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<b>let </b><font color="Maroon" title="c22">A1</font>, <font color="Maroon" title="c23">A2</font> be  non <a href="realset1.html#V1" title="REALSET1:attr.1">trivial</a>  <a href="hidden.html#M1" title="HIDDEN:mode.1">set</a> ;<br/>

<b>assume </b><b>that </b><br/><a NAME="E1:31_1_2"/><i><font color="Green" title="E50">A2</font></i>: 
 ex <font color="Olive" title="b1">od1</font> being  <a href="binop_1.html#NM2" title="BINOP_1:NM.2">BinOp</a> of <font color="Maroon" title="c22">A1</font> ex <font color="Olive" title="b2">nd1</font> being   <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of <font color="Maroon" title="c22">A1</font> ex <font color="Olive" title="b3">om1</font> being   <a href="realset1.html#M3" title="REALSET1:mode.3">DnT</a> of <font color="Olive" title="b2">nd1</font>,<font color="Maroon" title="c22">A1</font> ex <font color="Olive" title="b4">nm1</font> being   <a href="subset_1.html#M2" title="SUBSET_1:mode.2">Element</a> of <font color="Maroon" title="c22">A1</font> <a href="subset_1.html#K6" title="SUBSET_1:func.6">\</a> <span class="p1"><a href="realset1.html#K5" title="REALSET1:func.5">{</a><span class="default"><font color="Olive" title="b2">nd1</font></span><a href="realset1.html#K5" title="REALSET1:func.5">}</a></span> st <font color="Maroon" title="c21">F</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="realset2.html#K1" title="REALSET2:func.1">field</a> <font color="Maroon" title="c22">A1</font>,<font color="Olive" title="b1">od1</font>,<font color="Olive" title="b3">om1</font>,<font color="Olive" title="b2">nd1</font>,<font color="Olive" title="b4">nm1</font>
 <b>and </b><br/><a NAME="E2:31_1_2"/><i><font color="Green" title="E51">A3</font></i>: 
 ex <font color="Olive" title="b1">od2</font> being  <a href="binop_1.html#NM2" title="BINOP_1:NM.2">BinOp</a> of <font color="Maroon" title="c23">A2</font> ex <font color="Olive" title="b2">nd2</font> being   <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of <font color="Maroon" title="c23">A2</font> ex <font color="Olive" title="b3">om2</font> being   <a href="realset1.html#M3" title="REALSET1:mode.3">DnT</a> of <font color="Olive" title="b2">nd2</font>,<font color="Maroon" title="c23">A2</font> ex <font color="Olive" title="b4">nm2</font> being   <a href="subset_1.html#M2" title="SUBSET_1:mode.2">Element</a> of <font color="Maroon" title="c23">A2</font> <a href="subset_1.html#K6" title="SUBSET_1:func.6">\</a> <span class="p1"><a href="realset1.html#K5" title="REALSET1:func.5">{</a><span class="default"><font color="Olive" title="b2">nd2</font></span><a href="realset1.html#K5" title="REALSET1:func.5">}</a></span> st <font color="Maroon" title="c21">F</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="realset2.html#K1" title="REALSET2:func.1">field</a> <font color="Maroon" title="c23">A2</font>,<font color="Olive" title="b1">od2</font>,<font color="Olive" title="b3">om2</font>,<font color="Olive" title="b2">nd2</font>,<font color="Olive" title="b4">nm2</font>
 ;<br/>

<font color="Maroon" title="c22">A1</font> = 
the <a href="struct_0.html#U1" title="STRUCT_0:sel.1">carrier</a> of <font color="Maroon" title="c21">F</font>
<b>by </b><i><a class="txt" href="realset2.html#E1:31_1_2"><i><font color="Green" title="E50">A2</font></i></a>, <a class="ref" href="realset2.html#D6" target="_self" title="REALSET2:def.6">Def6</a></i>
<br/>.= 
<font color="Maroon" title="c23">A2</font>
<b>by </b><i><a class="txt" href="realset2.html#E2:31_1_2"><i><font color="Green" title="E51">A3</font></i></a>, <a class="ref" href="realset2.html#D6" target="_self" title="REALSET2:def.6">Def6</a></i>
;<br/>
<b>hence </b><a NAME="E4:31_1_2"/>
<font color="Maroon" title="c22">A1</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c23">A2</font>
 ;<br/>


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