falenas108 comments on Take heed, for it is a trap - Less Wrong

47 Post author: Zed 14 August 2011 10:23AM

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Comment author: Patrick 14 August 2011 11:50:33AM 4 points [-]

"Bayesian Bob: ... I meant that in a vacuum we should believe it with 50% certainty..."

As for proving a negative, I've got two words: Modus Tollens.

Bob does need to go back to math class! ;)

Comment author: falenas108 14 August 2011 12:54:02PM * 0 points [-]

As for proving a negative, I've got two words: Modus Tollens.

Modus Tollens is: If P, then Q. Not Q. Therefore, not P

But you can't prove not Q in the first place.

Comment author: Patrick 14 August 2011 12:59:02PM 1 point [-]

Three more words then, reductio ad absurdum.

Comment author: falenas108 14 August 2011 02:24:47PM -1 points [-]

Ok, fair.

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