198
submitted 1 day ago* (last edited 1 day ago) by Melatonin@lemmy.dbzer0.com to c/asklemmy@lemmy.ml

How about ANY FINITE SEQUENCE AT ALL?

you are viewing a single comment's thread
view the rest of the comments
[-] ped_xing@hexbear.net 21 points 1 day ago

0.101001000100001000001 . . .

speech-r I'm infinite and non-repeating. Can you find a 2 in me?

[-] flashgnash@lemm.ee 5 points 1 day ago

You can't prove that there isn't one somewhere

[-] Danitos@reddthat.com 10 points 1 day ago

You can, it's literally the way the number is defined.

[-] mukt@lemmy.ml 3 points 22 hours ago
[-] cosecantphi@hexbear.net 7 points 19 hours ago* (last edited 19 hours ago)

It's implicitly defined here by its decimal form:

0.101001000100001000001 . . .

The definition of this number is that the number of 0s after each 1 is given by the total previous number of 1s in the sequence. That's why it can't contain 2 despite being infinite and non-repeating.

[-] mukt@lemmy.ml 1 points 2 hours ago

0.101001000100001000001 . . .

Might very well be :

0.101001000100001000001202002000200002000002 ...

Real life, is different from gamified questions asked in student exams.

[-] xigoi@lemmy.sdf.org 4 points 1 day ago
[-] flashgnash@lemm.ee 2 points 20 hours ago

Because you'd need to search through an infinite number of digits (unless you have access to the original formula)

[-] BrainInABox@lemmy.ml 3 points 23 hours ago

Are you trying to say the answer to their question is no? Because if so, you're wrong, and if not I'm not sure what you're trying to say.

[-] ped_xing@hexbear.net 6 points 20 hours ago

The conclusion does not follow from the premises, as evidenced by my counterexample. It could be the case that every finite string of digits appears in the decimal expansion of pi, but if that's the case, a proof would have to involve more properties than an infinite non-repeating decimal expansion. I would like to see your proof that every finite string of digits appears in the decimal expansion of pi.

[-] BrainInABox@lemmy.ml -3 points 20 hours ago

Well that's just being pointlessly pedantic, obviously they fucking know that a repeating number of all zeros and ones doesn't have a two in it. This is pure reddit pedantry you're doing

[-] ExFed@lemm.ee 5 points 19 hours ago
this post was submitted on 26 Dec 2024
198 points (98.5% liked)

Asklemmy

44173 readers
1926 users here now

A loosely moderated place to ask open-ended questions

Search asklemmy 🔍

If your post meets the following criteria, it's welcome here!

  1. Open-ended question
  2. Not offensive: at this point, we do not have the bandwidth to moderate overtly political discussions. Assume best intent and be excellent to each other.
  3. Not regarding using or support for Lemmy: context, see the list of support communities and tools for finding communities below
  4. Not ad nauseam inducing: please make sure it is a question that would be new to most members
  5. An actual topic of discussion

Looking for support?

Looking for a community?

~Icon~ ~by~ ~@Double_A@discuss.tchncs.de~

founded 5 years ago
MODERATORS