20 February 2009, Colloquium on Mathematical Logic, Martin Davis

Abstract: In Gödel's (unsent) reply to the questionaire sent to him by B.D. Grandjean he asserted that since 1925 he had held a position of 'mathematical realism' whereby 'mathematical concepts [and sets] and theorems are describing objects of some kind.' (The words in square brackets were added by Gödel.) A more nuanced story emerges from the hints made available with the publication of the magnificent five volume set of Gödel's Collected Works.

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