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<b>let </b><font color="Maroon" title="c2">C</font> be    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of  <a href="coh_sp.html#K3" title="COH_SP:func.3">CSp</a> <font color="Maroon" title="c1">X</font>;<br/>

<a NAME="E1:22_1_1"/>
<font color="Maroon" title="c2">C</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <span class="p1">{<span class="default"> <font color="Olive" title="b1">x</font> where <font color="Olive" title="b1">x</font> is   <a href="setfam_1.html#NM1" title="SETFAM_1:NM.1">Subset-Family</a> of <font color="Maroon" title="c1">X</font> : <font color="Olive" title="b1">x</font> is   <a href="coh_sp.html#NM1" title="COH_SP:NM.1">Coherence_Space</a> </span>}</span> 
 
;<br/>
<b>then consider </b><font color="Maroon" title="c3">x</font> being   <a href="setfam_1.html#NM1" title="SETFAM_1:NM.1">Subset-Family</a> of <font color="Maroon" title="c1">X</font><b> such that </b><br/><a NAME="E3:22_1_1"/><i><font color="Green" title="E10">A1</font></i>: 
( <font color="Maroon" title="c2">C</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c3">x</font> &amp; <font color="Maroon" title="c3">x</font> is   <a href="coh_sp.html#NM1" title="COH_SP:NM.1">Coherence_Space</a> )
 ;<br/>
<b>thus </b><a NAME="E4:22_1_1"/>
( <font color="Maroon" title="c2">C</font> is <a href="classes1.html#V1" title="CLASSES1:attr.1">subset-closed</a> &amp; <font color="Maroon" title="c2">C</font> is <a href="coh_sp.html#V1" title="COH_SP:attr.1">binary_complete</a> &amp; not <font color="Maroon" title="c2">C</font> is <a href="xboole_0.html#V1" title="XBOOLE_0:attr.1">empty</a> )
 <b>by </b><i><a class="txt" href="coh_sp.html#E3:22_1_1"><i><font color="Green" title="E10">A1</font></i></a></i>;<br/>


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