Across
- 4. a statement in mathematics proven based on previously established statements
- 6. a theory stating that no more than four colors are needed to color a map so that no two adjacent regions share the same color
- 8. mathematician who helped prove the Four Color Theorem in 1976
Down
- 1. institution where the Four Color Theorem was proven
- 2. a statement in mathematics proven based on previously established statements
- 3. describing regions that share a common boundary on a map
- 5. mathematician who worked with Appel to prove the Four Color Theorem
- 7. a visual representation of regions used in the Four Color Theorem