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proof theory

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Also known as proof systems

branch of mathematical logic

Wikidata facts

Instance of
academic major
Show 5 more facts
topic's main category
Category:Proof theory
ACM Classification Code (2012)
10003792
is the study of
mathematical proof
maintained by WikiProject
WikiProject Mathematics
Sources (3)

via Wikidata · CC0

~20 min read

Encyclopedic overview

Proof theory is a major branch of mathematical logic and theoretical computer science within which proofs are treated as formal mathematical objects, facilitating their analysis by mathematical techniques. Proofs are typically presented as inductively defined data structures such as lists, boxed lists, or trees, which are constructed according to the axioms and rules of inference of a given logical system. Consequently, proof theory is syntactic in nature, in contrast to model theory, which is semantic in nature.

Some of the major areas of proof theory include structural proof theory, ordinal analysis, provability logic, proof-theoretic semantics, reverse mathematics, proof mining, automated theorem proving, and proof complexity. Much research also focuses on applications in computer science, linguistics, and philosophy.

Excerpted from Wikipedia’s “proof theory” article, available under the CC BY-SA 4.0 licence.