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<span class="kw">let </span><font color="Maroon" title="c1">BL</font> be   non  <a href="struct_0.html#V7" title="STRUCT_0:attr.7">trivial</a>  <a href="lattices.html#NM8" title="LATTICES:NM.8">B_Lattice</a>; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> <font color="Maroon" title="c1">BL</font>, <a href="lopclset.html#K12" title="LOPCLSET:func.12">StoneBLattice</a> <font color="Maroon" title="c1">BL</font> <a href="filter_1.html#R1" title="FILTER_1:pred.1">are_isomorphic</a> </span><br/>

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 ex <font color="Olive" title="b1">f</font> being   <a href="lattice4.html#NM1" title="LATTICE4:NM.1">Homomorphism</a> of <font color="Maroon" title="c1">BL</font>,<span class="p1">(<span class="default"><a href="lopclset.html#K12" title="LOPCLSET:func.12">StoneBLattice</a> <font color="Maroon" title="c1">BL</font></span>)</span> st <br/>( <font color="Olive" title="b1">f</font> <a href="funct_2.html#R2" title="FUNCT_2:pred.2">=</a>  <a href="lopclset.html#K13" title="LOPCLSET:func.13">UFilter</a> <font color="Maroon" title="c1">BL</font> &amp; <font color="Olive" title="b1">f</font> is  <a href="funct_2.html#V3" title="FUNCT_2:attr.3">bijective</a>  )
 
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<span class="kw">hence </span><a NAME="E2:44"/>
<font color="Maroon" title="c1">BL</font>, <a href="lopclset.html#K12" title="LOPCLSET:func.12">StoneBLattice</a> <font color="Maroon" title="c1">BL</font> <a href="filter_1.html#R1" title="FILTER_1:pred.1">are_isomorphic</a> 
 <span class="kw">by</span> <span class="lab"><a class="ref" href="lattice4.html#D3" onmouseover="rs('lattice4/D3')" onmouseout="rh()">LATTICE4:def 3</a></span>; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> verum</span><br/>


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