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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E28">Th25</font></span>: <a NAME="T25"><span class="comment"><font color="firebrick">:: COMPTRIG:25</font></span><br/></a><div class="add"><a href="sin_cos.html#K18" title="SIN_COS:func.18">cos</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"><a href="numbers.html#K5" title="NUMBERS:func.5">0</a>,<a href="sin_cos.html#K28" title="SIN_COS:func.28">PI</a></span><a href="rcomp_1.html#K1" title="RCOMP_1:func.1">.]</a></span> is  <a href="valued_0.html#V6" title="VALUED_0:attr.6">decreasing</a> </div></div>
