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<div><span class="kw">theorem </span><a NAME="T17"><span class="comment"><font color="firebrick">:: BKMODEL4:17</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="pre_topc.html#NM2" title="PRE_TOPC:NM.2">Point</a> of <a href="bkmodel3.html#K9" title="BKMODEL3:func.9">BK-model-Plane</a>  st <font color="Olive" title="b1">P</font> <a href="hidden.html#NR2" title="HIDDEN:NR.2">&lt;&gt;</a> <font color="Olive" title="b2">Q</font> holds <br/>(  <a href="bkmodel4.html#K3" title="BKMODEL4:func.3">length</a> (<font color="Olive" title="b1">P</font>,<font color="Olive" title="b1">P</font>,<font color="Olive" title="b2">Q</font>) <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="numbers.html#K5" title="NUMBERS:func.5">0</a>  &amp;  <a href="bkmodel4.html#K3" title="BKMODEL4:func.3">length</a> (<font color="Olive" title="b1">P</font>,<font color="Olive" title="b2">Q</font>,<font color="Olive" title="b2">Q</font>) <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 1 )</div></div>
