<?xml version="1.0"?>
<div><span class="kw">theorem </span><a NAME="T52"><span class="comment"><font color="firebrick">:: EUCLID_7:52</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">B</font> being   <a href="euclid_7.html#NM1" title="EUCLID_7:NM.1">Orthogonal_Basis</a> of <font color="Olive" title="b1">n</font> holds   <a href="card_1.html#K1" title="CARD_1:func.1">card</a> <font color="Olive" title="b2">B</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b1">n</font></div></div>
