 type families.
</p></div></div></li><li class="indented0 " name="provingground.interface" group="Ungrouped" fullComment="no" data-isabs="false" visbl="pub"><a id="interface"></a><a id="interface:interface"></a> <span class="permalink"><a href="../provingground/interface/index.html" title="Permalink"><i class="material-icons"></i></a></span> <span class="modifier_kind"><span class="modifier"></span> <span class="kind">package</span></span> <span class="symbol"><a href="interface/index.html" title=""><spa