Timeline for Is there any monoid in which the product of two non-invertible elements could be invertible?
Current License: CC BY-SA 3.0
3 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 17, 2016 at 3:58 | history | undeleted | Dan Ramras | ||
| Feb 17, 2016 at 3:56 | history | deleted | Dan Ramras | via Vote | |
| Feb 17, 2016 at 3:56 | history | answered | Dan Ramras | CC BY-SA 3.0 |