My Math Forum  

Go Back   My Math Forum > College Math Forum > Abstract Algebra

Abstract Algebra Abstract Algebra Math Forum

LinkBack Thread Tools Display Modes
October 15th, 2009, 04:13 PM   #1
Joined: Sep 2009

Posts: 10
Thanks: 0

Proof question about isomorphic

Prove that Z and Q^x are not isomorphic
( Q^x is Q but not include zero
koukou8617 is offline  
October 15th, 2009, 09:55 PM   #2
Senior Member
Joined: Oct 2007
From: Chicago

Posts: 1,701
Thanks: 3

Re: Proof question about isomorphic

Show that Q* does not have a generator.
cknapp is offline  

  My Math Forum > College Math Forum > Abstract Algebra

isomorphic, proof, question

Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Forum Replies Last Post
isomorphic normal extensions Epsilon90 Abstract Algebra 4 November 28th, 2013 01:49 AM
(Q, +) not isomorphic with (Q*, x) Kappie Abstract Algebra 9 March 5th, 2012 12:53 PM
Isomorphic Groups..U(8) and Z4 jcrot30 Abstract Algebra 5 March 31st, 2011 08:51 AM
Isomorphic cloudtifa Number Theory 1 November 12th, 2010 10:42 AM
Isomorphic Connected Graphs coolhandluke Applied Math 3 April 13th, 2010 08:51 AM

Copyright © 2018 My Math Forum. All rights reserved.