The union of two sets contains every element that appears in either set.
What Is Union?
The union of two sets contains every element that appears in either set.
Examples of Union
1
{1,2} ∪ {2,3} = {1,2,3}.Formula and Key Points
Formula / rule
A ∪ B
- Know the definition and standard notation for Union.
- Be able to recognise or compute union in a small example.
- Connect the concept to nearby topics in the same subject before using it in larger CSE problems.
Why This Matters in Computer Science
Used in databases, data structures, automata, logic, query operations, permissions and discrete mathematics.
Related Math Terms
Union: Frequently Asked Questions
What is Union?
The union of two sets contains every element that appears in either set.
Why is Union useful in computer science?
Used in databases, data structures, automata, logic, query operations, permissions and discrete mathematics.