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<div><span class="kw">theorem </span><a NAME="T13"><span class="comment"><font color="firebrick">:: TREES_4:13</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">x</font> being    <a href="hidden.html#M1" title="HIDDEN:mode.1">object</a> <br/>  for <font color="Olive" title="b2">T</font> being   <a href="trees_2.html#NM4" title="TREES_2:NM.4">DecoratedTree</a> holds   <a href="relat_1.html#NK1" title="RELAT_1:NK.1">dom</a> <span class="p1">(<span class="default"><font color="Olive" title="b1">x</font> <a href="trees_4.html#K5" title="TREES_4:func.5">-tree</a> <font color="Olive" title="b2">T</font></span>)</span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="trees_3.html#K12" title="TREES_3:func.12">^</a> <span class="p1">(<span class="default"><a href="relat_1.html#NK1" title="RELAT_1:NK.1">dom</a> <font color="Olive" title="b2">T</font></span>)</span></div></div>
