ingOrder(a, c)</code> is also
<code>true</code>. (Transitive comparability)</li><li>Two elements are <em>incomparable</em> if neither is ordered before the other
according to the predicate. If <code>a</code> and <code>b</code> are incomparable, and <code>b</code>
and <code>c</code> are incomparable, then <code>a</code> and <code>c</code> are also incomparable.
(Transitive incomparability)</li></ul>

<p>This example shows how to use the <code>min(by:)</code> method on a
dictionary to find the key-value pair 