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

<b>let </b><font color="Maroon" title="c1">A</font> be    <a href="hidden.html#M1" title="HIDDEN:mode.1">set</a> ;<br/>

<b>set </b><font color="Maroon" title="c2">sd</font> = <span class="p1">(<span class="default"><a href="heyting1.html#K9" title="HEYTING1:func.9">StrongImpl</a> <font color="Maroon" title="c1">A</font></span>)</span> <a href="funcop_1.html#K9" title="FUNCOP_1:func.9">[:]</a> <span class="p1">(<span class="default"><a href="heyting1.html#K11" title="HEYTING1:func.11">diff</a> <span class="p2">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p3">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p2">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span>;<br/>
<b>set </b><font color="Maroon" title="c3">F</font> = <font color="Maroon">H<sub>2</sub></font>(<font color="Maroon" title="c1">A</font>) <a href="funcop_1.html#K6" title="FUNCOP_1:func.6">.:</a> <span class="p1">(<span class="default"><a href="heyting1.html#K8" title="HEYTING1:func.8">pseudo_compl</a> <font color="Maroon" title="c1">A</font></span>)</span>,<span class="p1">(<span class="default"><span class="p2">(<span class="default"><a href="heyting1.html#K9" title="HEYTING1:func.9">StrongImpl</a> <font color="Maroon" title="c1">A</font></span>)</span> <a href="funcop_1.html#K9" title="FUNCOP_1:func.9">[:]</a> <span class="p2">(<span class="default"><a href="heyting1.html#K11" title="HEYTING1:func.11">diff</a> <span class="p3">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p4">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span></span>)</span>,<span class="p2">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p3">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span></span>)</span>;<br/>
<a NAME="E1:47"/><i><font color="Green" title="E42">A1</font></i>: 
 <a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p1">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="xboole_0.html#K1" title="XBOOLE_0:func.1">{}</a> 
 
<b>by </b><i><a class="ref" href="normform.html#T86" title="NORMFORM:th.86">NORMFORM:86</a></i>;<br/>
<a NAME="E2:47"/><i><font color="Green" title="E43">A2</font></i>: 
( <font color="Maroon">H<sub>1</sub></font>(<font color="Maroon" title="c1">A</font>) is <a href="binop_1.html#V1" title="BINOP_1:attr.1">commutative</a> &amp; <font color="Maroon">H<sub>1</sub></font>(<font color="Maroon" title="c1">A</font>) is <a href="binop_1.html#V2" title="BINOP_1:attr.2">associative</a> )
 
<b>by </b><i><a class="ref" href="lattice2.html#T27" title="LATTICE2:th.27">LATTICE2:27</a>, <a class="ref" href="lattice2.html#T29" title="LATTICE2:th.29">LATTICE2:29</a></i>;<br/>
<i><font color="Green" title="E44">A3</font></i>: <span class="p1">(<span class="default"><a href="heyting1.html#K11" title="HEYTING1:func.11">diff</a> <span class="p2">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p3">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span></span>)</span> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <span class="p1">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p2">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span> = 
<a href="xboole_0.html#K1" title="XBOOLE_0:func.1">{}</a>  <a href="subset_1.html#K6" title="SUBSET_1:func.6">\</a> <a href="xboole_0.html#K1" title="XBOOLE_0:func.1">{}</a> 
<b>by </b><i><a class="txt" href="heyting1.html#E1:47"><i><font color="Green" title="E42">A1</font></i></a>, <a class="ref" href="heyting1.html#D11" target="_self" title="HEYTING1:def.11">Def11</a></i>
<br/>.= 
 <a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p1">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span>
<b>by </b><i><a class="ref" href="normform.html#T86" title="NORMFORM:th.86">NORMFORM:86</a></i>
;<br/>
