We found 22 dictionaries that define the word set theory:

General (14 matching dictionaries)

1. set theory: Merriam-Webster
2. set theory: Oxford Learner's Dictionaries
3. set theory: American Heritage Dictionary of the English Language
4. set theory: Collins English Dictionary
5. set theory: Vocabulary.com
6. set theory: Wiktionary
7. set theory: The Wordsmyth English Dictionary-Thesaurus
8. set theory: Infoplease Dictionary
9. set theory: Dictionary.com
10. Set theory (music), Set theory: Wikipedia, the Free Encyclopedia
11. set theory: Rhymezone
12. set theory: FreeDictionary.org
13. set theory: Mnemonic Dictionary
14. set theory: TheFreeDictionary.com

Computing (3 matching dictionaries)

15. set theory: Free On-line Dictionary of Computing
16. set theory: CCI Computer
17. Set Theory (disambiguation), set theory: Encyclopedia

Medicine (1 matching dictionary)

18. online medical dictionary (No longer online)

Miscellaneous (1 matching dictionary)

19. set theory: Stanford Encyclopedia of Philosophy

Science (3 matching dictionaries)

20. Set Theory: Eric Weisstein's World of Mathematics
21. set theory: PlanetMath Encyclopedia
22. FOLDOP - Free On Line Dictionary Of Philosophy (No longer online)

(Note: See set_theoretic as well.)

Definitions from Wiktionary (set theory) ▸ noun:  (mathematics) The mathematical theory of sets. ▸ noun:  (music) Musical set theory, a systematic approach to describing musical objects and their relationships. Similar: sets, set operation, set-builder notation, countable set, collection, family, theory, type theory, setoid, group theory, more... Opposite: fuzzy logic, non-classical logic, probabilistic logic, modal logic Types: finite set, empty set, subset, superset, power set, universal set, intersection, union, more... Phrases: Zermelo set theory, axiomatic set theory, zermelo fraenkel set theory, Descriptive set theory, Naive set theory, more... ▸ Words similar to set theory ▸ Usage examples for set theory ▸ Idioms related to set theory ▸ Wikipedia articles (New!) ▸ Words that often appear near set theory ▸ Rhymes of set theory ▸ Invented words related to set theory