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8dcc's blog

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I use this blog to post information in a more centralized way, rather than writing articles across my different projects.

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Understanding the Y Combinator

2024123 points70 commentsSoftware Engineering details

This article is about the Y combinator, a fixed-point combinator that provides a way of using recursion in scenarios and programming languages where symbols are not available. The concept of the Y combinator itself is closely related to lambda calculus (λ-calculus) and functional programming languages. More…