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

<b>let </b><font color="Maroon">Q</font> be   <a href="quantal1.html#NM2">Quantale</a>;<br/><b>let </b><font color="Maroon">c</font> be   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">Q</font>;<br/>



<b>thus </b><a NAME="E1:44"/>
( <font color="Maroon">c</font> is <a href="quantal1.html#V18" target="_self">cyclic</a> implies for <font color="Olive">a</font>, <font color="Olive">b</font> being  <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">Q</font>  st <font color="Olive">a</font> <a href="monoid_0.html#NK3" target="_self">[*]</a> <font color="Olive">b</font> <a href="lattices.html#R3">[=</a> <font color="Maroon">c</font> holds <br/><font color="Olive">b</font> <a href="monoid_0.html#NK3" target="_self">[*]</a> <font color="Olive">a</font> <a href="lattices.html#R3">[=</a> <font color="Maroon">c</font> )
 <div><a class="txt" onclick="hs2(this)" href="javascript:()" title="44_1"><b>proof </b></a><div class="add">

<b>assume </b><a NAME="E1:44_1"/><i><font color="Green">E26</font></i>: 
for <font color="Olive">a</font> being  <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">Q</font> holds  <font color="Olive">a</font> <a href="quantal1.html#K1" target="_self">-r&gt;</a> <font color="Maroon">c</font> <a href="hidden.html#R1">=</a> <font color="Olive">a</font> <a href="quantal1.html#K2" target="_self">-l&gt;</a> <font color="Maroon">c</font>
 ; <i><font color="Red">:: according to </font></i><a class="ref" href="quantal1.html#D18" target="_self">QUANTAL1:def 18</a><br/>

<b>let </b><font color="Maroon">a</font> be   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">Q</font>;<br/><b>let </b><font color="Maroon">b</font> be   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">Q</font>;<br/>



<b>assume </b><a NAME="E2:44_1"/>
<font color="Maroon">a</font> <a href="monoid_0.html#NK3" target="_self">[*]</a> <font color="Maroon">b</font> <a href="lattices.html#R3">[=</a> <font color="Maroon">c</font>
 ;<br/>

<a NAME="E3:44_1"/><b>then </b>
<font color="Maroon">a</font> <a href="lattices.html#R3">[=</a> <font color="Maroon">b</font> <a href="quantal1.html#K1" target="_self">-r&gt;</a> <font color="Maroon">c</font>
 
<b>by </b><i/>;<br/>
<a NAME="E4:44_1"/><b>then </b>
<font color="Maroon">a</font> <a href="lattices.html#R3">[=</a> <font color="Maroon">b</font> <a href="quantal1.html#K2" target="_self">-l&gt;</a> <font color="Maroon">c</font>
 
<b>by </b><i/>;<br/>
<b>hence </b><a NAME="E5:44_1"/>
<font color="Maroon">b</font> <a href="monoid_0.html#NK3" target="_self">[*]</a> <font color="Maroon">a</font> <a href="lattices.html#R3">[=</a> <font color="Maroon">c</font>
 <b>by </b><i/>;<br/>


</div><b>end;</b></div>

<b>assume </b><a NAME="E2:44"/><i><font color="Green">E27</font></i>: 
for <font color="Olive">a</font>, <font color="Olive">b</font> being  <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">Q</font>  st <font color="Olive">a</font> <a href="monoid_0.html#NK3" target="_self">[*]</a> <font color="Olive">b</font> <a href="lattices.html#R3">[=</a> <font color="Maroon">c</font> holds <br/><font color="Olive">b</font> <a href="monoid_0.html#NK3" target="_self">[*]</a> <font color="Olive">a</font> <a href="lattices.html#R3">[=</a> <font color="Maroon">c</font>
 ;<br/>

<b>let </b><font color="Maroon">a</font> be   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">Q</font>; <i><font color="Red">:: according to </font></i><a class="ref" href="quantal1.html#D18" target="_self">QUANTAL1:def 18</a><br/>

<b>set </b><font color="Maroon">X1</font> = <span class="p1">{<span class="default"> <font color="Olive">d1</font> where <font color="Olive">d1</font> is   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">Q</font> : <font color="Olive">d1</font> <a href="monoid_0.html#NK3" target="_self">[*]</a> <font color="Maroon">a</font> <a href="lattices.html#R3">[=</a> <font color="Maroon">c</font> </span>}</span> ;<br/>
<b>set </b><font color="Maroon">X2</font> = <span class="p1">{<span class="default"> <font color="Olive">d2</font> where <font color="Olive">d2</font> is   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">Q</font> : <font color="Maroon">a</font> <a href="monoid_0.html#NK3" target="_self">[*]</a> <font color="Olive">d2</font> <a href="lattices.html#R3">[=</a> <font color="Maroon">c</font> </span>}</span> ;<br/>
<a NAME="E3:44"/>
<span class="p1">{<span class="default"> <font color="Olive">d1</font> where <font color="Olive">d1</font> is   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">Q</font> : <font color="Olive">d1</font> <a href="monoid_0.html#NK3" target="_self">[*]</a> <font color="Maroon">a</font> <a href="lattices.html#R3">[=</a> <font color="Maroon">c</font> </span>}</span>  <a href="hidden.html#R1">=</a> <span class="p1">{<span class="default"> <font color="Olive">d2</font> where <font color="Olive">d2</font> is   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">Q</font> : <font color="Maroon">a</font> <a href="monoid_0.html#NK3" target="_self">[*]</a> <font color="Olive">d2</font> <a href="lattices.html#R3">[=</a> <font color="Maroon">c</font> </span>}</span> 
 
