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<p><big> Properties </big></p>
<p>The subspace topology has the following characteristic property. Let  be a subspace of  and let  be the inclusion map. Then for any topological space  a map  is continuous <a href="page.php?w=if_and_only_if">if and only if</a> the composite map  is continuous. <a href="page.php?w=Image%3ASubspace-01.svg">center</a>This property is characteristic in the sense that it can be used to define the subspace topology on .</p>

<p>We list some further properties of the subspace topology. In the following let  be a subspace of .</p>

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