Hossein Jorjani First publication: 2026 – 06 – 30 In Aristotelian logic, the species infimae (“lowest species”) occupied the final level of the genus–species hierarchy—the most specific universals that could still apply to more than one individual. They marked the boundary between universal and particular, serving as the lowest kinds that could figure in scientificContinue reading “Excursus 011 – On the Concept of Species”