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<b>let </b><font color="Maroon">c<sub>7</sub></font> be   <a href="analmetr.html#NM1">OrtAfSp</a>;<br/><b>let </b><font color="Maroon">c<sub>8</sub></font>, <font color="Maroon">c<sub>9</sub></font>, <font color="Maroon">c<sub>10</sub></font>, <font color="Maroon">c<sub>11</sub></font> be   <a href="struct_0.html#NM2">Subset</a> of <font color="Maroon">c<sub>7</sub></font>;<br/><b>let </b><font color="Maroon">c<sub>12</sub></font>, <font color="Maroon">c<sub>13</sub></font>, <font color="Maroon">c<sub>14</sub></font> be   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">c<sub>7</sub></font>;<br/>















<b>assume </b><b>that </b><br/><a NAME="E1:90"/><i><font color="Green">E68</font></i>: 
( <font color="Maroon">c<sub>12</sub></font> <a href="hidden.html#R2">in</a> <font color="Maroon">c<sub>8</sub></font> &amp; <font color="Maroon">c<sub>12</sub></font> <a href="hidden.html#R2">in</a> <font color="Maroon">c<sub>9</sub></font> &amp; <font color="Maroon">c<sub>13</sub></font> <a href="hidden.html#R2">in</a> <font color="Maroon">c<sub>8</sub></font> &amp; <font color="Maroon">c<sub>14</sub></font> <a href="hidden.html#R2">in</a> <font color="Maroon">c<sub>9</sub></font> )
 <b>and </b><br/><a NAME="E2:90"/><i><font color="Green">E69</font></i>: 
<font color="Maroon">c<sub>13</sub></font> <a href="hidden.html#NR2" target="_self">&lt;&gt;</a> <font color="Maroon">c<sub>14</sub></font>
 <b>and </b><br/><a NAME="E3:90"/><i><font color="Green">E70</font></i>: 
( <font color="Maroon">c<sub>13</sub></font> <a href="hidden.html#R2">in</a> <font color="Maroon">c<sub>10</sub></font> &amp; <font color="Maroon">c<sub>14</sub></font> <a href="hidden.html#R2">in</a> <font color="Maroon">c<sub>10</sub></font> )
 <b>and </b><br/><a NAME="E4:90"/><i><font color="Green">E71</font></i>: 
( <font color="Maroon">c<sub>11</sub></font> <a href="analmetr.html#R10" target="_self">_|_</a> <font color="Maroon">c<sub>8</sub></font> &amp; <font color="Maroon">c<sub>11</sub></font> <a href="analmetr.html#R10" target="_self">_|_</a> <font color="Maroon">c<sub>9</sub></font> )
 <b>and </b><br/><a NAME="E5:90"/><i><font color="Green">E72</font></i>: 
<font color="Maroon">c<sub>10</sub></font> is <a href="analmetr.html#V4" target="_self">being_line</a>
 ;<br/>

<a NAME="E6:90"/><i><font color="Green">E73</font></i>: 
<font color="Maroon">c<sub>10</sub></font> <a href="hidden.html#R1">=</a>  <a href="analmetr.html#K4" target="_self">Line</a> <font color="Maroon">c<sub>13</sub></font>,<font color="Maroon">c<sub>14</sub></font>
 
<b>by </b><i><a class="txt" href="analmetr.html#E2:90"><i><font color="Green">E69</font></i></a>, <a class="txt" href="analmetr.html#E3:90"><i><font color="Green">E70</font></i></a>, <a class="txt" href="analmetr.html#E5:90"><i><font color="Green">E72</font></i></a>, <a class="ref" href="analmetr.html#T76" target="_self">Th76</a></i>;<br/>
<a NAME="E7:90"/>
<font color="Maroon">c<sub>11</sub></font> is <a href="analmetr.html#V4" target="_self">being_line</a>
 
