---
tag: 07SG12TQH3
kind: concept
name: T0 space
aliases: [kolmogorov-space]
msc: [54D10]
sources:
  - url: https://en.wikipedia.org/wiki/Kolmogorov_space
    locator: lead section
same_as:
  wikidata: Q1148924
  wikipedia: Kolmogorov space
---

## Summary

A T0 space, or Kolmogorov space, is a topological space in which the open sets can tell any two distinct points apart.
It is the weakest of the usual separation axioms.