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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E91">Th64</font></span>: <a NAME="T64"><span class="comment"><font color="firebrick">:: SURREALN:64</font></span><br/></a><div class="add"> <a href="surrealn.html#K8" title="SURREALN:func.8">No_Ordinal_op</a> <a href="numbers.html#K5" title="NUMBERS:func.5">0</a> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="surreal0.html#K11" title="SURREAL0:func.11">0_No</a> </div></div>
