Author: David_Corfield Format: MarkdownItexNeatened things up a little.
<a href="https://ncatlab.org/nlab/revision/diff/topological+insulator/10">diff</a>, <a href="https://ncatlab.org/nlab/revision/topological+insulator/10">v10</a>, <a href="https://ncatlab.org/nlab/show/topological+insulator">current</a>