YES(?,O(n^2))

Problem:
 *(x,*(minus(y),y)) -> *(minus(*(y,y)),x)

Proof:
 Complexity Transformation Processor:
  strict:
   *(x,*(minus(y),y)) -> *(minus(*(y,y)),x)
  weak:
   
  Matrix Interpretation Processor:
   dimension: 2
   max_matrix:
    [1 1]
    [0 1]
    interpretation:
                   [1 1]     [1 1]  
     [*](x0, x1) = [0 1]x0 + [0 1]x1,
     
                   [1 0]     [1]
     [minus](x0) = [0 0]x0 + [1]
    orientation:
                          [1 1]    [2 2]    [3]    [1 1]    [2 2]    [2]                     
     *(x,*(minus(y),y)) = [0 1]x + [0 1]y + [1] >= [0 1]x + [0 0]y + [1] = *(minus(*(y,y)),x)
    problem:
     strict:
      
     weak:
      *(x,*(minus(y),y)) -> *(minus(*(y,y)),x)
    Qed