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<b>let </b><font color="Maroon" title="c1">D</font>, <font color="Maroon" title="c2">D'</font>, <font color="Maroon" title="c3">E</font>, <font color="Maroon" title="c4">C</font>, <font color="Maroon" title="c5">C'</font> be  non <a href="xboole_0.html#V1" title="XBOOLE_0:attr.1">empty</a>  <a href="hidden.html#M1" title="HIDDEN:mode.1">set</a> ;<br/><b>let </b><font color="Maroon" title="c6">F</font> be   <a href="funct_2.html#NM1" title="FUNCT_2:NM.1">Function</a> of <span class="p1"><a href="zfmisc_1.html#K2" title="ZFMISC_1:func.2">[:</a><span class="default"><font color="Maroon" title="c1">D</font>,<font color="Maroon" title="c2">D'</font></span><a href="zfmisc_1.html#K2" title="ZFMISC_1:func.2">:]</a></span>,<font color="Maroon" title="c3">E</font>;<br/><b>let </b><font color="Maroon" title="c7">f</font> be   <a href="funct_2.html#NM1" title="FUNCT_2:NM.1">Function</a> of <font color="Maroon" title="c4">C</font>,<font color="Maroon" title="c1">D</font>;<br/><b>let </b><font color="Maroon" title="c8">g</font> be   <a href="funct_2.html#NM1" title="FUNCT_2:NM.1">Function</a> of <font color="Maroon" title="c5">C'</font>,<font color="Maroon" title="c2">D'</font>;<br/>















<a NAME="E1:93"/>
<font color="Maroon" title="c6">F</font> <a href="finseqop.html#K7" title="FINSEQOP:func.7">*</a> <font color="Maroon" title="c7">f</font>,<font color="Maroon" title="c8">g</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c6">F</font> <a href="partfun1.html#K1" title="PARTFUN1:func.1">*</a> <span class="p1"><a href="funct_3.html#K16" title="FUNCT_3:func.16">[:</a><span class="default"><font color="Maroon" title="c7">f</font>,<font color="Maroon" title="c8">g</font></span><a href="funct_3.html#K16" title="FUNCT_3:func.16">:]</a></span>
 
;<br/>
<b>hence </b><a NAME="E2:93"/>
<font color="Maroon" title="c6">F</font> <a href="finseqop.html#K7" title="FINSEQOP:func.7">*</a> <font color="Maroon" title="c7">f</font>,<font color="Maroon" title="c8">g</font> is   <a href="funct_2.html#NM1" title="FUNCT_2:NM.1">Function</a> of <span class="p1"><a href="zfmisc_1.html#K2" title="ZFMISC_1:func.2">[:</a><span class="default"><font color="Maroon" title="c4">C</font>,<font color="Maroon" title="c5">C'</font></span><a href="zfmisc_1.html#K2" title="ZFMISC_1:func.2">:]</a></span>,<font color="Maroon" title="c3">E</font>
 ;<br/>


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