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Coq is a formal proof management system, also called an interactive theorem prover. It is used to express mathematical assertions, mechanically check proofs of these assertions, find formal proofs, and extract certified programs.

8 votes

formalisation of Bourbaki, General Topology

Someone just drew my attention to this old question, but maybe the answer is still relevant. As mentioned by Reid, Lean mathlib has a lot of Bourbaki general topology. I don't think anyone checked lem …
Patrick Massot's user avatar