vault backup: 2026-01-18 23:16:39

3 months ago · 03817121f6
parent 991cc7a992
commit 03817121f6
1 changed files with 0 additions and 1 deletions
--- a/一些有趣的线代题目.md
+++ b/一些有趣的线代题目.md
@ -21,7 +21,6 @@ $$
 \text{rank}((A - E) - (A - 2E)) = n \leq \text{rank}(A - E)
 $$

-
 $$
 \therefore \text{rank}(A - 2E) + \text{rank}(A - E) = n
 $$