an class="comment">// <a class="link" href="on_codomain_mo_idp59038912.html#idp59042032-bb">public static functions</a></span>
  <span class="keyword">static</span> <span class="keyword">void</span> <a class="link" href="on_codomain_mo_idp59038912.html#idp59042592-bb"><span class="identifier">subtract</span></a><span class="special">(</span><span class="identifier">Type</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Type