<b>reconsider </b><font color="Maroon" title="c4">O</font> = <span class="p1"><a href="tarski.html#K1" title="TARSKI:func.1">{</a><span class="default"><span class="p2"><a href="tarski.html#K4" title="TARSKI:func.4">[</a><span class="default"><a href="xboole_0.html#K1" title="XBOOLE_0:func.1">{}</a> ,<a href="xboole_0.html#K1" title="XBOOLE_0:func.1">{}</a> </span><a href="tarski.html#K4" title="TARSKI:func.4">]</a></span></span><a href="tarski.html#K1" title="TARSKI:func.1">}</a></span> as    <a href="subset_1.html#M2" title="SUBSET_1:mode.2">Element</a> of  <a href="normform.html#K8" title="NORMFORM:func.8">Normal_forms_on</a> <font color="Maroon" title="c1">A</font> <b>by </b><i><a class="ref" href="heyting1.html#T22" target="_self" title="HEYTING1:th.22">Th22</a></i>;<br/>
<i><font color="Green" title="E45">A4</font></i>:  <a href="heyting1.html#K3" title="HEYTING1:func.3">@</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><a href="heyting1.html#K8" title="HEYTING1:func.8">pseudo_compl</a> <font color="Maroon" title="c1">A</font></span>)</span> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <span class="p2">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p3">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span></span>)</span> = 
 <a href="normform.html#K9" title="NORMFORM:func.9">mi</a> <span class="p1">(<span class="default"><a href="heyting1.html#K6" title="HEYTING1:func.6">-</a> <span class="p2">(<span class="default"><a href="heyting1.html#K3" title="HEYTING1:func.3">@</a> <span class="p3">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p4">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span></span>)</span></span>)</span>
<b>by </b><i><a class="ref" href="heyting1.html#D8" target="_self" title="HEYTING1:def.8">Def8</a></i>
<br/>.= 
 <a href="normform.html#K9" title="NORMFORM:func.9">mi</a> <font color="Maroon" title="c4">O</font>
<b>by </b><i><a class="ref" href="heyting1.html#T18" target="_self" title="HEYTING1:th.18">Th18</a>, <a class="ref" href="normform.html#T86" title="NORMFORM:th.86">NORMFORM:86</a></i>
<br/>.= 
<font color="Maroon" title="c4">O</font>
<b>by </b><i><a class="ref" href="normform.html#T66" title="NORMFORM:th.66">NORMFORM:66</a></i>
;<br/>
<i><font color="Green" title="E46">A5</font></i>:  <a href="heyting1.html#K3" title="HEYTING1:func.3">@</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="heyting1.html#K9" title="HEYTING1:func.9">StrongImpl</a> <font color="Maroon" title="c1">A</font></span>)</span> <a href="funcop_1.html#K9" title="FUNCOP_1:func.9">[:]</a> <span class="p3">(<span class="default"><a href="heyting1.html#K11" title="HEYTING1:func.11">diff</a> <span class="p4">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p5">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span></span>)</span>,<span class="p3">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p4">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span></span>)</span> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <span class="p2">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p3">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span></span>)</span> = 
<span class="p1">(<span class="default"><a href="heyting1.html#K9" title="HEYTING1:func.9">StrongImpl</a> <font color="Maroon" title="c1">A</font></span>)</span> <a href="binop_1.html#K4" title="BINOP_1:func.4">.</a> <span class="p1">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p2">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p2">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span>
<b>by </b><i><a class="txt" href="heyting1.html#E3:47"><i><font color="Green" title="E44">A3</font></i></a>, <a class="ref" href="funcop_1.html#T60" title="FUNCOP_1:th.60">FUNCOP_1:60</a></i>
<br/>.= 
 <a href="normform.html#K9" title="NORMFORM:func.9">mi</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><a href="heyting1.html#K3" title="HEYTING1:func.3">@</a> <span class="p3">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p4">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span></span>)</span> <a href="heyting1.html#K7" title="HEYTING1:func.7">=&gt;&gt;</a> <span class="p2">(<span class="default"><a href="heyting1.html#K3" title="HEYTING1:func.3">@</a> <span class="p3">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p4">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span></span>)</span></span>)</span>
<b>by </b><i><a class="ref" href="heyting1.html#D9" target="_self" title="HEYTING1:def.9">Def9</a></i>
