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<b>let </b><font color="Maroon">S</font> be   <a href="osalg_1.html#NM3">OrderSortedSign</a>;<br/><b>let </b><font color="Maroon">op1</font> be   <a href="osalg_1.html#NM2">OperSymbol</a> of <font color="Maroon">S</font>;<br/><b>let </b><font color="Maroon">op2</font> be   <a href="osalg_1.html#NM2">OperSymbol</a> of <font color="Maroon">S</font>;<br/>





<a NAME="E1:86"/>
( <font color="Maroon">op1</font> <a href="osalg_1.html#R1" target="_self">~=</a> <font color="Maroon">op2</font> iff <span class="p1"><a href="tarski.html#K4">[</a><span class="default"><font color="Maroon">op2</font>,<font color="Maroon">op1</font></span><a href="tarski.html#K4">]</a></span> <a href="hidden.html#R2">in</a> the <a href="osalg_1.html#U1" target="_self">Overloading</a> of <font color="Maroon">S</font> )
 
<b>by </b><i/>;<br/>
<b>hence </b><a NAME="E2:86"/>
( <font color="Maroon">op1</font> <a href="osalg_1.html#R1" target="_self">~=</a> <font color="Maroon">op2</font> iff <font color="Maroon">op2</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">S</font>,<font color="Maroon">op1</font> )
 <b>by </b><i><a class="ref" href="eqrel_1.html#T27">EQREL_1:27</a></i>;<br/>


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