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<div><span class="kw">theorem </span><a NAME="T2"><span class="comment"><font color="firebrick">:: VECTMETR:2</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">V</font> being   non  <a href="struct_0.html#V2" title="STRUCT_0:attr.2">empty</a>   <a href="metric_1.html#L1" title="METRIC_1:struct.1">MetrStruct</a>  holds <br/> (  <a href="struct_0.html#K3" title="STRUCT_0:func.3">id</a> <font color="Olive" title="b1">V</font> is  <a href="funct_2.html#V2" title="FUNCT_2:attr.2">onto</a>  &amp;  <a href="struct_0.html#K3" title="STRUCT_0:func.3">id</a> <font color="Olive" title="b1">V</font> is  <a href="vectmetr.html#V3" title="VECTMETR:attr.3">isometric</a>  ) ;<br/></div></div>