<br/>.= 
 <a href="normform.html#K9" title="NORMFORM:func.9">mi</a> <font color="Maroon" title="c4">O</font>
<b>by </b><i><a class="txt" href="heyting1.html#E1:47"><i><font color="Green" title="E42">A1</font></i></a>, <a class="ref" href="heyting1.html#T19" target="_self" title="HEYTING1:th.19">Th19</a></i>
<br/>.= 
<font color="Maroon" title="c4">O</font>
<b>by </b><i><a class="ref" href="normform.html#T66" title="NORMFORM:th.66">NORMFORM:66</a></i>
;<br/>
<b>thus </b> <a href="lattices.html#K6" title="LATTICES:func.6">Top</a> <span class="p1">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span> = 
<span class="p1">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p2">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span> <a href="filter_0.html#K4" title="FILTER_0:func.4">=&gt;</a> <span class="p1">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p2">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span>
<b>by </b><i><a class="ref" href="filter_0.html#T38" title="FILTER_0:th.38">FILTER_0:38</a></i>
<br/>.= 
 <a href="lattice2.html#K2" title="LATTICE2:func.2">FinJoin</a> <span class="p1">(<span class="default"><a href="heyting1.html#K10" title="HEYTING1:func.10">SUB</a> <span class="p2">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p3">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span></span>)</span>,<span class="p1">(<span class="default"><font color="Maroon">H<sub>2</sub></font>(<font color="Maroon" title="c1">A</font>) <a href="funcop_1.html#K6" title="FUNCOP_1:func.6">.:</a> <span class="p2">(<span class="default"><a href="heyting1.html#K8" title="HEYTING1:func.8">pseudo_compl</a> <font color="Maroon" title="c1">A</font></span>)</span>,<span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="heyting1.html#K9" title="HEYTING1:func.9">StrongImpl</a> <font color="Maroon" title="c1">A</font></span>)</span> <a href="funcop_1.html#K9" title="FUNCOP_1:func.9">[:]</a> <span class="p3">(<span class="default"><a href="heyting1.html#K11" title="HEYTING1:func.11">diff</a> <span class="p4">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p5">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span></span>)</span>,<span class="p3">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p4">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span></span>)</span></span>)</span>
<b>by </b><i><a class="ref" href="heyting1.html#T33" target="_self" title="HEYTING1:th.33">Th33</a></i>
<br/>.= 
<font color="Maroon">H<sub>1</sub></font>(<font color="Maroon" title="c1">A</font>) <a href="setwiseo.html#K7" title="SETWISEO:func.7">$$</a> <span class="p1">(<span class="default"><a href="heyting1.html#K10" title="HEYTING1:func.10">SUB</a> <span class="p2">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p3">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span></span>)</span>,<span class="p1">(<span class="default"><font color="Maroon">H<sub>2</sub></font>(<font color="Maroon" title="c1">A</font>) <a href="funcop_1.html#K6" title="FUNCOP_1:func.6">.:</a> <span class="p2">(<span class="default"><a href="heyting1.html#K8" title="HEYTING1:func.8">pseudo_compl</a> <font color="Maroon" title="c1">A</font></span>)</span>,<span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="heyting1.html#K9" title="HEYTING1:func.9">StrongImpl</a> <font color="Maroon" title="c1">A</font></span>)</span> <a href="funcop_1.html#K9" title="FUNCOP_1:func.9">[:]</a> <span class="p3">(<span class="default"><a href="heyting1.html#K11" title="HEYTING1:func.11">diff</a> <span class="p4">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p5">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span></span>)</span>,<span class="p3">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p4">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span></span>)</span></span>)</span>
<b>by </b><i><a class="ref" href="lattice2.html#D3" title="LATTICE2:def.3">LATTICE2:def 3</a></i>
<br/>.= 
