Power Set/Examples/Empty Set

Example of Power Set

Let $\O$ denote the empty set.


Then the power set of $\O$ is:

$\powerset \O = \set \O$

and so has $2^0 = 1$ element.


Sources

  • 1975: T.S. Blyth: Set Theory and Abstract Algebra ... (previous) ... (next): $\S 2$. Sets of sets: Exercise $2$
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