 While the Summulae provide something like a basic introduction to the logical topics discussed at the time, Soto’s In dialecticam Aristotelis commentarii (Salamanca 1543) contains philosophical reflections on questions such as whether logic is a science and if so, what kind of logic, the logica docens in contrast to logica utens, which is a “mode of knowing”, and whether the subject of dialectics is an ens rationis (Di Liso 2000: 221–250). These reflections are presented within the context of a selective commentary on the Aristotelian Organon, omitting De interpretatione and the Analytica Priora, which were treated in the Summulae (ibid.). He also wrote Super octo libros Physicorum commentarii and Super octo libros Physicorum quaestiones as part of the Artes liberales course.