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<b>let </b><font color="Maroon">V</font> be  <a href="anproj_2.html#V1" target="_self">up-3-dimensional</a> <a href="rlvect_1.html#NM2">RealLinearSpace</a>;<br/>

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for <font color="Olive">p1</font>, <font color="Olive">r2</font>, <font color="Olive">q</font>, <font color="Olive">r1</font>, <font color="Olive">q1</font>, <font color="Olive">p</font>, <font color="Olive">r</font> being  <a href="struct_0.html#NM1">Element</a> of <span class="p1">(<span class="default"><a href="anproj_1.html#K6">ProjectiveSpace</a> <font color="Maroon">V</font></span>)</span>  st <font color="Olive">p1</font>,<font color="Olive">r2</font>,<font color="Olive">q</font> <a href="collsp.html#R1">is_collinear</a>  &amp; <font color="Olive">r1</font>,<font color="Olive">q1</font>,<font color="Olive">q</font> <a href="collsp.html#R1">is_collinear</a>  &amp; <font color="Olive">p1</font>,<font color="Olive">r1</font>,<font color="Olive">p</font> <a href="collsp.html#R1">is_collinear</a>  &amp; <font color="Olive">r2</font>,<font color="Olive">q1</font>,<font color="Olive">p</font> <a href="collsp.html#R1">is_collinear</a>  &amp; <font color="Olive">p1</font>,<font color="Olive">q1</font>,<font color="Olive">r</font> <a href="collsp.html#R1">is_collinear</a>  &amp; <font color="Olive">r2</font>,<font color="Olive">r1</font>,<font color="Olive">r</font> <a href="collsp.html#R1">is_collinear</a>  &amp; <font color="Olive">p</font>,<font color="Olive">q</font>,<font color="Olive">r</font> <a href="collsp.html#R1">is_collinear</a>  &amp; not <font color="Olive">p1</font>,<font color="Olive">r2</font>,<font color="Olive">q1</font> <a href="collsp.html#R1">is_collinear</a>  &amp; not <font color="Olive">p1</font>,<font color="Olive">r2</font>,<font color="Olive">r1</font> <a href="collsp.html#R1">is_collinear</a>  &amp; not <font color="Olive">p1</font>,<font color="Olive">r1</font>,<font color="Olive">q1</font> <a href="collsp.html#R1">is_collinear</a>  holds <br/><font color="Olive">r2</font>,<font color="Olive">r1</font>,<font color="Olive">q1</font> <a href="collsp.html#R1">is_collinear</a> 
 
<b>by </b><i/>;<br/>
<b>hence </b><a NAME="E2:86"/>
 <a href="anproj_1.html#K6">ProjectiveSpace</a> <font color="Maroon">V</font> is <a href="anproj_2.html#V4" target="_self">Fanoian</a>
 <b>by </b><i/>;<br/>


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