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

<b>let </b><font color="Maroon">K</font> be   <a href="vectsp_1.html#NM2">Field</a>;<br/><b>let </b><font color="Maroon">x</font> be   <a href="struct_0.html#NM7">FinSequence</a> of <font color="Maroon">K</font>, <font color="Maroon">y</font> be   <a href="struct_0.html#NM7">FinSequence</a> of <font color="Maroon">K</font>, <font color="Maroon">z</font> be   <a href="struct_0.html#NM7">FinSequence</a> of <font color="Maroon">K</font>;<br/>



<b>assume </b><a NAME="E1:54"/><i><font color="Green">E29</font></i>: 
(  <a href="finseq_1.html#K3">len</a> <font color="Maroon">x</font> <a href="hidden.html#R1">=</a>  <a href="finseq_1.html#K3">len</a> <font color="Maroon">y</font> &amp;  <a href="finseq_1.html#K3">len</a> <font color="Maroon">y</font> <a href="hidden.html#R1">=</a>  <a href="finseq_1.html#K3">len</a> <font color="Maroon">z</font> )
 ;<br/>

<b>then reconsider </b><font color="Maroon">x2</font> = <font color="Maroon">x</font>, <font color="Maroon">y2</font> = <font color="Maroon">y</font>, <font color="Maroon">z2</font> = <font color="Maroon">z</font> as    <a href="subset_1.html#M1">Element</a> of <span class="p1">(<span class="default"><a href="finseq_1.html#K3">len</a> <font color="Maroon">x</font></span>)</span> <a href="finseq_2.html#K4">-tuples_on</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">K</font> <b>by </b><i><a class="ref" href="finseq_2.html#T110">FINSEQ_2:110</a></i>;<br/>
<a NAME="E3:54"/><i><font color="Green">E30</font></i>: 
 <a href="finseq_1.html#K4">dom</a> <font color="Maroon">y</font> <a href="hidden.html#R1">=</a>  <a href="finseq_1.html#K2">Seg</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K3">len</a> <font color="Maroon">x</font></span>)</span>
 
<b>by </b><i>, <a class="ref" href="finseq_1.html#D3">FINSEQ_1:def 3</a></i>;<br/>
<a NAME="E4:54"/><i><font color="Green">E31</font></i>: 
 <a href="finseq_1.html#K4">dom</a> <font color="Maroon">z</font> <a href="hidden.html#R1">=</a>  <a href="finseq_1.html#K2">Seg</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K3">len</a> <font color="Maroon">x</font></span>)</span>
 
<b>by </b><i>, <a class="ref" href="finseq_1.html#D3">FINSEQ_1:def 3</a></i>;<br/>
<a NAME="E5:54"/><i><font color="Green">E32</font></i>: 
 <a href="finseq_1.html#K4">dom</a> <font color="Maroon">x</font> <a href="hidden.html#R1">=</a>  <a href="finseq_1.html#K2">Seg</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K3">len</a> <font color="Maroon">x</font></span>)</span>
 
<b>by </b><i><a class="ref" href="finseq_1.html#D3">FINSEQ_1:def 3</a></i>;<br/>
<i><font color="Green">E33</font></i>:  <a href="finseq_1.html#K4">dom</a> <span class="p1">(<span class="default"><font color="Maroon">x</font> <a href="fvsum_1.html#K3">+</a> <font color="Maroon">y</font></span>)</span> = 
 <a href="finseq_1.html#K2">Seg</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K3">len</a> <span class="p2">(<span class="default"><font color="Maroon">x2</font> <a href="fvsum_1.html#K4">+</a> <font color="Maroon">y2</font></span>)</span></span>)</span>
<b>by </b><i><a class="ref" href="finseq_1.html#D3">FINSEQ_1:def 3</a></i>
<br/>.= 
 <a href="finseq_1.html#K2">Seg</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K3">len</a> <font color="Maroon">x</font></span>)</span>
<b>by </b><i><a class="ref" href="finseq_2.html#T109">FINSEQ_2:109</a></i>
<br/>.= 
 <a href="finseq_1.html#K4">dom</a> <font color="Maroon">z</font>
<b>by </b><i>, <a class="ref" href="finseq_1.html#D3">FINSEQ_1:def 3</a></i>
;<br/>
<i><font color="Green">E34</font></i>:  <a href="finseq_1.html#K4">dom</a> <span class="p1">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <span class="p2">(<span class="default"><font color="Maroon">x</font> <a href="fvsum_1.html#K3">+</a> <font color="Maroon">y</font></span>)</span>,<font color="Maroon">z</font></span>)</span> = 
 <a href="finseq_1.html#K2">Seg</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K3">len</a> <span class="p2">(<span class="default"><a href="fvsum_1.html#K12">mlt</a> <span class="p3">(<span class="default"><font color="Maroon">x2</font> <a href="fvsum_1.html#K4">+</a> <font color="Maroon">y2</font></span>)</span>,<font color="Maroon">z2</font></span>)</span></span>)</span>
<b>by </b><i><a class="ref" href="finseq_1.html#D3">FINSEQ_1:def 3</a></i>
<br/>.= 
 <a href="finseq_1.html#K2">Seg</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K3">len</a> <font color="Maroon">x</font></span>)</span>
<b>by </b><i><a class="ref" href="finseq_2.html#T109">FINSEQ_2:109</a></i>
<br/>.= 
 <a href="finseq_1.html#K2">Seg</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K3">len</a> <span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="fvsum_1.html#K12">mlt</a> <font color="Maroon">x2</font>,<font color="Maroon">z2</font></span>)</span> <a href="fvsum_1.html#K4">+</a> <span class="p3">(<span class="default"><a href="fvsum_1.html#K12">mlt</a> <font color="Maroon">y2</font>,<font color="Maroon">z2</font></span>)</span></span>)</span></span>)</span>
<b>by </b><i><a class="ref" href="finseq_2.html#T109">FINSEQ_2:109</a></i>
<br/>.= 
 <a href="finseq_1.html#K4">dom</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><a href="fvsum_1.html#K12">mlt</a> <font color="Maroon">x2</font>,<font color="Maroon">z2</font></span>)</span> <a href="fvsum_1.html#K4">+</a> <span class="p2">(<span class="default"><a href="fvsum_1.html#K12">mlt</a> <font color="Maroon">y2</font>,<font color="Maroon">z2</font></span>)</span></span>)</span>
<b>by </b><i><a class="ref" href="finseq_1.html#D3">FINSEQ_1:def 3</a></i>
;<br/>
<i><font color="Green">E39</font></i>:  <a href="finseq_1.html#K4">dom</a> <span class="p1">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <font color="Maroon">x</font>,<font color="Maroon">z</font></span>)</span> = 
 <a href="finseq_1.html#K2">Seg</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K3">len</a> <span class="p2">(<span class="default"><a href="fvsum_1.html#K12">mlt</a> <font color="Maroon">x2</font>,<font color="Maroon">z2</font></span>)</span></span>)</span>
<b>by </b><i><a class="ref" href="finseq_1.html#D3">FINSEQ_1:def 3</a></i>
<br/>.= 
 <a href="finseq_1.html#K2">Seg</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K3">len</a> <font color="Maroon">x</font></span>)</span>
<b>by </b><i><a class="ref" href="finseq_2.html#T109">FINSEQ_2:109</a></i>
;<br/>
<b>then </b><i><font color="Green">E53</font></i>:  <a href="finseq_1.html#K4">dom</a> <span class="p1">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <font color="Maroon">x</font>,<font color="Maroon">z</font></span>)</span> = 
 <a href="finseq_1.html#K2">Seg</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K3">len</a> <span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="fvsum_1.html#K12">mlt</a> <font color="Maroon">x2</font>,<font color="Maroon">z2</font></span>)</span> <a href="fvsum_1.html#K4">+</a> <span class="p3">(<span class="default"><a href="fvsum_1.html#K12">mlt</a> <font color="Maroon">y2</font>,<font color="Maroon">z2</font></span>)</span></span>)</span></span>)</span>
<b>by </b><i><a class="ref" href="finseq_2.html#T109">FINSEQ_2:109</a></i>
<br/>.= 
 <a href="finseq_1.html#K4">dom</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><a href="fvsum_1.html#K12">mlt</a> <font color="Maroon">x2</font>,<font color="Maroon">z2</font></span>)</span> <a href="fvsum_1.html#K4">+</a> <span class="p2">(<span class="default"><a href="fvsum_1.html#K12">mlt</a> <font color="Maroon">y2</font>,<font color="Maroon">z2</font></span>)</span></span>)</span>
<b>by </b><i><a class="ref" href="finseq_1.html#D3">FINSEQ_1:def 3</a></i>
;<br/>
<i><font color="Green">E54</font></i>:  <a href="finseq_1.html#K4">dom</a> <span class="p1">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <font color="Maroon">y</font>,<font color="Maroon">z</font></span>)</span> = 
 <a href="finseq_1.html#K2">Seg</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K3">len</a> <span class="p2">(<span class="default"><a href="fvsum_1.html#K12">mlt</a> <font color="Maroon">y2</font>,<font color="Maroon">z2</font></span>)</span></span>)</span>
<b>by </b><i><a class="ref" href="finseq_1.html#D3">FINSEQ_1:def 3</a></i>
<br/>.= 
 <a href="finseq_1.html#K2">Seg</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K3">len</a> <font color="Maroon">x</font></span>)</span>
<b>by </b><i><a class="ref" href="finseq_2.html#T109">FINSEQ_2:109</a></i>
;<br/>
<b>then </b><i><font color="Green">E75</font></i>:  <a href="finseq_1.html#K4">dom</a> <span class="p1">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <font color="Maroon">y</font>,<font color="Maroon">z</font></span>)</span> = 
 <a href="finseq_1.html#K2">Seg</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K3">len</a> <span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="fvsum_1.html#K12">mlt</a> <font color="Maroon">x2</font>,<font color="Maroon">z2</font></span>)</span> <a href="fvsum_1.html#K4">+</a> <span class="p3">(<span class="default"><a href="fvsum_1.html#K12">mlt</a> <font color="Maroon">y2</font>,<font color="Maroon">z2</font></span>)</span></span>)</span></span>)</span>
<b>by </b><i><a class="ref" href="finseq_2.html#T109">FINSEQ_2:109</a></i>
<br/>.= 
 <a href="finseq_1.html#K4">dom</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><a href="fvsum_1.html#K12">mlt</a> <font color="Maroon">x2</font>,<font color="Maroon">z2</font></span>)</span> <a href="fvsum_1.html#K4">+</a> <span class="p2">(<span class="default"><a href="fvsum_1.html#K12">mlt</a> <font color="Maroon">y2</font>,<font color="Maroon">z2</font></span>)</span></span>)</span>
<b>by </b><i><a class="ref" href="finseq_1.html#D3">FINSEQ_1:def 3</a></i>
;<br/>
<a NAME="E12:54"/>
for <font color="Olive">i</font> being   <a href="subset_1.html#M1">Element</a> of  <a href="numbers.html#K5">NAT</a>   st <font color="Olive">i</font> <a href="hidden.html#R2">in</a>  <a href="finseq_1.html#K4">dom</a> <span class="p1">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <span class="p2">(<span class="default"><font color="Maroon">x</font> <a href="fvsum_1.html#K3">+</a> <font color="Maroon">y</font></span>)</span>,<font color="Maroon">z</font></span>)</span> holds <br/><span class="p1">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <span class="p2">(<span class="default"><font color="Maroon">x</font> <a href="fvsum_1.html#K3">+</a> <font color="Maroon">y</font></span>)</span>,<font color="Maroon">z</font></span>)</span> <a href="funct_1.html#K1">.</a> <font color="Olive">i</font> <a href="hidden.html#R1">=</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <font color="Maroon">x</font>,<font color="Maroon">z</font></span>)</span> <a href="fvsum_1.html#K3">+</a> <span class="p2">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <font color="Maroon">y</font>,<font color="Maroon">z</font></span>)</span></span>)</span> <a href="funct_1.html#K1">.</a> <font color="Olive">i</font>
 
