bn:00057820n
Noun Concept
Categories: Wellfoundedness, Ordinal numbers
EN
ordinal number  ordinal  no.  countable ordinal  countable ordinals
EN
The number designating place in an ordered sequence WordNet 3.0
English:
set theory
mathematics
Definitions
Examples
Relations
Sources
EN
In set theory, an ordinal number, or ordinal, is a generalization of ordinal numerals Wikipedia
Order type of a well-ordered set Wikidata
An ordinal number such as first, second and third. Wiktionary
A natural number used to denote position in a sequence. Wiktionary
Arithmetic: number used to denote position in a sequence. Wiktionary (translation)
EN
The most common numerals in Latin, as in English, are the "cardinals"...and the "ordinals"... — F. M. Wheelock, Wheelock’s Latin, 6th ed. revised (2005), p97. Wiktionary
In the expression a3, the "3" is an ordinal number. Wiktionary