Definition:Euclid's Definitions - Book X (III)/4 - Fourth Apotome

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Definition

In the words of Euclid:

Again, if the square on the whole be greater than the square on the annex by the square on a straight line incommensurable with the whole, then, if the whole be commensurable in length with the rational straight line set out, let the apotome be called a fourth apotome;

(The Elements: Book $\text{X (III)}$: Definition $4$)


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