sasogeek
  • sasogeek
what does this (~) mean in set notations?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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UnkleRhaukus
  • UnkleRhaukus
not
ash2326
  • ash2326
~A=not A or elements which are not in A
UnkleRhaukus
  • UnkleRhaukus
means the same as ( \(\neg\) )

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sasogeek
  • sasogeek
when used like this " ~A ", is that in relativity to the universal set?
UnkleRhaukus
  • UnkleRhaukus
yep
UnkleRhaukus
  • UnkleRhaukus
|dw:1348742799395:dw|
sasogeek
  • sasogeek
let's say A={1,2,3...} ~A={0 and all negative integers} right?
ash2326
  • ash2326
Yes :) if A is a subset of Integers
sasogeek
  • sasogeek
interesting :) thanks!
UnkleRhaukus
  • UnkleRhaukus
if the universal set is all numbers then 1/2 is also in ~A
ash2326
  • ash2326
|dw:1348742895139:dw|
sasogeek
  • sasogeek
your text is missing...
ash2326
  • ash2326
S=integers A=(1, 2,3,4 ..) ~A=(...-2, -1, 0)
sasogeek
  • sasogeek
oh ok, thanks :) that clears things up x you guys are awesome :)
ash2326
  • ash2326
Glad to help :)

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