<?xml version="1.0"?>
<div class="add">

<a NAME="E1:30_1_1"/>
 <a href="trees_2.html#K8" title="TREES_2:func.8">branchdeg</a> <font color="Maroon" title="c2">v</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="card_1.html#K5" title="CARD_1:func.5">card</a> <span class="p1">(<span class="default"><a href="trees_2.html#K1" title="TREES_2:func.1">succ</a> <font color="Maroon" title="c2">v</font></span>)</span>
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="trees_2.html#D12" title="TREES_2:def.12">TREES_2:def 12</a></span>;<br/>
<span class="kw">hence </span><a NAME="E2:30_1_1"/>
 <a href="trees_2.html#K8" title="TREES_2:func.8">branchdeg</a> <font color="Maroon" title="c2">v</font> is    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of  <a href="numbers.html#K5" title="NUMBERS:func.5">NAT</a> 
 ; <a class="txt" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> verum</span><br/>


</div>
