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Explicit Henkin sentences
Published online by Cambridge University Press: 12 March 2014
Abstract
Hofstadter has introduced the notion of an explicit Henkin sentence. Roughly speaking, an explicit Henkin sentence not only asserts its own provability, as ordinary Henkin sentences do, but explicitly provides a detailed description of a proof. We provide, in this paper, a precise formalization of Hofstadter's notion and then show that true explicit Henkin sentences exist.
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- Copyright © Association for Symbolic Logic 1985
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