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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E53">Th45</font></span>: <a NAME="T44"><span class="comment"><font color="firebrick">:: INTPRO_2:44</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">p</font>, <font color="Olive" title="b2">q</font> being    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of  <a href="intpro_1.html#K1" title="INTPRO_1:func.1">MC-wff</a>  holds  <font color="Olive" title="b2">q</font> <a href="intpro_1.html#K3" title="INTPRO_1:func.3">=&gt;</a> <span class="p1">(<span class="default"><font color="Olive" title="b1">p</font> <a href="intpro_1.html#K5" title="INTPRO_1:func.5">'or'</a> <font color="Olive" title="b2">q</font></span>)</span> is  <a href="intpro_2.html#V1" title="INTPRO_2:attr.1">valid_IPC</a> </div></div>
