title: Ternary commutator
text: # Ternary commutator
  
  In mathematical physics, the ternary commutator is an additional ternary operation on a triple system defined by
  
      $[a,b,c]=abc-acb-bac+bca+cab-cba.\,$
  
  Also called the ternutator or alternating ternary sum, it is a special case of the n-commutator for n = 3, whereas the 2-commutator is the ordinary commutator.
  
  ## Properties
  
  * When one or more of a, b, c is equal to 0, [a, b, c] is also 0. This statement makes 0 the absorbing element of the ternary commutator.
     * The same happens when a = b = c.
  