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="44_2"><b>proof </b></a><div class="add">

<b>thus </b><a NAME="E1:44_2"/>
<span class="p1">{<span class="default"> <font color="Olive">d1</font> where <font color="Olive">d1</font> is   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">Q</font> : <font color="Olive">d1</font> <a href="monoid_0.html#NK3" target="_self">[*]</a> <font color="Maroon">a</font> <a href="lattices.html#R3">[=</a> <font color="Maroon">c</font> </span>}</span>  <a href="tarski.html#R1">c=</a> <span class="p1">{<span class="default"> <font color="Olive">d2</font> where <font color="Olive">d2</font> is   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">Q</font> : <font color="Maroon">a</font> <a href="monoid_0.html#NK3" target="_self">[*]</a> <font color="Olive">d2</font> <a href="lattices.html#R3">[=</a> <font color="Maroon">c</font> </span>}</span> 
  <i><font color="Red">:: according to </font></i><a class="ref" href="xboole_0.html#D10">XBOOLE_0:def 10</a><div><a class="txt" onclick="hs2(this)" href="javascript:()" title="44_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> ; <i><font color="Red">:: according to </font></i><a class="ref" href="tarski.html#D3">TARSKI:def 3</a><br/>

<b>assume </b><a NAME="E1:44_2_1"/>
<font color="Maroon">x</font> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <font color="Olive">d1</font> where <font color="Olive">d1</font> is   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">Q</font> : <font color="Olive">d1</font> <a href="monoid_0.html#NK3" target="_self">[*]</a> <font color="Maroon">a</font> <a href="lattices.html#R3">[=</a> <font color="Maroon">c</font> </span>}</span> 
 ;<br/>

<b>then consider </b><font color="Maroon">d</font> being   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">Q</font><b> such that </b><br/><a NAME="E3:44_2_1"/><i><font color="Green">E28</font></i>: 
( <font color="Maroon">x</font> <a href="hidden.html#R1">=</a> <font color="Maroon">d</font> &amp; <font color="Maroon">d</font> <a href="monoid_0.html#NK3" target="_self">[*]</a> <font color="Maroon">a</font> <a href="lattices.html#R3">[=</a> <font color="Maroon">c</font> )
 ;<br/>
<a NAME="E4:44_2_1"/>
<font color="Maroon">a</font> <a href="monoid_0.html#NK3" target="_self">[*]</a> <font color="Maroon">d</font> <a href="lattices.html#R3">[=</a> <font color="Maroon">c</font>
 
<b>by </b><i>, </i>;<br/>
<b>hence </b><a NAME="E5:44_2_1"/>
<font color="Maroon">x</font> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <font color="Olive">d2</font> where <font color="Olive">d2</font> is   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">Q</font> : <font color="Maroon">a</font> <a href="monoid_0.html#NK3" target="_self">[*]</a> <font color="Olive">d2</font> <a href="lattices.html#R3">[=</a> <font color="Maroon">c</font> </span>}</span> 
 <b>by </b><i/>;<br/>


</div><b>end;</b></div>

<b>let </b><font color="Maroon">x</font> be    <a href="hidden.html#M1">set</a> ; <i><font color="Red">:: according to </font></i><a class="ref" href="tarski.html#D3">TARSKI:def 3</a><br/>

<b>assume </b><a NAME="E2:44_2"/>
<font color="Maroon">x</font> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <font color="Olive">d2</font> where <font color="Olive">d2</font> is   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">Q</font> : <font color="Maroon">a</font> <a href="monoid_0.html#NK3" target="_self">[*]</a> <font color="Olive">d2</font> <a href="lattices.html#R3">[=</a> <font color="Maroon">c</font> </span>}</span> 
 ;<br/>

<b>then consider </b><font color="Maroon">d</font> being   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">Q</font><b> such that </b><br/><a NAME="E4:44_2"/><i><font color="Green">E46</font></i>: 
( <font color="Maroon">x</font> <a href="hidden.html#R1">=</a> <font color="Maroon">d</font> &amp; <font color="Maroon">a</font> <a href="monoid_0.html#NK3" target="_self">[*]</a> <font color="Maroon">d</font> <a href="lattices.html#R3">[=</a> <font color="Maroon">c</font> )
 ;<br/>
<a NAME="E5:44_2"/>
<font color="Maroon">d</font> <a href="monoid_0.html#NK3" target="_self">[*]</a> <font color="Maroon">a</font> <a href="lattices.html#R3">[=</a> <font color="Maroon">c</font>
 
<b>by </b><i>, </i>;<br/>
<b>hence </b><a NAME="E6:44_2"/>
<font color="Maroon">x</font> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <font color="Olive">d1</font> where <font color="Olive">d1</font> is   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">Q</font> : <font color="Olive">d1</font> <a href="monoid_0.html#NK3" target="_self">[*]</a> <font color="Maroon">a</font> <a href="lattices.html#R3">[=</a> <font color="Maroon">c</font> </span>}</span> 
 <b>by </b><i/>;<br/>


</div><b>end;</b></div>
<b>hence </b><a NAME="E4:44"/>
<font color="Maroon">a</font> <a href="quantal1.html#K1" target="_self">-r&gt;</a> <font color="Maroon">c</font> <a href="hidden.html#R1">=</a> <font color="Maroon">a</font> <a href="quantal1.html#K2" target="_self">-l&gt;</a> <font color="Maroon">c</font>
 ;<br/>


</div>
