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<a NAME="E1:19_1"/><i><font color="Green" title="E7">A3</font></i>: 
<font color="Maroon">F<sub>2</sub></font>() <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4" title="TARSKI:func.4">[</a><span class="default"><font color="Olive" title="b1">o</font>,<font color="Maroon">F<sub>4</sub></font>(<font color="Olive" title="b1">o</font>)</span><a href="tarski.html#K4" title="TARSKI:func.4">]</a></span> where <font color="Olive" title="b1">o</font> is    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of <font color="Maroon">F<sub>1</sub></font>() : <font color="Maroon">P<sub>1</sub></font>[<font color="Olive" title="b1">o</font>] </span>}</span> 
 
<b>by </b><i><a class="txt" href="altcat_2.html#E1:19"><i><font color="Green" title="E5">A1</font></i></a></i>;<br/>
<a NAME="E2:19_1"/>
 <a href="relat_1.html#NK2" title="RELAT_1:NK.2">dom</a> <font color="Maroon">F<sub>2</sub></font>() <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1">{<span class="default"> <font color="Olive" title="b1">o</font> where <font color="Olive" title="b1">o</font> is    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of <font color="Maroon">F<sub>1</sub></font>() : <font color="Maroon">P<sub>1</sub></font>[<font color="Olive" title="b1">o</font>] </span>}</span> 
 
<b>from </b><i><a class="ref" href="altcat_2.html#S2" target="_self" title="ALTCAT_2:sch.2">ALTCAT_2:sch 2</a>(<a class="txt" href="altcat_2.html#E1:19_1"><i><font color="Green" title="E7">A3</font></i></a>);<br/></i>
<a NAME="E3:19_1"/><b>then </b><i><font color="Green" title="E8">A4</font></i>: 
<font color="Maroon">F<sub>3</sub></font>() <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a>  <a href="relat_1.html#NK2" title="RELAT_1:NK.2">dom</a> <font color="Maroon">F<sub>2</sub></font>()
 
<b>by </b><i><a class="txt" href="altcat_2.html#E2:19"><i><font color="Green" title="E6">A2</font></i></a></i>;<br/>
<a NAME="E4:19_1"/>
<span class="p1"><a href="tarski.html#K4" title="TARSKI:func.4">[</a><span class="default"><font color="Maroon">F<sub>3</sub></font>(),<font color="Maroon">F<sub>4</sub></font>(<font color="Maroon">F<sub>3</sub></font>())</span><a href="tarski.html#K4" title="TARSKI:func.4">]</a></span> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <span class="p1">{<span class="default"> <span class="p2"><a href="tarski.html#K4" title="TARSKI:func.4">[</a><span class="default"><font color="Olive" title="b1">o</font>,<font color="Maroon">F<sub>4</sub></font>(<font color="Olive" title="b1">o</font>)</span><a href="tarski.html#K4" title="TARSKI:func.4">]</a></span> where <font color="Olive" title="b1">o</font> is    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of <font color="Maroon">F<sub>1</sub></font>() : <font color="Maroon">P<sub>1</sub></font>[<font color="Olive" title="b1">o</font>] </span>}</span> 
 
<b>by </b><i><a class="txt" href="altcat_2.html#E2:19"><i><font color="Green" title="E6">A2</font></i></a></i>;<br/>
<b>hence </b><a NAME="E5:19_1"/>
<font color="Maroon">F<sub>2</sub></font>() <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> <font color="Maroon">F<sub>3</sub></font>() <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon">F<sub>4</sub></font>(<font color="Maroon">F<sub>3</sub></font>())
 <b>by </b><i><a class="txt" href="altcat_2.html#E1:19"><i><font color="Green" title="E5">A1</font></i></a>, <a class="txt" href="altcat_2.html#E3:19_1"><i><font color="Green" title="E8">A4</font></i></a>, <a class="ref" href="funct_1.html#D4" title="FUNCT_1:def.4">FUNCT_1:def 4</a></i>;<br/>


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