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<b>let </b><font color="Maroon">V</font> be   <a href="rlvect_1.html#NM2">RealLinearSpace</a>;<br/>

<b>reconsider </b><font color="Maroon">S</font> =  <a href="lattices.html#G3">LattStr</a>(# <span class="p1">(<span class="default"><a href="rlsub_2.html#K3" target="_self">Subspaces</a> <font color="Maroon">V</font></span>)</span>,<span class="p1">(<span class="default"><a href="rlsub_2.html#K5" target="_self">SubJoin</a> <font color="Maroon">V</font></span>)</span>,<span class="p1">(<span class="default"><a href="rlsub_2.html#K6" target="_self">SubMeet</a> <font color="Maroon">V</font></span>)</span> #) as   <a href="lattices.html#NM6">01_Lattice</a> <b>by </b><i/>;<br/>
<b>reconsider </b><font color="Maroon">S0</font> = <font color="Maroon">S</font> as   <a href="lattices.html#NM4">0_Lattice</a> ;<br/>
<b>reconsider </b><font color="Maroon">S1</font> = <font color="Maroon">S</font> as   <a href="lattices.html#NM5">1_Lattice</a> ;<br/>
<b>reconsider </b><font color="Maroon">Z</font> =  <a href="rlsub_1.html#K1">(0).</a> <font color="Maroon">V</font>, <font color="Maroon">I</font> =  <a href="rlsub_1.html#K2">(Omega).</a> <font color="Maroon">V</font> as   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">S</font> <b>by </b><i/>;<br/>
<b>reconsider </b><font color="Maroon">Z0</font> = <font color="Maroon">Z</font> as   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">S0</font> ;<br/>
<b>reconsider </b><font color="Maroon">I1</font> = <font color="Maroon">I</font> as   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">S1</font> ;<br/>
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="83_1"><b>now </b></a><div class="add"><b>let </b><font color="Maroon">A</font> be   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">S1</font>;<br/><b>reconsider </b><font color="Maroon">W</font> = <font color="Maroon">A</font> as    <a href="rlsub_1.html#M1">Subspace</a> of <font color="Maroon">V</font> <b>by </b><i/>;<br/><b>thus </b><font color="Maroon">A</font> <a href="lattices.html#K3">"\/"</a> <font color="Maroon">I1</font> = 
<font color="Maroon">W</font> <a href="rlsub_2.html#K1" target="_self">+</a> <span class="p1">(<span class="default"><a href="rlsub_1.html#K2">(Omega).</a> <font color="Maroon">V</font></span>)</span>
<b>by </b><i><a class="ref" href="rlsub_2.html#T10" target="_self">Th10</a></i>
<br/>.= 
 <a href="rlsub_1.html#K2">(Omega).</a> <font color="Maroon">V</font>
<b>by </b><i/>
;<br/></div><b>end;</b></div>
<a NAME="E8:83"/><b>then </b><i><font color="Green">E32</font></i>: 
 <a href="lattices.html#K6">Top</a> <font color="Maroon">S</font> <a href="hidden.html#R1">=</a> <font color="Maroon">I</font>
 
<b>by </b><i/>;<br/>
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="83_2"><b>now </b></a><div class="add"><b>let </b><font color="Maroon">A</font> be   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">S0</font>;<br/><b>reconsider </b><font color="Maroon">W</font> = <font color="Maroon">A</font> as    <a href="rlsub_1.html#M1">Subspace</a> of <font color="Maroon">V</font> <b>by </b><i/>;<br/><b>thus </b><font color="Maroon">A</font> <a href="lattices.html#K4">"/\"</a> <font color="Maroon">Z0</font> = 
<font color="Maroon">W</font> <a href="rlsub_2.html#K2" target="_self">/\</a> <span class="p1">(<span class="default"><a href="rlsub_1.html#K1">(0).</a> <font color="Maroon">V</font></span>)</span>
<b>by </b><i/>
<br/>.= 
<font color="Maroon">Z0</font>
<b>by </b><i/>
;<br/></div><b>end;</b></div>
<a NAME="E10:83"/><b>then </b><i><font color="Green">E35</font></i>: 
 <a href="lattices.html#K5">Bottom</a> <font color="Maroon">S</font> <a href="hidden.html#R1">=</a> <font color="Maroon">Z</font>
 
<b>by </b><i/>;<br/>
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="83_3"><b>now </b></a><div class="add"><b>let </b><font color="Maroon">A</font> be   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">S</font>;<br/><b>reconsider </b><font color="Maroon">W</font> = <font color="Maroon">A</font> as    <a href="rlsub_1.html#M1">Subspace</a> of <font color="Maroon">V</font> <b>by </b><i/>;<br/><b>consider </b><font color="Maroon">L</font> being  <a href="rlvect_1.html#V2">strict</a>  <a href="rlsub_2.html#M1" target="_self">Linear_Compl</a> of <font color="Maroon">W</font>;<br/><b>reconsider </b><font color="Maroon">B'</font> = <font color="Maroon">L</font> as   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">S</font> <b>by </b><i/>;<br/><b>take </b><font color="Maroon">B</font> = <font color="Maroon">B'</font>;<br/><i><font color="Green">E36</font></i>: <font color="Maroon">B</font> <a href="lattices.html#K3">"\/"</a> <font color="Maroon">A</font> = 
<font color="Maroon">L</font> <a href="rlsub_2.html#K1" target="_self">+</a> <font color="Maroon">W</font>
<b>by </b><i><a class="ref" href="rlsub_2.html#T10" target="_self">Th10</a></i>
<br/>.= 
 <a href="lattices.html#K6">Top</a> <font color="Maroon">S</font>
<b>by </b><i>, </i>
;<br/><font color="Maroon">B</font> <a href="lattices.html#K4">"/\"</a> <font color="Maroon">A</font> = 
<font color="Maroon">L</font> <a href="rlsub_2.html#K2" target="_self">/\</a> <font color="Maroon">W</font>
<b>by </b><i/>
<br/>.= 
 <a href="lattices.html#K5">Bottom</a> <font color="Maroon">S</font>
<b>by </b><i>, </i>
;<br/><b>hence </b><a NAME="E6:83_3"/>
<font color="Maroon">B</font> <a href="lattices.html#R2">is_a_complement_of</a> <font color="Maroon">A</font>
 <b>by </b><i><a class="ref" href="rlsub_2.html#T11" target="_self">Th11</a>, </i>;<br/></div><b>end;</b></div>
<b>hence </b><a NAME="E12:83"/>
 <a href="lattices.html#G3">LattStr</a>(# <span class="p1">(<span class="default"><a href="rlsub_2.html#K3" target="_self">Subspaces</a> <font color="Maroon">V</font></span>)</span>,<span class="p1">(<span class="default"><a href="rlsub_2.html#K5" target="_self">SubJoin</a> <font color="Maroon">V</font></span>)</span>,<span class="p1">(<span class="default"><a href="rlsub_2.html#K6" target="_self">SubMeet</a> <font color="Maroon">V</font></span>)</span> #) is <a href="lattices.html#V16">complemented</a>
 <b>by </b><i><a class="ref" href="lattices.html#D19">LATTICES:def 19</a></i>;<br/>


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