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<b>let </b><font color="Maroon">c<sub>1</sub></font> be   <a href="osalg_1.html#NM3">OrderSortedSign</a>;<br/><b>let </b><font color="Maroon">c<sub>2</sub></font>, <font color="Maroon">c<sub>3</sub></font> be   <a href="osalg_1.html#NM2">OperSymbol</a> of <font color="Maroon">c<sub>1</sub></font>;<br/>





<a NAME="E1:87"/>
( <font color="Maroon">c<sub>3</sub></font> <a href="hidden.html#R2">in</a>  <a href="eqrel_1.html#K7">Class</a> the <a href="osalg_1.html#U1" target="_self">Overloading</a> of <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>2</sub></font> iff  <a href="eqrel_1.html#K7">Class</a> the <a href="osalg_1.html#U1" target="_self">Overloading</a> of <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>2</sub></font> <a href="hidden.html#R1">=</a>  <a href="eqrel_1.html#K7">Class</a> the <a href="osalg_1.html#U1" target="_self">Overloading</a> of <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>3</sub></font> )
 
<b>by </b><i><a class="ref" href="eqrel_1.html#T31">EQREL_1:31</a></i>;<br/>
<b>hence </b><a NAME="E2:87"/>
( <font color="Maroon">c<sub>2</sub></font> <a href="osalg_1.html#R1" target="_self">~=</a> <font color="Maroon">c<sub>3</sub></font> iff  <a href="osalg_1.html#K10" target="_self">Name</a> <font color="Maroon">c<sub>2</sub></font> <a href="hidden.html#R1">=</a>  <a href="osalg_1.html#K10" target="_self">Name</a> <font color="Maroon">c<sub>3</sub></font> )
 <b>by </b><i><a class="ref" href="osalg_1.html#T30" target="_self">Th30</a></i>;<br/>


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