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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E27">Th25</font></span>: <a NAME="T30"><span class="comment"><font color="firebrick">:: MODAL_1:30</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">n</font> being   <a href="ordinal1.html#NM6" title="ORDINAL1:NM.6">Nat</a> holds  <span class="p1">(<span class="default"><a href="trees_1.html#K2" title="TREES_1:func.2">elementary_tree</a> <a href="numbers.html#K5" title="NUMBERS:func.5">0</a></span>)</span> <a href="funcop_1.html#K7" title="FUNCOP_1:func.7">--&gt;</a> <span class="p1"><a href="tarski.html#K4" title="TARSKI:func.4">[</a><span class="default">3,<font color="Olive" title="b1">n</font></span><a href="tarski.html#K4" title="TARSKI:func.4">]</a></span> is   <a href="modal_1.html#NM3" title="MODAL_1:NM.3">MP-wff</a></div></div>
