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Books > Humanities > Philosophy > Topics in philosophy > Logic
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Dag Prawitz on Proofs and Meaning (Hardcover, 2015 ed.)
Loot Price: R3,885
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Dag Prawitz on Proofs and Meaning (Hardcover, 2015 ed.)
Series: Outstanding Contributions to Logic, 7
Expected to ship within 12 - 19 working days
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This volume is dedicated to Prof. Dag Prawitz and his outstanding
contributions to philosophical and mathematical logic. Prawitz's
eminent contributions to structural proof theory, or general proof
theory, as he calls it, and inference-based meaning theories have
been extremely influential in the development of modern proof
theory and anti-realistic semantics. In particular, Prawitz is the
main author on natural deduction in addition to Gerhard Gentzen,
who defined natural deduction in his PhD thesis published in 1934.
The book opens with an introductory paper that surveys Prawitz's
numerous contributions to proof theory and proof-theoretic
semantics and puts his work into a somewhat broader perspective,
both historically and systematically. Chapters include either
in-depth studies of certain aspects of Dag Prawitz's work or
address open research problems that are concerned with core issues
in structural proof theory and range from philosophical essays to
papers of a mathematical nature. Investigations into the necessity
of thought and the theory of grounds and computational
justifications as well as an examination of Prawitz's conception of
the validity of inferences in the light of three "dogmas of
proof-theoretic semantics" are included. More formal papers deal
with the constructive behaviour of fragments of classical logic and
fragments of the modal logic S4 among other topics. In addition,
there are chapters about inversion principles, normalization of p
roofs, and the notion of proof-theoretic harmony and other areas of
a more mathematical persuasion. Dag Prawitz also writes a chapter
in which he explains his current views on the epistemic dimension
of proofs and addresses the question why some inferences succeed in
conferring evidence on their conclusions when applied to premises
for which one already possesses evidence.
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