows relationships between 2 things or concepts using circles if there are similarities between both then you overlap the circles.
Named after John Venn, a British logician (1834-1923), the Venn Diagram is commonly used to portray sets and their relationships. Using intersecting circles and other geometric shapes, they help in conceptualizing logical relationships, such as syllogisms.See: venn-diagram
You have to do this. We can't make your Venn diagram for you.
The Venn diagram, created by John Venn in 1880, exhibits all logical relationships between a finite collection of sets. They are now being used to explain relationships in statistics, logic and even computer science technologies.
No country was ever a Venn diagram.