# aleph-null

a·leph-null

**MLA Style**

"aleph-null." YourDictionary, n.d. Web. 11 October 2018. <http://www.yourdictionary.com/aleph-null>.

**APA Style**

aleph-null. (n.d.). Retrieved October 11th, 2018, from http://www.yourdictionary.com/aleph-null

## aleph-null

noun

*aleph-zero*.

**MLA Style**

"aleph-null." YourDictionary, n.d. Web. 11 October 2018. <http://www.yourdictionary.com/aleph-null>.

**APA Style**

aleph-null. (n.d.). Retrieved October 11th, 2018, from http://www.yourdictionary.com/aleph-null

- (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*.

**MLA Style**

"aleph-null." YourDictionary, n.d. Web. 11 October 2018. <http://www.yourdictionary.com/aleph-null>.

**APA Style**

aleph-null. (n.d.). Retrieved October 11th, 2018, from http://www.yourdictionary.com/aleph-null