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="54_7"><b>proof </b></a><div class="add">

<b>let </b><font color="Maroon">i</font> be    <a href="subset_1.html#M1">Element</a> of  <a href="numbers.html#K5">NAT</a> ;<br/>

<b>assume </b><a NAME="E1:54_7"/><i><font color="Green">E76</font></i>: 
<font color="Maroon">i</font> <a href="hidden.html#R2">in</a>  <a href="finseq_1.html#K4">dom</a> <span class="p1">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <span class="p2">(<span class="default"><font color="Maroon">x</font> <a href="fvsum_1.html#K3">+</a> <font color="Maroon">y</font></span>)</span>,<font color="Maroon">z</font></span>)</span>
 ;<br/>

<a NAME="E2:54_7"/>
 <a href="finseq_1.html#K3">len</a> <span class="p1">(<span class="default"><font color="Maroon">x2</font> <a href="fvsum_1.html#K4">+</a> <font color="Maroon">y2</font></span>)</span> <a href="hidden.html#R1">=</a>  <a href="finseq_1.html#K3">len</a> <font color="Maroon">x</font>
 
<b>by </b><i><a class="ref" href="finseq_2.html#T109">FINSEQ_2:109</a></i>;<br/>
<a NAME="E3:54_7"/><b>then </b><i><font color="Green">E77</font></i>: 
 <a href="finseq_1.html#K4">dom</a> <span class="p1">(<span class="default"><font color="Maroon">x2</font> <a href="fvsum_1.html#K4">+</a> <font color="Maroon">y2</font></span>)</span> <a href="hidden.html#R1">=</a>  <a href="finseq_1.html#K2">Seg</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K3">len</a> <font color="Maroon">x</font></span>)</span>
 
<b>by </b><i><a class="ref" href="finseq_1.html#D3">FINSEQ_1:def 3</a></i>;<br/>
<a NAME="E4:54_7"/><i><font color="Green">E78</font></i>: 
 <a href="relat_1.html#K2">rng</a> <font color="Maroon">x</font> <a href="tarski.html#R1">c=</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">K</font>
 
<b>by </b><i><a class="ref" href="finseq_1.html#D4">FINSEQ_1:def 4</a></i>;<br/>
<a NAME="E5:54_7"/><i><font color="Green">E79</font></i>: 
 <a href="relat_1.html#K2">rng</a> <font color="Maroon">y</font> <a href="tarski.html#R1">c=</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">K</font>
 
<b>by </b><i><a class="ref" href="finseq_1.html#D4">FINSEQ_1:def 4</a></i>;<br/>
<a NAME="E6:54_7"/><i><font color="Green">E80</font></i>: 
 <a href="relat_1.html#K2">rng</a> <font color="Maroon">z</font> <a href="tarski.html#R1">c=</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">K</font>
 
<b>by </b><i><a class="ref" href="finseq_1.html#D4">FINSEQ_1:def 4</a></i>;<br/>
<a NAME="E7:54_7"/><i><font color="Green">E81</font></i>: 
 <a href="relat_1.html#K2">rng</a> <span class="p1">(<span class="default"><font color="Maroon">x</font> <a href="fvsum_1.html#K3">+</a> <font color="Maroon">y</font></span>)</span> <a href="tarski.html#R1">c=</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">K</font>
 
