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<b>let </b><font color="Maroon">H</font> be   <a href="modelc_1.html#NM1">CTL-formula</a>;<br/>

<b>assume </b><a NAME="E1:40"/><i><font color="Green">E27</font></i>: 
<font color="Maroon">H</font> is <a href="modelc_1.html#V6" target="_self">ExistGlobal</a>
 ;<br/>

<a NAME="E2:40"/><b>then </b>
( not <font color="Maroon">H</font> is <a href="modelc_1.html#V3" target="_self">negative</a> &amp; not <font color="Maroon">H</font> is <a href="modelc_1.html#V5" target="_self">ExistNext</a> )
 
<b>by </b><i><a class="ref" href="modelc_1.html#D2" target="_self">Def2</a></i>;<br/>
<b>hence </b><a NAME="E3:40"/>
<font color="Maroon">H</font> <a href="hidden.html#R1">=</a>  <a href="modelc_1.html#K11" target="_self">EG</a> <span class="p1">(<span class="default"><a href="modelc_1.html#K15" target="_self">the_argument_of</a> <font color="Maroon">H</font></span>)</span>
 <b>by </b><i><a class="ref" href="modelc_1.html#D5" target="_self">Def5</a>, </i>;<br/>


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