What shapes are used in a Venn diagram?
A Venn diagram uses overlapping circles or other shapes to illustrate the logical relationships between two or more sets of items. Often, they serve to graphically organize things, highlighting how the items are similar and different.
– ∪: Union of two sets. A complete Venn diagram represents the union of two sets.
– ∩: Intersection of two sets. The intersection shows what items are shared between categories.
– Ac: Complement of a set.