• known as proofs of impossibility, negative proofs, or negative results. Impossibility theorems often resolve decades or centuries of work spent looking...
    29 KB (3,909 words) - 08:17, 2 August 2024
  • Impossibility theorem could refer to: Proof of impossibility, a negative proof of a theory Arrow's impossibility theorem in welfare economics This disambiguation...
    169 bytes (52 words) - 11:44, 27 April 2024
  • is the concept of proof of impossibility referring to problems impossible to solve. The difference between this impossibility and that of the no-go theorems...
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  • A proof of impossibility or an evidence of absence argument are typical methods to fulfill the burden of proof for a negative claim. Burden of proof is...
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  • Evidence of absence in general, such as evidence that there is no milk in a certain bowl Modus tollens, a logical proof Proof of impossibility, mathematics...
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  • its original proof Mathematical induction and a proof Proof that 0.999... equals 1 Proof that 22/7 exceeds π Proof that e is irrational Proof that π is irrational...
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  • Thumbnail for Doubling the cube
    "The Algebra of Geometric Impossibility: Descartes and Montucla on the Impossibility of the Duplication of the Cube and the Trisection of the Angle". Centaurus...
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  • Look up impossibility in Wiktionary, the free dictionary. Impossibility may refer to: Epistemic impossibility, in modal logic a statement that cannot...
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  • Thumbnail for Five-room puzzle
    drawing. The method of proof is proof by contradiction. That is, we proceed as if a solution exists and discover some properties of all solutions. These...
    7 KB (1,002 words) - 04:48, 22 January 2024
  • Thumbnail for Angle trisection
    proof of the impossibility of classically trisecting an arbitrary angle in 1837. Wantzel's proof, restated in modern terminology, uses the concept of...
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  • Thumbnail for Arrow's impossibility theorem
    Arrow's impossibility theorem is a key result in social choice theory, showing that no ranking-based decision rule can satisfy the requirements of rational...
    65 KB (5,857 words) - 17:03, 23 November 2024
  • Thumbnail for Three cups problem
    changes W {\displaystyle W} by the sum of two odd numbers, which is even, completing the proof. Another way of looking is that, at the start, 2 cups are...
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  • Thumbnail for Mathematical proof
    every proof can, in principle, be constructed using only certain basic or original assumptions known as axioms, along with the accepted rules of inference...
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  • Proof theory is a major branch of mathematical logic and theoretical computer science within which proofs are treated as formal mathematical objects,...
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  • element of the universe (or sometimes, by convention, a restricted subset such as propositions) to form an infinite set of inference rules. A proof system...
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  • In logic, proof by contradiction is a form of proof that establishes the truth or the validity of a proposition by showing that assuming the proposition...
    19 KB (2,501 words) - 17:52, 4 November 2024
  • Thumbnail for Mathematical induction
    next one (the step). — Concrete Mathematics, page 3 margins. A proof by induction consists of two cases. The first, the base case, proves the statement for...
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  • Thumbnail for Fermat's Last Theorem
    proof was released five years after the episode originally aired. Mathematics portal Euler's sum of powers conjecture Proof of impossibility Sums of powers...
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  • In mathematics, a proof by infinite descent, also known as Fermat's method of descent, is a particular kind of proof by contradiction used to show that...
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  • of positive or negative content in the claim. A negative claim may or may not exist as a counterpoint to a previous claim. A proof of impossibility or...
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  • diagonalization proof technique can also be used to show that several other sets are uncountable, such as the set of all infinite sequences of natural numbers...
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  • a formal proof or derivation is a finite sequence of sentences (known as well-formed formulas when relating to formal language), each of which is an...
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  • principle that for every system the correctness of a property follows from the impossibility of the impossibility of this property" (Brouwer, ibid, p. 335). This...
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  • Thumbnail for Range of a function
    mathematics, the range of a function may refer to either of two closely related concepts: the codomain of the function, or the image of the function. In some...
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  • mathematical proof was a major motivating factor for the development of computer science. While the roots of formalized logic go back to Aristotle, the end of the...
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  • Thumbnail for Infinite set
    Formal Knowledge in the Formation of the Proof Image: A Case Study in the Context of Infinite Sets". Turkish Journal of Computer and Mathematics Education...
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  • sound, and complete proof calculus. The model-theoretic properties of HOL with standard semantics are also more complex than those of first-order logic...
    9 KB (1,061 words) - 10:50, 5 December 2023
  • Proof by exhaustion, also known as proof by cases, proof by case analysis, complete induction or the brute force method, is a method of mathematical proof...
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  • Thumbnail for Recursion
    Recursion (category Pages displaying short descriptions of redirect targets via Module:Annotated link)
    mathematical function Mathematical induction – Form of mathematical proof Mise en abyme – Technique of placing a copy of an image within itself, or a story within...
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  • is to help prove a more substantial theorem – a step in the direction of proof. Some powerful results in mathematics are known as lemmas, first named...
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