My Math Forum  

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

Algebra Pre-Algebra and Basic Algebra Math Forum

LinkBack Thread Tools Display Modes
December 24th, 2017, 03:48 AM   #1
Senior Member
Joined: Nov 2015
From: hyderabad

Posts: 242
Thanks: 4

Equivalence Relation

I have come across a question as "The number of equivalence relations that can be defined on a set with two elements is " and same question for 3 elements as well.

Since I have the answers with me I am thinking the possible general term would be $\displaystyle 2^n - n$

Someone correct me
Lalitha183 is offline  
December 24th, 2017, 08:22 AM   #2
Global Moderator
Joined: Dec 2006

Posts: 21,132
Thanks: 2340

In general, it's not $2^n - n$.
skipjack is online now  

  My Math Forum > High School Math Forum > Algebra

equivalence, relation

Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Forum Replies Last Post
relation equivalence kanchinha123 Elementary Math 1 August 28th, 2016 03:57 PM
Equivalence relation. cdummie Abstract Algebra 2 July 13th, 2015 09:24 AM
Equivalence Relation Taladhis Abstract Algebra 2 February 11th, 2013 09:20 AM
Equivalence Relation jrklx250s Real Analysis 3 December 7th, 2011 11:42 AM
Equivalence relation Dontlookback Abstract Algebra 1 April 20th, 2010 12:52 PM

Copyright © 2019 My Math Forum. All rights reserved.