Author: varkor Format: MarkdownItexAdded the original reference.
<a href="https://ncatlab.org/nlab/revision/diff/multicategory/34">diff</a>, <a href="https://ncatlab.org/nlab/revision/multicategory/34">v34</a>, <a href="https://ncatlab.org/nlab/show/multicategory">current</a>