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- Correctness_(computer_science) abstract "In theoretical computer science, correctness of an algorithm is asserted when it is said that the algorithm is correct with respect to a specification. Functional correctness refers to the input-output behaviour of the algorithm (i.e., for each input it produces the correct output)[citation needed].A distinction is made between total correctness, which additionally requires that the algorithm terminates, and partial correctness, which simply requires that if an answer is returned it will be correct. Since there is no general solution to the halting problem, a total correctness assertion may lie much deeper. A termination proof is a type of mathematical proof that plays a critical role in formal verification because total correctness of an algorithm depends on termination[citation needed].For example, successively searching through integers 1, 2, 3, … to see if we can find an example of some phenomenon — say an odd perfect number — it is quite easy to write a partially correct program (using long division by two to check n as perfect or not). But to say this program is totally correct would be to assert something currently not known in number theory.A proof would have to be a mathematical proof, assuming both the algorithm and specification are given formally. In particular it is not expected to be a correctness assertion for a given program implementing the algorithm on a given machine. That would involve such considerations as limitations on computer memory.A deep result in proof theory, the Curry-Howard correspondence, states that a proof of functional correctness in constructive logic corresponds to a certain program in the lambda calculus. Converting a proof in this way is called program extraction.Hoare logic is a specific formal system for reasoning rigorously about the correctness of computer programs.".
- Correctness_(computer_science) wikiPageID "357339".
- Correctness_(computer_science) wikiPageRevisionID "577348683".
- Correctness_(computer_science) hasPhotoCollection Correctness_(computer_science).
- Correctness_(computer_science) subject Category:Formal_methods_terminology.
- Correctness_(computer_science) subject Category:Theoretical_computer_science.
- Correctness_(computer_science) comment "In theoretical computer science, correctness of an algorithm is asserted when it is said that the algorithm is correct with respect to a specification.".
- Correctness_(computer_science) label "Correctitud".
- Correctness_(computer_science) label "Correctness (computer science)".
- Correctness_(computer_science) label "Corretude (lógica)".
- Correctness_(computer_science) label "Korrektheit (Informatik)".
- Correctness_(computer_science) label "正当性 (計算機科学)".
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- Correctness_(computer_science) sameAs Correctitud.
- Correctness_(computer_science) sameAs 正当性_(計算機科学).
- Correctness_(computer_science) sameAs Corretude_(lógica).
- Correctness_(computer_science) sameAs m.01_0xk.
- Correctness_(computer_science) sameAs Q360812.
- Correctness_(computer_science) sameAs Q360812.
- Correctness_(computer_science) wasDerivedFrom Correctness_(computer_science)?oldid=577348683.
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