the sixteenth century author gedaliah ibn yaḥyah also credited ha-levi as the author of the anonymous "sefer ha-chinuch" ("book of education"), although this claim has been rejected by many scholars due to discrepancies between opinions expressed in "bedek habayith" and the "chinuch". this has led to the conclusion that the true author of the sefer ha-chinuch was a different "aaron ha-levi of barcelona", who was a student of shlomo ben aderet, rather than his colleague. more recently, professor israel ta-shma of the hebrew university of jerusalem has presented that the author of "sefer ha-chinuch" was in fact rabbi aaron's brother, pinchas ben joseph ha-levi, who had written the work for his son, joshua.