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

Elements of a set

  1. Nov 7, 2008 #1
    If a question asks me to prove something about the elements of a set, say {0,1,a,b}, then is it assumed that all elements are distinct?

    Because I am attempting a proof, but the only way to prove the proposition is if all elements are distinct. However, it doesn't say in the original question that all elements are distinct, which leads me to my question.
     
  2. jcsd
  3. Nov 7, 2008 #2

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    Hi JG89! :smile:

    Yes, if an exam question defines a set as including particular elements, then they are all distinct. :smile:
     
    Last edited: Nov 7, 2008
  4. Nov 7, 2008 #3
    Thanks :)
     
  5. Nov 7, 2008 #4

    Hurkyl

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    Conventions vary. The OP ought to ask his professor before making such a dangerous assumption.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Elements of a set
  1. Grouping Elements (Replies: 1)

  2. Identity Element (Replies: 2)

Loading...