principal ultrafilter

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Contents

1 English
- 1.1 Noun
  - 1.1.1 Antonyms
  - 1.1.2 Hypernyms

English [edit]

Noun [edit]

principal ultrafilter (plural principal ultrafilters)

(mathematics) An ultrafilter such that every set belonging to it is the superset of some fixed singleton set.

Antonyms [edit]

free ultrafilter

Hypernyms [edit]

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