<span class="p1">(<span class="default"><font color="Maroon">H<sub>2</sub></font>(<font color="Maroon" title="c1">A</font>) <a href="funcop_1.html#K6" title="FUNCOP_1:func.6">.:</a> <span class="p2">(<span class="default"><a href="heyting1.html#K8" title="HEYTING1:func.8">pseudo_compl</a> <font color="Maroon" title="c1">A</font></span>)</span>,<span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="heyting1.html#K9" title="HEYTING1:func.9">StrongImpl</a> <font color="Maroon" title="c1">A</font></span>)</span> <a href="funcop_1.html#K9" title="FUNCOP_1:func.9">[:]</a> <span class="p3">(<span class="default"><a href="heyting1.html#K11" title="HEYTING1:func.11">diff</a> <span class="p4">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p5">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span></span>)</span>,<span class="p3">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p4">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span></span>)</span></span>)</span> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <span class="p1">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p2">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span>
<b>by </b><i><a class="txt" href="heyting1.html#E1:47"><i><font color="Green" title="E42">A1</font></i></a>, <a class="txt" href="heyting1.html#E2:47"><i><font color="Green" title="E43">A2</font></i></a>, <a class="ref" href="setwiseo.html#T26" title="SETWISEO:th.26">SETWISEO:26</a>, <a class="ref" href="zfmisc_1.html#T1" title="ZFMISC_1:th.1">ZFMISC_1:1</a></i>
<br/>.= 
<font color="Maroon">H<sub>2</sub></font>(<font color="Maroon" title="c1">A</font>) <a href="binop_1.html#K4" title="BINOP_1:func.4">.</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><a href="heyting1.html#K8" title="HEYTING1:func.8">pseudo_compl</a> <font color="Maroon" title="c1">A</font></span>)</span> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <span class="p2">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p3">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span></span>)</span>,<span class="p1">(<span class="default"><span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="heyting1.html#K9" title="HEYTING1:func.9">StrongImpl</a> <font color="Maroon" title="c1">A</font></span>)</span> <a href="funcop_1.html#K9" title="FUNCOP_1:func.9">[:]</a> <span class="p3">(<span class="default"><a href="heyting1.html#K11" title="HEYTING1:func.11">diff</a> <span class="p4">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p5">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span></span>)</span>,<span class="p3">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p4">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span></span>)</span> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <span class="p2">(<span class="default"><a href="lattices.html#K5" title="LATTICES:func.5">Bottom</a> <span class="p3">(<span class="default"><a href="normform.html#K12" title="NORMFORM:func.12">NormForm</a> <font color="Maroon" title="c1">A</font></span>)</span></span>)</span></span>)</span>
<b>by </b><i><a class="ref" href="funcop_1.html#T48" title="FUNCOP_1:th.48">FUNCOP_1:48</a></i>
<br/>.= 
 <a href="normform.html#K9" title="NORMFORM:func.9">mi</a> <span class="p1">(<span class="default"><font color="Maroon" title="c4">O</font> <a href="normform.html#K10" title="NORMFORM:func.10">^</a> <font color="Maroon" title="c4">O</font></span>)</span>
<b>by </b><i><a class="txt" href="heyting1.html#E5:47"><i><font color="Green" title="E45">A4</font></i></a>, <a class="txt" href="heyting1.html#E6:47"><i><font color="Green" title="E46">A5</font></i></a>, <a class="ref" href="normform.html#D14" title="NORMFORM:def.14">NORMFORM:def 14</a></i>
<br/>.= 
<span class="p1"><a href="tarski.html#K1" title="TARSKI:func.1">{</a><span class="default"><span class="p2"><a href="tarski.html#K4" title="TARSKI:func.4">[</a><span class="default"><a href="xboole_0.html#K1" title="XBOOLE_0:func.1">{}</a> ,<a href="xboole_0.html#K1" title="XBOOLE_0:func.1">{}</a> </span><a href="tarski.html#K4" title="TARSKI:func.4">]</a></span></span><a href="tarski.html#K1" title="TARSKI:func.1">}</a></span>
<b>by </b><i><a class="ref" href="heyting1.html#T7" target="_self" title="HEYTING1:th.7">Th7</a></i>
;<br/>


</div>
