-
Notifications
You must be signed in to change notification settings - Fork 297
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
feat(category_theory/punit): A groupoid is equivalent to punit iff it…
… has a unique arrow between any two objects (#12726) In terms of topology, when this is used with the fundamental groupoid, it means that a space is simply connected (we still need to define this) if and only if any two paths between the same points are homotopic, and contractible spaces are simply connected.
- Loading branch information
1 parent
cb4ffa6
commit c61c5af
Showing
2 changed files
with
30 additions
and
1 deletion.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters