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<b>let </b><font color="Maroon">c<sub>1</sub></font> be   <a href="funct_1.html#NM1">Function</a>;<br/>

<b>assume </b><a NAME="E1:69_1_1"/>
<font color="Maroon">c<sub>1</sub></font> is <a href="trees_3.html#V5" target="_self">FinTree-yielding</a>
 ;<br/>

<a NAME="E2:69_1_1"/><b>then </b>
 <a href="relat_1.html#K2">rng</a> <font color="Maroon">c<sub>1</sub></font> is  <a href="trees_3.html#V2" target="_self">constituted-FinTrees</a>  <a href="hidden.html#M1">set</a> 
 
<b>by </b><i><a class="ref" href="trees_3.html#D10" target="_self">Def10</a></i>;<br/>
<b>hence </b><a NAME="E3:69_1_1"/>
 <a href="relat_1.html#K2">rng</a> <font color="Maroon">c<sub>1</sub></font> is <a href="trees_3.html#V1" target="_self">constituted-Trees</a>
 ; <i><font color="Red">:: according to </font></i><a class="ref" href="trees_3.html#D9" target="_self">TREES_3:def 9</a><br/>


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