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List all the subsets and all the proper subsets of the set {-1, 0, 1}.

1 Answer

Let A = {-1, 0, 1}.
Subset of A having no element is: $ \phi $
Subset of A having no element is:{-1}, {0}, {1}
Subsets of A having two elements are: {-1, 0}, {0, 1}, {-1, 1}.
Subsets of A having three elements: {-1, 0, 1}.
Thus, all the subsets of A are:
$ \phi$, {-1}, {0}, {1}, {-1, 0}, {0, 1}, {-1, 1}, {-1, 0, 1}
Proper subsets of A are:
$\phi$, {-1}, {0}, {1}, {-1, 0}, {0, 1}, {-1, 1}.
answered Jun 12, 2014 by thanvigandhi_1
 

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