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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E47">Th47</font></span>: <a NAME="T47"><span class="comment"><font color="firebrick">:: SIN_COS9:47</font></span><br/></a><div class="add"><a href="sin_cos9.html#K1" title="SIN_COS9:func.1">arctan</a> <a href="partfun1.html#K2" title="PARTFUN1:func.2">|</a> <span class="p1"><a href="rcomp_1.html#K1" title="RCOMP_1:func.1">[.</a><span class="default"><span class="p2">(<span class="default"><a href="xcmplx_0.html#K4" title="XCMPLX_0:func.4">-</a> 1</span>)</span>,1</span><a href="rcomp_1.html#K1" title="RCOMP_1:func.1">.]</a></span> is  <a href="valued_0.html#V5" title="VALUED_0:attr.5">increasing</a> </div></div>
