<?xml version="1.0"?>
<div class="add">

<b>let </b><font color="Maroon">Omega</font> be  non <a href="xboole_0.html#V1">empty</a>  <a href="hidden.html#M1">set</a> ;<br/><b>let </b><font color="Maroon">Sigma</font> be   <a href="prob_1.html#NM3">SigmaField</a> of <font color="Maroon">Omega</font>;<br/><b>let </b><font color="Maroon">P</font> be    <a href="prob_1.html#M3">Probability</a> of <font color="Maroon">Sigma</font>;<br/><b>let </b><font color="Maroon">A</font> be    <a href="prob_1.html#M2">Event</a> of <font color="Maroon">Sigma</font>, <font color="Maroon">B</font> be    <a href="prob_1.html#M2">Event</a> of <font color="Maroon">Sigma</font>;<br/>







<b>assume </b><a NAME="E1:12"/><i><font color="Green">E24</font></i>: 
( <font color="Maroon">A</font> <a href="tarski.html#R1">c=</a> <font color="Maroon">B</font> &amp; <font color="Maroon">P</font> <a href="prob_1.html#K10">.</a> <font color="Maroon">B</font> <a href="hidden.html#R1">=</a> 0 )
 ;<br/>

<a NAME="E2:12"/>
<font color="Maroon">P</font> <a href="prob_1.html#K10">.</a> <font color="Maroon">A</font> <a href="xxreal_0.html#R1">&lt;=</a> 0
 
<b>by </b><i>, <a class="ref" href="prob_1.html#T70">PROB_1:70</a></i>;<br/>
<b>hence </b><a NAME="E3:12"/>
<font color="Maroon">P</font> <a href="prob_1.html#K10">.</a> <font color="Maroon">A</font> <a href="hidden.html#R1">=</a> 0
 <b>by </b><i><a class="ref" href="prob_1.html#D13">PROB_1:def 13</a></i>;<br/>


</div>