<b>by </b><i><a class="txt" href="analmetr.html#E4:90"><i><font color="Green">E71</font></i></a>, <a class="ref" href="analmetr.html#T62" target="_self">Th62</a></i>;<br/>
<b>then consider </b><font color="Maroon">c<sub>15</sub></font>, <font color="Maroon">c<sub>16</sub></font> being   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">c<sub>7</sub></font><b> such that </b><br/><a NAME="E9:90"/><i><font color="Green">E74</font></i>: 
( <font color="Maroon">c<sub>15</sub></font> <a href="hidden.html#NR2" target="_self">&lt;&gt;</a> <font color="Maroon">c<sub>16</sub></font> &amp; <font color="Maroon">c<sub>11</sub></font> <a href="hidden.html#R1">=</a>  <a href="analmetr.html#K4" target="_self">Line</a> <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>16</sub></font> )
 <b>by </b><i><a class="ref" href="analmetr.html#D13" target="_self">Def13</a></i>;<br/>
<b>reconsider </b><font color="Maroon">c<sub>17</sub></font> = <font color="Maroon">c<sub>15</sub></font>, <font color="Maroon">c<sub>18</sub></font> = <font color="Maroon">c<sub>16</sub></font> as   <a href="struct_0.html#NM1">Element</a> of <span class="p1">(<span class="default"><a href="analmetr.html#K3" target="_self">Af</a> <font color="Maroon">c<sub>7</sub></font></span>)</span> ;<br/>
<a NAME="E11:90"/>
 <a href="analmetr.html#K4" target="_self">Line</a> <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>16</sub></font> <a href="hidden.html#R1">=</a>  <a href="aff_1.html#K2">Line</a> <font color="Maroon">c<sub>17</sub></font>,<font color="Maroon">c<sub>18</sub></font>
 
<b>by </b><i><a class="ref" href="analmetr.html#T56" target="_self">Th56</a></i>;<br/>
<a NAME="E12:90"/><b>then </b>
( <font color="Maroon">c<sub>15</sub></font> <a href="hidden.html#R2">in</a> <font color="Maroon">c<sub>11</sub></font> &amp; <font color="Maroon">c<sub>16</sub></font> <a href="hidden.html#R2">in</a> <font color="Maroon">c<sub>11</sub></font> )
 
<b>by </b><i><a class="txt" href="analmetr.html#E9:90"><i><font color="Green">E74</font></i></a>, <a class="ref" href="aff_1.html#T26">AFF_1:26</a></i>;<br/>
<a NAME="E13:90"/><b>then </b>
( <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>16</sub></font> <a href="analmetr.html#R4" target="_self">_|_</a> <font color="Maroon">c<sub>12</sub></font>,<font color="Maroon">c<sub>13</sub></font> &amp; <font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>16</sub></font> <a href="analmetr.html#R4" target="_self">_|_</a> <font color="Maroon">c<sub>12</sub></font>,<font color="Maroon">c<sub>14</sub></font> )
 
<b>by </b><i><a class="txt" href="analmetr.html#E1:90"><i><font color="Green">E68</font></i></a>, <a class="txt" href="analmetr.html#E4:90"><i><font color="Green">E71</font></i></a>, <a class="ref" href="analmetr.html#T78" target="_self">Th78</a></i>;<br/>
<a NAME="E14:90"/><b>then </b>
<font color="Maroon">c<sub>15</sub></font>,<font color="Maroon">c<sub>16</sub></font> <a href="analmetr.html#R4" target="_self">_|_</a> <font color="Maroon">c<sub>13</sub></font>,<font color="Maroon">c<sub>14</sub></font>
 
<b>by </b><i><a class="ref" href="analmetr.html#D9" target="_self">Def9</a></i>;<br/>
<b>hence </b><a NAME="E15:90"/>
<font color="Maroon">c<sub>11</sub></font> <a href="analmetr.html#R10" target="_self">_|_</a> <font color="Maroon">c<sub>10</sub></font>
 <b>by </b><i><a class="txt" href="analmetr.html#E2:90"><i><font color="Green">E69</font></i></a>, <a class="txt" href="analmetr.html#E6:90"><i><font color="Green">E73</font></i></a>, <a class="txt" href="analmetr.html#E9:90"><i><font color="Green">E74</font></i></a>, <a class="ref" href="analmetr.html#T63" target="_self">Th63</a></i>;<br/>


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