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<b>let </b><font color="Maroon">A</font> be  non <a href="xboole_0.html#V1">empty</a>  <a href="hidden.html#M1">set</a> ;<br/>

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for <font color="Olive">p</font>, <font color="Olive">q</font>, <font color="Olive">r</font> being  <a href="struct_0.html#NM1">Element</a> of <span class="p1">(<span class="default"><a href="real_lat.html#K7" target="_self">RealFunc_Lattice</a> <font color="Maroon">A</font></span>)</span> holds  <font color="Olive">p</font> <a href="lattices.html#K4">"/\"</a> <span class="p1">(<span class="default"><font color="Olive">q</font> <a href="lattices.html#K3">"\/"</a> <font color="Olive">r</font></span>)</span> <a href="hidden.html#R1">=</a> <span class="p1">(<span class="default"><font color="Olive">p</font> <a href="lattices.html#K4">"/\"</a> <font color="Olive">q</font></span>)</span> <a href="lattices.html#K3">"\/"</a> <span class="p1">(<span class="default"><font color="Olive">p</font> <a href="lattices.html#K4">"/\"</a> <font color="Olive">r</font></span>)</span>
 
<b>by </b><i/>;<br/>
<b>hence </b><a NAME="E2:44"/>
 <a href="real_lat.html#K7" target="_self">RealFunc_Lattice</a> <font color="Maroon">A</font> is   <a href="lattices.html#NM2">D_Lattice</a>
 <b>by </b><i><a class="ref" href="lattices.html#D11">LATTICES:def 11</a></i>;<br/>


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