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<b>let </b><font color="Maroon">OAS</font> be   <a href="analoaf.html#NM1">OAffinSpace</a>;<br/><b>let </b><font color="Maroon">f</font> be   <a href="funct_2.html#NM2">Permutation</a> of the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">OAS</font>;<br/>



<b>assume </b><a NAME="E1:44"/><i><font color="Green">E22</font></i>: 
<font color="Maroon">f</font> <a href="transgeo.html#NR4" target="_self">is_CDil</a> 
 ;<br/>

<a NAME="E2:44"/><i><font color="Green">E25</font></i>: 
<font color="Maroon">OAS</font> is   <a href="transgeo.html#NM1">CongrSpace</a>
 
<b>by </b><i><a class="ref" href="transgeo.html#T4" target="_self">Th4</a></i>;<br/>
<a NAME="E3:44"/>
<font color="Maroon">f</font> <a href="transgeo.html#R3" target="_self">is_DIL_of</a> <font color="Maroon">OAS</font>
 
<b>by </b><i>, <a class="txt" href="transgeo.html#E1:44"><i><font color="Green">E22</font></i></a></i>;<br/>
<a NAME="E4:44"/><b>then </b>
<font color="Maroon">f</font> <a href="funct_2.html#K2">"</a>  <a href="transgeo.html#R3" target="_self">is_DIL_of</a> <font color="Maroon">OAS</font>
 
<b>by </b><i>, </i>;<br/>
<b>hence </b><a NAME="E5:44"/>
<font color="Maroon">f</font> <a href="funct_2.html#K2">"</a>  <a href="transgeo.html#NR4" target="_self">is_CDil</a> 
 <b>by </b><i><a class="txt" href="transgeo.html#E1:44"><i><font color="Green">E22</font></i></a></i>;<br/>


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