<b>by </b><i><a class="ref" href="finseq_1.html#D4">FINSEQ_1:def 4</a></i>;<br/>
<a NAME="E8:54_7"/><i><font color="Green">E82</font></i>: 
 <a href="fvsum_1.html#K11">mlt</a> <span class="p1">(<span class="default"><font color="Maroon">x</font> <a href="fvsum_1.html#K3">+</a> <font color="Maroon">y</font></span>)</span>,<font color="Maroon">z</font> <a href="hidden.html#R1">=</a> the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="finseqop.html#K1">.:</a> <span class="p1">(<span class="default"><font color="Maroon">x</font> <a href="fvsum_1.html#K3">+</a> <font color="Maroon">y</font></span>)</span>,<font color="Maroon">z</font>
 
<b>by </b><i><a class="ref" href="fvsum_1.html#D7">FVSUM_1:def 7</a></i>;<br/>
<a NAME="E9:54_7"/>
 <a href="relat_1.html#K1">dom</a> the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="zfmisc_1.html#K2">[:</a><span class="default">the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">K</font>,the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">K</font></span><a href="zfmisc_1.html#K2">:]</a></span>
 
<b>by </b><i><a class="ref" href="funct_2.html#D1">FUNCT_2:def 1</a></i>;<br/>
<a NAME="E10:54_7"/><b>then </b>
<span class="p1"><a href="zfmisc_1.html#K2">[:</a><span class="default"><span class="p2">(<span class="default"><a href="relat_1.html#K2">rng</a> <span class="p3">(<span class="default"><font color="Maroon">x</font> <a href="fvsum_1.html#K3">+</a> <font color="Maroon">y</font></span>)</span></span>)</span>,<span class="p2">(<span class="default"><a href="relat_1.html#K2">rng</a> <font color="Maroon">z</font></span>)</span></span><a href="zfmisc_1.html#K2">:]</a></span> <a href="tarski.html#R1">c=</a>  <a href="relat_1.html#K1">dom</a> the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font>
 
<b>by </b><i><a class="ref" href="matrix_4.html#T7" target="_self">Th7</a>, <a class="txt" href="matrix_4.html#E8:54"><i><font color="Green">E39</font></i></a>, <a class="ref" href="zfmisc_1.html#T119">ZFMISC_1:119</a></i>;<br/>
<a NAME="E11:54_7"/><b>then </b><i><font color="Green">E83</font></i>: 
 <a href="finseq_1.html#K4">dom</a> <span class="p1">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <span class="p2">(<span class="default"><font color="Maroon">x</font> <a href="fvsum_1.html#K3">+</a> <font color="Maroon">y</font></span>)</span>,<font color="Maroon">z</font></span>)</span> <a href="hidden.html#R1">=</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K4">dom</a> <span class="p2">(<span class="default"><font color="Maroon">x</font> <a href="fvsum_1.html#K3">+</a> <font color="Maroon">y</font></span>)</span></span>)</span> <a href="subset_1.html#K9">/\</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K4">dom</a> <font color="Maroon">z</font></span>)</span>
 
<b>by </b><i><a class="ref" href="matrix_4.html#T8" target="_self">Th8</a>, <a class="ref" href="funcop_1.html#T84">FUNCOP_1:84</a></i>;<br/>
<a NAME="E12:54_7"/><b>then </b><i><font color="Green">E84</font></i>: 
<font color="Maroon">i</font> <a href="hidden.html#R2">in</a>  <a href="finseq_1.html#K2">Seg</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K3">len</a> <font color="Maroon">x</font></span>)</span>
 
<b>by </b><i><a class="txt" href="matrix_4.html#E7:54"><i><font color="Green">E34</font></i></a>, <a class="ref" href="matrix_4.html#T2" target="_self">Th2</a>, <a class="ref" href="xboole_0.html#D3">XBOOLE_0:def 3</a></i>;<br/>
<a NAME="E13:54_7"/><b>then </b><i><font color="Green">E85</font></i>: 
<font color="Maroon">i</font> <a href="hidden.html#R2">in</a>  <a href="finseq_1.html#K4">dom</a> <font color="Maroon">x</font>
 
<b>by </b><i><a class="ref" href="finseq_1.html#D3">FINSEQ_1:def 3</a></i>;<br/>
<a NAME="E14:54_7"/><b>then </b><i><font color="Green">E86</font></i>: 
<font color="Maroon">x</font> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font> <a href="hidden.html#R2">in</a>  <a href="relat_1.html#K2">rng</a> <font color="Maroon">x</font>
 
<b>by </b><i><a class="ref" href="funct_1.html#D5">FUNCT_1:def 5</a></i>;<br/>
<a NAME="E15:54_7"/>
<font color="Maroon">i</font> <a href="hidden.html#R2">in</a>  <a href="finseq_1.html#K4">dom</a> <font color="Maroon">y</font>
 
<b>by </b><i>, , <a class="ref" href="finseq_1.html#D3">FINSEQ_1:def 3</a></i>;<br/>
<a NAME="E16:54_7"/><b>then </b><i><font color="Green">E87</font></i>: 
<font color="Maroon">y</font> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font> <a href="hidden.html#R2">in</a>  <a href="relat_1.html#K2">rng</a> <font color="Maroon">y</font>
 
<b>by </b><i><a class="ref" href="funct_1.html#D5">FUNCT_1:def 5</a></i>;<br/>
<a NAME="E17:54_7"/>
<font color="Maroon">i</font> <a href="hidden.html#R2">in</a>  <a href="finseq_1.html#K4">dom</a> <font color="Maroon">z</font>
 
<b>by </b><i><a class="txt" href="matrix_4.html#E7:54"><i><font color="Green">E34</font></i></a>, <a class="ref" href="matrix_4.html#T9" target="_self">Th9</a>, <a class="ref" href="xboole_0.html#D3">XBOOLE_0:def 3</a></i>;<br/>
<a NAME="E18:54_7"/><b>then </b><i><font color="Green">E88</font></i>: 
<font color="Maroon">z</font> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font> <a href="hidden.html#R2">in</a>  <a href="relat_1.html#K2">rng</a> <font color="Maroon">z</font>
 
<b>by </b><i><a class="ref" href="funct_1.html#D5">FUNCT_1:def 5</a></i>;<br/>
<a NAME="E19:54_7"/>
<span class="p1">(<span class="default"><font color="Maroon">x</font> <a href="fvsum_1.html#K3">+</a> <font color="Maroon">y</font></span>)</span> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font> <a href="hidden.html#R2">in</a>  <a href="relat_1.html#K2">rng</a> <span class="p1">(<span class="default"><font color="Maroon">x</font> <a href="fvsum_1.html#K3">+</a> <font color="Maroon">y</font></span>)</span>
 
<b>by </b><i><a class="ref" href="matrix_4.html#T2" target="_self">Th2</a>, , <a class="ref" href="funct_1.html#D5">FUNCT_1:def 5</a></i>;<br/>
<b>then reconsider </b><font color="Maroon">a</font> = <font color="Maroon">x</font> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font>, <font color="Maroon">b</font> = <font color="Maroon">y</font> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font>, <font color="Maroon">d</font> = <span class="p1">(<span class="default"><font color="Maroon">x</font> <a href="fvsum_1.html#K3">+</a> <font color="Maroon">y</font></span>)</span> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font>, <font color="Maroon">e</font> = <font color="Maroon">z</font> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font> as   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">K</font> <b>by </b><i>, , <a class="ref" href="matrix_4.html#T7" target="_self">Th7</a>, <a class="txt" href="matrix_4.html#E8:54"><i><font color="Green">E39</font></i></a>, , <a class="ref" href="matrix_4.html#T11" target="_self">Th11</a>, <a class="ref" href="matrix_4.html#T12" target="_self">Th12</a></i>;<br/>
<a NAME="E21:54_7"/><i><font color="Green">E93</font></i>: 
 <a href="relat_1.html#K1">dom</a> <span class="p1">(<span class="default">the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="finseqop.html#K7">*</a> <font color="Maroon">x</font>,<font color="Maroon">z</font></span>)</span> <a href="hidden.html#R1">=</a>  <a href="relat_1.html#K1">dom</a> <span class="p1">(<span class="default">the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="funct_1.html#NK3" target="_self">*</a> <span class="p2"><a href="funct_3.html#K15">[:</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">z</font></span><a href="funct_3.html#K15">:]</a></span></span>)</span>
 
