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<b>consider </b><font color="Maroon" title="c5">a</font> being   <a href="pre_topc.html#NM2" title="PRE_TOPC:NM.2">Point</a> of <font color="Maroon" title="c2">RAS</font>;<br/>
<b>take </b>
 <a href="midsp_3.html#K8" title="MIDSP_3:func.8">Phi</a> <font color="Maroon" title="c5">a</font>,<font color="Maroon" title="c4">x</font>
;<br/>

<b>thus </b><a NAME="E2:45_1_1"/>
for <font color="Olive" title="b1">a</font> being  <a href="pre_topc.html#NM2" title="PRE_TOPC:NM.2">Point</a> of <font color="Maroon" title="c2">RAS</font> holds   <a href="midsp_3.html#K8" title="MIDSP_3:func.8">Phi</a> <font color="Maroon" title="c5">a</font>,<font color="Maroon" title="c4">x</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="midsp_3.html#K8" title="MIDSP_3:func.8">Phi</a> <font color="Olive" title="b1">a</font>,<font color="Maroon" title="c4">x</font>
 <b>by </b><i><a class="ref" href="midsp_3.html#T25" target="_self" title="MIDSP_3:th.25">Th25</a></i>;<br/>


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