Author: Urs Format: MarkdownItexThis entry was missing, as David C. pointed out [here](https://nforum.ncatlab.org/discussion/8442/dihedron/?Focus=68313#Comment_68313)
<a href="https://ncatlab.org/nlab/revision/binary+cyclic+group/1">v1</a>, <a href="https://ncatlab.org/nlab/show/binary+cyclic+group">current</a>
This entry was missing, as David C. pointed out here
Author: DavidRoberts Format: MarkdownItexAdded a comment as to the triviality or otherwise of the extension, in the even and odd cases.
<a href="https://ncatlab.org/nlab/revision/diff/binary+cyclic+group/2">diff</a>, <a href="https://ncatlab.org/nlab/revision/binary+cyclic+group/2">v2</a>, <a href="https://ncatlab.org/nlab/show/binary+cyclic+group">current</a>
Added a comment as to the triviality or otherwise of the extension, in the even and odd cases.