<b>by </b><i><a class="ref" href="finseqop.html#D4">FINSEQOP:def 4</a></i>;<br/>
<a NAME="E22:54_7"/>
 <a href="relat_1.html#K1">dom</a> the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="zfmisc_1.html#K2">[:</a><span class="default">the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">K</font>,the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">K</font></span><a href="zfmisc_1.html#K2">:]</a></span>
 
<b>by </b><i><a class="ref" href="funct_2.html#D1">FUNCT_2:def 1</a></i>;<br/>
<a NAME="E23:54_7"/><b>then </b>
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">a</font>,<font color="Maroon">e</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a>  <a href="relat_1.html#K1">dom</a> the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font>
 
<b>by </b><i><a class="ref" href="zfmisc_1.html#T106">ZFMISC_1:106</a></i>;<br/>
<a NAME="E24:54_7"/><b>then </b><i><font color="Green">E94</font></i>: 
<span class="p1"><a href="funct_3.html#K15">[:</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">z</font></span><a href="funct_3.html#K15">:]</a></span> <a href="binop_1.html#K1">.</a> <font color="Maroon">i</font>,<font color="Maroon">i</font> <a href="hidden.html#R2">in</a>  <a href="relat_1.html#K1">dom</a> the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font>
 
<b>by </b><i><a class="ref" href="matrix_4.html#T1" target="_self">Th1</a>, , <a class="txt" href="matrix_4.html#E7:54"><i><font color="Green">E34</font></i></a>, <a class="ref" href="matrix_4.html#T2" target="_self">Th2</a>, <a class="ref" href="matrix_4.html#T9" target="_self">Th9</a>, <a class="ref" href="funct_3.html#D9">FUNCT_3:def 9</a></i>;<br/>
<a NAME="E25:54_7"/>
 <a href="relat_1.html#K1">dom</a> <span class="p1"><a href="funct_3.html#K15">[:</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">z</font></span><a href="funct_3.html#K15">:]</a></span> <a href="hidden.html#R1">=</a> <span class="p1"><a href="zfmisc_1.html#K2">[:</a><span class="default"><span class="p2">(<span class="default"><a href="finseq_1.html#K4">dom</a> <font color="Maroon">x</font></span>)</span>,<span class="p2">(<span class="default"><a href="finseq_1.html#K4">dom</a> <font color="Maroon">z</font></span>)</span></span><a href="zfmisc_1.html#K2">:]</a></span>
 
<b>by </b><i><a class="ref" href="funct_3.html#D9">FUNCT_3:def 9</a></i>;<br/>
<a NAME="E26:54_7"/><b>then </b>
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">i</font>,<font color="Maroon">i</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a>  <a href="relat_1.html#K1">dom</a> <span class="p1"><a href="funct_3.html#K15">[:</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">z</font></span><a href="funct_3.html#K15">:]</a></span>
 
<b>by </b><i><a class="ref" href="matrix_4.html#T1" target="_self">Th1</a>, , <a class="txt" href="matrix_4.html#E7:54"><i><font color="Green">E34</font></i></a>, <a class="ref" href="matrix_4.html#T2" target="_self">Th2</a>, <a class="ref" href="matrix_4.html#T9" target="_self">Th9</a>, <a class="ref" href="zfmisc_1.html#T106">ZFMISC_1:106</a></i>;<br/>
<a NAME="E27:54_7"/><b>then </b><i><font color="Green">E95</font></i>: 
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">i</font>,<font color="Maroon">i</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a>  <a href="relat_1.html#K1">dom</a> <span class="p1">(<span class="default">the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="finseqop.html#K7">*</a> <font color="Maroon">x</font>,<font color="Maroon">z</font></span>)</span>
 
<b>by </b><i>, <a class="ref" href="matrix_4.html#T14" target="_self">Th14</a>, <a class="ref" href="funct_1.html#T21">FUNCT_1:21</a></i>;<br/>
<a NAME="E28:54_7"/><i><font color="Green">E96</font></i>: 
 <a href="relat_1.html#K1">dom</a> <span class="p1">(<span class="default">the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="finseqop.html#K7">*</a> <font color="Maroon">y</font>,<font color="Maroon">z</font></span>)</span> <a href="hidden.html#R1">=</a>  <a href="relat_1.html#K1">dom</a> <span class="p1">(<span class="default">the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="funct_1.html#NK3" target="_self">*</a> <span class="p2"><a href="funct_3.html#K15">[:</a><span class="default"><font color="Maroon">y</font>,<font color="Maroon">z</font></span><a href="funct_3.html#K15">:]</a></span></span>)</span>
 
<b>by </b><i><a class="ref" href="finseqop.html#D4">FINSEQOP:def 4</a></i>;<br/>
<a NAME="E29:54_7"/>
 <a href="relat_1.html#K1">dom</a> the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="zfmisc_1.html#K2">[:</a><span class="default">the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">K</font>,the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">K</font></span><a href="zfmisc_1.html#K2">:]</a></span>
 
<b>by </b><i><a class="ref" href="funct_2.html#D1">FUNCT_2:def 1</a></i>;<br/>
<a NAME="E30:54_7"/><b>then </b>
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">b</font>,<font color="Maroon">e</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a>  <a href="relat_1.html#K1">dom</a> the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font>
 
<b>by </b><i><a class="ref" href="zfmisc_1.html#T106">ZFMISC_1:106</a></i>;<br/>
<a NAME="E31:54_7"/><b>then </b><i><font color="Green">E97</font></i>: 
<span class="p1"><a href="funct_3.html#K15">[:</a><span class="default"><font color="Maroon">y</font>,<font color="Maroon">z</font></span><a href="funct_3.html#K15">:]</a></span> <a href="binop_1.html#K1">.</a> <font color="Maroon">i</font>,<font color="Maroon">i</font> <a href="hidden.html#R2">in</a>  <a href="relat_1.html#K1">dom</a> the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font>
 
<b>by </b><i>, <a class="ref" href="matrix_4.html#T1" target="_self">Th1</a>, <a class="txt" href="matrix_4.html#E7:54"><i><font color="Green">E34</font></i></a>, <a class="ref" href="matrix_4.html#T2" target="_self">Th2</a>, <a class="ref" href="matrix_4.html#T9" target="_self">Th9</a>, <a class="ref" href="funct_3.html#D9">FUNCT_3:def 9</a></i>;<br/>
<a NAME="E32:54_7"/>
 <a href="relat_1.html#K1">dom</a> <span class="p1"><a href="funct_3.html#K15">[:</a><span class="default"><font color="Maroon">y</font>,<font color="Maroon">z</font></span><a href="funct_3.html#K15">:]</a></span> <a href="hidden.html#R1">=</a> <span class="p1"><a href="zfmisc_1.html#K2">[:</a><span class="default"><span class="p2">(<span class="default"><a href="finseq_1.html#K4">dom</a> <font color="Maroon">y</font></span>)</span>,<span class="p2">(<span class="default"><a href="finseq_1.html#K4">dom</a> <font color="Maroon">z</font></span>)</span></span><a href="zfmisc_1.html#K2">:]</a></span>
 
<b>by </b><i><a class="ref" href="funct_3.html#D9">FUNCT_3:def 9</a></i>;<br/>
<a NAME="E33:54_7"/><b>then </b>
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">i</font>,<font color="Maroon">i</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a>  <a href="relat_1.html#K1">dom</a> <span class="p1"><a href="funct_3.html#K15">[:</a><span class="default"><font color="Maroon">y</font>,<font color="Maroon">z</font></span><a href="funct_3.html#K15">:]</a></span>
 
