I read some book where 'card' symbol is used to signify number of elements in the set. But where is it from? What the full word could be for 'card'?
$\endgroup$What does 'card' stands for?
|
I read some book where 'card' symbol is used to signify number of elements in the set. But where is it from? What the full word could be for 'card'?
$\endgroup$