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About: Explicit substitution     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:WikicatRewritingSystems, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: yago:Artifact100021939yago:Instrumentality103575240yago:Object100002684yago:PhysicalEntity100001930yago:System104377057yago:Whole100003553yago:WikicatRewritingSystems New Facet based on Instances of this Class

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.