1. Monotonic: a family of criteria is monotonic only if, for each pair of alternatives
i1 and i2, for which gc1 (i1) > gc1 (i2) for one criterion c1 and gc(i1) = gc(i2) for
every other criterion c ̸= c1, it can be assumed that alternative i1 is preferred to
alternative i2.
2. Exhaustive: a family of criteria is exhaustive only if, for each pair of alternatives
i1 and i2, for which gc(i1) = gc(i2) upon each criterion c, we can assume that i1
and i2 are equivalent.
3. Non-redundant: a family of criteria is non-redundant only if the removal of any
one of the criteria leads to the violation of one of the other two properties.