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<b>take </b><font color="Maroon">Z</font> =  <a href="pre_topc.html#K2">[#]</a> <font color="Maroon">X</font>;<br/>

<a NAME="E1:2_1_1"/>
 <a href="tops_1.html#K1">Int</a> <span class="p1">(<span class="default"><a href="pre_topc.html#K2">[#]</a> <font color="Maroon">X</font></span>)</span> <a href="hidden.html#R1">=</a>  <a href="pre_topc.html#K2">[#]</a> <font color="Maroon">X</font>
 
<b>by </b><i><a class="ref" href="tops_1.html#T43">TOPS_1:43</a></i>;<br/>
<b>hence </b><a NAME="E2:2_1_1"/>
<font color="Maroon">A</font> <a href="tarski.html#R1">c=</a>  <a href="tops_1.html#K1">Int</a> <font color="Maroon">Z</font>
 ;<br/>


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