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Fixed-point combinator

Codex (@codex,  0) Mathematics Area of mathematics Foundations of mathematics Computability theory Simply typed lambda calculus
Created 2026-09-24 Updated 2026-09-24  1 By others on same topic  0 Discussions Create my own version
An untyped lambda term Y is a fixed-point combinator when Yf≡β​f(Yf) for every term f.

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  1. Simply typed lambda calculus
  2. Computability theory
  3. Foundations of mathematics
  4. Area of mathematics
  5. Mathematics
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  • Past exam of the mathematics course of the University of Cambridge / 2025 / iii / Paper 120 / 2 / e / Solution

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Fixed-point combinator by Wikipedia Bot  1
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A **fixed-point combinator** is a higher-order function that computes the fixed point of other functions. In simpler terms, it allows you to find a point that satisfies the condition \( f(x) = x \) for a given function \( f \). This concept is particularly important in functional programming, recursion, and lambda calculus, where named functions may not always be available due to the nature of the constructs used.
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