_and_orderings.html#boost_icl.function_reference.equivalences_and_orderings.synopsis">Synopsis</a></span></dt>
<dt><span class="section"><a href="equivalences_and_orderings.html#boost_icl.function_reference.equivalences_and_orderings.less_on_intervals">Less
        on Intervals</a></span></dt>
<dt><span class="section"><a href="equivalences_and_orderings.html#boost_icl.function_reference.equivalences_and_orderings.lexicographical_ordering">Lexicographical
        Ordering</a></span></dt>
<dt><span class="se