Author: Urs Format: MarkdownItexadded a few more words to this entry, but it remains a stub
<a href="https://ncatlab.org/nlab/revision/diff/curved+spacetime/2">diff</a>, <a href="https://ncatlab.org/nlab/revision/curved+spacetime/2">v2</a>, <a href="https://ncatlab.org/nlab/show/curved+spacetime">current</a>
added a few more words to this entry, but it remains a stub