The Natural Number Game
An interactive introduction to the Lean theorem prover and "a part-book part-game which shows the power of induction".
An interactive introduction to the Lean theorem prover and "a part-book part-game which shows the power of induction".
Object, I don't know if it is hosted somewhere, but there's already a (not completed) Lean4 version: https://github.com/PatrickMassot/NNG4
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