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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E34">ThA1</font></span>: <a NAME="T87"><span class="comment"><font color="firebrick">:: ABSRED_0:87</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">s</font> being    <a href="hidden.html#M2" title="HIDDEN:mode.2">set</a>  holds <br/> ( <font color="Olive" title="b1">s</font> is   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <a href="absred_0.html#K1" title="ABSRED_0:func.1">ARS_01</a> iff ( <font color="Olive" title="b1">s</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="ordinal1.html#K5" title="ORDINAL1:func.5">0</a>  or <font color="Olive" title="b1">s</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 1 ) )</div></div>
