Proposition: Prop. 9.28: Odd Number multiplied by Even Number is Even
Euclid's Formulation
If an odd number makes some (number by) multiplying an even (number) then the created (number) will be even.
* For let the odd number $A$ make $C$ (by) multiplying the even (number) $B$.
* I say that $C$ is even.
Modern Formulation
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Table of Contents
Proofs: 1
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References
Adapted from (subject to copyright, with kind permission)
 Fitzpatrick, Richard: Euclid's "Elements of Geometry"
Adapted from CC BYSA 3.0 Sources:
 Prime.mover and others: "Pr∞fWiki", https://proofwiki.org/wiki/Main_Page, 2016