Axiom:Euclid's Common Notion 1
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Common Notion
In the words of Euclid:
- Things which are equal to the same thing are also equal to each other.
(The Elements: Book $\text{I}$: Common Notions: Common Notion $1$)
Sources
- 1926: Sir Thomas L. Heath: Euclid: The Thirteen Books of The Elements: Volume 1 (2nd ed.) ... (previous) ... (next): Book $\text{I}$. Common Notions
- 2008: Ian Stewart: Taming the Infinite ... (previous) ... (next): Chapter $2$: The Logic of Shape: Euclid