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From Foundations to Science: Justifying and Unwinding Proofs
Zbornik radova, Tome 2 (1977) no. 10, p. 63
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The first part of this paper recapitulates the general scheme of using techniques developed for discredited foundational aims; specifically, proof theoretic techniques developed for carrying out HiIbert's programme. Since this programme relies on formalization, that is, mechanization, an obvious use is in the mechanical 'handling' of proofs. - The second part of the paper considers three different kinds of 'handling:' finding, checking and unwinding (transforming) proofs. The principal, generally neglected conclusion is that mechanical unwinding presents the most promising application of proof theoretic techniques; particularly where the passage from the informal proof considered to a formalization of its relevant features is not particularly problematic. Examples of such cases are proposed. 
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     author = {Georg Kreisel},
     title = {From {Foundations} to {Science:} {Justifying} and {Unwinding} {Proofs}},
     journal = {Zbornik radova},
     pages = {63 },
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     volume = {2},
     number = {10},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZR_1977_2_10_a4/}
}
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Georg Kreisel. From Foundations to Science: Justifying and Unwinding Proofs. Zbornik radova, Tome 2 (1977) no. 10, p. 63 . http://geodesic.mathdoc.fr/item/ZR_1977_2_10_a4/