Henry Mendell is professor of ancient philosophy, history of ancient mathematics and science, philosophy of science and metaphysics at the California State University, Los Angeles.

As a senior fellow and member of Research Group “Cosmology” (D-I-1), he examines how the peoples of antiquity may have envisaged the Cosmos. To this end, the group is developing virtual cosmic models that not only visualize ancient calculations, but often reveal the assumptions upon which they are based. These models will enable the user to distinguish between diverse approaches. Mendell also researches Aristotelian logic, conceptions of quantitative relations in Greek mathematics and the relation between the theory of principles and mathematical disciplines.