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<b>consider </b><font color="Maroon">c<sub>1</sub></font> being   <a href="pre_topc.html#NM1">TopSpace</a>;<br/>
<b>take </b>
<font color="Maroon">c<sub>1</sub></font> <a href="pre_topc.html#K3">|</a> <span class="p1">(<span class="default"><a href="pre_topc.html#K1">{}</a> <font color="Maroon">c<sub>1</sub></font></span>)</span>
;<br/>

<b>thus </b><a NAME="E2:11_1_1"/>
( <font color="Maroon">c<sub>1</sub></font> <a href="pre_topc.html#K3">|</a> <span class="p1">(<span class="default"><a href="pre_topc.html#K1">{}</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> is <a href="pre_topc.html#V1">strict</a> &amp; <font color="Maroon">c<sub>1</sub></font> <a href="pre_topc.html#K3">|</a> <span class="p1">(<span class="default"><a href="pre_topc.html#K1">{}</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> is <a href="struct_0.html#V3">empty</a> )
 ;<br/>


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