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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E66">Th50</font></span>: <a NAME="T49"><span class="comment"><font color="firebrick">:: CAT_6:49</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">C1</font>, <font color="Olive" title="b2">C2</font> being   <a href="cat_1.html#NM4" title="CAT_1:NM.4">Category</a>  st  <a href="cat_6.html#K18" title="CAT_6:func.18">alter</a> <font color="Olive" title="b1">C1</font> <a href="cat_6.html#NR4" title="CAT_6:NR.4">~=</a>  <a href="cat_6.html#K18" title="CAT_6:func.18">alter</a> <font color="Olive" title="b2">C2</font> holds <br/><font color="Olive" title="b1">C1</font> <a href="isocat_1.html#NR2" title="ISOCAT_1:NR.2">~=</a> <font color="Olive" title="b2">C2</font></div></div>
