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 <a href="relset_1.html#K2" title="RELSET_1:func.2">rng</a> <span class="p1">(<span class="default"><font color="Maroon" title="c1">X</font> <a href="funcop_1.html#K7" title="FUNCOP_1:func.7">--&gt;</a> <font color="Maroon" title="c2">x</font></span>)</span> <a href="tarski.html#R1" title="TARSKI:pred.1">c=</a>  <a href="numbers.html#K3" title="NUMBERS:func.3">RAT</a> 
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="membered.html#T4" title="MEMBERED:th.4">MEMBERED:4</a></span>;<br/>
<span class="kw">hence </span><a NAME="E2:87_1_1"/>
<font color="Maroon" title="c1">X</font> <a href="funcop_1.html#K7" title="FUNCOP_1:func.7">--&gt;</a> <font color="Maroon" title="c2">x</font> is  <a href="valued_0.html#V4" title="VALUED_0:attr.4">rational-valued</a> 
 <span class="kw">by</span> <span class="lab"><a class="ref" href="valued_0.html#D4" target="_self" title="VALUED_0:def.4">Def4</a></span>; <a class="txt" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="Red">::  thesis: </font></span></a><span class="hide"> verum</span><br/>


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