---
tag: 011EJQWWJS
kind: concept
name: Strictly monotone function
msc: [26A48]
sources:
  - url: https://en.wikipedia.org/wiki/Monotonic_function
    locator: In calculus and analysis
---

## Summary

A strictly monotone function is a function that is either strictly increasing or strictly decreasing. Such a function is injective. The node [[strictly monotone function|0TR9SR9FTB]] gives the precise definition.