“®ŽŒƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
open (transitive) =
1.
‚ ‚¯‚é
2.
‚‚Ƃ߂é
3.
‚Ý‚ª‚
4.
‚¨‚Ú‚¦‚é
ƒŒƒxƒ‹4.
•ÏX
SDAL“‡‰pŒêŠwZ