Euclid:Proposition/X/3/Porism

Proposition

In the words of Euclid:

From this it is manifest that, if a magnitude measure two magnitudes, it will also measure their greatest common measure.

(The Elements: Book $\text{X}$: Proposition $3$ : Porism)

Sources

• 1926: Sir Thomas L. Heath: Euclid: The Thirteen Books of The Elements: Volume 3 (2nd ed.) ... (previous) ... (next): Book $\text{X}$. Propositions