G-delta set
In topology, X, a G-delta set (or Gδ set) is a countable intersection of open sets. In metrizable spaces, every closed set is a Gδ set.The complement of a Gδ set is an Fσ. In a metrizable space, every open set is an Fσ set.
|
G-delta setIn topology, X, a G-delta set (or Gδ set) is a countable intersection of open sets. In metrizable spaces, every closed set is a Gδ set.The complement of a Gδ set is an Fσ. In a metrizable space, every open set is an Fσ set. |
 Site Sponsors AC Units Baltimore Harbor Boot Camp Grads Bra Size Burkittsville College Hotels Digital Harbor Free Cell Phones Golden Hare Travel Golf Vacations Golf Courses Gourmet Hair Styles Hippodrome iWoman Lesson Plans Maryland Hotels MD Genealogy Minor League Stuff Motel Site Ocean City OC Real Estate Old Agers Office Supplies Orlando Pet Friendly Hotel Room Prices Savannah, GA Ski Vacations South Baltimore Student Teaching Travel Sources University Hotels Visit Military Bases Washington, DC | |||||||||
| Brought to you by NoChildLeftBehind.com and the Beaches and Towns Network, LLC. | |||||||||||