Cartesian Product of Sets
what is cartesian product
In mathematics, specifically set theory, the Cartesian product of two sets A and B, denoted A × B, is the set of all ordered pairs where a is in A and b is in B. In terms of set-builder notation, that is {\displaystyle A\times B=\{\mid a\in A\ {\mbox{ and }}\ b\in B\}.}