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Everything about Ontology

Philosophical study of being

Ontology is the philosophical study of being. It is traditionally understood as the subdiscipline of metaphysics focused on the most general features of reality. As one of the most fundamental concepts, being encompasses all of reality and every entity within it. To articulate the basic structure of being, ontology examines the shared characteristics among all things and investigates their classification into basic types, such as the categories of particulars and universals. Particulars are unique, non-repeatable entities, such as the person Socrates, whereas universals are general, repeatable entities, like the color green. Another distinction exists between concrete objects existing in space and time, such as a tree, and abstract objects existing outside space and time, like the number 5. Systems of categories aim to provide a comprehensive inventory of reality by employing categories such as substance, property, relation, state of affairs, and event. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: OntologyA 5-minute orientation
  2. Skim a recent paper: The Gene Ontology knowledgebase in 2023Influential work since 2022
  3. Pick up a classic book: Sein und ZeitThe most-reprinted book on the subject
  4. Read the landmark paper: Gene Ontology: tool for the unification of biologyCited 38,360 times
  5. Go sideways: ExistenceA closely related topic
  6. Go sideways: MetaphysicsA closely related topic

📖 Definitions

Noun The branch of metaphysics that addresses the nature or essential characteristics of being and of things that exist; the study of being qua being.

Noun In a subject view, or a world view, the set of conceptual or material things or classes of things that are recognised as existing, or are assumed to exist in context, and their interrelations; in a body of theory, the ontology comprises the domain of discourse, the things that are defined as existing, together with whatever emerges from their mutual implications.

Noun The theory of a particular philosopher or school of thought concerning the fundamental types of entity in the universe.

Noun A logical system involving theory of classes, developed by Stanislaw Lesniewski (1886-1939).

🏆 Landmark papers (most cited)

🆕 Influential since 2022

📚 Books worth reading

Ranked by number of editions on Open Library, a rough measure of how lasting a book is.

🔗 Related topics