Definition:Euclid's Definitions - Book VII/7 - Odd Number
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Definition
In the words of Euclid:
- An odd number is that which is not divisible into two equal parts, or that which differs by an unit from an even number.
(The Elements: Book $\text{VII}$: Definition $7$)
Sources
- 1926: Sir Thomas L. Heath: Euclid: The Thirteen Books of The Elements: Volume 2 (2nd ed.) ... (previous) ... (next): Book $\text{VII}$. Definitions