1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Binary relation in a cartesian product

  1. Nov 6, 2007 #1
    How many binary relation can be formed from the cartesian product below:
    A = { 1 , 2 } & B = {a }
    i know there are two ordered pairs in this cartesian products A * B.
    i also know that there are 4 binary realtions. could someone please write
    those four relations for me, i am really confused here.
     
  2. jcsd
  3. Nov 6, 2007 #2

    HallsofIvy

    User Avatar
    Staff Emeritus
    Science Advisor

    {(1, a)}, {(2, a)}, {(a, 1)}, and {(a, 2)}.
     
  4. Nov 6, 2007 #3
    I'd imagine, they're actually something more like these: {}, {(1, a)}, {(2, a)}, and {(1, a), (2, a)}...
     
  5. Nov 9, 2007 #4
    thanx. i really apprecite u for this
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Binary relation in a cartesian product
  1. Cartesian product (Replies: 7)

  2. The Cartesian Product (Replies: 9)

  3. Cartesian Products (Replies: 7)

Loading...