Sets

• Can 7 Drinks with 7 Flavors Make Infinite Varieties?
  With continuously variable proportions, seven flavors produce uncountably many mathematical mixtures; counting only flavor subsets gives 127 nonempty choices.
• What Is the Difference Between Bounded, Unbounded, Open, and Closed Sets?
  Open, closed, bounded, and unbounded describe different properties. Learn their definitions, classify common subsets of the real line, and avoid common mix-ups.