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<b>let </b><font color="Maroon">SAS</font> be   <a href="semi_af1.html#NM1">Semi_Affine_Space</a>;<br/><b>let </b><font color="Maroon">b</font> be   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">SAS</font>;<br/><b>let </b><font color="Maroon">a</font> be   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">SAS</font>;<br/><b>let </b><font color="Maroon">p</font> be   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">SAS</font>;<br/><b>let </b><font color="Maroon">q</font> be   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">SAS</font>;<br/><b>let </b><font color="Maroon">c</font> be   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">SAS</font>;<br/><b>let </b><font color="Maroon">r</font> be   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">SAS</font>;<br/>













<b>assume </b><a NAME="E1:75"/>
(  <a href="semi_af1.html#R3" target="_self">congr</a> <font color="Maroon">b</font>,<font color="Maroon">a</font>,<font color="Maroon">p</font>,<font color="Maroon">q</font> &amp;  <a href="semi_af1.html#R3" target="_self">congr</a> <font color="Maroon">c</font>,<font color="Maroon">a</font>,<font color="Maroon">p</font>,<font color="Maroon">r</font> )
 ;<br/>

<a NAME="E2:75"/><b>then </b>
 <a href="semi_af1.html#R3" target="_self">congr</a> <font color="Maroon">b</font>,<font color="Maroon">c</font>,<font color="Maroon">r</font>,<font color="Maroon">q</font>
 
<b>by </b><i><a class="ref" href="semi_af1.html#T37" target="_self">Th37</a></i>;<br/>
<a NAME="E3:75"/><b>then </b>
<font color="Maroon">b</font>,<font color="Maroon">c</font> <a href="analoaf.html#R2">//</a> <font color="Maroon">r</font>,<font color="Maroon">q</font>
 
<b>by </b><i><a class="ref" href="semi_af1.html#T15" target="_self">Th15</a></i>;<br/>
<b>hence </b><a NAME="E4:75"/>
<font color="Maroon">b</font>,<font color="Maroon">c</font> <a href="analoaf.html#R2">//</a> <font color="Maroon">q</font>,<font color="Maroon">r</font>
 <b>by </b><i/>;<br/>


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