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for <font color="Olive">b<sub>1</sub></font>, <font color="Olive">b<sub>2</sub></font>, <font color="Olive">b<sub>3</sub></font>, <font color="Olive">b<sub>4</sub></font>, <font color="Olive">b<sub>5</sub></font>, <font color="Olive">b<sub>6</sub></font> being  <a href="pre_topc.html#NM2">Point</a> of <font color="Maroon">c<sub>9</sub></font> holds <br/>( ( ( <font color="Olive">b<sub>1</sub></font> <a href="hidden.html#R1">=</a> <font color="Olive">b<sub>2</sub></font> or <font color="Olive">b<sub>1</sub></font> <a href="hidden.html#R1">=</a> <font color="Olive">b<sub>3</sub></font> or <font color="Olive">b<sub>2</sub></font> <a href="hidden.html#R1">=</a> <font color="Olive">b<sub>3</sub></font> ) implies <span class="p1"><a href="domain_1.html#K4">[</a><span class="default"><font color="Olive">b<sub>1</sub></font>,<font color="Olive">b<sub>2</sub></font>,<font color="Olive">b<sub>3</sub></font></span><a href="domain_1.html#K4">]</a></span> <a href="hidden.html#R2">in</a> the <a href="collsp.html#U1" target="_self">Collinearity</a> of <font color="Maroon">c<sub>9</sub></font> ) &amp; ( <font color="Olive">b<sub>1</sub></font> <a href="hidden.html#NR2" target="_self">&lt;&gt;</a> <font color="Olive">b<sub>2</sub></font> &amp; <span class="p1"><a href="domain_1.html#K4">[</a><span class="default"><font color="Olive">b<sub>1</sub></font>,<font color="Olive">b<sub>2</sub></font>,<font color="Olive">b<sub>4</sub></font></span><a href="domain_1.html#K4">]</a></span> <a href="hidden.html#R2">in</a> the <a href="collsp.html#U1" target="_self">Collinearity</a> of <font color="Maroon">c<sub>9</sub></font> &amp; <span class="p1"><a href="domain_1.html#K4">[</a><span class="default"><font color="Olive">b<sub>1</sub></font>,<font color="Olive">b<sub>2</sub></font>,<font color="Olive">b<sub>5</sub></font></span><a href="domain_1.html#K4">]</a></span> <a href="hidden.html#R2">in</a> the <a href="collsp.html#U1" target="_self">Collinearity</a> of <font color="Maroon">c<sub>9</sub></font> &amp; <span class="p1"><a href="domain_1.html#K4">[</a><span class="default"><font color="Olive">b<sub>1</sub></font>,<font color="Olive">b<sub>2</sub></font>,<font color="Olive">b<sub>6</sub></font></span><a href="domain_1.html#K4">]</a></span> <a href="hidden.html#R2">in</a> the <a href="collsp.html#U1" target="_self">Collinearity</a> of <font color="Maroon">c<sub>9</sub></font> implies <span class="p1"><a href="domain_1.html#K4">[</a><span class="default"><font color="Olive">b<sub>4</sub></font>,<font color="Olive">b<sub>5</sub></font>,<font color="Olive">b<sub>6</sub></font></span><a href="domain_1.html#K4">]</a></span> <a href="hidden.html#R2">in</a> the <a href="collsp.html#U1" target="_self">Collinearity</a> of <font color="Maroon">c<sub>9</sub></font> ) )
 
<b>by </b><i><a class="txt" href="collsp.html#E33"><i><font color="Green">Lemma18</font></i></a>, <a class="txt" href="collsp.html#E34"><i><font color="Green">Lemma19</font></i></a></i>;<br/>
<b>hence </b><a NAME="E2:25"/>
<font color="Maroon">c<sub>9</sub></font> is   <a href="collsp.html#NM2">CollSp</a>
 <b>by </b><i><a class="ref" href="collsp.html#D3" target="_self">Def3</a>, <a class="ref" href="collsp.html#D4" target="_self">Def4</a></i>;<br/>


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