# lambda calculus

> English word · Noun

## Definitions
1. Any of a family of functionally complete algebraic systems in which lambda expressions are evaluated according to a fixed set of rules to produce values, which may themselves be lambda expressions.

## Etymology
Coined by Alonzo Church after the use of the Greek letter lambda (λ) as the basic abstraction operator in the calculus.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/lambda-calculus