Word.ws English Dictionary

principal ultrafilter

principal ultrafilter noun: an ultrafilter such that every set belonging to it is the superset of some fixed singleton set.

Noun

principal ultrafilter (plural principal ultrafilters)

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

Antonyms of principal ultrafilter

Forms of principal ultrafilter

pluralprincipal ultrafilters

Questions about principal ultrafilter

What does principal ultrafilter mean?
Principal ultrafilter means an ultrafilter such that every set belonging to it is the superset of some fixed singleton set.
What part of speech is principal ultrafilter?
Principal ultrafilter is a noun.
What is the plural of principal ultrafilter?
The plural of principal ultrafilter is principal ultrafilters.

Words near principal ultrafilter in the dictionary

  1. principal record
  2. principal root
  3. principal roots
  4. principal square root
  5. principal square roots
  6. principal ultrafilter
  7. principal ultrafilters
  8. principal-agent problem
  9. principal-agent problems
  10. principalisation
  11. principalism

Source and license

Adapted from Wiktionary: principal ultrafilter (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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