title: Stone's theorem
text: # Stone's theorem
  
  Stone's theorem may refer to a number of theorems of Marshall Stone:
  
  * Stone's representation theorem for Boolean algebras
  * Stone–Weierstrass theorem
  * Stone–von Neumann theorem
  * Stone's theorem on one-parameter unitary groups
  
  It may also refer to the theorem of A. H. Stone that for Hausdorff spaces the property of being a paracompact space and being a fully normal space are equivalent, or its immediate corollary that metric spaces are paracompact.
  
  