---
tag: 0J2WAR83WP
kind: concept
name: Inverse function
aliases: [inverse-map]
msc: ["03E20"]
sources:
  - url: https://en.wikipedia.org/wiki/Inverse_function
    locator: lead section
same_as:
  wikidata: Q191884
  wikipedia: Inverse function
---

## Summary

The inverse function of a bijection reverses it: it sends each value back to the input that gives it.