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<b>let </b><font color="Maroon" title="c3">OTS</font> be   <a href="geomtrap.html#NM2" title="GEOMTRAP:NM.2">OrdTrapSpace</a>;<br/><b>let </b><font color="Maroon" title="c4">a1'</font>, <font color="Maroon" title="c5">b1'</font>, <font color="Maroon" title="c6">a'</font>, <font color="Maroon" title="c7">b'</font>, <font color="Maroon" title="c8">c'</font>, <font color="Maroon" title="c9">d'</font> be   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <span class="p1">(<span class="default"><a href="diraf.html#K2" title="DIRAF:func.2">Lambda</a> <font color="Maroon" title="c3">OTS</font></span>)</span>;<br/>













<b>assume </b><b>that </b><br/><a NAME="E1:105"/><i><font color="Green" title="E89">A1</font></i>: 
<font color="Maroon" title="c4">a1'</font> <a href="hidden.html#NR2" title="HIDDEN:NR.2">&lt;&gt;</a> <font color="Maroon" title="c5">b1'</font>
 <b>and </b><br/><a NAME="E2:105"/><i><font color="Green" title="E90">A2</font></i>: 
( <font color="Maroon" title="c4">a1'</font>,<font color="Maroon" title="c5">b1'</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c6">a'</font>,<font color="Maroon" title="c7">b'</font> &amp; <font color="Maroon" title="c4">a1'</font>,<font color="Maroon" title="c5">b1'</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c8">c'</font>,<font color="Maroon" title="c9">d'</font> )
 ;<br/>

<b>reconsider </b><font color="Maroon" title="c10">a1</font> = <font color="Maroon" title="c4">a1'</font>, <font color="Maroon" title="c11">b1</font> = <font color="Maroon" title="c5">b1'</font>, <font color="Maroon" title="c12">a</font> = <font color="Maroon" title="c6">a'</font>, <font color="Maroon" title="c13">b</font> = <font color="Maroon" title="c7">b'</font>, <font color="Maroon" title="c14">c</font> = <font color="Maroon" title="c8">c'</font>, <font color="Maroon" title="c15">d</font> = <font color="Maroon" title="c9">d'</font> as   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <font color="Maroon" title="c3">OTS</font> <b>by </b><i><a class="ref" href="geomtrap.html#T50" target="_self" title="GEOMTRAP:th.50">Th50</a></i>;<br/>
<a NAME="E4:105"/>
( ( <font color="Maroon" title="c10">a1</font>,<font color="Maroon" title="c11">b1</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c12">a</font>,<font color="Maroon" title="c13">b</font> or <font color="Maroon" title="c10">a1</font>,<font color="Maroon" title="c11">b1</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c13">b</font>,<font color="Maroon" title="c12">a</font> ) &amp; ( <font color="Maroon" title="c10">a1</font>,<font color="Maroon" title="c11">b1</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c14">c</font>,<font color="Maroon" title="c15">d</font> or <font color="Maroon" title="c10">a1</font>,<font color="Maroon" title="c11">b1</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c15">d</font>,<font color="Maroon" title="c14">c</font> ) )
 
<b>by </b><i><a class="txt" href="geomtrap.html#E2:105"><i><font color="Green" title="E90">A2</font></i></a>, <a class="ref" href="geomtrap.html#T51" target="_self" title="GEOMTRAP:th.51">Th51</a></i>;<br/>
<a NAME="E5:105"/><b>then </b>
( <font color="Maroon" title="c12">a</font>,<font color="Maroon" title="c13">b</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c14">c</font>,<font color="Maroon" title="c15">d</font> or <font color="Maroon" title="c12">a</font>,<font color="Maroon" title="c13">b</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c15">d</font>,<font color="Maroon" title="c14">c</font> or <font color="Maroon" title="c13">b</font>,<font color="Maroon" title="c12">a</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c14">c</font>,<font color="Maroon" title="c15">d</font> or <font color="Maroon" title="c13">b</font>,<font color="Maroon" title="c12">a</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c15">d</font>,<font color="Maroon" title="c14">c</font> )
 
<b>by </b><i><a class="txt" href="geomtrap.html#E1:105"><i><font color="Green" title="E89">A1</font></i></a>, <a class="ref" href="geomtrap.html#D14" target="_self" title="GEOMTRAP:def.14">Def14</a></i>;<br/>
<a NAME="E6:105"/><b>then </b>
( <font color="Maroon" title="c12">a</font>,<font color="Maroon" title="c13">b</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c14">c</font>,<font color="Maroon" title="c15">d</font> or <font color="Maroon" title="c12">a</font>,<font color="Maroon" title="c13">b</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c15">d</font>,<font color="Maroon" title="c14">c</font> )
 
<b>by </b><i><a class="ref" href="geomtrap.html#D14" target="_self" title="GEOMTRAP:def.14">Def14</a></i>;<br/>
<b>hence </b><a NAME="E7:105"/>
<font color="Maroon" title="c6">a'</font>,<font color="Maroon" title="c7">b'</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c8">c'</font>,<font color="Maroon" title="c9">d'</font>
 <b>by </b><i><a class="ref" href="geomtrap.html#T51" target="_self" title="GEOMTRAP:th.51">Th51</a></i>;<br/>


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