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<b>consider </b><font color="Maroon" title="c3">R</font> being  <a href="pre_topc.html#V1" title="PRE_TOPC:attr.1">strict</a>  <a href="yellow_9.html#M3" title="YELLOW_9:mode.3">Refinement</a> of <font color="Maroon" title="c2">T</font>,<font color="Maroon" title="c1">S</font>;<br/>
<b>take </b>
<font color="Maroon" title="c3">R</font>
;<br/>

<b>thus </b><a NAME="E2:58_2_1"/>
( <font color="Maroon" title="c3">R</font> is <a href="pre_topc.html#V1" title="PRE_TOPC:attr.1">strict</a> &amp; not <font color="Maroon" title="c3">R</font> is <a href="struct_0.html#V3" title="STRUCT_0:attr.3">empty</a> )
 ;<br/>


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