<b>by </b><i>, <a class="ref" href="matrix_4.html#T1" target="_self">Th1</a>, <a class="txt" href="matrix_4.html#E7:54"><i><font color="Green">E34</font></i></a>, <a class="ref" href="matrix_4.html#T2" target="_self">Th2</a>, <a class="ref" href="matrix_4.html#T9" target="_self">Th9</a>, <a class="ref" href="zfmisc_1.html#T106">ZFMISC_1:106</a></i>;<br/>
<a NAME="E34:54_7"/><b>then </b><i><font color="Green">E98</font></i>: 
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">i</font>,<font color="Maroon">i</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a>  <a href="relat_1.html#K1">dom</a> <span class="p1">(<span class="default">the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="finseqop.html#K7">*</a> <font color="Maroon">y</font>,<font color="Maroon">z</font></span>)</span>
 
<b>by </b><i><a class="ref" href="matrix_4.html#T16" target="_self">Th16</a>, <a class="ref" href="matrix_4.html#T18" target="_self">Th18</a>, <a class="ref" href="funct_1.html#T21">FUNCT_1:21</a></i>;<br/>
<a NAME="E35:54_7"/>
 <a href="relat_1.html#K1">dom</a> <span class="p1"><a href="funct_3.html#K15">[:</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">z</font></span><a href="funct_3.html#K15">:]</a></span> <a href="hidden.html#R1">=</a> <span class="p1"><a href="zfmisc_1.html#K2">[:</a><span class="default"><span class="p2">(<span class="default"><a href="finseq_1.html#K4">dom</a> <font color="Maroon">x</font></span>)</span>,<span class="p2">(<span class="default"><a href="finseq_1.html#K4">dom</a> <font color="Maroon">z</font></span>)</span></span><a href="zfmisc_1.html#K2">:]</a></span>
 
<b>by </b><i><a class="ref" href="funct_3.html#D9">FUNCT_3:def 9</a></i>;<br/>
<a NAME="E36:54_7"/><b>then </b><i><font color="Green">E99</font></i>: 
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">i</font>,<font color="Maroon">i</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a>  <a href="relat_1.html#K1">dom</a> <span class="p1"><a href="funct_3.html#K15">[:</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">z</font></span><a href="funct_3.html#K15">:]</a></span>
 
<b>by </b><i><a class="ref" href="matrix_4.html#T1" target="_self">Th1</a>, , <a class="txt" href="matrix_4.html#E7:54"><i><font color="Green">E34</font></i></a>, <a class="ref" href="matrix_4.html#T2" target="_self">Th2</a>, <a class="ref" href="matrix_4.html#T9" target="_self">Th9</a>, <a class="ref" href="zfmisc_1.html#T106">ZFMISC_1:106</a></i>;<br/>
<a NAME="E37:54_7"/>
 <a href="relat_1.html#K1">dom</a> <span class="p1"><a href="funct_3.html#K15">[:</a><span class="default"><font color="Maroon">y</font>,<font color="Maroon">z</font></span><a href="funct_3.html#K15">:]</a></span> <a href="hidden.html#R1">=</a> <span class="p1"><a href="zfmisc_1.html#K2">[:</a><span class="default"><span class="p2">(<span class="default"><a href="finseq_1.html#K4">dom</a> <font color="Maroon">y</font></span>)</span>,<span class="p2">(<span class="default"><a href="finseq_1.html#K4">dom</a> <font color="Maroon">z</font></span>)</span></span><a href="zfmisc_1.html#K2">:]</a></span>
 
<b>by </b><i><a class="ref" href="funct_3.html#D9">FUNCT_3:def 9</a></i>;<br/>
<a NAME="E38:54_7"/><b>then </b><i><font color="Green">E100</font></i>: 
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">i</font>,<font color="Maroon">i</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a>  <a href="relat_1.html#K1">dom</a> <span class="p1"><a href="funct_3.html#K15">[:</a><span class="default"><font color="Maroon">y</font>,<font color="Maroon">z</font></span><a href="funct_3.html#K15">:]</a></span>
 
<b>by </b><i>, <a class="ref" href="matrix_4.html#T1" target="_self">Th1</a>, <a class="txt" href="matrix_4.html#E7:54"><i><font color="Green">E34</font></i></a>, <a class="ref" href="matrix_4.html#T2" target="_self">Th2</a>, <a class="ref" href="matrix_4.html#T9" target="_self">Th9</a>, <a class="ref" href="zfmisc_1.html#T106">ZFMISC_1:106</a></i>;<br/>
 <a href="relat_1.html#K1">dom</a> <span class="p1"><a href="funct_3.html#K13">&lt;:</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">z</font></span><a href="funct_3.html#K13">:&gt;</a></span> = 
<span class="p1">(<span class="default"><a href="finseq_1.html#K4">dom</a> <font color="Maroon">x</font></span>)</span> <a href="subset_1.html#K9">/\</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K4">dom</a> <font color="Maroon">x</font></span>)</span>
<b>by </b><i><a class="ref" href="matrix_4.html#T1" target="_self">Th1</a>, , <a class="ref" href="funct_3.html#D8">FUNCT_3:def 8</a></i>
<br/>.= 
 <a href="finseq_1.html#K4">dom</a> <font color="Maroon">x</font>

;<br/>
<a NAME="E40:54_7"/><b>then </b><i><font color="Green">E101</font></i>: 
<font color="Maroon">i</font> <a href="hidden.html#R2">in</a>  <a href="relat_1.html#K1">dom</a> <span class="p1"><a href="funct_3.html#K13">&lt;:</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">z</font></span><a href="funct_3.html#K13">:&gt;</a></span>
 
<b>by </b><i>, <a class="ref" href="finseq_1.html#D3">FINSEQ_1:def 3</a></i>;<br/>
 <a href="relat_1.html#K1">dom</a> <span class="p1"><a href="funct_3.html#K13">&lt;:</a><span class="default"><font color="Maroon">y</font>,<font color="Maroon">z</font></span><a href="funct_3.html#K13">:&gt;</a></span> = 
<span class="p1">(<span class="default"><a href="finseq_1.html#K4">dom</a> <font color="Maroon">x</font></span>)</span> <a href="subset_1.html#K9">/\</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K4">dom</a> <font color="Maroon">x</font></span>)</span>
<b>by </b><i>, <a class="ref" href="matrix_4.html#T1" target="_self">Th1</a>, , <a class="ref" href="funct_3.html#D8">FUNCT_3:def 8</a></i>
<br/>.= 
 <a href="finseq_1.html#K4">dom</a> <font color="Maroon">x</font>

;<br/>
<a NAME="E42:54_7"/><b>then </b><i><font color="Green">E102</font></i>: 
<font color="Maroon">i</font> <a href="hidden.html#R2">in</a>  <a href="relat_1.html#K1">dom</a> <span class="p1"><a href="funct_3.html#K13">&lt;:</a><span class="default"><font color="Maroon">y</font>,<font color="Maroon">z</font></span><a href="funct_3.html#K13">:&gt;</a></span>
 
<b>by </b><i>, <a class="ref" href="finseq_1.html#D3">FINSEQ_1:def 3</a></i>;<br/>
 <a href="relat_1.html#K1">dom</a> <span class="p1"><a href="funct_3.html#K13">&lt;:</a><span class="default"><span class="p2">(<span class="default"><font color="Maroon">x</font> <a href="fvsum_1.html#K3">+</a> <font color="Maroon">y</font></span>)</span>,<font color="Maroon">z</font></span><a href="funct_3.html#K13">:&gt;</a></span> = 
<span class="p1">(<span class="default"><a href="finseq_1.html#K4">dom</a> <span class="p2">(<span class="default"><font color="Maroon">x</font> <a href="fvsum_1.html#K3">+</a> <font color="Maroon">y</font></span>)</span></span>)</span> <a href="subset_1.html#K9">/\</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K4">dom</a> <font color="Maroon">z</font></span>)</span>
<b>by </b><i><a class="ref" href="funct_3.html#D8">FUNCT_3:def 8</a></i>
<br/>.= 
 <a href="finseq_1.html#K4">dom</a> <font color="Maroon">x</font>
<b>by </b><i><a class="ref" href="matrix_4.html#T1" target="_self">Th1</a>, , <a class="ref" href="finseq_1.html#D3">FINSEQ_1:def 3</a></i>
;<br/>
<a NAME="E44:54_7"/><b>then </b><i><font color="Green">E103</font></i>: 
<font color="Maroon">i</font> <a href="hidden.html#R2">in</a>  <a href="relat_1.html#K1">dom</a> <span class="p1"><a href="funct_3.html#K13">&lt;:</a><span class="default"><span class="p2">(<span class="default"><font color="Maroon">x</font> <a href="fvsum_1.html#K3">+</a> <font color="Maroon">y</font></span>)</span>,<font color="Maroon">z</font></span><a href="funct_3.html#K13">:&gt;</a></span>
 
