A Union B Intersection A Union C Venn Diagram
More formally x a b if x a and x b.
A union b intersection a union c venn diagram. The union is notated a b. You can also have the union for more than two sets. A intersect b a union b a a intersect b a intersect b a union b a union b a union b a intersect b a intersect b a union b. The following examples should help you understand the notation terminology and concepts relating venn diagrams and set notation.
Venn diagrams for sets added aug 1 2010 by poodiack in mathematics enter an expression like a union b intersect complement c to describe a combination of two or three sets and get the notation and venn diagram. A complete venn diagram represents the union of two sets. Union intersection and complement. Venn diagrams can be used to express the logical in the mathematical sense relationships between various sets.
On a venn diagram the union is every element within both circles. The intersection is written as a b. The intersection of sets a and b is the set of elements which are in both a and b. More formally x a b if x a or x b or both the intersection of two sets contains only the elements that are in both sets.
Let s say that our universe contains the numbers 1 2 3 and 4 so u 1 2 3 4 let a be the set containing the numbers 1 and 2. The intersection is notated a b. On a venn diagram the intersection of sets a and b is the part where the. Complement of a set.
First draw venn diagram for a u b and then a u b. For sets a b and c the union is written as a b c. The union of two sets contains all the elements contained in either set or both sets. The intersection shows what items are shared between categories.
Intersection of two sets. To represent a u b in venn diagram we have to shade the region other than a and b. It s time to have a serious talk about venn diagrams and we re not talking about the venn diagrams from. Scroll down the page for more examples and solutions on how to shade venn diagrams to represent the required regions of two sets and three sets.
The complement is whatever is not represented in a set.