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

<b>let </b><font color="Maroon">N</font> be   <a href="e_siec.html#NM2">e_net</a>;<br/>

<a NAME="E1:36"/><i><font color="Green">E16</font></i>: 
<span class="p1">(<span class="default"><a href="relat_1.html#K6">id</a> <span class="p2">(<span class="default">the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p3">(<span class="default"><a href="relat_1.html#K2">rng</a> the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font></span>)</span></span>)</span></span>)</span> <a href="relat_1.html#K5">*</a> <span class="p1">(<span class="default">the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p2">(<span class="default"><a href="relat_1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font></span>)</span></span>)</span> <a href="tarski.html#R1">c=</a> the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p1">(<span class="default"><a href="relat_1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font></span>)</span>
 
<b>by </b><i><a class="ref" href="relat_1.html#T76">RELAT_1:76</a></i>;<br/>
<a NAME="E2:36"/><i><font color="Green">E21</font></i>: 
the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p1">(<span class="default"><a href="relat_1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font></span>)</span> <a href="tarski.html#R1">c=</a> <span class="p1">(<span class="default"><a href="relat_1.html#K6">id</a> <span class="p2">(<span class="default">the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p3">(<span class="default"><a href="relat_1.html#K2">rng</a> the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font></span>)</span></span>)</span></span>)</span> <a href="relat_1.html#K5">*</a> <span class="p1">(<span class="default">the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p2">(<span class="default"><a href="relat_1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font></span>)</span></span>)</span>
 
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="36_1"><b>proof </b></a><div class="add">

<a NAME="E1:36_1"/>
for <font color="Olive">x</font>, <font color="Olive">y</font> being   <a href="hidden.html#M1">set</a>   st <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">x</font>,<font color="Olive">y</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p1">(<span class="default"><a href="relat_1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font></span>)</span> holds <br/><span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">x</font>,<font color="Olive">y</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">(<span class="default"><a href="relat_1.html#K6">id</a> <span class="p2">(<span class="default">the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p3">(<span class="default"><a href="relat_1.html#K2">rng</a> the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font></span>)</span></span>)</span></span>)</span> <a href="relat_1.html#K5">*</a> <span class="p1">(<span class="default">the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p2">(<span class="default"><a href="relat_1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font></span>)</span></span>)</span>
 
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="36_1_1"><b>proof </b></a><div class="add">

<b>let </b><font color="Maroon">x</font> be    <a href="hidden.html#M1">set</a> ;<br/><b>let </b><font color="Maroon">y</font> be    <a href="hidden.html#M1">set</a> ;<br/>



<b>assume </b><a NAME="E1:36_1_1"/><i><font color="Green">E22</font></i>: 
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p1">(<span class="default"><a href="relat_1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font></span>)</span>
 ;<br/>

<a NAME="E2:36_1_1"/><b>then </b>
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font>
 
<b>by </b><i><a class="ref" href="xboole_0.html#D4">XBOOLE_0:def 4</a></i>;<br/>
<a NAME="E3:36_1_1"/><b>then </b><i><font color="Green">E32</font></i>: 
( <font color="Maroon">x</font> <a href="hidden.html#R2">in</a>  <a href="relat_1.html#K1">dom</a> the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font> &amp;  <a href="relat_1.html#K1">dom</a> the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font> <a href="tarski.html#R1">c=</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font> )
 
<b>by </b><i>, <a class="ref" href="relat_1.html#D4">RELAT_1:def 4</a></i>;<br/>
<a NAME="E4:36_1_1"/>
not <font color="Maroon">x</font> <a href="hidden.html#R2">in</a>  <a href="relat_1.html#K2">rng</a> the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font>
 
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="36_1_1_1"><b>proof </b></a><div class="add">

<b>assume </b><a NAME="E1:36_1_1_1"/>
<font color="Maroon">x</font> <a href="hidden.html#R2">in</a>  <a href="relat_1.html#K2">rng</a> the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font>
 ;<br/>

