Every so often, as faculty in my department, I get unsolicited submissions from crackpots. Just tonight I got a real doozy, from a guy who’s sent me stuff before. I’m going to just post screen capture of the email because I don’t want to even try to replicate this formatting.
John Baez has a Crackpot Index for physics, but I don’t know of a good checklist for mathematics. I’ll just leave this to my intrepid readers to find the flaws.