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<b>let </b><font color="Maroon" title="c10">CLSP</font> be  <a href="collsp.html#V4" title="COLLSP:attr.4">proper</a> <a href="collsp.html#NM2" title="COLLSP:NM.2">CollSp</a>;<br/><b>let </b><font color="Maroon" title="c11">a</font>, <font color="Maroon" title="c12">b</font> be   <a href="pre_topc.html#NM2" title="PRE_TOPC:NM.2">Point</a> of <font color="Maroon" title="c10">CLSP</font>;<br/>





<b>assume </b><a NAME="E1:40"/>
<font color="Maroon" title="c11">a</font> <a href="hidden.html#NR2" title="HIDDEN:NR.2">&lt;&gt;</a> <font color="Maroon" title="c12">b</font>
 ;<br/>

<a NAME="E2:40"/><b>then </b>
not for <font color="Olive" title="b1">r</font> being  <a href="pre_topc.html#NM2" title="PRE_TOPC:NM.2">Point</a> of <font color="Maroon" title="c10">CLSP</font> holds  <font color="Maroon" title="c11">a</font>,<font color="Maroon" title="c12">b</font>,<font color="Olive" title="b1">r</font> <a href="collsp.html#R1" title="COLLSP:pred.1">is_collinear</a> 
 
<b>by </b><i><a class="ref" href="collsp.html#T19" target="_self" title="COLLSP:th.19">Th19</a></i>;<br/>
<b>hence </b><a NAME="E3:40"/>
 <a href="collsp.html#K1" title="COLLSP:func.1">Line</a> <font color="Maroon" title="c11">a</font>,<font color="Maroon" title="c12">b</font> <a href="hidden.html#NR2" title="HIDDEN:NR.2">&lt;&gt;</a> the <a href="struct_0.html#U1" title="STRUCT_0:sel.1">carrier</a> of <font color="Maroon" title="c10">CLSP</font>
 <b>by </b><i><a class="ref" href="collsp.html#T17" target="_self" title="COLLSP:th.17">Th17</a></i>;<br/>


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