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Paul Fischer's avatar

William isn't the Boolean "or" like this V and the "and" an upside-down V? Or perhaps you mean U from set theory?

William M Briggs's avatar

That's the problem. There's lots of ways to write it.

I tried to follow Jaynes's notation for those reading along.

Paul Fischer's avatar

HAHAHA.....to B or not to B. I heard that somewhere...hmm...wasn't it "is to B"?

Paul Fischer's avatar

So Jaynes died in 1998 but Probability Theory: The Logic of Science first edition was 2003. Did some psychic channel him?

Paul Fischer's avatar

Or P(A | C) + P( not A | C) = 1