countable in a sentence

Examples

1. (The infimum is over all countable covers of"
2. This restricted set is countable and still forms a basis.
3. Thus it appears that " u " should be countable.
4. Contaminated sources may require dilution to achieve a " countable " membrane.
5. Every open set is a countable union of a collection of these.
6. We can imagine even larger ordinals that are still countable.
7. Every first-countable space is a Fr�chet Urysohn space.
8. Then A \ is a countable group containing C \.
9. It asserts that every strong measure zero set of reals is countable.
10. Every strong Fr�chet Urysohn space has strong countable fan tightness.