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Что (кто) такое proof by contradiction - определение
Найдено результатов: 12268
Proof by contradiction
FORM OF INDIRECT PROOF THAT ESTABLISHES THE TRUTH OR VALIDITY OF A PROPOSITION
Indirect proof; Prove by contradiction; Proof by Contradiction; Proofs by contradiction; Refutation by contradiction
In logic and mathematics, proof by contradiction is a form of proof that establishes the truth or the validity of a proposition, by showing that assuming the proposition to be false leads to a contradiction. Proof by contradiction is also known as indirect proof, proof by assuming the opposite, and reductio ad impossibile.
Proof by intimidation
METHOD OF CONVINCING SOMEONE BY USING JARGON OR CLAIMING IT AS CLEAR
Proof by verbosity; Argumentum verbosium; Proof by Intimidation; Argument by verbosity; Left as an exercise for the reader; The proof is left to the reader
Proof by intimidation (or argumentum verbosum) is a jocular phrase used mainly in mathematics to refer to a specific form of hand-waving, whereby one attempts to advance an argument by marking it as obvious or trivial, or by giving an argument loaded with jargon and obscure results. It attempts to intimidate the audience into simply accepting the result without evidence, by appealing to their ignorance and lack of understanding.
Mathematical proof
![Visual proof for the (3,4,5) triangle as in the [[Zhoubi Suanjing]] 500–200 BCE.](https://commons.wikimedia.org/wiki/Special:FilePath/Chinese pythagoras.jpg?width=200 "Visual proof for the (3,4,5) triangle as in the [[Zhoubi Suanjing]] 500–200 BCE.")
RIGOROUS DEMONSTRATION THAT A MATHEMATICAL STATEMENT FOLLOWS FROM ITS PREMISES
TheoremProving; Proof (mathematics); Proof (math); Mathematical Proof; Proving (math); Maths proofs; Mathematical proofs; Proof techniques; Proof Techniques; Demonstration (proof); Derivation (mathematical logic); Methods of proof; Proof method; Skipped step; Essential step; Theorem-proving; Two-column proof; Mathing; Types of proof; Math proof; History of mathematical proof; Mathematical derivation; Geometric proof; Geometrical proof
A mathematical proof is an inferential argument for a mathematical statement, showing that the stated assumptions logically guarantee the conclusion. The argument may use other previously established statements, such as theorems; but every proof can, in principle, be constructed using only certain basic or original assumptions known as axioms, along with the accepted rules of inference.
Mathing
RIGOROUS DEMONSTRATION THAT A MATHEMATICAL STATEMENT FOLLOWS FROM ITS PREMISES
TheoremProving; Proof (mathematics); Proof (math); Mathematical Proof; Proving (math); Maths proofs; Mathematical proofs; Proof techniques; Proof Techniques; Demonstration (proof); Derivation (mathematical logic); Methods of proof; Proof method; Skipped step; Essential step; Theorem-proving; Two-column proof; Mathing; Types of proof; Math proof; History of mathematical proof; Mathematical derivation; Geometric proof; Geometrical proof
The act of doing Math...If one who is using paint is painting, then one who is using numbers and equations should be described as mathing.
The calculus students were in the lounge mathing before class.
The calculus students were in the lounge mathing before class.
Proof coinage
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![A 1969 [[United States Mint]] Proof set of 5 coins including 40% silver [[Kennedy half dollar]]](https://commons.wikimedia.org/wiki/Special:FilePath/A 1969 United States Mint Proof Set.jpg?width=200 "A 1969 [[United States Mint]] Proof set of 5 coins including 40% silver [[Kennedy half dollar]]")
![Libertad]] coin of Mexico](https://commons.wikimedia.org/wiki/Special:FilePath/Reverse of the 2010 1⁄10 Onza (ounce) silver proof Libertad coin of Mexico, photographed by Yogabrata Chakraborty.jpg?width=200 "Libertad]] coin of Mexico")
SPECIAL EARLY SAMPLES OF A COIN ISSUE
Proof coin; Proof (coin); Proof set; Proof penny; Proof coins; Proof pieces
Proof coinage refers to special early samples of a coin issue, historically made for checking the dies (as in demonstrating that something is true) and for archival purposes. Nowadays proofs are often struck in greater numbers specially for coin collectors (numismatists).
Proof of space
MEANS OF SHOWING LEGITIMATE INTEREST IN A SERVICE BY ALLOCATING A MEMORY
Proof of Space; Draft:Proof of Space; Proof-of-capacity; Proof-of-Space; Proof-of-space; Proof of storage; Burstcoin; Proof of space-time; Proof of Space and Time
Proof of space (PoS) is a type of consensus algorithm achieved by demonstrating one's legitimate interest in a service (such as sending an email) by allocating a non-trivial amount of memory or disk space to solve a challenge presented by the service provider. The concept was formulated in 2013 by Dziembowski et al.
Proof without words
MATHEMATICAL PROOF EXPRESSED VISUALLY
Visual proof; Proofs without words; Graphical proof
In mathematics, a proof without words (or visual proof) is a proof of an identity or mathematical statement which can be demonstrated as self-evident by a diagram without any accompanying explanatory text. Such proofs can be considered more elegant than formal or mathematically rigorous proofs due to their self-evident nature.
Formal proof
ESTABLISHMENT OF A THEOREM USING INFERENCE FROM THE AXIOMS
Derivation (logic); Formal derivation; Proof (logic); Symbolic proof
In logic and mathematics, a formal proof or derivation is a finite sequence of sentences (called well-formed formulas in the case of a formal language), each of which is an axiom, an assumption, or follows from the preceding sentences in the sequence by a rule of inference. It differs from a natural language argument in that it is rigorous, unambiguous and mechanically verifiable.
Proof of work
A SYSTEM THAT REGULATES THE FORMATION OF BLOCKS ON A BLOCKCHAIN
Proof of work system; Proof-of-work; Proof-of work; Proof of-work; Proof of-work system; Proof-of work system; Proof-of-Work; Nakamoto consensus; Proof-of-work system; Reusable proof-of-work; List of proof-of-work functions
Proof of work (PoW) is a form of cryptographic proof in which one party (the prover) proves to others (the verifiers) that a certain amount of a specific computational effort has been expended. Verifiers can subsequently confirm this expenditure with minimal effort on their part.
Proof of concept
REALIZATION OF A CERTAIN METHOD OR IDEA IN ORDER TO DEMONSTRATE ITS FEASIBILITY
Proof-of-concept; Proof of Concept; Proofs of concept; Proof of Principle; Proof of principle
Proof of concept (POC or PoC), also known as proof of principle, is a realization of a certain method or idea in order to demonstrate its feasibility, or a demonstration in principle with the aim of verifying that some concept or theory has practical potential. A proof of concept is usually small and may or may not be complete.
