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

<b>set </b><font color="Maroon">M1</font> = <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p4">(<span class="default"><font color="Olive">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span> ;<br/>
<b>set </b><font color="Maroon">M2</font> = <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span> ;<br/>
<b>set </b><font color="Maroon">M</font> = <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p4">(<span class="default"><font color="Olive">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  <a href="xboole_0.html#K2">\/</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span> ;<br/>
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="24_1_1_1"><b>now </b></a><div class="add"><b>let </b><font color="Maroon">u</font> be    <a href="hidden.html#M1">set</a> ;<br/><b>assume </b><a NAME="E1:24_1_1_1"/><i><font color="Green">E23</font></i>: 
<font color="Maroon">u</font> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p4">(<span class="default"><font color="Olive">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  <a href="xboole_0.html#K2">\/</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span> 
 ;<br/><div><a class="txt" onclick="hs2(this)" href="javascript:()" title="24_1_1_1_1"><b>now </b></a><div class="add"><div><a class="txt" onclick="hsNdiv(this)" href="javascript:()" title="24_1_1_1_1_1"><b>per </b></a><a class="txt" onclick="hs(this)" href="javascript:()"><b>cases </b></a><span class="hide"><a NAME="E1:24_1_1_1_1_1"/>
( <font color="Maroon">u</font> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p4">(<span class="default"><font color="Olive">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  or <font color="Maroon">u</font> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  )
 </span><b>by </b><i>, <a class="ref" href="xboole_0.html#D2">XBOOLE_0:def 2</a></i>;<br/><div class="add"><div><a class="txt" onclick="hsNdiv(this)" href="javascript:()" title="24_1_1_1_1_1_1"><b>case </b></a><a NAME="E1:24_1_1_1_1_1_1"/>
<font color="Maroon">u</font> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p4">(<span class="default"><font color="Olive">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span> 
 ;<br/><div class="add"><b>then consider </b><font color="Maroon">b'</font> being    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font><b> such that </b><br/><a NAME="E3:24_1_1_1_1_1_1"/><i><font color="Green">E24</font></i>: 
( <font color="Maroon">u</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">b'</font>,<span class="p2">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p3">(<span class="default"><font color="Maroon">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> &amp; <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Maroon">b'</font> )
 ;<br/><b>thus </b><a NAME="E4:24_1_1_1_1_1_1"/>
<font color="Maroon">u</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="zfmisc_1.html#K2">[:</a><span class="default"><span class="p2">(<span class="default"><a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font></span>)</span>,the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">L</font></span><a href="zfmisc_1.html#K2">:]</a></span>
 <b>by </b><i>, <a class="ref" href="zfmisc_1.html#D2">ZFMISC_1:def 2</a></i>;<br/></div><b>end;</b></div><div><a class="txt" onclick="hsNdiv(this)" href="javascript:()" title="24_1_1_1_1_1_2"><b>case </b></a><a NAME="E1:24_1_1_1_1_1_2"/>
<font color="Maroon">u</font> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span> 
 ;<br/><div class="add"><b>then consider </b><font color="Maroon">b'</font> being    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font><b> such that </b><br/><a NAME="E3:24_1_1_1_1_1_2"/><i><font color="Green">E26</font></i>: 
( <font color="Maroon">u</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">b'</font>,<span class="p2">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> &amp; not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Maroon">b'</font> )
 ;<br/><b>thus </b><a NAME="E4:24_1_1_1_1_1_2"/>
<font color="Maroon">u</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="zfmisc_1.html#K2">[:</a><span class="default"><span class="p2">(<span class="default"><a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font></span>)</span>,the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">L</font></span><a href="zfmisc_1.html#K2">:]</a></span>
 <b>by </b><i>, <a class="ref" href="zfmisc_1.html#D2">ZFMISC_1:def 2</a></i>;<br/></div><b>end;</b></div></div><b>end;</b></div></div><b>end;</b></div><b>hence </b><a NAME="E3:24_1_1_1"/>
<font color="Maroon">u</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="zfmisc_1.html#K2">[:</a><span class="default"><span class="p2">(<span class="default"><a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font></span>)</span>,the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">L</font></span><a href="zfmisc_1.html#K2">:]</a></span>
