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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E1">Th5</font></span>: <a NAME="T5"><span class="comment"><font color="firebrick">:: ORDINAL3:5</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">X</font> being    <a href="hidden.html#M2" title="HIDDEN:mode.2">set</a>  holds   <a href="tarski.html#K3" title="TARSKI:func.3">union</a> <span class="p1">(<span class="default"><a href="ordinal1.html#K2" title="ORDINAL1:func.2">On</a> <font color="Olive" title="b1">X</font></span>)</span> is   <a href="ordinal1.html#V1" title="ORDINAL1:attr.1">epsilon-transitive</a>   <a href="ordinal1.html#V2" title="ORDINAL1:attr.2">epsilon-connected</a>   <a href="hidden.html#M2" title="HIDDEN:mode.2">set</a> </div></div>
