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All open Erdős problems formalized

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Last updated Aug 14, 2026

Formalise the main statement from all unsolved problems of
https://www.erdosproblems.com/

These tracks the unsolved problems with the status "open", "verifiable" and "falsifiable" and "decidable".

Note that for some formalisations of open problems in the repo, we haven't opened issues at all, hence the progress percentage will be an underestimate. The true number of open problems to be formalised can be found at https://github.com/teorth/erdosproblems and is currently 693.

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