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by kaba0 974 days ago
I am absolutely not an expert at either of them, but I believe TLA+ is interested mostly about all the possible ordering of “code”, that models your program, verifying the absence of concurrency bugs.

Do correct me if I’m wrong, but Lean is more about total functions/FP code, not sure how well does it handle threading, if at all. It might be more related to the correctness of the actual implementation of a serial algorithm.