Author: RodMcGuire Format: MarkdownItexupdated "counterxample" link from its ancient nForum location
<a href="https://ncatlab.org/nlab/revision/diff/Hasse+n-graph/9">diff</a>, <a href="https://ncatlab.org/nlab/revision/Hasse+n-graph/9">v9</a>, <a href="https://ncatlab.org/nlab/show/Hasse+n-graph">current</a>
updated “counterxample” link from its ancient nForum location