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<a NAME="E1:27_1_1"/><i><font color="Green" title="E14">A1</font></i>: 
 <a href="relat_1.html#K1" title="RELAT_1:func.1">dom</a> <span class="p1">(<span class="default"><a href="relset_2.html#NK4" title="RELSET_2:NK.4">.:</a> </span>)</span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="zfmisc_1.html#K1" title="ZFMISC_1:func.1">bool</a> <font color="Maroon" title="c2">A</font>
 
<b>by </b><i><a class="ref" href="relset_2.html#D3" target="_self" title="RELSET_2:def.3">Def3</a></i>;<br/>
<a NAME="E2:27_1_1"/><i><font color="Green" title="E15">A2</font></i>: 
 <a href="relset_2.html#NK4" title="RELSET_2:NK.4">.:</a>  is   <a href="funct_2.html#NM1" title="FUNCT_2:NM.1">Function</a> of  <a href="zfmisc_1.html#K1" title="ZFMISC_1:func.1">bool</a> <font color="Maroon" title="c2">A</font>, <a href="zfmisc_1.html#K1" title="ZFMISC_1:func.1">bool</a> <span class="p1">(<span class="default"><a href="relat_1.html#K2" title="RELAT_1:func.2">rng</a> <font color="Maroon" title="c3">R</font></span>)</span>
 
<b>by </b><i><a class="ref" href="relset_2.html#T21" target="_self" title="RELSET_2:th.21">Th21</a></i>;<br/>
<a NAME="E3:27_1_1"/>
<font color="Maroon" title="c3">R</font> is    <a href="relset_1.html#M2" title="RELSET_1:mode.2">Relation</a> of <font color="Maroon" title="c2">A</font>,<font color="Maroon" title="c1">B</font>
 
<b>by </b><i><a class="ref" href="relset_1.html#D1" title="RELSET_1:def.1">RELSET_1:def 1</a></i>;<br/>
<a NAME="E4:27_1_1"/><b>then </b><i><font color="Green" title="E16">A3</font></i>: 
 <a href="relat_1.html#K2" title="RELAT_1:func.2">rng</a> <font color="Maroon" title="c3">R</font> <a href="tarski.html#R1" title="TARSKI:pred.1">c=</a> <font color="Maroon" title="c1">B</font>
 
<b>by </b><i><a class="ref" href="relset_1.html#T12" title="RELSET_1:th.12">RELSET_1:12</a></i>;<br/>
<a NAME="E5:27_1_1"/><i><font color="Green" title="E17">A4</font></i>: 
 <a href="relat_1.html#K2" title="RELAT_1:func.2">rng</a> <span class="p1">(<span class="default"><a href="relset_2.html#NK4" title="RELSET_2:NK.4">.:</a> </span>)</span> <a href="tarski.html#R1" title="TARSKI:pred.1">c=</a>  <a href="zfmisc_1.html#K1" title="ZFMISC_1:func.1">bool</a> <span class="p1">(<span class="default"><a href="relat_1.html#K2" title="RELAT_1:func.2">rng</a> <font color="Maroon" title="c3">R</font></span>)</span>
 
<b>by </b><i><a class="txt" href="relset_2.html#E2:27_1_1"><i><font color="Green" title="E15">A2</font></i></a>, <a class="ref" href="relset_1.html#T12" title="RELSET_1:th.12">RELSET_1:12</a></i>;<br/>
<a NAME="E6:27_1_1"/>
 <a href="zfmisc_1.html#K1" title="ZFMISC_1:func.1">bool</a> <span class="p1">(<span class="default"><a href="relat_1.html#K2" title="RELAT_1:func.2">rng</a> <font color="Maroon" title="c3">R</font></span>)</span> <a href="tarski.html#R1" title="TARSKI:pred.1">c=</a>  <a href="zfmisc_1.html#K1" title="ZFMISC_1:func.1">bool</a> <font color="Maroon" title="c1">B</font>
 
<b>by </b><i><a class="ref" href="zfmisc_1.html#T79" title="ZFMISC_1:th.79">ZFMISC_1:79</a>, <a class="txt" href="relset_2.html#E4:27_1_1"><i><font color="Green" title="E16">A3</font></i></a></i>;<br/>
<a NAME="E7:27_1_1"/><b>then </b>
 <a href="relat_1.html#K2" title="RELAT_1:func.2">rng</a> <span class="p1">(<span class="default"><a href="relset_2.html#NK4" title="RELSET_2:NK.4">.:</a> </span>)</span> <a href="tarski.html#R1" title="TARSKI:pred.1">c=</a>  <a href="zfmisc_1.html#K1" title="ZFMISC_1:func.1">bool</a> <font color="Maroon" title="c1">B</font>
 
<b>by </b><i><a class="txt" href="relset_2.html#E5:27_1_1"><i><font color="Green" title="E17">A4</font></i></a>, <a class="ref" href="xboole_1.html#T1" title="XBOOLE_1:th.1">XBOOLE_1:1</a></i>;<br/>
<b>hence </b><a NAME="E8:27_1_1"/>
 <a href="relset_2.html#K2" title="RELSET_2:func.2">.:</a> <font color="Maroon" title="c3">R</font>,<font color="Maroon" title="c2">A</font> is   <a href="funct_2.html#NM1" title="FUNCT_2:NM.1">Function</a> of  <a href="zfmisc_1.html#K1" title="ZFMISC_1:func.1">bool</a> <font color="Maroon" title="c2">A</font>, <a href="zfmisc_1.html#K1" title="ZFMISC_1:func.1">bool</a> <font color="Maroon" title="c1">B</font>
 <b>by </b><i><a class="txt" href="relset_2.html#E1:27_1_1"><i><font color="Green" title="E14">A1</font></i></a>, <a class="ref" href="funct_2.html#D1" title="FUNCT_2:def.1">FUNCT_2:def 1</a>, <a class="ref" href="relset_1.html#T11" title="RELSET_1:th.11">RELSET_1:11</a></i>;<br/>


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