ABSTRACT
Obviously, the discussion of the problem which has been opened here requires more historical and biobibliographical research, and one hopes this is a task which will be undertaken in the future. It is also to be hoped that a clearer picture of al-Îasan will emerge, together with a better understanding of his works. Perhaps at the same time it will be possible to reveal more about MuÌammad’s works on philosophy and logic, given his relationship with Ibn al-SamÌ and Ibn al-™ayyib of the Baghdad School, whose works are likely to contain items of great interest.72
