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Proof theory - Wikipedia
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, … See more
Although the formalisation of logic was much advanced by the work of such figures as Gottlob Frege, Giuseppe Peano, Bertrand Russell, and Richard Dedekind, the story of modern … See more
Ordinal analysis is a powerful technique for providing combinatorial consistency proofs for subsystems of arithmetic, analysis, and set theory. Gödel's second incompleteness … See more
Reverse mathematics is a program in mathematical logic that seeks to determine which axioms are required to prove theorems of mathematics. The field was founded by See more
The informal proofs of everyday mathematical practice are unlike the formal proofs of proof theory. They are rather like high-level sketches that would allow an expert to … See more
Structural proof theory is the subdiscipline of proof theory that studies the specifics of proof calculi. The three most well-known styles of proof calculi are:
• The Hilbert calculi
• The natural deduction calculi See moreProvability logic is a modal logic, in which the box operator is interpreted as 'it is provable that'. The point is to capture the notion of a proof predicate of a reasonably rich formal theory. As basic axioms of the provability logic GL (Gödel-Löb), which captures provable in See more
Functional interpretations are interpretations of non-constructive theories in functional ones. Functional interpretations usually proceed in two stages. First, one "reduces" a classical theory C to an intuitionistic one I. That is, one provides a … See more
Wikipedia text under CC-BY-SA license Structural proof theory - Wikipedia
In mathematical logic, structural proof theory is the subdiscipline of proof theory that studies proof calculi that support a notion of analytic proof, a kind of proof whose semantic properties are exposed. When all the theorems of a logic formalised in a structural proof theory have analytic proofs, then the proof theory can be used to demonstrate such things as consistency, provide decision procedures, and allow mathematical or computational witnesses to be extracted as co…
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Category:Proof theory - Wikipedia
In mathematics, Proof theory is the study of formalized arguments. This category has the following 6 subcategories, out of 6 total. The following 95 pages are in this category, out of 95 total. This …
Proof Theory - Stanford Encyclopedia of Philosophy
Aug 13, 2018 · Proof theory is not an esoteric technical subject that was invented to support a formalist doctrine in the philosophy of mathematics; rather, it has been developed as an …
The Development of Proof Theory - Stanford Encyclopedia of …
Proof theory can be described as the study of the general structure of mathematical proofs, and of arguments with demonstrative force as encountered in logic.
Definition:Proof Theory - ProofWiki
The mathematical branch known as proof theory was initiated by David Hilbert in his attempt to prove the consistency of mathematics. His approach was later developed by Gerhard Karl …
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Notes to Proof Theory - Stanford Encyclopedia of Philosophy
In the 1970s Martin-Löf gave a normalization proof for a type theory with a universe that contained itself. The metatheory for this proof was basically a slight extension of the same type theory. …
Proof (truth) - Wikipedia
A proof is sufficient evidence or a sufficient argument for the truth of a proposition. [ 1 ] [ 2 ] [ 3 ] [ 4 ] The concept applies in a variety of disciplines, [ 5 ] with both the nature of the evidence or …
Proof Theory: History and Philosophical Significance
This generalization of Hilbert's original programme has fueled modern proof theory which is a rich part of mathematical logic with many significant implications for the philosophy of mathematics.
Proof Theory - Socratica
Proof theory is a branch of mathematical logic and philosophy that focuses on the nature of mathematical proofs as formal objects. Originating in the early 20th century with the work of …
Proof theory - Wikiwand
Proof theory is a major branch [1] of mathematical logic and theoretical computer science within which proofs are treated as formal mathematical objects, facilitating their analysis by …
Proof Theory - Stanford Encyclopedia of Philosophy
Defining the formal notion theorem in the same way from proof, we can easily prove: If THEOREM (\(\varphi\)) then \(T\vdash \textit{theorem}({\Corner{\varphi}})\). (As we will see, the …
Proof assistant - Wikipedia
An interactive proof session in CoqIDE, showing the proof script on the left and the proof state on the right. In computer science and mathematical logic, a proof assistant or interactive theorem …
The Proof Theory and Semantics of Intuitionistic Modal Logic
The standard theory arises from interpreting the semantic definitions in the ordinary meta-theory of informal classical mathematics. If, however, the same semantic definitions are interpreted in …
Proof Theory - Socratica
Proof theory is a branch of mathematical logic that focuses on the nature of mathematical proofs. This field seeks to formalize the processes by which mathematical statements are proven and …
To many people an algebraic proof seems more attractive than an element proof, but often an element proof is actually simpler. For instance, in Example 6.3.3 above, you could see …
Rice's theorem - Wikipedia
Rice's theorem puts a theoretical bound on which types of static analysis can be performed automatically. One can distinguish between the syntax of a program, and its semantics.The …
Gödel's Incompleteness Theorems - Stanford Encyclopedia of …
Already much earlier, around 1935, Gerhard Gentzen (see the entry on the development of proof theory) had provided such a statement. It is very natural to generalize the idea of induction …
Staying Faithful to the Standards of Proof - Cornell Law Review
Sep 15, 2019 · Academics have never quite understood the standards of proof or, indeed, much about the theory of proof. Their formulations beget probabilistic musings, which beget all sorts …
Category talk:Proof theory - Wikipedia
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The Continuum Hypothesis - Stanford Encyclopedia of Philosophy
Suppose T is a countable theory in the language of set theory, φ is a sentence, and B is a complete Boolean algebra. Then T ⊢ Ω φ iff V B ⊧ ‘T ⊢ Ω φ’. Thus, we have a semantic …
Revealed preference - Wikipedia
Revealed preference theory, pioneered by economist Paul Anthony Samuelson in 1938, [1] [2] is a method of analyzing choices made by individuals, mostly used for comparing the influence of …
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