Construction of First Binomial Straight Line/Mistake

Source Work
The mistake can be seen in the edition as published by Dover: ISBN 0-486-60089-0.

Mistake

 * Therefore $EF$ is a first binomial straight line.

See the construction:


 * Euclid-X-48.png

$EG$ is the binomial which the rest of the proof is to demonstrate is a first binomial.

This line therefore should read:
 * Therefore $EG$ is a first binomial straight line.