Surjective Function

Statement

A Function $f: A \to B$ is surjective if for every element $b \in B$ there exists an element $a \in A$ such that $f(a) = b$.

Explanation

Proof(s)

History

Applications

Links

Dependencies

• Function

Dependents

• Bijection

Sources

• Hrbacek, K., & Jech, T. (1999). Introduction to Set Theory, Revised and Expanded (3rd ed.). CRC Press. https://doi.org/10.1201/9781315274096