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<a NAME="E1:6_1_1"/><i><font color="Green" title="E1">X</font></i>: 
 <a href="funct_5.html#K9" title="FUNCT_5:func.9">op2</a>  is   <a href="funct_2.html#NM1" title="FUNCT_2:NM.1">Function</a> of <span class="p1"><a href="zfmisc_1.html#K2" title="ZFMISC_1:func.2">[:</a><span class="default">1,1</span><a href="zfmisc_1.html#K2" title="ZFMISC_1:func.2">:]</a></span>,1
 
;<br/>
<a NAME="E2:6_1_1"/>
 <a href="numbers.html#K6" title="NUMBERS:func.6">0</a>  <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a>  <a href="numbers.html#K1" title="NUMBERS:func.1">REAL</a> 
 
;<br/>
<a NAME="E3:6_1_1"/><b>then </b>
1 <a href="tarski.html#R1" title="TARSKI:pred.1">c=</a>  <a href="numbers.html#K1" title="NUMBERS:func.1">REAL</a> 
 
<b>by </b><i><a class="ref" href="zfmisc_1.html#T37" title="ZFMISC_1:th.37">ZFMISC_1:37</a>, <a class="ref" href="card_1.html#T87" title="CARD_1:th.87">CARD_1:87</a></i>;<br/>
<b>hence </b><a NAME="E4:6_1_1"/>
 <a href="metric_1.html#NK3" title="METRIC_1:NK.3">Empty^2-to-zero</a>  is   <a href="funct_2.html#NM1" title="FUNCT_2:NM.1">Function</a> of <span class="p1"><a href="zfmisc_1.html#K2" title="ZFMISC_1:func.2">[:</a><span class="default">1,1</span><a href="zfmisc_1.html#K2" title="ZFMISC_1:func.2">:]</a></span>, <a href="numbers.html#K1" title="NUMBERS:func.1">REAL</a> 
 <b>by </b><i><a class="ref" href="funct_2.html#T9" title="FUNCT_2:th.9">FUNCT_2:9</a>, <a class="txt" href="metric_1.html#E1:6_1_1"><i><font color="Green" title="E1">X</font></i></a></i>;<br/>


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