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by Alex Appel 1123 days ago | link | parent

Quick question: It is possible to drive the probability of x down arbitrarily far by finding a bunch of proofs of the form “x implies y” where y is a theorem. But the exact same argument applies to not x.

If the theorem-prover always finds a proof of the form “not x implies y” immediately afterwards, the probability wouldn’t converge, but it would fluctuate within a certain range, which looks good enough.

What, if any, conditions need to be imposed on the theorem prover to confine the probabilities assigned to an unprovable statement to a range that is narrower than (0, 1)?



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