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Meaning of principal ultrafilter | Babel Free

Noun CEFR B2

Definitions

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

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

principal-agent problem principal, headmaster principalist Principalities Principality Principality of Abkhazia

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