Proposition: Prop. 9.25: Even Number minus Odd Number is Odd
(Proposition 25 from Book 9 of Euclid's “Elements”)
If an odd (number) is subtracted from an even number then the remainder will be odd.
* For let the odd (number) $BC$ have been subtracted from the even number $AB$.
* I say that the remainder $CA$ is odd.
(not yet contributed)
Table of Contents
Thank you to the contributors under CC BY-SA 4.0!
Adapted from (subject to copyright, with kind permission)
- Fitzpatrick, Richard: Euclid's "Elements of Geometry"
Adapted from CC BY-SA 3.0 Sources:
- Prime.mover and others: "Pr∞fWiki", https://proofwiki.org/wiki/Main_Page, 2016