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2bornot2b Group Title

What is the difference between the terms denumerable and enumerable.

  • 2 years ago
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  1. satellite73 Group Title
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    synonyms

    • 2 years ago
  2. 2bornot2b Group Title
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    What's the meaning of them?

    • 2 years ago
  3. satellite73 Group Title
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    a set is "denumarable" if you can count the elements first, second, third etc

    • 2 years ago
  4. satellite73 Group Title
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    just like when you first learn math as a 4 year old by learning to count things. denumerable means "countable"

    • 2 years ago
  5. KingGeorge Group Title
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    A denumerable set is a so-called countable set, an an enumerable set is something that seems to be used in computer science, but is essentially the same thing.

    • 2 years ago
  6. satellite73 Group Title
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    and counting things means you are assigning a positive integer to each item first item, second item, third item, etc so it is actually pretty sophisticated. you are creating a one to one function from the positive integers to the elements of the set

    • 2 years ago
  7. satellite73 Group Title
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    so to be very formal, you can say a set S is "denumerable" "countable" etc if there is an injective function (one to one function) from \[S \to \mathbb N\]

    • 2 years ago
  8. 2bornot2b Group Title
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    what are you talking about @robot1234

    • 2 years ago
  9. FoolForMath Group Title
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    http://mathoverflow.net/questions/20823/denumerable-sets

    • 2 years ago
  10. satellite73 Group Title
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    think maybe robot is bored

    • 2 years ago
  11. 2bornot2b Group Title
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    Might be a clever method of squeezing a medal from someone who thinks robot1234 is helping

    • 2 years ago
  12. FoolForMath Group Title
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    Lol!

    • 2 years ago
  13. satellite73 Group Title
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    watch this

    • 2 years ago
  14. 2bornot2b Group Title
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    I have seen these earlier, users coming in and just posting a nonsense and expecting to get a medal.

    • 2 years ago
  15. 2bornot2b Group Title
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    This is a good trick after all

    • 2 years ago
  16. FoolForMath Group Title
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    Driveling for medals lol!

    • 2 years ago
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