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Formally Verifying Peephole Optimisations in Lean

l-mdev Tuesday, December 23, 2025
Summary
The article explores the use of the Lean theorem prover to formally verify peephole optimizations in a compiler. It discusses the process of expressing the compiler's semantics in Lean and proving the correctness of specific optimization rules, demonstrating the potential of formal verification to improve the reliability of compiler implementations.
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