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<b>let </b><font color="Maroon" title="c1">X</font> be    <a href="hidden.html#M1" title="HIDDEN:mode.1">set</a> ;<br/>

<a NAME="E1:1"/>
 <a href="classes1.html#K1" title="CLASSES1:func.1">Tarski-Class</a> <font color="Maroon" title="c1">X</font> <a href="classes1.html#R1" title="CLASSES1:pred.1">is_Tarski-Class_of</a> <font color="Maroon" title="c1">X</font>
 
<b>by </b><i><a class="ref" href="classes1.html#D4" title="CLASSES1:def.4">CLASSES1:def 4</a></i>;<br/>
<b>hence </b><a NAME="E2:1"/>
 <a href="classes1.html#K1" title="CLASSES1:func.1">Tarski-Class</a> <font color="Maroon" title="c1">X</font> <a href="classes1.html#NR1" title="CLASSES1:NR.1">is_Tarski-Class</a> 
 <b>by </b><i><a class="ref" href="classes1.html#D3" title="CLASSES1:def.3">CLASSES1:def 3</a></i>;<br/>


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