Timeline for $P^2$-irreducibility of a $3$-manifold
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
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| Sep 5, 2021 at 19:23 | comment | added | Sam Nead | @Adterram: "Exercise" says clearly to the reader "there is work to do here". "It is not hard to show" has a similar feel but, more often than not, gives an incorrect sense of the difficulty of the task. Gowers gives evidence, here: gowers.wordpress.com/2008/09/17/princeton-companion-errata | |
| Sep 5, 2021 at 13:28 | comment | added | Adterram | A comment: The phrase "Exercise A/B etc." should be avoided. Either say it is not hard to say or give the necessary sentence of explanation. | |
| Sep 4, 2021 at 15:29 | history | edited | Sam Nead | CC BY-SA 4.0 |
added labels.
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| Sep 3, 2021 at 12:28 | history | answered | Sam Nead | CC BY-SA 4.0 |