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<b>let </b><font color="Maroon" title="c1">C</font> be  non <a href="xboole_0.html#V1" title="XBOOLE_0:attr.1">empty</a>  <a href="hidden.html#M1" title="HIDDEN:mode.1">set</a> ;<br/><b>let </b><font color="Maroon" title="c2">f</font>, <font color="Maroon" title="c3">g</font> be    <a href="fuzzy_1.html#M1" title="FUZZY_1:mode.1">Membership_Func</a> of <font color="Maroon" title="c1">C</font>;<br/>





<a NAME="E1:43"/>
(  <a href="fuzzy_1.html#K3" title="FUZZY_1:func.3">1_minus</a> <span class="p1">(<span class="default"><a href="fuzzy_1.html#K3" title="FUZZY_1:func.3">1_minus</a> <font color="Maroon" title="c2">f</font></span>)</span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c2">f</font> &amp;  <a href="fuzzy_1.html#K3" title="FUZZY_1:func.3">1_minus</a> <span class="p1">(<span class="default"><a href="fuzzy_1.html#K3" title="FUZZY_1:func.3">1_minus</a> <font color="Maroon" title="c3">g</font></span>)</span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c3">g</font> )
 
;<br/>
<b>hence </b><a NAME="E2:43"/>
( <font color="Maroon" title="c3">g</font> <a href="fuzzy_1.html#NR2" title="FUZZY_1:NR.2">c=</a>  iff  <a href="fuzzy_1.html#K3" title="FUZZY_1:func.3">1_minus</a> <font color="Maroon" title="c2">f</font> <a href="fuzzy_1.html#NR2" title="FUZZY_1:NR.2">c=</a>  )
 <b>by </b><i><a class="txt" href="fuzzy_1.html#E48"><i><font color="Green" title="E24">Lm2</font></i></a></i>;<br/>


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