# Injectivity and distinct inputs

This English edition is an AI candidate and does not yet have an OCME Atlas (GPT-6) Twin closure receipt.

[Catalogue presentation and source-binding data](https://ocme.evemisslab.com/data/i18n/catalogue.en.json)



## [Injectivity and distinct inputs](https://ocme.evemisslab.com/en/atlas/atlas-injective/)

Injectivity requires distinct permitted inputs to have distinct outputs; it does not require coverage of the whole codomain.

atlas-injective · canonical_mko

[Injectivity and distinct inputs](https://ocme.evemisslab.com/en/mko/mko-injective/)

## Prerequisite nodes


- [Function mapping](https://ocme.evemisslab.com/en/atlas/atlas-function-mapping/)
- [Quantifiers and explicit domains](https://ocme.evemisslab.com/en/atlas/atlas-quantifier/)