<b>then consider </b><font color="Maroon">z</font> being    <a href="hidden.html#M1">set</a> <b> such that </b><br/><a NAME="E3:36_1_1_1"/><i><font color="Green">E33</font></i>: 
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">z</font>,<font color="Maroon">x</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font>
 <b>by </b><i><a class="ref" href="relat_1.html#D5">RELAT_1:def 5</a></i>;<br/>
<a NAME="E4:36_1_1_1"/>
the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font> <a href="relat_1.html#K5">*</a> <span class="p1">(<span class="default">the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p2">(<span class="default"><a href="relat_1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font></span>)</span></span>)</span> <a href="hidden.html#NR2" target="_self">&lt;&gt;</a>  <a href="xboole_0.html#K1">{}</a> 
 
<b>by </b><i><a class="txt" href="e_siec.html#E1:36"><i><font color="Green">E16</font></i></a>, , <a class="ref" href="relat_1.html#D8">RELAT_1:def 8</a></i>;<br/>
<b>hence </b><a NAME="E5:36_1_1_1"/>
contradiction
 <b>by </b><i/>;<br/>


</div><b>end;</b></div>
<a NAME="E5:36_1_1"/><b>then </b>
<font color="Maroon">x</font> <a href="hidden.html#R2">in</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p1">(<span class="default"><a href="relat_1.html#K2">rng</a> the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font></span>)</span>
 
<b>by </b><i><a class="ref" href="e_siec.html#D3" target="_self">Def3</a>, <a class="ref" href="xboole_0.html#D4">XBOOLE_0:def 4</a></i>;<br/>
<a NAME="E6:36_1_1"/><b>then </b>
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">x</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a>  <a href="relat_1.html#K6">id</a> <span class="p1">(<span class="default">the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p2">(<span class="default"><a href="relat_1.html#K2">rng</a> the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font></span>)</span></span>)</span>
 
<b>by </b><i><a class="ref" href="relat_1.html#D10">RELAT_1:def 10</a></i>;<br/>
<b>hence </b><a NAME="E7:36_1_1"/>
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">(<span class="default"><a href="relat_1.html#K6">id</a> <span class="p2">(<span class="default">the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p3">(<span class="default"><a href="relat_1.html#K2">rng</a> the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font></span>)</span></span>)</span></span>)</span> <a href="relat_1.html#K5">*</a> <span class="p1">(<span class="default">the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p2">(<span class="default"><a href="relat_1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font></span>)</span></span>)</span>
 <b>by </b><i><a class="txt" href="e_siec.html#E1:36"><i><font color="Green">E16</font></i></a>, <a class="ref" href="relat_1.html#D8">RELAT_1:def 8</a></i>;<br/>


</div><b>end;</b></div>
<b>hence </b><a NAME="E2:36_1"/>
the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p1">(<span class="default"><a href="relat_1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font></span>)</span> <a href="tarski.html#R1">c=</a> <span class="p1">(<span class="default"><a href="relat_1.html#K6">id</a> <span class="p2">(<span class="default">the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p3">(<span class="default"><a href="relat_1.html#K2">rng</a> the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font></span>)</span></span>)</span></span>)</span> <a href="relat_1.html#K5">*</a> <span class="p1">(<span class="default">the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p2">(<span class="default"><a href="relat_1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font></span>)</span></span>)</span>
 <b>by </b><i><a class="ref" href="relat_1.html#D3">RELAT_1:def 3</a></i>;<br/>


</div><b>end;</b></div>
<a NAME="E3:36"/><i><font color="Green">E35</font></i>: 
<span class="p1">(<span class="default"><a href="relat_1.html#K6">id</a> <span class="p2">(<span class="default">the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p3">(<span class="default"><a href="relat_1.html#K2">rng</a> the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font></span>)</span></span>)</span></span>)</span> <a href="relat_1.html#K5">*</a> <span class="p1">(<span class="default">the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p2">(<span class="default"><a href="relat_1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font></span>)</span></span>)</span> <a href="tarski.html#R1">c=</a> the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p1">(<span class="default"><a href="relat_1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font></span>)</span>
 
