An angel carrying the banner of "Truth", Roslin, Midlothian
Walter Seymour Allward's Veritas (Truth) outside Supreme Court of Canada, Ottawa, Ontario Canada
'"What is Truth?" by Nikolai Ge, depicting John 18:38 in which Pilate asks Christ "What is truth?"

In philosophy and logic, a deflationary theory of truth (also semantic deflationism or simply deflationism) is one of a family of theories that all have in common the claim that assertions of predicate truth of a statement do not attribute a property called "truth" to such a statement.

- Deflationary theory of truth

More recently developed "deflationary" or "minimalist" theories of truth have emerged as possible alternatives to the most prevalent substantive theories.

- Truth
An angel carrying the banner of "Truth", Roslin, Midlothian

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Semantic theory of truth

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A semantic theory of truth is a theory of truth in the philosophy of language which holds that truth is a property of sentences.

The semantic conception of truth, which is related in different ways to both the correspondence and deflationary conceptions, is due to work by Polish logician Alfred Tarski.

Alfred Tarski

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Polish-American logician and mathematician.

Polish-American logician and mathematician.

Warsaw University Library – at entrance (seen from rear) are pillared statues of Lwów-Warsaw School philosophers (right to left) Kazimierz Twardowski, Jan Łukasiewicz, Alfred Tarski, Stanisław Leśniewski.
Alfred Tarski at Berkeley

His biographers Anita Burdman Feferman and Solomon Feferman state that, "Along with his contemporary, Kurt Gödel, he changed the face of logic in the twentieth century, especially through his work on the concept of truth and the theory of models."

as expressing merely a deflationary theory of truth or as embodying truth as a more substantial property (see Kirkham 1992).

Paul Horwich

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Paul Gordon Horwich (born 1947) is a British analytic philosopher at New York University, noted for his contributions to philosophy of science, philosophy of physics, the philosophy of language (especially truth and meaning) and the interpretation of Wittgenstein's later philosophy.

In Truth (1990), Horwich presented a detailed defence of the minimalist variant of the deflationary theory of truth.