transitive set
Word Rarity
Rare
Frequency: Zipf frequency 2.76 in modern English
16
Scrabble Score
13
Letters
3
Syllables
8
Unique Chars
Meaning
noun
Any set X such that for any x ∈ X, if y ∈ x then y ∈ X; equivalently, such that if x ∈ X and x is not an urelement then x ⊆ X.