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sasogeek Group Title

what does this (~) mean in set notations?

  • 2 years ago
  • 2 years ago

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  1. UnkleRhaukus Group Title
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    not

    • 2 years ago
  2. ash2326 Group Title
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    ~A=not A or elements which are not in A

    • 2 years ago
  3. UnkleRhaukus Group Title
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    means the same as ( \(\neg\) )

    • 2 years ago
  4. sasogeek Group Title
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    when used like this " ~A ", is that in relativity to the universal set?

    • 2 years ago
  5. UnkleRhaukus Group Title
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    yep

    • 2 years ago
  6. UnkleRhaukus Group Title
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    |dw:1348742799395:dw|

    • 2 years ago
  7. sasogeek Group Title
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    let's say A={1,2,3...} ~A={0 and all negative integers} right?

    • 2 years ago
  8. ash2326 Group Title
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    Yes :) if A is a subset of Integers

    • 2 years ago
  9. sasogeek Group Title
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    interesting :) thanks!

    • 2 years ago
  10. UnkleRhaukus Group Title
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    if the universal set is all numbers then 1/2 is also in ~A

    • 2 years ago
  11. ash2326 Group Title
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    |dw:1348742895139:dw|

    • 2 years ago
  12. sasogeek Group Title
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    your text is missing...

    • 2 years ago
  13. ash2326 Group Title
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    S=integers A=(1, 2,3,4 ..) ~A=(...-2, -1, 0)

    • 2 years ago
  14. sasogeek Group Title
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    oh ok, thanks :) that clears things up x you guys are awesome :)

    • 2 years ago
  15. ash2326 Group Title
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    Glad to help :)

    • 2 years ago
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