- The written history of Maplewood begins about 165 years ago when European and French-Canadian settlers began farming in this area. Prior to this time, the land was inhabited by the Dakota Indians with occasional visits by French and English fur traders and explorers. The landscape was a mix of scrub oak and prairie with many wetlands and lakes.
- Set-builder notation (Wikipedia)
In set theory and its applications to logic, mathematics, and computer science, set-builder notation is a mathematical notation for describing a set by enumerating its elements, or stating the properties that its members must satisfy.