“…For that reason, one often has to resort to the help of additional computationally costly procedures (e.g., see [3,4]). For instance, in [3] it is assumed that the initial information is represented by a square matrix in which the element is the probability that the object O j is more preferable than O i , that 2 Here and in what follows, we consider only binary relations; for that reason, the word binary is omitted. is, that in our interpretation.…”