Similar to 部分位相空間
0次元
Zero-dimensional space1の分割
Partition of unityAMS-TeX
Fσ集合
Fσ setGδ集合
Gδ setN連結
Homotopical connectivityT1空間
T1 spaceT0空間
アレクサンドロフ拡大
Alexandroff extension0
01
1▲1 trends2
23
3▲1 trends4
45
56
67
78
89
9485
485 (number)488
488 (number)499
499 (number)508
508 (number)▼-2 trends514
514 (number)▲1 trends563
563 (number)587
587 (number)708
708 (number)839
839 (number)