Hi, all. My friend is teaching a physics class. She personally has worked out and LaTeXed solutions to many of the problems from the class text with the intention of posting them online so students can use them to study. I'm mildly concerned that this might violate some sort of copyright since the class text is copyrighted... Do you guys know if there are any legal issues here? I'm mostly just curious, since a physics problem is a kind of abstract thing and it seems strange that you could have legal ownership over it, but maybe you can! Thanks and regards.