 ;<br/></div><b>end;</b></div>
<a NAME="E2:24_1_1"/><b>then </b>
<span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p4">(<span class="default"><font color="Olive">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  <a href="xboole_0.html#K2">\/</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  <a href="tarski.html#R1">c=</a> <span class="p1"><a href="zfmisc_1.html#K2">[:</a><span class="default"><span class="p2">(<span class="default"><a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font></span>)</span>,the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">L</font></span><a href="zfmisc_1.html#K2">:]</a></span>
 
<b>by </b><i><a class="ref" href="tarski.html#D3">TARSKI:def 3</a></i>;<br/>
<b>then reconsider </b><font color="Maroon">M</font> = <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p4">(<span class="default"><font color="Olive">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  <a href="xboole_0.html#K2">\/</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  as    <a href="relset_1.html#M2">Relation</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font>,the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">L</font> <b>by </b><i><a class="ref" href="relset_1.html#D1">RELSET_1:def 1</a></i>;<br/>
<div><i><font color="Green">E27</font></i>: <a class="txt" onclick="hs2(this)" href="javascript:()" title="24_1_1_2"><b>now </b></a><div class="add"><b>let </b><font color="Maroon">x</font> be    <a href="hidden.html#M1">set</a> , <font color="Maroon">y1</font> be    <a href="hidden.html#M1">set</a> , <font color="Maroon">y2</font> be    <a href="hidden.html#M1">set</a> ;<br/><b>assume </b><a NAME="E1:24_1_1_2"/><i><font color="Green">E38</font></i>: 
( <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y1</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <font color="Maroon">M</font> &amp; <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y2</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <font color="Maroon">M</font> )
 ;<br/><div><i><font color="Green">E49</font></i>: <a class="txt" onclick="hs2(this)" href="javascript:()" title="24_1_1_2_1"><b>now </b></a><div class="add"><b>assume </b><a NAME="E1:24_1_1_2_1"/><i><font color="Green">E50</font></i>: 
( <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y1</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p4">(<span class="default"><font color="Olive">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  &amp; <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y2</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  )
 ;<br/><b>then consider </b><font color="Maroon">u</font> being    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font><b> such that </b><br/><a NAME="E3:24_1_1_2_1"/><i><font color="Green">E51</font></i>: 
( <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">u</font>,<span class="p2">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p3">(<span class="default"><font color="Maroon">u</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R1">=</a> <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y1</font></span><a href="tarski.html#K4">]</a></span> &amp; <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Maroon">u</font> )
 ;<br/><b>consider </b><font color="Maroon">v</font> being    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font><b> such that </b><br/><a NAME="E5:24_1_1_2_1"/><i><font color="Green">E52</font></i>: 
( <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">v</font>,<span class="p2">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R1">=</a> <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y2</font></span><a href="tarski.html#K4">]</a></span> &amp; not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Maroon">v</font> )
 <b>by </b><i/>;<br/><font color="Maroon">u</font> = 
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y1</font></span><a href="tarski.html#K4">]</a></span> <a href="mcart_1.html#K1">`1</a> 
<b>by </b><i>, <a class="ref" href="mcart_1.html#D1">MCART_1:def 1</a></i>
<br/>.= 
<font color="Maroon">x</font>
<b>by </b><i><a class="ref" href="mcart_1.html#D1">MCART_1:def 1</a></i>
<br/>.= 
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">v</font>,<span class="p2">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> <a href="mcart_1.html#K1">`1</a> 
<b>by </b><i>, <a class="ref" href="mcart_1.html#D1">MCART_1:def 1</a></i>
<br/>.= 
<font color="Maroon">v</font>
<b>by </b><i><a class="ref" href="mcart_1.html#D1">MCART_1:def 1</a></i>
;<br/><b>hence </b><a NAME="E7:24_1_1_2_1"/>
contradiction
 <b>by </b><i>, </i>;<br/></div><b>end;</b></div><div><i><font color="Green">E53</font></i>: <a class="txt" onclick="hs2(this)" href="javascript:()" title="24_1_1_2_2"><b>now </b></a><div class="add"><b>assume </b><a NAME="E1:24_1_1_2_2"/><i><font color="Green">E55</font></i>: 
