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<b>let </b><font color="Maroon">c<sub>1</sub></font> be   <a href="sub_metr.html#NM1">PseudoMetricSpace</a>;<br/><b>let </b><font color="Maroon">c<sub>2</sub></font> be   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">c<sub>1</sub></font>;<br/>



<a NAME="E1:9"/>
<font color="Maroon">c<sub>2</sub></font> <a href="metric_2.html#R3" target="_self">tolerates</a> <font color="Maroon">c<sub>2</sub></font>
 
<b>by </b><i><a class="txt" href="metric_2.html#E4"><i><font color="Green">Lemma3</font></i></a></i>;<br/>
<b>hence </b><a NAME="E2:9"/>
<font color="Maroon">c<sub>2</sub></font> <a href="hidden.html#R2">in</a> <font color="Maroon">c<sub>2</sub></font> <a href="metric_2.html#K1" target="_self">-neighbour</a> 
 ;<br/>


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