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MUIRIEL - Aug 26th 2010, 23:47
An integer is natural iff it is supérieur or equal to 0.
MUIRIEL - Aug 26th 2010, 23:47
linked to 482029
MUIRIEL - Aug 26th 2010, 23:48
linked to 482055
MUIRIEL - Aug 26th 2010, 23:55
An integer is natural iff it is superior or equal to 0.
FeuDRenais - Aug 27th 2010, 00:23
linked to 482121
MUIRIEL - Aug 27th 2010, 01:32
An integer is natural iff it is greater or equal to 0.
Samer - Nov 20th 2010, 17:18
linked to 629260
fekundulo - Oct 10th 2012, 19:51
linked to 1911268
Juankarlos - Dec 27th 2012, 09:45
linked to 2106382

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Sentence #482049

eng
An integer is natural iff it is greater or equal to 0.

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Comments

  1. Aug 27th 2010, 00:01
    if
  2. Aug 27th 2010, 00:05
    no, iff.
    its an abbreviation for "if and only if"
    http://en.wikipedia.org/wiki/If_and_only_if
  3. Aug 27th 2010, 00:15
    I see. Thank you.
  4. Aug 27th 2010, 00:16
    you're welcome. I admit I was waiting for that comment ;).
  5. Aug 27th 2010, 00:25
    haha great, did you tag it "useful info" =D ?
  6. Aug 27th 2010, 00:28
    I did. But who on earth tagged it as controversial?
  7. Aug 27th 2010, 00:29
    (someone who has found a way to enter the imaginary domain, I suppose)
  8. Aug 27th 2010, 00:31
    No, I did, because the natural numbers are often defined to NOT include 0 :P.
  9. Aug 27th 2010, 00:33
    And so we enter the math department...
  10. Aug 27th 2010, 01:29
    Doesn't one usually speak of "greater" rather than "superior" in mathematics? I don't think I've ever seen it phrased like this.
  11. Aug 27th 2010, 01:31
    you're probably right, thx.
  12. Aug 27th 2010, 01:31
    That's why I added the second translation, actually.

    I was going to say that this was probably something from the French, but "superior to" is still very valid, IMO, even in English. More erudite books might use it. But yes, the more common natural thing would be "greater than".
  13. May 16th 2012, 10:19
    I'd like to go back to this "iff"

    Is it really possible to use this "word" in a sentence like this one?

    I believe it's just a short form of "if and only if" in logical formulas, for example you certainly might write: "For any p, q, and r: (p & q) & r iff p & (q & r)", but it's not a real sentence.

    Could you really "iff" in a normal sentence, like in the definition of a natural integer? Maybe you still have to write "An integer is natural if and only if it is greater or equal to 0"?
  14. May 17th 2012, 15:47
    I think it is used in what you call "normal" sentences.
    For example in the Wikipedia article, there are examples for it:
    http://en.wikipedia.org/wiki/If_and_only_if

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