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English-language translations of
Ὄργανον (Organon)
by Aristotle

(ca. 340 BC)
arranged by Andronicus of Rhodes
Aristotle's Metaphysics has many points of intellectual overlap with the works making up the Organon but is not traditionally considered part of it; additionally there are works on logic attributed, with varying degrees of plausibility, to Aristotle that were not known to the Peripatetics.

English-language translations of Ὄργανον include:

Entire translation works[edit]

Organon (Owen)
Unannotated Aristotelian texts:. Annotated texts and supplements:Incomplete

Taken separately[edit]


(Latin: Categoriae)
Introduces Aristotle's 10-fold classification of that which exists. These categories consist of substance, quantity, quality, relation, place, time, situation, condition, action, and passion

Categories (Owen) (trans. O. F. Owen) (1853)
Organon (Owen)/Categories/annotated (trans. O. F. Owen) (1853) Incomplete

On Interpretation[edit]

(Latin: De Interpretatione)
Introduces Aristotle's conceptions of proposition and judgement, and treats contrarieties between them. It contains Aristotle's principal contribution to philosophy of language. It also discusses the problem of the futures contingents.

On Interpretation (trans. O. F. Owen) (1853) (or De Interpretatione)

Prior Analytics[edit]

(Latin: Analytica Priora)
Introduces his syllogistic method, which is discussed in the article on term logic, argues for its correctness, and discusses inductive inference.

Prior Analytics (trans. O. F. Owen) (1853) (or Analytica Priora)
Prior Analytics (Grosseteste) paraphrase by Robert Grosseteste

Posterior Analytics[edit]

(Latin: Analytica Posteriora)
Discusses correct reasoning in general.

Posterior Analytics (Owen) (trans. O. F. Owen) (1853)
Posterior Analytics (Bouchier) (trans. E. S. Bouchier) (1901)
Posterior Analytics Commentary (Grosseteste) by Robert Grosseteste


(Latin: Topica)
Treats issues in constructing valid arguments, and inference that is probable, rather than certain. It is in this treatise that Aristotle mentions the idea of the Predicables, which was later developed by Porphyry and the scholastic logicians.

Topics (trans. O. F. Owen) (1853)

On Sophistical Refutations[edit]

(Latin: De Sophisticis Elenchis)
Gives a treatment of logical fallacies, and provides a key link to Aristotle's work on rhetoric.

The Sophistical Elenchi (trans. O. F. Owen) (1853)