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<div><span class="kw">theorem </span><a NAME="T16"><span class="comment"><font color="firebrick">:: BSPACE:16</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">X</font>, <font color="Olive" title="b2">Y</font> being    <a href="hidden.html#M2" title="HIDDEN:mode.2">set</a>  holds <br/> ( <font color="Olive" title="b1">X</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b2">Y</font> iff  for <font color="Olive" title="b3">x</font> being    <a href="hidden.html#M1" title="HIDDEN:mode.1">object</a>  holds  <font color="Olive" title="b1">X</font> <a href="bspace.html#K3" title="BSPACE:func.3">@</a> <font color="Olive" title="b3">x</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b2">Y</font> <a href="bspace.html#K3" title="BSPACE:func.3">@</a> <font color="Olive" title="b3">x</font> )</div></div>
