/div>
<p>
        In the above example, the values of the operands are reported for inspection,
        which is more valuable as a copy of the full statement. However, we can observe
        that they are not treated symmetrically:
      </p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
            "<code class="computeroutput"><span class="identifier">a</span> <span class="special">-</span>
            <span class="number">1</span> <span class="