Venn Diagrams | Set
Venn diagrams
The diagram drawn to represent sets are called Venn-diagram. In Venn-diagram the universal set U is represented by points within the rectangle and its subsets are represented points in closed curves (usually circles) within the rectangle. If a set A is a subset of a set B, then the circles representing A is drawn inside the circle representing B as shown in Fig (i). If A and B are not equal but have some common elements then to represent A and B we draw two intersecting circles as shown in Fig (ii). Two disjoint sets are represented by two non-intersecting circles as shown in Fig (iii).
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| Fig (ii) |
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| Fig (iii) |
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| Fig (i) |