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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E35">Th30</font></span>: <a NAME="T30"><span class="comment"><font color="firebrick">:: ALGSTR_4:30</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="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1"> { <span class="default"> <span class="p2">(<span class="default"><font color="Olive" title="b2">w</font> <a href="xfamily.html#K1" title="XFAMILY:func.1">`1</a></span>)</span> where <font color="Olive" title="b2">w</font> is   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <span class="p1">(<span class="default"><a href="algstr_4.html#K14" title="ALGSTR_4:func.14">free_magma</a> <font color="Olive" title="b1">X</font></span>)</span> :  <a href="algstr_4.html#K15" title="ALGSTR_4:func.15">length</a> <font color="Olive" title="b2">w</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 1 </span> } </span> </div></div>