( <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y1</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  &amp; <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y2</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p4">(<span class="default"><font color="Olive">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  )
 ;<br/><b>then consider </b><font color="Maroon">u</font> being    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font><b> such that </b><br/><a NAME="E3:24_1_1_2_2"/><i><font color="Green">E56</font></i>: 
( <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">u</font>,<span class="p2">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p3">(<span class="default"><font color="Maroon">u</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R1">=</a> <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y2</font></span><a href="tarski.html#K4">]</a></span> &amp; <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Maroon">u</font> )
 ;<br/><b>consider </b><font color="Maroon">v</font> being    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font><b> such that </b><br/><a NAME="E5:24_1_1_2_2"/><i><font color="Green">E57</font></i>: 
( <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">v</font>,<span class="p2">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R1">=</a> <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y1</font></span><a href="tarski.html#K4">]</a></span> &amp; not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Maroon">v</font> )
 <b>by </b><i/>;<br/><font color="Maroon">u</font> = 
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y2</font></span><a href="tarski.html#K4">]</a></span> <a href="mcart_1.html#K1">`1</a> 
<b>by </b><i>, <a class="ref" href="mcart_1.html#D1">MCART_1:def 1</a></i>
<br/>.= 
<font color="Maroon">x</font>
<b>by </b><i><a class="ref" href="mcart_1.html#D1">MCART_1:def 1</a></i>
<br/>.= 
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">v</font>,<span class="p2">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> <a href="mcart_1.html#K1">`1</a> 
<b>by </b><i><a class="txt" href="polyred.html#E4:24_1_1"><i><font color="Green">E27</font></i></a>, <a class="ref" href="mcart_1.html#D1">MCART_1:def 1</a></i>
<br/>.= 
<font color="Maroon">v</font>
<b>by </b><i><a class="ref" href="mcart_1.html#D1">MCART_1:def 1</a></i>
;<br/><b>hence </b><a NAME="E7:24_1_1_2_2"/>
contradiction
 <b>by </b><i>, <a class="txt" href="polyred.html#E4:24_1_1"><i><font color="Green">E27</font></i></a></i>;<br/></div><b>end;</b></div><b>thus </b><a NAME="E4:24_1_1_2"/>
( ( <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y1</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p4">(<span class="default"><font color="Olive">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  &amp; <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y2</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p4">(<span class="default"><font color="Olive">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  ) or ( <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y1</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  &amp; <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y2</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  ) )
 <div><a class="txt" onclick="hs2(this)" href="javascript:()" title="24_1_1_2_3"><b>proof </b></a><div class="add">

<b>assume </b><a NAME="E1:24_1_1_2_3"/><i><font color="Green">E58</font></i>: 
(  not <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y1</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p4">(<span class="default"><font color="Olive">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  or  not <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y2</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p4">(<span class="default"><font color="Olive">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  )
 ;<br/>

<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="24_1_1_2_3_1"><b>now </b></a><div class="add"><div><a class="txt" onclick="hsNdiv(this)" href="javascript:()" title="24_1_1_2_3_1_1"><b>per </b></a><a class="txt" onclick="hs(this)" href="javascript:()"><b>cases </b></a><span class="hide"><a NAME="E1:24_1_1_2_3_1_1"/>
(  not <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y1</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p4">(<span class="default"><font color="Olive">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  or  not <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y2</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p4">(<span class="default"><font color="Olive">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  )
 </span><b>by </b><i/>;<br/><div class="add"><div><a class="txt" onclick="hsNdiv(this)" href="javascript:()" title="24_1_1_2_3_1_1_1"><b>case </b></a><a NAME="E1:24_1_1_2_3_1_1_1"/>
