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<a NAME="E1:129_1_1"/>
 <a href="relat_1.html#K2">rng</a> <font color="Maroon">S</font> <a href="hidden.html#R1">=</a>  <a href="glib_000.html#K6">the_Vertices_of</a> <font color="Maroon">G</font>
 
<b>by </b><i/>;<br/>
<a NAME="E2:129_1_1"/><b>then </b>
0 <a href="nat_1.html#K1">+</a> 1 <a href="xxreal_0.html#R1">&lt;=</a> <font color="Maroon">x</font> <a href="finseq_4.html#K5">..</a> <font color="Maroon">S</font>
 
<b>by </b><i><a class="ref" href="finseq_4.html#T31">FINSEQ_4:31</a></i>;<br/>
<b>hence </b><a NAME="E3:129_1_1"/>
<font color="Maroon">x</font> <a href="finseq_4.html#K5">..</a> <font color="Maroon">S</font> is  non <a href="xboole_0.html#V1">zero</a>  <a href="subset_1.html#M2">Element</a> of  <a href="numbers.html#K5">NAT</a> 
 ;<br/>


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