Abstract

Chapters III–IV of De mixtione represent a new beginning of the treatise where the Stoics, the main target of Alexander’s critical assessment of preceding theories of blending, are presented in a more systematic manner than in the first chapters. Closer reading reveals that the context of the Stoic theory which Alexander is reporting is most probably the ontological query into the unity of the cosmos on its different levels in which the challenge is to distinguish blendings from other types of unified objects. This can be done thanks to corresponding common notions, although these notions cannot stand for a firm and detailed grasp of the unified objects in question but are rather the means to make one acknowledge the existence of blending as a special kind of unity (between fusion and juxtaposition). The existence of this kind of unity is then supported by examples of analogical processes in which a result is achieved by the mutual interaction of two bodies upon each other or their mutual help. The conclusion should be that the Stoics’ effort to present a special kind of unity was part of their general account of the unity of the world which however did not include a claim about the blending of the first principles (insofar as cosmic pneuma is not such a principle).