Summa Logicae

Name: Summa Logicae
Author: William of Ockham

by William of Ockham

Medieval logic treatise exploring propositions, terms, and semantic meaning

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About the author

William of Ockham

English Franciscan philosopher whose principle of parsimony—Ockham's Razor—remains the most quoted methodological rule in science and philosophy. His nominalism denied the existence of universals, shaping the empiricist tradition. He was excommunicated for opposing papal authority.

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