Author: Mike Shulman Format: MarkdownItexReplace HTS by 2LTT, which is the modern version.
<a href="https://ncatlab.org/nlab/revision/diff/fibrant+type/4">diff</a>, <a href="https://ncatlab.org/nlab/revision/fibrant+type/4">v4</a>, <a href="https://ncatlab.org/nlab/show/fibrant+type">current</a>