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<b>let </b><font color="Maroon" title="c1">C</font> be   <a href="coh_sp.html#NM1" title="COH_SP:NM.1">Coherence_Space</a>;<br/><b>let </b><font color="Maroon" title="c2">A</font> be   <a href="subset_1.html#NM2" title="SUBSET_1:NM.2">Subset</a> of <font color="Maroon" title="c1">C</font>; <i><font color="Red">:: according to </font></i><a class="ref" href="cohsp_1.html#D7" target="_self" title="COHSP_1:def.7">COHSP_1:def 7</a><br/>



<b>thus </b><a NAME="E1:34_1_1"/>
( <font color="Maroon" title="c2">A</font> is <a href="cohsp_1.html#V1" title="COHSP_1:attr.1">c=directed</a> implies  <a href="tarski.html#K3" title="TARSKI:func.3">union</a> <font color="Maroon" title="c2">A</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <font color="Maroon" title="c1">C</font> )
 <b>by </b><i><a class="ref" href="cohsp_1.html#T15" target="_self" title="COHSP_1:th.15">Th15</a></i>;<br/>


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