Byrnify books 11 to 13

[jemmybutton]

https://github.com/jemmybutton/byrne-euclid/blob/master/books11-13.tex

[jemmybutton]

First 7 propositions from book 11 more or less work
books11-13.pdf

[MarcinCiura]

Congratulations on the good start! I have spotted only one issue: in Proposition 11.1, you refer to "...circumferences AC..." while point C lies outside the circle.

[jemmybutton]

Thank you! In the original text this point on the circumference is not referenced directly, instead, it is some unnamed point along BC. I thint it won't do much harm if i simply put point C itself on the circumference 14a98e7
books11-13.pdf

[jemmybutton]

Propositions up to XI.XVI are added be907a8
At this stage the main focus is not on aesthetics, but rather on getting all the tools working and handy.
books11-13.pdf

[jemmybutton]

Propositions up to XI.XXI are added b6db91f
Solid angles look odd.
books11-13.pdf