<b>by </b><i>, <a class="ref" href="finseq_1.html#D3">FINSEQ_1:def 3</a></i>;<br/>
<i><font color="Green">E104</font></i>:  <a href="relat_1.html#K1">dom</a> <span class="p1"><a href="funct_3.html#K13">&lt;:</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y</font></span><a href="funct_3.html#K13">:&gt;</a></span> = 
<span class="p1">(<span class="default"><a href="finseq_1.html#K4">dom</a> <font color="Maroon">x</font></span>)</span> <a href="subset_1.html#K9">/\</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K4">dom</a> <font color="Maroon">y</font></span>)</span>
<b>by </b><i><a class="ref" href="funct_3.html#D8">FUNCT_3:def 8</a></i>
<br/>.= 
 <a href="finseq_1.html#K4">dom</a> <font color="Maroon">x</font>
<b>by </b><i>, </i>
;<br/>
<i><font color="Green">E105</font></i>:  <a href="relat_1.html#K1">dom</a> <span class="p1"><a href="funct_3.html#K13">&lt;:</a><span class="default"><span class="p2">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <font color="Maroon">x</font>,<font color="Maroon">z</font></span>)</span>,<span class="p2">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <font color="Maroon">y</font>,<font color="Maroon">z</font></span>)</span></span><a href="funct_3.html#K13">:&gt;</a></span> = 
<span class="p1">(<span class="default"><a href="finseq_1.html#K4">dom</a> <span class="p2">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <font color="Maroon">x</font>,<font color="Maroon">z</font></span>)</span></span>)</span> <a href="subset_1.html#K9">/\</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K4">dom</a> <span class="p2">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <font color="Maroon">y</font>,<font color="Maroon">z</font></span>)</span></span>)</span>
<b>by </b><i><a class="ref" href="funct_3.html#D8">FUNCT_3:def 8</a></i>
<br/>.= 
 <a href="finseq_1.html#K4">dom</a> <font color="Maroon">x</font>
<b>by </b><i><a class="txt" href="matrix_4.html#E3:54"><i><font color="Green">E30</font></i></a>, <a class="txt" href="matrix_4.html#E5:54"><i><font color="Green">E32</font></i></a>, <a class="ref" href="finseq_1.html#D3">FINSEQ_1:def 3</a></i>
;<br/>
<i><font color="Green">E106</font></i>: <span class="p1">(<span class="default"><font color="Maroon">x</font> <a href="fvsum_1.html#K3">+</a> <font color="Maroon">y</font></span>)</span> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font> = 
<span class="p1">(<span class="default">the <a href="rlvect_1.html#U1">add</a> of <font color="Maroon">K</font> <a href="finseqop.html#K1">.:</a> <font color="Maroon">x</font>,<font color="Maroon">y</font></span>)</span> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font>
<b>by </b><i><a class="ref" href="fvsum_1.html#D3">FVSUM_1:def 3</a></i>
<br/>.= 
<span class="p1">(<span class="default">the <a href="rlvect_1.html#U1">add</a> of <font color="Maroon">K</font> <a href="funct_1.html#NK3" target="_self">*</a> <span class="p2"><a href="funct_3.html#K13">&lt;:</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y</font></span><a href="funct_3.html#K13">:&gt;</a></span></span>)</span> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font>
<b>by </b><i><a class="ref" href="funcop_1.html#D3">FUNCOP_1:def 3</a></i>
<br/>.= 
the <a href="rlvect_1.html#U1">add</a> of <font color="Maroon">K</font> <a href="funct_1.html#K1">.</a> <span class="p1">(<span class="default"><span class="p2"><a href="funct_3.html#K13">&lt;:</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y</font></span><a href="funct_3.html#K13">:&gt;</a></span> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font></span>)</span>
<b>by </b><i>, <a class="ref" href="matrix_4.html#T26" target="_self">Th26</a>, <a class="ref" href="funct_1.html#T23">FUNCT_1:23</a></i>
<br/>.= 
the <a href="rlvect_1.html#U1">add</a> of <font color="Maroon">K</font> <a href="funct_1.html#K1">.</a> <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><span class="p2">(<span class="default"><font color="Maroon">x</font> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font></span>)</span>,<span class="p2">(<span class="default"><font color="Maroon">y</font> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font></span>)</span></span><a href="tarski.html#K4">]</a></span>
<b>by </b><i>, , , <a class="ref" href="funct_3.html#T69">FUNCT_3:69</a></i>
<br/>.= 
<font color="Maroon">a</font> <a href="rlvect_1.html#K4">+</a> <font color="Maroon">b</font>
<b>by </b><i><a class="ref" href="rlvect_1.html#D3">RLVECT_1:def 3</a></i>
;<br/>
<i><font color="Green">E107</font></i>: <span class="p1">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <span class="p2">(<span class="default"><font color="Maroon">x</font> <a href="fvsum_1.html#K3">+</a> <font color="Maroon">y</font></span>)</span>,<font color="Maroon">z</font></span>)</span> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font> = 
<span class="p1">(<span class="default">the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="finseqop.html#K1">.:</a> <span class="p2">(<span class="default"><font color="Maroon">x</font> <a href="fvsum_1.html#K3">+</a> <font color="Maroon">y</font></span>)</span>,<font color="Maroon">z</font></span>)</span> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font>
<b>by </b><i><a class="ref" href="fvsum_1.html#D7">FVSUM_1:def 7</a></i>
<br/>.= 
<span class="p1">(<span class="default">the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="funct_1.html#NK3" target="_self">*</a> <span class="p2"><a href="funct_3.html#K13">&lt;:</a><span class="default"><span class="p3">(<span class="default"><font color="Maroon">x</font> <a href="fvsum_1.html#K3">+</a> <font color="Maroon">y</font></span>)</span>,<font color="Maroon">z</font></span><a href="funct_3.html#K13">:&gt;</a></span></span>)</span> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font>
<b>by </b><i><a class="ref" href="funcop_1.html#D3">FUNCOP_1:def 3</a></i>
<br/>.= 
the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="funct_1.html#K1">.</a> <span class="p1">(<span class="default"><span class="p2"><a href="funct_3.html#K13">&lt;:</a><span class="default"><span class="p3">(<span class="default"><font color="Maroon">x</font> <a href="fvsum_1.html#K3">+</a> <font color="Maroon">y</font></span>)</span>,<font color="Maroon">z</font></span><a href="funct_3.html#K13">:&gt;</a></span> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font></span>)</span>
<b>by </b><i><a class="ref" href="matrix_4.html#T22" target="_self">Th22</a>, <a class="ref" href="funct_1.html#T23">FUNCT_1:23</a></i>
<br/>.= 
the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="binop_1.html#K1">.</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><font color="Maroon">x</font> <a href="fvsum_1.html#K3">+</a> <font color="Maroon">y</font></span>)</span> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font></span>)</span>,<span class="p1">(<span class="default"><font color="Maroon">z</font> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font></span>)</span>
<b>by </b><i>, <a class="txt" href="matrix_4.html#E7:54"><i><font color="Green">E34</font></i></a>, <a class="ref" href="matrix_4.html#T9" target="_self">Th9</a>, <a class="ref" href="funct_3.html#T69">FUNCT_3:69</a></i>
<br/>.= 
<font color="Maroon">d</font> <a href="group_1.html#K10">*</a> <font color="Maroon">e</font>
<b>by </b><i><a class="ref" href="group_1.html#D1">GROUP_1:def 1</a></i>
;<br/>
<i><font color="Green">E108</font></i>: <font color="Maroon">a</font> <a href="group_1.html#K10">*</a> <font color="Maroon">e</font> = 
the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="binop_1.html#K2">.</a> <font color="Maroon">a</font>,<font color="Maroon">e</font>
<b>by </b><i><a class="ref" href="group_1.html#D1">GROUP_1:def 1</a></i>
<br/>.= 
<span class="p1">(<span class="default">the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="finseqop.html#K7">*</a> <font color="Maroon">x</font>,<font color="Maroon">z</font></span>)</span> <a href="funct_1.html#K1">.</a> <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">i</font>,<font color="Maroon">i</font></span><a href="tarski.html#K4">]</a></span>
<b>by </b><i><a class="ref" href="matrix_4.html#T15" target="_self">Th15</a>, <a class="ref" href="finseqop.html#T82">FINSEQOP:82</a></i>
<br/>.= 
<span class="p1">(<span class="default">the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="funct_1.html#NK3" target="_self">*</a> <span class="p2"><a href="funct_3.html#K15">[:</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">z</font></span><a href="funct_3.html#K15">:]</a></span></span>)</span> <a href="funct_1.html#K1">.</a> <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">i</font>,<font color="Maroon">i</font></span><a href="tarski.html#K4">]</a></span>
