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<a NAME="E1:2_1_1"/>
 <a href="finance1.html#NK1" title="FINANCE1:NK.1">halfline_fin</a> (<font color="Maroon" title="c1">a</font>,<font color="Maroon" title="c2">r</font>) <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1"><a href="rcomp_1.html#K3" title="RCOMP_1:func.3">[.</a><span class="default"><font color="Maroon" title="c1">a</font>,<font color="Maroon" title="c2">r</font></span><a href="rcomp_1.html#K3" title="RCOMP_1:func.3">.[</a></span>
 
;<br/>
<span class="kw">hence </span><a NAME="E2:2_1_1"/>
 <a href="finance1.html#NK1" title="FINANCE1:NK.1">halfline_fin</a> (<font color="Maroon" title="c1">a</font>,<font color="Maroon" title="c2">r</font>) is   <a href="subset_1.html#NM2" title="SUBSET_1:NM.2">Subset</a> of <a href="numbers.html#K1" title="NUMBERS:func.1">REAL</a>
 ; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> verum</span><br/>


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