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  2. Lambda calculus - Wikipedia

    en.wikipedia.org/wiki/Lambda_calculus

    Lambda calculus is Turing complete, that is, it is a universal model of computation that can be used to simulate any Turing machine. [3] Its namesake, the Greek letter lambda (λ), is used in lambda expressions and lambda terms to denote binding a variable in a function.

  3. Lambda calculus definition - Wikipedia

    en.wikipedia.org/wiki/Lambda_calculus_definition

    Alpha-conversion, sometimes known as alpha-renaming, [7] allows bound variable names to be changed. For example, alpha-conversion of . might yield .. Terms that differ only by alpha-conversion are called α-equivalent. Frequently in uses of lambda calculus, α-equivalent terms are considered to be equivalent.

  4. Greek letters used in mathematics, science, and engineering

    en.wikipedia.org/wiki/Greek_letters_used_in...

    the lambda baryon; a diagonal matrix of eigenvalues in linear algebra; a lattice; molar conductivity in electrochemistry; Iwasawa algebra; represents: one wavelength of electromagnetic radiation; the decay constant in radioactivity; function expressions in the lambda calculus; a general eigenvalue in linear algebra

  5. de Bruijn index - Wikipedia

    en.wikipedia.org/wiki/De_Bruijn_index

    In mathematical logic, the de Bruijn index is a tool invented by the Dutch mathematician Nicolaas Govert de Bruijn for representing terms of lambda calculus without naming the bound variables. [1] Terms written using these indices are invariant with respect to α-conversion , so the check for α-equivalence is the same as that for syntactic ...

  6. Beta normal form - Wikipedia

    en.wikipedia.org/wiki/Beta_normal_form

    In the lambda calculus, a beta redex is a term of the form: [3] [4] (.). A redex is in head position in a term , if has the following shape (note that application has higher priority than abstraction, and that the formula below is meant to be a lambda-abstraction, not an application):

  7. Let expression - Wikipedia

    en.wikipedia.org/wiki/Let_expression

    Toggle Rules for conversion between lambda calculus and let expressions subsection. 5.1 Conversion from lambda to let expressions. ... Alpha renaming may be applied ...

  8. Category:Lambda calculus - Wikipedia

    en.wikipedia.org/wiki/Category:Lambda_calculus

    Pages in category "Lambda calculus" ... Η-conversion This page was last edited on 25 April 2020, at 19:14 (UTC). Text is available under the Creative ...

  9. List of equations in nuclear and particle physics - Wikipedia

    en.wikipedia.org/wiki/List_of_equations_in...

    Quantity (common name/s) (Common) symbol/s Defining equation SI units Dimension Number of atoms N = Number of atoms remaining at time t. N 0 = Initial number of atoms at time t = 0