ifier">distance</span><span class="special">(</span><span class="identifier">rng1</span><span class="special">)</span> <span class="special">+</span> <span class="identifier">distance</span><span class="special">(</span><span class="identifier">rng2</span><span class="special">))</span></code>
                do not overlap.
              </li>
<li class="listitem">
                The ranges <code class="computeroutput"><span class="identifier">rng2</span></code> and
                <code class="computerou