Results 1 to 3 of 3

Math Help - Diviors of zero and invertible elements

  1. #1
    Super Member
    Joined
    Feb 2008
    Posts
    535

    Diviors of zero and invertible elements

    If D is a set, then the power set of D is the set P_D of all the subsets of D.

    For example, if D = {1,2,3}, the P_D = { 1, 2, 3, (1,2), (1,3), (2,3), (1,2,3) }

    Describe the divisors of zero and invertible elements. I'm supposed to do this for all D, but maybe if someone can show how this works with the above D, i will be able to move forward.

    Thanks a lot in advance!
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Member ModusPonens's Avatar
    Joined
    Aug 2010
    Posts
    125
    Thanks
    14

    Re: Diviors of zero and invertible elements

    That set has no ring structure. What's the definition of sum and multiplication?
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Super Member
    Joined
    Feb 2008
    Posts
    535

    Re: Diviors of zero and invertible elements

    My mistake. But i figured the problem out so disregard this post.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. group of invertible elements
    Posted in the Advanced Algebra Forum
    Replies: 5
    Last Post: November 8th 2012, 09:41 AM
  2. Replies: 8
    Last Post: November 27th 2011, 11:18 PM
  3. finding invertible elements of an operation
    Posted in the Advanced Algebra Forum
    Replies: 1
    Last Post: September 15th 2010, 07:57 PM
  4. finite ring with an odd number of invertible elements
    Posted in the Advanced Algebra Forum
    Replies: 1
    Last Post: October 28th 2008, 11:36 AM
  5. Replies: 1
    Last Post: June 14th 2008, 05:22 PM

Search Tags


/mathhelpforum @mathhelpforum