nyan_sandwich comments on Stuff That Makes Stuff Happen - Less Wrong

51 Post author: Eliezer_Yudkowsky 18 October 2012 10:49AM

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Comment author: [deleted] 27 October 2012 03:50:38AM 1 point [-]

Of course, it doesn't follow that we have to factor out logical uncertainty as a causal node that works like every other causal node

Is there some reason not to treat logical stuff as normal causal nodes? Does that cause us actual trouble, or is it just a bit confusing sometimes?

Comment author: Eliezer_Yudkowsky 27 October 2012 04:22:25AM 2 points [-]

In causal models, we can have A -> B, E -> A, E -> ~B. Logical uncertainty does not seem offhand to have the same structure as causal uncertainty.

Comment author: Eugine_Nier 27 October 2012 08:56:52PM *  2 points [-]

You seem to be confusing the causal arrow with the logical arrow. As endoself points out here proofs logically imply their theorems, but a theorem causes its proof.