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<a NAME="E1:24_1_1"/>
 <a href="relat_1.html#K1">dom</a> <span class="p1">(<span class="default"><a href="funct_6.html#K3">rngs</a> <font color="Maroon">M</font></span>)</span> <a href="hidden.html#R1">=</a>  <a href="finseq_1.html#K4">dom</a> <font color="Maroon">M</font>
 
<b>by </b><i><a class="ref" href="funct_6.html#T90">FUNCT_6:90</a></i>;<br/>
<b>then reconsider </b><font color="Maroon">X</font> =  <a href="relat_1.html#K2">rng</a> <span class="p1">(<span class="default"><a href="funct_6.html#K3">rngs</a> <font color="Maroon">M</font></span>)</span> as  non <a href="xboole_0.html#V1">empty</a> <a href="setfam_1.html#V1">with_non-empty_elements</a>  <a href="hidden.html#M1">set</a>  <b>by </b><i><a class="ref" href="relat_1.html#T65">RELAT_1:65</a></i>;<br/>
 <a href="jordan1h.html#K2" target="_self">Values</a> <font color="Maroon">M</font> = 
 <a href="card_3.html#K3">Union</a> <span class="p1">(<span class="default"><a href="funct_6.html#K3">rngs</a> <font color="Maroon">M</font></span>)</span>
<b>by </b><i><a class="ref" href="gobrd13.html#D1">GOBRD13:def 1</a></i>
<br/>.= 
 <a href="tarski.html#K3">union</a> <font color="Maroon">X</font>
<b>by </b><i><a class="ref" href="card_3.html#D4">CARD_3:def 4</a></i>
;<br/>
<b>hence </b><a NAME="E4:24_1_1"/>
not  <a href="jordan1h.html#K2" target="_self">Values</a> <font color="Maroon">M</font> is <a href="xboole_0.html#V1">empty</a>
 ;<br/>


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