Finding the converse of Euclid's fifth postulate (parallel postulate)

  1. Sep 6, 2011 #1
    1. The problem statement, all variables and given/known data

    I have to state the converse of the following sentence:


    3. The attempt at a solution

    The statement is a mouthful, so I just want to make sure I got the converse right.

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  2. jcsd
  3. Sep 7, 2011 #2

    Stephen Tashi

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    I think you'd do better to begin "If two lines produced indefinitely meet on a side of a straight line that falls upon them then on that side ...."

    Are you taking old fashioned geometry?
     
  4. Sep 7, 2011 #3

    HallsofIvy

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    The converse of any statement of the form "if A then B" is "if B then A".
     
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