We found 3 dictionaries that define the word countable sets:

General (2 matching dictionaries)

1. countable sets: Wiktionary
2. Countable sets: Wikipedia, the Free Encyclopedia

Science (1 matching dictionary)

3. A Glossary of Mathematical Terms (No longer online)

▸ Words similar to countable sets ▸ Usage examples for countable sets ▸ Idioms related to countable sets ▸ Wikipedia articles (New!) ▸ Words that often appear near countable sets ▸ Rhymes of countable sets ▸ Invented words related to countable sets