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Do Cartesian Universals Have Objective Reality? Genus, Species, and Modes of Thinking without Representata

An AI-generate hyperrealistic image by Nano Banana Pro of René Descartes seated thoughtfully in a 17th-century study beside a chalkboard illustrating concepts of genus, species, and modes of thinking, with a brass plaque posing the question “Do Cartesian Universals Have Objective Reality?” and the URL https://drdavidcring.net/descartes-ideas displayed below.

[NOTE: Words below in magenta or blue underlined are clickable hyperlinks. For many of the hyperlinked glossary items you may need to scroll down to see that entry after clicking on it. Hit the back button in your browser afterwards to return to this post.] Medium Abstract This post examines whether the five Porphyrian predicables—genus, species, differentia, proprium (typically translated […]