alephnull
Definition from Wiktionary, the free dictionary
English[edit]
Proper noun[edit]
 (set theory) The first of the transfinite cardinal numbers; corresponds to the number of positive integers, also called natural numbers. Georg Cantor showed that even all the rational numbers could be put in onetoone correspondence with them, and are therefore countable, enumerable or denumerable.
Synonyms[edit]
 (first transfinite cardinal number): alephnaught, alephnought, alephzero, ℵ₀
Related terms[edit]
Translations[edit]
first of the transfinite cardinal numbers
