For now, we don’t need to go into the details of sets and set notation,
but we do need to be aware of the different sets of numbers.</p>
<div class="center figure" id="fig-nested_sets" data-tralics-id="uid14" data-number="1.2"><span class="graphics"><img src="images/figures/math/nested_sets.png" alt="nested_sets" style="width:100%;" /></span>
<div class="caption"><span class="header">Figure 1.2: </span><span class="description">An illustration of the nested containment structure of the different number se