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<b>let </b><font color="Maroon">c<sub>2</sub></font> be    <a href="pralg_2.html#M1">Element</a> of  <a href="card_3.html#K4">product</a> <span class="p1">(<span class="default"><a href="pralg_1.html#K12">Carrier</a> <span class="p2"><a href="group_7.html#K4" target="_self">&lt;*</a><span class="default"><font color="Maroon">c<sub>1</sub></font></span><a href="group_7.html#K4" target="_self">*&gt;</a></span></span>)</span>;<br/>

<b>take </b>
1
; <i><font color="Red">:: according to </font></i><a class="ref" href="finseq_1.html#D2">FINSEQ_1:def 2</a><br/>

<b>thus </b> <a href="relat_1.html#K1">dom</a> <font color="Maroon">c<sub>2</sub></font> = 
 <a href="relat_1.html#K1">dom</a> <span class="p1">(<span class="default"><a href="pralg_1.html#K12">Carrier</a> <span class="p2"><a href="group_7.html#K4" target="_self">&lt;*</a><span class="default"><font color="Maroon">c<sub>1</sub></font></span><a href="group_7.html#K4" target="_self">*&gt;</a></span></span>)</span>
<b>by </b><i><a class="ref" href="card_3.html#T18">CARD_3:18</a></i>
<br/>.= 
 <a href="finseq_1.html#K2">Seg</a> 1
<b>by </b><i><a class="ref" href="finseq_1.html#T4">FINSEQ_1:4</a>, <a class="ref" href="pboole.html#D3">PBOOLE:def 3</a></i>
;<br/>


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