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<b>let </b><font color="Maroon">c<sub>1</sub></font>, <font color="Maroon">c<sub>2</sub></font> be    <a href="hidden.html#M1">set</a> ;<br/>



<b>assume </b><a NAME="E1:32"/>
<font color="Maroon">c<sub>1</sub></font> <a href="tarski.html#R1">c=</a>  <a href="funct_6.html#K1" target="_self">SubFuncs</a> <font color="Maroon">c<sub>2</sub></font>
 ;<br/>

<a NAME="E2:32"/><b>then </b>
for <font color="Olive">b<sub>1</sub></font> being   <a href="hidden.html#M1">set</a>  st <font color="Olive">b<sub>1</sub></font> <a href="hidden.html#R2">in</a> <font color="Maroon">c<sub>1</sub></font> holds <br/><font color="Olive">b<sub>1</sub></font> is   <a href="funct_1.html#NM1">Function</a>
 
<b>by </b><i><a class="ref" href="funct_6.html#D1" target="_self">Def1</a></i>;<br/>
<b>hence </b><a NAME="E3:32"/>
 <a href="funct_6.html#K1" target="_self">SubFuncs</a> <font color="Maroon">c<sub>1</sub></font> <a href="hidden.html#R1">=</a> <font color="Maroon">c<sub>1</sub></font>
 <b>by </b><i><a class="txt" href="funct_6.html#E30"><i><font color="Green">Lemma18</font></i></a></i>;<br/>


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