# Topological Spaces on Three Points

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A topological space can be defined as a pair , where is a set of points and (a topology) is a collection of subsets of called open that satisfy four conditions:

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Contributed by: S. M. Blinder (May 2018)

Open content licensed under CC BY-NC-SA

## Snapshots

## Details

Snapshot 1: fulfills the condition for a topology

Snapshot 2: is not a topology, since the subset is missing

Snapshot 3: is not a topology, since the element is missing

Reference

[1] Wikipedia. "Topological Space." (May 11, 2018) en.wikipedia.org/wiki/Topological_space.

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