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<a NAME="E1:28_1_1"/>
for <font color="Olive">A</font> being   <a href="hidden.html#M1">set</a>  holds <br/> ( <font color="Olive">A</font> <a href="hidden.html#R2">in</a>  <a href="measure3.html#K2" target="_self">COM</a> <font color="Maroon">S</font>,<font color="Maroon">M</font> iff  ex <font color="Olive">B</font> being   <a href="hidden.html#M1">set</a>  st <br/>( <font color="Olive">B</font> <a href="hidden.html#R2">in</a> <font color="Maroon">S</font> &amp;  ex <font color="Olive">C</font> being   <a href="measure3.html#M1" target="_self">thin</a> of <font color="Maroon">M</font> st <font color="Olive">A</font> <a href="hidden.html#R1">=</a> <font color="Olive">B</font> <a href="xboole_0.html#K2">\/</a> <font color="Olive">C</font> ) )
 
<b>by </b><i/>;<br/>
<b>hence </b><a NAME="E2:28_1_1"/>
(  <a href="measure3.html#K2" target="_self">COM</a> <font color="Maroon">S</font>,<font color="Maroon">M</font> is <a href="measure1.html#V2">sigma-additive</a> &amp;  <a href="measure3.html#K2" target="_self">COM</a> <font color="Maroon">S</font>,<font color="Maroon">M</font> is <a href="prob_1.html#V1">compl-closed</a> &amp; not  <a href="measure3.html#K2" target="_self">COM</a> <font color="Maroon">S</font>,<font color="Maroon">M</font> is <a href="xboole_0.html#V1">empty</a> )
 <b>by </b><i/>;<br/>


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