20151013, 14:39  #12  
Nov 2003
2^{2}×5×373 Posts 
Quote:
Your comments do not add anything and will only confuse the naiive reader. 

20151013, 14:43  #13 
Undefined
"The unspeakable one"
Jun 2006
My evil lair
6441_{10} Posts 

20151013, 14:46  #14 
Aug 2002
Buenos Aires, Argentina
1446_{10} Posts 
I think that's why lots of computational power is used to trial factoring the Mersenne number 2^{2^1271}1. Unfortunately there are many people who believe (I do not why) that this particular number is prime.

20151013, 14:48  #15  
Nov 2003
2^{2}·5·373 Posts 
Quote:
and whose knowledge of mathematics is nonsense has the same value as that of an expert. 

20151013, 14:55  #16 
Undefined
"The unspeakable one"
Jun 2006
My evil lair
3×19×113 Posts 
No. It implies that you don't have any control over people like that and what they write. Trying to censor posters is not the right solution IMO. Better to educate readers and teach them that not everything they read is accurate or true. Encouraging critical thinking is far more valuable than promoting a nanny forum where everything is supposedly controlled.
Last fiddled with by retina on 20151013 at 15:20 Reason: Errant 'a' 
20151013, 15:03  #17  
Nov 2003
2^{2}·5·373 Posts 
Quote:
whose math backgound is naiive may not be able to discern that SM88 spews nothing but nonsense. And such a person will not have knowledge of SM88's long history of doing so. And SM88's posts in this thread certainly distracts from the goal of trying to lead the OP to some understanding of what constitutes a proof. Indeed, his posts throughout the forum greatly contribute toward doing nothing but increasing the noise. 

20151013, 15:18  #18 
May 2004
New York City
5·7·11^{2} Posts 

20151013, 15:22  #19 
Aug 2002
Buenos Aires, Argentina
1446_{10} Posts 
This is for the original poster (other people please do not spoil):
Start with the number 41, which is prime. Add the number 2 and you get 43, which is prime. Then add 4 and you get 47 which is prime again. Then add 6 and you get 53 which is prime again. Do this procedure say 30 times and you will always get primes. Now turn off the calculator. Does it mean that this always generates primes? If not, why not? Last fiddled with by alpertron on 20151013 at 15:27 
20151013, 15:23  #20 
Nov 2003
2^{2}×5×373 Posts 
Fortunately, for people who have more than two working brain cells, mathematics is not done by "belief".

20151013, 15:41  #21  
Nov 2003
2^{2}×5×373 Posts 
Quote:
"Do this 30 times" can be taken to mean, "add 2 then 4 then 6" 30 times. The meaning of the word "this" in your last sentence is not well defined. Math is a language in which it is possible to say exactly what is meant. Quote:
supply missing reasoning. I am asking him/her to explain why merely posting a sequence of numbers without any given reasoning might constitute a proof. My merely stating that what was presented isn't a proof does not teach anything. Indeed, it would constitute "proof by assertion". I am trying to address the more basic question: "what is a proof?". To do so, we must find out why the OP thought that what was presented is a proof. It isn't that the "reasoning" is wrong. The problem (I am getting repetitive) is that there was no reasoning supplied! 

20151013, 15:50  #22  
Nov 2003
1D24_{16} Posts 
Quote:
http://www.themathlab.com/geometry/funnyproofs.htm The given list is incomplete, of course. 

Thread Tools  
Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Official AVX512 programming thread  ewmayer  Programming  31  20161014 05:49 
Official Peeved Pets Thread  Prime95  Lounge  32  20151002 04:17 
Official 'Let's move the hyphen!' thread.  Flatlander  Lounge  29  20130112 19:29 
Is MM127 Prime? Just a Poll  jinydu  Miscellaneous Math  57  20081108 17:48 
Official Odd Perfect Number thread  ewmayer  Math  14  20081023 13:43 