en principal ultrafilter (n)
― IsA ⟶
Weight: 1.0
en ultrafilter Source: English Wiktionary
en principal ultrafilter (n)
― IsA ⟶
Weight: 1.0
en principal filter Source: English Wiktionary
en principal ultrafilter
― IsA ⟶
Weight: 1.0
en ultrafilter (n) Source: English Wiktionary