A report on Truth and Alfred Tarski

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

- Alfred Tarski

Among the philosophers who grappled with this problem is Alfred Tarski, whose semantic theory is summarized further on.

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

3 related topics with Alpha


Deflationary theory of truth

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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.

Some years before Strawson developed his account of the sentences which include the truth-predicate as performative utterances, Alfred Tarski had developed his so-called semantic theory of truth.

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.

Popper in the 1980s

Karl Popper

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Austrian-British philosopher, academic and social commentator.

Austrian-British philosopher, academic and social commentator.

Popper in the 1980s
Popper bust in the Arkadenhof of the University of Vienna
Popper's gravesite in in Vienna, Austria
Popper with Professor Cyril Höschl, while receiving an honorary doctorate from Charles University in Prague in May 1994.
Popper in 1990
English Heritage blue plaque at Burlington Rise, Oakleigh Park, London

Then came the semantic theory of truth formulated by the logician Alfred Tarski and published in 1933.

The theory met critical objections to truth as correspondence and thereby rehabilitated it.