Connected and disconnected spaces
<a href="//commons.wikimedia.org/wiki/User:Sarang" class="mw-redirect" title="User:Sarang">Sarang</a>
<a href="//commons.wikimedia.org/wiki/File:Connected_and_disconnected_spaces.svg" class="image"><img alt="Connected and disconnected spaces.svg" src="https://upload.wikimedia.org/wikipedia/commons/thumb/9/95/Connected_and_disconnected_spaces.svg/48px-Connected_and_disconnected_spaces.svg.png" decoding="async" width="48" height="48" class="thumbborder" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/9/95/Connected_and_disconnected_spaces.svg/72px-Connected_and_disconnected_spaces.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/9/95/Connected_and_disconnected_spaces.svg/96px-Connected_and_disconnected_spaces.svg.png 2x" data-file-width="175" data-file-height="175"></a><a href="//commons.wikimedia.org/wiki/File:Connected_and_disconnected_spaces.svg" title="File:Connected and disconnected spaces.svg">Connected and disconnected spaces.svg</a>