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<a NAME="E1:6"/>
 <a href="xcmplx_0.html#K4">-</a> <span class="p1">(<span class="default"><a href="xcmplx_0.html#K4">-</a> <span class="p2">(<span class="default">1 <a href="xcmplx_0.html#K7">/</a> <a href="fib_num.html#K1">tau</a> </span>)</span></span>)</span> <a href="xxreal_0.html#NR4" target="_self">&gt;</a> 0
 
<b>by </b><i><a class="ref" href="fib_num2.html#T35">FIB_NUM2:35</a>, <a class="ref" href="real_2.html#T127">REAL_2:127</a></i>;<br/>
<b>hence </b><a NAME="E2:6"/>
 <a href="fib_num.html#K2">tau_bar</a>  <a href="xxreal_0.html#NR3" target="_self">&lt;</a> 0
 <b>by </b><i><a class="ref" href="fib_num2.html#T38">FIB_NUM2:38</a>, <a class="ref" href="xreal_1.html#T60">XREAL_1:60</a></i>;<br/>


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