<b>by </b><i><a class="ref" href="relat_1.html#T76">RELAT_1:76</a></i>;<br/>
<a NAME="E4:36"/>
the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p1">(<span class="default"><a href="relat_1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font></span>)</span> <a href="tarski.html#R1">c=</a> <span class="p1">(<span class="default"><a href="relat_1.html#K6">id</a> <span class="p2">(<span class="default">the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p3">(<span class="default"><a href="relat_1.html#K2">rng</a> the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font></span>)</span></span>)</span></span>)</span> <a href="relat_1.html#K5">*</a> <span class="p1">(<span class="default">the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p2">(<span class="default"><a href="relat_1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font></span>)</span></span>)</span>
 
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="36_2"><b>proof </b></a><div class="add">

<a NAME="E1:36_2"/>
for <font color="Olive">x</font>, <font color="Olive">y</font> being   <a href="hidden.html#M1">set</a>   st <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">x</font>,<font color="Olive">y</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p1">(<span class="default"><a href="relat_1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font></span>)</span> holds <br/><span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Olive">x</font>,<font color="Olive">y</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">(<span class="default"><a href="relat_1.html#K6">id</a> <span class="p2">(<span class="default">the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p3">(<span class="default"><a href="relat_1.html#K2">rng</a> the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font></span>)</span></span>)</span></span>)</span> <a href="relat_1.html#K5">*</a> <span class="p1">(<span class="default">the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p2">(<span class="default"><a href="relat_1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font></span>)</span></span>)</span>
 
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="36_2_1"><b>proof </b></a><div class="add">

<b>let </b><font color="Maroon">x</font> be    <a href="hidden.html#M1">set</a> ;<br/><b>let </b><font color="Maroon">y</font> be    <a href="hidden.html#M1">set</a> ;<br/>



<b>assume </b><a NAME="E1:36_2_1"/><i><font color="Green">E36</font></i>: 
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p1">(<span class="default"><a href="relat_1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font></span>)</span>
 ;<br/>

<a NAME="E2:36_2_1"/><b>then </b>
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font>
 
<b>by </b><i><a class="ref" href="xboole_0.html#D4">XBOOLE_0:def 4</a></i>;<br/>
<a NAME="E3:36_2_1"/><b>then </b><i><font color="Green">E37</font></i>: 
( <font color="Maroon">x</font> <a href="hidden.html#R2">in</a>  <a href="relat_1.html#K1">dom</a> the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font> &amp;  <a href="relat_1.html#K1">dom</a> the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font> <a href="tarski.html#R1">c=</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font> )
 
<b>by </b><i>, <a class="ref" href="relat_1.html#D4">RELAT_1:def 4</a></i>;<br/>
<a NAME="E4:36_2_1"/>
not <font color="Maroon">x</font> <a href="hidden.html#R2">in</a>  <a href="relat_1.html#K2">rng</a> the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font>
 
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="36_2_1_1"><b>proof </b></a><div class="add">

<b>assume </b><a NAME="E1:36_2_1_1"/>
<font color="Maroon">x</font> <a href="hidden.html#R2">in</a>  <a href="relat_1.html#K2">rng</a> the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font>
 ;<br/>

<b>then consider </b><font color="Maroon">z</font> being    <a href="hidden.html#M1">set</a> <b> such that </b><br/><a NAME="E3:36_2_1_1"/><i><font color="Green">E38</font></i>: 
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">z</font>,<font color="Maroon">x</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font>
 <b>by </b><i><a class="ref" href="relat_1.html#D5">RELAT_1:def 5</a></i>;<br/>
<a NAME="E4:36_2_1_1"/>
the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font> <a href="relat_1.html#K5">*</a> <span class="p1">(<span class="default">the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p2">(<span class="default"><a href="relat_1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font></span>)</span></span>)</span> <a href="hidden.html#NR2" target="_self">&lt;&gt;</a>  <a href="xboole_0.html#K1">{}</a> 
 
<b>by </b><i><a class="ref" href="e_siec.html#D3" target="_self">Def3</a>, <a class="ref" href="e_siec.html#T2" target="_self">Th2</a>, <a class="ref" href="relat_1.html#D8">RELAT_1:def 8</a></i>;<br/>
<b>hence </b><a NAME="E5:36_2_1_1"/>
contradiction
 <b>by </b><i/>;<br/>


