snarles comments on No one knows what Peano arithmetic doesn't know - Less Wrong

17 Post author: cousin_it 16 December 2011 09:36PM

You are viewing a comment permalink. View the original post to see all comments and the full post content.

Comments (52)

You are viewing a single comment's thread.

Comment author: snarles 18 December 2011 12:44:34PM 0 points [-]

So is PA the weakest system capable of encapsulating Turing logic?

Comment author: Will_Sawin 18 December 2011 05:02:46PM 3 points [-]

No. You don't need induction to do so. You can just use arithmetic to slowly, slowly evaluate the TM until you find something that halts or don't. The oracle holds all the power.