Symbols:Set Theory/Empty Set

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Empty Set

$\O$

The empty set:

$\O = \set {}$


The $\LaTeX$ code for \(\O\) is \O  or \varnothing or \empty.


Deprecated

An alternative but less attractive symbol for the empty set is $\emptyset$.

This symbol is deprecated on $\mathsf{Pr} \infty \mathsf{fWiki}$.


The $\LaTeX$ code for \(\emptyset\) is \emptyset .


Sources