<?xml version="1.0"?>
<div><span class="kw">theorem </span><a NAME="T112"><span class="comment"><font color="firebrick">:: SEQ_4:112</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">n</font> being   <a href="ordinal1.html#NM6" title="ORDINAL1:NM.6">Nat</a><br/>  for <font color="Olive" title="b2">r1</font> being   <a href="xreal_0.html#NM1" title="XREAL_0:NM.1">Real</a><br/>  for <font color="Olive" title="b3">z1</font> being    <a href="finseq_2.html#M2" title="FINSEQ_2:mode.2">Element</a> of  <a href="seq_4.html#K12" title="SEQ_4:func.12">COMPLEX</a> <font color="Olive" title="b1">n</font> holds   <a href="seq_4.html#K21" title="SEQ_4:func.21">Ball</a> (<font color="Olive" title="b3">z1</font>,<font color="Olive" title="b2">r1</font>) is  <a href="seq_4.html#V1" title="SEQ_4:attr.1">open</a> </div></div>
