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<a NAME="E1:2_1_1"/>
 not  <a href="card_1.html#K1" title="CARD_1:func.1">card</a> <font color="Maroon" title="c2">X</font> <a href="ordinal1.html#R1" title="ORDINAL1:pred.1">c=</a>  <a href="card_1.html#K4" title="CARD_1:func.4">card</a> <font color="Maroon" title="c1">n</font>
 
;<br/>
<span class="kw">hence </span><a NAME="E2:2_1_1"/>
 not  <a href="group_10.html#K3" title="GROUP_10:func.3">the_subsets_of_card</a> (<font color="Maroon" title="c1">n</font>,<font color="Maroon" title="c2">X</font>) is  <a href="xboole_0.html#V1" title="XBOOLE_0:attr.1">empty</a> 
 <span class="kw">by</span> <span class="lab"><a class="ref" href="group_10.html#T1" onmouseover="rs('group_10/T1')" onmouseout="rh()">GROUP_10:1</a></span>; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> verum</span><br/>


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