el="7.3" data-path="sect-work.html"><a href="sect-work.html#rules-in-data-frames"><i class="fa fa-check"></i><b>7.3</b> Rules in data frames</a></li>
<li class="chapter" data-level="7.4" data-path="sect-work.html"><a href="sect-work.html#sect-syntax"><i class="fa fa-check"></i><b>7.4</b> Validation rule syntax</a></li>
<li class="chapter" data-level="7.5" data-path="sect-work.html"><a href="sect-work.html#confrontation-objects"><i class="fa fa-check"></i><b>7.5</b> Confrontation objects</a></li>
<li class="