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<div><span class="kw">theorem </span><a NAME="T31"><span class="comment"><font color="firebrick">:: WAYBEL15:31</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">L</font> being   <a href="waybel_1.html#V11" title="WAYBEL_1:attr.11">Boolean</a>  <a href="waybel_0.html#NM8" title="WAYBEL_0:NM.8">LATTICE</a> holds <br/> ( <font color="Olive" title="b1">L</font> is  <a href="waybel_8.html#V3" title="WAYBEL_8:attr.3">arithmetic</a>  iff <font color="Olive" title="b1">L</font> is  <a href="waybel_5.html#V1" title="WAYBEL_5:attr.1">completely-distributive</a>  )</div></div>
