In information science, an ontology encompasses a representation, formal naming, and definitions of the categories, properties, and relations between the concepts, data, or entities that pertain to on
Top-level ontology chart
Detail of Tree of Knowledge after Diderot & d'Alembert's Encyclopédie, by Chrétien Frédéric Guillaume Roth
Metaphysics
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Metaphysics is the branch of philosophy that examines the basic nature or most fundamental structure of reality. It is traditionally seen as the study of mind-independent features of the world, but so
The beginning of Aristotle's Metaphysics, one of the foundational texts of the discipline
Immanuel Kant conceived metaphysics from the perspective of critical philosophy as the study of the principles underlying all human thought and experience.
David Hume criticizes metaphysicians for trying to gain knowledge outside the field of sensory experience.
Boethius's theory of universals influenced many subsequent metaphysicians.