## Set Theory Ordered Pairs and Cartesian Product with R

Ordered and Unordered Pairs A pair set is a set with two members, for example, [latex]\{2, 3\}[/latex], which can also be thought of as an unordered pair, in that [latex]\{2, 3\} = \{3, 2\}[/latex]. However, we seek a more a strict and rich object that tells us more about two sets...