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<b>let </b><font color="Maroon">j1</font> be   <a href="int_1.html#NM1">Integer</a>;<br/><b>let </b><font color="Maroon">j2</font> be   <a href="int_1.html#NM1">Integer</a>;<br/>



<b>reconsider </b><font color="Maroon">i1</font> = <font color="Maroon">j1</font>, <font color="Maroon">i2</font> = <font color="Maroon">j2</font> as    <a href="subset_1.html#M1">Element</a> of  <a href="numbers.html#K4">INT</a>  <b>by </b><i><a class="ref" href="int_1.html#D2">INT_1:def 2</a></i>;<br/>
<a NAME="E2:5"/>
<a href="binop_2.html#K44">addint</a>  <a href="binop_1.html#K2">.</a> <font color="Maroon">i1</font>,<font color="Maroon">i2</font> <a href="hidden.html#R1">=</a> <font color="Maroon">j1</font> <a href="xcmplx_0.html#K2">+</a> <font color="Maroon">j2</font>
 
<b>by </b><i><a class="ref" href="binop_2.html#D20">BINOP_2:def 20</a></i>;<br/>
<b>hence </b><a NAME="E3:5"/>
<a href="binop_2.html#K44">addint</a>  <a href="binop_1.html#K1">.</a> <font color="Maroon">j1</font>,<font color="Maroon">j2</font> <a href="hidden.html#R1">=</a> <font color="Maroon">j1</font> <a href="xcmplx_0.html#K2">+</a> <font color="Maroon">j2</font>
 ;<br/>


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