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<b>let </b><font color="Maroon" title="c3">t</font>, <font color="Maroon" title="c4">s</font>, <font color="Maroon" title="c5">r</font> be    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of  <a href="arytm_3.html#K7" title="ARYTM_3:func.7">RAT+</a> ;<br/>





<b>assume </b><a NAME="E1:105"/><i><font color="Green" title="E86">A1</font></i>: 
( <font color="Maroon" title="c3">t</font> <a href="hidden.html#NR2" title="HIDDEN:NR.2">&lt;&gt;</a>  <a href="arytm_3.html#K13" title="ARYTM_3:func.13">{}</a>  &amp; <font color="Maroon" title="c4">s</font> <a href="arytm_3.html#K12" title="ARYTM_3:func.12">*'</a> <font color="Maroon" title="c3">t</font> <a href="arytm_3.html#R3" title="ARYTM_3:pred.3">&lt;='</a> <font color="Maroon" title="c5">r</font> <a href="arytm_3.html#K12" title="ARYTM_3:func.12">*'</a> <font color="Maroon" title="c3">t</font> )
 ;<br/>

<b>then consider </b><font color="Maroon" title="c6">x</font> being    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of  <a href="arytm_3.html#K7" title="ARYTM_3:func.7">RAT+</a> <b> such that </b><br/><a NAME="E3:105"/><i><font color="Green" title="E87">A2</font></i>: 
( <font color="Maroon" title="c4">s</font> <a href="arytm_3.html#K12" title="ARYTM_3:func.12">*'</a> <font color="Maroon" title="c3">t</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c3">t</font> <a href="arytm_3.html#K12" title="ARYTM_3:func.12">*'</a> <font color="Maroon" title="c6">x</font> &amp; <font color="Maroon" title="c6">x</font> <a href="arytm_3.html#R3" title="ARYTM_3:pred.3">&lt;='</a> <font color="Maroon" title="c5">r</font> )
 <b>by </b><i><a class="ref" href="arytm_3.html#T87" target="_self" title="ARYTM_3:th.87">Th87</a></i>;<br/>
<b>thus </b><a NAME="E4:105"/>
<font color="Maroon" title="c4">s</font> <a href="arytm_3.html#R3" title="ARYTM_3:pred.3">&lt;='</a> <font color="Maroon" title="c5">r</font>
 <b>by </b><i><a class="txt" href="arytm_3.html#E1:105"><i><font color="Green" title="E86">A1</font></i></a>, <a class="txt" href="arytm_3.html#E3:105"><i><font color="Green" title="E87">A2</font></i></a>, <a class="ref" href="arytm_3.html#T62" target="_self" title="ARYTM_3:th.62">Th62</a></i>;<br/>


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