May 26th, 2017, 12:10 AM  #1 
Member Joined: May 2017 From: USA Posts: 31 Thanks: 0  Infinity
Infinity is always more than 0 and less than 1!

May 26th, 2017, 12:39 AM  #2 
Senior Member Joined: Feb 2016 From: Australia Posts: 1,798 Thanks: 634 Math Focus: Yet to find out. 
Why

May 26th, 2017, 12:55 AM  #3 
Member Joined: May 2017 From: USA Posts: 31 Thanks: 0 
Because, anything greater than 1 is combination of 1s. Thanks

May 26th, 2017, 01:46 AM  #4 
Senior Member Joined: Feb 2016 From: Australia Posts: 1,798 Thanks: 634 Math Focus: Yet to find out. 
Are you high?

May 26th, 2017, 02:22 AM  #5 
Senior Member Joined: Apr 2014 From: Glasgow Posts: 2,155 Thanks: 731 Math Focus: Physics, mathematical modelling, numerical and computational solutions 
*Badum tish*

May 26th, 2017, 05:53 AM  #6 
Senior Member Joined: Jun 2014 From: USA Posts: 525 Thanks: 40 
I'm a sucker for threads that ponder the infinite, even when they lead to nonsense. I saw this, got interested, clicked on it, and then wow... just wow. You got me. Good one. 
May 26th, 2017, 09:17 AM  #7 
Member Joined: May 2017 From: USA Posts: 31 Thanks: 0 
Thank you all. Than here is one question for you guys: how many infinities are in between 0 and 1?

May 26th, 2017, 11:14 AM  #8  
Senior Member Joined: Jun 2014 From: USA Posts: 525 Thanks: 40  Quote:
If I consider the number of different infinite subsets of rational numbers that can be created from the rationals on the interval (0, 1), then the answer is a cardinal number commonly denoted $2^{\aleph_0}$.  
May 26th, 2017, 11:28 AM  #9 
Member Joined: May 2017 From: USA Posts: 31 Thanks: 0 
Thanks again! Well, how should I describe for example: 0.11111... or 0.99999... or 0.12451234512345... Do they belong to "infinity" ? Just curious. Thanks 
May 26th, 2017, 12:01 PM  #10  
Senior Member Joined: Aug 2012 Posts: 2,306 Thanks: 706  Quote:
To clarify this, consider the decimal .1234512345... Now that looks like it encodes an infinite amount of information. But actually it has a repeating block so it's a rational number. In fact it's $\frac{12345}{99999}$. So it only encodes two whole numbers, not infinitely many. A number is an abstract object that may have many different representations. A real number has a decimal representation (sometimes two) but the representation is not the number. It does happen to be the case that decimal representation is flawed. Some numbers have two different representations. Others only encode a finite amount of information, yet their decimal representation is infnite, as we saw with $.1234512345 \dots$ So we shouldn't confuse a finite number with its infinite decimal representation. In fact all real numbers are finite numbers.  

Tags 
infinity 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
To infinity and beyond  shunya  Elementary Math  5  July 18th, 2014 09:09 AM 
is 1/infinity = lim x>infinity 1/x  sivela  Calculus  1  June 25th, 2012 10:04 AM 
Infinity...  nerd9  Algebra  22  July 18th, 2010 03:47 PM 
Solve X where infinity>x>infinity  DQ  Algebra  5  September 14th, 2009 05:13 AM 
infinity  fibonaccilover  Applied Math  9  July 26th, 2009 08:07 PM 