</div><b>end;</b></div>
<a NAME="E5:36_2_1"/><b>then </b>
<font color="Maroon">x</font> <a href="hidden.html#R2">in</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p1">(<span class="default"><a href="relat_1.html#K2">rng</a> the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font></span>)</span>
 
<b>by </b><i>, <a class="ref" href="xboole_0.html#D4">XBOOLE_0:def 4</a></i>;<br/>
<a NAME="E6:36_2_1"/><b>then </b>
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">x</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a>  <a href="relat_1.html#K6">id</a> <span class="p1">(<span class="default">the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p2">(<span class="default"><a href="relat_1.html#K2">rng</a> the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font></span>)</span></span>)</span>
 
<b>by </b><i><a class="ref" href="relat_1.html#D10">RELAT_1:def 10</a></i>;<br/>
<b>hence </b><a NAME="E7:36_2_1"/>
<span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> <span class="p1">(<span class="default"><a href="relat_1.html#K6">id</a> <span class="p2">(<span class="default">the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p3">(<span class="default"><a href="relat_1.html#K2">rng</a> the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font></span>)</span></span>)</span></span>)</span> <a href="relat_1.html#K5">*</a> <span class="p1">(<span class="default">the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p2">(<span class="default"><a href="relat_1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font></span>)</span></span>)</span>
 <b>by </b><i><a class="ref" href="e_siec.html#D3" target="_self">Def3</a>, <a class="ref" href="relat_1.html#D8">RELAT_1:def 8</a></i>;<br/>


</div><b>end;</b></div>
<b>hence </b><a NAME="E2:36_2"/>
the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p1">(<span class="default"><a href="relat_1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font></span>)</span> <a href="tarski.html#R1">c=</a> <span class="p1">(<span class="default"><a href="relat_1.html#K6">id</a> <span class="p2">(<span class="default">the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p3">(<span class="default"><a href="relat_1.html#K2">rng</a> the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font></span>)</span></span>)</span></span>)</span> <a href="relat_1.html#K5">*</a> <span class="p1">(<span class="default">the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p2">(<span class="default"><a href="relat_1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font></span>)</span></span>)</span>
 <b>by </b><i><a class="ref" href="relat_1.html#D3">RELAT_1:def 3</a></i>;<br/>


</div><b>end;</b></div>
<b>hence </b><a NAME="E5:36"/>
( <span class="p1">(<span class="default"><a href="relat_1.html#K6">id</a> <span class="p2">(<span class="default">the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p3">(<span class="default"><a href="relat_1.html#K2">rng</a> the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font></span>)</span></span>)</span></span>)</span> <a href="relat_1.html#K5">*</a> <span class="p1">(<span class="default">the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p2">(<span class="default"><a href="relat_1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font></span>)</span></span>)</span> <a href="hidden.html#R1">=</a> the <a href="e_siec.html#U2" target="_self">escape</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p1">(<span class="default"><a href="relat_1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font></span>)</span> &amp; <span class="p1">(<span class="default"><a href="relat_1.html#K6">id</a> <span class="p2">(<span class="default">the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p3">(<span class="default"><a href="relat_1.html#K2">rng</a> the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font></span>)</span></span>)</span></span>)</span> <a href="relat_1.html#K5">*</a> <span class="p1">(<span class="default">the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p2">(<span class="default"><a href="relat_1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font></span>)</span></span>)</span> <a href="hidden.html#R1">=</a> the <a href="e_siec.html#U1" target="_self">entrance</a> of <font color="Maroon">N</font> <a href="xboole_0.html#K4">\</a> <span class="p1">(<span class="default"><a href="relat_1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">N</font></span>)</span> )
 <b>by </b><i>, <a class="ref" href="e_siec.html#D2" target="_self">Def2</a>, <a class="txt" href="e_siec.html#E1:36"><i><font color="Green">E16</font></i></a>, <a class="ref" href="xboole_0.html#D10">XBOOLE_0:def 10</a></i>;<br/>


</div>