<b>by </b><i><a class="ref" href="finseqop.html#D4">FINSEQOP:def 4</a></i>
<br/>.= 
the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="funct_1.html#K1">.</a> <span class="p1">(<span class="default"><span class="p2"><a href="funct_3.html#K15">[:</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">z</font></span><a href="funct_3.html#K15">:]</a></span> <a href="binop_1.html#K1">.</a> <font color="Maroon">i</font>,<font color="Maroon">i</font></span>)</span>
<b>by </b><i><a class="txt" href="matrix_4.html#E9:54"><i><font color="Green">E53</font></i></a>, <a class="ref" href="funct_1.html#T23">FUNCT_1:23</a></i>
<br/>.= 
the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="binop_1.html#K1">.</a> <span class="p1">(<span class="default"><font color="Maroon">x</font> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font></span>)</span>,<span class="p1">(<span class="default"><font color="Maroon">z</font> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font></span>)</span>
<b>by </b><i><a class="ref" href="matrix_4.html#T1" target="_self">Th1</a>, , <a class="txt" href="matrix_4.html#E7:54"><i><font color="Green">E34</font></i></a>, <a class="ref" href="matrix_4.html#T2" target="_self">Th2</a>, <a class="ref" href="matrix_4.html#T9" target="_self">Th9</a>, <a class="ref" href="funct_3.html#D9">FUNCT_3:def 9</a></i>
<br/>.= 
the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="funct_1.html#K1">.</a> <span class="p1">(<span class="default"><span class="p2"><a href="funct_3.html#K13">&lt;:</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">z</font></span><a href="funct_3.html#K13">:&gt;</a></span> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font></span>)</span>
<b>by </b><i><a class="ref" href="matrix_4.html#T1" target="_self">Th1</a>, , <a class="txt" href="matrix_4.html#E7:54"><i><font color="Green">E34</font></i></a>, <a class="ref" href="matrix_4.html#T2" target="_self">Th2</a>, <a class="ref" href="matrix_4.html#T9" target="_self">Th9</a>, <a class="ref" href="funct_3.html#T69">FUNCT_3:69</a></i>
<br/>.= 
<span class="p1">(<span class="default">the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="funct_1.html#NK3" target="_self">*</a> <span class="p2"><a href="funct_3.html#K13">&lt;:</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">z</font></span><a href="funct_3.html#K13">:&gt;</a></span></span>)</span> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font>
<b>by </b><i><a class="ref" href="matrix_4.html#T20" target="_self">Th20</a>, <a class="ref" href="funct_1.html#T23">FUNCT_1:23</a></i>
<br/>.= 
<span class="p1">(<span class="default">the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="finseqop.html#K1">.:</a> <font color="Maroon">x</font>,<font color="Maroon">z</font></span>)</span> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font>
<b>by </b><i><a class="ref" href="funcop_1.html#D3">FUNCOP_1:def 3</a></i>
<br/>.= 
<span class="p1">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <font color="Maroon">x</font>,<font color="Maroon">z</font></span>)</span> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font>
<b>by </b><i><a class="ref" href="fvsum_1.html#D7">FVSUM_1:def 7</a></i>
;<br/>
<i><font color="Green">E109</font></i>: <font color="Maroon">b</font> <a href="group_1.html#K10">*</a> <font color="Maroon">e</font> = 
the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="binop_1.html#K2">.</a> <font color="Maroon">b</font>,<font color="Maroon">e</font>
<b>by </b><i><a class="ref" href="group_1.html#D1">GROUP_1:def 1</a></i>
<br/>.= 
<span class="p1">(<span class="default">the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="finseqop.html#K7">*</a> <font color="Maroon">y</font>,<font color="Maroon">z</font></span>)</span> <a href="funct_1.html#K1">.</a> <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">i</font>,<font color="Maroon">i</font></span><a href="tarski.html#K4">]</a></span>
<b>by </b><i>, <a class="ref" href="finseqop.html#T82">FINSEQOP:82</a></i>
<br/>.= 
<span class="p1">(<span class="default">the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="funct_1.html#NK3" target="_self">*</a> <span class="p2"><a href="funct_3.html#K15">[:</a><span class="default"><font color="Maroon">y</font>,<font color="Maroon">z</font></span><a href="funct_3.html#K15">:]</a></span></span>)</span> <a href="funct_1.html#K1">.</a> <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">i</font>,<font color="Maroon">i</font></span><a href="tarski.html#K4">]</a></span>
<b>by </b><i><a class="ref" href="finseqop.html#D4">FINSEQOP:def 4</a></i>
<br/>.= 
the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="funct_1.html#K1">.</a> <span class="p1">(<span class="default"><span class="p2"><a href="funct_3.html#K15">[:</a><span class="default"><font color="Maroon">y</font>,<font color="Maroon">z</font></span><a href="funct_3.html#K15">:]</a></span> <a href="binop_1.html#K1">.</a> <font color="Maroon">i</font>,<font color="Maroon">i</font></span>)</span>
<b>by </b><i><a class="txt" href="matrix_4.html#E10:54"><i><font color="Green">E54</font></i></a>, <a class="ref" href="funct_1.html#T23">FUNCT_1:23</a></i>
<br/>.= 
the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="binop_1.html#K1">.</a> <span class="p1">(<span class="default"><font color="Maroon">y</font> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font></span>)</span>,<span class="p1">(<span class="default"><font color="Maroon">z</font> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font></span>)</span>
<b>by </b><i>, <a class="ref" href="matrix_4.html#T1" target="_self">Th1</a>, <a class="txt" href="matrix_4.html#E7:54"><i><font color="Green">E34</font></i></a>, <a class="ref" href="matrix_4.html#T2" target="_self">Th2</a>, <a class="ref" href="matrix_4.html#T9" target="_self">Th9</a>, <a class="ref" href="funct_3.html#D9">FUNCT_3:def 9</a></i>
<br/>.= 
the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="funct_1.html#K1">.</a> <span class="p1">(<span class="default"><span class="p2"><a href="funct_3.html#K13">&lt;:</a><span class="default"><font color="Maroon">y</font>,<font color="Maroon">z</font></span><a href="funct_3.html#K13">:&gt;</a></span> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font></span>)</span>
<b>by </b><i>, <a class="ref" href="matrix_4.html#T1" target="_self">Th1</a>, <a class="txt" href="matrix_4.html#E7:54"><i><font color="Green">E34</font></i></a>, <a class="ref" href="matrix_4.html#T2" target="_self">Th2</a>, <a class="ref" href="matrix_4.html#T9" target="_self">Th9</a>, <a class="ref" href="funct_3.html#T69">FUNCT_3:69</a></i>
<br/>.= 
<span class="p1">(<span class="default">the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="funct_1.html#NK3" target="_self">*</a> <span class="p2"><a href="funct_3.html#K13">&lt;:</a><span class="default"><font color="Maroon">y</font>,<font color="Maroon">z</font></span><a href="funct_3.html#K13">:&gt;</a></span></span>)</span> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font>
<b>by </b><i><a class="ref" href="matrix_4.html#T21" target="_self">Th21</a>, <a class="ref" href="funct_1.html#T23">FUNCT_1:23</a></i>
<br/>.= 
<span class="p1">(<span class="default">the <a href="group_1.html#U1">mult</a> of <font color="Maroon">K</font> <a href="finseqop.html#K1">.:</a> <font color="Maroon">y</font>,<font color="Maroon">z</font></span>)</span> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font>
<b>by </b><i><a class="ref" href="funcop_1.html#D3">FUNCOP_1:def 3</a></i>
<br/>.= 
<span class="p1">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <font color="Maroon">y</font>,<font color="Maroon">z</font></span>)</span> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font>
<b>by </b><i><a class="ref" href="fvsum_1.html#D7">FVSUM_1:def 7</a></i>
;<br/>
<a NAME="E51:54_7"/><i><font color="Green">E110</font></i>: 
the <a href="rlvect_1.html#U1">add</a> of <font color="Maroon">K</font> <a href="finseqop.html#K1">.:</a> <span class="p1">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <font color="Maroon">x</font>,<font color="Maroon">z</font></span>)</span>,<span class="p1">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <font color="Maroon">y</font>,<font color="Maroon">z</font></span>)</span> <a href="hidden.html#R1">=</a> <span class="p1">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <font color="Maroon">x</font>,<font color="Maroon">z</font></span>)</span> <a href="fvsum_1.html#K3">+</a> <span class="p1">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <font color="Maroon">y</font>,<font color="Maroon">z</font></span>)</span>
 
