---
tag: 02GK6HZYBT
kind: concept
name: Transitive action
msc: [20B05]
sources:
  - url: https://en.wikipedia.org/wiki/Group_action
    locator: Transitivity properties
---

## Summary

A group action is transitive when it has exactly one orbit.
Then each point can be moved onto each other point by some element of the group.