The revisions let you track differences between multiple versions of a post.

fixed cut

Inserted a brief mention of the distinction between a left action and a right action.

link to using actions to show nontriviality

Added some introductory text, and quick descriptions of articles.

I've de-stubbed this article as it links to at least one piece of genuine mathematical content.

View a list of all articles.

5 years 4 weeksago5 years 13 weeksago5 years 14 weeksago5 years 43 weeksago6 years 12 weeksago