Comment by ahoka

"Yes what? Both oxcaml and ocaml have compatible LGPL licenses so I didn't get your argument."

LGPL is a license for distribution, the copyright of the original authors is retained (unless signed away in a contribution agreement, usually to an organization).

"Are you saying that I cannot learn from a copyrighted book written by some respected and known author, and then apply that knowledge elsewhere because I would be risking to be sued for copyright infringement?"

This was not the case here, so not sure how that is related in any way?