Euclid:Proposition/XI/1
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Proposition
In the words of Euclid:
- A part of a straight line cannot be in the plane of reference and part in a plane more elevated.
(The Elements: Book $\text{XI}$: Proposition $1$)
Sources
- 1926: Sir Thomas L. Heath: Euclid: The Thirteen Books of The Elements: Volume 3 (2nd ed.) ... (previous) ... (next): Book $\text{XI}$. Propositions