Similar to 射影的対象
5項補題
Five lemma9項補題
Nine lemma
AB5 圏
AB5 category
Invariant basis number
Invariant basis number
Tor関手
Tor functor
アスコリ＝アルツェラの定理
Arzelà–Ascoli theorem
始対象と終対象
Initial and terminal objectsHorseshoe lemma
Horseshoe lemma
0
0▼-1 trends
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
12345679
数学
Mathematics
0.999...
0.999...
0次元
Zero-dimensional space
0の0乗
Zero to the power of zero
1次元
One-dimensional space1+1
1+1+1+1+…
1 + 1 + 1 + 1 + ⋯
1+2+3+4+…
1 + 2 + 3 + 4 + ⋯
1+2+4+8+…
1 + 2 + 4 + 8 + ⋯