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<div><span class="kw">theorem </span><a NAME="T47"><span class="comment"><font color="firebrick">:: BCIALG_5:47</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">X</font> being   <a href="bcialg_1.html#NM1" title="BCIALG_1:NM.1">BCI-algebra</a>  st <font color="Olive" title="b1">X</font> is   <a href="bcialg_1.html#V17" title="BCIALG_1:attr.17">implicative</a>  <a href="bcialg_1.html#NM1" title="BCIALG_1:NM.1">BCI-algebra</a> holds <br/><font color="Olive" title="b1">X</font> is    <a href="bcialg_5.html#M1" title="BCIALG_5:mode.1">BCI-algebra</a> of  <a href="numbers.html#K5" title="NUMBERS:func.5">0</a> ,1, <a href="numbers.html#K5" title="NUMBERS:func.5">0</a> , <a href="numbers.html#K5" title="NUMBERS:func.5">0</a> </div></div>
