Most mathematicians would love for a machine to check their proofs. The problem, as Buzzard says, is that is much too expensive. Another way to put is, at the m

Most mathematicians would love for a machine to check their proofs. The problem, as Buzzard says, is that is much too expensive. Another way to put is, at the moment the math you can do with machine-checkable proofs is a bit boring, compared to math on the cutting edge outside formal methods.