<b>by </b><i><a class="ref" href="fvsum_1.html#D3">FVSUM_1:def 3</a></i>;<br/>
<span class="p1">(<span class="default"><font color="Maroon">a</font> <a href="group_1.html#K10">*</a> <font color="Maroon">e</font></span>)</span> <a href="rlvect_1.html#K4">+</a> <span class="p1">(<span class="default"><font color="Maroon">b</font> <a href="group_1.html#K10">*</a> <font color="Maroon">e</font></span>)</span> = 
the <a href="rlvect_1.html#U1">add</a> of <font color="Maroon">K</font> <a href="funct_1.html#K1">.</a> <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><span class="p2">(<span class="default"><font color="Maroon">a</font> <a href="group_1.html#K10">*</a> <font color="Maroon">e</font></span>)</span>,<span class="p2">(<span class="default"><font color="Maroon">b</font> <a href="group_1.html#K10">*</a> <font color="Maroon">e</font></span>)</span></span><a href="tarski.html#K4">]</a></span>
<b>by </b><i><a class="ref" href="rlvect_1.html#D3">RLVECT_1:def 3</a></i>
<br/>.= 
the <a href="rlvect_1.html#U1">add</a> of <font color="Maroon">K</font> <a href="funct_1.html#K1">.</a> <span class="p1">(<span class="default"><span class="p2"><a href="funct_3.html#K13">&lt;:</a><span class="default"><span class="p3">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <font color="Maroon">x</font>,<font color="Maroon">z</font></span>)</span>,<span class="p3">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <font color="Maroon">y</font>,<font color="Maroon">z</font></span>)</span></span><a href="funct_3.html#K13">:&gt;</a></span> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font></span>)</span>
<b>by </b><i><a class="txt" href="matrix_4.html#E3:54"><i><font color="Green">E30</font></i></a>, <a class="txt" href="matrix_4.html#E4:54"><i><font color="Green">E31</font></i></a>, <a class="txt" href="matrix_4.html#E6:54"><i><font color="Green">E33</font></i></a>, , <a class="ref" href="matrix_4.html#T44" target="_self">Th44</a>, <a class="ref" href="matrix_4.html#T46" target="_self">Th46</a>, <a class="ref" href="funct_3.html#T69">FUNCT_3:69</a></i>
<br/>.= 
<span class="p1">(<span class="default">the <a href="rlvect_1.html#U1">add</a> of <font color="Maroon">K</font> <a href="funct_1.html#NK3" target="_self">*</a> <span class="p2"><a href="funct_3.html#K13">&lt;:</a><span class="default"><span class="p3">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <font color="Maroon">x</font>,<font color="Maroon">z</font></span>)</span>,<span class="p3">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <font color="Maroon">y</font>,<font color="Maroon">z</font></span>)</span></span><a href="funct_3.html#K13">:&gt;</a></span></span>)</span> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font>
<b>by </b><i>, <a class="ref" href="matrix_4.html#T28" target="_self">Th28</a>, <a class="ref" href="funct_1.html#T23">FUNCT_1:23</a></i>
<br/>.= 
<span class="p1">(<span class="default"><span class="p2">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <font color="Maroon">x</font>,<font color="Maroon">z</font></span>)</span> <a href="fvsum_1.html#K3">+</a> <span class="p2">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <font color="Maroon">y</font>,<font color="Maroon">z</font></span>)</span></span>)</span> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font>
<b>by </b><i><a class="ref" href="matrix_4.html#T47" target="_self">Th47</a>, <a class="ref" href="funcop_1.html#D3">FUNCOP_1:def 3</a></i>
;<br/>
<b>hence </b><a NAME="E53:54_7"/>
<span class="p1">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <span class="p2">(<span class="default"><font color="Maroon">x</font> <a href="fvsum_1.html#K3">+</a> <font color="Maroon">y</font></span>)</span>,<font color="Maroon">z</font></span>)</span> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font> <a href="hidden.html#R1">=</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <font color="Maroon">x</font>,<font color="Maroon">z</font></span>)</span> <a href="fvsum_1.html#K3">+</a> <span class="p2">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <font color="Maroon">y</font>,<font color="Maroon">z</font></span>)</span></span>)</span> <a href="funct_1.html#K1">.</a> <font color="Maroon">i</font>
 <b>by </b><i><a class="ref" href="matrix_4.html#T31" target="_self">Th31</a>, <a class="ref" href="matrix_4.html#T38" target="_self">Th38</a>, <a class="ref" href="vectsp_1.html#D18">VECTSP_1:def 18</a></i>;<br/>


</div><b>end;</b></div>
<b>hence </b><a NAME="E13:54"/>
 <a href="fvsum_1.html#K11">mlt</a> <span class="p1">(<span class="default"><font color="Maroon">x</font> <a href="fvsum_1.html#K3">+</a> <font color="Maroon">y</font></span>)</span>,<font color="Maroon">z</font> <a href="hidden.html#R1">=</a> <span class="p1">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <font color="Maroon">x</font>,<font color="Maroon">z</font></span>)</span> <a href="fvsum_1.html#K3">+</a> <span class="p1">(<span class="default"><a href="fvsum_1.html#K11">mlt</a> <font color="Maroon">y</font>,<font color="Maroon">z</font></span>)</span>
 <b>by </b><i><a class="txt" href="matrix_4.html#E1:54"><i><font color="Green">E29</font></i></a>, <a class="ref" href="finseq_1.html#T17">FINSEQ_1:17</a></i>;<br/>


</div>
