My Math Forum > Math New blog: Infinity Plus One

 Math General Math Forum - For general math related discussion and news

 January 21st, 2017, 07:56 PM #1 Newbie   Joined: Jan 2017 From: California Posts: 1 Thanks: 0 New blog: Infinity Plus One So, I've started a new blog, Infinity Plus One, discussing more advanced math topics, but aimed at a lay audience. I thought this forum looked like a place where people interested in this kind of resource (or who know those who would be) congregate. So, here are links for my first two posts. I hope you enjoy them. First post: Infinity plus one Second post: The size of infinity
January 21st, 2017, 09:35 PM   #2
Math Team

Joined: May 2013
From: The Astral plane

Posts: 1,558
Thanks: 599

Math Focus: Wibbly wobbly timey-wimey stuff.
Quote:
 Originally Posted by Ryleem So, I've started a new blog, Infinity Plus One, discussing more advanced math topics, but aimed at a lay audience. I thought this forum looked like a place where people interested in this kind of resource (or who know those who would be) congregate. So, here are links for my first two posts. I hope you enjoy them. First post: Infinity plus one Second post: The size of infinity
Nice work overall. But stop referring to infinity as a number. It is not in any way shape or form a number.

-Dan

January 21st, 2017, 09:56 PM   #3
Senior Member

Joined: Sep 2016
From: USA

Posts: 114
Thanks: 44

Math Focus: Dynamical systems, analytic function theory, numerics
Quote:
 Originally Posted by topsquark Nice work overall. But stop referring to infinity as a number. It is not in any way shape or form a number. -Dan
I think we tell calculus students this because they aren't yet equipped with methods to handle the number infinity. However, I disagree that infinity is not a number in any way. There are multiple contexts in which infinity is a perfectly good number and a blog discussing advanced math topics is likely to cover these.

January 21st, 2017, 11:17 PM   #4
Math Team

Joined: May 2013
From: The Astral plane

Posts: 1,558
Thanks: 599

Math Focus: Wibbly wobbly timey-wimey stuff.
Quote:
 Originally Posted by SDK I think we tell calculus students this because they aren't yet equipped with methods to handle the number infinity. However, I disagree that infinity is not a number in any way. There are multiple contexts in which infinity is a perfectly good number and a blog discussing advanced math topics is likely to cover these.
You can label the cardinal number $\displaystyle \aleph _0$ but you can't change the fact that you can't count to it.

I did make a slight mistake, however. I forget the name of the system but it is the real numbers with infinity attached, rather like the closure of the real line. I think it's called the extended real line or something of that nature.

-Dan

 January 21st, 2017, 11:22 PM #5 Math Team   Joined: Dec 2013 From: Colombia Posts: 6,778 Thanks: 2195 Math Focus: Mainly analysis and algebra The extended real line doesn't include a number "infinity". It's more like a set of names for limit points. Thanks from topsquark

 Tags blog, infinity

 Thread Tools Display Modes Linear Mode

 Similar Threads Thread Thread Starter Forum Replies Last Post Lazzarus Academic Guidance 2 December 31st, 2014 05:36 PM mathsissmart Art 7 February 22nd, 2012 02:02 PM DLowry New Users 3 April 2nd, 2011 10:13 AM Francis410 Algebra 3 December 28th, 2010 07:31 PM mathsissmart New Users 2 January 1st, 1970 12:00 AM

 Contact - Home - Forums - Cryptocurrency Forum - Top