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- In computer science, lambda calculi are said to have explicit substitutions if they pay special attention to the formalization of the process of substitution. This is in contrast to the standard lambda calculus where substitutions are performed by beta reductions in an implicit manner which is not expressed within the calculus; the "freshness" conditions in such implicit calculi are a notorious source of errors. The concept has appeared in a large number of published papers in quite different fields, such as in abstract machines, predicate logic, and symbolic computation. (en)
- Un calcul de substitutions explicites est une extension du lambda-calcul dans lequel la substitution est intégrée au calcul au même titre que le sont l'abstraction ou l'application, alors que dans le lambda-calcul, la substitution fait partie de la métathéorie, c'est-à-dire qu'elle est définie en dehors de la théorie du lambda-calcul. (fr)
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- 5460 (xsd:nonNegativeInteger)
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- In computer science, lambda calculi are said to have explicit substitutions if they pay special attention to the formalization of the process of substitution. This is in contrast to the standard lambda calculus where substitutions are performed by beta reductions in an implicit manner which is not expressed within the calculus; the "freshness" conditions in such implicit calculi are a notorious source of errors. The concept has appeared in a large number of published papers in quite different fields, such as in abstract machines, predicate logic, and symbolic computation. (en)
- Un calcul de substitutions explicites est une extension du lambda-calcul dans lequel la substitution est intégrée au calcul au même titre que le sont l'abstraction ou l'application, alors que dans le lambda-calcul, la substitution fait partie de la métathéorie, c'est-à-dire qu'elle est définie en dehors de la théorie du lambda-calcul. (fr)
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- Explicit substitution (en)
- Substitution explicite (fr)
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