title: Nonlocality
text: # Nonlocality
  
  Nonlocality may refer to:
  
  * Action at a distance, the concept in physics of nonlocal interactions
     * Principle of locality, the opposite of action at a distance
  * Quantum nonlocality, nonlocal phenomena in quantum mechanics
  * Nonlocal Lagrangian, a type of Lagrangian (a mathematical function)
  