The <a href="https://en.wikipedia.org/wiki/complete_graph" class="extiw" title="en:complete graph">complete graph</a> of order 5, K<sub>5</sub> with labels
<ul><li><a href="//commons.wikimedia.org/wiki/File:Complete_Graph_K5.svg" title="File:Complete Graph K5.svg">Complete_Graph_K5.svg</a>: <a href="//commons.wikimedia.org/wiki/User:Joey-das-WBF" title="User:Joey-das-WBF">Johannes Rössel</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Joey-das-WBF" title="User talk:Joey-das-WBF"><span class="signature-talk">talk</span></a>)</li>
<li>derivative work: <a href="//commons.wikimedia.org/wiki/User:Robert_Illes" title="User:Robert Illes">Robert Illes</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Robert_Illes" title="User talk:Robert Illes"><span class="signature-talk">talk</span></a>)</li></ul>
<ul><li><a href="//commons.wikimedia.org/wiki/File:Complete_Graph_K5.svg" title="File:Complete Graph K5.svg">Complete_Graph_K5.svg</a></li></ul>