Results 1 to 4 of 4

Math Help - a word proof

  1. #1
    Member
    Joined
    Aug 2007
    Posts
    148

    a word proof

    Hi everyone,

    Could someone please help me with this proof?

    I have to come up with a proof to show that a word, written in capital letters, is unchanged when reflected in a horizontal line and a vertical line. That just means that it needs to be able to be reflected across the x and y-axis, right?

    So, I need to find a word that just has I's O's and H's in it, right?

    Can anyone show me how to do a proof like this?

    Thank you very much
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Grand Panjandrum
    Joined
    Nov 2005
    From
    someplace
    Posts
    14,972
    Thanks
    4
    Quote Originally Posted by chocolatelover View Post
    Hi everyone,

    Could someone please help me with this proof?

    I have to come up with a proof to show that a word, written in capital letters, is unchanged when reflected in a horizontal line and a vertical line. That just means that it needs to be able to be reflected across the x and y-axis, right?

    So, I need to find a word that just has I's O's and H's in it, right?

    Can anyone show me how to do a proof like this?

    Thank you very much
    What about X and S?

    RonL
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Grand Panjandrum
    Joined
    Nov 2005
    From
    someplace
    Posts
    14,972
    Thanks
    4
    Quote Originally Posted by chocolatelover View Post
    Hi everyone,

    Could someone please help me with this proof?

    I have to come up with a proof to show that a word, written in capital letters, is unchanged when reflected in a horizontal line and a vertical line. That just means that it needs to be able to be reflected across the x and y-axis, right?

    So, I need to find a word that just has I's O's and H's in it, right?

    Can anyone show me how to do a proof like this?

    Thank you very much
    It is the word which is left unchanged after the two reflections, so if you had
    a palindrome composed of suitable letters then you would be home and dry.

    RonL
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Member
    Joined
    Aug 2007
    Posts
    148
    Thank you very much

    Regards
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 15
    Last Post: June 8th 2011, 11:13 AM
  2. Replies: 5
    Last Post: October 19th 2010, 10:50 AM
  3. product of two logs -proof without word
    Posted in the Geometry Forum
    Replies: 4
    Last Post: May 11th 2010, 01:06 AM
  4. [SOLVED] direct proof and proof by contradiction
    Posted in the Number Theory Forum
    Replies: 2
    Last Post: February 27th 2010, 10:07 PM
  5. proof that the proof that .999_ = 1 is not a proof (version)
    Posted in the Advanced Applied Math Forum
    Replies: 4
    Last Post: April 14th 2008, 04:07 PM

Search Tags


/mathhelpforum @mathhelpforum