Results 1 to 2 of 2

Math Help - Prove that if |A| ≤ |B| and |B| ≤ |C| then |A| ≤ |C|

  1. #1
    Newbie
    Joined
    Mar 2008
    Posts
    8

    Question Prove that if |A| ≤ |B| and |B| ≤ |C| then |A| ≤ |C|

    Hello,
    Can anyone help me on this question please ?

    Prove that if |A| ≤ |B| and |B| ≤ |C| then |A| ≤ |C|
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Global Moderator

    Joined
    Nov 2005
    From
    New York City
    Posts
    10,616
    Thanks
    9
    Quote Originally Posted by Jessica.M View Post
    Hello,
    Can anyone help me on this question please ?

    Prove that if |A| ≤ |B| and |B| ≤ |C| then |A| ≤ |C|
    There are injections: \phi: A\mapsto B \mbox{ and }\psi : B\mapsto C.
    Hint: \psi \circ \phi : A\mapsto C.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. [SOLVED] Given that -5≤x≤5 and -10≤y≤-2, find
    Posted in the Pre-Calculus Forum
    Replies: 2
    Last Post: October 2nd 2011, 05:12 AM
  2. Replies: 2
    Last Post: March 19th 2011, 01:38 AM
  3. Replies: 3
    Last Post: July 27th 2010, 03:46 PM
  4. Replies: 10
    Last Post: November 15th 2009, 06:04 PM
  5. Replies: 1
    Last Post: May 27th 2008, 07:56 AM

Search Tags


/mathhelpforum @mathhelpforum