Definition:Ordinal/Informal Definition
< Definition:Ordinal(Redirected from Definition:Ordinal Number (Position in Sequence))
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Definition
A natural number considered as an indication of the position in a sequence of objects is referred to as an ordinal number.
Also see
- Results about ordinal numbers can be found here.
Sources
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): ordinal number: 1.
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): ordinal number: 1.
- 2010: Raymond M. Smullyan and Melvin Fitting: Set Theory and the Continuum Problem (revised ed.) ... (previous) ... (next): Chapter $5$: Ordinal Numbers: $\S 1$ Ordinal numbers