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<a NAME="E1:36_1_1"/>
 <a href="gcd_1.html#K2" title="GCD_1:func.2">Class</a> <span class="p1">(<span class="default"><a href="struct_0.html#K5" title="STRUCT_0:func.5">1.</a> <font color="Maroon" title="c1">R</font></span>)</span> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a>  <a href="gcd_1.html#K3" title="GCD_1:func.3">Classes</a> <font color="Maroon" title="c1">R</font>
 
<b>by </b><i><a class="ref" href="gcd_1.html#D6" target="_self" title="GCD_1:def.6">Def6</a></i>;<br/>
<b>hence </b><a NAME="E2:36_1_1"/>
not  <a href="gcd_1.html#K3" title="GCD_1:func.3">Classes</a> <font color="Maroon" title="c1">R</font> is <a href="xboole_0.html#V1" title="XBOOLE_0:attr.1">empty</a>
 ; <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide"> verum</span><br/>


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