Abs: THEORY
 BEGIN
  IMPORTING Int
  % do not edit above this line
  
  % Why3 abs_le
  abs_le: LEMMA FORALL (x:int, y:int): (abs(x) <= y) <=> (((-y) <= x) AND
    (x <= y))
  
  % Obsolete chunk abs_pos
  % abs_pos: LEMMA FORALL (x:int): (abs1(x) >= 0)
  
 END Abs
 