not <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y1</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p4">(<span class="default"><font color="Olive">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span> 
 ;<br/><div class="add"><b>hence </b><a NAME="E2:24_1_1_2_3_1_1_1"/>
( <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y1</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  &amp; <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y2</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  )
 <b>by </b><i>, , <a class="ref" href="xboole_0.html#D2">XBOOLE_0:def 2</a></i>;<br/></div><b>end;</b></div><div><a class="txt" onclick="hsNdiv(this)" href="javascript:()" title="24_1_1_2_3_1_1_2"><b>case </b></a><a NAME="E1:24_1_1_2_3_1_1_2"/>
not <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y2</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p4">(<span class="default"><font color="Olive">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span> 
 ;<br/><div class="add"><b>hence </b><a NAME="E2:24_1_1_2_3_1_1_2"/>
( <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y1</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  &amp; <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y2</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  )
 <b>by </b><i>, , <a class="ref" href="xboole_0.html#D2">XBOOLE_0:def 2</a></i>;<br/></div><b>end;</b></div></div><b>end;</b></div></div><b>end;</b></div>
<b>hence </b><a NAME="E3:24_1_1_2_3"/>
( <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y1</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  &amp; <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y2</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  )
 ;<br/>


</div><b>end;</b></div></div><b>end;</b></div>
<div><i><font color="Green">E59</font></i>: <a class="txt" onclick="hs2(this)" href="javascript:()" title="24_1_1_3"><b>now </b></a><div class="add"><b>let </b><font color="Maroon">x</font> be    <a href="hidden.html#M1">set</a> , <font color="Maroon">y1</font> be    <a href="hidden.html#M1">set</a> , <font color="Maroon">y2</font> be    <a href="hidden.html#M1">set</a> ;<br/><b>assume </b><a NAME="E1:24_1_1_3"/><i><font color="Green">E60</font></i>: 
( <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y1</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <font color="Maroon">M</font> &amp; <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y2</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <font color="Maroon">M</font> )
 ;<br/><div><a class="txt" onclick="hs2(this)" href="javascript:()" title="24_1_1_3_1"><b>now </b></a><div class="add"><div><a class="txt" onclick="hsNdiv(this)" href="javascript:()" title="24_1_1_3_1_1"><b>per </b></a><a class="txt" onclick="hs(this)" href="javascript:()"><b>cases </b></a><span class="hide"><a NAME="E1:24_1_1_3_1_1"/>
( ( <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y1</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p4">(<span class="default"><font color="Olive">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  &amp; <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y2</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p4">(<span class="default"><font color="Olive">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  ) or ( <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y1</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  &amp; <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y2</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  ) )
 </span><b>by </b><i>, </i>;<br/><div class="add"><div><a class="txt" onclick="hsNdiv(this)" href="javascript:()" title="24_1_1_3_1_1_1"><b>case </b></a><a NAME="E1:24_1_1_3_1_1_1"/><i><font color="Green">E61</font></i>: 
( <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y1</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p4">(<span class="default"><font color="Olive">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  &amp; <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y2</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p4">(<span class="default"><font color="Olive">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  )
 ;<br/><div class="add"><b>then consider </b><font color="Maroon">u</font> being    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font><b> such that </b><br/><a NAME="E3:24_1_1_3_1_1_1"/><i><font color="Green">E62</font></i>: 
( <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">u</font>,<span class="p2">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p3">(<span class="default"><font color="Maroon">u</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R1">=</a> <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y1</font></span><a href="tarski.html#K4">]</a></span> &amp; <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Maroon">u</font> )
