Timeline for Examples of interesting false proofs
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 23, 2012 at 6:49 | comment | added | Fedor Petrov | Another antidote is the following: if $\det(B-A)=0$, it does not imply that $p(B)=0$. So why should it imply for $B=A$? | |
| Apr 23, 2012 at 2:25 | comment | added | Mariano Suárez-Álvarez | @domenico: that's as close to a funny mathematical joke as we are going to get :D | |
| Apr 22, 2012 at 4:44 | comment | added | Angelo | To Domenico: That's very good, I had never thought of that. | |
| Apr 21, 2012 at 17:15 | comment | added | domenico fiorenza | This false proof is so good I've got used to proposing to my students $q(t)=tr(tI-A)$ as an antidote. | |
| Apr 21, 2012 at 15:48 | comment | added | Angelo | It can be made into a correct proof in several ways; unfortunately, they all spoil the pristine elegance of the false proof. | |
| Apr 21, 2012 at 15:46 | comment | added | Martin Brandenburg | Somehow this can be made into a correct proof with the Zariski topology. | |
| Apr 21, 2012 at 14:38 | history | answered | Angelo | CC BY-SA 3.0 |