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<a NAME="E1:106"/>
 <a href="finseq_1.html#K3" title="FINSEQ_1:func.3">len</a> <span class="p1">(<span class="default"><a href="afinsq_1.html#K4" title="AFINSQ_1:func.4">&lt;%&gt;</a> <a href="numbers.html#K2" title="NUMBERS:func.2">COMPLEX</a></span>)</span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="numbers.html#K5" title="NUMBERS:func.5">0</a> 
 
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<span class="kw">hence </span><a NAME="E2:106"/>
 for <font color="Olive" title="b1">f</font> being   <a href="xboole_0.html#V1" title="XBOOLE_0:attr.1">empty</a>  <a href="afinsq_1.html#NM1" title="AFINSQ_1:NM.1">XFinSequence</a> holds   <a href="rvsum_4.html#K14" title="RVSUM_4:func.14">XProduct</a> <font color="Olive" title="b1">f</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 1
 <span class="kw">by</span> <span class="lab"><a class="ref" href="binop_2.html#T6" onmouseover="rs('binop_2/T6')" onmouseout="rh()">BINOP_2:6</a>, <a class="ref" href="afinsq_2.html#D8" onmouseover="rs('afinsq_2/D8')" onmouseout="rh()">AFINSQ_2:def 8</a></span>; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> verum</span><br/>


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