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Thabo

  • 2 years ago

What is a number

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  1. pratu043
    • 2 years ago
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    A number is a number.

  2. cesar2462
    • 2 years ago
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    #

  3. fallingangel
    • 2 years ago
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    A numeral or group of numerals. The sum, total, count, or aggregate of a collection of units.

  4. dogs_best1997
    • 2 years ago
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    123467890 is the numbers

  5. pratu043
    • 2 years ago
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    It is something that is used for counting ...

  6. glgan1
    • 2 years ago
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    A number is a symbol.

  7. dogs_best1997
    • 2 years ago
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    A number is a concept from mathematics, used to count or measure.

  8. vamgadu
    • 2 years ago
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    its the alphabet of a language . +1 @glgan1

  9. estudier
    • 2 years ago
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    Depending on who you believe, it's a set (and so is everything else)

  10. Thabo
    • 2 years ago
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    Guys, a simple but mathematical explanation

  11. dogs_best1997
    • 2 years ago
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    Natural numbers are the numbers which we normally use for counting, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10

  12. fallingangel
    • 2 years ago
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    What I said. A numeral or group of numerals. The sum, total, count, or aggregate of a collection of units.

  13. estudier
    • 2 years ago
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    Is sqrt 2 a number?

  14. shubhamsrg
    • 2 years ago
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    google over or go for wikipedia for orthodox results..

  15. Thabo
    • 2 years ago
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    Ok. a number is a measure of quantity

  16. estudier
    • 2 years ago
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    "Ok. a number is a measure of quantity" So 2 is a measure of 2?

  17. Thabo
    • 2 years ago
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    Yes, a "simple" as that

  18. estudier
    • 2 years ago
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    That isn't simple, it is circular and doesn't mean anything...

  19. Thabo
    • 2 years ago
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    How is my definition wrong

  20. estudier
    • 2 years ago
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    It is the same as saying 2=2 which is not wrong, just devoid of meaning.

  21. estudier
    • 2 years ago
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    That's an improvement....what is "arithmetical"?

  22. estudier
    • 2 years ago
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    Now you have gone all circular as well...:-)

  23. Thabo
    • 2 years ago
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    Give us your definition then

  24. estudier
    • 2 years ago
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    I already said, if you don't want to take the "naturals" as given, then you canuse a set theoretical construction of number, starting withy the empty set.

  25. Thabo
    • 2 years ago
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    I don't understand you

  26. estudier
    • 2 years ago
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    Assuming you want a "mathematical" definition of number, then you need to find a way to use set theory to do it because that is the currently accepted foundation for mathematics.

  27. Thabo
    • 2 years ago
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    I just wanted to know what is a number according to you guys that all

  28. estudier
    • 2 years ago
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    Mathematically, it is a set.

  29. estudier
    • 2 years ago
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    "properties of the natural and real numbers can be derived within set theory, as each number system can be identified with a set of equivalence classes under a suitable equivalence relation whose field is some infinite set" http://en.wikipedia.org/wiki/Set_theory#Axiomatic_set_theory

  30. Thabo
    • 2 years ago
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    oh, that a pretty interesting definition. Thanks

  31. estudier
    • 2 years ago
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    Normally, for day to day mathematics, you don't really need this. Another way is just to take the naturals (beginning with 0 or 1 according to taste) as being somehow "God given" and then get everything else from those.

  32. Thabo
    • 2 years ago
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    Ok. thanks everyone!

  33. SmoothMath
    • 2 years ago
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    This is really almost an epistemology question more than a mathematical one. Mathematics solves problems based on the foreknowledge of numbers and counting. At least for the common man, knowledge of numbers is axiomatic, it is understood knowledge that other knowledge can be derived from.

  34. hreeg97
    • 2 years ago
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    an arithmetical value, expressed by a word, symbol, or figure, representing a particular quantity and used in counting and making calculations and for showing order in a series or for identification

  35. UnkleRhaukus
    • 2 years ago
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    A number is a measurement without units

  36. Thabo
    • 2 years ago
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    Oh, not what do you mean?

  37. UnkleRhaukus
    • 2 years ago
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    Numbers come from measurements, i.e. from the comparison of a selection of reality with a scale or rule, where the selection is best represented on the scale, is designated a number, to distinguish it from another place on the scale

  38. Thabo
    • 2 years ago
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    Yes, I like that word "comparison"

  39. UnkleRhaukus
    • 2 years ago
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    i really like this question

  40. UnkleRhaukus
    • 2 years ago
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    would numbers mean anything at all if well didn't use the same scales?

  41. JoJo-Phoenix
    • 2 years ago
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    A number shows the amount of something and was created to show how much something was.

  42. JoJo-Phoenix
    • 2 years ago
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    For instance, many thousand years ago people had animals, and then they suddenly wanted to count them, so they created the first numbers, just some line that show the amount

  43. Thabo
    • 2 years ago
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    There would be trouble in this world without "comparison"

  44. SmoothMath
    • 2 years ago
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    The truth is, numbers, just like words, are defined arbitrarily, but are useful for human communication of ideas that are inherent in reality.

  45. UnkleRhaukus
    • 2 years ago
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    truth is a binary measurement , requiring a measurer , such as a person

  46. UnkleRhaukus
    • 2 years ago
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    0=False 1=True, are these arbitrary, @SmoothMath

  47. SmoothMath
    • 2 years ago
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    Yes.

  48. UnkleRhaukus
    • 2 years ago
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    i think so too

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