SOLUTION: Use Set-builder Notation to represent digits 0 to 9.
Let D be a set.
D = {x | x is a digit}
Is this correct in terms of set theory?
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sets and operations
-> SOLUTION: Use Set-builder Notation to represent digits 0 to 9.
Let D be a set.
D = {x | x is a digit}
Is this correct in terms of set theory?
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Your math textbook may write it like this
The portion translates to "x is in the set of integers" i.e. "x is an integer".
Why is Z used for the set of integers? The Z stands for Zahl, which is a German word meaning "number".
More info found here https://mathworld.wolfram.com/Z.html