Rights to course materials

Courses in L-System are made by their authors. The platform does not check where the material came from and cannot do so — responsibility for the rights lies with whoever uploaded the course.

Three levels of visibility

A course does not have to be public. What we ask of the author depends on the level chosen.

Only me

A personal set of notes. Nobody but the author sees it; no assurances are needed.

By link

Whoever the author gave the keyed link to has access. The course does not enter the catalog and is not reviewed. Responsibility for the material stays with the author.

In the catalog

The course is visible to everyone and goes through review. The author confirms that the material is theirs or that the licence allows publication, and states what the course is based on.

What may be taken from someone else’s textbook

Copyright protects expression, not facts. A list of topics, a set of concepts and the order of studying them are the factual side of a subject. Particular wordings, explanations, examples and exercises are expression, and moving them into a course is not allowed.

A course written anew after someone else’s syllabus and a course with transplanted exercises are different things, whether or not the source is credited. Crediting the source does not replace permission.

Reporting an infringement

If a course infringes your rights, write to andreykuralekh@gmail.com and state: the address of the course, which work is affected, what proves your rights, and a contact for the reply.

We review the report and, if it is confirmed, take the course down. The author is notified with the reason and may respond. Authors who infringe repeatedly lose access to publishing.

This text describes how the service works and is not legal advice.