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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E15">Th20</font></span>: <a NAME="T20"><span class="comment"><font color="firebrick">:: FINSEQ_5:20</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">f</font> being   <a href="finseq_1.html#NM1" title="FINSEQ_1:NM.1">FinSequence</a>  st  not <font color="Olive" title="b1">f</font> is  <a href="xboole_0.html#V1" title="XBOOLE_0:attr.1">empty</a>  holds <br/><font color="Olive" title="b1">f</font> <a href="finseq_1.html#K16" title="FINSEQ_1:func.16">|</a> 1 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1"><a href="finseq_1.html#K9" title="FINSEQ_1:func.9">&lt;*</a><span class="default"><span class="p2">(<span class="default"><font color="Olive" title="b1">f</font> <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> 1</span>)</span></span><a href="finseq_1.html#K9" title="FINSEQ_1:func.9">*&gt;</a></span></div></div>