 ;<br/><b>consider </b><font color="Maroon">v</font> being    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font><b> such that </b><br/><a NAME="E5:24_1_1_3_1_1_1"/><i><font color="Green">E63</font></i>: 
( <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">v</font>,<span class="p2">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p3">(<span class="default"><font color="Maroon">v</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R1">=</a> <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y2</font></span><a href="tarski.html#K4">]</a></span> &amp; <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Maroon">v</font> )
 <b>by </b><i/>;<br/><font color="Maroon">u</font> = 
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y1</font></span><a href="tarski.html#K4">]</a></span> <a href="mcart_1.html#K1">`1</a> 
<b>by </b><i>, <a class="ref" href="mcart_1.html#D1">MCART_1:def 1</a></i>
<br/>.= 
<font color="Maroon">x</font>
<b>by </b><i><a class="ref" href="mcart_1.html#D1">MCART_1:def 1</a></i>
<br/>.= 
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">v</font>,<span class="p2">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p3">(<span class="default"><font color="Maroon">v</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> <a href="mcart_1.html#K1">`1</a> 
<b>by </b><i>, <a class="ref" href="mcart_1.html#D1">MCART_1:def 1</a></i>
<br/>.= 
<font color="Maroon">v</font>
<b>by </b><i><a class="ref" href="mcart_1.html#D1">MCART_1:def 1</a></i>
;<br/><b>hence </b><font color="Maroon">y1</font> = 
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y2</font></span><a href="tarski.html#K4">]</a></span> <a href="mcart_1.html#K2">`2</a> 
<b>by </b><i>, , <a class="ref" href="mcart_1.html#D2">MCART_1:def 2</a></i>
<br/>.= 
<font color="Maroon">y2</font>
<b>by </b><i><a class="ref" href="mcart_1.html#D2">MCART_1:def 2</a></i>
;<br/><br/></div><b>end;</b></div><div><a class="txt" onclick="hsNdiv(this)" href="javascript:()" title="24_1_1_3_1_1_2"><b>case </b></a><a NAME="E1:24_1_1_3_1_1_2"/><i><font color="Green">E66</font></i>: 
( <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y1</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  &amp; <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y2</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span>  )
 ;<br/><div class="add"><b>then consider </b><font color="Maroon">u</font> being    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font><b> such that </b><br/><a NAME="E3:24_1_1_3_1_1_2"/><i><font color="Green">E67</font></i>: 
( <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">u</font>,<span class="p2">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R1">=</a> <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y1</font></span><a href="tarski.html#K4">]</a></span> &amp; not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Maroon">u</font> )
 ;<br/><b>consider </b><font color="Maroon">v</font> being    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font><b> such that </b><br/><a NAME="E5:24_1_1_3_1_1_2"/><i><font color="Green">E68</font></i>: 
( <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">v</font>,<span class="p2">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R1">=</a> <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y2</font></span><a href="tarski.html#K4">]</a></span> &amp; not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Maroon">v</font> )
 <b>by </b><i/>;<br/><b>thus </b><font color="Maroon">y1</font> = 
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y1</font></span><a href="tarski.html#K4">]</a></span> <a href="mcart_1.html#K2">`2</a> 
<b>by </b><i><a class="ref" href="mcart_1.html#D2">MCART_1:def 2</a></i>
<br/>.= 
 <a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font>
<b>by </b><i>, <a class="ref" href="mcart_1.html#D2">MCART_1:def 2</a></i>
<br/>.= 
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y2</font></span><a href="tarski.html#K4">]</a></span> <a href="mcart_1.html#K2">`2</a> 
<b>by </b><i>, <a class="ref" href="mcart_1.html#D2">MCART_1:def 2</a></i>
<br/>.= 
<font color="Maroon">y2</font>
<b>by </b><i><a class="ref" href="mcart_1.html#D2">MCART_1:def 2</a></i>
;<br/></div><b>end;</b></div></div><b>end;</b></div></div><b>end;</b></div><b>hence </b><a NAME="E3:24_1_1_3"/>
<font color="Maroon">y1</font> <a href="hidden.html#R1">=</a> <font color="Maroon">y2</font>
 ;<br/></div><b>end;</b></div>
<a NAME="E6:24_1_1"/><i><font color="Green">E69</font></i>: 
for <font color="Olive">u</font> being   <a href="hidden.html#M1">set</a>   st <font color="Olive">u</font> <a href="hidden.html#R2">in</a>  <a href="relset_1.html#K4">dom</a> <font color="Maroon">M</font> holds <br/><font color="Olive">u</font> <a href="hidden.html#R2">in</a>  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font>
 
