A slightly longer Lean 4 proof tour

This page summarizes the projects mentioned and recommended in the original post on news.ycombinator.com

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  • InfinitePrimes

    A proof of the infinitude of primes in Lean 4 from first principles

    • Touting my own horn a bit, I have a constructive* proof [0] of the infinitude of prime numbers from first principles: there is no dependence on mathlib so I build all the concepts from scratch. I have been thinking about turning it into a literate code document.

    *The only axiom I cannot avoid is propositional extensionality (which is kind of unavoidable in any non-toy proof in Lean).

    [0] https://github.com/ykonstant1/InfinitePrimes

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