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<b>let </b><font color="Maroon">c<sub>1</sub></font> be  non <a href="struct_0.html#V3">empty</a>  <a href="struct_0.html#L1">1-sorted</a> ;<br/>

<a NAME="E1:22"/>
 <a href="relat_1.html#K1">dom</a> <span class="p1">(<span class="default"><a href="scmring1.html#K2" target="_self">SCM-OK</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> <a href="hidden.html#R1">=</a>  <a href="numbers.html#K5">NAT</a> 
 
<b>by </b><i><a class="ref" href="funct_2.html#D1">FUNCT_2:def 1</a></i>;<br/>
<b>hence </b> <a href="card_3.html#K5">pi</a> <span class="p1">(<span class="default"><a href="card_3.html#K4">product</a> <span class="p2">(<span class="default"><a href="scmring1.html#K2" target="_self">SCM-OK</a> <font color="Maroon">c<sub>1</sub></font></span>)</span></span>)</span>,0 = 
<span class="p1">(<span class="default"><a href="scmring1.html#K2" target="_self">SCM-OK</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> <a href="funct_2.html#K3">.</a> 0
<b>by </b><i><a class="ref" href="card_3.html#T22">CARD_3:22</a></i>
<br/>.= 
 <a href="ami_2.html#K3">SCM-Instr-Loc</a> 
<b>by </b><i><a class="ref" href="scmring1.html#D3" target="_self">Def3</a></i>
;<br/><br/>


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