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Bergschafbanach_tarski

METADATA

  • Apache 2.0
  • 2 months ago
    Last updated on May 28, 2025 at 10:17:34PM
  • 10 stars

LEAN

  • Commit e5ffc27 fails to build on leanprover/lean4:v4.10.0-rc2
    v4.10.0-rc2
  • 21 more

HOMEPAGE

bergschaf.github.io/banach-tarski/

REPOSITORY

Bergschaf/banach-tarski

This is the old version! The new formalisation lives at: https://github.com/Bergschaf/lean-banach-tarski

Banach Tarski

The Banach-Tarski theorem states the following: Given a sphere in 3D space, you are able to obtain an identical copy of the sphere by decomposing it into a finite number of subsets, rotating them and putting them back together. This repo contains the project to formalise the Banach-Tarksi theorem in Lean4.

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