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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E30">Th50</font></span>: <a NAME="T50"><span class="comment"><font color="firebrick">:: NAT_D:50</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">i</font>, <font color="Olive" title="b2">i1</font>, <font color="Olive" title="b3">i2</font> being   <a href="ordinal1.html#V7" title="ORDINAL1:attr.7">natural</a>   <a href="ordinal1.html#NM1" title="ORDINAL1:NM.1">Number</a>   st <font color="Olive" title="b1">i</font> <a href="xxreal_0.html#NR2" title="XXREAL_0:NR.2">&gt;=</a> <font color="Olive" title="b2">i1</font> holds <br/><font color="Olive" title="b1">i</font> <a href="xxreal_0.html#NR2" title="XXREAL_0:NR.2">&gt;=</a> <font color="Olive" title="b2">i1</font> <a href="xreal_0.html#K1" title="XREAL_0:func.1">-'</a> <font color="Olive" title="b3">i2</font></div></div>
