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<b>let </b><font color="Maroon">R</font> be   <a href="relat_1.html#NM1">Relation</a>;<br/><b>let </b><font color="Maroon">a</font> be    <a href="hidden.html#M1">set</a> , <font color="Maroon">b</font> be    <a href="hidden.html#M1">set</a> ;<br/>



<b>assume </b><a NAME="E1:92"/>
( <font color="Maroon">a</font>,<font color="Maroon">b</font> <a href="rewrite1.html#R8" target="_self">are_divergent&lt;=1_wrt</a> <font color="Maroon">R</font> &amp; not <font color="Maroon">a</font>,<font color="Maroon">b</font> <a href="rewrite1.html#R5" target="_self">are_convergent_wrt</a> <font color="Maroon">R</font> )
 ; <i><font color="Red">:: according to </font></i><a class="ref" href="rewrite1.html#D27" target="_self">REWRITE1:def 27</a><br/>

<a NAME="E2:92"/><b>then </b>
<font color="Maroon">a</font>,<font color="Maroon">b</font> <a href="rewrite1.html#R6" target="_self">are_divergent_wrt</a> <font color="Maroon">R</font>
 
<b>by </b><i/>;<br/>
<b>hence </b><a NAME="E3:92"/>
<font color="Maroon">a</font>,<font color="Maroon">b</font> <a href="rewrite1.html#R2" target="_self">are_convertible_wrt</a> <font color="Maroon">R</font>
 <b>by </b><i/>;<br/>


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