;<br/>
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="24_1_1_4"><b>now </b></a><div class="add"><b>let </b><font color="Maroon">u</font> be    <a href="hidden.html#M1">set</a> ;<br/><b>assume </b><a NAME="E1:24_1_1_4"/>
<font color="Maroon">u</font> <a href="hidden.html#R2">in</a>  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font>
 ;<br/><b>then reconsider </b><font color="Maroon">u'</font> = <font color="Maroon">u</font> as   <a href="polynom1.html#NM1">bag</a> of <font color="Maroon">n</font> <b>by </b><i><a class="ref" href="polynom1.html#D14">POLYNOM1:def 14</a></i>;<br/><a NAME="E3:24_1_1_4"/><i><font color="Green">E70</font></i>: 
<font color="Maroon">u'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font>
 <b>by </b><i><a class="ref" href="polynom1.html#D14">POLYNOM1:def 14</a></i>;<br/><div><a class="txt" onclick="hs2(this)" href="javascript:()" title="24_1_1_4_1"><b>now </b></a><div class="add"><div><a class="txt" onclick="hsNdiv(this)" href="javascript:()" title="24_1_1_4_1_1"><b>per </b></a><a class="txt" onclick="hs(this)" href="javascript:()"><b>cases </b></a><span class="hide"><a NAME="E1:24_1_1_4_1_1"/>
(  not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Maroon">u'</font> or <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Maroon">u'</font> )
 </span>;<br/><div class="add"><div><a class="txt" onclick="hsNdiv(this)" href="javascript:()" title="24_1_1_4_1_1_1"><b>case </b></a><a NAME="E1:24_1_1_4_1_1_1"/>
not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Maroon">u'</font>
 ;<br/><div class="add"><a NAME="E2:24_1_1_4_1_1_1"/><b>then </b>
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">u'</font>,<span class="p2">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span> 
 <b>by </b><i/>;<br/><a NAME="E3:24_1_1_4_1_1_1"/><b>then </b>
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">u'</font>,<span class="p2">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <font color="Maroon">M</font>
 <b>by </b><i><a class="ref" href="xboole_0.html#D2">XBOOLE_0:def 2</a></i>;<br/><b>hence </b><a NAME="E4:24_1_1_4_1_1_1"/>
<font color="Maroon">u</font> <a href="hidden.html#R2">in</a>  <a href="relset_1.html#K4">dom</a> <font color="Maroon">M</font>
 <b>by </b><i><a class="ref" href="relat_1.html#D4">RELAT_1:def 4</a></i>;<br/></div><b>end;</b></div><div><a class="txt" onclick="hsNdiv(this)" href="javascript:()" title="24_1_1_4_1_1_2"><b>case </b></a><a NAME="E1:24_1_1_4_1_1_2"/>
<font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Maroon">u'</font>
 ;<br/><div class="add"><a NAME="E2:24_1_1_4_1_1_2"/><b>then </b>
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">u'</font>,<span class="p2">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p3">(<span class="default"><font color="Maroon">u'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">b'</font>,<span class="p3">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p4">(<span class="default"><font color="Olive">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> </span>}</span> 
 <b>by </b><i/>;<br/><a NAME="E3:24_1_1_4_1_1_2"/><b>then </b>
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">u'</font>,<span class="p2">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p3">(<span class="default"><font color="Maroon">u'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <font color="Maroon">M</font>
 <b>by </b><i><a class="ref" href="xboole_0.html#D2">XBOOLE_0:def 2</a></i>;<br/><b>hence </b><a NAME="E4:24_1_1_4_1_1_2"/>
<font color="Maroon">u</font> <a href="hidden.html#R2">in</a>  <a href="relset_1.html#K4">dom</a> <font color="Maroon">M</font>
 <b>by </b><i><a class="ref" href="relat_1.html#D4">RELAT_1:def 4</a></i>;<br/></div><b>end;</b></div></div><b>end;</b></div></div><b>end;</b></div><b>hence </b><a NAME="E5:24_1_1_4"/>
<font color="Maroon">u</font> <a href="hidden.html#R2">in</a>  <a href="relset_1.html#K4">dom</a> <font color="Maroon">M</font>
 ;<br/></div><b>end;</b></div>
<a NAME="E8:24_1_1"/><b>then </b>
 <a href="relset_1.html#K4">dom</a> <font color="Maroon">M</font> <a href="hidden.html#R1">=</a>  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font>
 
<b>by </b><i>, <a class="ref" href="tarski.html#T2">TARSKI:2</a></i>;<br/>
<b>then reconsider </b><font color="Maroon">M</font> = <font color="Maroon">M</font> as   <a href="funct_2.html#NM1">Function</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font>,the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">L</font> <b>by </b><i>, <a class="ref" href="funct_1.html#D1">FUNCT_1:def 1</a>, <a class="ref" href="funct_2.html#D1">FUNCT_2:def 1</a></i>;<br/>
<b>reconsider </b><font color="Maroon">M</font> = <font color="Maroon">M</font> as   <a href="struct_0.html#NM5">Function</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font>,<font color="Maroon">L</font> ;<br/>
