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<b>let </b><font color="Maroon">L</font> be  <a href="lattice3.html#V4">complete</a> <a href="lattices.html#NM1">Lattice</a>;<br/><b>let </b><font color="Maroon">f</font> be  <a href="quantal1.html#V14">monotone</a> <a href="quantal1.html#NM1">UnOp</a> of <font color="Maroon">L</font>;<br/>



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 ex <font color="Olive">P</font> being non <a href="xboole_0.html#V1">empty</a> <a href="knaster.html#V2" target="_self">with_suprema</a> <a href="knaster.html#V3" target="_self">with_infima</a> <a href="struct_0.html#NM2">Subset</a> of <font color="Maroon">L</font> st <br/>( <font color="Olive">P</font> <a href="hidden.html#R1">=</a> <span class="p1">{<span class="default"> <font color="Olive">x</font> where <font color="Olive">x</font> is   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">L</font> : <font color="Olive">x</font> <a href="abian.html#R2">is_a_fixpoint_of</a> <font color="Maroon">f</font> </span>}</span>  &amp;  <a href="knaster.html#K8" target="_self">FixPoints</a> <font color="Maroon">f</font> <a href="hidden.html#R1">=</a>  <a href="knaster.html#K7" target="_self">latt</a> <font color="Olive">P</font> )
 
<b>by </b><i/>;<br/>
<b>hence </b><a NAME="E2:50"/>
the <a href="struct_0.html#U1">carrier</a> of <span class="p1">(<span class="default"><a href="knaster.html#K8" target="_self">FixPoints</a> <font color="Maroon">f</font></span>)</span> <a href="hidden.html#R1">=</a> <span class="p1">{<span class="default"> <font color="Olive">x</font> where <font color="Olive">x</font> is   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">L</font> : <font color="Olive">x</font> <a href="abian.html#R2">is_a_fixpoint_of</a> <font color="Maroon">f</font> </span>}</span> 
 <b>by </b><i/>;<br/>


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