reduction rule

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(ri′dək·shən ′rül)

(computer science) The principal computation rule in the lambda calculus; it states that an operator-operand combination of the form (λxMA) may be transformed into the expression SxAM, obtained by substituting the lambda expression A for all instances of x in M, provided there are no conflicts of variable names. Also known as beta rule.


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reduction sequence (mathematics)
aesthetics (philosophy)
Orthogonality (term rewriting)