<b>take </b>
<font color="Maroon">M</font>
;<br/>

<div><i><font color="Green">E71</font></i>: <a class="txt" onclick="hs2(this)" href="javascript:()" title="24_1_1_5"><b>now </b></a><div class="add"><b>let </b><font color="Maroon">b'</font> be   <a href="polynom1.html#NM1">bag</a> of <font color="Maroon">n</font>;<br/><b>assume </b><a NAME="E1:24_1_1_5"/><i><font color="Green">E82</font></i>: 
<font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Maroon">b'</font>
 ;<br/><a NAME="E2:24_1_1_5"/>
<font color="Maroon">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font>
 <b>by </b><i><a class="ref" href="polynom1.html#D14">POLYNOM1:def 14</a></i>;<br/><a NAME="E3:24_1_1_5"/><b>then </b>
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">b'</font>,<span class="p2">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p3">(<span class="default"><font color="Maroon">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">u</font>,<span class="p3">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p4">(<span class="default"><font color="Olive">u</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">u</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">u</font> </span>}</span> 
 <b>by </b><i/>;<br/><a NAME="E4:24_1_1_5"/><b>then </b>
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">b'</font>,<span class="p2">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p3">(<span class="default"><font color="Maroon">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span></span>)</span></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <font color="Maroon">M</font>
 <b>by </b><i><a class="ref" href="xboole_0.html#D2">XBOOLE_0:def 2</a></i>;<br/><b>hence </b><a NAME="E5:24_1_1_5"/>
<font color="Maroon">M</font> <a href="polynom1.html#K15">.</a> <font color="Maroon">b'</font> <a href="hidden.html#R1">=</a> <font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p1">(<span class="default"><font color="Maroon">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span>
 <b>by </b><i><a class="ref" href="funct_1.html#T8">FUNCT_1:8</a></i>;<br/></div><b>end;</b></div>
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="24_1_1_6"><b>now </b></a><div class="add"><b>let </b><font color="Maroon">b'</font> be   <a href="polynom1.html#NM1">bag</a> of <font color="Maroon">n</font>;<br/><b>assume </b><a NAME="E1:24_1_1_6"/><i><font color="Green">E83</font></i>: 
not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Maroon">b'</font>
 ;<br/><a NAME="E2:24_1_1_6"/>
<font color="Maroon">b'</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font>
 <b>by </b><i><a class="ref" href="polynom1.html#D14">POLYNOM1:def 14</a></i>;<br/><a NAME="E3:24_1_1_6"/><b>then </b>
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">b'</font>,<span class="p2">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">u</font>,<span class="p3">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> where <font color="Olive">u</font> is    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">n</font> : not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">u</font> </span>}</span> 
 <b>by </b><i/>;<br/><a NAME="E4:24_1_1_6"/><b>then </b>
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">b'</font>,<span class="p2">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font></span>)</span></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <font color="Maroon">M</font>
 <b>by </b><i><a class="ref" href="xboole_0.html#D2">XBOOLE_0:def 2</a></i>;<br/><b>hence </b><a NAME="E5:24_1_1_6"/>
<font color="Maroon">M</font> <a href="polynom1.html#K15">.</a> <font color="Maroon">b'</font> <a href="hidden.html#R1">=</a>  <a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font>
 <b>by </b><i><a class="ref" href="funct_1.html#T8">FUNCT_1:8</a></i>;<br/></div><b>end;</b></div>
<b>hence </b><a NAME="E13:24_1_1"/>
for <font color="Olive">b'</font> being  <a href="polynom1.html#NM1">bag</a> of <font color="Maroon">n</font>  st <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> holds <br/>( <font color="Maroon">M</font> <a href="polynom1.html#K15">.</a> <font color="Olive">b'</font> <a href="hidden.html#R1">=</a> <font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <span class="p1">(<span class="default"><font color="Olive">b'</font> <a href="polynom1.html#K10">-'</a> <font color="Maroon">b</font></span>)</span> &amp; ( for <font color="Olive">b'</font> being  <a href="polynom1.html#NM1">bag</a> of <font color="Maroon">n</font>  st not <font color="Maroon">b</font> <a href="polynom1.html#R3">divides</a> <font color="Olive">b'</font> holds <br/><font color="Maroon">M</font> <a href="polynom1.html#K15">.</a> <font color="Olive">b'</font> <a href="hidden.html#R1">=</a>  <a href="rlvect_1.html#K1">0.</a> <font color="Maroon">L</font> ) )
 <b>by </b><i/>;<br/>


</div>
