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<div><span class="kw">theorem </span><a NAME="T4"><span class="comment"><font color="firebrick">:: INT_1:4</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">r</font> being   <a href="xreal_0.html#NM1" title="XREAL_0:NM.1">Real</a>  st <font color="Olive" title="b1">r</font> is   <a href="int_1.html#NM1" title="INT_1:NM.1">Integer</a> holds <br/>( <font color="Olive" title="b1">r</font> <a href="xcmplx_0.html#K2" title="XCMPLX_0:func.2">+</a> 1 is   <a href="int_1.html#NM1" title="INT_1:NM.1">Integer</a> &amp; <font color="Olive" title="b1">r</font> <a href="xcmplx_0.html#K6" title="XCMPLX_0:func.6">-</a> 1 is   <a href="int_1.html#NM1" title="INT_1:NM.1">Integer</a> ) ;<br/></div></div>
