Proposition: Prop. 9.33: Number whose Half is Odd is Even-Times Odd
If a number has an odd half then it is an even-times-odd (number) only.
* For let the number $A$ have an odd half.
* I say that $A$ is an even-times-odd (number) only.
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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