Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Ring Theory Question

  1. Aug 23, 2011 #1
    Suppose that there is an integer n>1, such that an=a for all elements of some ring. If m is a positive integer and am=0 for some a , then I have to show that a=0. Please suggest.
     
  2. jcsd
  3. Aug 23, 2011 #2

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    hi mehtamonica! :wink:

    if m ≤ n, it's obvious

    and for m > n … ? :smile:
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook




Loading...