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<li class="chapter" data-level="0.4" data-path="index.html"><a href="index.html#an-open-source-book"><i class="fa fa-check"></i><b>0.4</b> An open source book</a></li>
<li class="chapter" data-level="0.5" data-path="index.html"><a href="index.html#acknowledgements"><i class="fa fa-check"></i><b>0.5</b> Acknowledgements</a></li>
</ul></li>
<li class="chapter" data-level="1" data-path="introduction.html"><a href="introduction.html"><i class="f