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<div><span class="kw">theorem </span><a NAME="T14"><span class="comment"><font color="firebrick">:: ALGSPEC1:14</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">X</font> being    <a href="hidden.html#M2" title="HIDDEN:mode.2">set</a>  holds  <font color="Olive" title="b1">X</font> <a href="algspec1.html#K1" title="ALGSPEC1:func.1">-indexing</a> <a href="xboole_0.html#K1" title="XBOOLE_0:func.1">{}</a> <a href="pboole.html#R6" title="PBOOLE:pred.6">=</a>  <a href="partfun1.html#K6" title="PARTFUN1:func.6">id</a> <font color="Olive" title="b1">X</font> ;<br/></div></div>
