<?xml version="1.0"?>
<div>:: <span class="kw">deftheorem </span><span class="lab"><font color="Green" title="E40">Def16</font></span>   defines <a href="surreal0.html#V3" title="SURREAL0:attr.3">surreal-membered</a> <a onclick="hs(this)" href="javascript:()">SURREAL0:def 16 : <br/></a><span> for <font color="Olive" title="b1">X</font> being    <a href="hidden.html#M2" title="HIDDEN:mode.2">set</a>  holds <br/> ( <font color="Olive" title="b1">X</font> is  <a href="surreal0.html#V3" title="SURREAL0:attr.3">surreal-membered</a>  iff  for <font color="Olive" title="b2">o</font> being    <a href="hidden.html#M1" title="HIDDEN:mode.1">object</a>   st <font color="Olive" title="b2">o</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <font color="Olive" title="b1">X</font> holds <br/><font color="Olive" title="b2">o</font> is  <a href="surreal0.html#V2" title="SURREAL0:attr.2">surreal</a>  );<br/></span></div>
