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<b>consider </b><font color="Maroon" title="c2">t</font> being  <a href="finset_1.html#V1" title="FINSET_1:attr.1">finite</a> <a href="bintree1.html#V1" title="BINTREE1:attr.1">binary</a> <a href="trees_1.html#NM1" title="TREES_1:NM.1">Tree</a>;<br/>
<b>consider </b><font color="Maroon" title="c3">T</font> being   <a href="funct_2.html#NM1" title="FUNCT_2:NM.1">Function</a> of <font color="Maroon" title="c2">t</font>,<font color="Maroon" title="c1">D</font>;<br/>
<a NAME="E3:8_1_1"/>
 <a href="relset_1.html#K5" title="RELSET_1:func.5">rng</a> <font color="Maroon" title="c3">T</font> <a href="tarski.html#R1" title="TARSKI:pred.1">c=</a> <font color="Maroon" title="c1">D</font>
 
;<br/>
<b>then reconsider </b><font color="Maroon" title="c4">T</font> = <font color="Maroon" title="c3">T</font> as   <a href="trees_2.html#NM6" title="TREES_2:NM.6">DecoratedTree</a> of <font color="Maroon" title="c1">D</font> <b>by </b><i><a class="ref" href="trees_2.html#D9" title="TREES_2:def.9">TREES_2:def 9</a></i>;<br/>
<b>take </b>
<font color="Maroon" title="c4">T</font>
;<br/>

<a NAME="E5:8_1_1"/>
 <a href="relat_1.html#NK2" title="RELAT_1:NK.2">dom</a> <font color="Maroon" title="c4">T</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c2">t</font>
 
<b>by </b><i><a class="ref" href="funct_2.html#D1" title="FUNCT_2:def.1">FUNCT_2:def 1</a></i>;<br/>
<b>hence </b><a NAME="E6:8_1_1"/>
(  <a href="relat_1.html#NK2" title="RELAT_1:NK.2">dom</a> <font color="Maroon" title="c4">T</font> is <a href="bintree1.html#V1" title="BINTREE1:attr.1">binary</a> &amp; <font color="Maroon" title="c4">T</font> is <a href="finset_1.html#V1" title="FINSET_1:attr.1">finite</a> )
 ; <i><font color="Red">:: according to </font></i><a class="ref" href="bintree1.html#D3" target="_self" title="BINTREE1:def.3">BINTREE1:def 3</a><br/>


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