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Descriptive Complexity in Lean: Completeness by First-Order Reductions

Senellart, Pierre et al.
arXiv (All) · Papers
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computational-complexityf-4-1i-2-3logic-in-computer-science
We show that descriptive complexity can serve as a foundation for formalizing computational complexity results in a proof assistant, by constructing a Lean library centered around the following concepts: decision problems are isomorphism-invariant predicates on finite structures; complexity classes
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