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by jepler 3908 days ago
Purported proofs of P=NP are published multiple times a year. They just always turn out to have a flaw, just like the P≠NP proofs. http://www.win.tue.nl/~gwoegi/P-versus-NP.htm collects them, though it hasn't been updated since 2 May 2015, probably when the refutation of the most recent purported P=NP proof was added.