aleph-null
English
Proper noun
- (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 one-to-one correspondence with them, and are therefore countable, enumerable or denumerable.
Synonyms
- (first transfinite cardinal number): aleph-naught, aleph-nought, aleph-zero, ℵ0