<?xml version="1.0"?>
<div class="add">

<b>let </b><font color="Maroon" title="c1">V</font> be   <a href="rlvect_1.html#NM2" title="RLVECT_1:NM.2">RealLinearSpace</a>;<br/><b>let </b><font color="Maroon" title="c2">w</font>, <font color="Maroon" title="c3">y</font> be   <a href="rlvect_1.html#NM1" title="RLVECT_1:NM.1">VECTOR</a> of <font color="Maroon" title="c1">V</font>;<br/><b>let </b><font color="Maroon" title="c4">a</font>, <font color="Maroon" title="c5">b</font>, <font color="Maroon" title="c6">a1</font>, <font color="Maroon" title="c7">b1</font>, <font color="Maroon" title="c8">c1</font>, <font color="Maroon" title="c9">d1</font> be   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <span class="p1">(<span class="default"><a href="geomtrap.html#K7" title="GEOMTRAP:func.7">DTrSpace</a> <font color="Maroon" title="c1">V</font>,<font color="Maroon" title="c2">w</font>,<font color="Maroon" title="c3">y</font></span>)</span>;<br/>

















<b>assume </b><a NAME="E1:79"/><i><font color="Green" title="E69">A1</font></i>: 
(  <a href="analmetr.html#R1" title="ANALMETR:pred.1">Gen</a> <font color="Maroon" title="c2">w</font>,<font color="Maroon" title="c3">y</font> &amp; <font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c5">b</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c6">a1</font>,<font color="Maroon" title="c7">b1</font> &amp; <font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c5">b</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c8">c1</font>,<font color="Maroon" title="c9">d1</font> &amp; <font color="Maroon" title="c4">a</font> <a href="hidden.html#NR2" title="HIDDEN:NR.2">&lt;&gt;</a> <font color="Maroon" title="c5">b</font> )
 ;<br/>

<b>reconsider </b><font color="Maroon" title="c10">u</font> = <font color="Maroon" title="c4">a</font>, <font color="Maroon" title="c11">v</font> = <font color="Maroon" title="c5">b</font>, <font color="Maroon" title="c12">u1</font> = <font color="Maroon" title="c6">a1</font>, <font color="Maroon" title="c13">v1</font> = <font color="Maroon" title="c7">b1</font>, <font color="Maroon" title="c14">u2</font> = <font color="Maroon" title="c8">c1</font>, <font color="Maroon" title="c15">v2</font> = <font color="Maroon" title="c9">d1</font> as   <a href="rlvect_1.html#NM1" title="RLVECT_1:NM.1">VECTOR</a> of <font color="Maroon" title="c1">V</font> ;<br/>
<a NAME="E3:79"/>
( <font color="Maroon" title="c10">u</font>,<font color="Maroon" title="c11">v</font>,<font color="Maroon" title="c12">u1</font>,<font color="Maroon" title="c13">v1</font> <a href="geomtrap.html#R2" title="GEOMTRAP:pred.2">are_DTr_wrt</a> <font color="Maroon" title="c2">w</font>,<font color="Maroon" title="c3">y</font> &amp; <font color="Maroon" title="c10">u</font>,<font color="Maroon" title="c11">v</font>,<font color="Maroon" title="c14">u2</font>,<font color="Maroon" title="c15">v2</font> <a href="geomtrap.html#R2" title="GEOMTRAP:pred.2">are_DTr_wrt</a> <font color="Maroon" title="c2">w</font>,<font color="Maroon" title="c3">y</font> &amp; <font color="Maroon" title="c10">u</font> <a href="hidden.html#NR2" title="HIDDEN:NR.2">&lt;&gt;</a> <font color="Maroon" title="c11">v</font> )
 
<b>by </b><i><a class="txt" href="geomtrap.html#E1:79"><i><font color="Green" title="E69">A1</font></i></a>, <a class="ref" href="geomtrap.html#T47" target="_self" title="GEOMTRAP:th.47">Th47</a></i>;<br/>
<a NAME="E4:79"/><b>then </b>
<font color="Maroon" title="c12">u1</font>,<font color="Maroon" title="c13">v1</font>,<font color="Maroon" title="c14">u2</font>,<font color="Maroon" title="c15">v2</font> <a href="geomtrap.html#R2" title="GEOMTRAP:pred.2">are_DTr_wrt</a> <font color="Maroon" title="c2">w</font>,<font color="Maroon" title="c3">y</font>
 
<b>by </b><i><a class="txt" href="geomtrap.html#E1:79"><i><font color="Green" title="E69">A1</font></i></a>, <a class="ref" href="geomtrap.html#T21" target="_self" title="GEOMTRAP:th.21">Th21</a></i>;<br/>
<b>hence </b><a NAME="E5:79"/>
<font color="Maroon" title="c6">a1</font>,<font color="Maroon" title="c7">b1</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c8">c1</font>,<font color="Maroon" title="c9">d1</font>
 <b>by </b><i><a class="txt" href="geomtrap.html#E1:79"><i><font color="Green" title="E69">A1</font></i></a>, <a class="ref" href="geomtrap.html#T47" target="_self" title="GEOMTRAP:th.47">Th47</a></i>;<br/>


</div>
