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Nov 3, 2014 at 8:01 vote accept XL _At_Here_There
Nov 1, 2014 at 22:15 history edited Bjørn Kjos-Hanssen CC BY-SA 3.0
added 5 characters in body
Oct 31, 2014 at 1:09 review Reopen votes
Oct 31, 2014 at 8:43
Oct 31, 2014 at 0:50 history edited XL _At_Here_There CC BY-SA 3.0
deleted 2 characters in body
Oct 30, 2014 at 22:20 history closed Andrés E. Caicedo
Qiaochu Yuan
Stefan Kohl
Emil Jeřábek
John Pardon
Needs details or clarity
Oct 30, 2014 at 15:29 comment added Timothy Chow I did not interpret XL's definition differently from Minsky's definition. Note that Wikipedia correctly goes on to say that this is not the definition that is most commonly used today.
Oct 30, 2014 at 9:44 comment added Mirko According to your definition it sounds like different Turing machines could be picked for different $i$, and then every real would be "computable". The above link to wikipedia says: "A computable number [is] one for which there is a Turing machine which, given n on its initial tape, terminates with the n-th digit of that number [encoded on its tape]." So the same Turing machine should work for that $r$, and given $i$ that Turing machine would tell you the first $i$ digits.
Oct 30, 2014 at 8:23 answer added Bjørn Kjos-Hanssen timeline score: 3
Oct 30, 2014 at 7:02 review Close votes
Oct 30, 2014 at 22:20
Oct 30, 2014 at 6:57 comment added Victor en.wikipedia.org/wiki/Computable_number
Oct 30, 2014 at 6:20 history asked XL _At_Here_There CC BY-SA 3.0