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<li class="chapter" data-level="1.1.2" data-path="notations-and-functions.html"><a href="notations-and-functions.html#non-negative-numbers"><i class="fa fa-check"></i><b>1.1.2</b> Non-negative numbers</a></li>
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<li class="chapter" data-level="1.2" data-path="notations-and-functions.html"><a href="notations-and-functions.html#interval-notations-and-examples"><i class="fa fa-check"></i><b>1.2</b> Interval Notations and Examples</a>
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