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<a NAME="E1:11_1_1"/>
( <font color="Maroon" title="c2">S1</font> <a href="tarski.html#R1" title="TARSKI:pred.1">c=</a> <font color="Maroon" title="c1">Fml</font> &amp; <font color="Maroon" title="c3">S2</font> <a href="tarski.html#R1" title="TARSKI:pred.1">c=</a> <font color="Maroon" title="c1">Fml</font> )
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="proofs_1.html#D4" target="_self" onmouseover="rs('proofs_1/D4')" onmouseout="rh()">Def4</a></span>;<br/>
<span class="kw">hence </span><a NAME="E2:11_1_1"/>
<font color="Maroon" title="c2">S1</font> <a href="xboole_0.html#K2" title="XBOOLE_0:func.2">\/</a> <font color="Maroon" title="c3">S2</font> is    <a href="proofs_1.html#M3" title="PROOFS_1:mode.3">Formula-finset</a> of <font color="Maroon" title="c1">Fml</font>
 <span class="kw">by</span> <span class="lab"><a class="ref" href="proofs_1.html#D4" target="_self" onmouseover="rs('proofs_1/D4')" onmouseout="rh()">Def4</a>, <a class="ref" href="xboole_1.html#T8" onmouseover="rs('xboole_1/T8')" onmouseout="rh()">XBOOLE_1:8</a></span>; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> verum</span><br/>


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