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<div>:: <span class="kw">deftheorem </span>   defines <a href="fomodel0.html#K13" title="FOMODEL0:func.13">null</a> <a onclick="hs(this)" href="javascript:()">FOMODEL0:def 15 : <br/></a><span> for <font color="Olive" title="b1">B</font>, <font color="Olive" title="b2">A</font> being    <a href="hidden.html#M1" title="HIDDEN:mode.1">object</a>  holds  <font color="Olive" title="b2">A</font> <a href="fomodel0.html#K13" title="FOMODEL0:func.13">null</a> <font color="Olive" title="b1">B</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b2">A</font>;<br/></span></div>
