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<b>let </b><font color="Maroon">c<sub>3</sub></font> be   <a href="geomtrap.html#NM2">OrdTrapSpace</a>;<br/><b>let </b><font color="Maroon">c<sub>4</sub></font> be    <a href="hidden.html#M1">set</a> ;<br/>



<a NAME="E1:101"/>
 <a href="diraf.html#K2">Lambda</a> <font color="Maroon">c<sub>3</sub></font> <a href="hidden.html#R1">=</a>  <a href="analoaf.html#G1">AffinStruct</a>(# the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">c<sub>3</sub></font>,<span class="p1">(<span class="default"><a href="diraf.html#K1">lambda</a> the <a href="analoaf.html#U1">CONGR</a> of <font color="Maroon">c<sub>3</sub></font></span>)</span> #)
 
<b>by </b><i><a class="ref" href="diraf.html#D2">DIRAF:def 2</a></i>;<br/>
<b>hence </b><a NAME="E2:101"/>
( <font color="Maroon">c<sub>4</sub></font> is   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">c<sub>3</sub></font> iff <font color="Maroon">c<sub>4</sub></font> is   <a href="struct_0.html#NM1">Element</a> of <span class="p1">(<span class="default"><a href="diraf.html#K2">Lambda</a> <font color="Maroon">c<sub>3</sub></font></span>)</span> )
 ;<br/>


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