My Math Forum  

Go Back   My Math Forum > High School Math Forum > Elementary Math

Elementary Math Fractions, Percentages, Word Problems, Equations, Inequations, Factorization, Expansion


Thanks Tree4Thanks
  • 1 Post By Micrm@ss
  • 3 Post By Micrm@ss
Reply
 
LinkBack Thread Tools Display Modes
January 13th, 2019, 12:17 AM   #1
Member
 
Joined: Apr 2017
From: India

Posts: 39
Thanks: 0

Classes and sets

What is the difference between a class and a set? Please give some simple examples. I have seen statements like "Let M be a class of subsets of X...", and it seems to me we can still do everything we like as though M is a set, and we are just avoiding the word "set" and replace it with "class".
And what is this pardox theory? I am unable to grab the simple difference in them. Please help.
shashank dwivedi is offline  
 
January 13th, 2019, 12:22 AM   #2
Senior Member
 
Joined: Oct 2009

Posts: 684
Thanks: 222

What subject are you doing? If you're not doing axiomatic set theory, then you can safely assume class and set to be synonymous. For example in measure theory, you'd say that a sigma algebra is a class of subsets of X, where they actually mean it's a set of subsets.

If you're doing axiomatic set theory, there is a big difference though.
Thanks from topsquark
Micrm@ss is offline  
January 13th, 2019, 04:33 AM   #3
Member
 
Joined: Apr 2017
From: India

Posts: 39
Thanks: 0

I have started the chapter on Probability and Statistics and this was the introductory part of the course. So, is it relevant to know the difference between the two or I can safely assume both to be same.
shashank dwivedi is offline  
January 13th, 2019, 06:11 AM   #4
Senior Member
 
Joined: Oct 2009

Posts: 684
Thanks: 222

Quote:
Originally Posted by shashank dwivedi View Post
I have started the chapter on Probability and Statistics and this was the introductory part of the course. So, is it relevant to know the difference between the two or I can safely assume both to be same.
In the context of your course, both are the same.
Micrm@ss is offline  
Reply

  My Math Forum > High School Math Forum > Elementary Math

Tags
classes, sets



Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Congruence Classes LaC0saNostra Applied Math 4 October 27th, 2012 05:02 PM
Classes of equations? thadroberts77 Linear Algebra 2 January 27th, 2012 01:54 AM
Equivalence classes liangteh Applied Math 8 March 12th, 2011 05:31 PM
isomorphism classes tsmith Abstract Algebra 1 May 10th, 2010 03:01 PM





Copyright © 2019 My Math Forum. All rights reserved.