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<b>let </b><font color="Maroon">c<sub>1</sub></font> be  <a href="bintree2.html#V1" target="_self">full</a> <a href="trees_1.html#NM1">Tree</a>;<br/>

<i><font color="Green">E24</font></i>:  <a href="euclid.html#K5">0*</a> 1 = 
1 <a href="finseq_2.html#K2">|-&gt;</a> 0

<br/>.= 
<span class="p1"><a href="binarith.html#K13">&lt;*</a><span class="default"><a href="margrel1.html#K7">FALSE</a> </span><a href="binarith.html#K13">*&gt;</a></span>
<b>by </b><i><a class="ref" href="finseq_2.html#T73">FINSEQ_2:73</a>, <a class="ref" href="margrel1.html#T36">MARGREL1:36</a></i>
;<br/>
<b>thus </b><span class="p1">(<span class="default"><a href="bintree2.html#K2" target="_self">FinSeqLevel</a> 1,<font color="Maroon">c<sub>1</sub></font></span>)</span> <a href="funct_1.html#K1">.</a> 2 = 
<span class="p1">(<span class="default"><a href="bintree2.html#K2" target="_self">FinSeqLevel</a> 1,<font color="Maroon">c<sub>1</sub></font></span>)</span> <a href="funct_1.html#K1">.</a> <span class="p1">(<span class="default">2 <a href="series_1.html#K3">to_power</a> 1</span>)</span>
<b>by </b><i><a class="ref" href="power.html#T30">POWER:30</a></i>
<br/>.= 
<span class="p1"><a href="binarith.html#K13">&lt;*</a><span class="default">1</span><a href="binarith.html#K13">*&gt;</a></span>
<b>by </b><i><a class="txt" href="bintree2.html#E1:34"><i><font color="Green">E24</font></i></a>, <a class="ref" href="bintree2.html#T16" target="_self">Th16</a>, <a class="ref" href="binari_3.html#T15">BINARI_3:15</a>, <a class="ref" href="margrel1.html#T36">MARGREL1:36</a></i>
;<br/>


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