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<b>take </b><font color="Maroon" title="c1">t</font> =  <a href="trees_4.html#K2" title="TREES_4:func.2">root-tree</a> <a href="numbers.html#K6" title="NUMBERS:func.6">0</a> ; <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide"> <font color="Maroon" title="c1">t</font> is <a href="trees_9.html#V1" title="TREES_9:attr.1">root</a></span><br/>

<b>thus </b><a NAME="E1:15_1_1"/>
 <a href="relat_1.html#NK2" title="RELAT_1:NK.2">dom</a> <font color="Maroon" title="c1">t</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="trees_1.html#K2" title="TREES_1:func.2">elementary_tree</a> <a href="numbers.html#K6" title="NUMBERS:func.6">0</a> 
 <b>by </b><i><a class="ref" href="trees_4.html#T3" title="TREES_4:th.3">TREES_4:3</a></i>; <i><font color="Red">:: according to </font></i><a class="ref" href="trees_9.html#D1" target="_self" title="TREES_9:def.1">TREES_9:def 1</a> <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide"> verum</span><br/>


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