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<div><span class="kw">theorem </span><a NAME="T57"><span class="comment"><font color="firebrick">:: FINSEQ_1:57</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> holds   <a href="card_1.html#K4" title="CARD_1:func.4">card</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K2" title="FINSEQ_1:func.2">Seg</a> <font color="Olive" title="b1">n</font></span>)</span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b1">n</font> <span class="kw">by</span> <span class="lab"><a class="txt" href="finseq_1.html#E13"><span class="lab"><font color="Green" title="E9">Lm1</font></span></a>, <a class="ref" href="card_1.html#D2" onmouseover="rs('card_1/D2')" onmouseout="rh()">CARD_1:def 2</a></span>;<br/></div></div>
