Symbols:Set Theory/Cardinality

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$\card S$

The cardinality of the set $S$.

For finite sets, this means the number of elements in $S$.

The $\LaTeX$ code for \(\card {S}\) is \card {S} .

Also see


Symbols:Absolute Value
Symbols:Complex Modulus
Symbols:Order of Structure
Symbols:Order of Group Element

for other uses of this symbol.