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<div><span class="kw">theorem </span><a NAME="T13"><span class="comment"><font color="firebrick">:: MATRIXR2:13</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">a</font>, <font color="Olive" title="b2">b</font> being   <a href="xreal_0.html#NM1" title="XREAL_0:NM.1">Real</a><br/>  for <font color="Olive" title="b3">A</font> being   <a href="matrix_0.html#NM1" title="MATRIX_0:NM.1">Matrix</a> of <a href="numbers.html#K1" title="NUMBERS:func.1">REAL</a> holds  <span class="p1">(<span class="default"><font color="Olive" title="b1">a</font> <a href="xcmplx_0.html#K6" title="XCMPLX_0:func.6">-</a> <font color="Olive" title="b2">b</font></span>)</span> <a href="matrixr1.html#K7" title="MATRIXR1:func.7">*</a> <font color="Olive" title="b3">A</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1">(<span class="default"><font color="Olive" title="b1">a</font> <a href="matrixr1.html#K7" title="MATRIXR1:func.7">*</a> <font color="Olive" title="b3">A</font></span>)</span> <a href="matrixr1.html#K5" title="MATRIXR1:func.5">-</a> <span class="p1">(<span class="default"><font color="Olive" title="b2">b</font> <a href="matrixr1.html#K7" title="MATRIXR1:func.7">*</a> <font color="Olive" title="b3">A</font></span>)</span></div></div>
