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<b>let </b><font color="Maroon" title="c1">S</font> be   <a href="osalg_1.html#NM3" title="OSALG_1:NM.3">OrderSortedSign</a>;<br/><b>let </b><font color="Maroon" title="c2">op1</font>, <font color="Maroon" title="c3">op2</font> be   <a href="osalg_1.html#NM2" title="OSALG_1:NM.2">OperSymbol</a> of <font color="Maroon" title="c1">S</font>;<br/>





<a NAME="E1:87"/>
( <font color="Maroon" title="c3">op2</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a>  <a href="eqrel_1.html#K6" title="EQREL_1:func.6">Class</a> the <a href="osalg_1.html#U1" title="OSALG_1:sel.1">Overloading</a> of <font color="Maroon" title="c1">S</font>,<font color="Maroon" title="c2">op1</font> iff  <a href="eqrel_1.html#K6" title="EQREL_1:func.6">Class</a> the <a href="osalg_1.html#U1" title="OSALG_1:sel.1">Overloading</a> of <font color="Maroon" title="c1">S</font>,<font color="Maroon" title="c2">op1</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="eqrel_1.html#K6" title="EQREL_1:func.6">Class</a> the <a href="osalg_1.html#U1" title="OSALG_1:sel.1">Overloading</a> of <font color="Maroon" title="c1">S</font>,<font color="Maroon" title="c3">op2</font> )
 
<b>by </b><i><a class="ref" href="eqrel_1.html#T31" title="EQREL_1:th.31">EQREL_1:31</a></i>;<br/>
<b>hence </b><a NAME="E2:87"/>
( <font color="Maroon" title="c2">op1</font> <a href="osalg_1.html#R1" title="OSALG_1:pred.1">~=</a> <font color="Maroon" title="c3">op2</font> iff  <a href="osalg_1.html#K10" title="OSALG_1:func.10">Name</a> <font color="Maroon" title="c2">op1</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="osalg_1.html#K10" title="OSALG_1:func.10">Name</a> <font color="Maroon" title="c3">op2</font> )
 <b>by </b><i><a class="ref" href="osalg_1.html#T30" target="_self" title="OSALG_1:th.30">Th30</a></i>;<br/>


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