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<b>let </b><font color="Maroon" title="c7">POS</font> be   <a href="analmetr.html#NM1" title="ANALMETR:NM.1">OrtAfSp</a>;<br/><b>let </b><font color="Maroon" title="c8">a</font>, <font color="Maroon" title="c9">b</font>, <font color="Maroon" title="c10">c</font> be   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <font color="Maroon" title="c7">POS</font>;<br/><b>let </b><font color="Maroon" title="c11">a'</font>, <font color="Maroon" title="c12">b'</font>, <font color="Maroon" title="c13">c'</font> be   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <span class="p1">(<span class="default"><a href="analmetr.html#K3" title="ANALMETR:func.3">Af</a> <font color="Maroon" title="c7">POS</font></span>)</span>;<br/>





<b>assume </b><a NAME="E1:69"/><i><font color="Green" title="E55">A1</font></i>: 
( <font color="Maroon" title="c8">a</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c11">a'</font> &amp; <font color="Maroon" title="c9">b</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c12">b'</font> &amp; <font color="Maroon" title="c10">c</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c13">c'</font> )
 ;<br/>

<div><b>hereby </b>
<div class="add"><b>assume </b><a NAME="E1:69_1"/>
 <a href="analmetr.html#R5" title="ANALMETR:pred.5">LIN</a> <font color="Maroon" title="c8">a</font>,<font color="Maroon" title="c9">b</font>,<font color="Maroon" title="c10">c</font>
 ;<br/><a NAME="E2:69_1"/><b>then </b>
<font color="Maroon" title="c8">a</font>,<font color="Maroon" title="c9">b</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c8">a</font>,<font color="Maroon" title="c10">c</font>
 <b>by </b><i><a class="ref" href="analmetr.html#D11" target="_self" title="ANALMETR:def.11">Def11</a></i>;<br/><a NAME="E3:69_1"/><b>then </b>
<font color="Maroon" title="c11">a'</font>,<font color="Maroon" title="c12">b'</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c11">a'</font>,<font color="Maroon" title="c13">c'</font>
 <b>by </b><i><a class="txt" href="analmetr.html#E1:69"><i><font color="Green" title="E55">A1</font></i></a>, <a class="ref" href="analmetr.html#T48" target="_self" title="ANALMETR:th.48">Th48</a></i>;<br/><b>hence </b><a NAME="E4:69_1"/>
 <a href="aff_1.html#R1" title="AFF_1:pred.1">LIN</a> <font color="Maroon" title="c11">a'</font>,<font color="Maroon" title="c12">b'</font>,<font color="Maroon" title="c13">c'</font>
 <b>by </b><i><a class="ref" href="aff_1.html#D1" title="AFF_1:def.1">AFF_1:def 1</a></i>;<br/></div>
<b>end;</b></div>

<b>assume </b><a NAME="E3:69"/>
 <a href="aff_1.html#R1" title="AFF_1:pred.1">LIN</a> <font color="Maroon" title="c11">a'</font>,<font color="Maroon" title="c12">b'</font>,<font color="Maroon" title="c13">c'</font>
 ;<br/>

<a NAME="E4:69"/><b>then </b>
<font color="Maroon" title="c11">a'</font>,<font color="Maroon" title="c12">b'</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c11">a'</font>,<font color="Maroon" title="c13">c'</font>
 
<b>by </b><i><a class="ref" href="aff_1.html#D1" title="AFF_1:def.1">AFF_1:def 1</a></i>;<br/>
<a NAME="E5:69"/><b>then </b>
<font color="Maroon" title="c8">a</font>,<font color="Maroon" title="c9">b</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c8">a</font>,<font color="Maroon" title="c10">c</font>
 
<b>by </b><i><a class="txt" href="analmetr.html#E1:69"><i><font color="Green" title="E55">A1</font></i></a>, <a class="ref" href="analmetr.html#T48" target="_self" title="ANALMETR:th.48">Th48</a></i>;<br/>
<b>hence </b><a NAME="E6:69"/>
 <a href="analmetr.html#R5" title="ANALMETR:pred.5">LIN</a> <font color="Maroon" title="c8">a</font>,<font color="Maroon" title="c9">b</font>,<font color="Maroon" title="c10">c</font>
 <b>by </b><i><a class="ref" href="analmetr.html#D11" target="_self" title="ANALMETR:def.11">Def11</a></i>;<br/>


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