Discrete mathematics
Sets
Cardinalities of unions, intersections, Cartesian products and power sets.
Discrete mathematics
Set union cardinality
|A∪B| = |A|+|B|−|A∩B|→Discrete mathematicsSet union
A ∪ B→Discrete mathematicsSet intersection
A ∩ B→Discrete mathematicsSet difference
A \ B→Discrete mathematicsSet symmetric difference
A △ B→Discrete mathematicsSet intersection cardinality
|A∩B| = |A|+|B|−|A∪B|→Discrete mathematicsCartesian product cardinality
|A×B| = |A||B|→Discrete mathematicsPower set cardinality
|P(A)| = 2^|A|→Discrete mathematicsSymmetric difference cardinality
|A△B| = |A|+|B|−2|A∩B|→