Timeline for The (co)tangent sheaf of a topological space
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 12, 2019 at 10:48 | comment | added | Michael Bächtold | @user2520938 $D$(const.)=0 holds always. It follows from the Leibniz rule of derivations and $\mathbb{k}$-linearity. | |
| Apr 12, 2019 at 8:41 | comment | added | Michael Bächtold | @user2520938 because any function $g$ can be decomposed as $g=g(x) + (g-g(x))$. The first summand is constant hence vanishes when applying a derivation, the second summand is a function with value zero at $x$. | |
| Apr 12, 2019 at 6:52 | comment | added | user2520938 | why does it suffice to prove this for $f=0$? | |
| Apr 11, 2019 at 21:34 | vote | accept | Qfwfq | ||
| Apr 11, 2019 at 21:11 | history | answered | Tom Goodwillie | CC BY-SA 4.0 |